STERLING SOFTWARE INC
S-4, 1994-10-27
PREPACKAGED SOFTWARE
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<PAGE>
 
   AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON OCTOBER 27, 1994
 
                                                        REGISTRATION NO. 33-
 
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
 
                      SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C. 20549
 
                               ----------------
                                   FORM S-4
                            REGISTRATION STATEMENT
                                     UNDER
                          THE SECURITIES ACT OF 1933
 
                               ----------------
                            STERLING SOFTWARE, INC.
            (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)
 
                               ----------------
        DELAWARE                     7372                    75-1873956
     (STATE OR OTHER           (PRIMARY STANDARD          (I.R.S. EMPLOYER
     JURISDICTION OF              INDUSTRIAL             IDENTIFICATION NO.)
    INCORPORATION OR          CLASSIFICATION CODE
      ORGANIZATION)                 NUMBER)
 
       8080 NORTH CENTRAL EXPWY.                 JEANNETTE P. MEIER
              SUITE 1100                      EXECUTIVE VICE PRESIDENT,
          DALLAS, TEXAS 75206               GENERAL COUNSEL AND SECRETARY
            (214) 891-8600                     8080 N. CENTRAL EXPWY.
   (ADDRESS, INCLUDING ZIP CODE, AND                 SUITE 1100
TELEPHONE NUMBER, INCLUDING AREA CODE,           DALLAS, TEXAS 75206
  OF REGISTRANT'S PRINCIPAL EXECUTIVE              (214) 891-8600
                OFFICE)                  (NAME, ADDRESS, INCLUDING ZIP CODE,
                                        AND TELEPHONE NUMBER, INCLUDING AREA
                                             CODE, OF AGENT FOR SERVICE)
 
                               ----------------
                                  COPIES TO:
        CHARLES D. MAGUIRE, JR.                   MAURICE N. MALOOF
       JACKSON & WALKER, L.L.P.              HICKS, MALOOF & CAMPBELL,A
      901 MAIN STREET, SUITE 6000             PROFESSIONAL CORPORATION
          DALLAS, TEXAS 75202               SUITE 2200, MARQUIS TWO TOWER
            (214) 953-6000                285 PEACHTREE CENTER AVENUE, N.E.
                                               ATLANTA, GEORGIA 30303
                                                   (404) 588-1100
 
                               ----------------
  APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC: As promptly
as practicable after this Registration Statement becomes effective and the
effective time of the proposed merger (the "Merger") of a subsidiary of the
Registrant with and into KnowledgeWare, Inc. ("KnowledgeWare"), as described
in the Amended and Restated Agreement and Plan of Merger, dated as of August
31, 1994, attached as Exhibit A to the Proxy Statement/Prospectus forming a
part of this Registration Statement.
 
  If the securities being registered on this Form are being offered in
connection with the formation of a holding company and there is compliance
with General Instruction G, check the following box. [_]
 
                               ----------------
                        CALCULATION OF REGISTRATION FEE
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
<TABLE>
<CAPTION>
                                            PROPOSED       PROPOSED
TITLE OF EACH CLASS OF                      MAXIMUM        MAXIMUM      AMOUNT OF
   SECURITIES TO BE       AMOUNT TO BE   OFFERING PRICE   AGGREGATE    REGISTRATION
    REGISTERED(1)          REGISTERED       PER UNIT    OFFERING PRICE     FEE
- -----------------------------------------------------------------------------------
<S>                     <C>              <C>            <C>            <C>
Common Stock, $.10 par
 value per share        2,654,652 shares   $20.91(2)    $55,518,893(2)  $19,144(2)
</TABLE>
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
(1) This Registration Statement relates to securities of the Registrant
    issuable to holders of common stock of KnowledgeWare in connection with
    the Merger.
(2) Pursuant to Rule 457(f)(1), the registration fee was computed on the basis
    of the market value of the KnowledgeWare common stock to be exchanged in
    the Merger, computed in accordance with Rule 457(c) on the basis of the
    average of the high and low prices per share of such stock quoted on The
    Nasdaq National Market System on October 21, 1994. Pursuant to Rule
    457(b), the registration fee has been reduced by $14,473, the fee paid on
    September 2, 1994 upon the filing under the Securities Exchange Act of
    1934 of preliminary copies of the proxy materials included herein.
    Therefore, the registration fee payable upon the filing of this
    Registration Statement is $4,671.
 
                               ----------------
  THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT
SHALL FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS
REGISTRATION STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH
SECTION 8(A) OF THE SECURITIES ACT OF 1933 OR UNTIL THE REGISTRATION STATEMENT
SHALL BECOME EFFECTIVE ON SUCH DATE AS THE COMMISSION, ACTING PURSUANT TO SAID
SECTION 8(A), MAY DETERMINE.
 
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
<PAGE>
 
                             CROSS-REFERENCE SHEET
 
  PURSUANT TO ITEM 501(B) OF REGULATION S-K SHOWING THE LOCATION IN THE PROXY
     STATEMENT/PROSPECTUS OF THE INFORMATION REQUIRED BY PART I OF FORM S-4
 
<TABLE>
<CAPTION>
                                                  LOCATION IN PROXY
           FORM S-4 ITEM                         STATEMENT/PROSPECTUS
           -------------                         --------------------
<S>                                  <C>
A. INFORMATION ABOUT THE TRANSACTION
   1. Forepart of Registration
      Statement and Outside Front    
      Cover of Prospectus........... Forepart of the Registration Statement;
                                      Outside Front Cover Page               
   2. Inside Front and Outside Back
      Cover Pages of Prospectus..... Table of Contents; Available Information;
                                      Incorporation of Certain Documents by
                                      Reference
   3. Risk Factors, Ratio of
      Earnings to Fixed Charges and  
      Other Information............. Summary; Investment Considerations; The   
                                      Merger; The Merger Agreement; Certain    
                                      Information Regarding Sterling Software; 
                                      Certain Information Regarding            
                                      KnowledgeWare                             
   4. Terms of the Transaction...... Summary; The Special Meeting; The Merger;
                                      The Merger Agreement; Description of
                                      Sterling Software Capital Stock;
                                      Comparison of Stockholder Rights
   5. Pro Forma Financial            
      Information................... Summary; Pro Forma Combined Condensed
                                      Financial Information                
   6. Material Contacts with the
      Company Being Acquired........ Summary; The Merger; The Merger Agreement;
                                      The Stock Option Agreement; The
                                      Stockholder Agreements; The Escrow
                                      Agreement
   7. Additional Information
      Required for Reoffering by
      Persons and Parties Deemed to  
      be Underwriters............... Not Applicable 
   8. Interests of Named Experts and 
      Counsel....................... Legal Matters 
   9. Disclosure of Commission
      Position on Indemnification
      for Securities Act             
      Liabilities................... Not Applicable 

B. INFORMATION ABOUT THE REGISTRANT

  10. Information with Respect to S-
      3 Registrants................. Available Information; Incorporation of
                                      Certain Documents by Reference; Summary;
                                      The Merger; Certain Information Regarding
                                      Sterling Software; Description of Sterling
                                      Software Capital Stock
  11. Incorporation of Certain
      Information by Reference...... Incorporation of Certain Documents by
                                      Reference
  12. Information with Respect to S-
      2 or S-3 Registrants.......... Not Applicable
</TABLE>
<PAGE>
 
<TABLE>
<CAPTION>
                                                   LOCATION IN PROXY
            FORM S-4 ITEM                         STATEMENT/PROSPECTUS
            -------------                         --------------------
<S>                                   <C>
  13. Incorporation of Certain
      Information by Reference....... Not Applicable
  14. Information with Respect to
      Registrants Other Than S-3 or   
      S-2 Registrants ............... Not Applicable 

C. INFORMATION ABOUT THE COMPANY BEING ACQUIRED
  15. Information with Respect to S-3
      Companies...................... Available Information; Incorporation of
                                       Certain Documents by Reference; Summary;
                                       Investment Considerations; The Merger;
                                       Certain Information Regarding
                                       KnowledgeWare
  16. Information with Respect to S-2
      or S-3 Companies............... Not Applicable
  17. Information with Respect to
      Companies Other Than S-3 or S-2 
      Companies ..................... Not Applicable 

D. VOTING AND MANAGEMENT INFORMATION
  18. Information if Proxies,
      Consents or Authorizations Are  
      to Be Solicited ............... Summary; The Special Meeting; The Merger;
                                       The Stockholder Agreements; Stockholder 
                                       Proposals                                
  19. Information if Proxies,
      Consents or Authorizations are
      not to be Solicited or in an    
      Exchange Offer................. Not Applicable 
</TABLE>
<PAGE>
 
                              KNOWLEDGEWARE, INC.
                           3340 PEACHTREE ROAD, N.E.
                             ATLANTA, GEORGIA 30326
 
                                                                 OCTOBER  , 1994
 
Dear Stockholder:
 
  You are cordially invited to attend a Special Meeting of Stockholders of
KnowledgeWare, Inc. ("KnowledgeWare") to be held on November   , 1994, at the
Hotel Nikko, 3300 Peachtree Road, Atlanta, Georgia, commencing at 10:00 a.m.,
local time. At the meeting, you will be asked to consider and vote on a merger
(the "Merger") pursuant to which KnowledgeWare will become a wholly owned
subsidiary of Sterling Software, Inc. ("Sterling").
 
  The Amended and Restated Agreement and Plan of Merger provides for
KnowledgeWare common stockholders to receive up to .1653 of a share of Sterling
common stock for each share of KnowledgeWare common stock they own. Promptly
after the Merger, KnowledgeWare common stockholders will be entitled to receive
.1322 of a share of Sterling common stock for each share of KnowledgeWare
common stock; the remaining 20% of the number of shares of Sterling common
stock issuable upon effectiveness of the Merger will be placed in escrow (the
"Escrowed Shares") and thereafter distributed to KnowledgeWare common
stockholders only if and to the extent that such shares are not necessary to
cover certain losses, claims, liabilities, judgments, costs and expenses that
may be incurred by Sterling or KnowledgeWare in connection with certain claims,
litigation or other proceedings to which Sterling or KnowledgeWare is or may
become a party and with respect to which Sterling is entitled to
indemnification. Since August 30, 1994, a number of actions have been filed
against KnowledgeWare and certain of its officers alleging violations of
securities laws. Losses, claims, liabilities, judgments, costs or expenses
incurred by KnowledgeWare or Sterling in connection with these actions
(including amounts paid in settlement) will result in claims for
indemnification to be satisfied from the Escrowed Shares. In the event that all
the Escrowed Shares are used to cover losses, claims, liabilities, judgments,
costs or expenses incurred by KnowledgeWare or Sterling, no Escrowed Shares
will be distributed to KnowledgeWare common stockholders.
 
  Your Board of Directors has carefully considered the terms of the proposed
transaction, as well as the possibility that none of the Escrowed Shares may be
distributed to KnowledgeWare's stockholders, and believes that the transaction
is fair to and in the best interests of KnowledgeWare's stockholders. The
consummation of the Merger with Sterling represents an opportunity to create a
leading software and services company that provides greater financial and other
resources for KnowledgeWare's products, and that gives KnowledgeWare's
stockholders the opportunity to participate as stockholders in the future
prospects of the combined company. The investment banking firm of Alex. Brown &
Sons Incorporated, after reviewing the terms of all the agreements between
KnowledgeWare and Sterling, including the provisions for the Escrowed Shares,
has delivered its opinion to KnowledgeWare's Board of Directors that, as of the
date of its opinion, the exchange ratio was fair to KnowledgeWare's
stockholders from a financial point of view. The Board has approved the
proposed transaction and unanimously recommends that KnowledgeWare's
stockholders vote FOR its approval.
 
  The accompanying Proxy Statement/Prospectus describes in detail the terms of
the proposed Merger and related documents. It also contains pro forma financial
information and other information about the companies, including information
regarding the Sterling common stock to be issued in the Merger. You are urged
to read this information carefully.
 
  Whether or not you plan to attend the Special Meeting, you are urged to
complete, sign and promptly return the enclosed proxy card to ensure that your
shares will be voted at the meeting. Your vote on the proposed Merger is of
great importance. A postage-paid return envelope is enclosed for your
convenience.
 
                                      Sincerely,
 
                                      /s/ Francis A. Tarkenton
                                      Francis A. Tarkenton
                                      Chairman of the Board and Chief
                                       Executive Officer
<PAGE>
 
                              KNOWLEDGEWARE, INC.
                           3340 PEACHTREE ROAD, N.E.
                             ATLANTA, GEORGIA 30326
 
                   NOTICE OF SPECIAL MEETING OF STOCKHOLDERS
                          TO BE HELD NOVEMBER   , 1994
 
  NOTICE IS HEREBY GIVEN that a Special Meeting of Stockholders of
KnowledgeWare, Inc., a Georgia corporation ("KnowledgeWare"), will be held on
November   , 1994, at the Hotel Nikko, 3300 Peachtree Road, Atlanta, Georgia,
commencing at 10:00 a.m., local time, to consider and vote upon the following
matters described in the accompanying Proxy Statement/Prospectus:
 
  1. Approval and adoption of the Amended and Restated Agreement and Plan of
     Merger, dated as of August 31, 1994 (as amended, the "Merger
     Agreement"), among Sterling Software, Inc., a Delaware corporation
     ("Sterling"), SSI Corporation, a Georgia corporation and a recently
     organized wholly owned subsidiary of Sterling ("Merger Sub"), and
     KnowledgeWare, pursuant to which, among other things, (i) Merger Sub
     will be merged (the "Merger") with and into KnowledgeWare and
     KnowledgeWare will become a wholly owned subsidiary of Sterling and (ii)
     each outstanding share of common stock of KnowledgeWare (other than (a)
     shares owned by Sterling, Merger Sub or any other subsidiary of Sterling
     and (b) shares held in KnowledgeWare's treasury immediately prior to the
     effective time of the Merger) will be converted into the right to
     receive up to .1653 of a share of common stock of Sterling. Promptly
     after the Merger, KnowledgeWare common stockholders will be entitled to
     receive .1322 of a share of Sterling common stock for each share of
     KnowledgeWare common stock; the remaining 20% of the number of shares of
     Sterling common stock issuable upon effectiveness of the Merger will be
     placed in escrow (the "Escrowed Shares") pursuant to the terms of an
     escrow agreement (the "Escrow Agreement") and thereafter distributed to
     KnowledgeWare common stockholders only if and to the extent that such
     shares are not necessary to cover certain losses, claims, liabilities,
     judgments, costs and expenses that may be incurred by Sterling, Merger
     Sub or KnowledgeWare in connection with certain claims, litigation or
     other proceedings (including amounts paid in settlement) to which
     Sterling, Merger Sub or KnowledgeWare is or may become a party and with
     respect to which Sterling is entitled to indemnification. In the event
     that all of the Escrowed Shares are used to cover losses, claims,
     liabilities, judgments, costs or expenses incurred by KnowledgeWare,
     Merger Sub or Sterling, no Escrowed Shares will be distributed to the
     KnowledgeWare common stockholders. A copy of the Merger Agreement (which
     contains the form of Escrow Agreement) is attached as Appendix A to the
     accompanying Proxy Statement/Prospectus.
 
  2. If necessary, whether to adjourn the meeting for the purpose of
     soliciting additional proxies.
 
  3. The transaction of such other business as may properly come before the
     Special Meeting or any adjournment or postponement thereof.
 
  Only holders of record of common stock of KnowledgeWare at the close of
business on October 6, 1994 will be entitled to notice of, and to vote at, the
Special Meeting and any adjournment or postponement thereof. Whether or not you
plan to attend the meeting, please complete, date, sign and return the enclosed
proxy card promptly. A return envelope is enclosed for your convenience and
requires no postage for mailing in the United States.
 
                                      By Order of the Board of Directors,
 
                                      /s/ Richard M. Haddrill
                                      Richard M. Haddrill
                                      Executive Vice President and Secretary
 
Atlanta, Georgia
October   , 1994
 
                             YOUR VOTE IS IMPORTANT
 
   TO VOTE YOUR SHARES PLEASE COMPLETE, DATE AND SIGN THE ENCLOSED PROXY
         CARD AND MAIL IT PROMPTLY IN THE ENCLOSED RETURN ENVELOPE.
 
<PAGE>
 
 
                      STERLING SOFTWARE, INC. PROSPECTUS
 
                               ---------------
 
 
                             KNOWLEDGEWARE, INC.
 
                               PROXY STATEMENT
 
                               ---------------
 
  This Proxy Statement/Prospectus is being furnished to holders of common
stock, without par value ("KnowledgeWare Common Stock"), of KnowledgeWare,
Inc., a Georgia corporation ("KnowledgeWare"), in connection with the
solicitation of proxies by KnowledgeWare's Board of Directors for use at the
Special Meeting of KnowledgeWare stockholders (the "Special Meeting") to be
held on November   , 1994 at the Hotel Nikko, 3300 Peachtree Road, Atlanta,
Georgia, commencing at 10:00 a.m., local time, and at any adjournment or
postponement thereof. At the Special Meeting the stockholders will consider
and vote upon the following matters:
 
  1. Approval and adoption of the Amended and Restated Agreement and Plan of
     Merger, dated as of August 31, 1994 (as amended, the "Merger
     Agreement"), among Sterling Software, Inc., a Delaware corporation
     ("Sterling"), SSI Corporation, a Georgia corporation and a recently
     organized wholly owned subsidiary of Sterling ("Merger Sub"), and
     KnowledgeWare, pursuant to which, among other things, (i) Merger Sub
     will be merged with and into KnowledgeWare and KnowledgeWare will
     become a wholly owned subsidiary of Sterling (the "Merger") and (ii)
     each outstanding share of KnowledgeWare Common Stock (other than (a)
     shares owned by Sterling, Merger Sub or any other subsidiary of
     Sterling and (b) shares held in KnowledgeWare's treasury immediately
     prior to the effective time of the Merger) will be converted into the
     right to receive up to .1653 of a share of common stock, par value $.10
     per share ("Sterling Common Stock"), of Sterling. Promptly after the
     Merger, KnowledgeWare common stockholders will be entitled to receive
     .1322 of a share of Sterling Common Stock for each share of
     KnowledgeWare Common Stock; the remaining 20% of the number of shares
     of Sterling Common Stock issuable upon effectiveness of the Merger will
     be placed in escrow (the "Escrowed Shares") pursuant to the terms of an
     escrow agreement (the "Escrow Agreement") and thereafter distributed to
     KnowledgeWare common stockholders only if and to the extent that such
     shares are not necessary to cover certain losses, claims, liabilities,
     judgments, costs and expenses that may be incurred by Sterling, Merger
     Sub or KnowledgeWare in connection with certain claims, litigation or
     other proceedings (including amounts paid in settlement) to which
     Sterling, Merger Sub or KnowledgeWare is or may become a party and with
     respect to which Sterling is entitled to indemnification. IN THE EVENT
     THAT ALL OF THE ESCROWED SHARES ARE USED TO COVER LOSSES, CLAIMS,
     LIABILITIES, JUDGMENTS, COSTS OR EXPENSES INCURRED BY KNOWLEDGEWARE,
     MERGER SUB OR STERLING, NO ESCROWED SHARES WILL BE DISTRIBUTED TO THE
     KNOWLEDGEWARE COMMON STOCKHOLDERS. A copy of the Merger Agreement
     (which contains a form of Escrow Agreement) is attached as Appendix A
     to this Proxy Statement/Prospectus.
 
  2. If necessary, whether to adjourn the meeting for the purpose of
     soliciting additional proxies.
 
  3. The transaction of such other business as may properly come before the
     Special Meeting or any adjournment or postponement thereof.
 
  FOR CERTAIN FACTORS WHICH SHOULD BE CONSIDERED IN EVALUATING THE MERGER, SEE
"INVESTMENT CONSIDERATIONS."
 
  This Proxy Statement/Prospectus also constitutes the prospectus of Sterling
with respect to the issuance of up to 2,654,652 shares of Sterling Common
Stock that are issuable in connection with the proposed Merger. All
information contained in this Proxy Statement/Prospectus relating to Sterling
has been supplied by Sterling, and all information contained in this Proxy
Statement/Prospectus relating to KnowledgeWare has been supplied by
KnowledgeWare.
 
THE SECURITIES TO BE ISSUED PURSUANT TO THIS PROXY STATEMENT/PROSPECTUS HAVE
NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND EXCHANGE COMMISSION OR
ANY STATE SECURITIES COMMISSION NOR HAS THE SECURITIES AND EXCHANGE COMMISSION
OR ANY STATE SECURITIES COMMISSION PASSED UPON THE ACCURACY OR ADEQUACY OF THIS
PROXY STATEMENT/PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL
OFFENSE.
                               ---------------
 
  This Proxy Statement/Prospectus and the accompanying proxy card are first
being mailed to stockholders of KnowledgeWare on or about October   , 1994.
 
        The date of this Proxy Statement/Prospectus is October  , 1994.
<PAGE>
 
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                           PAGE
                                                                           ----
<S>                                                                        <C>
AVAILABLE INFORMATION.....................................................   2
INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE...........................   3
SUMMARY...................................................................   4
  The Companies...........................................................   4
  The Special Meeting.....................................................   5
  The Merger..............................................................   6
  The Stock Option Agreement..............................................  12
  The Stockholder Agreements..............................................  12
  The Escrow Agreement....................................................  12
  Recent Developments.....................................................  13
  Summary Historical and Pro Forma Financial Information..................  17
  Comparative Per Share Data..............................................  20
  Comparative Market Prices...............................................  20
INVESTMENT CONSIDERATIONS.................................................  22
  Integration of the Two Companies; Transaction Costs.....................  22
  Financial Condition of KnowledgeWare....................................  22
  Establishment of Escrow.................................................  23
  Certain Legal Proceedings...............................................  24
  Interests of Certain Affiliates of KnowledgeWare in the Merger..........  25
  Uncertainty of Federal Income Tax Consequences..........................  26
THE SPECIAL MEETING.......................................................  27
  General.................................................................  27
  Matters to be Considered at the Special Meeting.........................  27
  Board of Directors Recommendation.......................................  27
  Record Date; Voting at the Special Meeting..............................  27
  Voting and Revocation of Proxies........................................  28
THE MERGER................................................................  29
  General.................................................................  29
  Background of the Merger................................................  29
  Reasons for the Merger; Recommendation of the KnowledgeWare Board of Di-
   rectors................................................................  33
  Opinion of Financial Advisor............................................  35
  Interests of Certain Persons in the Merger..............................  41
  Accounting Treatment....................................................  43
  Certain Federal Income Tax Consequences.................................  43
  Regulatory Approval.....................................................  46
  Resale Restrictions; Registration Rights................................  47
  No Dissenters' Rights...................................................  47
THE MERGER AGREEMENT......................................................  47
  The Merger..............................................................  47
  Exchange Procedures.....................................................  49
  Representations and Warranties..........................................  50
  Certain Covenants.......................................................  50
  Indemnification of Sterling; Escrow.....................................  51
  No Solicitation of Transactions.........................................  51
  Benefit Plans...........................................................  52
  Governance..............................................................  52
  Indemnification of Directors and Officers of KnowledgeWare..............  52
  Conditions..............................................................  53
  Termination.............................................................  53
  Expenses................................................................  54
  Amendment and Waiver....................................................  54
THE STOCK OPTION AGREEMENT................................................  54
  The Option..............................................................  54
  Exercise of the Option..................................................  54
</TABLE>
 
                                       i
<PAGE>
 
<TABLE>
<CAPTION>
                                                                            PAGE
                                                                            ----
<S>                                                                         <C>
  Expiration of the Option.................................................  55
  Adjustments of Number of Shares Subject to Option........................  55
  Registration Rights......................................................  55
THE STOCKHOLDER AGREEMENTS.................................................  56
THE ESCROW AGREEMENT.......................................................  57
  General..................................................................  57
  Disbursement of Escrowed Shares..........................................  57
  Voting and Dividend Rights...............................................  58
  The Representative.......................................................  58
PRO FORMA COMBINED CONDENSED FINANCIAL INFORMATION.........................  58
CERTAIN INFORMATION REGARDING STERLING SOFTWARE............................  64
  General..................................................................  64
  Electronic Commerce Group................................................  65
  Enterprise Software Group................................................  66
  Federal Systems Group....................................................  67
  International Group......................................................  68
  Product Licenses.........................................................  68
  Product Support..........................................................  68
  Services.................................................................  68
  Product Development......................................................  68
  Sales and Marketing......................................................  69
  Other Information........................................................  69
  Merger Sub...............................................................  69
CERTAIN INFORMATION REGARDING KNOWLEDGEWARE................................  69
  General..................................................................  69
  Products.................................................................  71
  Acquisitions.............................................................  72
  Sales and Marketing......................................................  72
  Seasonality and Backlog..................................................  74
  Customer Support Services................................................  74
  Research and Development.................................................  74
  Competition..............................................................  75
  Product Protection.......................................................  75
  Employees................................................................  75
  Properties...............................................................  75
  Legal Proceedings........................................................  76
DESCRIPTION OF STERLING SOFTWARE CAPITAL STOCK.............................  77
  Description of Sterling Software Common Stock............................  77
  Description of Sterling Software Preferred Stock.........................  77
COMPARISON OF STOCKHOLDER RIGHTS...........................................  78
  Amendment of Charter and Bylaws..........................................  78
  Removal of Directors.....................................................  79
  Changes of Control.......................................................  79
  Dividends................................................................  81
  Indemnification of Directors and Officers................................  82
  Dissenters' Rights.......................................................  82
</TABLE>
 
 
                                       ii
<PAGE>
 
<TABLE>
<CAPTION>
                                                                            PAGE
                                                                            ----
<S>                                                                         <C>
EXPERTS....................................................................  83
STOCKHOLDER PROPOSALS......................................................  83
OTHER MATTERS..............................................................  84
LEGAL MATTERS..............................................................  84
TRADEMARK INFORMATION......................................................  84
</TABLE>
 
    APPENDICES
     Appendix A:Amended and Restated Agreement and Plan of Merger
     Appendix B:Fairness Opinion of Alex. Brown & Sons Incorporated
     Appendix C:Amended and Restated Stock Option Agreement
     Appendix D:Amended and Restated Form of Stockholder Agreement
 
                                      iii
<PAGE>
 
  NO PERSON HAS BEEN AUTHORIZED TO GIVE ANY INFORMATION OR TO MAKE ANY
REPRESENTATIONS OTHER THAN THOSE CONTAINED IN THIS PROXY STATEMENT/PROSPECTUS
IN CONNECTION WITH THE SOLICITATION OF PROXIES OR THE OFFERING OF SECURITIES
MADE HEREBY AND, IF GIVEN OR MADE, SUCH INFORMATION OR REPRESENTATION MUST NOT
BE RELIED UPON AS HAVING BEEN AUTHORIZED BY STERLING, KNOWLEDGEWARE OR ANY
OTHER PERSON. THIS PROXY STATEMENT/PROSPECTUS DOES NOT CONSTITUTE AN OFFER TO
SELL OR A SOLICITATION OF AN OFFER TO BUY ANY SECURITIES, OR THE SOLICITATION
OF A PROXY, IN ANY JURISDICTION TO OR FROM ANY PERSON TO WHOM IT IS NOT LAWFUL
TO MAKE ANY SUCH OFFER OR SOLICITATION IN SUCH JURISDICTION. NEITHER THE
DELIVERY OF THIS PROXY STATEMENT/PROSPECTUS NOR ANY DISTRIBUTION OF SECURITIES
HEREUNDER SHALL, UNDER ANY CIRCUMSTANCES, CREATE ANY IMPLICATION THAT THERE HAS
BEEN NO CHANGE IN THE AFFAIRS OF STERLING OR KNOWLEDGEWARE SINCE THE DATE
HEREOF OR THAT THE INFORMATION HEREIN IS CORRECT AS OF ANY TIME SUBSEQUENT TO
ITS DATE.
 
                             AVAILABLE INFORMATION
 
  Sterling and KnowledgeWare are each subject to the informational requirements
of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), and in
accordance therewith each files reports, proxy statements and other information
with the Securities and Exchange Commission (the "Commission"). The reports,
proxy statements and other information filed by Sterling and KnowledgeWare with
the Commission can be inspected and copied at the public reference facilities
maintained by the Commission at Judiciary Plaza, Room 1024, 450 Fifth Street,
N.W, Washington, D.C. 20549, and at the regional offices of the Commission at
75 Park Place, Room 1228, New York, New York 10007, and Northwestern Atrium
Center, 500 West Madison Street, Suite 1400, Chicago, Illinois 60621. The
Common Stock of Sterling is listed on the New York Stock Exchange (the "NYSE").
Reports, proxy statements and other information concerning Sterling can also be
inspected at the offices of the NYSE at 20 Broad Street, New York, New York
10005.
 
  Sterling has filed with the Commission a Registration Statement on Form S-4
(together with all amendments and exhibits thereto, the "Registration
Statement") under the Securities Act of 1933, as amended (the "Securities
Act"), with respect to the securities to be issued pursuant to the Merger
Agreement (as hereinafter defined). As permitted by the rules and regulations
of the Commission, this Proxy Statement/Prospectus does not contain all of the
information set forth in the Registration Statement. Copies of the Registration
Statement are available from the Commission upon payment of certain fees
prescribed by the Commission. Statements contained in this Proxy
Statement/Prospectus or in any document incorporated by reference in this Proxy
Statement/Prospectus as to the contents of any contract, opinion or other
document referred to herein are not necessarily complete. In each instance,
reference is hereby made to the copy of such contract or other document filed
as an exhibit to the Registration Statement or such other document and each
such statement is qualified in all respects by such reference.
 
  The terms "Sterling" and "KnowledgeWare" when used herein shall mean Sterling
Software, Inc. and KnowledgeWare, Inc., respectively, and their respective
subsidiaries and affiliates through which they conduct their business, unless
the context indicates otherwise.
 
                                       2
<PAGE>
 
                INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE
  The following documents filed with the Commission by Sterling and
KnowledgeWare are incorporated herein by reference and made a part hereof:
STERLING
 
 
 
      (i) Annual Report on Form 10-K (File No. 1-8465) for the year ended
  September 30, 1993, as amended by Form 10-K/A Amendment No. 1 filed January
  26, 1994 (the "Sterling 10-K");
 
     (ii) Quarterly Report on Form 10-Q (File No. 1-8465) for the quarter
  ended December 31, 1993;
 
    (iii) Quarterly Report on Form 10-Q (File No. 1-8465) for the quarter
  ended March 31, 1994, as amended by Form 10-Q/A Amendment No. 1 filed May
  16, 1994;
 
     (iv) Quarterly Report on Form 10-Q (File No. 1-8465) for the quarter
  ended June 30, 1994 (the "Sterling June 30, 1994 10-Q");
 
      (v) Current Report on Form 8-K (File No. 1-8465) filed November 16,
  1993;
 
     (vi) Current Report on Form 8-K (File No. 1-8465) filed August 2, 1994;
 
    (vii) Current Report on Form 8-K (File No. 1-8465) filed August 2, 1994;
 
   (viii) Current Report on Form 8-K (File No. 1-8465) filed September 2,
  1994;
 
    (ix) Proxy Statement for Sterling's Annual Meeting held on March 17,
  1994; and
 
      (x) Registration Statement on Form 8-A (File No. 0-108465), filed March
  7, 1990.
KNOWLEDGEWARE
 
 
    (i) Annual Report on Form 10-K (File No. 0-18213) for the year ended June
  30, 1994, as amended by Form 10-K/A Amendment No. 1 filed September 22,
  1994, Amendment No. 2 filed October 21, 1994 and Amendment No. 3 filed
  October 27, 1994 (the "KnowledgeWare 10-K");
 
     (ii) Current Report on Form 8-K (File No. 0-18213) filed July 6, 1994;
 
    (iii) Current Report on Form 8-K (File No. 0-18213) filed July 20, 1994;
 
    (iv) Current Report on Form 8-K (File No. 0-18213) filed August 4, 1994;
 
     (v) Current Report on Form 8-K (File No. 0-18213) filed September 22,
  1994;
 
    (vi) Current Report on Form 8-K (File No. 0-18213) filed October 11,
  1994;
 
    (vii) Quarterly Report on Form 10-Q (File No. 0-18213) for the quarter
  ended September 30, 1993 filed November  , 1993, as amended by Form 10-Q/A
  Amendment No. 1 filed      , 1994 and Amendment No. 2 filed October 27,
  1994;
 
    (viii) Quarterly Report on Form 10-Q (File No. 0-18213) for the quarter
  ended December 31, 1993 filed February  , 1994, as amended by Form 10-Q/A
  Amendment No. 1 filed October 27, 1994; and
 
    (ix) Quarterly Report on Form 10-Q (File No. 0-18213) for the quarter
  ended March 31, 1994 filed May  , 1994, as amended by Form 10-Q/A Amendment
  No. 1 filed October 27, 1994.
  All documents filed by Sterling or KnowledgeWare pursuant to Sections 13(a),
13(c), 14 and 15(d) of the Exchange Act subsequent to the date of this Proxy
Statement/Prospectus and prior to the date of the Special Meeting shall be
deemed to be incorporated by reference herein and to be a part hereof from the
date of filing thereof. Any statement contained herein or in a document
incorporated or deemed incorporated by reference herein shall be deemed to be
modified or superseded for all purposes of this Proxy Statement/Prospectus to
the extent that a statement contained herein or in any other subsequently
filed document which also is or is deemed to be incorporated by reference
herein modifies or supersedes such statement. Any such statement so modified
or superseded shall not be deemed, except as so modified or superseded, to
constitute a part of this Proxy Statement/Prospectus.
 
 
  This Proxy Statement/Prospectus incorporates documents by reference some of
which are delivered herewith (the Sterling 10-K, as amended, the Sterling June
30, 1994 10-Q and the KnowledgeWare 10-K, as amended) and some of which are
not presented herein or delivered herewith. Such documents which are not
delivered herewith (other than exhibits and schedules thereto, unless such
exhibits or schedules are specifically incorporated by reference into the
information that this Proxy Statement/Prospectus incorporates) are available
without charge to any person to whom a copy of this Proxy Statement/Prospectus
is delivered, upon the written or oral request of such person. Written or
telephonic requests for copies, in the case of documents relating to Sterling,
should be directed to Sterling Software, Inc., 8080 North Central Expressway,
Suite 1100, Dallas, Texas 75206, Attention: Jeannette P. Meier, Executive Vice
President, Secretary and General Counsel (telephone: (214) 891-8600), or, in
the case of documents relating to KnowledgeWare, directed to KnowledgeWare,
Inc., 3340 Peachtree Road, N.E., Atlanta, Georgia 30326, Attention: Rick W.
Gossett, Chief Financial Officer (telephone: (404) 231-8575). In order to
ensure timely delivery of the documents prior to the Special Meeting, any
request must be received by November    , 1994.
 
                                       3
<PAGE>
 
                                    SUMMARY
 
  The following is a summary of certain information contained elsewhere in this
Proxy Statement/Prospectus. Reference is made to, and this summary is qualified
in its entirety by, the more detailed information contained, or incorporated by
reference, in this Proxy Statement/Prospectus and the Appendices hereto.
Stockholders are urged to read this Proxy Statement/Prospectus and the
Appendices hereto in their entirety. Unless otherwise indicated, year-end
financial and other information referencing a particular year with respect to
Sterling is as of or for the fiscal year ended September 30, and with respect
to KnowledgeWare is as of or for the fiscal year ended June 30. For certain
factors which should be considered in evaluating the Merger, see "Investment
Considerations".
 
THE COMPANIES
 
 Sterling Software
 
  Sterling is a recognized worldwide supplier of software products and services
within the electronic commerce and enterprise software markets and also
provides technical professional services to certain sectors of the federal
government. Consistent with Sterling's decentralized operating style, each
major market is served by independently-operated business groups which consist
of divisions that focus on specific business niches within those markets.
 
  Sterling has steadily expanded its operations through internal growth and by
business and product acquisitions. In July 1993, Sterling completed the
acquisition of Systems Center, Inc. ("Systems Center") for approximately $156
million in a stock-for-stock transaction, and reorganized the combined company
into four business groups.
 
  .  The Electronic Commerce Group provides software and services to
     facilitate electronic commerce, defined by Sterling as the worldwide
     electronic interchange of business information. Product offerings
     include electronic data interchange ("EDI") software and services, data
     communications software and electronic payments software for financial
     institutions. Sterling is the leading EDI translation software vendor in
     North America.
 
  .  The Enterprise Software Group provides applications development and
     systems management software products for customers typically utilizing
     large IBM mainframe computers in conjunction with mid-range computers
     and networks of personal computers. Addressing the needs of corporations
     as they move to client/server computing environments, Sterling has
     expanded its market focus to include products that operate on a variety
     of computer platforms and operating systems.
 
  .  The Federal Systems Group provides technical professional services to
     the federal government under several multi-year contracts primarily in
     support of the National Aeronautics and Space Administration aerospace
     research projects and secure communications systems for the U.S.
     Department of Defense.
 
  .  The International Group, headquartered in London, is the exclusive
     channel to international markets for all Sterling products. The group
     operates through regional divisions representing Europe, Asia/Pacific,
     the Americas and other countries throughout the world.
 
  The principal executive offices of Sterling are located at 8080 North Central
Expressway, Suite 1100, Dallas, Texas 75206, and its telephone number is (214)
891-8600. See "Certain Information Regarding Sterling Software."
 
 
                                       4
<PAGE>
 
 KnowledgeWare
 
  KnowledgeWare designs, develops, markets and supports a variety of solutions
and services for the development of a broad range of business applications from
individual support systems to departmental and mission critical enterprise-wide
systems and applications. Through a combination of development, acquisitions
and strategic alliances/partnerships, KnowledgeWare offers technology in a
variety of tool categories including "I-CASE" (integrated computer-aided
software engineering) and visual application development tools for open,
heterogenous client/server, midrange and mainframe computing environments.
KnowledgeWare's revenues also include related consulting services, project
management, training and methodology.
 
  KnowledgeWare's product line includes the Application Development Workbench,
a comprehensive, I-CASE development solution; ObjectView, a visual development
tool for creating Windows-based client/server applications that access multiple
distributed databases; Flashpoint, a Windows-based tool for quickly creating
new graphical user interfaces for legacy applications, as well as integrating
data from a variety of applications at the desktop; Legacy Workbench, a
comprehensive set of tools that accelerate the maintenance, redesign and
migration of existing mainframe-based applications; MAXIM, an object-oriented
PC-based tool for business process reengineering; ClearAccess, a graphical tool
for end-user database queries and reports; and ClearManager, a client/server
management tool for monitoring, controlling and supporting data access
activities.
 
  KnowledgeWare markets its products to a wide range of developers and users
within financial, governmental, telecommunications, manufacturing, utility and
other organizations worldwide. KnowledgeWare product users may include
professional developers within information systems departments; casual
developers who have programming skills but are not employed as full-time
developers; power users who build applications without writing any code to
construct customer queries and reports as well as create and update databases;
and end users of applications and reports developed with KnowledgeWare
products.
 
  KnowledgeWare was incorporated in Michigan in 1979 as Database Design, Inc.
and the name was changed in 1985 to "KnowledgeWare, Inc." KnowledgeWare merged
with Atlanta-based Tarkenton Software, Inc. in 1986 and reincorporated in
Georgia in 1988. KnowledgeWare's principal executive offices are located at
3340 Peachtree Road, N.E., Atlanta, Georgia 30326, and its telephone number is
(404) 231-8575. See "Certain Information Regarding KnowledgeWare."
 
 SSI Corporation
 
  SSI Corporation ("Merger Sub") is a Georgia corporation recently organized by
Sterling solely for the purpose of effecting the Merger. The principal
executive offices of Merger Sub are located at 8080 North Central Expressway,
Suite 1100, Dallas, Texas 75206, and its telephone number is (214) 891-8600.
 
THE SPECIAL MEETING
 
  Time, Date and Place. The Special Meeting of Stockholders of KnowledgeWare
(the "Special Meeting") is scheduled to be held on November   , 1994, at the
Hotel Nikko, 3300 Peachtree Road, Atlanta, Georgia, commencing at 10:00 a.m.,
local time.
 
  Purposes of the Special Meeting. The purposes of the Special Meeting are to
consider and vote upon (i) a proposal to approve the Amended and Restated
Agreement and Plan of Merger, dated as of August 31, 1994 (as amended, the
"Merger Agreement"), among Sterling, Merger Sub and KnowledgeWare, (ii) if in
the discretion of management of KnowledgeWare it is necessary to adjourn the
Special Meeting for the purpose of soliciting additional proxies, a proposal to
adjourn the Special Meeting, and (iii) such other matters as may properly be
brought before the Special Meeting.
 
 
                                       5
<PAGE>
 
  Record Date; Shares Entitled to Vote. Only holders of record of shares of
common stock, without par value ("KnowledgeWare Common Stock"), at the close of
business on October 6, 1994, are entitled to notice of and to vote at the
Special Meeting. As of October 6, 1994, there were 14,571,888 shares of
KnowledgeWare Common Stock outstanding, held by approximately 542 holders of
record. The holders of KnowledgeWare Common Stock are entitled to cast one vote
per share on each matter to be acted upon or which may properly come before the
Special Meeting.
 
  Vote Required. The approval and adoption by the KnowledgeWare stockholders of
the Merger Agreement will require the affirmative vote of the holders of a
majority of the outstanding shares of KnowledgeWare Common Stock entitled to
vote at the Special Meeting as of the record date. The approval and adoption of
a motion to adjourn the Special Meeting to solicit additional proxies will
require the affirmative vote of a majority of shares represented in person or
by proxy at the Special Meeting. Certain directors, executive officers and/or
stockholders of KnowledgeWare, who as of August 31, 1994 beneficially owned in
the aggregate approximately 19.1% of the outstanding KnowledgeWare Common
Stock, have entered into agreements obligating them to vote in favor of the
approval and adoption of the Merger Agreement, and have granted to Sterling
irrevocable proxies to vote their shares in such manner in the event such
stockholders fail to vote as required. See "The Stockholder Agreements." In
addition, all other directors and executive officers of KnowledgeWare, who
beneficially own in the aggregate less than one percent of the outstanding
KnowledgeWare Common Stock, have indicated that they will vote all such shares
in favor of the approval and adoption of the Merger Agreement.
 
THE MERGER
 
  Conversion of Securities. Upon consummation of the transactions contemplated
by the Merger Agreement, (i) Merger Sub will be merged with and into
KnowledgeWare, which will be the surviving corporation and will become a wholly
owned subsidiary of Sterling (the "Merger") and (ii) each issued and
outstanding share of KnowledgeWare Common Stock (other than (a) shares owned by
Sterling, Merger Sub or any other subsidiary of Sterling and (b) shares held in
KnowledgeWare's treasury immediately prior to the effective time of the Merger)
will be converted into the right to receive up to .1653 of a share of common
stock, par value $.10 per share ("Sterling Common Stock"), of Sterling (the
"Exchange Ratio"). Promptly after the Merger, KnowledgeWare common stockholders
will be entitled to receive .1322 of a share of Sterling Common Stock for each
share of KnowledgeWare Common Stock (the "Net Exchange Ratio"); the remaining
20% of the number of shares of Sterling Common Stock issuable upon
effectiveness of the Merger will be placed in escrow (the "Escrowed Shares")
pursuant to the terms of an escrow agreement (the "Escrow Agreement") and
thereafter distributed to KnowledgeWare common stockholders only if and to the
extent that such shares are not necessary to cover certain losses, claims,
liabilities, judgments, costs and expenses that may be incurred by Sterling,
Merger Sub or KnowledgeWare in connection with any pending or threatened
litigation, action, claim, proceeding, dispute or investigation ("Action")
(including amounts paid in settlement) to which Sterling, Merger Sub or
KnowledgeWare is or may become a party and with respect to which Sterling is
entitled to indemnification. Sterling is entitled to indemnification concerning
certain Actions pending as of the date of the Merger Agreement or thereafter
arising, including Actions arising out of violations or alleged violations of
securities laws but excluding Actions arising out of ordinary course of
business transactions and certain other Actions. See "The Merger Agreement-
Indemnification of Sterling; Escrow." Since August 30, 1994, a number of
Actions have been filed against KnowledgeWare and certain of its officers
alleging violations of securities laws. Losses, claims, liabilities, judgments,
costs or expenses incurred by KnowledgeWare, Sterling or Merger Sub in
connection with these Actions (including amounts paid in settlement) will
result in claims for indemnification to be satisfied from the Escrowed Shares.
In the event that all of the Escrowed Shares are used to cover losses, claims,
liabilities, judgments, costs or expenses incurred by KnowledgeWare, Merger Sub
or Sterling, no Escrowed Shares will be distributed to the KnowledgeWare
stockholders. See "Summary--Recent Developments," "Investment Considerations--
 
                                       6
<PAGE>
 
Establishment of Escrow," "Investment Considerations--Certain Legal
Proceedings," "The Merger Agreement--Indemnification of Sterling; Escrow" and
"The Escrow Agreement." Fractional shares of Sterling Common Stock will not be
issued in connection with the Merger. A KnowledgeWare stockholder otherwise
entitled to a fractional share will be entitled to receive only a cash payment
in lieu of such fractional share in an amount representing such holder's
proportionate interest in the net proceeds of the sale by the exchange agent
for the Merger on behalf of all of such holders of fractional shares of
Sterling Common Stock as described under "The Merger Agreement-- Exchange
Procedures." In addition, the options outstanding under the KnowledgeWare Stock
Option Plans (as defined in "The Merger--Interests of Certain Persons in the
Merger") and KnowledgeWare's outstanding warrants to purchase an aggregate of
500,000 shares of KnowledgeWare Common Stock (each a "Warrant" and collectively
the "Warrants") will be assumed by Sterling; provided that (a) each such option
or Warrant shall become exercisable for that whole number of shares of Sterling
Common Stock (to the nearer whole share) equal to the product of the number of
shares of KnowledgeWare Common Stock issuable upon exercise of such option or
Warrant immediately prior to the Effective Time times the Exchange Ratio and
(b) the exercise price of such option or Warrant shall become equal to the
quotient given by dividing the exercise price of such option or Warrant in
effect immediately prior to the Effective Time by the Exchange Ratio.
 
  Recommendation of the KnowledgeWare Board of Directors. The Board of
Directors of KnowledgeWare has unanimously approved the Merger Agreement and
unanimously recommends a vote FOR approval and adoption of the Merger Agreement
by the stockholders of KnowledgeWare and FOR the adjournment of the meeting to
solicit additional proxies, if necessary. The Board of Directors of
KnowledgeWare believes that the terms of the Merger Agreement are fair to and
in the best interests of KnowledgeWare and its stockholders. In making its
recommendation, the Board has taken into account the possibility that none of
the Escrowed Shares may be distributed to the KnowledgeWare stockholders and
that the Merger may not qualify as a tax free reorganization under the Internal
Revenue Code of 1986, as amended (the "Code").
 
  The Boards of Sterling and KnowledgeWare believe that the proposed Merger
represents an opportunity to create one of the leading software and services
companies in the world, which will be able to provide its customers with a
broad range of products and excellent customer support and assist their
movement toward enterprise-wide computing. Specifically, the Boards of Sterling
and KnowledgeWare believe that the combined company will have a greatly
expanded presence in the visual application software and services market,
including integrated computer-aided software engineering and application
development tools and products for client/server, midrange and mainframe
computing environments. Additionally, Sterling will continue to be a leading
provider of electronic commerce software and services in North America, to
provide a broad offering of enterprise-wide systems management software tools
and to have a strong presence in the complex federal systems market. The
combined company is expected to be a leading vendor of application development
tools, and will have a substantial worldwide customer base, a broader global
distribution network, a work force of approximately 3,500 skilled employees and
an expected high level of recurring revenue, all of which Sterling and
KnowledgeWare believe will position the combined company for significant future
growth.
 
  Additionally, the Board of KnowledgeWare believes that its stockholders,
customers and employees will benefit from the greater financial strength of the
combined company and that the transaction will provide KnowledgeWare's
stockholders with greater investment liquidity.
 
  For a discussion of the factors considered by the Boards of Directors in
reaching their decisions, see "The Merger--Reasons for the Merger;
Recommendation of the KnowledgeWare Board of Directors."
 
  Opinion of Financial Advisor. Alex. Brown & Sons Incorporated ("Alex.
Brown"), KnowledgeWare's financial advisor, after reviewing the terms of all of
the agreements between KnowledgeWare and Sterling,
 
                                       7
<PAGE>
 
including the Escrow Agreement, has delivered its written opinion dated August
31, 1994, to KnowledgeWare's Board of Directors to the effect that, as of the
date of its opinion, the Exchange Ratio was fair to the KnowledgeWare common
stockholders from a financial point of view. For the purposes of rendering its
opinion, Alex. Brown considered that none of the Escrowed Shares may ever be
distributed to the KnowledgeWare stockholders. Alex. Brown's opinion is not
contingent upon the qualification of the Merger as a tax free reorganization
under the Code.
 
  A copy of the opinion of Alex. Brown, which sets forth the assumptions made,
matters considered and limits of its review, is attached to this Proxy
Statement/Prospectus as Appendix B. See "The Merger--Opinion of Financial
Advisor."
 
  Interests of Certain Persons in the Merger. Sterling has agreed in the Merger
Agreement to assume all outstanding options granted under the KnowledgeWare
Stock Option Plans. As of October 6, 1994 there were options outstanding to
purchase an aggregate of 1,545,202 shares of KnowledgeWare Common Stock at a
weighted average exercise price of $9.64 per share. Following the Merger, no
new options will be granted under the KnowledgeWare Stock Option Plans.
 
  Sterling has agreed that all rights to indemnification and advancement of
expenses existing in favor of the current and former directors and officers of
KnowledgeWare, to the extent provided under KnowledgeWare's Articles of
Incorporation, Bylaws and indemnification agreements as of the date of the
Merger Agreement, shall survive for at least six years following the Merger,
and Sterling has agreed to indemnify and advance expenses to such persons to
the full extent as would be required of or permitted by KnowledgeWare. In
addition, to the extent available, Sterling has agreed to cause KnowledgeWare
to maintain, for three years following the Merger, KnowledgeWare's current
directors' and officers' liability insurance, or comparable insurance, with
respect to matters occurring prior to the Merger; provided that in no event
will Sterling or KnowledgeWare be required to expend more than $500,000 in the
aggregate to procure or maintain such insurance, and Sterling and KnowledgeWare
will only be required to obtain as much comparable insurance as is available
for an aggregate expenditure of $500,000. KnowledgeWare has received a binder
for a one year directors' and officers' liability insurance policy with an
aggregate limit comparable to that under KnowledgeWare's prior policy. If
KnowledgeWare is acquired by Sterling during the policy term, the policy
converts into a three year "run-off" policy. The premium for this policy is
$600,000. Sterling and KnowledgeWare have agreed that the payment of such
premium by KnowledgeWare shall satisfy Sterling's obligation to maintain or
procure such liability insurance.
 
  Following the Effective Time, Sterling will enter into a three year
Consultation Agreement with Francis A. Tarkenton, the Chairman of the Board and
Chief Executive Officer of KnowledgeWare, pursuant to which he will be
compensated by Sterling at the rate of $300,000 per year plus the reimbursement
of certain expenses. In addition, following the Effective Time, Mr. Tarkenton
will be added to the Sterling Board of Directors. As a member of the Sterling
board, Mr. Tarkenton will be entitled to Sterling's customary outside
directors' fees, currently $22,500 per annum and $2,500 for each meeting
attended.
 
  Sterling has acquired by assignment all of the interest and right of IBM
Credit Corporation ("IBM Credit") under that certain secured Revolving Loan and
Security Agreement with KnowledgeWare (the "Loan Agreement") by paying to IBM
Credit approximately $15.1 million, which was equal to all amounts owed
thereunder by KnowledgeWare. Concurrently, Sterling and KnowledgeWare modified
the terms of the Loan Agreement, among other things, to (i) increase the term
loan portion of the facility from $2.7 million to $6 million and fix the
revolving portion of the facility at $16 million, (ii) reformulate the
borrowing base computation to increase the borrowing base capacity based on
KnowledgeWare's eligible accounts receivable and (iii) modify certain covenants
(as amended from time to time, the "Amended Loan Agreement"). As an inducement
to Sterling's entry into the Amended Loan Agreement, KnowledgeWare agreed to
issue to Sterling warrants to purchase 70,250 shares of KnowledgeWare Common
Stock for each $1,000,000 currently outstanding or subsequently advanced under
the loan. The warrants will be immediately exercisable, expire
 
                                       8
<PAGE>
 
five years from their date of issuance and the exercise price will be equal to
the market price of KnowledgeWare Common Stock as of the business day preceding
the date of the warrants' issuance. As of October 25, 1994, KnowledgeWare had
issued to Sterling warrants to purchase 1,405,000 shares of KnowledgeWare
Common Stock at a weighted average exercise price of $4.43 per share. As of
October 25, 1994, approximately $4.9 million in additional funds had been
advanced by Sterling to KnowledgeWare since Sterling acquired IBM Credit's
interest in the Loan Agreement. KnowledgeWare used the proceeds from the Loan
Agreement with IBM Credit to pay off an existing line of credit and for working
capital and to finance acquisitions, and used the advances from Sterling for
working capital. Sterling's entry into the Amended Loan Agreement was not a
condition to the parties' entering into the Merger Agreement. On October 25,
1994, Sterling and KnowledgeWare amended the Amended Loan Agreement to increase
the revolving portion of the facility to $22 million and agreed to waive the
borrowing base requirements with respect to borrowings of up to $16 million
under the revolving portion of the facility. Sterling expects that it likely
will grant additional waivers with respect to the borrowing base requirements
if KnowledgeWare needs additional cash to fund operations prior to the
consummation of the Merger. See "The Merger--Interests of Certain Persons in
the Merger."
 
  Sterling has agreed to file a registration statement on behalf of certain
affiliates of KnowledgeWare with respect to the sale by such affiliates from
time to time of Sterling Common Stock received by them pursuant to the Merger.
 
  See "Investment Considerations--Interests of Certain Affiliates of
KnowledgeWare in the Merger," "The Merger--Interests of Certain Persons in the
Merger," "The Merger Agreement--Resale Restrictions; Registration Rights," "The
Merger Agreement--Benefit Plans," "The Merger Agreement--Indemnification of
Directors and Officers of KnowledgeWare" and "The Stockholder Agreements."
 
  Indemnification of Sterling; Escrow. The Merger Agreement provides that
Sterling will be indemnified, solely from the Escrowed Shares, for any losses,
claims, liabilities, judgments, costs and expenses, including attorneys' fees,
incurred by Sterling, KnowledgeWare or any of their subsidiaries in connection
with any pending or threatened Actions from or after the date of the Merger
Agreement, including any such Actions arising out of violations or alleged
violations of securities laws but excluding any Actions arising out of ordinary
course of business transactions, Actions brought by current or former employees
with respect to their employment or termination thereof and certain other
Actions. See "Summary--The Escrow Agreement," "The Merger Agreement--
Indemnification of Sterling; Escrow" and "The Escrow Agreement." Since August
30, 1994, a number of Actions alleging violations of securities laws have been
filed against KnowledgeWare and certain of its officers. Losses, claims,
liabilities, judgments, costs or expenses (including amounts paid in
settlement) of KnowledgeWare, Sterling or Merger Sub resulting from these
Actions (which are described in "Summary--Recent Developments" below) will
result in claims for indemnification to be satisfied from the Escrowed Shares.
As of October 26, 1994, KnowledgeWare estimates that approximately $55,000 of
costs and expenses have been incurred since August 31, 1994 with respect to
such Actions. See "Summary--Recent Developments," "The Merger Agreement--
Indemnification of Sterling; Escrow," "The Escrow Agreement" and "Certain
Information Regarding KnowledgeWare--Legal Proceedings." Neither KnowledgeWare
nor Sterling is able to quantify the amount of the losses, claims, liabilities,
judgments, costs or expenses likely to be paid from the Escrowed Shares because
such Actions have only recently been filed, discovery has not commenced and
KnowledgeWare and its advisors cannot estimate the loss, if any, that will
result from the ultimate resolution of such Actions.
 
  Conditions to the Merger. The obligations of Sterling and KnowledgeWare to
consummate the Merger are subject to the satisfaction of certain conditions,
including obtaining the requisite stockholder approval, the absence of any
injunction prohibiting consummation of the Merger, and the obtaining of certain
regulatory approvals. Sterling's obligation to effect the Merger is also
subject to the condition that each party shall have received the opinion of its
tax counsel that the Merger will be treated for federal income tax purposes as
a reorganization within the meaning of Section 368(a) of the Code, and that
KnowledgeWare, Sterling and Merger Sub will each be a party to that
reorganization within the meaning of Section 368(b) of the Code. The Merger
Agreement may be amended or modified by the written agreement of Sterling,
KnowledgeWare and Merger Sub, and any party to the Merger Agreement may waive
any of the conditions to its obligation to effect the Merger. Neither Sterling,
Merger Sub nor KnowledgeWare has any current
 
                                       9
<PAGE>
 
intention of waiving any condition or amending or modifying any provision of
the Merger Agreement. See "The Merger--Certain Federal Income Tax
Consequences," "The Merger--Regulatory Approval" and "The Merger Agreement--
Conditions."
 
  Effective Time of the Merger. The Merger will become effective upon the
filing of a Certificate of Merger with the Secretary of State of the State of
Georgia (the "Effective Time"), which will be filed as promptly as practicable
after KnowledgeWare stockholder approval has been obtained and all other
conditions to the Merger have been satisfied or waived.
 
  Exchange of KnowledgeWare Stock Certificates. Upon consummation of the
Merger, each holder of a certificate or certificates representing shares of
KnowledgeWare Common Stock ("Certificates") outstanding immediately prior to
the Merger, upon the surrender thereof (duly endorsed, if required) to The
First National Bank of Boston, N.A. (the "Exchange Agent"), will be entitled to
receive a certificate or certificates representing the number of whole shares
of Sterling Common Stock into which such shares of KnowledgeWare Common Stock
will have been automatically converted as a result of the Merger, subject to
the withholding of the Escrowed Shares. See "Summary--The Merger," "The
Merger--Indemnification of Sterling; Escrow" and "The Escrow Agreement." The
Exchange Agent will mail a letter of transmittal with instructions to all
holders of record of KnowledgeWare Common Stock as of the Effective Time for
use in surrendering their Certificates in exchange for certificates
representing shares of Sterling Common Stock. Certificates should not be
surrendered until the letter of transmittal and instructions are received. See
"The Merger Agreement--Exchange Procedures."
 
  Accounting Treatment. The Merger is expected to be accounted for using the
purchase method of accounting. See "The Merger--Accounting Treatment."
 
  Certain Federal Income Tax Consequences. The parties to the Merger have not
and do not intend to seek a ruling from the Internal Revenue Service (the
"IRS") as to the U.S. federal income tax consequences of the Merger. Instead,
Sterling has obtained the opinion of its counsel, Jackson & Walker, L.L.P.
("Jackson & Walker"), and KnowledgeWare has obtained the opinion of its
counsel, Hicks, Maloof & Campbell, A Professional Corporation ("Hicks, Maloof &
Campbell"), as to certain of the expected U.S. federal income tax consequences
of the Merger, copies of which are attached as exhibits to the Registration
Statement (the "Opinions").
 
  Subject to the conditions, qualifications and assumptions contained herein
and in its Opinion, counsel for Sterling has opined that, though it is not free
from doubt, it is more likely than not that (i) the Merger will constitute a
reorganization within the meaning of Section 368(a) of the Code; (ii) Sterling,
Merger Sub and KnowledgeWare will each be a party to the reorganization within
the meaning of Section 368(b) of the Code; and (iii) no gain or loss will be
recognized by Sterling or Merger Sub as a result of the Merger.
 
  Subject to the conditions, qualifications and assumptions contained herein
and in its Opinion, counsel for KnowledgeWare has opined that, though it is not
free from doubt, it is more likely than not that (i) the Merger will constitute
a reorganization within the meaning of Section 368(a) of the Code; (ii)
Sterling, Merger Sub and KnowledgeWare will each be a party to the
reorganization within the meaning of Section 368(b) of the Code; (iii)
KnowledgeWare will recognize no gain or loss as a result of the Merger; (iv)
KnowledgeWare stockholders will recognize no gain or loss upon receipt of
Sterling Common Stock (including the Escrowed Shares) in exchange for their
KnowledgeWare Common Stock in the Merger (except with respect to cash received
in lieu of fractional shares and, as further discussed below, except with
respect to gain or loss recognized upon the return to, or sale on behalf of,
Sterling of any Escrowed Shares pursuant to the Escrow Agreement); (v) the tax
basis of the Sterling Common Stock (including the Escrowed Shares) received by
KnowledgeWare stockholders in the Merger will be the same as the adjusted tax
basis of the KnowledgeWare Common Stock surrendered in exchange therefor
(reduced by any amount allocable to fractional share interests for which cash
is received); (vi) the holding period of the Sterling Common Stock (including
the
 
                                       10
<PAGE>
 
Escrowed Shares) received by the KnowledgeWare stockholders in the Merger will
include the holding period of the KnowledgeWare Common Stock surrendered in
exchange therefor; and (vii) KnowledgeWare stockholders who receive cash in
lieu of fractional share interests of Sterling Common Stock in connection with
the Merger will generally, depending on each stockholder's particular
circumstances, recognize a capital gain or loss equal to the difference between
the amount of cash received therefor and the stockholder's adjusted tax basis
in the fractional share interest (which gain or loss will constitute long-term
capital gain or loss if the fractional share interest has been held for more
than one year at the Effective Time). Each KnowledgeWare stockholder will
recognize gain or loss upon return to, or sale on behalf of, Sterling of any
Escrowed Shares in an amount equal to the difference between the then value of
such Escrowed Shares and the KnowledgeWare stockholder's adjusted tax basis in
such shares. KnowledgeWare stockholders generally will not be entitled to claim
a loss based upon the value of the shares returned to, or sold on behalf of,
Sterling. Instead, the adjusted tax basis in their remaining shares of Sterling
Common Stock will be increased by the then value of the shares returned or
sold. Notwithstanding the foregoing, although no authorities directly so hold,
a KnowledgeWare stockholder who has previously disposed of all such remaining
shares should recognize a capital loss equal to the value of the Escrowed
Shares returned to, or sold on behalf of Sterling. Dividends on Escrowed
Shares, which, pursuant to the Escrow Agreement are required to be distributed
to the KnowledgeWare stockholders, will generally be taxable to them as
ordinary income.
 
  The Opinions of Jackson & Walker and Hicks, Maloof & Campbell are based on
the Code, the Income Tax Regulations promulgated thereunder (the "Treasury
Regulations"), administrative rulings and pronouncements of the IRS and
judicial decisions, all as of the date of the Opinions and all of which are
subject to change, prospectively or retroactively. KNOWLEDGEWARE STOCKHOLDERS
ARE URGED TO CONSULT THEIR OWN TAX ADVISORS AS TO THE SPECIFIC TAX CONSEQUENCES
TO THEM OF THE MERGER, INCLUDING THE APPLICABILITY AND EFFECT OF FEDERAL,
STATE, LOCAL AND OTHER TAX LAWS. See "Investment Considerations--Uncertainty of
Federal Income Tax Consequences," "The Merger--Certain Federal Income Tax
Consequences," "The Merger Agreement--Indemnification of Sterling; Escrow," and
"The Merger Agreement--Conditions."
 
  Regulatory Approval. The consummation of the Merger is subject to the
expiration or termination of the waiting period under the Hart-Scott-Rodino
Antitrust Improvements Act of 1976, as amended (the "HSR Act"). Early
termination of the waiting period was granted on October 4, 1994. See "The
Merger--Regulatory Approval."
 
  Resale Restrictions; Registration Rights. All shares of Sterling Common Stock
received by KnowledgeWare stockholders in the Merger (including Escrowed Shares
if and when distributed to KnowledgeWare stockholders) will be freely
transferable, except that shares of Sterling Common Stock received by persons
who are deemed to be "affiliates" (as such term is defined under the Securities
Act) of KnowledgeWare prior to the Merger may be resold by them only in certain
permitted circumstances. An "affiliate" generally includes individuals or
entities that control, are controlled by, or are under common control with,
another party and may include certain officers and directors of such party as
well as principal stockholders of such party. Sterling has agreed to file a
registration statement under the Securities Act to permit the sale by
KnowledgeWare's affiliates of the shares of Sterling Common Stock to be
received by them in the Merger at such time or times as they may choose free of
the restrictions imposed by the Securities Act. See "The Merger--Resale
Restrictions; Registration Rights."
 
  No Dissenters' Rights. Stockholders of KnowledgeWare will not have any
dissenters' rights in connection with, or as a result of, the matters to be
acted upon at the Special Meeting but will have any rights available to them
under applicable law. See "The Merger--No Dissenters' Rights."
 
  Termination. The Merger Agreement may be terminated and the Merger may be
abandoned at any time prior to the Effective Time, before or after the approval
by the stockholders of KnowledgeWare: (a) by the mutual consent of
KnowledgeWare, Sterling and Merger Sub; (b) by either Sterling or KnowledgeWare
 
                                       11
<PAGE>
 
if (i) the Merger shall not have been consummated by January 31, 1995, provided
that the terminating party shall not have breached in any material respect its
obligations under the Merger Agreement in any manner that shall have
proximately contributed to the failure so to consummate the Merger or (ii) the
approval of the Merger Agreement by KnowledgeWare's stockholders shall not have
been obtained; (c) by KnowledgeWare, if (i) the Board of Directors of Sterling
shall have withdrawn or modified in a manner adverse to KnowledgeWare its
approval or recommendation of the Merger in accordance with the terms of the
Merger Agreement, (ii) the average closing price for Sterling Common Stock on
the NYSE for five consecutive business days shall be $22.00 or less, or (iii)
there has been a material breach by Sterling or Merger Sub of any
representation, warranty, covenant or agreement contained in the Merger
Agreement or the Stock Option Agreement (as hereinafter defined) which is not
curable or, if curable, is not cured within 30 days after written notice of
such breach; or (d) by Sterling, if (i) the Board of Directors of KnowledgeWare
shall have withdrawn or modified in a manner adverse to Sterling its approval
or recommendation of the Merger in accordance with the terms of the Merger
Agreement or shall have recommended to stockholders of KnowledgeWare an
Acquisition Proposal (as defined in "The Merger Agreement--No Solicitation of
Transactions"), (ii) any person shall have made an Acquisition Proposal for
KnowledgeWare and certain conditions cannot be or are not satisfied on or prior
to January 31, 1995, or (iii) there has been a material breach by KnowledgeWare
of any representation, warranty, covenant or agreement contained in the Merger
Agreement or the Stock Option Agreement which is not curable or, if curable, is
not cured within 30 days after written notice of such breach.
 
  In the event that any person shall have made an Acquisition Proposal for
KnowledgeWare and thereafter the Merger Agreement is terminated by either party
(other than pursuant to the breach of the Merger Agreement by Sterling), then
KnowledgeWare, if requested by Sterling, shall pay Sterling a fee of $2,900,000
subject to certain conditions. See "The Merger Agreement--Termination."
 
THE STOCK OPTION AGREEMENT
 
  Sterling and KnowledgeWare have entered into an Amended and Restated Stock
Option Agreement dated as of August 31, 1994 (the "Stock Option Agreement"),
pursuant to which KnowledgeWare granted to Sterling an irrevocable option (the
"Option"), exercisable only if the Merger Agreement has been terminated and
only upon the occurrence of certain "Exercise Events" described in "The Stock
Option Agreement--Exercise of the Option," to purchase up to 1,200,000 shares
of KnowledgeWare Common Stock at an exercise price of $5.00 per share. A copy
of the Stock Option Agreement is attached hereto as Appendix C. See "The Stock
Option Agreement."
 
THE STOCKHOLDER AGREEMENTS
 
  Certain directors, executive officers and/or stockholders of KnowledgeWare
have entered into Amended and Restated Stockholder Agreements (the "Stockholder
Agreements") with Sterling pursuant to which each such stockholder has, among
other things, agreed to vote for approval of the Merger Agreement and has
granted to Sterling an irrevocable proxy to vote his or its shares in such
manner in the event such stockholder fails to vote as agreed. As of August 31,
1994, such stockholders of KnowledgeWare beneficially owned in the aggregate
approximately 19.1% of the outstanding shares of KnowledgeWare Common Stock. A
copy of the form of Stockholder Agreement is attached hereto as Appendix D. See
"The Stockholder Agreements."
 
THE ESCROW AGREEMENT
 
  At the closing of the Merger, Sterling will enter into an Escrow Agreement
with a representative (the "Representative") of the holders of KnowledgeWare
Common Stock as of the Effective Time, to be mutually agreed upon by
KnowledgeWare and Sterling, and a third party escrow agent (the "Escrow
Agent"), which
 
                                       12
<PAGE>
 
is expected to be The First National Bank of Boston, N.A., pursuant to which
the Escrowed Shares will be held by the Escrow Agent on behalf of the holders
of KnowledgeWare Common Stock as of the Effective Time. In general, Sterling
will be entitled to make claims for indemnification against the Escrowed Shares
at any time up to the second anniversary of the Effective Time, subject to the
right of the Representative to object to Sterling's claims. In addition,
Sterling, within 30 days prior to the second anniversary of the Effective Time,
may give notice to the Escrow Agent of certain contingent claims that have not
at the time given rise to indemnifiable damages, together with a good faith
reasonable estimate by Sterling of its maximum indemnifiable damages expected
with respect to such claims. On the second anniversary of the Effective Time,
any Escrowed Shares not subject to a claim made by Sterling, including a notice
of contingent claim, will be disbursed to the holders of KnowledgeWare Common
Stock as of the Effective Time. With respect to Escrowed Shares subject to a
notice of contingent claim, any Escrowed Shares remaining subject to the Escrow
Agreement on the fourth anniversary of the Effective Time and not then the
subject of litigation will be disbursed to the holders of KnowledgeWare Common
Stock as of the Effective Time. Any disbursement to the holders of
KnowledgeWare Common Stock as of the Effective Time will be made in proportion
to their relative holdings of KnowledgeWare Common Stock as of the Effective
Time. NO ASSURANCE CAN BE GIVEN THAT ANY ESCROWED SHARES WILL BE AVAILABLE FOR
DISBURSEMENT TO THE HOLDERS OF KNOWLEDGEWARE COMMON STOCK. Each KnowledgeWare
common stockholder will recognize gain or loss upon return to, or sale on
behalf of, Sterling of any Escrowed Shares in an amount equal to the difference
between the then value of such Escrowed Shares and the KnowledgeWare common
stockholder's adjusted tax basis in such shares. KnowledgeWare common
stockholders generally will not be entitled to claim a loss based upon the
value of the shares returned to, or sold on behalf of, Sterling. Instead, the
adjusted tax basis in their remaining shares of Sterling Common Stock will be
increased by the then value of the shares returned or sold. A copy of the
Escrow Agreement is included as Exhibit 4.4 to the Merger Agreement attached
hereto as Appendix A. See "Investment Considerations--Establishment of Escrow,"
"The Merger--Certain Federal Income Tax Consequences," "The Merger Agreement--
Indemnification of Sterling; Escrow" and "The Escrow Agreement." Since August
30, 1994, a number of Actions have been filed against KnowledgeWare alleging
violations of securities laws. If these Actions result in losses, claims,
liabilities, judgments, costs or expenses (including amounts paid in
settlement) to KnowledgeWare, Sterling or Merger Sub, such losses, claims,
liabilities, judgments, costs or expenses (including amounts paid in
settlement) will result in claims for indemnification to be satisfied from the
Escrowed Shares. See "Summary--Recent Developments," "Investment
Considerations--Certain Legal Proceedings," "The Merger Agreement--
Indemnification of Sterling; Escrow," and "Certain Information Regarding
KnowledgeWare--Legal Proceedings."
 
RECENT DEVELOPMENTS
 
  Fiscal 1994 Financial Results of Operations. On September 1, 1994,
KnowledgeWare announced that it had incurred a net loss for the fiscal year
ended June 30, 1994 ("fiscal 1994") of $19,030,000 or $1.34 per share.
KnowledgeWare attributes the loss to increased marketing and headcount related
expenses in expectation of significantly increased product license revenues
which were not realized.
 
  In early fiscal 1994, KnowledgeWare initiated a business plan to market its
products through indirect distribution channels, which included third party
resellers in both the commercial and government markets. Based on the
successful receivable collection experience of KnowledgeWare with respect to
end user customers, KnowledgeWare did not anticipate significant collection
difficulties from its newly implemented reseller program and, accordingly, did
not implement specific credit procedures for the program. As days sales in
receivables increased during the course of fiscal 1994, KnowledgeWare increased
its allowance for doubtful accounts to cover its estimate of reseller
receivable exposure. In the course of the 1994 year-end closing process,
KnowledgeWare retained a collection attorney to assist it in connection with
collection of reseller receivables. During such process, certain resellers
asserted that they either could not or were not
 
                                       13
<PAGE>
 
required to pay KnowledgeWare until they had consummated sales to end users and
received payments for the products. After careful analysis of these
receivables, KnowledgeWare modified its accounting policy for reseller license
revenue recognition to more accurately reflect its collection experience from
the third party reseller program, retroactive to the beginning of fiscal 1994.
The modification of accounting policy has also been applied to transactions
with federal government integrators where KnowledgeWare fulfills a product
order from the integrator rather than participating as a subcontractor to the
government agency.
 
  KnowledgeWare's modified revenue recognition policy for sales to resellers
provides for (i) revenue recognition upon the earlier of receipt of cash from
the reseller or shipment to an end user and (ii) the establishment of a
reasonable basis for estimating the degree of collectibility of the receivable.
Such reasonable basis is based upon review of transaction-specific facts and
circumstances, including payment history with the reseller, the reseller's
credit rating, the terms of the transactions between the reseller and its end
user, possible issues related to the end user's successful implementation of
the product and other facts pertinent to the transaction. Such procedures were
used as the basis for concluding whether collection was probable during the
1994 audit. The policy modification was implemented to correct reseller revenue
recognition retroactive to the beginning of fiscal 1994. As a result,
previously reported net income for the first quarter of fiscal 1994 decreased
from $1,566,000, or $.12 per share, to $1,382,000, or $.10 per share; for the
second quarter of fiscal 1994 from $2,082,000, or $.15 per share, to $278,000,
or $.02 per share; and for the third quarter of fiscal 1994 from $807,000, or
$.06 per share, to a loss of $5,278,000, or $.36 per share. Sales through
KnowledgeWare's reseller program, after restatement, totalled approximately
$2,263,000 in fiscal 1994.
 
  Certain Legal Proceedings. On December 18, 1991, a complaint was filed in the
United States District Court for the Northern District of Georgia, Atlanta
Division which consolidated and amended several class action lawsuits
previously filed against KnowledgeWare in October 1991. This action, styled In
re: KnowledgeWare, Inc. Shareholder Litigation, Master File No. 1:92-CV-1651-
JTC, pending in the United States District Court for the Northern District of
Georgia (the "1991 Class Action"), was a class action lawsuit alleging
violations of Sections 20 and 10(b) of the Exchange Act and Rule 10b-5 under
the Exchange Act. In summary, the complaint alleged that KnowledgeWare
misrepresented or failed to disclose material facts which would have a material
adverse impact on KnowledgeWare or approved such misrepresentations and
omissions. The complaint sought compensatory damages and reimbursements for the
plaintiffs' fees and expenses. On January 26, 1994, KnowledgeWare entered into
and the District Court preliminarily approved a stipulation of settlement of
the 1991 Class Action (the "Settlement Agreement"). By entering into the
settlement, KnowledgeWare did not admit the allegations in the suit and, to the
contrary, denied any wrongdoing. The Settlement Agreement, which received final
court approval in April 1994, required a cash payment of $1,750,000, all of
which was paid by KnowledgeWare's insurance carrier, and the issuance by
KnowledgeWare of the Warrants, which allow the holders to acquire an aggregate
of 500,000 shares of KnowledgeWare's Common Stock at a price of $17.50 per
share. The Warrants are exercisable for a period of three years from June 9,
1994 (the date of issuance). On August 30, 1994, the plaintiffs in the 1991
Class Action filed a "Motion to Enforce Stipulation of Settlement, for
Temporary Injunction of Merger and for Damages Resulting from Fraud" (the
"Motion"). In the Motion, the plaintiffs allege that the proposed business
combination between KnowledgeWare and Sterling and the announcement by
KnowledgeWare that it modified its accounting policy for revenue recognition
and restated financial results for the first three quarters of fiscal year 1994
resulted in a substantially reduced value of the Warrants available to the
plaintiffs under the Settlement Agreement. Accordingly, the plaintiffs moved
the District Court for a decree of specific performance of the terms of the
Settlement Agreement entailing the delivery of new warrants of equivalent value
to the original value of the Warrants, and for a preliminary injunction of the
consummation of any business combination between KnowledgeWare and Sterling,
pending compliance by KnowledgeWare with the terms of the Settlement Agreement.
Alternatively, the plaintiffs moved for a declaration that the Warrant
Agreement set forth in the Settlement Agreement was the product of fraud and
for an award to the plaintiffs of the appropriate measure of damages.
 
                                       14
<PAGE>
 
 
  On August 30 and 31, 1994, five lawsuits were filed against KnowledgeWare in
the United States District Court for the Northern District of Georgia, Atlanta
Division. The respective cases are styled as follows: (1) Marshall Wolf, on
behalf of himself and all others similarly situated v. KnowledgeWare, Inc.,
Francis A. Tarkenton, Donald P. Addington, and Rick W. Gossett, Civil Action
File No. 1:94-CV-2312-JEC; (2) Ernest Deangelis, on behalf of himself and all
others similarly situated v. KnowledgeWare, Inc., Francis A. Tarkenton, Donald
P. Addington, and Rick W. Gossett, Civil Action No. 1:94-CV-2303-JEC; (3)
Steven Covington, on behalf of himself and all others similarly situated v.
KnowledgeWare, Inc., Francis A. Tarkenton, Donald P. Addington, and Rick W.
Gossett, Civil Action File No. 1:94-CV-2301-JEC; (4) Sam Wietschner v.
KnowledgeWare, Inc., Francis A. Tarkenton, Donald P. Addington, and Rick W.
Gossett, Civil Action File No. 1:94-CV-2320-JEC; and (5) Jack Schecter v.
KnowledgeWare, Inc., Francis A. Tarkenton, Donald P. Addington, and Rick W.
Gossett, Civil Action File No. 1:94-CV-2302-JEC. Three lawsuits were filed
against KnowledgeWare in the United States District Court for the Northern
District of Georgia, Atlanta Division on September 12, 22 and 23, 1994. The
respective cases are styled as follows: (6) Subhash Bhardwaj, on behalf of
himself and all others similarly situated v. KnowledgeWare, Inc., Francis A.
Tarkenton, Donald P. Addington, and Rick W. Gossett, Civil Action File No.
1:94-CV-2427-JEC; (7) Wayne D. Thornhill, individually, as Attorney in Fact for
Georgette C. Thornhill, and on behalf of himself and all others similarly
situated v. KnowledgeWare, Inc., Francis A. Tarkenton, Donald P. Addington, and
Rick W. Gossett, Civil Action File No. 1:94-CV-2538-JEC; and (8) Paul Cross, on
behalf of himself and all others similarly situated v. KnowledgeWare, Inc.,
Francis A. Tarkenton, Donald P. Addington, and Rick W. Gossett, Civil Action
File No. 1:94-CV-2540-JEC (each of those actions numbered 1-8 may be
hereinafter referred to as the "1994 Class Action Suits"). Each of the 1994
Class Action Suits is purportedly a class action lawsuit on behalf of the
KnowledgeWare stockholders alleging violations of Sections 20 and 10(b) of the
Exchange Act, and Rule 10b-5 under the Exchange Act. The alleged factual basis
underlying the 1994 Class Action Suits and the relief sought therein is the
plaintiffs' allegations that KnowledgeWare and the individual defendants
actively misrepresented or failed to disclose the actual financial condition of
KnowledgeWare throughout fiscal year 1994 and that the value of the
KnowledgeWare Common Stock was artificially inflated as a result of such
misrepresentations or failures to disclose. Each of the 1994 Class Action Suits
seeks compensatory damages and reimbursement for the plaintiffs' fees and
expenses.
 
  On September 9, 1994, a lawsuit styled Ecta Corporation and Fairfield
Development, Inc. v. KnowledgeWare, Inc., Donald P. Addington and Francis A.
Tarkenton, Civil Action File No. 4-94-CV-80587, was filed against KnowledgeWare
in the Southern District of Iowa, Central Division (the "Ecta Suit"). The Ecta
Suit is a lawsuit alleging violations of Section 10(b) of the Exchange Act,
Rule 10b-5 under the Exchange Act, Section 12(2) of the Securities Act,
violation of the Iowa Blue Sky Laws (Iowa Stat. Ann. (S)502.502), fraud and
breach of contract. The alleged factual basis underlying the Ecta Suit arises
in connection with the purchase by KnowledgeWare of substantially all of the
assets of ClearAccess Corporation (now known as Ecta Corporation) and Fairfield
Software, Inc. (now known as Fairfield Development, Inc.) pursuant to an Asset
Purchase Agreement dated May 26, 1994 (the "Acquisition Agreement"). The
plaintiffs allege that KnowledgeWare and the individual defendants
misrepresented or failed to disclose the actual financial condition of the
KnowledgeWare, that the value of the KnowledgeWare Common Stock was
artificially inflated as a result of such misrepresentations or failures to
disclose and that KnowledgeWare has breached certain warranties,
representations and covenants made in the Acquisition Agreement. The Ecta Suit
seeks compensatory damages, rescission of the Acquisition Agreement and/or the
sale of KnowledgeWare's securities issued pursuant thereto, punitive damages,
prejudgment interest, and reimbursement of attorneys' fees and costs. See
"Certain Information Regarding KnowledgeWare--Legal Proceedings."
 
  Losses, claims, liabilities, judgments, costs and expenses of KnowledgeWare,
Merger Sub and Sterling resulting from the above-described Actions will result
in claims for indemnification to be satisfied from the Escrowed Shares. As of
October 26, 1994, KnowledgeWare estimates that approximately $55,000 of costs
and expenses have been incurred since August 31, 1994 with respect to the
above-described Actions.
 
  KnowledgeWare has received informal requests for information from the Staff
of the Commission as to which persons and entities had knowledge of the
negotiations between KnowledgeWare and Sterling prior to the public
announcement of the Initial Merger Agreement on August 1, 1994, and as to the
circumstances with respect to KnowledgeWare's restatement of financial results
for the first three quarters of fiscal 1994.
 
                                       15
<PAGE>
 
 
  Financial Condition of KnowledgeWare. KnowledgeWare incurred a net loss for
fiscal 1994 of $19.0 million. As a result, certain covenants in the Loan
Agreement were violated which caused all amounts owed thereunder to be
immediately due and payable. The loss, together with the covenant violations,
resulted in the inclusion in the auditors' report on the financial statements
of KnowledgeWare of an explanatory paragraph indicating that, at June 30, 1994,
there existed substantial doubt about KnowledgeWare's ability to continue as a
going concern. KnowledgeWare addressed the covenant violations under its Loan
Agreement and its immediate liquidity needs by entering into the Amended Loan
Agreement with Sterling and negotiating delayed payment terms with certain
vendors during the pendency of the Merger. Nonetheless, KnowledgeWare expects
that the current liquidity and cash flow issues, operating losses and lack of
predictability concerning its future business and prospects will continue until
the consummation of the Merger. For example, although no material suppliers
have refused to do business with KnowledgeWare or have changed the terms under
which they will do business with KnowledgeWare, it appears that certain
KnowledgeWare customers have slowed their payments and delayed their purchases
during the pendency of the Merger resulting in reduced cash flow from
operations. As a result, KnowledgeWare expects that it will need at least an
additional $8 million in cash to fund operations prior to the end of November
1994.
 
  To help alleviate KnowledgeWare's anticipated cash flow problems, on October
25, 1994, Sterling and KnowledgeWare amended the Amended Loan Agreement to
increase the revolving portion of the facility to $22 million and agreed to
waive the borrowing base requirements with respect to borrowings of up to $16
million under the revolving portion of the facility. Sterling expects that it
likely will grant additional waivers with respect to the borrowing base
requirements if KnowledgeWare needs additional cash to fund operations prior to
the consummation of the Merger. Because KnowledgeWare has been able to borrow
under the Amended Loan Agreement to meet its cash flow needs, KnowledgeWare's
operations have not been significantly adversely affected by its liquidity and
cash flow problems. As of the date of this Proxy Statement/Prospectus,
KnowledgeWare had outstanding borrowings of approximately $20.0 million of the
$28 million available under the Amended Loan Agreement. As of September 30,
1994, KnowledgeWare had (i) approximately $  million of receivables which are
90 days or more past due, representing approximately  % of total receivables
and (ii) approximately $  million of trade payables which are more than 60 days
past the date of invoice, representing approximately  % of total trade
payables. KnowledgeWare expects that these liquidity and cash flow problems
will be solved upon the consummation of the Merger because it will become a
subsidiary of Sterling, which is a much more financially sound entity. For
example, as of June 30, 1994, Sterling had approximately $135 million of
available cash and marketable securities, had availability under its line of
credit with Bank of Boston, N.A. of approximately $33 million, and cash flow
from operations for the nine months ended June 30, 1994 was approximately $60
million.
 
  If the Merger should not be completed, KnowledgeWare would require
substantial additional cash from alternative sources in order to fund currently
anticipated cash and capital requirements and would likely violate certain
covenants under the Amended Loan Agreement. In addition, if the Merger is not
consummated, there can be no assurance that KnowledgeWare will be able to
obtain additional sources of cash to meet its needs. Furthermore, KnowledgeWare
believes it is unlikely that it would be able to refinance its indebtedness
under the Amended Loan Agreement were KnowledgeWare to be in default thereunder
or should the Merger not be consummated. Finally, if the Merger is not
consummated, KnowledgeWare is presently unaware of any other potential merger
partners or sources of equity capital. The result, should the Merger not be
consummated, is that KnowledgeWare would have to consider a variety of actions
to address its liquidity and cash flow problems including making additional
reductions in headcount and spending, selling assets or seeking protection
under laws relating to bankruptcy, insolvency, reorganization or other laws
relating to relief of debtors (collectively, "bankruptcy laws"). To date,
KnowledgeWare has not given significant consideration to seeking protection
under the bankruptcy laws.
 
  KnowledgeWare anticipates that it will incur a substantial operating loss in
the first quarter of fiscal 1995. In addition, KnowledgeWare expects to report
a charge to earnings in the first quarter of fiscal 1995 of approximately $6
million attributable to its previously announced plan of restructuring.
KnowledgeWare may also report a charge to earnings in the first quarter of
fiscal 1995 with respect to the 1991 Class Action, the 1994 Class Action Suits
and the Ecta Suit; however, the amount of such charge, if any, cannot be
estimated at this time. KnowledgeWare anticipates filing its Quarterly Report
on Form 10-Q for the quarter ended September 30, 1994 on or before November 14,
1994 and publicly announcing such results on or before such date. When filed
with the Commission, KnowledgeWare's Quarterly Report on Form 10-Q shall be
deemed incorporated by reference in this Proxy Statement/Prospectus and the
information contained in such Quarterly Report should be considered by holders
of shares of KnowledgeWare Common Stock. See "Incorporation of Certain
Documents By Reference."
 
 
                                       16
<PAGE>
 
SUMMARY HISTORICAL AND PRO FORMA FINANCIAL INFORMATION
 
           STERLING SOFTWARE SUMMARY HISTORICAL FINANCIAL INFORMATION
 
  The summary consolidated financial data presented below has been derived from
the financial statements of Sterling for each of the five fiscal years in the
period ended September 30, 1993 and from unaudited financial statements for the
nine months ended each of June 30, 1994 and 1993. The data should be read in
conjunction with the financial statements of Sterling and the related notes
incorporated by reference in this Proxy Statement/Prospectus.
 
           STERLING SOFTWARE SUMMARY CONSOLIDATED FINANCIAL DATA (1)
                     (IN THOUSANDS, EXCEPT PER SHARE DATA)
 
<TABLE>
<CAPTION>
                          NINE MONTHS ENDED
                              JUNE 30,               YEARS ENDED SEPTEMBER 30,
                          ----------------- ------------------------------------------------
                            1994     1993   1993(5)     1992      1991      1990      1989
                          -------- -------- --------  --------  --------  --------  --------
<S>                       <C>      <C>      <C>       <C>       <C>       <C>       <C>
STATEMENT OF OPERATIONS
 DATA: (2)
Revenue.................  $338,126 $301,101 $411,795  $378,056  $333,381  $278,301  $244,788
Income (loss) before
 other income (expense),
 income taxes, extraor-
 dinary item and cumula-
 tive effect of a change
 in accounting principle
 (3)....................    64,980   27,592  (45,400)   11,551    (5,413)   10,911    24,029
Income (loss) before ex-
 traordinary items and
 cumulative effect of a
 change in accounting
 principle..............    39,526   15,279  (33,350)   (5,162)   (2,407)    2,051    14,112
Income (loss) applicable
 to common stockholders.    39,379   10,070  (38,609)   (6,636)   (5,700)      --     13,790
Per common share da-
 ta(4):
 Income (loss) before
  extraordinary items
  and cumulative effect
  of a change in ac-
  counting principle....  $   1.60 $    .75 $  (2.00) $   (.43) $   (.52) $   (.09) $    .88
 Net income (loss)......      1.60      .53    (2.24)     (.43)     (.48)      --       1.04
</TABLE>
 
<TABLE>
<CAPTION>
                                                   SEPTEMBER 30,
                           JUNE 30, --------------------------------------------
                             1994     1993     1992     1991     1990     1989
                           -------- -------- -------- -------- -------- --------
<S>                        <C>      <C>      <C>      <C>      <C>      <C>
BALANCE SHEET DATA:
Working capital........... $124,939 $ 51,298 $ 38,271 $ 32,402 $ 28,885 $ 51,365
Total assets..............  450,385  397,661  345,361  330,499  319,944  252,811
Long-term notes payable...  116,267  116,817   79,917   84,833   95,990   67,219
Stockholders' equity......  155,430   97,213  117,584  108,468  102,093   94,643
</TABLE>
- --------
(1) In July 1993, Sterling acquired Systems Center in a merger accounted for as
    pooling of interests. Sterling's consolidated financial statements have
    been retroactively adjusted to include the results of Systems Center for
    all periods prior to the merger with Systems Center. Sterling's separate
    statement of operations data for periods prior to the merger with Systems
    Center is summarized as follows:
 
<TABLE>
<CAPTION>
                            NINE MONTHS
                               ENDED         YEARS ENDED SEPTEMBER 30,
                             JUNE 30,   -----------------------------------
                               1993       1992     1991     1990     1989
                            ----------- -------- -------- -------- --------
                               (IN THOUSANDS, EXCEPT PER SHARE INFORMATION)
<S>                         <C>         <C>      <C>      <C>      <C>      
 Revenue...................  $207,285   $259,261 $220,738 $195,447 $177,697
 Income from continuing
  operations before ex-
  traordinary items........    14,047     13,798   10,056    8,666    6,511
 Income applicable to com-
  mon stockholders.........    12,419     13,406    7,050    6,615    6,189
 Per common share data:
    Income from continuing
     operations before
     extraordinary items...  $   1.04   $   1.19 $    .81 $    .73 $    .51
    Net income.............  $    .94   $   1.19 $    .85 $    .84 $    .81
</TABLE>
(2) In the fourth quarter of 1993, Sterling adopted Financial Accounting
    Standard No. 109, "Accounting for Income Taxes" ("FAS No. 109"). Financial
    statements for all periods prior to the adoption of FAS No. 109 were
    restated.
(3) Income (loss) before other income (expense), income taxes, extraordinary
    items and cumulative effect of a change in accounting principle includes
    restructure charges of $91,260,000, $11,515,000 and $23,085,000 in 1993,
    1992 and 1991, respectively.
(4) Computed on a fully diluted basis.
(5) Sterling adopted Financial Accounting Standards No. 106, "Employers'
    Accounting for Postretirement Benefits Other Than Pensions" ("FAS No. 106")
    as of October 1, 1992. The cumulative effect of the adoption of FAS No. 106
    was $2,774,000, representing the accumulated benefit obligation existing at
    that date, net of related income tax benefit of $1,813,000. In addition,
    postretirement benefit costs for the year ended September 30, 1993
    increased by $1,211,000 as a result of adoption of the new standard.
    Postretirement benefit costs for prior years, which were recorded on a cash
    basis, were not material and have not been restated.
 
 
                                       17
<PAGE>
 
             KNOWLEDGEWARE SUMMARY HISTORICAL FINANCIAL INFORMATION
 
  The summary consolidated financial data presented below has been derived from
the historical financial statements of KnowledgeWare for each of the five
fiscal years in the period ended June 30, 1994. The data should be read in
conjunction with the financial statements of KnowledgeWare and the related
notes incorporated by reference in this Proxy Statement/Prospectus.
 
               KNOWLEDGEWARE SUMMARY CONSOLIDATED FINANCIAL DATA
                     (IN THOUSANDS, EXCEPT PER SHARE DATA)
 
<TABLE>
<CAPTION>
                                             YEARS ENDED JUNE 30,
                                  ----------------------------------------------
                                    1994      1993      1992      1991    1990
                                  --------  --------  --------  -------- -------
   <S>                            <C>       <C>       <C>       <C>      <C>
   STATEMENT OF OPERATIONS DATA:
   Revenues.....................  $132,491  $128,761  $116,542  $125,004 $66,229
   Income (loss) from opera-
    tions.......................   (19,096)  (27,539)     (946)   21,306  11,541
   Net income (loss)............   (19,030)  (25,799)      356    15,135   9,005
   Net income (loss) per common
    share.......................     (1.34)    (1.94)      .03      1.13     .71
<CAPTION>
                                                   JUNE 30,
                                  ----------------------------------------------
                                    1994      1993      1992      1991    1990
                                  --------  --------  --------  -------- -------
   <S>                            <C>       <C>       <C>       <C>      <C>
   BALANCE SHEET DATA:
   Working capital..............  $ (9,753) $  1,089  $ 30,897  $ 43,724 $36,068
   Total assets.................   119,644   125,681   130,130   119,878  71,964
   Long-term debt, less current
    portion.....................       836     3,624       --        --      --
   Shareholders' equity.........    52,351    53,732    77,626    74,899  52,465
</TABLE>
 
 
                                       18
<PAGE>
 
 
  The following summary pro forma combined financial information should be read
in conjunction with the Pro Forma Combined Condensed Financial Information
included elsewhere herein and the separate historical financial statements of
Sterling and KnowledgeWare and notes thereto incorporated by reference in this
Proxy Statement/Prospectus. The pro forma combined financial data are not
necessarily indicative of the operating results that would have been achieved
had the Merger been effective during the periods presented or the results that
may be obtained in the future.
 
                SUMMARY PRO FORMA COMBINED FINANCIAL INFORMATION
                     (IN THOUSANDS, EXCEPT PER SHARE DATA)
 
<TABLE>
<CAPTION>
                                            NINE MONTHS ENDED     YEAR ENDED
                                              JUNE 30, 1994   SEPTEMBER 30, 1993
                                            ----------------- ------------------
<S>                                         <C>               <C>
STATEMENT OF OPERATIONS DATA:
Revenue...................................      $437,393           $543,823
Income (loss) before other income
 (expense) and income taxes, extraordinary
 item and cumulative effect of a change in
 accounting principle(1)(2)...............        44,221            (74,494)
Income (loss) before extraordinary items
 and cumulative effect of change in
 accounting principle.....................        19,557            (60,318)
Income (loss) per common share before
 extraordinary items and cumulative effect
 of change in accounting principle:
  Primary.................................      $    .79           $  (3.13)
  Fully diluted...........................           .79              (3.13)
Shares used to compute per share data:
  Primary.................................        24,840             19,607
  Fully diluted...........................        24,840             19,607
</TABLE>
 
<TABLE>
<CAPTION>
                                       JUNE 30, 1994
                                 -------------------------
                                  STERLING   KNOWLEDGEWARE  PRO FORMA
                                 HISTORICAL   HISTORICAL   ADJUSTMENTS COMBINED
                                 ----------- ------------- ----------- --------
<S>                              <C>         <C>           <C>         <C>
BALANCE SHEET DATA: (2)
Working capital.................  $124,939     $ (9,753)    $(29,500)  $ 85,686
Total assets....................   450,385      119,644      (14,806)   555,223
Long-term debt, less current
 portion........................   116,267          836           --    117,103
Total stockholders' equity......   155,430       52,351      (33,040)   174,741
</TABLE>
- --------
(1) Includes restructure costs of $113,236,000 in 1993.
(2) The Merger is expected to be accounted for utilizing the purchase method of
    accounting. The purchase price has been allocated to consolidated assets
    and liabilities of KnowledgeWare based on preliminary estimates of fair
    value. Substantial costs are expected to occur as a result of the
    combination of the two companies, including costs with respect to the
    elimination of duplicate facilities, severance costs related to the
    termination of certain employees, transaction costs, and writeoff of costs
    related to certain software products which will not be actively marketed by
    the combined company. Such costs directly related to the acquisition of
    KnowledgeWare are expected to be approximately $25 million and are included
    in the aggregate cost of the Merger. Such costs related to Sterling are
    expected to be approximately $12 million and are expected to be charged to
    the future results of operations of the combined company and are excluded
    from the pro forma combined results of operations. The pro forma combined
    results of operations also exclude approximately $46.0 million of purchased
    research and development costs which will be charged to expense in the
    period the Merger is consummated.
 
 
                                       19
<PAGE>
 
COMPARATIVE PER SHARE DATA
 
  The following table sets forth certain historical per share data of Sterling
and KnowledgeWare and combined per share data on a pro forma basis after giving
effect to the Merger utilizing the purchase method of accounting assuming that
2,407,005 shares of Sterling Common Stock are issued in connection with the
Merger. Because the Escrowed Shares will be outstanding and may be distributed
to KnowledgeWare common stockholders, or may be sold for the benefit of
Sterling in order to satisfy Sterling's rights to indemnification, all such
shares are deemed to be outstanding.
 
<TABLE>
<CAPTION>
                                           NINE MONTHS ENDED     YEAR ENDED
                                             JUNE 30, 1994   SEPTEMBER 30, 1993
                                           ----------------- ------------------
<S>                                        <C>               <C>
Sterling--historical
  Income (loss) before extraordinary items
   and cumulative effect of change in
   accounting principle...................       $1.60            $ (2.00)
  Book value..............................        7.60               5.37
</TABLE>
 
<TABLE>
<CAPTION>
                                            NINE MONTHS ENDED     YEAR ENDED
                                              JUNE 30, 1994   SEPTEMBER 30, 1993
                                            ----------------- ------------------
<S>                                         <C>               <C>
KnowledgeWare--historical (1)
  Loss before cumulative effect of
   accounting change.......................      $(1.39)            $(1.95)
  Book value...............................        3.60               4.19
</TABLE>
 
<TABLE>
<CAPTION>
                                           NINE MONTHS ENDED     YEAR ENDED
                                             JUNE 30, 1994   SEPTEMBER 30, 1993
                                           ----------------- ------------------
<S>                                        <C>               <C>
Pro forma combined--per share of Sterling
 Common:
  Income (loss) before extraordinary item
   and cumulative effect of accounting
   change.................................       $ .79            $ (3.13)
  Book value..............................        7.65
Equivalent pro forma combined--per share
 of KnowledgeWare Common Stock:
  Based on the Exchange Ratio:
   Income (loss) before extraordinary item
    and cumulative effect of accounting
    change................................       $ .13            $  (.52)
   Book value.............................        1.26
  Based on the Net Exchange Ratio:
   Income (loss) before extraordinary item
    and cumulative effect of accounting
    change................................       $ .10            $ (.41)
   Book value.............................        1.01
</TABLE>
- --------
(1) Derived from KnowledgeWare's historical financial statements, incorporated
    by reference herein. See "Pro Forma Combined Condensed Financial
    Information."
 
COMPARATIVE MARKET PRICES
 
  Sterling Common Stock is listed on the NYSE under the symbol "SSW" and
KnowledgeWare Common Stock is quoted through The Nasdaq National Market System
(the "NMS") under the symbol "KNOW".
 
                                       20
<PAGE>
 
 
  The following table sets forth, for the periods indicated, the high and low
closing sales prices per share of Sterling Common Stock and KnowledgeWare
Common Stock as quoted on the NYSE and the NMS, respectively.
 
<TABLE>
<CAPTION>
                                               STERLING COMMON   KNOWLEDGEWARE
                                                    STOCK        COMMON STOCK
                                               --------------- -----------------
                                                HIGH     LOW     HIGH      LOW
                                               ------- ------- --------- -------
<S>                                            <C>     <C>     <C>       <C>
CALENDAR YEAR 1991
1st Quarter................................... $13 3/8 $ 7 1/2 $40 1/8   $19 3/4
2nd Quarter...................................  14 1/2     11   43        21 3/4
3rd Quarter...................................  16 5/8  11 3/4  29 3/4    17 7/8
4th Quarter...................................  24 5/8  15 3/8  19 1/8    10 1/2
CALENDAR YEAR 1992
1st Quarter................................... $24 3/4 $20 1/8 $21 1/4   $14 5/8
2nd Quarter...................................  21 3/8  13 7/8  16        10 3/4
3rd Quarter...................................  18 7/8     16   13 1/2     9 7/8
4th Quarter...................................  22 3/8  15 1/2  15 5/8       10
CALENDAR YEAR 1993
1st Quarter................................... $24 3/8 $19 3/8 $15 3/4   $ 9 1/4
2nd Quarter...................................  23 3/8  17 5/8  12 5/8        8
3rd Quarter...................................     24      19   12           10
4th Quarter...................................  33 1/2     24   18 3/4    11 1/8
CALENDAR YEAR 1994
1st Quarter................................... $34 1/2 $   28  $17       $   12
2nd Quarter...................................  34 1/4  27 1/8  13 3/4     5 1/2
3rd Quarter...................................  31 5/8  25 3/8   7 11/16   2 5/8
4th Quarter (through October   , 1994)........  30 5/8  28 3/4   3 7/8     3 1/2
</TABLE>
 
  On August 31, 1994, the last trading day preceding the public announcement of
the execution of the Merger Agreement, as amended and restated, the closing
sale prices per share of Sterling Common Stock and KnowledgeWare Common Stock
were $28 7/8 and $4 1/2, respectively. Based on such closing sale price of
Sterling Common Stock, the market value of .1653 of a share of Sterling Common
Stock was $4.77 (representing a premium of $0.27 per share to the market price
for KnowledgeWare Common Stock) and the market value of .1322 of a share of
Sterling Common Stock was $3.85 (representing a discount of $0.65 per share to
the market price for KnowledgeWare Common Stock). On October  , 1994, the
closing sale prices per share of Sterling Common Stock and KnowledgeWare Common
Stock were $    and $   , respectively. Based on such closing sale price of
Sterling Common Stock, the market value of .1653 of a share of Sterling Common
Stock was $    and the market value of .1322 of a share of Sterling Common
Stock was $   .
 
  Stockholders of KnowledgeWare are urged to obtain current market quotations
for Sterling Common Stock and KnowledgeWare Common Stock.
 
                                       21
<PAGE>
 
                           INVESTMENT CONSIDERATIONS
 
  Holders of shares of KnowledgeWare Common Stock should carefully consider
all of the information set forth in this Proxy Statement/Prospectus and, in
particular, the following specific investment considerations with respect to
the Merger and shares of Sterling Common Stock to be received in connection
with the Merger.
 
INTEGRATION OF THE TWO COMPANIES; TRANSACTION COSTS
 
  The anticipated benefits of the Merger will not be achieved unless Sterling
and KnowledgeWare successfully integrate the two companies in a timely manner.
Because the enterprise software industry is highly competitive and because of
the inherent uncertainties associated with merging two large companies, there
can be no assurance that the combined company will be able to realize the
economies of scale and operating efficiencies that Sterling and KnowledgeWare
currently expect to realize as a result of the consolidation of their
operations. Any difficulties encountered in the transition process could have
an adverse impact on the revenues and operating results of the combined
company. Additionally, following the Merger, the combined company expects to
incur approximately $12 million of costs associated with Sterling's
elimination of duplicate facilities, severance costs relating to the
termination of certain employees and the write off of costs relating to
certain software products which will not be actively marketed by the combined
company, net of related deferred income tax benefit.
 
  Sterling considered a number of factors in determining to enter into the
Merger Agreement, including without limitation the following: (i) the two
companies' enterprise software product lines are complementary with minimal
overlap and consist of some of the best known products in the industry; (ii)
the combined company's applications development suite of products will
position the combined company as one of the leaders in that market; and (iii)
KnowledgeWare's products will provide Sterling an expanded presence in the
client/server market with proven products. See "The Merger--Reasons for the
Merger; Recommendation of the KnowledgeWare Board of Directors." However,
there can be no assurance that any of such anticipated benefits will be
realized or that the combined company will be able to retain or increase sales
to any of KnowledgeWare's customers following the Merger.
 
FINANCIAL CONDITION OF KNOWLEDGEWARE
 
  In early fiscal 1994, KnowledgeWare initiated a business plan to market its
products through indirect distribution channels, which included third party
resellers in both the commercial and government markets. Based on the
successful receivable collection experience of KnowledgeWare with respect to
end user customers, KnowledgeWare did not anticipate significant collection
difficulties from its newly implemented reseller program and, accordingly, did
not implement specific credit procedures for the program. In the course of the
1994 year-end closing process, KnowledgeWare became aware that certain
resellers asserted that they either could not or were not required to pay
KnowledgeWare until they had consummated sales to end users and received
payments for the products. After careful analysis of these receivables,
KnowledgeWare modified its accounting policy for reseller license revenue
recognition to more accurately reflect its collection experience from the
third party reseller program, retroactive to the beginning of fiscal 1994. In
addition, during fiscal 1994, KnowledgeWare incurred increased selling and
marketing costs relative to KnowledgeWare's newer product lines in expectation
of significantly increased product license revenues which were not realized.
KnowledgeWare incurred a net loss for fiscal 1994 of $19.0 million.
 
  As a result, certain covenants in the Loan Agreement were violated, which
caused all amounts owed thereunder to be immediately due and payable. The
loss, together with the covenant violations, resulted in the inclusion in the
auditors' report on the financial statements of KnowledgeWare of an
explanatory paragraph indicating that, at June 30, 1994, there existed
substantial doubt about KnowledgeWare's ability to continue as a going
concern. KnowledgeWare addressed the covenant violations under its Loan
Agreement and its immediate liquidity needs by entering into the Amended Loan
Agreement with Sterling and negotiating delayed payment terms with certain
vendors during the pendency of the Merger. Nonetheless, KnowledgeWare expects
that the current liquidity and cash flow issues, operating losses and lack of
predictability concerning its future business and prospects will continue
until the consummation of the Merger. For example, although no material
suppliers have refused to do business with KnowledgeWare or have changed the
terms under which they will do business with KnowledgeWare, it appears that
certain KnowledgeWare customers have slowed their payments and delayed their
purchases during the pendency of the Merger resulting in reduced cash flow
from operations. As a result, KnowledgeWare expects that it will need at least
an additional $8 million in cash to fund operations prior to the end of
November 1994.
 
  To help alleviate KnowledgeWare's anticipated cash flow problems, on October
25, 1994, Sterling and KnowledgeWare amended the Amended Loan Agreement to
increase the revolving portion of the facility to
 
                                      22
<PAGE>
 
$22 million and agreed to waive the borrowing base requirements with respect
to borrowings of up to $16 million under the revolving portion of the
facility. Sterling expects that it likely will grant additional waivers with
respect to the borrowing base requirements if KnowledgeWare needs additional
cash to fund operations prior to the consummation of the Merger. Because
KnowledgeWare has been able to borrow under the Amended Loan Agreement to meet
its cash flow needs, KnowledgeWare's operations have not been significantly
adversely affected by its liquidity and cash flow problems. As of the date of
this Proxy Statement/Prospectus, KnowledgeWare had outstanding borrowings of
approximately $20.0 million of the $28 million available under the Amended
Loan Agreement. As of September 30, 1994, KnowledgeWare had (i) approximately
$  million of receivables which are 90 days or more past due, representing
approximately  % of total receivables and (ii) approximately $  million of
trade payables which are more than 60 days past the date of invoice,
representing approximately  % of total trade payables. KnowledgeWare expects
that these liquidity and cash flow problems will be solved upon the
consummation of the Merger because it will become a subsidiary of Sterling,
which is a much more financially sound entity. For example, as of June 30,
1994, Sterling had approximately $135 million of available cash and marketable
securities, had availability under its line of credit with Bank of Boston,
N.A. of approximately $33 million, and cash flow from operations for the nine
months ended June 30, 1994 was approximately $60 million.
 
  If the Merger should not be completed, KnowledgeWare would require
substantial additional cash from alternative sources in order to fund
currently anticipated cash and capital requirements and would likely violate
certain covenants under the Amended Loan Agreement. In addition, if the Merger
is not consummated, there can be no assurance that KnowledgeWare will be able
to obtain additional sources of cash to meet its needs. Furthermore,
KnowledgeWare believes it is unlikely that it would be able to refinance its
indebtedness under the Amended Loan Agreement were KnowledgeWare to be in
default thereunder or should the Merger not be consummated. Finally, if the
Merger is not consummated, KnowledgeWare is presently unaware of any other
potential merger partners or sources of equity capital. The result, should the
Merger not be consummated, is that KnowledgeWare would have to consider a
variety of actions to address its liquidity and cash flow problems including
making additional reductions in headcount and spending, selling assets or
seeking protection under laws relating to bankruptcy laws. To date,
KnowledgeWare has not given significant consideration to seeking protection
under the bankruptcy laws.
 
  KnowledgeWare anticipates that it will incur a substantial operating loss in
the first quarter of fiscal 1995. In addition, KnowledgeWare expects to report
a charge to earnings in the first quarter of fiscal 1995 of approximately $6
million attributable to its previously announced plan of restructuring.
KnowledgeWare may also report a charge to earnings in the first quarter of
fiscal 1995 with respect to the 1991 Class Action, the 1994 Class Action Suits
and the Ecta Suit; however, the amount of such charge, if any, cannot be
estimated at this time. KnowledgeWare anticipates filing its Quarterly Report
on Form 10-Q for the quarter ended September 30, 1994 on or before November
14, 1994 and publicly announcing such results on or before such date. When
filed with the Commission, KnowledgeWare's Quarterly Report on Form 10-Q shall
be deemed incorporated by reference in this Proxy Statement/Prospectus and the
information contained in such Quarterly Report should be considered by holders
of shares of KnowledgeWare Common Stock. See "Incorporation of Certain
Documents By Reference."
 
ESTABLISHMENT OF ESCROW
 
  On July 31, 1994, Sterling, KnowledgeWare and Merger Sub entered into an
Agreement and Plan of Merger (the "Initial Merger Agreement") contemplating,
among other things, an exchange ratio of .2983 of a share of Sterling Common
Stock for each share of KnowledgeWare Common Stock outstanding (the "Original
Exchange Ratio").
 
  Following execution of the Initial Merger Agreement, KnowledgeWare continued
to work on finalizing its fourth quarter and year-end financial results.
During the course of its 1994 fiscal year end audit, KnowledgeWare and its
independent auditors undertook an evaluation of KnowledgeWare's credit
procedures for its third party resellers and its fiscal 1994 collection
experience on reseller accounts receivable. This review led KnowledgeWare, in
consultation with its independent auditors, to reevaluate KnowledgeWare's
accounting policy for revenue recognition on sales to third party resellers
and to discuss the possible modification of its accounting policy on the
recognition of revenue for sales to resellers. KnowledgeWare considered that
the effect of such a modification of accounting policy would be retroactive,
resulting in a restatement of first, second and third quarter revenues for
fiscal year 1994 and a lower level of fourth quarter revenue, and resulting in
the existence of a shortfall in eligible receivables under the Loan
 
                                      23
<PAGE>
 
Agreement with IBM Credit, all of which could create the possibility that
Sterling could terminate the Initial Merger Agreement. Renegotiation of the
Initial Merger Agreement by the managements of KnowledgeWare and Sterling led
to the execution of the Merger Agreement, which contains the revised terms of
the Merger. Under the Merger Agreement, the Original Exchange ratio was revised
so that holders of KnowledgeWare Common Stock will be entitled to receive up to
.1653 of a share of Sterling Common Stock for each share of KnowledgeWare
Common Stock. Promptly after the Merger, KnowledgeWare common stockholders will
be entitled to receive up to .1322 of a share of Sterling Common Stock for each
share of KnowledgeWare Common Stock; the remaining 20% of the number of shares
of Sterling Common Stock issuable upon effectiveness of the Merger will be
placed in escrow pursuant to the terms of the Escrow Agreement and thereafter
distributed to KnowledgeWare common stockholders only if and to the extent that
such shares are not necessary to cover certain losses, claims, liabilities,
judgments, costs and expenses that may be incurred by Sterling, Merger Sub or
KnowledgeWare in connection with any Action (including amounts paid in
settlement) to which Sterling, Merger Sub or KnowledgeWare is or may become a
party and with respect to which Sterling is entitled to indemnification.
Sterling is entitled to indemnification concerning certain Actions pending as
of the date of the Merger Agreement or thereafter arising, including Actions
arising out of violations or alleged violations of securities laws, but
excluding any Actions arising out of ordinary course of business transactions.
Actions brought by current or former employees with respect to their employment
or termination thereof and certain other Actions. Since August 30, 1994, a
number of Actions have been filed against KnowledgeWare and certain of its
officers alleging violations of securities laws. If these Actions result in
losses, claims, liabilities, judgments, costs or expenses (including amounts
paid in settlement) to KnowledgeWare, Merger Sub or Sterling, such losses,
claims, liabilities, judgments, costs or expenses will result in a claim for
indemnification to be satisfied from the Escrowed Shares. In the event that all
of the Escrowed Shares are used to cover losses, claims, liabilities,
judgments, costs or expenses incurred by KnowledgeWare, Merger Sub or Sterling,
no Escrowed Shares will be distributed to the KnowledgeWare common
stockholders. See "The Merger Agreement--The Merger" and "The Escrow
Agreement."
 
CERTAIN LEGAL PROCEEDINGS
 
  On December 18, 1991, the 1991 Class Action complaint was filed in the United
States District Court for the Northern District of Georgia, Atlanta Division
which consolidated and amended several class action lawsuits previously filed
against KnowledgeWare in October 1991. The 1991 Class Action was a class action
lawsuit alleging violations of Sections 20 and 10(b) of the Exchange Act and
Rule 10b-5 under the Exchange Act. In summary, the complaint alleged that
KnowledgeWare misrepresented or failed to disclose material facts which would
have a material adverse impact on KnowledgeWare or approved such
misrepresentations and omissions. The complaint sought compensatory damages and
reimbursements for the plaintiffs' fees and expenses. On January 26, 1994,
KnowledgeWare entered into and the District Court preliminarily approved the
Settlement Agreement. By entering into the settlement, KnowledgeWare did not
admit the allegations in the suit and, to the contrary, denied any wrongdoing.
The Settlement Agreement, which received final court approval in April 1994,
required a cash payment of $1,750,000, all of which was paid by KnowledgeWare's
insurance carrier, and the issuance by KnowledgeWare of the Warrants, which
allow the holders to acquire an aggregate of 500,000 shares of KnowledgeWare's
Common Stock at a price of $17.50 per share. The Warrants are exercisable for a
period of three years from June 9, 1994 (the date of issuance). On August 30,
1994, the plaintiffs in the 1991 Class Action filed the Motion. In the Motion,
the plaintiffs allege that the proposed business combination between
KnowledgeWare and Sterling and the announcement by KnowledgeWare that it
modified its accounting policy for revenue recognition and restated financial
results for the first three quarters of fiscal year 1994 resulted in a
substantially reduced value of the Warrants available to the plaintiffs under
the Settlement Agreement. Accordingly, the plaintiffs moved the District Court
for a decree of specific performance of the terms of the Settlement Agreement
entailing the delivery of new warrants of equivalent value to the original
value of the Warrants, and for a preliminary injunction of the consummation of
any business combination between KnowledgeWare and Sterling, pending compliance
by KnowledgeWare with the terms of the Settlement Agreement. Alternatively, the
plaintiffs moved for a declaration that the Warrant Agreement set forth in the
Settlement Agreement was the product of fraud and for an award to the
plaintiffs of the appropriate measure of damages.
 
  On August 30 and 31, 1994, and September 12, 22 and 23, 1994, the 1994 Class
Action Suits were filed against KnowledgeWare in the United States District
Court for the Northern District of Georgia, Atlanta
 
                                       24
<PAGE>
 
Division. Each of the 1994 Class Action Suits is purportedly a class action
lawsuit variously alleging violations of Sections 20 and 10(b) of the Exchange
Act, and Rule 10b-5 under the Exchange Act. The alleged factual basis
underlying the 1994 Class Action Suits and the relief sought therein is the
plaintiffs' allegations that KnowledgeWare and the individual defendants
actively misrepresented or failed to disclose the actual financial condition of
KnowledgeWare throughout fiscal year 1994 and that the value of the
KnowledgeWare Common Stock was artificially inflated as a result of
misrepresentations or failures to disclose. Each of the 1994 Class Action Suits
seeks compensatory damages and reimbursement for the plaintiffs' fees and
expenses.
 
  On September 9, 1994, the Ecta Suit was filed against KnowledgeWare in the
Southern District of Iowa, Central Division. The Ecta Suit is a lawsuit
alleging violations of Section 10(b) of the Exchange Act, Rule 10b-5 under the
Exchange Act, Section 12(2) of the Securities Act, violation of the Iowa Blue
Sky Laws (Iowa Stat. Ann. (S)502.502), fraud and breach of contract. The
alleged factual basis underlying the Ecta Suit arises in connection with the
purchase by KnowledgeWare of substantially all of the assets of ClearAccess
Corporation (now known as Ecta Corporation) and Fairfield Software, inc. (now
known as Fairfield Development, Inc.) pursuant to the Acquisition Agreement.
The plaintiffs allege that KnowledgeWare and the individual defendants
misrepresented or failed to disclose the actual financial condition of
KnowledgeWare, that the value of the KnowledgeWare Common Stock was
artificially inflated as a result of such misrepresentations or failures to
disclose and that KnowledgeWare has breached certain warranties,
representations and covenants made in the Acquisition Agreement. The Ecta Suit
seeks compensatory damages, rescission of the Acquisition Agreement and/or the
sale of KnowledgeWare's securities issued pursuant thereto, punitive damages,
prejudgment interest, and reimbursement of attorneys' fees and costs.
 
  Losses, claims, liabilities, judgments, costs or expenses (including amounts
paid in settlement) of KnowledgeWare, Sterling or Merger Sub resulting from
these Actions will result in claims for indemnification to be satisfied from
the Escrowed Shares. As of October 26, 1994, KnowledgeWare estimates that
approximately $55,000 of costs and expenses have been incurred since August 31,
1994 with respect to these Actions. See "Summary--Recent Developments," "The
Merger Agreement--Indemnification of Sterling; Escrow," "The Escrow Agreement"
and "Certain Information Regarding KnowledgeWare--Legal Proceedings." Neither
KnowledgeWare nor Sterling is able to quantity the amount of losses, claims,
liabilities, judgments, costs or expenses likely to be paid from the Escrowed
Shares in connection with such Actions because such Actions have only recently
been filed, discovery has not commenced and KnowledgeWare and its advisors
cannot estimate the loss, if any, that will result from the ultimate
resolutions of such Actions. There can be no assurance that additional Actions
will not arise in the future that will result in a claim for indemnification to
be satisfied from the Escrowed Shares. In addition, there can be no assurance
that the proceeds from any applicable insurance and the value of the Escrowed
Shares will be sufficient to cover all losses, claims, liabilities, judgments,
costs or expenses in connection with Actions for which Sterling is entitled to
be indemnified. See "The Escrow Agreement."
 
INTERESTS OF CERTAIN AFFILIATES OF KNOWLEDGEWARE IN THE MERGER
 
  Certain affiliates of KnowledgeWare could be deemed to have an interest in
the Merger. Sterling has agreed to assume all outstanding options granted under
the KnowledgeWare Stock Option Plans. Sterling has also agreed that all rights
to indemnification and advancement of expenses existing in favor of the current
and former directors and officers of KnowledgeWare, to the extent provided
under KnowledgeWare's Articles of Incorporation, Bylaws and indemnification
agreements as of the date of the Merger Agreement, shall survive for at least
six years following the Merger, and Sterling has agreed to indemnify and
advance expenses to such persons to the full extent as would be required of or
permitted by KnowledgeWare. In addition, Sterling has agreed to cause
KnowledgeWare to maintain, for three years following the Merger,
KnowledgeWare's current directors' and officers' liability insurance, or
comparable insurance, with respect to matters occurring prior to the Merger.
KnowledgeWare has received a binder for a one year directors' and officers'
liability insurance policy with an aggregate limit comparable to that under
KnowledgeWare's prior policy that will convert to a three year "run-off" policy
if the Merger is consummated during the policy term.
 
                                       25
<PAGE>
 
The premium for this policy is $600,000. Sterling and KnowledgeWare have agreed
that the payment of such premium by KnowledgeWare shall satisfy Sterling's
obligation to obtain such liability insurance. See "Summary--The Merger" and
"The Merger--Interests of Certain Persons in the Merger."
 
  Following the Effective Time, Sterling will enter into a three year
Consultation Agreement with Mr. Tarkenton pursuant to which he will be
compensated by Sterling at the rate of $300,000 per year plus the reimbursement
of certain expenses. In addition, following the Effective Time, Mr. Tarkenton
will be added to the Sterling Board of Directors pursuant to which he will be
entitled to Sterling's customary outside directors' fees, currently $22,500 per
annum and $2,500 for each meeting attended. See "Summary--The Merger" and "The
Merger--Interests of Certain Persons in the Merger."
 
UNCERTAINTY OF FEDERAL INCOME TAX CONSEQUENCES
 
  The parties to the Merger have not and do not intend to seek a ruling from
the IRS as to the U.S. federal income tax consequences of the Merger. See "The
Merger--Certain Federal Income Tax Consequences" for a general discussion of
the expected U.S. federal income tax consequences of the Merger (the "Tax
Discussion"). The Tax Discussion is based upon the Opinions of Jackson &
Walker, counsel for Sterling, and Hicks, Maloof & Campbell, counsel for
KnowledgeWare. There can be no assurance that the IRS will not challenge the
conclusions set forth in the Opinions and the Tax Discussion. KnowledgeWare
stockholders may have to incur the costs of administrative and court
proceedings in an effort to sustain positions taken by them based on such
conclusions, some or all of which may not be sustained. If not so sustained,
KnowledgeWare and KnowledgeWare stockholders may be liable for additional tax,
interest and penalties with respect to the Merger.
 
  The Opinions are based on the Code, the Treasury Regulations, administrative
rulings and pronouncements of the IRS, and judicial decisions, all as of the
date of the Opinions. There can be no assurance that such authorities will not
be changed prior to the Effective Time or, retroactively, after the Effective
Time. Additionally, because the law is not entirely clear as to certain issues
affecting the U.S. federal income tax consequences of the Merger, the
conclusions described in the Tax Discussion and set forth in the Opinions have
generally been limited by counsel to a "more likely than not" standard.
 
  The Merger Agreement and the Escrow Agreement have been structured in a
manner that is expected to result in the KnowledgeWare stockholders being
treated as the owners, for U.S. federal income tax purposes, of the Escrowed
Shares from the Effective Time. Accordingly, each KnowledgeWare stockholder
will recognize gain or loss upon return to, or sale on behalf of, Sterling of
any Escrowed Shares in an amount equal to the difference between the then value
of such Escrowed Shares and the KnowledgeWare stockholder's adjusted tax basis
in such shares. KnowledgeWare stockholders generally will not be entitled to
claim a loss based upon the value of the shares returned to, or sold on behalf
of, Sterling. Instead, the adjusted tax basis in their remaining shares of
Sterling Common Stock will be increased by the then value of the shares
returned or sold. Notwithstanding the foregoing, although no authorities
directly so hold, a KnowledgeWare stockholder who has previously disposed of
all such remaining shares should recognize a capital loss equal to the value of
the Escrowed Shares returned to, or sold on behalf of, Sterling. Dividends on
Escrowed Shares, which, pursuant to the Escrow Agreement are required to be
distributed to the KnowledgeWare stockholders, will generally be taxable to
them as ordinary income. Thus, former KnowledgeWare stockholders may incur tax
on gain attributable to Escrowed Shares even though the stockholders never
become entitled to actually receive the shares.
 
                                       26
<PAGE>
 
                              THE SPECIAL MEETING
 
GENERAL
 
  This Proxy Statement/Prospectus is being furnished to holders of
KnowledgeWare Common Stock in connection with the solicitation of proxies by
the KnowledgeWare Board of Directors for use at the Special Meeting to be held
on November   , 1994 at the Hotel Nikko, 3300 Peachtree Road, Atlanta, Georgia,
commencing at 10:00 a.m., local time, and at any adjournment or postponement
thereof.
 
  This Proxy Statement/Prospectus and the accompanying proxy card are first
being mailed to stockholders of KnowledgeWare on or about October   , 1994.
 
MATTERS TO BE CONSIDERED AT THE SPECIAL MEETING
 
  At the Special Meeting, holders of KnowledgeWare Common Stock will consider
and vote upon (i) a proposal to approve and adopt the Merger Agreement, (ii) if
in the discretion of management of KnowledgeWare it is necessary to adjourn the
Special Meeting for the purpose of soliciting additional proxies, a proposal to
adjourn the Special Meeting, and (iii) such other matters as may properly be
brought before the Special Meeting.
 
BOARD OF DIRECTORS RECOMMENDATION
 
  The Board of Directors of KnowledgeWare has unanimously approved the Merger
Agreement and unanimously recommends a vote FOR approval and adoption of the
Merger Agreement by the stockholders of KnowledgeWare and FOR the adjournment
of the meeting to solicit additional proxies, if necessary.
 
RECORD DATE; VOTING AT THE SPECIAL MEETING
 
  The KnowledgeWare Board of Directors has fixed October 6, 1994 as the record
date for the determination of KnowledgeWare stockholders entitled to notice of
and to vote at the Special Meeting. Accordingly, only holders of record of
KnowledgeWare Common Stock on that record date will be entitled to notice of
and to vote at the Special Meeting. As of October 6, 1994, there were
14,571,888 shares of KnowledgeWare Common Stock outstanding, held by
approximately 542 holders of record. Each holder of record of shares of
KnowledgeWare Common Stock on the record date is entitled to cast one vote per
share on the proposal to approve and adopt the Merger Agreement, and any other
matters properly submitted for the vote of KnowledgeWare stockholders,
exercisable in person or by properly executed proxy, at the Special Meeting.
The presence, in person or by properly executed proxy, of the holders of
KnowledgeWare Common Stock representing a majority of the votes entitled to be
cast at the Special Meeting is necessary to constitute a quorum at the Special
Meeting.
 
  The approval and adoption by the KnowledgeWare stockholders of the Merger
Agreement will require the affirmative vote of the holders of a majority of the
outstanding shares of KnowledgeWare Common Stock entitled to vote at the
Special Meeting as of the record date. The approval and adoption of a motion to
adjourn the Special Meeting in order to solicit additional proxies will require
the affirmative vote of a majority of shares represented in person or by proxy
at the Special Meeting. Under applicable law, in determining whether the
proposals have received the requisite number of affirmative votes, abstentions
and broker non-votes will have the same effect as a vote against such proposal.
 
  Certain directors, executive officers and/or stockholders of KnowledgeWare,
who as of August 31, 1994 beneficially owned in the aggregate approximately
19.1% of the outstanding KnowledgeWare Common Stock, have entered into
agreements obligating them to vote in favor of the approval and adoption of the
Merger Agreement, and have granted to Sterling irrevocable proxies to vote
their shares in such manner in the event such stockholders fail to vote as
required. See "The Stockholder Agreements." Each such stockholder has also
agreed not to sell, transfer or encumber any of the shares of KnowledgeWare
Common
 
                                       27
<PAGE>
 
Stock now owned or acquired during the term of the Stockholder Agreement by
such stockholder unless the transferee agrees to be bound by the terms of the
Stockholder Agreement. In addition, all other directors and executive officers
of KnowledgeWare, who beneficially own in the aggregate less than one per cent
of the outstanding KnowledgeWare Common Stock, have indicated that they will
vote all such shares in favor of the approval and adoption of the Merger
Agreement. As of the date of this Proxy Statement/Prospectus, Sterling owned
one share of KnowledgeWare Common Stock. Sterling also holds warrants to
purchase 1,405,000 shares of KnowledgeWare Common Stock. See "The Merger--
Interests of Certain Persons in the Merger" and "The Stockholder Agreements."
 
VOTING AND REVOCATION OF PROXIES
 
  All shares of KnowledgeWare Common Stock which are entitled to vote and are
represented at the Special Meeting by properly executed proxies received prior
to or at the Special Meeting, and not revoked, will be voted at the Special
Meeting in accordance with the instructions indicated on such proxies. If no
instructions are indicated, such proxies will be voted (i) FOR approval and
adoption of the Merger Agreement and (ii) if in the discretion of management of
KnowledgeWare it is necessary to adjourn the Special Meeting, FOR adjournment
to solicit additional proxies.
 
  Approval of the proposal to adjourn the meeting to solicit additional proxies
will provide KnowledgeWare the opportunity, if sufficient votes have not been
received to approve the Merger Agreement as of the scheduled date for the
Special Meeting, to adjourn the meeting and solicit additional proxies on the
proposal to approve the Merger Agreement without calling a new meeting and
providing a new record date.
 
  If any other matters are properly presented at the Special Meeting for
consideration the persons named in the enclosed form of proxy and acting
thereunder will have discretion to vote on such matters in accordance with
their best judgment.
 
  Any proxy given pursuant to this solicitation may be revoked by the person
giving it at any time before it is voted. Proxies given by any stockholder may
be revoked by (i) filing with the Secretary of KnowledgeWare at or before the
taking of the vote at the Special Meeting, a written notice of revocation
bearing a later date than the proxy, (ii) duly executing a later dated proxy
relating to the same shares and delivering it to the Secretary of KnowledgeWare
before the taking of the vote at the Special Meeting or (iii) attending the
Special Meeting and voting in person (although attendance at the Special
Meeting will not in and of itself constitute a revocation of a proxy). Any
written notice of revocation or subsequent proxy by KnowledgeWare stockholders
should be sent so as to be delivered to KnowledgeWare, 3340 Peachtree Road,
N.E., Atlanta, Georgia 30326, Attention: Secretary, or hand delivered to the
Secretary of KnowledgeWare at or before the taking of the vote at the Special
Meeting.
 
  All expenses of this solicitation, excluding the cost of mailing this Proxy
Statement/Prospectus and the filing fee paid to the Commission in connection
with filing the Registration Statement (which will be shared equally by
Sterling and KnowledgeWare), will be paid by the party incurring the expense.
In addition to solicitation by use of the mails, proxies may be solicited by
the respective directors, officers and employees of KnowledgeWare, in person or
by telephone, telegram or other means of communications. Such directors,
officers and employees will not be additionally compensated, but may be
reimbursed for reasonable out-of-pocket expenses in connection with such
solicitation. KnowledgeWare has retained Georgeson & Company, Inc., at an
estimated cost of $7,000 plus reimbursement of expenses, to assist in the
solicitation of proxies from brokers, nominees, institutions and individuals on
its behalf. Arrangements will also be made with custodians, nominees and
fiduciaries for forwarding of proxy solicitation materials to beneficial owners
of shares held of record by such custodians, nominees and fiduciaries, and
KnowledgeWare will reimburse such custodians, nominees and fiduciaries for
reasonable expenses incurred in connection therewith.
 
  KNOWLEDGEWARE STOCKHOLDERS SHOULD NOT SEND ANY STOCK CERTIFICATES WITH THEIR
PROXY CARDS.
 
                                       28
<PAGE>
 
                                   THE MERGER
 
GENERAL
 
  The Merger Agreement provides for a business combination between Sterling and
KnowledgeWare in which Merger Sub would be merged with and into KnowledgeWare
and the holders of KnowledgeWare Common Stock would be issued shares of
Sterling Common Stock. The discussion in this Proxy Statement/Prospectus of the
Merger and the description of the Merger's principal terms are subject to and
qualified in their entirety by reference to the Merger Agreement, a copy of
which is attached to this Proxy Statement/Prospectus as Appendix A and which is
incorporated herein by reference.
 
BACKGROUND OF THE MERGER
 
  Throughout its history, Sterling has maintained an active program of
expansion through the acquisition of products and businesses. Since 1983,
Sterling has acquired over 20 businesses, in addition to making numerous
product acquisitions. As part of its acquisition activities, Sterling has
observed KnowledgeWare over a period of several years and has recognized that
KnowledgeWare's products, technologies and marketing and distribution channels
are complementary to those of Sterling's existing enterprise software business.
 
  In late April and early May 1994, KnowledgeWare management, in reviewing its
performance for the quarter ended March 31, 1994, and analyzing its ongoing
operations, concluded that existing cash balances would need to be supplemented
by additional cash from outside sources in order to fund anticipated cash and
capital requirements. KnowledgeWare began negotiations to establish an expanded
line of credit, which resulted in KnowledgeWare and IBM Credit entering into
the Loan Agreement on June 23, 1994. KnowledgeWare also began exploring the
feasibility of software leasing arrangements and engaged Alex. Brown to seek
investors interested in making a capital investment of at least $10 million
through a placement of either common stock or subordinated debt. In May and
June 1994, Alex. Brown arranged for several prospective investors to meet with
management and explore the possibility of a direct investment. Liquidity issues
and the need for additional capital from outside sources were discussed with
the Board of Directors at its regular meeting on May 5, 1994.
 
  On July 1, 1994, KnowledgeWare announced that it anticipated it would have a
significant loss from operations during the quarter ended June 30, 1994. Such a
loss violated financial covenants in the Loan Agreement, for which
KnowledgeWare received a waiver until September 30, 1994. The anticipated loss
raised management's concern that raising at least $10 million in a private
transaction was no longer a viable alternative. During the first week of July,
Alex. Brown commenced a new engagement to seek potential candidates for a
business combination.
 
  On June 9, 1994, senior members of Sterling's management met with a
representative of Broadview Associates, L.P. ("Broadview"), Sterling's
financial advisor, to discuss possible acquisitions, including KnowledgeWare.
On July 7, 1994, a representative of Alex. Brown contacted Sterling L.
Williams, President and Chief Executive Officer of Sterling, and suggested that
Mr. Williams contact KnowledgeWare regarding a possible business combination.
 
  An initial meeting between Mr. Williams and Francis A. Tarkenton, Chairman
and Chief Executive Officer of KnowledgeWare, and other members of
KnowledgeWare's executive management was held on July 9, 1994. At that meeting,
the two parties discussed whether KnowledgeWare and Sterling shared a mutual
interest in considering a possible business combination. Based on those
discussions, a more in depth meeting exploring the feasibility and benefits of
a business combination was planned for July 18, 1994. A confidentiality
agreement was signed on July 15 in preparation for that second meeting.
 
  KnowledgeWare's Board of Directors met on July 12, 1994, to review the status
of Alex. Brown's efforts. Management and representatives of Alex. Brown
reviewed a list of companies that Alex. Brown had contacted
 
                                       29
<PAGE>
 
regarding a possible business combination and discussed the status of those
contacts where there was some level of continuing interest. The KnowledgeWare
Board instructed management to continue pursuing discussions with the
interested candidates.
 
  On July 18, 1994 and July 19, 1994, a series of more detailed discussions
ensued between the management teams of Sterling and KnowledgeWare. Executives
of each company presented to the other an overview of the operations and
product strategies of their respective companies. The meetings ended with a
plan to meet in Atlanta on July 21, 1994, to begin more detailed discussions.
From July 21, 1994 through July 30, 1994, the senior management teams and
financial advisors of Sterling and KnowledgeWare met to further review
operational, marketing and financial issues and to conduct formal due diligence
reviews of each other.
 
  On July 27, 1994, Sterling made its initial proposal to acquire KnowledgeWare
in a transaction to be accounted for as a pooling of interests, and the parties
began to negotiate price. A series of meetings that day between the financial
advisors and subsequently between Mr. Williams and Mr. Tarkenton resulted in a
proposal that Sterling acquire KnowledgeWare at the Original Exchange Ratio of
.2983 of a share of Sterling Common Stock for each share of KnowledgeWare
Common Stock outstanding, which would be equivalent to $8.75 per share of
KnowledgeWare Common Stock based on a value for Sterling Common Stock of
$30.25, the closing price of Sterling Common Stock on the NYSE on July 26,
1994. The proposal was subject to completion of due diligence and Board
approval by each company.
 
  On the night of July 27, 1994, Sterling delivered to KnowledgeWare initial
drafts of a merger agreement, stock option agreement and stockholder
agreements. Negotiations with respect to the terms of such documents continued
until July 29, 1994.
 
  On July 28, 1994, KnowledgeWare management and representatives of Alex. Brown
briefed the KnowledgeWare Board of Directors on the status of discussions. The
Board was presented with an overview of the business and prospects of Sterling,
and analyses concerning the potential fit of the two companies, including
operational and other benefits that could result from such a combination. At
that meeting, Alex. Brown reported that from its contacts with other companies,
no company, other than Sterling, had pursued more than exploratory discussions
and that no company had given an indication as to price or value for
KnowledgeWare within the range reflected by Sterling's proposal. The directors
further discussed the strategic risks and benefits of a potential combination
with Sterling, and then authorized Mr. Tarkenton to negotiate a definitive
agreement for presentation to the Board.
 
  The KnowledgeWare Board of Directors held a special meeting on July 31, 1994
to consider the Initial Merger Agreement and the transactions contemplated
thereby. At such meeting, members of KnowledgeWare's senior management,
together with its legal and financial advisors, reviewed with the KnowledgeWare
Board of Directors, among other things, the background of the proposed
transaction, the potential benefits of this transaction, including the benefits
to its stockholders of a stock-for-stock tax-free business combination, a
summary of the due diligence findings regarding Sterling, financial and
valuation analyses of the transaction and the terms of the proposed agreements.
In addition, Alex. Brown reviewed its opinion that as of such date the Original
Exchange Ratio was fair from a financial point of view to the holders of
KnowledgeWare Common Stock. After extensive consideration, the KnowledgeWare
Board of Directors unanimously approved the transaction.
 
  Both before and after execution of the Initial Merger Agreement,
representatives of KnowledgeWare and Sterling discussed manners in which
Sterling could assist KnowledgeWare in its need for working capital in excess
of its borrowings under the Loan Agreement. The representatives discussed the
possibility of Sterling guaranteeing a loan by a third party or making a direct
loan to KnowledgeWare. Subsequent to the execution of the Initial Merger
Agreement the representatives also discussed the possibility of Sterling
acquiring the interest of IBM Credit under the Loan Agreement.
 
 
                                       30
<PAGE>
 
  Following execution of the Initial Merger Agreement, KnowledgeWare continued
to work on finalizing its fourth quarter and year-end financial results. During
the course of its 1994 fiscal year end audit, KnowledgeWare and its independent
auditors undertook an evaluation of KnowledgeWare's credit procedures for its
third party resellers and its fiscal 1994 collection experience on reseller
accounts receivable. This review led KnowledgeWare, in consultation with its
independent auditors, to reevaluate KnowledgeWare's accounting policy for
revenue recognition on sales to third party resellers and to discuss in
meetings during the week of August 15 with the Audit Committee of
KnowledgeWare's Board of Directors the possible modification of its accounting
policy on the recognition of revenue for sales to resellers. The effect of such
a modification of accounting policy would be retroactive, resulting in a
restatement of first, second and third quarter revenues for fiscal year 1994
and a lower level of fourth quarter revenue and resulting in the existence of a
shortfall in eligible receivables under the Loan Agreement with IBM Credit and
creating the possibility that Sterling could terminate the Initial Merger
Agreement.
 
  On August 24, 1994, Mr. Williams, other Sterling executives and a legal
advisor and Mr. Tarkenton, other KnowledgeWare executives, legal advisors, and
a representative of KnowledgeWare's independent auditors met in Chicago to
review the status of KnowledgeWare's 1994 audit. At this meeting, the parties
discussed issues related to revenue recognition for KnowledgeWare's reseller
program, the status of the audit with respect to receivables from integrators,
the potential for restatement of previously reported 1994 quarterly results,
and the potential for a significant loss for the year. At the conclusion of the
day, the parties agreed to continue discussions the following day. On the
following day, Messrs. Williams and Tarkenton discussed revising the
transactions contemplated under the Initial Merger Agreement, in light of
preliminary information relating to KnowledgeWare's poor collection experience
with reseller accounts receivable and the preliminary fourth quarter and fiscal
1994 results. The revised terms related to a reduction in the number of
Sterling shares to be issued in the Merger for each share of KnowledgeWare
Common Stock. Also, to address concern over KnowledgeWare's exposure to certain
legal claims that might be asserted following execution of the Merger
Agreement, the parties discussed providing for certain of the Sterling shares
otherwise issuable as consideration in the Merger being held in an escrow
arrangement to provide a source of funds to respond if any claims were
asserted. The parties agreed, however, that KnowledgeWare's 1994 audit would
need to be completed before the parties could agree to any such revised terms.
KnowledgeWare did not contact other parties (including parties that had
previously shown interest in a possible transaction with KnowledgeWare) after
discussions commenced with Sterling regarding revising the terms of the
transaction contemplated by the Initial Merger Agreement, because any such
activity initiated by KnowledgeWare could have been alleged by Sterling to
constitute a breach of KnowledgeWare's "no-shop" agreement under the Initial
Merger Agreement. The Initial Merger Agreement contained a "fiduciary out"
provision similar to the provision in the Merger Agreement summarized in "The
Merger Agreement--No Solicitation of Transactions" below, under which
KnowledgeWare could consider and respond to any proposal initiated by a third
party. Following public disclosure of KnowledgeWare's 1994 fiscal year loss and
modification of accounting policy, no third party had substantive contacts with
KnowledgeWare or Alex. Brown regarding a business combination with
KnowledgeWare.
 
  On August 27, 1994, Sterling delivered to KnowledgeWare initial drafts of a
revised merger agreement, including provisions for indemnification of Sterling
pursuant to an escrow arrangement, a stock option agreement and stockholder
agreement, and the parties commenced negotiations on the terms of such
agreements. At the same time, the parties discussed the possibility of Sterling
providing supplemental short term loans to KnowledgeWare. After consideration
of the limitations on borrowing under KnowledgeWare's loan from IBM Credit,
Sterling and KnowledgeWare discussed the possibility that Sterling approach IBM
Credit to purchase KnowledgeWare's indebtedness. At the same time, the parties
discussed the possibility of Sterling providing up to an additional $7 million
of financing to KnowledgeWare.
 
  On August 30, 1994, KnowledgeWare announced that it expected a significant
loss for its fiscal year and that it anticipated restating previously reported
financial results for prior quarters in fiscal 1994. KnowledgeWare also
announced that it was negotiating possible revisions to the Initial Merger
Agreement and that it would require additional waivers of non-compliance with
covenants under the Loan Agreement with IBM Credit and additional working
capital from IBM Credit or Sterling.
 
  Also on August 30, 1994, the Board of Directors of KnowledgeWare held a
special meeting to discuss the possibility of revising the terms of the
proposed merger and of Sterling acquiring the interest of IBM Credit under the
Loan Agreement and increasing the amount available thereunder. At the meeting,
members of KnowledgeWare's senior management, together with its legal and
financial advisors, reviewed with the KnowledgeWare Board of Directors, among
other things, the status of the auditors' review of KnowledgeWare's year-end
financial results, the discussions with Sterling, KnowledgeWare's cash flow
situation, the failure of any other interested party to contact either
KnowledgeWare or Alex. Brown regarding a possible business combination or
investment in KnowledgeWare, the status of discussions with IBM Credit
 
                                       31
<PAGE>
 
and the revisions being negotiated to the Initial Merger Agreement, including
the proposed terms of an escrow agreement. Alex. Brown reviewed with the
KnowledgeWare Board of Directors the material facts that had changed since the
Board had approved the Initial Merger Agreement.
 
  Following the August 30, 1994 Board meeting, the Audit Committee of
KnowledgeWare's Board of Directors met to review preliminary fourth quarter and
year-end financial results, and the effect on prior quarters in fiscal 1994 of
adopting a modification of the accounting policy for sales to third party
resellers, which was also applicable to certain federal government integrators.
 
  Finally on August 30, 1994, KnowledgeWare management and advisors met with
Sterling management and advisors to continue negotiating terms of a revised
merger agreement, an escrow agreement and arrangements to substitute Sterling
for IBM Credit under, and to revise the terms of, the Loan Agreement.
 
  On August 31, 1994, KnowledgeWare completed its year end audit and the
managements of KnowledgeWare and Sterling agreed to the revised terms of the
Merger Agreement, including a revised exchange ratio of .1653 and the escrow of
20% of the shares to be received by KnowledgeWare stockholders, the terms of
the Stock Option Agreement, the terms of the Escrow Agreement, the terms of the
Amended Loan Agreement and the warrants to be issued to Sterling in connection
with the execution of the Amended Loan Agreement and upon subsequent
advancements thereunder. The terms of all these agreements were the result of
arm's-length negotiations between the managements of KnowledgeWare and
Sterling. With reference to the escrow of 20% of the shares to be received by
KnowledgeWare stockholders, the Board of Directors of KnowledgeWare considered,
among other factors: (i) the fact that the 20% level was determined by arm's-
length negotiations between the managements of KnowledgeWare and Sterling; (ii)
the fact that losses, claims, liabilities, judgments, costs and expenses that
may be incurred by KnowledgeWare, Sterling or Merger Sub in connection with
Actions with respect to which Sterling is entitled to indemnification would
result in claims to be satisfied from the Escrowed Shares; and (iii) the fact
that, in the event that losses, claims, liabilities, judgments, costs and
expenses with respect to which Sterling is entitled to indemnification exceed
the value of the Escrowed Shares, such excess would not be borne solely by the
KnowledgeWare stockholders, while if such losses, claims, liabilities,
judgments, costs and expenses do not exceed the value of the Escrowed Shares,
remaining Escrowed Shares would be distributed to the KnowledgeWare
stockholders.
 
  The KnowledgeWare Board of Directors held a special meeting on August 31,
1994 to review the 1994 fiscal year audited financial statements, the form of
the Annual Report on Form 10-K for the 1994 fiscal year, and to consider the
revised terms and conditions to the proposed merger agreement. At such meeting,
members of KnowledgeWare's senior management first reviewed the audited
financial statements in detail, and discussed the form of the Annual Report on
Form 10-K, and responded to questions posed by the Directors. The Board
unanimously approved the consolidated financial statements of KnowledgeWare for
the 1994 fiscal year and the filing of the Annual Report with the Commission.
The Board then reviewed and considered the revised terms of the proposed merger
agreement and the transactions contemplated thereby, including the proposed
exchange ratio of .1653 of a share of Sterling Common Stock for each share of
KnowledgeWare Common Stock, the creation of an escrow of 20% of the shares
otherwise issuable to KnowledgeWare stockholders to provide Sterling with
indemnification for certain contingencies, and the grant by KnowledgeWare of
the proposed option at an exercise price at $5.00 per share contemplated by the
stock option agreement to be entered into with Sterling. At the meeting, the
KnowledgeWare Board reviewed with members of senior management, and with
KnowledgeWare's legal and financial advisors, among other things, the
background and recent events relating to the proposed transaction, the impact
of the 1994 fiscal year financial results upon KnowledgeWare's alternatives,
the continued existence of benefits to the KnowledgeWare stockholders of the
proposed merger, and financial and valuation analyses of the transaction and
the terms of the proposed agreements. Alex. Brown reviewed its proposed opinion
that based upon the proposed terms of the various agreements, including the
provisions for Escrowed Shares, as of such date the Exchange Ratio in the
Merger was fair from a financial point of view to the holders of KnowledgeWare
 
                                       32
<PAGE>
 
Common Stock. After thorough consideration, the KnowledgeWare Board of
Directors unanimously approved the Merger Agreement and the Merger and the
related transactions. The Board then heard a report from members of senior
management as to the terms and conditions of the proposed assignment of the
Loan Agreement from IBM Credit to Sterling and the proposed modification to the
Loan Agreement from Sterling, including specifically the revisions to the
amount available under and the borrowing base computations, the interest rates
and the covenants and the number, exercise price, term and registration rights
of the warrants proposed to be issued in connection with amendment of and
borrowings under the loan. After discussion, the Board approved the Amended
Loan Agreement and the Warrant Agreement, authorized the issuance of the
warrants and the reservation for issuance of KnowledgeWare's Common Stock under
the warrants, and authorized senior management of KnowledgeWare to complete the
necessary actions related thereto. Although the Board considered and approved
the Merger Agreement and the Amended Loan Agreement at the same meeting and
considered each in light of the other, the two agreements were not conditioned
upon one another.
 
REASONS FOR THE MERGER; RECOMMENDATION OF THE KNOWLEDGEWARE BOARD OF DIRECTORS
 
  Sterling. The Board of Directors of Sterling believes that the terms of the
Merger Agreement are in the best interests of Sterling and its stockholders and
has unanimously authorized management to negotiate, execute and deliver the
Merger Agreement. In reaching its determination, the Sterling Board of
Directors consulted with Sterling management, as well as its financial and
legal advisors, and considered a number of factors, including, without
limitation, the following:
 
    (i) the two companies' enterprise software product lines are
  complementary with minimal overlap and consist of some of the best known
  products in the industry;
 
    (ii) the combined company's applications development suite of products
  will position the combined company as one of the leaders in that market;
 
    (iii) KnowledgeWare's products will provide Sterling an expanded presence
  in the client/server market with proven products;
 
    (iv) the combined company will have sales, distribution and support
  capabilities in almost all industrialized countries and a much stronger
  presence as an international concern;
 
    (v) KnowledgeWare will provide Sterling with additional marketing
  channels, including value added resellers and original equipment
  manufacturers;
 
    (vi) the combined company's product lines will provide Sterling's
  customers with complete applications development solutions covering
  planning, analysis, design and construction using an integrated set of CASE
  tools, as well as an object oriented development offering;
 
    (vii) the addition of KnowledgeWare's Legacy Workbench product will
  provide Sterling's existing customers with significant opportunities to
  reduce legacy maintenance costs;
 
    (viii) the combined company's products will offer Sterling an approach to
  revitalizing its customers' legacy systems, as well as provide a transition
  path to client/server computing for applications development;
 
    (ix) the belief of management of Sterling that customers desire
  "strategic vendors" who provide broad based solutions to their applications
  development and data center requirements;
 
    (x) the opportunities for economies of scale and operating efficiencies
  that could result from the Merger, particularly in terms of the integration
  of office facilities and support functions;
 
    (xi) the possibility that the combined company may not be able, in the
  short term, to integrate efficiently the businesses of the two companies
  and/or to identify and eliminate redundant costs; and
 
    (xii) the terms of the Merger Agreement, the Stock Option Agreement, the
  Stockholder Agreements and the Escrow Agreement.
 
  Although the issuance of shares of Sterling Common Stock in connection with
the Merger would have resulted in a dilution of earnings per share on a pro
forma basis for the most recent fiscal years (see "Pro Forma Combined Condensed
Financial Information"), Sterling management noted that such pro forma
 
                                       33
<PAGE>
 
analysis did not give effect to possible synergies that management of both
companies will seek to achieve following the Merger, and believes that any such
dilution is more than offset by the benefits of the Merger.
 
  Sterling and KnowledgeWare expect to achieve savings in operating costs
through the combination of the two companies, including savings resulting from
the elimination of duplicate facilities and the reduction of personnel.
 
  Because the enterprise software industry is highly competitive and because of
the inherent uncertainties associated with merging two large companies, there
can be no assurance that the combined entity will be able to realize the
economies of scale and operating efficiencies that Sterling and KnowledgeWare
currently expect to realize as a result of the consolidation of their
operations.
 
  In view of the wide variety of factors considered in connection with its
evaluation of the proposed Merger, the Board of Directors of Sterling did not
find it practicable to, and did not, quantify or otherwise attempt to assign
relative weights to the specific factors considered in reaching its
determination.
 
  KnowledgeWare. The Board of Directors of KnowledgeWare believes that the
terms of the Merger Agreement and the transactions contemplated thereby are
fair to and in the best interests of KnowledgeWare's stockholders, and, on that
basis, the KnowledgeWare Board of Directors unanimously adopted the Merger
Agreement and unanimously recommends approval thereof by the stockholders of
KnowledgeWare. In making that determination, the Board of Directors of
KnowledgeWare consulted with KnowledgeWare's management, its legal counsel and
its financial advisors and considered a number of factors including:
 
    (i) KnowledgeWare's current and prospective financial condition,
  including cash levels and near-term cash needs, the impact of increasing
  awareness of KnowledgeWare's financial condition on sales and collection of
  receivables, and the default under the Loan Agreement with IBM Credit, the
  need to obtain a waiver from IBM Credit and the need for additional working
  capital;
 
    (ii) the recent negative effect on price levels of KnowledgeWare's Common
  Stock as market awareness had grown regarding KnowledgeWare's financial
  condition, and the effect on such price levels following the announcement
  of the 1994 fiscal year-end results and the restatement of earnings for
  prior quarters in fiscal year 1994;
 
    (iii) prior inquiries to or discussions with third parties regarding
  possible significant equity investments in or business combinations with
  KnowledgeWare and the outcomes of those inquiries and discussions;
 
    (iv) the Exchange Ratio and recent trading prices for KnowledgeWare
  Common Stock and Sterling Common Stock;
 
    (v) the opportunity presented by the Merger to create a leading software
  and services company that provides greater financial and other resources
  for KnowledgeWare's products;
 
    (vi) information presented by Alex. Brown concerning the financial
  performance, condition, business operations and prospects of Sterling and
  KnowledgeWare;
 
    (vii) the terms and conditions of the Merger Agreement, the Stock Option
  Agreement and the Escrow Agreement;
 
    (viii) the specific terms and conditions of the proposed Sterling loan to
  KnowledgeWare and of the related Warrant Agreement and Registration Rights
  Agreement as reviewed with the Board at its August 31 special meeting, and
  the immediate availability of the Amended Loan Agreement; and
 
    (ix) the presentation and opinion of Alex. Brown (see "The Merger--
  Opinion of Financial Advisor").
 
 
                                       34
<PAGE>
 
  The Board of Directors of KnowledgeWare believes that the Merger offers the
opportunity to create a combined company with greater financial resources,
competitive strengths and business opportunities than would be possible for
KnowledgeWare alone.
 
  In view of the wide variety of factors considered in connection with its
evaluation of the proposed Merger, the Board of Directors of KnowledgeWare did
not find it practicable to, and did not, quantify or otherwise attempt to
assign relative weights to the specific factors considered in reaching its
determination.
 
  THE BOARD OF DIRECTORS OF KNOWLEDGEWARE UNANIMOUSLY RECOMMENDS THAT
KNOWLEDGEWARE STOCKHOLDERS VOTE TO APPROVE AND ADOPT THE MERGER AGREEMENT.
 
OPINION OF FINANCIAL ADVISOR
 
  In July 1994, KnowledgeWare retained Alex. Brown to provide investment
banking services in connection with the Merger. At a July 31, 1994 meeting of
the KnowledgeWare Board of Directors, Alex. Brown presented certain financial
analyses with respect to the acquisition of KnowledgeWare by Sterling, and
delivered its written opinion dated July 31, 1994 that the Original Exchange
Ratio was fair, from a financial point of view, to the holders of the common
stock of KnowledgeWare. On August 31, 1994 Alex. Brown was asked to render its
opinion as to the fairness, from a financial point of view, of the Exchange
Ratio to the holders of common stock of KnowledgeWare. Alex. Brown presented
certain financial and other analyses with respect to the acquisition to the
Board of Directors of KnowledgeWare at meetings held on August 30 and August
31, 1994 and indicated to the Board of Directors that it was prepared, after
review of final documentation relating to the Merger Agreement, the Stock
Option Agreement, the Escrow Agreement, the Amended Loan Agreement, the Warrant
Agreement and the Registration Rights Agreement, to deliver its opinion that,
based upon the various considerations set forth in the opinion, the Exchange
Ratio was fair, from a financial point of view, to the holders of common stock
of KnowledgeWare. In the course of such meetings, Alex. Brown noted the
possibility that no Escrowed Shares would ever become available to holders of
the common stock of KnowledgeWare, and indicated that it had performed its
analyses accordingly. Subsequent to the Board meeting, on August 31, 1994 Alex.
Brown delivered its written opinion that as of such date, the Exchange Ratio
was fair, from a financial point of view, to the holders of the common stock of
KnowledgeWare.
 
  The full text of Alex. Brown's written opinion with respect to the Exchange
Ratio, which sets forth, among other things, the assumptions made, matters
considered and limitations on the review undertaken, is attached as Appendix B
to this Proxy Statement/Prospectus. KnowledgeWare stockholders are urged to
read this opinion in its entirety. ALEX. BROWN'S OPINION IS DIRECTED ONLY TO
THE FAIRNESS OF THE EXCHANGE RATIO TO THE HOLDERS OF COMMON STOCK OF
KNOWLEDGEWARE FROM A FINANCIAL POINT OF VIEW AND DOES NOT CONSTITUTE A
RECOMMENDATION TO ANY KNOWLEDGEWARE STOCKHOLDER AS TO HOW SUCH STOCKHOLDER
SHOULD VOTE AT THE SPECIAL MEETING. THE DISCUSSION OF THE OPINION IN THIS PROXY
STATEMENT/PROSPECTUS IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO THE FULL TEXT
OF THE OPINION.
 
  In connection with its opinion, Alex. Brown reviewed certain publicly
available financial information concerning KnowledgeWare and Sterling, reviewed
KnowledgeWare's most current financial information, including information
regarding the capital needs of KnowledgeWare, and certain internal financial
analyses and other information furnished to Alex. Brown by KnowledgeWare and
Sterling. Alex. Brown held discussions with members of the senior managements
of KnowledgeWare and Sterling regarding the businesses and prospects of those
companies. In addition, Alex. Brown (i) reviewed the reported price and trading
activity for the common stock of both KnowledgeWare and Sterling, (ii) compared
certain financial information for both KnowledgeWare and Sterling with similar
information for certain companies in the software industry whose securities are
publicly traded, (iii) compared certain stock market information and valuations
for both KnowledgeWare and Sterling with similar information for certain
companies in the software industry whose securities are publicly traded, (iv)
reviewed the financial terms of certain recent
 
                                       35
<PAGE>
 
business combinations in the software industry, (v) reviewed the terms of the
Merger Agreement and certain related documents and (vi) performed such other
studies and analyses and considered such other factors as Alex. Brown deemed
appropriate. In particular, Alex. Brown performed certain of its analyses
relative to the value received by the holders of the common stock of
KnowledgeWare assuming that the Escrowed Shares are never received by the
holders of the common stock of KnowledgeWare. In addition, Alex. Brown noted
that its opinion was not dependent on the tax consequences of the Merger to the
KnowledgeWare stockholders.
 
  As described in its opinion, Alex. Brown did not independently verify the
information reviewed by it and for the purposes of the opinion assumed and
relied upon the accuracy, completeness and fairness thereof. With respect to
the information relating to the prospects of KnowledgeWare and Sterling, Alex.
Brown assumed that such information reflected the best currently available
judgments and estimates of the managements of KnowledgeWare and Sterling as to
the likely future financial performance of their respective companies and of
the combined company. In addition, Alex. Brown did not make nor was it provided
with an independent evaluation or appraisal of the assets of KnowledgeWare and
Sterling, nor did it make any physical inspection of the properties or assets
of KnowledgeWare or Sterling. Alex. Brown's opinion is based on market,
economic and other conditions as they existed and could be evaluated as of the
date of its opinion letter.
 
  In delivering its opinion to the KnowledgeWare Board, Alex. Brown prepared
and delivered to the KnowledgeWare Board certain written materials, which were
updated and finalized at the time of the delivery of the opinion (the "Alex.
Brown Materials"), and made an oral presentation to the Board of Directors at
its meetings held on August 30 and 31, 1994. The Alex. Brown Materials included
various valuation analyses, as well as other information and judgments,
relating to the proposed transaction, KnowledgeWare and Sterling, as well as
other data and analyses considered in connection with the opinion. The
following is a summary of portions of the Alex. Brown Materials delivered to
the Board of Directors of KnowledgeWare concerning the proposed Merger:
 
    Premiums Paid Analysis. Alex. Brown reviewed publicly available
  information for a number of completed merger and acquisition transactions
  involving publicly traded software companies since June 1989. The premiums
  were calculated based upon the transaction prices per share divided by the
  closing price per share four weeks and one day prior to the announcement of
  the transaction. Alex. Brown determined that these transactions were
  effected at a mean premium to the target's share price four weeks prior to
  the announcement and to the target's share price one day prior to the
  announcement of approximately 60% and 45%, respectively, versus transaction
  discounts based on share prices four weeks and one day prior to the
  announcement of the Initial Merger Agreement of approximately 1% and 20%,
  respectively, for the Merger. For purposes of this analysis, Alex. Brown
  considered the purchase price as calculated net of all of the Escrowed
  Shares.
 
    Stock Price Analysis. Alex. Brown reviewed and analyzed the performance
  of the per share market prices and the trading volume of KnowledgeWare
  Common Stock over two time periods, from October 31, 1989 to August 31,
  1994 and a shorter period from March 31, 1994 to August 31, 1994. Alex.
  Brown compared the movement of KnowledgeWare's daily closing prices during
  these periods with the movement of the Standard & Poor's industrial average
  for 500 stocks and composite indices of certain other publicly traded
  mainframe computer software companies and computer software tool companies.
  The companies included in the mainframe computer software index were
  Bachman Information Systems, Inc. ("Bachman Information"), Computer
  Associates International Inc. ("Computer Associates"), Compuware Corp.,
  Intersolv, Inc., LEGENT Corp. ("Legent"), Cognos, Inc., Micro Focus Group
  Plc ("Micro Focus Group"), and Sapiens International Corp. N.V. ("Sapiens
  Corp."). The companies included in the computer software tools index were
  Gupta Corp., Informix Corp., Oracle Systems Corp. ("Oracle Software"),
  Powersoft Corp., and Sybase, Inc.
 
 
                                       36
<PAGE>
 
    Alex. Brown noted that since 1992, KnowledgeWare has significantly
  underperformed all indices analyzed. Alex. Brown noted that KnowledgeWare's
  price per share prior to announcement of the Initial Merger Agreement
  reflected market concern regarding the financial condition of KnowledgeWare
  and KnowledgeWare's public announcement of expected results for the fiscal
  fourth quarter. In addition, Alex. Brown noted that KnowledgeWare's price
  per share on August 31, 1994 also reflected market concerns regarding the
  loss for the full fiscal year, the restatement of the financial results of
  prior periods and uncertainty regarding the Merger. Alex. Brown also noted
  that based on KnowledgeWare's next-twelve-months price to earnings ratio
  for the period March 1990 to August 1994, KnowledgeWare's stock had been
  trading at the high end of its historical range.
 
    Discussion of KnowledgeWare's Financial Condition. Alex. Brown noted that
  KnowledgeWare has reached low cash levels as a result of several factors,
  including collection issues related to receivables, expenditures in excess
  of planned levels coupled with a shortfall in planned revenues, severance
  payments due as a result of the recent restructuring, and acquisition
  payments related to the purchase of software distributors and software
  products. Market reaction to increasing awareness of KnowledgeWare's
  financial condition has further slowed both sales and collection of
  receivables, resulting in lower than planned cash levels, as well as
  negatively impacting the stock price, creating difficulties in raising
  additional equity capital on any terms. In addition, KnowledgeWare was in
  default under the Loan Agreement with IBM Credit, which was also
  undercollateralized given the level of reductions in accounts receivable
  relating to the restatement of revenues. Finally, Alex. Brown noted that
  management has expressed concerns regarding the Company's short-term
  operating viability and that Coopers & Lybrand, L.L.P., the auditors for
  the Company, were planning to include "going concern" language in their
  opinion.
 
    Analysis of Certain Other Publicly Traded Companies. Alex. Brown compared
  certain financial information relating to KnowledgeWare to corresponding
  data and ratios from a group of eight selected mainframe computer software
  companies and a group of five selected computer software tools companies.
  For purposes of this analysis, Alex. Brown considered the purchase price as
  calculated net of all of the Escrowed Shares. The mainframe computer
  software group included Bachman Information, Computer Associates, Compuware
  Corp., Intersolv, Inc., Legent, Cognos, Inc., Micro Focus Group, and
  Sapiens Corp. The computer software tools group included Gupta Corp.,
  Informix Corp.; Oracle Software, Powersoft Corp., and Sybase, Inc. Such
  financial information included, among other things, (i) market valuation;
  (ii) capitalization ratios; (iii) growth rates; (iv) operating performance;
  (v) ratios of market value as adjusted for debt and cash ("Aggregate
  Value") to revenues, earnings before interest expense and income taxes,
  each for the latest reported twelve month period as derived from publicly
  available information; and (vi) ratios of market value per share ("Equity
  Value") to earnings per share for the latest reported twelve month period
  as derived from publicly available information and to estimated earnings
  per share for calendar years 1994 and 1995 as reported by the Institutional
  Brokers Estimating System ("IBES").
 
    Alex. Brown noted that, on a trailing twelve month basis, the median
  multiple of Aggregate Value to revenues of the mainframe computer software
  companies was 1.2x and the median multiple of Aggregate Value to revenues
  of the computer software tools companies was 3.4x, versus a transaction
  multiple of 0.6x for the Aggregate Value of the Merger given Sterling's
  stock price as of August 31, 1994. Alex. Brown noted that, on a trailing
  twelve month basis, the median multiple of Aggregate Value to earnings
  before interest expense and income taxes of the mainframe computer software
  companies was 12.0x and the median multiple of Aggregate Value to earnings
  before interest expense and income taxes of the computer software tools
  companies was 23.0x. Alex. Brown noted that the mainframe computer software
  companies traded at a median multiple of expected calendar 1994 net income
  of 15.1x and that the computer software tools companies traded at a median
  multiple of expected calendar 1994 net income of 34.8x. KnowledgeWare ran
  at an operating deficit and was not profitable for the trailing twelve
  month period after adjusting for certain changes in accounting and
  restructuring charges, and
 
                                       37
<PAGE>
 
  therefore no meaningful comparison could be made for Aggregate Value to
  earnings before interest expense and income taxes or for the Equity Value
  of the Merger. Alex. Brown noted that the mainframe computer software
  companies traded at a median multiple of expected calendar 1995 net income
  of 11.6x and that the computer software tools companies traded at a median
  multiple of expected calendar 1995 net income of 26.8x, versus a
  transaction multiple of 14.0x for the Equity Value of the Merger. For
  purposes of this analysis, Alex. Brown considered the purchase price as
  calculated net of all the Escrowed Shares. Finally, Alex. Brown noted that
  the median multiples for the companies are an average of a broad range and
  are therefore subject to interpretation.
 
    Analysis of Selected Transactions. Alex. Brown reviewed the financial
  terms, to the extent publicly available, of seven recent acquisitions in
  the systems software industry. The seven transactions reviewed, in reverse
  chronological order of public announcement, were the following: the
  acquisition of (i) The ASK Group, Inc. by Computer Associates; (ii) CGI
  Informatique by International Business Machines Corp. ("IBM"); (iii)
  Systems Center by Sterling; (iv) Pansophic Systems, Inc. by Computer
  Associates; (v) On-Line Software International by Computer Associates; (vi)
  Index Technology Corp. by SAGE Software, Inc.; and (vii) Cullinet Software,
  Inc. by Computer Associates. Alex. Brown noted that these transactions were
  effected at a median multiple of Aggregate Value to revenues of 1.3x versus
  0.6x for the Merger. For purposes of this analysis, Alex. Brown considered
  the purchase price as calculated net of all of the Escrowed Shares. Alex.
  Brown further noted that the most recent transaction was completed at a
  multiple of 0.8x trailing twelve month revenues. Finally, Alex. Brown noted
  that generally the multiples of revenue paid have been dependent upon the
  degree of profitability of the target. KnowledgeWare was not profitable for
  the trailing twelve month period before the Merger.
 
    Independent Entity Analysis. Alex. Brown calculated the estimated
  earnings per share in fiscal year 1995 and fiscal year 1996 based upon
  projections by the management of KnowledgeWare. Alex. Brown then calculated
  a range of price per share values for KnowledgeWare at the end of fiscal
  1995 and fiscal 1996 by applying a range of earnings per share multiples of
  11.0 to 17.0 times projected net income per share, based on mainframe
  computer software companies. The range of discount rates used reflect
  different assumptions regarding the cost of capital of KnowledgeWare,
  currently approximately 20%, resulting in a range of $1.86 per share to
  $3.25 per share in fiscal year 1995, and $2.34 per share to $4.63 per share
  in fiscal year 1996. Alex. Brown then calculated the effect on
  KnowledgeWare's price per share of raising the additional capital necessary
  for KnowledgeWare to operate as an independent entity, resulting in a range
  of $1.59 per share to $2.78 per share in fiscal year 1995, and $2.01 per
  share to $3.96 per share in fiscal year 1996.
 
    Disaggregated Revenue Analysis. Alex. Brown determined that
  KnowledgeWare's revenues are composed of five separate product and service
  components. Alex. Brown valued each of these components based on trailing
  twelve month revenue multiples of publicly traded companies to determine an
  aggregate revenue valuation for KnowledgeWare, resulting in a valuation
  range of $4.39 to $9.63 per share. The midpoint of this range is $7.01.
  Alex. Brown then calculated the effect on KnowledgeWare's price per share
  of raising the additional capital necessary for KnowledgeWare to operate as
  an independent entity, which resulted in a per share value of $6.00. Alex.
  Brown noted that the revenue multiples for the publicly traded companies
  are highly influenced by these companies' profitability. Therefore, Alex.
  Brown noted that this valuation was overstated. KnowledgeWare ran at a
  significant operating deficit for the trailing twelve month period ending
  June 30, 1994, and therefore no meaningful comparison could be made for
  earnings before interest and income taxes.
 
    Contribution Analysis. Alex. Brown analyzed the contribution of each of
  KnowledgeWare and Sterling to certain income statement and balance sheet
  categories of the pro forma combined company, including revenues, operating
  income, net income, total assets, and net worth. This contribution analysis
  was then compared to the pro forma ownership percentage of KnowledgeWare's
  and Sterling's stockholders (adjusted to take into account options assumed
  to be exercised as a result of the Merger) in
 
                                       38
<PAGE>
 
  the pro forma combined company. Alex. Brown observed that KnowledgeWare
  stockholders are expected to own approximately 7.2% of the combined
  company's equity at the close of the Merger, and that Sterling stockholders
  are expected to own approximately 91.0% of the combined company's equity at
  the close of the Merger (with the balance of 1.8% of the combined company's
  equity representing the Escrowed Shares). For the period ended June 30,
  1994, it was estimated that KnowledgeWare and Sterling will have
  contributed approximately 22.2% and 77.8%, respectively, of the combined
  revenues, and approximately 29.3% and 70.7%, respectively, of the combined
  expenses. KnowledgeWare will not have contributed to the profitability of
  the combined company.
 
    Pro Forma Earnings Analysis. Alex. Brown analyzed the pro forma dilution
  or accretion to earnings per share of Sterling Common Stock for the fiscal
  years ending September 30, 1994, September 30, 1995 and September 30, 1996,
  assuming the effects of anticipated cost savings, write-downs of certain
  assets, and the potential impact on KnowledgeWare's business of having
  access to the resources of the combined company. This analysis indicated
  that the Merger would result in dilution to earnings per share of Sterling
  for the 1994, 1995 and 1996 fiscal years.
 
    Sterling Stock Price Analysis. Alex. Brown reviewed and analyzed the
  performance of the per share market prices and the trading volume of
  Sterling Common Stock over two time periods, from October 31, 1989 to
  August 31, 1994 and a shorter period from March 31, 1994 to August 31,
  1994. Alex. Brown compared the movement of Sterling's daily closing prices
  during these periods with the movement of the Standard & Poor's industrial
  average for 500 stocks and composite indices of certain other publicly
  traded mainframe computer software companies and computer software tools
  companies, which Alex. Brown deemed to be somewhat or substantially
  comparable to Sterling. The companies included in the mainframe computer
  software index were Bachman Information, Computer Associates, Compuware
  Corp., Intersolv, Inc., Legent, Cognos, Inc., Micro Focus Group, and
  Sapiens Corp. The companies included in the computer software tools index
  were Gupta Corp., Informix Corp., Oracle Software, Powersoft Corp., and
  Sybase, Inc.
 
    Alex. Brown determined that while Sterling's price per share has
  outperformed the S&P 500 and both groups of comparable company indices in
  the period October 31, 1989 to August 31, 1994, it has tracked in between
  the S&P 500 and the mainframe computer software companies index but below
  computer software tools companies index for the shorter time period between
  March 31, 1994 to August 31, 1994. Alex. Brown also calculated the average
  market prices for Sterling for the four month, three month, one month and
  ten day periods ended July 31, 1994. The average market price of Sterling
  Common Stock over such periods ranged from $27.13 per share to $34.50 per
  share.
 
    Sterling Valuation Analysis. Alex. Brown noted that Sterling's multiple
  of earnings as of August 31, 1994 was at a discount to the median of the
  mainframe computer software comparable companies. Alex. Brown calculated
  the estimated unlevered free cash flows that Sterling is expected to
  generate over a five year period from the fiscal year 1994 to fiscal year
  1999. The sum of the unlevered free cash flows for such five year period
  and the range of terminal asset values, which are based on a range of
  multiples of operating income reflecting Sterling's current valuation, were
  then discounted at a range of discount rates reflecting Sterling's current
  cost of capital of 13-15%. This analysis indicated a discounted cash flow
  valuation of approximately $29.46 to $77.58 per share. Alex. Brown also
  valued Sterling based on its disaggregated revenue, indicating a value of
  approximately $24.40 to $68.30 per share.
 
  Alex. Brown noted in the Alex. Brown Materials and in its oral presentation
to the Board of Directors of KnowledgeWare a number of factors in addition to
the empirical analysis which it considered in analyzing the fairness of the
proposed transaction. Among other things, Alex. Brown noted that the liquidity
issues relating to KnowledgeWare, the significant losses and lack of
predictable operating results of KnowledgeWare, the lack of predictability
concerning the future business prospects of KnowledgeWare and the frequency of
extraordinary charges, write-offs and restructurings of KnowledgeWare on a
historical basis led to the conclusion that an analysis of selected companies
and transactions did not provide significant
 
                                       39
<PAGE>
 
guidance concerning the fairness of the purchase price for KnowledgeWare.
Accordingly, Alex. Brown noted that it did not consider the Premiums Paid
Analysis, the Analysis of Certain Other Publicly Traded Companies, the Analysis
of Selected Transactions, or the Disaggregated Revenue Analysis to be
significant indicators of the fairness of the Exchange Ratio. Alex. Brown noted
that its judgments regarding the fairness of the transaction were influenced by
the uncertainties facing KnowledgeWare as a result of the restatement of
revenues, its liquidity problems and need for immediate additional cash
support, questions regarding the viability of its business prospects and
product lines and other factors giving rise to concerns regarding the long-term
viability of KnowledgeWare. This included concerns raised by management
regarding the ability of KnowledgeWare to meet its short-term cash operating
needs and indications by KnowledgeWare's independent auditors that a "going
concern" qualification would be required in their opinion on KnowledgeWare's
financial statements for the year ended June 30, 1994.
 
  The summary of the Alex. Brown Materials and presentation to the Board of
Directors set forth above does not purport to be a complete description of the
presentation by Alex. Brown to the Board of Directors of KnowledgeWare or the
analyses performed by Alex. Brown in arriving at its opinion. The preparation
of a fairness opinion involves a determination as to the most appropriate and
relevant methods of analysis and the application of these methods to the
particular circumstances and, therefore, such an opinion is not readily
susceptible to summary description. Alex. Brown believes that its analyses and
the summary set forth above must be considered as a whole and that selecting
portions of its analyses, without considering all analyses, or portions of the
above summary, without considering all factors and analyses, could create an
incomplete view of the process underlying the analyses set forth in the Alex.
Brown Materials and in the opinion. The analyses performed by Alex. Brown are
not necessarily indicative of actual values or future results, which may be
significantly more or less favorable than those suggested by such analyses.
Additionally, analyses relating to the value of a business do not purport to be
appraisals or to reflect the prices at which the business may actually be sold.
Furthermore, no opinion is being expressed as to the prices at which the
securities to be paid in the Merger may trade at any future time.
 
  KnowledgeWare has agreed to pay Alex. Brown a financial advisory fee of
approximately $970,000, as calculated based on Sterling's stock price as of
August 31, 1994, in connection with the Merger, payable upon consummation of
the Merger. As part of such fee, KnowledgeWare has agreed to pay Alex. Brown
$350,000 for rendering its initial opinion. KnowledgeWare has also agreed to
pay Alex. Brown an additional fee of $50,000 for its opinion delivered on
August 31, 1994. Payment of the fees for these opinions is not conditioned upon
the closing of the transaction. KnowledgeWare has also agreed to reimburse
Alex. Brown for its reasonable out-of-pocket expenses incurred in connection
with rendering financial advisory services, including fees and disbursements of
its legal counsel. KnowledgeWare has agreed to indemnify Alex. Brown and its
directors, officers, agents, employees and controlling persons for certain
costs, expenses and liabilities to which it may be subjected, including
liabilities under federal securities laws arising out of or in connection with
its rendering of services under its engagement as financial advisor.
 
  Alex. Brown, as a customary part of its investment banking business, is
engaged in the valuation of businesses and their securities in connection with
mergers and acquisitions, negotiated underwritings, private placements and
valuations for estate, corporate and other purposes. Alex. Brown has advised
KnowledgeWare that in the ordinary course of its business it may actively trade
the equity and debt securities of KnowledgeWare and Sterling for its own
account or for the account of its customers and accordingly may at any time
hold a long or short position in such securities. In addition, Alex. Brown
advised the Board of Directors that it has, in the past, provided investment
banking services to Sterling. In March 1993, Alex. Brown acted as a financial
advisor to the Board of Directors of Sterling in connection with the
acquisition of Systems Center, and also was the lead-managing underwriter of
the January 1993 public offering of the 5 3/4% convertible subordinated
debentures of Sterling. At the present time, Alex. Brown is not acting in any
financial advisory capacity for Sterling. Alex. Brown regularly publishes
research reports regarding the computer systems industry and the businesses and
securities of Sterling and other publicly owned companies in the computer
software industry.
 
                                       40
<PAGE>
 
INTERESTS OF CERTAIN PERSONS IN THE MERGER
 
  KnowledgeWare Stock Option Plans. As provided in the Merger Agreement, by
virtue of the Merger, all options (the "KnowledgeWare Options") outstanding at
the Effective Time under KnowledgeWare's Incentive Stock Option Plan of 1984,
Second Incentive Stock Option Plan of 1984, 1988 Stock Incentive Plan, 1989
Non-Employee Directors Stock Option Plan, 1989 Employee Stock Purchase Plan and
1993 Non-Employee Directors Stock Option Plan (collectively, the "KnowledgeWare
Stock Option Plans"), whether or not then exercisable, will be assumed by
Sterling and converted into and become a right with respect to Sterling Common
Stock. Each KnowledgeWare Option assumed by Sterling will be exercisable upon
the same terms and conditions as under the applicable KnowledgeWare Stock
Option Plan and applicable option agreement issued thereunder, and Sterling
will assume the KnowledgeWare Stock Option Plans and the option agreements for
such purposes. Pursuant to the Merger Agreement, at and after the Effective
Time, (i) each KnowledgeWare Option assumed by Sterling may be exercised solely
for Sterling Common Stock, (ii) the number of shares of Sterling Common Stock
subject to each KnowledgeWare Option will be equal to the product, rounded to
the nearer whole share, of (a) the number of shares of KnowledgeWare Common
Stock subject to the original KnowledgeWare Option immediately prior to the
Effective Time, times (b) the Exchange Ratio, and (iii) the per share exercise
price for each such KnowledgeWare Option will be equal to (a) the per share
exercise price for the share of KnowledgeWare Common Stock otherwise
purchasable pursuant to each KnowledgeWare Option immediately prior to the
Effective Time divided by (b) the Exchange Ratio, rounded upward to the nearest
full cent; provided, however, that in the case of any KnowledgeWare Option
which is an "incentive stock option," as defined under Section 422 of the Code,
the option price, the number of shares purchasable pursuant to such
KnowledgeWare Option and the terms and conditions of the exercise of such
KnowledgeWare Option will be determined in a manner consistent with Section
424(a) of the Code. Sterling has also agreed that (a) at or prior to the
Effective Time, it will take all corporate actions necessary to reserve for
issuance a sufficient number of shares of Sterling Common Stock for delivery
upon exercise of KnowledgeWare Options assumed by it and (b) it will file a
registration statement with respect to the shares of Sterling Common Stock
subject to such KnowledgeWare Options and use its reasonable efforts to
maintain the effectiveness of such registration statement (and maintain the
current status of the prospectus or prospectuses contained therein) for so long
as such KnowledgeWare Options remain outstanding. As of October 6, 1994, there
were KnowledgeWare Options outstanding to purchase an aggregate of 1,545,202
shares of KnowledgeWare Common Stock at a weighted average exercise price of
$9.64 per share. Following the Merger, no new options will be granted under the
KnowledgeWare Stock Option Plans.
 
  Employee Benefit Plans. Sterling has agreed to cause KnowledgeWare, as the
Surviving Corporation in the Merger (the "Surviving Corporation"), to pay, in
accordance with their terms as in effect on the date of the Merger Agreement,
all amounts payable under the terms of all written employment, severance and
termination contracts, plans and policies of KnowledgeWare with or with respect
to KnowledgeWare's current or former employees, officers and directors, which
amounts were vested on or prior to that date or which become vested as a result
of the Merger. See "The Merger Agreement--Benefit Plans."
 
  Indemnification of Directors and Officers of KnowledgeWare. Sterling has
agreed that all rights to indemnification and advancement of expenses existing
in favor of the current and former directors and officers of KnowledgeWare
against any costs, expenses, judgments, losses, or other liabilities incurred
in connection with any claim arising out of matters existing or occurring at or
prior to the Effective Time will survive the Merger for at least six years
following the Effective Time, to the fullest extent provided under
KnowledgeWare's Articles of Incorporation, Bylaws and indemnification
agreements in effect as of the date of the Merger Agreement, and Sterling has
agreed to indemnify and advance expenses to such persons to the full extent as
would be required of or permitted by KnowledgeWare. In addition, to the extent
available, Sterling has agreed to cause KnowledgeWare to maintain for three
years following the Merger KnowledgeWare's current directors' and officers'
liability insurance, or comparable insurance, with respect to matters occurring
prior to the Merger; provided that in no event will Sterling or KnowledgeWare
be required to expend more than $500,000 in the aggregate to procure or
maintain such insurance, and Sterling
 
                                       41
<PAGE>
 
and KnowledgeWare will only be required to obtain as much comparable insurance
as is available for an aggregate expenditure of $500,000. KnowledgeWare has
received a binder for a one-year directors' and officers' liability insurance
policy with an aggregate limit comparable to that under KnowledgeWare's prior
policy. If KnowledgeWare is acquired by Sterling during the policy term, the
policy converts into a three year "run-off" policy. The premium for this
policy is $600,000. Sterling and KnowledgeWare have agreed that the payment of
such premium by KnowledgeWare shall satisfy Sterling's obligation to maintain
or procure such liability insurance. See "The Merger Agreement--
Indemnification of Directors and Officers of KnowledgeWare."
 
  Stockholder Agreements. Certain directors, executive officers and/or
stockholders of KnowledgeWare have each entered into Stockholder Agreements
with Sterling pursuant to which each such stockholder has, among other things,
agreed to vote for approval of the Merger Agreement and has granted to
Sterling irrevocable proxies to vote his or its shares in such manner in the
event such stockholder fails to vote as agreed. As of August 31, 1994, such
stockholders of KnowledgeWare beneficially owned in the aggregate
approximately 19.1% of the outstanding shares of KnowledgeWare Common Stock.
See "The Stockholder Agreements."
 
  Consultation Agreement. Following the Effective Time, Sterling will enter
into a three year Consultation Agreement with Mr. Tarkenton pursuant to which
he will be compensated by Sterling at a rate of $300,000 per year plus the
reimbursement of certain expenses. In addition, following the Effective Time,
Mr. Tarkenton will be added to the Sterling Board of Directors. As a member of
the Sterling board, Mr. Tarkenton will be entitled to Sterling's customary
outside directors' fees, currently $22,500 per annum and $2,500 for each
meeting attended.
 
  Loan to KnowledgeWare. On August 31, 1994, Sterling acquired by assignment
all of the interest and right of IBM Credit in the Loan Agreement with
KnowledgeWare by paying to IBM Credit approximately $15.1 million, which was
equal to all amounts owed thereunder by KnowledgeWare. Concurrently, Sterling
and KnowledgeWare modified the terms of the Loan Agreement, among other
things, to (i) increase the term loan portion of the facility from $2.7
million to $6 million and fix the revolving portion of the facility at $16
million, (ii) reformulate the borrowing base computation to increase the
borrowing capacity based on KnowledgeWare's eligible accounts receivable and
(iii) modify certain covenants. The loan bears interest at the prime rate plus
1.25% and is secured by substantially all of KnowledgeWare's assets. As of
October 25, 1994, approximately $4.9 million in additional funds had been
advanced by Sterling to KnowledgeWare since Sterling acquired IBM Credit's
interest in the Loan Agreement. KnowledgeWare used the proceeds from the Loan
Agreement with IBM Credit to pay off an existing line of credit and for
working capital and to finance acquisitions, and used the advances from
Sterling for working capital. As an inducement to Sterling's entry into the
Amended Loan Agreement, KnowledgeWare and Sterling entered into a Warrant
Agreement pursuant to which KnowledgeWare agreed to issue to Sterling warrants
to purchase 70,250 shares of KnowledgeWare Common Stock for each $1,000,000
currently outstanding or subsequently advanced under the Amended Loan
Agreement. The warrants expire five years from their date of issuance and will
have an exercise price equal to the market price of KnowledgeWare Common Stock
as of the business day preceding the date of issuance. As of October 25, 1994,
KnowledgeWare had issued to Sterling warrants to purchase 1,405,000 shares of
KnowledgeWare Common Stock at the weighted average exercise price of $4.43 per
share. On October 25, 1994, Sterling and KnowledgeWare amended the Amended
Loan Agreement to increase the revolving portion of the facility to $22
million and agreed to waive the borrowing base requirements with respect to
borrowings of up $16 million under the revolving portion of the facility.
Sterling expects that it likely will grant additional waivers with respect to
the borrowing base requirements if KnowledgeWare needs additional cash to fund
operations prior to the consummation of the Merger. Pursuant to the terms of
the Merger Agreement, if the Merger is consummated, the shares of
KnowledgeWare Common Stock that may be acquired by Sterling upon the exercise
of such warrants will not be converted into the right to receive Sterling
Common Stock but will be disregarded. Any amounts outstanding under the
modified loan agreement will become due on August 31, 1995 (unless, with
respect to the revolving portion, the Amended Loan Agreement is extended
pursuant to its terms), or, if earlier, upon a change of control of
KnowledgeWare or the occurrence of certain other events of default. Sterling's
acquisition and modification of the Loan Agreement was not a condition to the
parties' entering into the Merger Agreement.
 
 
                                      42
<PAGE>
 
ACCOUNTING TREATMENT
 
  Sterling intends to record the Merger in accordance with the purchase method
of accounting. Accordingly, from and after the Effective Time, KnowledgeWare's
results of operations will be included in Sterling's consolidated results of
operations.
 
CERTAIN FEDERAL INCOME TAX CONSEQUENCES
 
  The parties to the Merger have not and do not intend to seek a ruling from
the IRS as to the U.S. federal income tax consequences of the Merger. Instead,
Sterling has obtained the Opinion of its counsel, Jackson & Walker, and
KnowledgeWare has obtained the Opinion of its counsel, Hicks, Maloof &
Campbell, as to certain of the expected U.S. federal income tax consequences of
the Merger, copies of which are attached as exhibits to the Registration
Statement.
 
  Subject to the conditions, qualifications and assumptions contained herein
and in its Opinion, counsel for Sterling has opined that, though it is not free
from doubt, it is more likely than not that (i) the Merger will constitute a
reorganization within the meaning of Section 368(a) of the Code; (ii) Sterling,
Merger Sub and KnowledgeWare will each be a party to the reorganization within
the meaning of Section 368(b) of the Code; and (iii) no gain or loss will be
recognized by Sterling or Merger Sub as a result of the Merger.
 
  Subject to the conditions, qualifications and assumptions contained herein
and in its Opinion, counsel for KnowledgeWare has opined that, though it is not
free from doubt, it is more likely than not that (i) the Merger will constitute
a reorganization within the meaning of Section 368(a) of the Code; (ii)
Sterling, Merger Sub and KnowledgeWare will each be a party to the
reorganization within the meaning of Section 368(b) of the Code; (iii)
KnowledgeWare will recognize no gain or loss as a result of the Merger; (iv)
KnowledgeWare stockholders will recognize no gain or loss upon receipt of
Sterling Common Stock (including the Escrowed Shares) in exchange for their
KnowledgeWare Common Stock in the Merger (except with respect to cash received
in lieu of fractional shares and, as further discussed below, except with
respect to gain or loss recognized upon the return to, or sale on behalf of,
Sterling of any Escrowed Shares pursuant to the Escrow Agreement); (v) the tax
basis of the Sterling Common Stock (including the Escrowed Shares) received by
KnowledgeWare stockholders in the Merger will be the same as the adjusted tax
basis of the KnowledgeWare Common Stock surrendered in exchange therefor
(reduced by any amount allocable to fractional share interests for which cash
is received); (vi) the holding period of the Sterling Common Stock (including
the Escrowed Shares) received by the KnowledgeWare stockholders in the Merger
will include the holding period of the KnowledgeWare Common Stock surrendered
in exchange therefor; and (vii) KnowledgeWare stockholders who receive cash in
lieu of fractional share interests of Sterling Common Stock in connection with
the Merger will generally, depending on each stockholder's particular
circumstances, recognize a capital gain or loss equal to the difference between
the amount of cash received therefor and the stockholder's adjusted tax basis
in the fractional share interest (which gain or loss will constitute long-term
capital gain or loss if the fractional share interest has been held for more
than one year at the Effective Time).
 
  The Opinions do not address, among other matters, (i) state, local, foreign
or other tax consequences; (ii) U.S. federal income tax consequences to
KnowledgeWare stockholders subject to special rules under the Code, such as
foreign persons, tax-exempt organizations, insurance companies, financial
institutions, dealers in stocks and securities, and persons whose KnowledgeWare
Common Stock is not a capital asset; and (iii) U.S. federal income tax
consequences affecting shares of KnowledgeWare Common Stock acquired upon
exercise of employee stock options, stock purchase plan rights or otherwise as
compensation, or holders of warrants, options or other rights to acquire shares
of KnowledgeWare Common Stock. The Opinions are based on the Code, the Treasury
Regulations, administrative rulings and pronouncements of the IRS and judicial
decisions, all as of the date of the Opinions and all of which are subject to
change, prospectively or retroactively.
 
  The Opinions represent only such counsels' best judgement as to the expected
U.S. federal income tax consequences of the Merger and are not binding on the
IRS. The IRS may challenge the conclusions stated
 
                                       43
<PAGE>
 
therein and KnowledgeWare stockholders may incur the cost and expense of
defending positions taken by them with respect to the Merger. A successful
challenge by the IRS could have material adverse consequences to Sterling,
Merger Sub, KnowledgeWare and the stockholders of KnowledgeWare. In rendering
the Opinions, counsel have relied, as to factual matters, solely on the
present and continuing accuracy of (i) the description of the facts relating
to the Merger contained in this Proxy Statement/Prospectus, (ii) the factual
representations contained in the Merger Agreement and related documents, and
(iii) certain factual matters addressed by representations made by certain
executive officers of Sterling and KnowledgeWare, as further described in the
Opinions. Events occurring after the date of the Opinions could alter the
facts upon which the Opinions are based, in which event the Opinions and this
summary would no longer be applicable.
 
  Although Sterling presently intends to treat the Merger as a tax-free
reorganization under Section 368(a) of the Code (a "Reorganization"), it is
not a condition precedent to KnowledgeWare's obligation to effect the Merger
that the Merger qualify as a Reorganization and Sterling is not obligated to
treat the Merger as a Reorganization for U.S. federal income tax purposes.
Additionally, although the continuing accuracy of the Opinions is a condition
precedent to Sterling's obligation to effect the Merger, Sterling may, in its
sole and absolute discretion, waive such condition.
 
  ACCORDINGLY, FOR ALL OF THE ABOVE REASONS, KNOWLEDGEWARE STOCKHOLDERS ARE
URGED TO CONSULT THEIR OWN TAX ADVISORS AS TO THE SPECIFIC TAX CONSEQUENCES TO
THEM OF THE MERGER, INCLUDING THE APPLICABILITY AND EFFECT OF FEDERAL, STATE,
LOCAL AND OTHER TAX LAWS.
 
  As discussed in the Opinions, there are certain issues which could adversely
impact qualification of the Merger as a Reorganization. For the Merger to
qualify as a Reorganization, the Treasury Regulations and judicial authorities
require that the historic KnowledgeWare stockholders receive and retain for
some period of time a significant continuing proprietary interest in Sterling
(the "Continuity" requirement). For advance ruling purposes, the IRS requires
that KnowledgeWare stockholders receive in the Merger Sterling Common Stock
having a value equal to at least 50 percent of the value of all the formerly
outstanding Common Stock of KnowledgeWare (although the courts have approved
lower thresholds).
 
  Shares of Sterling Common Stock disposed of after the Merger by former
KnowledgeWare stockholders pursuant to a plan, intention or arrangement
existing at the Effective Time will generally not be counted towards
satisfaction of the Continuity requirement. Counsel have obtained
representations from management of Sterling and KnowledgeWare generally to the
effect that, to their knowledge, there is no plan, intention or arrangement on
the part of any stockholder of KnowledgeWare, to sell, exchange, or otherwise
dispose of a number of shares of Sterling Common Stock received in the Merger
that would reduce the KnowledgeWare stockholders' aggregate ownership of
Sterling Common Stock below the 50 percent threshold. No such representations
have been obtained, however, from the KnowledgeWare stockholders themselves,
and, except with respect to the Escrowed Shares, none of the KnowledgeWare
stockholders are contractually obligated to hold the shares of Sterling Common
Stock received by them in the Merger for any period of time. In the case of a
publicly traded target, however, the IRS has distinguished, for advance ruling
purposes, between (i) target shareholders owning less than 5 percent of the
target's shares, and (ii) target shareholders owning 5 percent or more of the
target's shares. Based on the IRS' advance ruling guidelines, shares of
Sterling Common Stock issued to KnowledgeWare stockholders who hold less than
5 percent of the outstanding KnowledgeWare Common Stock at the Effective Time,
should be treated towards satisfaction of the Continuity requirement.
 
  There is no direct authority as to the effect of the Merger Agreement and
the Escrow Agreement (collectively, the "Escrow Arrangement") and the
potential return to, or sale on behalf of, Sterling of the
 
                                      44
<PAGE>
 
shares subject thereto on the Continuity requirement. Consistent with the
authorities discussed below supporting treatment of such shares as owned by the
KnowledgeWare stockholders from the Effective Time, the Opinions conclude that
the Sterling Common Stock subject to the Escrow Arrangement should count
towards satisfaction of the Continuity requirement, though there is no
assurance that the IRS or a court would agree.
 
  In the context of a Reorganization, escrow arrangements can adversely affect
qualification as a Reorganization and can result in adverse tax consequences to
stockholders otherwise entitled to receive the shares subject to the escrow. If
the stockholders otherwise entitled to receive the shares subject to the escrow
are entitled to be paid any dividends thereon currently and are entitled to
exercise voting rights with respect to the shares, the courts have generally
treated such stockholders as the owners of the shares, for U.S. federal income
tax purposes, from the date issued. The IRS has promulgated safe-harbor,
advance ruling requirements for escrowed stock in Reorganizations. The Escrow
Arrangement has been structured with the intent that it satisfy the judicial
requirements and substantially all of the IRS' advance ruling requirements.
Accordingly, the KnowledgeWare stockholders entitled to receive the Escrowed
Shares should be treated as the owners thereof, for U.S. federal income tax
purposes, at the Effective Time. If Sterling were treated as the owner of the
shares subject to the Escrow Arrangement until their release to the
KnowledgeWare stockholders, qualification of the Merger as a Reorganization
could be adversely affected and the KnowledgeWare stockholders could be deemed
in receipt of imputed interest income with respect to the delayed delivery of
the shares subject to the Escrow Arrangement.
 
  Assuming the KnowledgeWare stockholders are treated as the owners of the
Escrowed Shares from the Effective Time, the U.S. federal income tax
consequences to them upon their deemed receipt of the Escrowed Shares at the
Effective Time will be as described above with respect to receipt of all of the
Sterling Common Stock (including the Escrowed Shares) at the Effective Time.
There will be no further U.S. federal income tax consequences to the
KnowledgeWare stockholders resulting from any subsequent release to them of
Escrowed Shares. Because, however, the Escrowed Shares are valued as of the
time of their return to, or sale on behalf of, Sterling in satisfaction of
Sterling's right to be indemnified, KnowledgeWare stockholders will recognize
gain or loss upon return to, or sale on behalf of, Sterling of any Escrowed
Shares in an amount equal to the difference between the then value of such
Escrowed Shares and the KnowledgeWare stockholders' adjusted tax basis in such
shares. KnowledgeWare stockholders will not be entitled to claim a loss based
upon the value of the shares returned to, or sold on behalf of, Sterling.
Instead, the adjusted tax basis in their remaining shares of Sterling Common
Stock will be increased by the then value of the returned or sold shares.
Notwithstanding the foregoing, although no authorities directly so hold, a
KnowledgeWare stockholder who has previously disposed of all such remaining
shares should recognize a capital loss equal to the value of the Escrowed
Shares returned to, or sold on behalf of, Sterling. Dividends on Escrowed
Shares, which, pursuant to the Escrow Agreement are required to be distributed
to the KnowledgeWare stockholders, will generally be taxable to them as
ordinary income.
 
  Effective August 31, 1994, Sterling acquired by assignment all of the
interest and right of IBM Credit in the Loan Agreement with KnowledgeWare and
then entered into the Amended Loan Agreement, and, to further induce Sterling
to acquire IBM Credit's interest in the Loan Agreement and to enter into the
Amended Loan Agreement, KnowledgeWare and Sterling entered into the Warrant
Agreement. Financing arrangements between parties to a Reorganization can
adversely impact the tax treatment of the parties to the Reorganization. The
IRS has ruled, in the context of a statutory merger under Code Section
368(a)(1)(A), that cash advances from the acquiring corporation to the target
corporation prior to a merger constituted additional consideration for the
assets of the target corporation and resulted, pursuant to Code Section 361(b),
in recognition of gain by the target corporation. Rev. Rul. 72-343, 1972-2 C.B.
213. The advances at issue in Revenue Ruling 72-343 were non-interest bearing,
subordinated demand notes and were repayable only if the merger was not
consummated through the fault of the target or its controlling shareholder. The
indebtedness evidenced by the
Amended Loan Agreement bears interest, is not subordinated, is secured by a
first lien on substantially all of
 
                                       45
<PAGE>
 
KnowledgeWare's assets, and is payable at fixed times and in all events.
Additionally the representation letters from Sterling and KnowledgeWare
management contain representations generally to the effect that (i) the funds
loaned by Sterling or Merger Sub to KnowledgeWare have been or will be made on
an arm's-length basis with terms comparable to those which would have been
obtained by unaffiliated third parties in the practice of making loans of
comparable risk, and were, or will be, adequately collateralized when made or
acquired; (ii) there is no plan or intention that any part of any such loan
will be forgiven or converted, directly or indirectly, into a capital
contribution to KnowledgeWare, and (iii) none of the proceeds of the
indebtedness evidenced by the Loan Agreement and the Amended Loan Agreement
have been or will be distributed to KnowledgeWare stockholders. Accordingly,
although not free from doubt, the facts of Revenue Ruling72-343 appear to be
distinguishable from those relating to the Loan Agreement and the Amended Loan
Agreement.
 
  Advances not treated, for U.S. federal income tax purposes, as debt are
generally treated as constituting equity in the nature of non-voting preferred
stock. In the context of Reorganizations under Sections 368(a)(1)(B) and
368(a)(2)(E) of the Code, cash paid by an acquiror to a target for newly issued
shares of the target's stock, in connection with the consummation of the
Reorganization, is not treated as part of the Reorganization transaction and
does not adversely impact the Reorganization, provided the cash is not
distributed to the target shareholders. Rev. Rul. 72-522, 1972-2 C.B. 215;
Treas. Reg. (S)1.368-2(j)(7), Example 7. Accordingly, in counsels' opinion, the
better view is that even if Sterling's advances under the Amended Loan
Agreement are not treated as debt for U.S. federal income tax purposes, the
recharacterized debt constitutes an additional equity investment by Sterling
which does not constitute additional consideration paid to the KnowledgeWare
stockholders by Sterling in exchange for their KnowledgeWare Common Stock
surrendered in the Merger.
 
  Finally, since KnowledgeWare is the surviving corporation in the Merger, it
does not transfer any of its properties in the Merger; rather, the end result
of the Merger is an exchange of Sterling Common Stock for KnowledgeWare Common
Stock among the KnowledgeWare stockholders and Sterling. Therefore, unlike the
facts of Revenue Ruling 72-343, Code Section 361(b) arguably would not apply to
the Merger even if the advances by Sterling were treated as part of the Merger
Consideration.
 
  Accordingly, although Revenue Ruling 72-343 may be factually and legally
distinguished from the Merger, as discussed herein, there is no direct
authority addressing the effect of Sterling's acquisition of the Loan Agreement
and its advances under the Amended Loan Agreement on qualification of the
Merger as a Reorganization or on recognition of gain at the KnowledgeWare
level. Since there is no direct authority discussing the facts of the Merger
and since the U.S. federal income tax characterization of purported debt as
equity is highly factual, counsel believed it necessary that the Opinions be
rendered on a "more likely than not" basis.
 
REGULATORY APPROVAL
 
  Under the HSR Act, and the rules promulgated thereunder by the Federal Trade
Commission (the "FTC"), the Merger could not be consummated until notifications
have been given and certain information has been furnished to the FTC and the
Antitrust Division of the Department of Justice (the "Antitrust Division") and
specified waiting period requirements have been satisfied. Sterling and
KnowledgeWare have each filed notification and report forms under the HSR Act
with the FTC and the Antitrust Division. Early termination of the required
waiting period under the HSR Act was granted on October 4, 1994. At any time
before or after consummation of the Merger, the Antitrust Division or the FTC
could take such action under the antitrust laws as it deems necessary or
desirable in the public interest, including seeking to enjoin the consummation
of the Merger or seeking divestiture of substantial assets of Sterling or
KnowledgeWare. At any time before or after the Effective Time, and
notwithstanding that the HSR Act waiting period has been terminated, any state
could take such action under the antitrust laws as it deems necessary or
desirable. Such action could include seeking to enjoin the consummation of the
Merger or seeking divestiture of
 
                                       46
<PAGE>
 
KnowledgeWare or businesses of Sterling or KnowledgeWare by Sterling. Private
parties may also seek to take legal action under the antitrust laws under
certain circumstances.
 
RESALE RESTRICTIONS; REGISTRATION RIGHTS
 
  All shares of Sterling Common Stock received by KnowledgeWare stockholders
in the Merger (including Escrowed Shares if and when distributed to
KnowledgeWare stockholders) will be freely transferable, except that shares of
Sterling Common Stock received by persons who are deemed to be "affiliates"
(as such term is defined under the Securities Act) of KnowledgeWare prior to
the Merger may be resold by them only in transactions permitted by the resale
provisions of Rule 145 promulgated under the Securities Act (or Rule 144 in
the case of such persons who become affiliates of Sterling) or as otherwise
permitted under the Securities Act. Persons who may be deemed to be affiliates
of KnowledgeWare or Sterling generally include individuals or entities that
control, are controlled by, or are under common control with, such party and
may include certain officers and directors of such party as well as principal
stockholders of such party. The Merger Agreement requires KnowledgeWare to
exercise its reasonable efforts to cause each of its affiliates to execute a
written agreement to the effect that such person will not offer or sell,
transfer or otherwise dispose of any of the shares of Sterling Common Stock
issued to such person in or pursuant to the Merger unless (a) such sale,
transfer or other disposition has been registered under the Securities Act,
(b) such sale, transfer or other disposition is made in conformity with Rule
145 under the Securities Act or (c) in the opinion of counsel, such sale,
transfer or other disposition is exempt from registration under the Securities
Act.
 
  Sterling has agreed to file a registration statement under the Securities
Act to permit the sale by KnowledgeWare's affiliates of the shares of Sterling
Common Stock to be received by them in the Merger without regard to the
limitations imposed by Rule 144 or Rule 145 promulgated under the Securities
Act. Sterling has agreed to use its reasonable efforts to cause such
registration statement to become effective as soon as practicable following
the filing thereof and to remain effective until all such stockholders are
eligible to sell their Sterling Common Stock pursuant to Rule 144 or Rule 145
under the Securities Act without limitation as to the number of shares which
may be sold by such stockholders.
 
NO DISSENTERS' RIGHTS
 
  Under Georgia law, stockholders entitled to dissenters' rights may not
challenge the action giving rise to such rights absent procedural defects or
fraud in connection with the approval of the corporate action. Under Georgia
law, however, no stockholder of KnowledgeWare will have any dissenters' rights
in connection with, or as a result of, any of the matters to be acted upon at
the Special Meeting. In the absence of dissenters' rights, all actions
otherwise available at equity or at law remain available to stockholders of
KnowledgeWare.
 
                             THE MERGER AGREEMENT
 
  The following is a brief summary of certain provisions of the Merger
Agreement, a copy of which is attached as Appendix A to this Proxy
Statement/Prospectus and is incorporated herein by reference. This summary is
qualified in its entirety by reference to the full text of the Merger
Agreement.
 
THE MERGER
 
  The Merger Agreement provides that, subject to the terms and conditions of
the Merger Agreement, at the Effective Time, Merger Sub will be merged with
and into KnowledgeWare, and the separate corporate existence of Merger Sub
will thereupon cease. KnowledgeWare will be the surviving corporation in the
Merger and will continue to be governed by the laws of the State of Georgia,
and the separate corporate existence of KnowledgeWare with all its rights,
privileges, immunities, powers and franchises will continue unaffected by the
Merger, except as set forth in the Merger Agreement. The Merger will have the
effects specified in the GBCC.
 
 
                                      47
<PAGE>
 
  As soon as practicable following the closing of the Merger, and provided that
the Merger Agreement has not been terminated or abandoned, KnowledgeWare and
Merger Sub will cause a Certificate of Merger to be filed with the Secretary of
State of the State of Georgia as provided in Section 14-2-1105(b) of the GBCC.
The Merger will become effective at the Effective Time.
 
  At the Effective Time, by virtue of the Merger and without any action on the
part of the holder thereof, each share of KnowledgeWare Common Stock issued and
outstanding immediately prior to the Effective Time (other than shares of
KnowledgeWare Common Stock owned by Sterling, Merger Sub or any other
subsidiary of Sterling (collectively, the "Buyer Group") and shares of
KnowledgeWare Common Stock held in KnowledgeWare's treasury immediately prior
to the Effective Time) will be converted into the right to receive up to .1653
of a share of Sterling Common Stock (the "Merger Consideration"). Promptly
after the Merger, KnowledgeWare common stockholders will be entitled to receive
.1322 of a share of Sterling Common Stock for each share of KnowledgeWare
Common Stock with the Escrowed Shares being placed in escrow pursuant to the
terms of the Escrow Agreement and thereafter distributed to KnowledgeWare
common stockholders only if and to the extent that such shares are not
necessary to cover certain losses, claims, liabilities, judgments, costs and
expenses that may be incurred by Sterling, Merger Sub or KnowledgeWare in
connection with certain Actions (including amounts paid in settlement) to which
Sterling, Merger Sub or KnowledgeWare is or may become a party and with respect
to which Sterling is entitled to indemnification. Sterling is entitled to
indemnification concerning certain Actions pending as of the date of the Merger
Agreement or thereafter arising, including Actions arising out of violations or
alleged violations of securities laws but excluding Actions arising out of
ordinary course of business transactions, Actions brought by current or former
employees with respect to their employment or termination thereof, and certain
other Actions. Since August 30, 1994, a number of Actions have been filed
against KnowledgeWare and certain of its officers alleging violations of
securities laws. Losses, claims, liabilities, judgements, costs or expenses
incurred by KnowledgeWare, Sterling or Merger Sub in connection with these
Actions (including amounts paid in settlement) will result in claims for
indemnification to be satisfied from the Escrowed Shares. In the event that all
of the Escrowed Shares are used to cover losses, claims, liabilities,
judgments, costs or expenses incurred by KnowledgeWare, Sterling or Merger Sub,
no Escrowed Shares will be distributed to the KnowledgeWare common
stockholders. See "Summary--The Merger," "Summary--Recent Developments,"
"Investment Considerations--Establishment of Escrow," "The Merger Agreement--
Indemnification of Sterling; Escrow" and "The Escrow Agreement."
 
  As a result of the Merger and without any action on the part of the holder
thereof, all such shares of KnowledgeWare Common Stock will cease to be
outstanding and will be canceled and retired and will cease to exist, and each
holder of a Certificate representing any such shares of KnowledgeWare Common
Stock will thereafter cease to have any rights with respect to such shares of
KnowledgeWare Common Stock, except the right to receive, without interest, the
Merger Consideration (less all or some portion of the Escrowed Shares if such
shares are used to cover certain losses, claims, liabilities, judgments, costs
and expenses incurred by Sterling, Merger Sub or KnowledgeWare as described
above) and cash for fractional interests of Sterling Common Stock (as described
in "The Merger Agreement--Exchange Procedures"), upon the surrender of such
Certificate. Each share of KnowledgeWare Common Stock issued and outstanding at
the Effective Time and owned by any of the Buyer Group, and each share of
KnowledgeWare Common Stock issued and held in KnowledgeWare's treasury at the
Effective Time, by virtue of the Merger and without any action on the part of
the holder thereof, will cease to be outstanding and will be canceled and
retired without payment of any consideration therefor and will cease to exist.
At the Effective Time, each share of common stock of Merger Sub issued and
outstanding immediately prior to the Effective Time will be converted into and
exchanged for one newly and validly issued, fully paid and nonassessable share
of common stock of the Surviving Corporation.
 
  At the Effective Time, all KnowledgeWare Options then outstanding under the
KnowledgeWare Stock Option Plans will remain outstanding and will be assumed by
Sterling. Each KnowledgeWare Option assumed by Sterling will be exercisable
upon the same terms and conditions as under the applicable
 
                                       48
<PAGE>
 
KnowledgeWare Stock Option Plan and the applicable option agreement issued
thereunder, and Sterling will assume the KnowledgeWare Stock Option Plans for
such purposes, except that (a) each such KnowledgeWare Option will be
exercisable for that whole number of shares of Sterling Common Stock into which
the number of shares of KnowledgeWare Common Stock under the unexercised
portion of such option would be converted immediately prior to the Effective
Time and (b) the exercise price per share of Sterling Common Stock will be an
amount equal to the exercise price per share subject to such KnowledgeWare
Option immediately prior to the Effective Time divided by the Exchange Ratio.
Following the Merger, no new options will be granted under the KnowledgeWare
Stock Option Plans.
 
  The Warrants outstanding at the Effective Time will remain outstanding and
will be assumed by Sterling. Each Warrant will be exercisable upon the same
terms and conditions as set forth in the Warrant, except that (a) each such
Warrant will be exercisable for that whole number of shares of Sterling Common
Stock into which the number of shares of KnowledgeWare Common Stock under the
unexercised portion of such Warrant would be converted immediately prior to the
Effective Time and (b) the purchase price (exercise price) per share of
Sterling Common Stock will be an amount equal to the purchase price (exercise
price) for a share of KnowledgeWare Common Stock subject to such Warrant
immediately prior to the Effective Time divided by the Exchange Ratio. The
purchase price (exercise price) per share of KnowledgeWare Common Stock subject
to the Warrants currently is $17.50.
 
EXCHANGE PROCEDURES
 
  Promptly after the Effective Time, The First National Bank of Boston, N.A.,
as Exchange Agent for the Merger, will mail to each person who was, at the
Effective Time, a holder of record (other than any of the Buyer Group) of a
Certificate or Certificates a letter of transmittal to be used by such holders
in forwarding their Certificates, and instructions for effecting the surrender
of the Certificates in exchange for certificates representing shares of
Sterling Common Stock. Upon surrender to the Exchange Agent of a Certificate
for cancellation, together with such letter of transmittal, the holder of such
Certificate will be entitled to receive a certificate representing that number
of shares of Sterling Common Stock which such holder has the right to receive
in respect of the Certificate surrendered pursuant to the provisions of the
Merger Agreement, and the Certificate so surrendered will be canceled.
KNOWLEDGEWARE STOCKHOLDERS SHOULD NOT SEND IN THEIR CERTIFICATES UNTIL THEY
RECEIVE A FORM OF LETTER OF TRANSMITTAL.
 
  No interest will be paid or accrued on the amount payable upon surrender of
Certificates. No dividends on shares of Sterling Common Stock, if any, will be
paid with respect to any shares of KnowledgeWare Common Stock or other
securities represented by a Certificate until such Certificate is surrendered
for exchange as provided in the Merger Agreement. Subject to the effect of
applicable laws, following surrender of any such Certificate, there shall be
paid to the holder of certificates representing shares of Sterling Common Stock
issued in exchange therefor, without interest, (i) at the time of such
surrender, the amount of any dividends or other distributions with a record
date after the Effective Time theretofore payable with respect to such shares
of Sterling Common Stock and not paid, less the amount of any withholding taxes
which may be required thereon, and (ii) at the appropriate payment date, the
amount of dividends or other distributions with a record date after the
Effective Time but prior to surrender thereof and a payment date subsequent to
surrender thereof payable with respect to such shares of Sterling Common Stock,
less the amount of any withholding taxes which may be required thereon.
 
  At or after the Effective Time, there will be no transfers on the transfer
books of KnowledgeWare of shares of KnowledgeWare Common Stock or Warrants
which were outstanding immediately prior to the Effective Time.
 
  No fractional shares of Sterling Common Stock will be issued and any holder
of shares of KnowledgeWare Common Stock entitled under the Merger Agreement to
receive a fractional share will be entitled to receive only a cash payment in
lieu thereof, which payment will represent such holder's
 
                                       49
<PAGE>
 
proportionate interest in the net proceeds from the sale by the Exchange Agent
on behalf of all such holders of the aggregate fractional shares of Sterling
Common Stock that such holders would have been entitled to receive. Any such
sale will be made by the Exchange Agent within ten business days after the date
upon which the Certificate(s) that would otherwise result in the issuance of
such shares of Sterling Common Stock have been received by the Exchange Agent.
 
  Any portion of the fund from which cash payments in lieu of fractional
interests in shares of Sterling Common Stock will be made (including the
proceeds of any investments thereof) and any shares of Sterling Common Stock
that are unclaimed by the former stockholders of KnowledgeWare during the one
year period after the Effective Time will be delivered to the Surviving
Corporation. Any former stockholders of KnowledgeWare who have not theretofore
complied with the exchange procedures in the Merger Agreement may thereafter
look to the Surviving Corporation only as a general creditor for payment of
their shares of Sterling Common Stock, cash in lieu of fractional shares, and
any unpaid dividends and distributions on shares of Sterling Common Stock,
deliverable in respect of each share of KnowledgeWare Common Stock such
stockholder holds, in each case without any interest thereon. Notwithstanding
the foregoing, none of Sterling, the Surviving Corporation, Merger Sub, the
Exchange Agent or any other person will be liable to any former holder of
shares of KnowledgeWare Common Stock for any amount properly delivered to a
public official pursuant to applicable abandoned property, escheat or similar
laws.
 
  In the event that any Certificate has been lost, stolen or destroyed, upon
the making of an affidavit of that fact by the person claiming such Certificate
to be lost, stolen or destroyed and, if required by the Surviving Corporation,
the posting by such person of a bond in such reasonable amount as the Surviving
Corporation may direct as indemnity against any claim that may be made against
it with respect to such Certificate, the Exchange Agent will issue in exchange
for such lost, stolen or destroyed Certificate the shares of Sterling Common
Stock and cash in lieu of fractional shares, and any unpaid dividends and
distributions on shares of Sterling Common Stock deliverable in respect thereof
pursuant to the Merger Agreement.
 
REPRESENTATIONS AND WARRANTIES
 
  The Merger Agreement contains various customary representations and
warranties relating to, among other things: (a) the due organization, power and
standing of KnowledgeWare and Sterling and similar corporate matters; (b) the
capital structure of KnowledgeWare and Sterling; (c) investment interests of
KnowledgeWare; (d) the authorization, execution, delivery and enforceability of
the Merger Agreement, the Stock Option Agreement and related matters; (e) any
required consents or approvals, conflicts under charters or bylaws and
violations of any instruments or law; (f) certain documents filed by each of
KnowledgeWare and Sterling with the Commission and the accuracy of information
contained therein; (g) conduct of business in the ordinary course and the
absence of certain changes or material adverse effects; (h) litigation; (i)
taxes; (j) proprietary rights; (k) retirement and other employee benefit plans
of KnowledgeWare and matters relating to the Employee Retirement Income
Security Act of 1974, as amended; (l) brokers' and finders' fees with respect
to the Merger; (m) antitakeover statutes; and (n) labor matters.
 
CERTAIN COVENANTS
 
  Pursuant to the Merger Agreement, KnowledgeWare has agreed that, during the
period from the date of the Merger Agreement until the Effective Time, except
as permitted by the Merger Agreement or the Stock Option Agreement, it will (a)
conduct its business in the ordinary course; (b) not sell, pledge or agree to
sell or pledge any stock owned by it in any of its subsidiaries, amend its
Articles of Incorporation or Bylaws, split, combine or reclassify any
outstanding capital stock, or declare, set aside or pay any dividends with
respect to any of its capital stock; (c) not (i) issue, sell, pledge, dispose
of or encumber any shares of, or securities convertible or exchangeable for, or
options, warrants, calls, commitments or rights of any kind to acquire, any
shares of its capital stock of any class other than shares of KnowledgeWare
Common Stock issuable pursuant to options outstanding on the date of the Merger
Agreement under the KnowledgeWare Stock Option Plans, the exercise of the
Warrants and the Stock Option Agreement; (ii) transfer, lease, license,
 
                                       50
<PAGE>
 
guarantee, sell, mortgage, pledge, dispose of any other property or assets or
encumber any property or assets or incur or modify any indebtedness or other
liability other than in the ordinary course of business; (iii) authorize
capital expenditures other than in the ordinary course of business; (iv) make
any acquisition of, or investment in, substantially all of the assets or stock
of any other person or entity; or (v) make any payment to third parties for
goods or services that are not commercially reasonable; (d) not grant any bonus
or pay increase or any severance or termination pay to, or enter into any
employment agreement with, any director, officer or other employee of
KnowledgeWare or any of its subsidiaries, subject to certain exceptions; (e)
not establish, adopt, enter into, make or amend any collective bargaining
agreement or employee benefit plan, subject to certain exceptions; (f) not
modify, amend or terminate any material contracts or waive, release or assign
any rights or claims; (g) not change its method of accounting as in effect at
June 30, 1994 except as required by changes in generally accepted accounting
principles as concurred to by KnowledgeWare's independent auditors, or change
its fiscal year; and (h) not take or cause to be taken any action which would
disqualify the Merger as a "reorganization" within the meaning of Section
368(a) of the Code.
 
  Both KnowledgeWare and Sterling have agreed to cooperate in the prompt
preparation and filing of certain documents under federal and state securities
laws and with applicable government entities, and KnowledgeWare has agreed to
use its best efforts to obtain and deliver to Sterling certain letters from its
"affiliates," as defined under Rule 145 under the Securities Act.
 
INDEMNIFICATION OF STERLING; ESCROW
 
  Pursuant to the Merger Agreement, KnowledgeWare has agreed to indemnify
Sterling and Merger Sub, and their respective subsidiaries, directors,
officers, employees and agents from and against all losses, claims,
counterclaims, obligations, causes of action, liabilities, costs, damages,
judgments and expenses (including attorneys' fees, and expenses incurred in
connection with investigating, preparing for, pursuing or defending any Action)
(collectively, "Damages") asserted against or incurred by KnowledgeWare,
Sterling, Merger Sub or such other persons from or after the date of the Merger
Agreement, by reason of or arising from any Action pending as of the date of
the Merger Agreement or thereafter arising, including Actions arising out of
violations or alleged violations of securities laws, but excluding Actions
arising out of ordinary course of business transactions, Actions brought by
current or former employees with respect to their employment or termination
thereof and certain other Actions. The remedies of Sterling, Merger Sub and the
other persons to be indemnified are limited in all cases to the Escrowed Shares
and the provisions of the Escrow Agreement. See "The Escrow Agreement." Since
August 30, 1994, a number of Actions have been filed against KnowledgeWare and
certain of its officers alleging violations of securities laws. Losses, claims,
liabilities, judgments, costs or expenses of KnowledgeWare, Sterling or Merger
Sub resulting from these Actions will result in claims for indemnification to
be satisfied from the Escrowed Shares. See "Summary--The Merger," "Summary--
Recent Developments," "Investment Considerations--Certain Legal Proceedings"
and "Certain Information Regarding KnowledgeWare--Legal Proceedings."
 
NO SOLICITATION OF TRANSACTIONS
 
  KnowledgeWare has agreed that, prior to the Effective Time or the termination
of the Merger Agreement, it will not, and will direct and use its best efforts
to cause its officers, directors, employees, agents and representatives not to,
initiate, solicit or encourage, directly or indirectly, any inquiries or the
making or implementation of any proposal or offer (including, without
limitation, any proposal or offer to its stockholders) with respect to a
merger, acquisition, consolidation or similar transaction involving, or any
purchase of all or any significant portion of the assets or any equity
securities of, it or any of its subsidiaries (any such proposal or offer being
hereinafter referred to as an "Acquisition Proposal"), or engage in any
negotiations concerning, or provide any confidential information or data to, or
have any discussions with, any person relating to an Acquisition Proposal, or
otherwise facilitate any effort or attempt to make or implement an Acquisition
Proposal. KnowledgeWare has agreed to immediately cease and cause to be
terminated any existing activities, discussions or negotiations with any
parties conducted prior to the date of the Merger Agreement with respect to any
of the foregoing and to take the necessary steps to inform the
 
                                       51
<PAGE>
 
appropriate individuals or entities of these obligations. KnowledgeWare has
also agreed to notify Sterling immediately if any such inquiries or proposals
are received by, any such information is requested from, or any such
negotiations or discussions are sought to be initiated or continued with, it;
provided that the Board of Directors of KnowledgeWare may furnish information
to, or enter into discussions or negotiations with, any person or entity that
makes an unsolicited proposal to acquire KnowledgeWare pursuant to a merger,
consolidation, share exchange, business combination, purchase of a substantial
portion of the assets or other similar transactions, if, and only to the extent
that (a) the Board of Directors of KnowledgeWare, after consultation with and
consideration of the written advice of independent legal counsel, determines in
good faith that such action is required for the Board of Directors of
KnowledgeWare to comply with its fiduciary duties to stockholders imposed by
applicable law, (b) prior to furnishing such information to, or entering into
discussions or negotiations with, such person or entity, KnowledgeWare provides
written notice to Sterling to the effect that it is furnishing information to,
or entering into discussions or negotiations with, such person or entity, and
(c) KnowledgeWare keeps Sterling informed, on a current basis, of the status of
any such discussions or negotiations. Notwithstanding any of the foregoing
restrictions, KnowledgeWare's Board of Directors will not be prohibited from
complying with Rule 14e-2 promulgated under the Exchange Act with regard to an
Acquisition Proposal.
 
BENEFIT PLANS
 
  Sterling has agreed to cause the Surviving Corporation to pay, in accordance
with their terms as in effect on the date of the Merger Agreement, all amounts
due and payable under the terms of all written employment, severance and
termination contracts, agreements, plans, policies and commitments of
KnowledgeWare with or with respect to its current and former employees,
officers, and directors (the "Employee Agreements"), which amounts were vested
on or prior to the date of the Merger Agreement or which became vested as a
result of the Merger, and will cause the Surviving Corporation to assume and
continue to honor the terms of such Employee Agreements.
 
GOVERNANCE
 
  At the Effective Time, the Articles of Incorporation of KnowledgeWare will be
the Articles of Incorporation of the Surviving Corporation, subject to certain
amendments. The Bylaws of Merger Sub in effect immediately prior to the
Effective Time will be the Bylaws of the Surviving Corporation, until duly
amended in accordance with their terms and the GBCC. The directors of Merger
Sub immediately prior to the Effective Time will, from and after the Effective
Time, be the directors of the Surviving Corporation.
 
INDEMNIFICATION OF DIRECTORS AND OFFICERS OF KNOWLEDGEWARE
 
  Sterling has agreed that all rights to indemnification and advancement of
expenses existing in favor of the current and former directors and officers of
KnowledgeWare against any costs, expenses, judgements, losses or other
liabilities will survive the Merger for at least six years following the
Effective Time, to the fullest extent provided under KnowledgeWare's Articles
of Incorporation, Bylaws and indemnification agreements existing as of the date
of the Merger Agreement, and Sterling has agreed to indemnify and advance
expenses to such persons to the full extent as would be required of or
permitted by KnowledgeWare. In addition, to the extent available, Sterling has
agreed to cause KnowledgeWare to maintain for three years following the Merger
KnowledgeWare's current directors' and officers' liability insurance, or
comparable insurance, with respect to matters occurring prior to the Merger;
provided that, in no event will Sterling or KnowledgeWare be required to expend
more than $500,000 in the aggregate to procure or maintain such insurance, and
Sterling and KnowledgeWare will only be required to obtain as much comparable
insurance as is available for an aggregate expenditure of $500,000.
KnowledgeWare has received a binder for a one year directors' and officers'
liability insurance policy with an aggregate limit comparable to the limit
under KnowledgeWare's prior policy. If KnowledgeWare is acquired by Sterling
during the policy term, the policy converts into a three year "run-off" policy.
The premium for this policy is $600,000. Sterling and KnowledgeWare have agreed
that the payment of such premium by KnowledgeWare shall satisfy Sterling's
 
                                       52
<PAGE>
 
obligation to maintain or procure such liability insurance. See "The Merger--
Interests of Certain Persons in the Merger."
 
CONDITIONS
 
  The respective obligations of KnowledgeWare, Sterling and Merger Sub to
consummate the Merger are subject to the fulfillment of each of the following
conditions, among others: (a) the Merger shall have been approved in the manner
required by law by the holders of the issued and outstanding shares of
KnowledgeWare capital stock entitled to vote thereon; (b) the waiting period
applicable to the consummation of the Merger under the HSR Act shall have
expired or been terminated; (c) none of the parties to the Merger Agreement
shall be subject to any order or injunction against the consummation of the
transactions contemplated by the Merger Agreement; and (d) the Registration
Statement shall have become effective under the Securities Act and no stop
order with respect thereto shall be in effect.
 
  The obligations of each of KnowledgeWare and Sterling to effect the Merger
are also subject to the satisfaction or waiver by the other party prior to the
Effective Time of the conditions, among others, that the other party shall have
performed all obligations required to be performed by it under the Merger
Agreement and the representations and warranties of the other party set forth
in the Merger Agreement shall be true in all material respects as of the
Effective Time. Sterling's obligation to effect the Merger is also subject to
the condition that each party shall have received the opinion of its tax
counsel that the Merger will be treated for federal income tax purposes as a
reorganization within the meaning of Section 368(a) of the Code, and that
KnowledgeWare, Sterling and Merger Sub will each be a party to that
reorganization within the meaning of Section 368(b) of the Code. The obligation
of KnowledgeWare to effect the Merger is also subject to the condition that
Sterling shall have entered into a Registration Rights Agreement (the
"Registration Rights Agreement") with each of the "affiliates" of KnowledgeWare
whereby Sterling undertakes to file a registration statement permitting the
affiliates to sell the Sterling Common Stock received in the Merger. Any party
to the Merger Agreement may waive any of the conditions to its obligation to
effect the Merger.
 
TERMINATION
 
  The Merger Agreement may be terminated and the Merger may be abandoned at any
time prior to the Effective Time, before or after the approval by the
stockholders of KnowledgeWare: (a) by the mutual consent of KnowledgeWare,
Sterling and Merger Sub by action of their respective Boards of Directors; (b)
by action of the Board of Directors of either Sterling or KnowledgeWare if (i)
the Merger shall not have been consummated by January 31, 1995, provided that
the terminating party shall not have breached in any material respect its
obligations under the Merger Agreement in any manner that shall have
proximately contributed to the failure so to consummate the Merger or (ii) the
approval of the Merger Agreement by KnowledgeWare's stockholders shall not have
been obtained; (c) by action of the Board of Directors of KnowledgeWare, if (i)
the Board of Directors of Sterling shall have withdrawn or modified in a manner
adverse to KnowledgeWare its approval or recommendation of the Merger Agreement
or the Merger, (ii) the average closing price for Sterling Common Stock on the
NYSE for five consecutive business days shall be $22.00 or less, or (iii) there
has been a material breach by Sterling or Merger Sub of any representation,
warranty, covenant or agreement contained in the Merger Agreement or the Stock
Option Agreement which is not curable or, if curable, is not cured within 30
days after written notice of such breach; or (d) by action of the Board of
Directors of Sterling, if (i) the Board of Directors of KnowledgeWare shall
have withdrawn or modified in a manner adverse to Sterling its approval or
recommendation of the Merger Agreement or shall have recommended to the
stockholders of KnowledgeWare an Acquisition Proposal, (ii) any person shall
have made an Acquisition Proposal for KnowledgeWare and certain conditions to
the consummation of the Merger cannot be or are not satisfied on or prior to
January 31, 1995 or (iii) there has been a material breach by KnowledgeWare of
any representation, warranty, covenant or agreement contained in the Merger
Agreement or the Stock Option Agreement which is not curable or, if curable, is
not cured within 30 days after written notice of such breach.
 
 
                                       53
<PAGE>
 
  In the event that any person shall have made an Acquisition Proposal for
KnowledgeWare and thereafter the Merger Agreement is terminated by either party
(other than pursuant to the breach of the Merger Agreement by Sterling), then
KnowledgeWare, if requested by Sterling, shall promptly, but in no event later
than two days after the date of such request, pay Sterling a fee of $2,900,000;
provided, however, that KnowledgeWare shall not be obligated to pay such fee
unless and until (a) any person (other than Sterling) (an "Acquiring Party")
has entered into a definitive agreement to acquire by purchase, merger,
consolidation, sale, assignment, lease, transfer or otherwise, a majority of
the voting power of the outstanding securities of KnowledgeWare or 50% or more
of the assets of KnowledgeWare; (b) there has been executed a definitive
agreement with respect to a consolidation, merger or similar transaction
between KnowledgeWare and an Acquiring Party which results in the reduction of
the ownership of securities of KnowledgeWare by KnowledgeWare stockholders
immediately prior to such transaction below 50% of the voting power of the
surviving entity (or if applicable, any entity in control of such Acquiring
Party); or (c) any Acquiring Party, or any "group" (as such term is defined
under Section 13(d) of the Exchange Act) acquires beneficial ownership of 50%
of the KnowledgeWare Common Stock whether by tender offer, exchange offer or
otherwise (any such transaction described in clauses (a) through (c) being a
"Business Combination").
 
EXPENSES
 
  Whether or not the Merger is consummated, all costs and expenses incurred in
connection with the Merger Agreement and the transactions contemplated thereby
shall be paid by the party incurring such expenses, except as otherwise
provided in the Merger Agreement.
 
AMENDMENT AND WAIVER
 
  Subject to the applicable provisions of the GBCC, the parties may modify or
amend the Merger Agreement by written agreement at any time prior to the
Effective Time. The conditions to each party's obligations to consummate the
Merger may be waived by such party in whole or in part to the extent permitted
by applicable law.
 
                           THE STOCK OPTION AGREEMENT
 
  The following is a brief summary of certain provisions of the Stock Option
Agreement, a copy of which is attached as Appendix C to this Proxy
Statement/Prospectus and is incorporated herein by reference. This summary is
qualified in its entirety by reference to the full text of the Stock Option
Agreement.
 
THE OPTION
 
  As a condition and an inducement to Sterling to enter into the Merger
Agreement, concurrently with the execution of the Merger Agreement,
KnowledgeWare and Sterling entered into the Stock Option Agreement, pursuant to
which KnowledgeWare granted to Sterling the Option to purchase up to 1,200,000
shares of KnowledgeWare Common Stock at an exercise price of $5.00 per share.
 
EXERCISE OF THE OPTION
 
  Sterling may exercise the Option, in whole or in part, at any time and from
time to time upon the occurrence of any of the following events (each such
event being an "Exercise Event"): (i)(a) the Merger Agreement shall have been
terminated by mutual consent of KnowledgeWare and Sterling, (b) an Acquisition
Proposal shall have been received by KnowledgeWare prior to such termination,
and (c) within twelve months after such termination, KnowledgeWare shall have
consummated a Business Combination with any person or entity (other than
Sterling); (ii) the Board of Directors of KnowledgeWare shall have withdrawn,
modified or changed its recommendation of the Merger Agreement in a manner
adverse to Sterling or shall have resolved to do any of the foregoing at a time
when Sterling is not in material breach of the Merger Agreement and, within
twelve months after termination of the Merger Agreement, KnowledgeWare shall
 
                                       54
<PAGE>
 
have consummated an Acquisition Proposal with any person or entity; (iii)(a) a
tender offer or exchange offer for 20% or more of the outstanding shares of
capital stock of KnowledgeWare shall have been commenced while the Merger
Agreement is in effect, (b) the Board of Directors of KnowledgeWare, within 10
business days thereafter, either fails to recommend against, or takes no
position with respect to, the acceptance of such offer by KnowledgeWare's
stockholders and such tender offer or exchange offer is consummated and (c)
Sterling shall have terminated the Merger Agreement; (iv)(a) any person shall
have acquired beneficial ownership or the right to acquire beneficial
ownership, or any group (as such term is defined under Section 13(d) of the
Exchange Act) shall have been formed (excluding any person who has executed a
Stockholder Agreement or any group of which such person is a member) which
beneficially owns, or has the right to acquire beneficial ownership, of 25% or
more of the then outstanding KnowledgeWare Common Stock while the Merger
Agreement is in effect, and (b) Sterling shall have terminated the Merger
Agreement; or (v)(a) the Merger Agreement shall have failed to receive the
requisite vote for approval by the stockholders of KnowledgeWare at the Special
Meeting, (b) at such time, an Acquisition Proposal shall have been made and the
Board of Directors of KnowledgeWare either fails to recommend against, or takes
no position with respect to, acceptance of such Acquisition Proposal, (c) at
the time of the Special Meeting, Sterling shall not have been in material
breach of the Merger Agreement, (d) the Merger Agreement shall have been
terminated, and (e) within twelve months after the termination, KnowledgeWare
consummates such Acquisition Proposal. None of such Exercise Events has
occurred as of the date of this Proxy Statement/Prospectus. IBM has waived its
rights of first refusal under certain agreements with KnowledgeWare and certain
other stockholders of KnowledgeWare with respect to the Merger and the Option.
 
EXPIRATION OF THE OPTION
 
  The Option expires and is of no further force and effect upon the earlier of:
(i) the Effective Time or (ii) twelve months following the first occurrence of
an Exercise Event.
 
ADJUSTMENTS OF NUMBER OF SHARES SUBJECT TO OPTION
 
  The number and type of securities subject to the Option will be adjusted for
any change in the KnowledgeWare Common Stock by reason of a stock dividend,
split-up, recapitalization, combination, exchange of shares or similar
transaction, so that Sterling shall receive upon exercise of the Option the
number and class of shares or other securities or property that Sterling would
have received if the Option had been exercised immediately prior to such event,
or on the record date therefor, as applicable. In the event that KnowledgeWare
shall enter into an agreement to (i) consolidate with or merge into any person,
other than Sterling or one of its subsidiaries, and shall not be the continuing
or surviving corporation, (ii) permit any person, other than Sterling or one of
its subsidiaries, to merge into KnowledgeWare and KnowledgeWare shall be the
continuing or surviving corporation, but, in connection with such merger, the
then outstanding shares of KnowledgeWare Common Stock shall be changed into or
exchanged for stock or other securities of KnowledgeWare or any other person or
cash or any other property or then outstanding shares of KnowledgeWare Common
Stock shall after such merger represent less than 50% of the outstanding shares
and share equivalents of the merged company or (iii) sell or otherwise transfer
all or substantially all of its assets to any person, other than Sterling or
one of its subsidiaries, then, and in each such case, proper provision shall be
made so that the Option shall be converted into, or exchanged for, an option to
acquire the same consideration received by the holders of KnowledgeWare Common
Stock pursuant to such a transaction.
 
REGISTRATION RIGHTS
 
  Sterling has the right (i) within three years after the closing of the
acquisition of the shares of KnowledgeWare Common Stock pursuant to the Option
or (ii) for 20 business days following the occurrence of either (a) a denial of
regulatory approval for Sterling to purchase such shares or (b) a failure to
obtain regulatory approval for such a purchase during the 12-month period
following the date Sterling notifies KnowledgeWare of its desire to exercise
the Option, to require KnowledgeWare to prepare and file up to
 
                                       55
<PAGE>
 
three registration statements under the Securities Act for the shares issued or
issuable upon exercise of the Option and to require KnowledgeWare to use its
best efforts to qualify such shares under any applicable state securities laws,
if necessary, for Sterling to be able to sell such shares.
 
                           THE STOCKHOLDER AGREEMENTS
 
  The following is a brief summary of certain provisions of the Stockholder
Agreements, a form of which is attached as Appendix D to this Proxy
Statement/Prospectus. This summary is qualified in its entirety by reference to
the full text of the form of Stockholder Agreement.
 
  Pursuant to the Stockholder Agreements, Francis A. Tarkenton, Tarkenton
Group, Inc., Donald P. Addington and James T. Martin, directors, officers
and/or stockholders of KnowledgeWare (each a "Stockholder") who as of August
31, 1994 beneficially owned in the aggregate 2,774,709 outstanding shares of
KnowledgeWare Common Stock, have each agreed that, until the earlier of (i) the
Effective Time or (ii) the date on which the Merger Agreement is terminated
(the earlier of such time and such date being referred to herein as the
"Stockholder Expiration Date"), the Stockholder will vote all of his or its
shares of KnowledgeWare Common Stock (the "Voting Shares"), (a) for approval
and adoption of the Merger Agreement and any other transaction contemplated by
the Merger Agreement, as such Merger Agreement may be modified or amended from
time to time (but not to reduce the Exchange Ratio), and (b) against any
action, omission or agreement which would impede or interfere with, or have the
effect of discouraging, the Merger, including, without limitation, any
Acquisition Proposal other than the Merger, and (c) in favor of all nominees in
the slate of directors nominated for election by a majority of KnowledgeWare's
non-management directors. Each Stockholder has also agreed that failure to vote
such shares in such manner shall result in the irrevocable appointment of
Sterling until termination of the Merger Agreement, as attorney and proxy to
vote and otherwise act with respect to all of his or its Voting Shares for the
purposes set forth above. Any such proxy will terminate on the Stockholder
Expiration Date.
 
  Each such Stockholder Agreement contains the agreement of the Stockholder
that, among other things, until the Stockholder Expiration Date, he or it: (a)
will not, and will not agree to, sell, transfer, pledge, hypothecate, encumber,
assign, tender or otherwise dispose of (any one or more of which, a "transfer")
any of his or its Voting Shares unless, in connection with such transfer, the
transferee agrees to be bound by the terms of the transferor's Stockholder
Agreement; (b) will not grant, other than as contemplated by the Stockholder
Agreement, any powers of attorney or proxies or consents in respect of any of
his or its Voting Shares, deposit any of his or its Voting Shares into a voting
trust, enter into a voting agreement with respect to any of his or its Voting
Shares or otherwise restrict the ability of the holder of any of the shares of
KnowledgeWare Common Stock freely to exercise all voting rights with respect
thereto; and (c) will not initiate, solicit or encourage, directly or
indirectly, any inquiries or the making or implementation of any Acquisition
Proposal or engage in any negotiations concerning, or provide any confidential
information or data to, or have any discussions with, any person relating to an
Acquisition Proposal, or otherwise facilitate any effort or attempt to make or
implement an Acquisition Proposal.
 
  Each Stockholder Agreement contains the Stockholder's representations and
warranties relating to, among other things, (a) if applicable, its corporate
organization and similar matters, (b) the absence of conflicts under its
charter or bylaws (if applicable) or of defaults or required consents under
contracts, commitments or other obligations, (c) the execution, delivery and
enforceability of his or its Stockholder Agreement, and (d) the absence of
irrevocable proxies with respect to his or its Voting Shares.
 
  Each Stockholder Agreement applies to all Voting Shares owned by the
Stockholder, including (a) any additional shares as to which the Stockholder
acquires voting rights after the date of his or its Stockholder Agreement and
(b) any shares of capital stock resulting from a stock dividend, stock split,
recapitalization, reclassification, combination or exchange of shares of
capital stock.
 
                                       56
<PAGE>
 
                              THE ESCROW AGREEMENT
 
  The following is a brief summary of certain provisions of the Escrow
Agreement, a form of which is included herein as Exhibit 4.4 to the Merger
Agreement. The summary is qualified in its entirety by reference to the full
text of the form of Escrow Agreement.
 
GENERAL
 
  Pursuant to the Merger Agreement, prior to the Effective Time, Sterling,
KnowledgeWare, the Escrow Agent and the Representative will enter into the
Escrow Agreement, pursuant to which the Escrowed Shares will be placed in
escrow with the Escrow Agent. Any disbursements or distributions made by the
Escrow Agent to the holders of KnowledgeWare Common Stock as of the Effective
Time pursuant to the Escrow Agreement will be made in accordance with their
relative record ownership of KnowledgeWare Common Stock as of the Effective
Time. The interests of the holders of KnowledgeWare Common Stock in the Escrow
Agreement and in the Escrowed Shares are not transferable except by operation
of law.
 
DISBURSEMENT OF ESCROWED SHARES
 
  Pursuant to the Escrow Agreement, if prior to the second anniversary of the
Effective Time Sterling delivers to the Escrow Agent written notice (a
"Sterling Notice") of a claim for indemnification for Damages, on the twentieth
business day following receipt of such notice, the Escrow Agent will, at
Sterling's direction, transfer to Sterling either (i) a number of Escrowed
Shares having a value equal to such Damages or (ii) proceeds from the sale of
Escrowed Shares equal to such Damages unless within that time period the
Representative delivers to the Escrow Agent a written notice disputing
Sterling's claim. The number of Escrowed Shares to be transferred or sold shall
be determined by dividing the dollar amount of Damages by the most recently
reported closing sale price per share of the Sterling Common Stock preceding
the date of the Sterling Notice. If the Representative delivers a dispute
notice, the Escrow Agent will retain the Escrowed Shares until either (i) the
Escrow Agent receives joint instructions from Sterling and the Representative
or (ii) the dispute is settled by litigation. Within 30 days prior to the
second anniversary of the Effective Time, Sterling may deliver to the Escrow
Agent a notice (a "Contingent Claim Notice") that Sterling believes there exist
one or more Actions ("Contingent Actions") with respect to which Sterling
believes it will be entitled to indemnification for Damages subsequent to the
second anniversary of the Effective Time, together with Sterling's reasonable
good faith estimate of the maximum amount of Damages for which it would be
entitled to indemnification.
 
  On the second anniversary of the Effective Time, the Escrow Agent will
disburse to the holders of KnowledgeWare Common Stock as of the Effective Time
any Escrowed Shares remaining subject to the Escrow Agreement, other than
shares that are the subject of a Sterling Notice or a Contingent Claim Notice.
With respect to any Escrowed Shares remaining subject to the Escrow Agreement
due to a Contingent Claim Notice, if the related Contingent Action has not been
resolved or is not subject to litigation by the fourth anniversary of the
Effective Time, such Escrowed Shares will be disbursed to the holders of
KnowledgeWare Common Stock as of the Effective Time.
 
  Each KnowledgeWare stockholder will recognize gain or loss upon return to, or
sale on behalf of, Sterling of any Escrowed Shares in an amount equal to the
difference between the then value of such Escrowed Shares and the KnowledgeWare
stockholder's adjusted tax basis in such shares. KnowledgeWare stockholders
generally will not be entitled to claim a loss based upon the value of the
shares returned to, or sold on behalf of, Sterling. Instead, the adjusted tax
basis in the remaining shares of Sterling Common Stock will be increased by the
then value of the shares returned or sold. See "The Merger--Certain Federal
Income Tax Consequences."
 
                                       57
<PAGE>
 
VOTING AND DIVIDEND RIGHTS
 
  In the event that Sterling pays dividends (within the meaning of Section
301(c)(1) of the Code) in respect of Sterling Common Stock during the term of
the Escrow Agreement, the Escrow Agent shall forward such dividends to the
holders of KnowledgeWare Common Stock as of the Effective Time. If during the
term of the Escrow Agreement, Sterling makes any other distribution, or in the
event Sterling effects a stock dividend, stock split or other recapitalization,
any property or securities distributable with respect to the Escrowed Shares
shall be retained by the Escrow Agent and made part of the Escrowed Shares.
 
  With respect to any matter on which stockholders of Sterling have a right to
vote, the Escrow Agent, on behalf of the holders of KnowledgeWare Common Stock
as of the Effective Time, shall have the right to vote, or not vote, all or any
portion of Escrowed Shares in such manner as it deems appropriate; provided
that, at Sterling's expense, the Escrow Agent shall promptly cause to be
forwarded to the holders of KnowledgeWare Common Stock as of the Effective Time
copies of any proxy statements and other soliciting materials, and the Escrow
Agent shall vote the applicable portion of the Escrowed Shares in accordance
with any written instructions timely received by the Escrow Agent from any such
holder.
 
THE REPRESENTATIVE
 
  The duties of the Representative will be limited to the observance of the
express provisions of the Escrow Agreement. The Representative will be
compensated for its services under the Escrow Agreement at hourly rates, out of
the Escrowed Shares, upon submission of invoices therefor. The Representative
also will be indemnified, out of the Escrowed Shares, for any loss or damages
it may incur as a result of its services under the Escrow Agreement, except any
such loss or damages arising out of the Representative's willful misconduct.
 
  The Representative may resign upon 30 days' written notice, and may be
removed, with or without cause, by holders of KnowledgeWare Common Stock who as
of the Effective Time owned of record at least 51% of the KnowledgeWare Common
Stock. In the event of such resignation or removal, holders of KnowledgeWare
Common Stock who as of the Effective Time owned of record at least 51% of the
KnowledgeWare Common Stock may designate a substitute representative or, if no
such substitute is designated, the Representative may appoint its successor
(which must be reasonably acceptable to Sterling).
 
               PRO FORMA COMBINED CONDENSED FINANCIAL INFORMATION
 
  The accompanying unaudited pro forma combined condensed financial statements
assume the Merger is accounted for as a purchase of KnowledgeWare by Sterling.
The pro forma combined condensed financial statements are based on the
historical financial statements of Sterling and KnowledgeWare incorporated by
reference in this Proxy Statement/Prospectus. The pro forma combined condensed
balance sheet assumes the Merger had been consummated on June 30, 1994. The pro
forma combined condensed statements of operations assume the Merger had been
consummated as of October 1, 1992.
 
  The pro forma information is presented for illustrative purposes only and is
not necessarily indicative of the operating results or financial position that
would have occurred if the Merger had been consummated as presented in the
accompanying unaudited pro forma combined condensed financial statements, nor
is it necessarily indicative of the future results of operations. The pro forma
adjustments and the assumptions on which they are based are described in the
accompanying Notes to Unaudited Pro Forma Combined Condensed Financial
Statements.
 
  These pro forma combined condensed financial statements should be read in
conjunction with the historical consolidated financial statements and the
related notes thereto of Sterling and KnowledgeWare incorporated herein by
reference.
 
                                       58
<PAGE>
 
                            STERLING SOFTWARE, INC.
 
                   PRO FORMA COMBINED CONDENSED BALANCE SHEET
 
                                 JUNE 30, 1994
                                 (IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                                          PURCHASE
                                                         ACCOUNTING
                                 STERLING  KNOWLEDGEWARE ADJUSTMENTS        PRO FORMA 
                                HISTORICAL  HISTORICAL    (NOTE 2)          COMBINED  
                                ---------- ------------- -----------        --------- 
<S>                             <C>        <C>           <C>                <C>       
Current assets:                                                        ++
  Cash and cash equivalents...   $106,865    $  8,519     $(15,766)(d)  ++  $ 99,318  
                                                              (300)(e) ++             
  Marketable securities.......     34,710          --           --            34,710  
  Accounts and notes                                                                  
   receivable, net............    113,616      37,532           --           151,148  
  Deferred income tax asset...     10,158       3,356        4,800 (f)        18,314  
  Prepaid expenses and other                                                          
   current assets.............     10,676       3,776           --            14,452  
                                 --------    --------     --------          --------  
    Total current assets......    276,025      53,183      (11,266)          317,942  
Property and equipment, net...     32,752      21,825       (5,000)(c)        49,577  
Computer software, net........     60,303      28,382       (3,382)(c) ++             
                                                            (3,000)(f)  ++    82,303  
Noncurrent deferred income tax                                         ++             
 asset, net...................      3,734          --           --             3,734  
Excess cost over net assets                                                           
 acquired, net................     52,398      14,616        7,842 (c)        74,856  
Other assets..................     25,173       1,638           --            26,811  
Investment in and advances to                                                         
 KnowledgeWare................         --          --       97,811 (a) ++             
                                                           (45,460)(c)  ++        --  
                                                           (52,351)(b) ++             
                                 --------    --------     --------          --------  
Total assets..................   $450,385    $119,644     $(14,806)         $555,223  
                                 ========    ========     ========          ========  
Current liabilities:                                                                  
  Notes payable and current                                                           
   portion of long-term debt..   $  9,043    $ 17,393     $(15,766)(d)      $ 10,670  
  Accounts payable and accrued                                         ++             
   liabilities................     75,461      22,809       25,000 (a)  ++   132,270  
                                                             9,000 (f) ++             
  Deferred revenue............     66,582      22,734           --            89,316  
                                 --------    --------     --------          --------  
    Total current liabilities.    151,086      62,936       18,234           232,256  
Long-term debt................    116,267         836           --           117,103  
Other noncurrent liabilities..     27,602       3,521           --            31,123  
Stockholders' equity:                                                                 
  Preferred stock.............         20          --           --                20  
  Common stock................      2,202      72,548          241 (a)         2,443  
                                                           (72,548)(b) ++             
  Additional paid-in capital..    191,174          --       54,532 (a)  ++   245,406  
                                                              (300)(e) ++             
  Accumulated deficit.........    (18,748)    (20,197)     (46,000)(c) ++             
                                                            20,197 (b)  ++   (71,948) 
                                                            (7,200)(f) ++             
  Less: Treasury stock........    (19,218)         --       18,038 (a)        (1,180) 
                                 --------    --------     --------          --------  
    Total stockholders'                                                               
     equity...................    155,430      52,351      (33,040)          174,741  
                                 --------    --------     --------          --------  
Total liabilities and                                                                 
 stockholders' equity.........   $450,385    $119,644     $(14,806)         $555,223  
                                 ========    ========     ========          ========  
Shares of common stock                                                                
 outstanding..................     20,214                    2,407            22,621  
                                 ========                 ========          ========   
</TABLE>
 
                            See accompanying notes.
 
                                       59
<PAGE>
 
                            STERLING SOFTWARE, INC.
 
             PRO FORMA COMBINED CONDENSED STATEMENTS OF OPERATIONS
 
                    FOR THE NINE MONTHS ENDED JUNE 30, 1994
                     (IN THOUSANDS, EXCEPT PER SHARE DATA)
 
<TABLE>
<CAPTION>
                                                            KNOWLEDGEWARE
                                            ----------------------------------------------
                              STERLING                    DEDUCT HISTORICAL    PRO FORMA    PURCHASE
                             HISTORICAL      HISTORICAL      THREE MONTHS     NINE MONTHS  ACCOUNTING
                          NINE MONTHS ENDED  YEAR ENDED         ENDED            ENDED     ADJUSTMENTS   PRO FORMA
                            JUNE 30, 1994   JUNE 30, 1994 SEPTEMBER 30, 1993 JUNE 30, 1994  (NOTE 3)     COMBINED
                          ----------------- ------------- ------------------ ------------- -----------   ---------
<S>                       <C>               <C>           <C>                <C>           <C>           <C>
Revenue:
 Products...............      $122,148        $ 71,294         $19,147         $552,147                  $174,295
 Product support........        98,065          39,698           9,472           30,226                   128,291
 Services...............       117,913          21,499           4,605           16,894                   134,807
                              --------        --------         -------         --------                  --------
                               338,126         132,491          33,224           99,267                   437,393
Costs and expenses:
 Cost of sales:
 Products and product                                                                                  ++
  support...............        46,886          22,259           4,768           17,491      $  (3) (a) +  64,329
                                                                                               (45) (b) ++
                                                                                                       ++
 Services...............        79,360          18,389           3,682           14,707         (9) (b)    94,058
 Selling, general and
  administrative........       123,461          86,743          16,899           69,844                   193,305
 Product development and
  enhancement...........        23,439          24,196           6,155           18,041                    41,480
                              --------        --------         -------         --------      ------      --------
   Total costs and
    expenses............       273,146         151,587          31,504          120,083         (57)      393,172
                              --------        --------         -------         --------      ------      --------
Income (loss) before
 other income (expense),
 and income taxes.......        64,980         (19,096)          1,720          (20,816)         57        44,221
Other income (expense)..        (1,804)             66            (185)             251         386 (c)    (1,167)
                              --------        --------         -------         --------      ------      --------
Income (loss) before
 income taxes...........        63,176         (19,030)          1,535          (20,565)        443        43,054
Provision (benefit) for
 income taxes...........        23,650              --             153             (153)                   23,497
                              --------        --------         -------         --------      ------      --------
Net income (loss).......      $ 39,526        $(19,030)        $ 1,382         $(20,412)     $  443      $ 19,557
                              ========        ========         =======         ========      ======      ========
Net income (loss) per
 common share (Note 4):
 Primary................      $   1.75                                                                   $   0.79
                              ========                                                                   ========
 Fully diluted..........      $   1.60                                                                   $   0.79
                              ========                                                                   ========
Shares used to compute
 per share data (Note
 4):
 Primary................        22,568                                                        2,272        24,840
                              ========                                                       ======      ========
 Fully diluted..........        26,624                                                       (1,784)       24,840
                              ========                                                       ======      ========
</TABLE>
 
                            See accompanying notes.
 
                                       60
<PAGE>
 
                            STERLING SOFTWARE, INC.
 
             PRO FORMA COMBINED CONDENSED STATEMENTS OF OPERATIONS
 
                     FOR THE YEAR ENDED SEPTEMBER 30, 1993
                     (IN THOUSANDS, EXCEPT PER SHARE DATA)
 
<TABLE>
<CAPTION>
                                                                   KNOWLEDGEWARE
                         STERLING      ----------------------------------------------------------------------  PURCHASE
                        HISTORICAL      HISTORICAL   DEDUCT HISTORICAL    ADD HISTORICAL       PRO FORMA      ACCOUNTING
                        YEAR ENDED      YEAR ENDED   THREE MONTHS ENDED THREE MONTHS ENDED     YEAR ENDED     ADJUSTMENTS
                     SEPTEMBER 30,1993 JUNE 30, 1993 SEPTEMBER 30, 1992 SEPTEMBER 30, 1993 SEPTEMBER 30, 1993  (NOTE 3)
                     ----------------- ------------- ------------------ ------------------ ------------------ -----------
<S>                  <C>               <C>           <C>                <C>                <C>                <C>
Revenue:
 Products..........      $150,473        $ 80,307         $19,950            $19,147            $ 79,504
 Product support...       121,268          35,256           8,344              9,472              36,384
 Services..........       140,054          13,198           1,663              4,605              16,140
                         --------        --------         -------            -------            --------
                          411,795         128,761          29,957             33,224             132,028
Costs and expenses:
 Cost of sales:
  Products and                                                                                                             ++
  product support..        65,998          17,051           2,982              4,768              18,837        $ 1,410 (a) ++
                                                                                                                    757 (b)++
 Services..........       105,133           7,487           1,084              3,682              10,085            105 (b)
 Sales, general and
  administrative...       168,174          80,919          17,246             16,899              80,572
 Product
  development and
  enhancement......        26,630          28,867           7,642              6,155              27,380
 Restructuring
  charges..........        91,260          21,976             --                 --               21,976
                         --------        --------         -------            -------            --------        -------
   Total costs and
    expenses.......       457,195         156,300          28,954             31,504             158,850          2,272
                         --------        --------         -------            -------            --------        -------
Income (loss)
 before other
 income (expense)
 income taxes,
 extraordinary item
 and cumulative
 effect of a change
 in accounting
 principle.........       (45,400)        (27,539)          1,003              1,720             (26,822)        (2,272)
Other income (ex-
 pense)............        (2,933)            340             228               (185)                (73)           515 (c)
                         --------        --------         -------            -------            --------        -------
Income (loss)
 before income
 taxes,
 extraordinary item
 and cumulative
 effect of a change
 in accounting
 principle ........       (48,333)        (27,199)          1,231              1,535             (26,895)        (1,757)
Provision (benefit)
 for income taxes..       (14,983)         (1,400)            437                153              (1,684)
                         --------        --------         -------            -------            --------        -------
Income (loss)
 before
 extraordinary item
 and cumulative
 effect of a change
 in accounting
 principle.........      $(33,350)       $(25,799)        $   794            $ 1,382            $(25,211)       $(1,757)
                         ========        ========         =======            =======            ========        =======
Income (loss) per
 common share
 before
 extraordinary item
 and cumulative
 effect of a change
 in accounting
 principle (Note
 4):
 Primary...........      $  (2.00)
                         ========
 Fully diluted.....      $  (2.00)
                         ========
Shares used to
 compute per share
 data (Note 4):
 Primary...........        17,200                                                                                 2,407
                         ========                                                                               =======
 Fully diluted.....        17,200                                                                                 2,407
                         ========                                                                               =======

<CAPTION>                         
                     PRO FORMA    
                     COMBINED     
                     ----------   
<S>                  <C>          
Revenue:                          
 Products..........  $229,977     
 Product support...   157,652     
 Services..........   156,194     
                     ----------   
                      543,823     
Costs and expenses:               
 Cost of sales:                   
  Products and                     
  product support..    87,002

 Services..........   115,323
 Sales, general and
  administrative...   248,746
 Product
  development and
  enhancement......    54,010
 Restructuring
  charges..........   113,236
                     ----------
   Total costs and
    expenses.......   618,317
                     ----------
Income (loss)
 before other
 income (expense)
 income taxes,
 extraordinary item
 and cumulative
 effect of a change
 in accounting
 principle.........   (74,494)
Other income (ex-
 pense)............    (2,491)
                     ----------
Income (loss)
 before income
 taxes,
 extraordinary item
 and cumulative
 effect of a change
 in accounting
 principle ........   (76,985)
Provision (benefit)
 for income taxes..   (16,667)
                     ----------
Income (loss)
 before
 extraordinary item
 and cumulative
 effect of a change
 in accounting
 principle.........  $(60,318)
                     ==========
Income (loss) per
 common share
 before
 extraordinary item
 and cumulative
 effect of a change
 in accounting
 principle (Note
 4):
 Primary...........  $  (3.13)
                     ==========
 Fully diluted.....  $  (3.13)
                     ==========
Shares used to
 compute per share
 data (Note 4):
 Primary...........    19,607
                     ==========
 Fully diluted.....    19,607
                     ==========
</TABLE>
 
                            See accompanying notes.
 
                                      61


<PAGE>
 
                               STERLING SOFTWARE
           NOTES TO PRO FORMA COMBINED CONDENSED FINANCIAL STATEMENTS
 
1.GENERAL
 
   The Merger is expected to be accounted for as a purchase. The pro forma
   combined condensed financial statements reflect the issuance of 2,407,005
   shares of Sterling Common Stock for an aggregate 14,562,381 shares of
   KnowledgeWare Common Stock (KnowledgeWare Common Stock outstanding as of
   June 30, 1994) based on an Exchange Ratio of .1653 shares of Sterling Common
   Stock for each share of KnowledgeWare Common Stock. Total shares reflected
   as issued and outstanding include the Escrowed Shares. The actual number of
   shares of Sterling Common Stock to be issued will be determined at the
   Effective Time of the Merger based on the Exchange Ratio and the number of
   shares of KnowledgeWare Common Stock then outstanding. The purchase price of
   the Merger reflected in the accompanying pro forma financial statements is
   $97.8 million which represents the estimated value of the Sterling Common
   Stock to be issued (based on a price of $30.25 per share), plus costs
   related to the combination described below.
 
  Substantial costs are expected to occur as a result of the combination of
  the two companies. The costs directly related to the acquisition of
  KnowledgeWare are included in the aggregate cost of the Merger and are
  expected to consist of the following:
 
<TABLE>
      <S>                                                               <C>
      Investment advisor, legal, accounting and other professional
       fees............................................................ $ 2,800
      Out of pocket costs related to due diligence and acquisition
       evaluation......................................................   2,500
      KnowledgeWare employee severance and benefits....................   8,500
      Elimination of duplicate facilities and leases of KnowledgeWare..   7,700
      Other merger related liabilities.................................   3,500
                                                                        -------
                                                                        $25,000
                                                                        =======
</TABLE>
 
  Such costs, including the write-off of costs related to certain software
  products which will not be actively marketed by the combined company,
  related to Sterling's current operations are expected to be approximately
  $12 million and will be charged to the results of operations of the
  combined company upon consummation of the Merger.
 
  The purchase price has been allocated to the consolidated assets and
  liabilities of KnowledgeWare for purposes of the Pro Forma Combined Balance
  Sheet based on preliminary estimates of fair values. These estimates were
  determined by Sterling management based primarily on information furnished
  by management of KnowledgeWare and a preliminary valuation of acquired
  software and research and development prepared by Burton Grad Associates,
  Inc. The final allocation of the purchase price will not be determined
  until after consummation of the Merger and will be based on a complete
  evaluation of the assets and liabilities of KnowledgeWare as acquired.
  Accordingly, the information presented herein may differ from the actual
  purchase price allocation.
 
2.PRO FORMA COMBINED CONDENSED BALANCE SHEET
 
  The accompanying pro forma combined condensed balance sheet assumes the
  Merger was consummated on June 30, 1994 and reflects the following pro
  forma adjustments:
 
  (a) To record the aggregate cost of the Merger, reflecting the value of
      Sterling Common Stock issued and costs related to the combination
      described in Note 1 above.
  (b) To eliminate KnowledgeWare's historical stockholders' equity balances.
 
                                       62
<PAGE>
 
  (c) To record the aggregate cost of the Merger of $97.8 million as follows:
 
<TABLE>
             <S>                         <C>
             Working capital (deficit).  $(9,753)
             Property and equipment....   16,825
             Software..................   25,000
             Purchased research and
              development costs charged
              to expense...............   46,000
             Other assets..............    1,638
             Other liabilities.........   (4,357)
             Excess cost over net
              assets acquired..........   22,458
                                         -------
                                         $97,811
                                         =======
</TABLE>
 
  (d) To record the repayment of all amounts outstanding under
      KnowledgeWare's line of credit agreement with IBM Credit.
 
  (e) To record direct costs associated with registering the shares of
      Sterling Common Stock.
 
  (f) To record costs associated with Sterling's elimination duplicate
      facilities, severance costs relating to termination of certain
      employees and the writeoff of costs relating to certain software
      products which will not be actively marketed by the combined company,
      net of related deferred income tax benefit.
 
3.PRO FORMA COMBINED CONDENSED STATEMENT OF OPERATIONS
 
   The pro forma combined condensed statements of operations have been prepared
   as if the Merger was consummated as of October 1, 1992 and reflects the
   following pro forma adjustments:
 
  (a) To record amortization of purchased software computed using the the
      straight-line method over the remaining estimated economic life (five
      years).
  (b) To record the amortization of excess cost of net assets acquired over
      fifteen years.
  (c) To record the reduction of interest expense to reflect repayment of the
      IBM Credit line of credit, partially offset by the reduction of
      investment income to reflect the reduction of cash investments.
 
4.PRO FORMA COMBINED EARNINGS PER COMMON SHARE
 
  The pro forma combined primary earnings per common share data is computed
  by dividing pro forma income (loss) before extraordinary items and
  cumulative effect of change in accounting principle, adjusted for preferred
  stock dividend requirements, by the weighted average number of common
  shares and common share equivalents represented by stock options and
  warrants, if such stock options and warrants have a dilutive effect in the
  aggregate. For purposes of this computation, income applicable to common
  stockholders is adjusted to reflect use of net cash proceeds on the assumed
  exercise of stock options and warrants to purchase outstanding long-term
  debt. Additionally, income applicable to common stockholders has been
  reduced to reflect combined pro forma preferred dividends of $.1 million
  and $1.0 million, for the nine months ended June 30, 1994 and the year
  ended September 30, 1993, respectively.
 
  The combined pro forma fully diluted earnings per common share computations
  assume, in addition, the conversion of Sterling's 5 3/4% Convertible
  Subordinated Debentures due 2003 (the "5 3/4% Debentures") in the 1994
  computations, and the conversion of Sterling's 8% Convertible Subordinated
  Debentures due 2001 (the "8% Debentures") and the conversion of the 5 3/4%
  Debentures in the 1993 computations, if such conversions have a dilutive
  effect. Upon assumed conversion of Sterling's convertible debentures,
  income applicable to common stockholders is adjusted to reflect the
  elimination of after tax interest expense related to such debentures. For
  purposes of these computations, income applicable to common stockholders is
  also adjusted to reflect use of net cash proceeds on the assumed exercise
  of stock options and warrants to purchase outstanding long-term debt.
 
  For the year ended September 30, 1993, neither the common share equivalents
  nor the assumed conversion of the convertible debentures had a dilutive
  effect on the pro forma loss per share calculations. Accordingly, the pro
  forma loss per share calculation for such period is based on the weighted
  average number of common shares outstanding during the period.
 
                                       63
<PAGE>
 
                CERTAIN INFORMATION REGARDING STERLING SOFTWARE
 
GENERAL
 
  Sterling was founded in 1981 and became a publicly owned corporation in 1983.
Sterling is a recognized worldwide supplier of software products and services
within the electronic commerce and enterprise software markets and also
provides technical professional services to certain sectors of the federal
government. Consistent with Sterling's decentralized operating style, each
major market is served by independently-operated business groups which consist
of divisions that focus on specific business niches within those markets.
 
  Sterling has steadily expanded its operations through internal growth and by
business and product acquisitions. In July 1993, Sterling completed the
acquisition of Systems Center for approximately $156 million in a stock-for-
stock transaction, and reorganized the combined company into four business
groups.
 
  .  The Electronic Commerce Group, headquartered in Dublin, Ohio, provides
     software and services to facilitate electronic commerce, defined by
     Sterling as the worldwide electronic interchange of business
     information. Product offerings include electronic data interchange
     ("EDI") software and services, data communications software and
     electronic payments software for financial institutions. Since 1975,
     Sterling has been a major provider of EDI network services, the
     cornerstone of electronic commerce, and Sterling is the leading EDI
     translation software vendor in North America.
 
  .  The Enterprise Software Group, headquartered in Woodland Hills,
     California, provides applications development and systems management
     software products for customers typically utilizing large IBM mainframe
     computers in conjunction with mid-range computers and networks of
     personal computers. Many of Sterling's products with their successive
     enhancements have been marketed for over 20 years. Addressing the needs
     of corporations as they move to client/server computing environments,
     Sterling has expanded its market focus to include products that operate
     on a variety of computer platforms and operating systems.
 
  .  The Federal Systems Group, headquartered in Foster City, California,
     provides technical professional services to the federal government under
     several multi-year contracts primarily in support of the National
     Aeronautics and Space Administration ("NASA") aerospace research
     projects and secure communications systems for the U.S. Department of
     Defense ("DoD"). Sterling has provided professional services to both the
     NASA Ames Research Center and to the DoD for over 25 years, and has
     established a development lab that uses the group's technical expertise
     to create products for Sterling's other business groups.
 
  .  The International Group, headquartered in London, England, is the
     exclusive channel to international markets for all Sterling products.
     The group operates through regional divisions representing Europe,
     Asia/Pacific, the Americas and other countries throughout the world. The
     products are sold and supported through 25 offices in 15 countries, and
     through trained agents and distributors. Approximately 27% of Sterling's
     revenue comes from its international operations.
 
  A large percentage of Sterling's business is recurring through annual and
multi-year product support agreements generally having terms ranging from one
to three years, fixed term product lease and rental agreements generally having
terms ranging from month-to-month to year-to-year, short-term electronic
commerce services agreements cancellable upon 30 days notice and multi-year
federal contracts generally having terms ranging from one to five years but,
like most federal contracts, with provisions for termination by the government
for convenience or for failure to obtain funding. In both 1993 and 1992,
recurring revenue represented 63% of Sterling's total revenue. Sterling's
customer base includes 94 of the 100 largest U.S. industrial corporations, as
ranked by 1992 sales reported in Fortune Magazine, and 98 of the top 100 U.S.
commercial banks, as ranked by deposits as of December 31, 1992 in the American
Banker magazine. At September 30, 1993, Sterling employed approximately 2,800
persons.
 
 
                                       64
<PAGE>
 
ELECTRONIC COMMERCE GROUP
 
  The Electronic Commerce Group is comprised of four divisions and provides
over 40 software and services offerings to facilitate electronic commerce.
Sterling is a leader in EDI network services in North America, the cornerstone
of electronic commerce, and is the leading EDI translation software provider in
North America. As of September 30, 1993, the group employed approximately 640
persons.
 
  Sterling's Network Services Division provides software products and services
under the COMMERCE family name. COMMERCE:Network combines the power of EDI, E-
mail, library services and file transfer into a full-service network to handle
store-and-forward data transfer. The network supports all major communications,
messaging and data standards including BSC, SNA, X.25, X.400, ANSI X.12 and
EDIFACT. Sterling recently released COMMERCE:Connection, a graphical user
interface to COMMERCE:Network that runs on desktop computers. Sterling also
just recently released COMMERCE:Complete, a package for desktop users that
includes all tools needed for electronic commerce. COMMERCE:Marketquest is
Sterling's market intelligence database offering that facilitates information
sharing among business partners. Sterling provides electronic commerce training
and education through its COMMERCE:Institute and COMMERCE:Resource offerings.
 
  Sterling's network services are marketed into targeted vertical industries.
Sterling's primary vertical industry markets include healthcare, insurance,
grocery, hardlines, retail, train-truck-ship transportation, automotive,
chemical and petroleum, paper and packaging, banking and government. At
September 30, 1993, Sterling's Network Services Division had approximately
7,400 network customers worldwide.
 
  Sterling's Interchange Software Division markets the group's EDI management
products under the GENTRAN family name. GENTRAN:Basic, the base EDI translation
product for a wide range of platforms including mainframe, midrange, UNIX and
desktop platforms, translates data from internal formats into standard formats
for EDI transmission and interprets incoming EDI communications back into
internal formats for processing. GENTRAN:Plus adds Sterling's communications
products to the GENTRAN: Basic offering. GENTRAN: Control prioritizes batch
processing by trading partner and/or document and GENTRAN:Realtime provides a
full set of powerful on-line translation and EDI management capabilities for
critical documents requiring immediate response. Two other GENTRAN products
provide additional EDI management functions--GENTRAN:Dataguard for data
security through encryption/decryption, and GENTRAN:Viewpoint to provide
increased efficiencies through exception management processing. In 1993, the
division released GENTRAN:Structure for customers needing application
integration and audit trail functions within the EDI environment for
proprietary data exchange. In August 1994, the division acquired American
Business Computer Company, which added the following new products to the
GENTRAN family: GENTRAN:Excel, which is similar in function to GENTRAN:Basic
and provides high performance EDI processing; and GENTRAN:Server, which
provides sophisticated electronic commerce gateway functionality including
advanced data routing, restart/recovery and exception condition monitoring.
 
  Sterling's Communications Software Division provides a range of data
communications products under the CONNECT family name. The CONNECT family is a
complete suite of integrated file transfer and communications management
solutions that support a wide variety of protocols, including BSC, SNA, X.25
and TCP/IP, on a variety of operating systems and hardware platforms, including
MVS, VSE, VM, TANDEM, VMS, AS/400, UNIX, MS-DOS and OS/2. The CONNECT products
provide full-function automated file transfer for clients of all industry
classifications. CONNECT:Direct is primarily used to move large volumes of data
with a focus on high performance that normally addresses intra-company
requirements. CONNECT:Mailbox is used primarily to move information between
corporations with a focus on wide connectivity. CONNECT:Queue is a scheduling
and workload balancing system for heterogeneous UNIX networks.
 
                                       65
<PAGE>
 
  Sterling's Banking Systems Division provides the VECTOR family of products
that automate several key areas associated with check processing in major
banks. Recently, the Banking Systems Division gained the leadership position in
the emerging market for financial EDI software for banks. The VECTOR:Connexion
product allows banks to expand their cash management services to include the
handling of financial EDI for corporate customers. Over 1,500 VECTOR systems
have been installed by approximately 500 financial institutions worldwide,
including 98 of the top 100 largest U.S. banks as ranked by deposits as of
December 31, 1992 in the American Banker magazine.
 
  Worldwide revenue from Sterling's Electronic Commerce market represented 28%,
25% and 22% of Sterling's revenue during 1993, 1992 and 1991, respectively.
 
ENTERPRISE SOFTWARE GROUP
 
  The Enterprise Software Group is comprised of four divisions that focus on
four enterprise software niche markets: applications management, storage
management, systems management and VM operations management. As of September
30, 1993, the group employed approximately 640 persons.
 
  The Applications Management Division markets products under the ANSWER family
name that address a wide range of applications development and information
management needs. ANSWER:Architect is a workstation-based tool for the
planning, analysis and design of applications. ANSWER:Zim is an open systems
applications development tool based on the Entity-Relationship model which
supports a number of relational data base systems and operating environments.
The ANSWER:Testpro product suite includes workstation-based tools that automate
the testing stage of applications development for mainframe, midrange and
desktop platforms. ANSWER:Journey is a tool that runs on desktop computers and
interfaces with other ANSWER products to create queries and reports from a
variety of mainframe resident data sources. ANSWER:Builder and ANSWER:Transact
are applications development tools for batch and online environments,
respectively, that operate on major IBM mainframe platforms.
 
  The Storage Management Division markets its products under the SAMS family
name. SAMS:Disk automates data management and optimizes data availability;
SAMS:Allocate automates allocation control; and SAMS:Compress provides data set
compression. SAMS:Vantage and SAMS:Expert are two new products that operate
with Sterling's other storage management products to provide complete
client/server storage management systems for the enterprise--SAMS:Vantage for
IBM mainframe MVS platforms and SAMS:Expert for local area networks. Finally,
SAMS:Save is an automated backup/restore product for desktop platforms.
 
  Sterling's systems management products are marketed by the Systems Management
Division under the SOLVE family name. These products provide systems operations
and systems administration management functions and address key issues
impacting the cost and service levels of enterprise information systems for the
networked enterprise. Sterling markets three families of integrated systems
management products. SOLVE for systems administration products are:
SOLVE:Problem, SOLVE:Change, SOLVE:Configuration, and SOLVE:Asset, and provide
users with the following respective functions: problem identification, tracking
and resolution; effective management of the system change process to minimize
end user impact; software and hardware configuration tracking, and business
management of computer assets and the services they deliver. The SOLVE for
systems operations product family incorporates SOLVE:Automation, which allows
users to focus systems operations on managing critical services and
consolidates distributed multi-system resources into a single service image.
The SOLVE for network management family includes SOLVE:Netmaster, which
automates SNA and other network management operations across a variety of
enterprise platforms; SOLVE:Stat, which reports on the status of critical SNA
network resources; and SOLVE:Monitor, which provides a graphical user interface
to SOLVE:Netmaster.
 
  Sterling also provides a complete line of systems management tools for the VM
operating system through its VM Software Division. IBM is positioning VM as a
major client/server platform and Sterling's VM
 
                                       66
<PAGE>
 
software product family includes 16 systems management products to provide
full-function systems management for the platform. VM:Manager is a complete
package of eleven individual and closely integrated Sterling products that
provide a comprehensive VM data center management solution. VM:Center is a
subset of VM:Manager that includes seven of the VM products.
 
  Worldwide revenue from Sterling's Enterprise Software market represented 45%,
48% and 49% of Sterling's revenue during 1993, 1992 and 1991, respectively.
 
FEDERAL SYSTEMS GROUP
 
  The Federal Systems Group is comprised of four divisions and provides highly
specialized technical professional services to sectors of the federal
government, generally under multi-year contracts. Its major customers are NASA
and the DoD. In 1993, Sterling began its 27th year of service to both NASA and
the DoD and secured new contracts and contract renewals with estimated total
revenue of approximately $34,700,000 over the next five years. Most of the
contracts represent an expansion or extension of ongoing services to NASA and
the DoD. Altogether, in 1993 the Federal Systems Group was working under 45
contracts, many of which are for multi-year terms.
 
  As of September 30, 1993, the group employed approximately 1,080 persons.
 
  Sterling's NASA Ames Division concentrates exclusively on scientific software
support and supercomputer facilities management at the NASA Ames Research
Center. The division's work includes software and support services on such
research projects as airborne and space flight systems, experimental and
theoretical aerodynamics, atmospheric sciences and astronomy, and data
acquisition and control systems. The division also manages the Advanced
Computational Facility (the supercomputer center) at NASA Ames, serving about
700 NASA scientists. Sterling is a consistent high performer at NASA Ames and,
in 1993, received "excellent" award fee scores on its most significant NASA
Ames contract.
 
  Sterling's Information Technology Division provides highly technical
professional services to military and intelligence agencies, specializing in
data handling, secure communications, networking and systems integration. The
division supports such varied technical projects as satellite data collection
and counter-terrorism, generally requiring top secret security clearances. Its
computing resources include data processing facilities approved for classified
operations, and substantial hardware and software configurations to support
software development activities in a distributed processing environment. In
1993, the division obtained 25 new or renewed contracts, representing revenue
of approximately $33,200,000 over the next five years.
 
  Sterling's Scientific Systems Division provides highly technical professional
services to civil sectors of the federal government, particularly in scientific
and engineering areas and including specialty software products in advanced
graphics, visualization and virtual reality. The division's contracts include
project applications such as spacecraft imagery and scientific data systems to
aviation research and transportation safety. Customers include Jet Propulsion
Laboratory, NASA Lewis Research Center and MIT Lincoln Laboratory. In 1993, the
division obtained nine new or renewed contracts, representing revenue of
approximately $1,500,000 over the next two years.
 
  Sterling's Federal Labs Division was formed in 1993 to function as a
development lab for other Sterling divisions, primarily by turning software
assets and expertise obtained in scientific projects into commercial products.
A number of potential software products have been identified from Sterling's
work on specialized systems for the federal government. One product that has
been commercialized is CONNECT:Queue which is marketed by Sterling's
Communications Software Division.
 
  Revenue from the Federal Systems Group represented 25% of Sterling's revenue
in each of the years 1993, 1992 and 1991.
 
                                       67
<PAGE>
 
INTERNATIONAL GROUP
 
  The International Group is the exclusive channel to international markets for
all Sterling products. Prior to 1993, all international sales were conducted
through separate divisions within the Electronic Commerce Group (then the EDI
Group) and the Enterprise Software Group (then the Systems Software Group).
Sterling organized a separate group during 1993 to focus on its international
expansion. The group operates through four regional divisions representing
Europe, Asia/Pacific, the Americas and distributors located throughout the
world. In addition to the four operating divisions, the group has an
international marketing organization with specialized product managers for each
product line.
 
  Each division is responsible for sales, marketing and first level support of
all Sterling products and services in their respective regions. The Europe
Division, headquartered in London, is responsible for direct sales in the
United Kingdom, France, Belgium, the Netherlands, Italy, Norway, Sweden,
Germany, Switzerland and Austria and has offices in 16 European cities. The
Pacific Division, headquartered in Tokyo with a major office in Sydney, is
responsible for direct sales in the Asia/Pacific countries, including Japan and
Australia. Canada is the responsibility of the Americas Division, which is
headquartered in Toronto with offices in Ottawa and Montreal. Sterling has a
separate division to manage approximately 50 agents and distributors, the
Distributor Division, headquartered in London. Major distributors are located
in Brazil, Italy, Japan, Korea, Spain, Taiwan and Venezuela.
 
  As of September 30, 1993, the group employed approximately 300 persons.
 
PRODUCT LICENSES
 
  Sterling's software products are generally licensed for perpetual use or for
a fixed term. Sterling typically does not sell or otherwise transfer title to
its software products. The license agreements generally restrict the use of the
product to designated sites or central processing units and prohibit
reproduction, transfer or disclosure of the product. However, some license
agreements may cover multiple sites or multiple central processing units at one
site.
 
PRODUCT SUPPORT
 
  Product support is available to Sterling customers, typically in the form of
annual contracts generally priced from 15% to 20% of the then-current license
fee. Sterling's product support contracts allow customers to receive updated or
enhanced versions of Sterling's software products as they become available, as
well as telephone access to Sterling's technical personnel.
 
SERVICES
 
  Sterling's services primarily include technical professional services in
support of federal government contracts provided through Sterling's federal
systems business and EDI network services provided through Sterling's
electronic commerce business.
 
PRODUCT DEVELOPMENT
 
  Sterling's product development programs in each of its businesses include the
enhancement of existing products and introduction of new products based upon
current and anticipated customer needs. Each division within Sterling's
Electronic Commerce Group and Enterprise Software Group has its own development
function. In addition, one of the divisions within the Federal Systems Group
functions solely as a software development lab responsible for productizing
technologies to be sold by other Sterling groups. Each development lab operates
as a profit center with revenues derived from intercompany royalties earned on
products sold in the domestic and international markets. This management
organization facilitates development cost control and focuses the development
function on the customer's needs. Approximately 350 Sterling employees were
engaged in product development at September 30, 1993. Product development costs
 
                                       68
<PAGE>
 
in 1993, 1992 and 1991 were $50,360,000, $49,701,000 and $45,181,000,
respectively, of which Sterling capitalized $23,730,000, $24,617,000 and
$20,636,000, respectively, as the cost of developing and testing new or
significantly enhanced software products.
 
SALES AND MARKETING
 
  As part of its marketing strategy, Sterling conducts its sales and marketing
activities in multiple software divisions focused on specific product markets.
Sterling sells its products and services through a combination of direct sales
and telesales, and in certain countries, independent agents and distributors.
The use of telesales has proven effective in reaching customers at a minimal
cost. Each division within the Electronic Commerce Group and Enterprise
Software Group has its own U.S. sales and marketing organizations. In addition,
Sterling's International Group has its own sales and marketing functions to
focus specifically on the international marketplace for each of Sterling's
product lines. At September 30, 1993, Sterling employed approximately 250 sales
representatives.
 
OTHER INFORMATION
 
  Other information concerning Sterling's business, securities and financial
condition is incorporated by reference from its reports, filed with the
Commission. See "Incorporation of Certain Documents by Reference."
 
MERGER SUB
 
  Merger Sub is a corporation recently organized under the laws of the State of
Georgia solely for the purpose of effecting the Merger. It has no material
assets and has not engaged in any activities except in connection with the
Merger.
 
                  CERTAIN INFORMATION REGARDING KNOWLEDGEWARE
 
GENERAL
 
  KnowledgeWare designs, develops, markets and supports a variety of solutions
and services for the development of a broad range of business applications from
individual support systems to departmental and mission critical enterprise-wide
systems and applications. Through a combination of development, acquisitions
and strategic alliances/partnerships, KnowledgeWare offers technology in a
variety of tool categories including "I-CASE" (integrated computer-aided
software engineering) and visual application development tools for open,
heterogenous client/server, midrange and mainframe computing environments.
KnowledgeWare's revenues also include related consulting services, project
management, training and methodology.
 
  KnowledgeWare's product line includes the Application Development Workbench,
a comprehensive, I-CASE development solution; ObjectView, a visual development
tool for creating Windows-based client/server applications that access multiple
distributed databases; Flashpoint, a Windows-based tool for quickly creating
new graphical user interfaces for legacy applications, as well as integrating
data from a variety of applications at the desktop; Legacy Workbench, a
comprehensive set of tools that accelerate the maintenance, redesign, and
migration of existing mainframe-based applications; MAXIM, an object-oriented
PC-based tool for business process reengineering; ClearAccess, a graphical tool
for end-user database queries and reports; and ClearManager, a client/server
management tool for monitoring, controlling and supporting data access
activities.
 
  KnowledgeWare markets its products to a wide range of developers and users
within financial, governmental, telecommunications, manufacturing, utility and
other organizations worldwide. KnowledgeWare product users may include
professional developers within information systems departments;
 
                                       69
<PAGE>
 
casual developers who have programming skills but are not employed as full-time
developers; power users who build applications without writing any code to
construct customer queries and reports as well as create and update databases;
and end users of applications and reports developed with KnowledgeWare
products.
 
  ObjectView was added to KnowledgeWare's product portfolio as part of its
acquisition of Matesys Mathematic Systems S.A. ("Matesys") and its subsidiary,
Matesys Corp. during fiscal year 1993. In connection with the acquisition,
KnowledgeWare issued 900,000 shares of its common stock in exchange for the
Matesys stock. The acquisition was accounted for by KnowledgeWare as a pooling
of interest.
 
  Matesys Corp. had approximately twenty employees and was based in Larkspur,
California; Matesys was based in Paris. ObjectView was initially introduced in
February 1991 and more than 3,000 copies of Version 1 were shipped. Version 2
was announced by Matesys in October 1992, and was first shipped by
KnowledgeWare in April 1993. During fiscal year 1994, KnowledgeWare released
ObjectView 3.0 and ObjectView Enterprise, new releases which provide workgroup
support for teams of developers working concurrently on large-scale projects
through an open object repository. ObjectView Enterprise boosts developer
productivity by facilitating reuse of application objects and logic.
KnowledgeWare also released ObjectView Desktop, a visual development tool
scaled for desktop developers who want comprehensive, yet affordable visual
development environments.
 
  As part of a strategic focus on service and support, KnowledgeWare in
November 1992 formed a new Professional Services division and acquired
Michigan-based Computer and Engineering Consultants, Ltd. ("CEC").
KnowledgeWare provides consulting support for new application development,
business process engineering, and applications maintenance and reengineering.
The acquisition of CEC also brought the Foresight methodology into the
KnowledgeWare product portfolio. Foresight is embedded within the Application
Development Workbench encyclopedia and is an automated methodology management
tool to guide development based on tested methods and techniques.
 
  KnowledgeWare expanded its distribution channels to include both a direct
sales force as well as indirect sales through value-added resellers such as
systems integrators and through a telesales program. The Client/Server Alliance
Program, or "CAP", supports a group of systems integrators and consulting
companies that develop client/server solutions for customers. CAP includes
products, services, support, and training to help systems integrators be
successful with various KnowledgeWare tools. Products currently available under
the program are ObjectView and Flashpoint. More than 200 systems integrators
have become CAP members through June 30, 1994. Based on disappointing results,
the CAP program is being de-emphasized in fiscal 1995, and other indirect
channels are being examined.
 
  To assume direct responsibility of sales, marketing, and support of its
products in Europe, KnowledgeWare acquired Ernst & Young's CASE distributor
business of KnowledgeWare products in Belgium, Denmark, Finland, France,
Germany, Italy, The Netherlands, Norway, Portugal, Spain, Sweden, and the
United Kingdom. KnowledgeWare also established KnowledgeWare Worldwide, Inc. to
manage its international operations. KnowledgeWare Worldwide is headquartered
in Paris, France. To expand its services in Europe, KnowledgeWare also acquired
Image Multi-Medias ("IMM"), a Paris-based client/server training and consulting
service. KnowledgeWare also acquired Ernst & Young's CASE Technology Pty Ltd.
based in Sydney, Australia, and assumed direct responsibility for sales,
marketing, and support of KnowledgeWare's products in Australia and New Zealand
as well as other areas in the Asia Pacific region.
 
  In August 1989, IBM became a significant shareholder in KnowledgeWare
(currently 7.5%). KnowledgeWare has subsequently entered into business
agreements with IBM which include: joint development agreements funded by IBM;
marketing agreements which compensated IBM for marketing activities related to
KnowledgeWare's products; a U.S. Enterprise License that provides IBM the right
to produce an unlimited quantity of certain Company products for IBM's internal
use; a reseller agreement which allows IBM to resell certain of KnowledgeWare's
products and the Loan Agreement with IBM Credit
 
                                       70
<PAGE>
 
which provides a $25,000,000 line of credit to KnowledgeWare. Effective August
31, 1994, KnowledgeWare reached an agreement with Sterling whereby IBM Credit
assigned the loan to Sterling.
 
  KnowledgeWare was incorporated in Michigan in 1979 as Database Design, Inc.
and the name was changed in 1985 to "KnowledgeWare, Inc." KnowledgeWare merged
with Atlanta-based Tarkenton Software, Inc. in 1986 and reincorporated in
Georgia in 1988.
 
PRODUCTS
 
  Since KnowledgeWare introduced its first products in 1985, KnowledgeWare has
strived to evolve its product and service portfolio to keep pace with emerging
computing technologies and customer demand to apply those technologies in their
companies. In many organizations, computing environments are rapidly migrating
from mainframe-oriented, terminal-based computing to client/server
microprocessor-based, network-oriented environments. As a result, KnowledgeWare
has expanded its product and service portfolio to support application
development for cooperative processing in open, heterogeneous client/server,
midrange, and mainframe computing environments. KnowledgeWare has expanded both
its development and deployment platforms to include Windows, OS/2 and UNIX and
has announced plans to include NT and Apple Macintosh operating systems.
 
  The Application Development Workbench is a comprehensive environment of
integrated, graphical tools that capture and analyze enterprise models,
business requirements and applications designs; and generates application
source code for multiple computing environments from the same business models
and requirements. The ADW toolset assists users in all phases of application
development: planning, analysis, prototyping, design, code generation, system
documentation, and maintenance. All information collected during the
application development life cycle is stored in a central encyclopedia--the
point of integration for all ADW products.
 
  Specific Application Development Workbench components are the ADW/Planning,
Analysis, RAD, Design, Documentation, and Construction Workstations.
ADW/Construction Workstations include ADW/Construction Workstation--GUI that
generates client/server applications with graphical user interfaces running
under Windows or Presentation Manager; ADW/Construction Workstation--400;
ADW/Construction Workstation--MVS; and ADW/Construction Workstation--Ada for
generating Ada/Motif applications for various UNIX environments.
 
  During fiscal year 1994, KnowledgeWare signed a relicensing agreement with
Rottger & Osterberg Software--Technik GmbH ("R&O") to distribute the ROCHADE
client/server information repository. ROCHADE is an open, portable
client/server repository which can expand the reuse and sharing of models,
objects and other information across an entire enterprise.
 
  ObjectView provides a set of language and database transaction features for
rapid, visual development of client/server applications. Currently based on
Windows, ObjectView was designed to develop applications that can
simultaneously access multiple databases for sophisticated transaction
processing. The product enables rapid development of applications that provide
point-and-click access to multiple databases with superior transaction
processing rates, SQL throughput rates, and scalability.
 
  During fiscal 1994, KnowledgeWare released ObjectView 3.0 and ObjectView
Enterprise, new releases which provide workgroup support for teams of
developers working concurrently on large-scale projects through an open object
repository. ObjectView Enterprise boosts developer productivity by facilitating
the reuse of application objects and logic. KnowledgeWare also released
ObjectView Desktop, a visual development tool scaled for desktop developers who
want comprehensive yet affordable visual development environments.
 
  Flashpoint is a Windows-based tool for creating graphical user interfaces for
legacy applications as well as integrating data from a variety of applications
at the desktop. With Flashpoint, developers can integrate
 
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applications from host, LAN and workstations into a single, user-oriented
desktop, while shifting some of the processing workload to the desktop from the
host. KnowledgeWare originally acquired Flashpoint as part of its acquisition
of Viewpoint Systems, Inc. in 1992.
 
  The Legacy Workbench is a comprehensive set of tools that accelerate the
maintenance, restructuring, documentation and migration of existing mainframe-
based systems. This cooperative processing product running under OS/2 and MVS
is comprised of four components: (1) Application Assessment; (2) Program
Documentation; (3) Program Restructuring; and (4) Graphical Maintenance.
 
  The Application Assessment, Program Documentation and Program Restructuring
components are based on products originally acquired from Language Technology,
Inc. in 1991. These products, which were known as Inspector, Pinpoint, and
Recoder, have been significantly enhanced with the addition of new OS/2
graphical-user interfaces to interact with these mainframe resident tools.
 
  The OS/2-based Graphical Maintenance Facility introduced in November 1993
accelerates source code maintenance with synchronized, graphical views of a
program's (1) high-level structure charts; (2) detailed flow charts of the
execution sequences; and (3) actual source code. The three synchronized views
allow developers to understand the architecture of a program. The views are
dynamically linked so that changes made in one view are automatically reflected
in the other views.
 
  NorthStar has been licensed by KnowledgeWare from Integrated Microcomputer
Systems, Inc. for sale with the Legacy Workbench. NorthStar is a Windows-based
automated reverse engineering tool for design recovery and managed migration of
legacy systems to new technologies such as client/server environments.
 
  During fiscal year 1994, KnowledgeWare introduced MAXIM, a Windows-based
business process reengineering product that graphically depicts and aids in the
analysis of an enterprise's business process and organizational structures.
KnowledgeWare also acquired ClearAccess and ClearManager in fiscal 1994.
ClearAccess is a graphical ad hoc query interface for automated data access and
transparent integration to other applications such as spreadsheets and word
processors and also includes a graphical report writer and a personal data
warehouse for downloading data and charting query results. ClearManager
includes five modules for administrating queries from multiple end users and
controlling and supporting enterprise-wide data access activities.
 
ACQUISITIONS
 
  In fiscal 1994, KnowledgeWare acquired its Australia distributor, the assets
of IFM Systemer A/S and the assets of ClearAccess Corporation. The purchase
price of the Australia distributor was approximately $1,600,000 plus 4% of
product sales, as defined, through November 9, 1996. Of the purchase price,
$800,000 was paid in January 1994, $800,000 is currently due and payable, and
the 4% payment is made quarterly. Approximately $2,085,000 has been allocated
to goodwill and will be amortized over 12 years using the straight line method.
The acquisition of IFM Systemer A/S, a Denmark based consulting company
specializing in AS/400 applications, was at a purchase price of approximately
$420,000, all paid in April 1994. Approximately $103,000 has been allocated to
goodwill and will be amortized over 10 years using the straight line method.
KnowledgeWare issued 205,906 shares of its common stock in consideration for
the intellectual property and certain other assets of ClearAccess Corporation.
Approximately $2,200,000 has been recorded as capitalized software related to
the ClearAccess and ClearManager products and will be amortized over five
years. On September 9, 1994, the Ecta Suit was filed alleging certain
securities law violations and breach of contract in connection with this
acquisition. See "Summary--Recent Developments" and "--Legal Proceedings"
below.
 
SALES AND MARKETING
 
  KnowledgeWare markets its products to a wide range of developers and users
within financial, governmental, telecommunications, manufacturing, utility and
other organizations worldwide.
 
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  KnowledgeWare markets its products in the United States through its direct
sales force as well as indirectly through value-added resellers such as system
integrators and telesales representatives. As of June 30, 1994, KnowledgeWare
employed 139 sales and sales support representatives in its domestic sales
force. KnowledgeWare licenses and supports its products from its headquarters
in Atlanta and from field offices in 20 cities in the United States. A
Client/Server Alliance Program, or "CAP," supports a group of systems
integrators and consulting companies that develop client/server solutions for
customers. The sales and marketing practices and policies of KnowledgeWare are
established to enable KnowledgeWare to compete effectively in an industry
characterized by intense price competition. KnowledgeWare uses payment terms in
excess of 30 days and price discounting on certain sales as an inducement to
customers to initiate, increase or accelerate sales. However, KnowledgeWare has
experienced difficulty in implementing an indirect sales strategy through third
party resellers for client/server products as a result of its inability to
successfully negotiate arrangements with creditworthy resellers and to collect
for products delivered on credit to other resellers creating uncertainty about
KnowledgeWare's ability independently to market products through third party
resellers. KnowledgeWare intends to focus future sales efforts using those
channels which have been successful: a direct sales force and value added
resellers. Other third party resellers will be directed to buy the products
from wholesalers.
 
  KnowledgeWare's largest end-user customer, IBM, accounted for approximately
1%, 8% and 14% of KnowledgeWare's software product license revenues in fiscal
years 1994, 1993 and 1992, respectively. KnowledgeWare signed a marketing
agreement with IBM in August 1989, as amended in April 1991, under which IBM
has the non-exclusive right in the United States, Puerto Rico and Canada to
market certain KnowledgeWare products. In June 1992 KnowledgeWare entered into
a U.S. Enterprise License Agreement with IBM which provides IBM with the right
to produce an unlimited quantity of certain KnowledgeWare products for IBM's
internal use for a fee of $12,000,000. Although no assurances exist, future
product offerings of KnowledgeWare may be added to the Enterprise License at a
mutually negotiated fee between IBM and KnowledgeWare (Flashpoint was added
during fiscal 1993 for a fee of $1,000,000). In September 1993, KnowledgeWare
signed a reseller agreement with IBM which allows IBM to resell certain of
KnowledgeWare's products. IBM purchased $1,000,000 of product under this
agreement in fiscal 1994. The Enterprise License also included purchase
commitments for maintenance of all Company products licensed by IBM. The
Company recognized $3,582,000 and $2,500,000 of revenue under the maintenance
agreement in fiscal years 1994 and 1993, respectively. In March 1994,
KnowledgeWare entered into a letter of intent with IBM and Ernst & Young to
allow the transfer of distribution rights in Japan to IBM.
 
  KnowledgeWare has historically marketed its products internationally through
various member firms of Ernst & Young International pursuant to individual,
territory specific, distribution agreements. To assume direct responsibility of
sales, marketing and support of its products in Europe and Australia,
KnowledgeWare acquired Ernst & Young's CASE distributor business in most of the
European countries and in Australia. KnowledgeWare has also assumed direct
responsibility in Canada, New Zealand, Hong Kong and other European countries
upon expiration of distribution contracts. In the remaining territories
throughout the world the distributor bears the costs of marketing and
supporting the products in its territory. International distributors accounted
for approximately 4%, 13% and 25% of KnowledgeWare's revenues for fiscal years
1994, 1993 and 1992, respectively. The lower percentage in 1994 and 1993
results from the switch to direct sales in most of Europe and Australia.
 
  In accordance with industry practice, KnowledgeWare's personal computer
software products are licensed under a "shrink wrap" license agreement
domestically (signed licenses are obtained outside the United States and in
certain instances domestically). A "shrink wrap" license is contained in the
product package and the end-user indicates acceptance of the terms of the
license by breaking the diskette seal. KnowledgeWare's mainframe-based products
are licensed under site-specific license agreements on a non-exclusive basis.
 
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SEASONALITY AND BACKLOG
 
  KnowledgeWare's quarterly results are subject to fluctuations resulting from
a variety of factors, including the effects of domestic and international
economic conditions, budgetary considerations of
customers, KnowledgeWare's sales compensation plan, the timing and costs of
product upgrades, new product introductions and promotions and recognition of
fees in connection with license, development and similar agreements.
KnowledgeWare typically realizes a larger percentage of its software product
license revenues in the second and fourth quarters of each fiscal year, with
generally lower product license revenues in the first quarter of each fiscal
year. This cyclicality results in part from budgetary spending patterns of
KnowledgeWare's customer base and KnowledgeWare's sales commission plan, which
compensates sales personnel for achieving or exceeding annual quotas,
respectively. Additionally, a major portion of each quarter's product license
revenues is typically realized in the last month of the quarter. Delays in
closing product licensing transactions at or near the end of quarter may cause
quarterly revenues and net income to fall significantly below anticipated
levels. As a result of the factors discussed above, KnowledgeWare's operating
results for any one quarter are not necessarily indicative of results for any
future period.
 
  KnowledgeWare has experienced a backlog of customer orders at the end of
certain prior periods. At June 30, 1994, KnowledgeWare had unfilled, generally
non-cancellable customer orders for software product licenses and consulting
and education services approximating $13,000,000, all of which is anticipated
to be recognized in fiscal 1995. This compares to approximately $14,000,000 of
unfilled customer orders for products and services at June 30, 1993.
 
CUSTOMER SUPPORT SERVICES
 
  KnowledgeWare offers a variety of support services for its products,
including consulting, training and maintenance. Product maintenance is offered
for each of KnowledgeWare's products and entitles the customer to telephone
support and product release enhancements of certain purchased products.
KnowledgeWare's personal computer software products are covered by a 90-day
limited warranty. KnowledgeWare provides maintenance and support of its
personal computer software products beyond this initial 90-day period for an
annual fee, payable in advance. KnowledgeWare's mainframe-based products are
covered by a one-year limited warranty. KnowledgeWare provides further
maintenance and support for mainframe-based products for an annual fee, payable
in advance. In fiscal 1994 a substantial portion of KnowledgeWare's end-user
customers purchased maintenance support. Revenues from sales of maintenance
support, referred to in KnowledgeWare's financial statements as "service
agreement revenues," are recognized ratably over the term of the agreements.
 
  Consulting services and training programs are available to customers at
published prices. Revenues from such services are recognized as the services
are rendered. Consulting and education revenues increased 100%, from $5,926,000
in fiscal 1992 to $11,861,000 in fiscal 1993, and 65% to $19,550,000 in fiscal
1994.
 
RESEARCH AND DEVELOPMENT
 
  KnowledgeWare's research and development organization designs, develops,
tests, debugs, enhances and sustains KnowledgeWare's software products.
KnowledgeWare's research and development facilities are located in Atlanta,
Georgia; and Redwood City, California.
 
  During fiscal years 1994, 1993 and 1992 KnowledgeWare incurred $24,196,000,
$28,867,000 and $23,672,000 of research and development expenses, respectively;
after capitalization of $7,480,000, $5,161,000 and $4,400,000, respectively, in
accordance with Statement of Financial Accounting Standards No. 86.
KnowledgeWare also paid $3,248,000 and $11,682,000 in fiscal years 1994 and
1992, respectively, for the acquisition of certain products and technologies.
KnowledgeWare anticipates that it will continue to commit substantial resources
to research and development in the future.
 
 
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  KnowledgeWare's future financial performance will depend in part on the
successful development and introduction of new products and enhancements to
existing products, and customer acceptance of these products. Many software
companies have experienced delays in completing the development of new products
and there can be no assurance that KnowledgeWare will not encounter
difficulties that could delay or prevent the successful introduction and
marketing of new and enhanced versions of its products.
 
COMPETITION
 
  KnowledgeWare's business is intensely competitive. The applications
development solutions market is characterized by rapid change and frequent
introduction of new products. KnowledgeWare's principal existing competitors in
the mainframe market are Arthur Andersen Consulting, Bachman Information
Systems, Intersolv, and Texas Instruments, Incorporated. KnowledgeWare's direct
competitors in the client/server market are Powersoft, Gupta and Easel.
Indirect competitors include RDBMS vendors such as Sybase and Oracle who also
sell application development tools, other CASE vendors such as Intersolv and
Bachman Information Systems, and PC vendors with end-user oriented application
development tools such as Microsoft and Borland International. Other companies
may become competitors in the future. In addition to owning approximately 7.5%
of KnowledgeWare, IBM has invested in a number of other software companies
including companies that compete with KnowledgeWare. A number of
KnowledgeWare's existing and potential competitors have greater financial,
marketing and technological resources than KnowledgeWare.
 
  KnowledgeWare believes the principal factors affecting competition in the
applications development solutions market are product performance, product
functionality, ease of use, price and quality of customer support and training
services. KnowledgeWare believes that it competes effectively with respect to
these factors. KnowledgeWare also believes that its ability to compete
effectively over the long term in the application development solutions market
depends in part on the successful development and introduction of new products;
the strategic acquisition and introduction of new products; enhancements to
existing versions of KnowledgeWare's products; and customer acceptance of such
product offerings.
 
PRODUCT PROTECTION
 
  KnowledgeWare relies on a combination of trade secret, copyright and
trademark laws, license and non-disclosure agreements and technical measures to
protect its rights in its software products and proprietary technology.
Substantially all of KnowledgeWare's employees have signed non-disclosure
agreements obligating them to maintain the confidentiality of KnowledgeWare's
proprietary information. KnowledgeWare's license agreements with end-users
generally limit the use of KnowledgeWare's products to the customer's internal
use. They further provide for the non-disclosure of confidential information.
This protection may not always prevent unauthorized parties from obtaining and
using such information.
 
EMPLOYEES
 
  As of June 30, 1994, KnowledgeWare employed 949 persons on a full time basis,
including 178 in research and development, 247 in sales and marketing, 218 in
international operations, 204 in service and support and 102 in general and
administrative functions. In July 1994, as part of a restructuring to reduce
operating expenses, KnowledgeWare eliminated 243 positions, reducing the number
of employees in each area to 123, 171, 159, 173 and 80, respectively.
KnowledgeWare's employees are not represented by a union, and KnowledgeWare
considers its relationship with its employees to be good.
 
PROPERTIES
 
  KnowledgeWare's headquarters is located in a 117,615 square foot leased
office in Atlanta, Georgia. The lease expires in December 1997 and includes two
three year renewal options. KnowledgeWare also leases nine traditional space
offices and twelve executive suites sales offices in the United States totaling
 
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approximately 370,748 square feet. KnowledgeWare has a total of 22
international sales offices located in Australia, Austria, Belgium, France,
Germany, Hong Kong, Italy, The Netherlands, Portugal, Sweden, Denmark, Norway,
Finland, Spain, Switzerland and the United Kingdom.
 
LEGAL PROCEEDINGS
 
  On December 18, 1991, the 1991 Class Action complaint was filed in the United
States District Court for the Northern District of Georgia, Atlanta Division
which consolidated and amended several class action lawsuits previously filed
against KnowledgeWare in October 1991. The 1991 Class Action was a class action
lawsuit alleging violations of Sections 20 and 10(b) of the Exchange Act and
Rule 10b-5 under the Exchange Act. In summary, the complaint alleged
KnowledgeWare misrepresented or failed to disclose material facts which would
have a material adverse impact on KnowledgeWare or approved such
misrepresentations and omissions. The complaint sought compensatory damages and
reimbursements for the plaintiffs' fees and expenses. On January 26, 1994,
KnowledgeWare entered into and the District Court preliminarily approved the
Settlement Agreement. By entering into the settlement, KnowledgeWare did not
admit the allegations in the suit and, to the contrary, denied any wrongdoing.
The Settlement Agreement, which received final court approval in April 1994,
required a cash payment of $1,750,000, all of which was paid by KnowledgeWare's
insurance carrier, and the issuance by KnowledgeWare of the Warrants, which
allow the holders to acquire an aggregate of 500,000 shares of KnowledgeWare's
Common Stock at a price of $17.50 per share. The Warrants are exercisable for a
period of three years from June 9, 1994 (the date of issuance). On August 30,
1994, the plaintiffs in the 1991 Class Action filed the Motion. In the Motion,
the plaintiffs allege that the proposed business combination between
KnowledgeWare and Sterling and the announcement by KnowledgeWare that it
modified its accounting policy for revenue recognition and restated financial
results for the first three quarters of fiscal year 1994 resulted in a
substantially reduced value of the Warrants available to the plaintiffs under
the Settlement Agreement. Accordingly, the plaintiffs moved the District Court
for a decree of specific performance of the terms of the Settlement Agreement
entailing the delivery of new warrants of equivalent value to the original
value of the Warrants, and for a preliminary injunction of the consummation of
any business combination between KnowledgeWare and Sterling, pending compliance
by KnowledgeWare with the terms of the Settlement Agreement. Alternatively, the
plaintiffs moved for a declaration that the Warrant Agreement set forth in the
Settlement Agreement was the product of fraud and for an award to the
plaintiffs of the appropriate measure of damages.
 
  On August 30 and 31, 1994, and September 12, 22 and 23, 1994, the 1994 Class
Action Suits were filed against KnowledgeWare in the United States District
Court for the Northern District of Georgia, Atlanta Division. Each of the 1994
Class Action Suits is purportedly a class action lawsuit variously alleging
violations of Sections 20 and 10(b) of the Exchange Act, and Rule 10b-5 under
the Exchange Act. The alleged factual basis underlying the 1994 Class Action
Suits and the relief sought therein is the plaintiffs' allegations that
KnowledgeWare and the individual defendants actively misrepresented or failed
to disclose the actual financial condition of KnowledgeWare throughout fiscal
year 1994 and that the value of KnowledgeWare's common stock was artificially
inflated as a result of such misrepresentations or failures to disclose. Each
of the 1994 Class Action Suits seeks compensatory damages and reimbursement for
the plaintiffs' fees and expenses.
 
  On September 9, 1994, the Ecta Suit was filed against KnowledgeWare in the
Southern District of Iowa, Central Division. The Ecta Suit is a lawsuit
alleging violations of Section 10(b) of the Exchange Act, Rule 10b-5 under the
Exchange Act, Section 12(2) of the Securities Act, violation of the Iowa Blue
Sky Laws (Iowa Stat. Ann. (S)502.502), fraud and breach of contract. The
alleged factual basis underlying the Ecta Suit arises in connection with the
purchase by KnowledgeWare of substantially all of the assets of ClearAccess
Corporation (now known as Ecta Corporation) and Fairfield Software, Inc. (now
known as Fairfield Development, Inc.) pursuant to the Acquisition Agreement.
The plaintiffs allege that KnowledgeWare and the individual defendants
misrepresented or failed to disclose the actual financial condition of
KnowledgeWare, that the value of KnowledgeWare's common stock was artificially
inflated as a result of such misrepresentations or failures to disclose and
that KnowledgeWare has breached certain warranties, representations and
covenants made in the Acquisition Agreement. The Ecta Suit seeks compensatory
 
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damages, rescission of the Acquisition Agreement and/or the sale of
KnowledgeWare's securities issued pursuant thereto, punitive damages,
prejudgment interest, and reimbursement of attorneys' fees and costs.
 
  KnowledgeWare has received informal requests for information from the Staff
of the Commission as to which persons and entities had knowledge of the
negotiations between KnowledgeWare and Sterling prior to the public
announcement of the Initial Merger Agreement on August 1, 1994, and as to the
circumstances with respect to KnowledgeWare's restatement of financial results
for the first three quarters of fiscal 1994.
 
                 DESCRIPTION OF STERLING SOFTWARE CAPITAL STOCK
 
  Sterling's authorized capital stock consists of 50,000,000 shares of Sterling
Common Stock, par value $0.10 per share, and 10,000,000 shares of Preferred
Stock, par value $0.10 per share ("Preferred Stock"). The only Preferred Stock
currently outstanding is the 200,000 shares of the Series B Preferred Stock
(the "Series B Preferred Stock"). No class of Sterling's capital stock carries
preemptive rights. The First National Bank of Boston, NA is the transfer agent,
registrar and dividend disbursing agent for the Sterling Common Stock.
 
DESCRIPTION OF STERLING SOFTWARE COMMON STOCK
 
  As of June 30, 1994, Sterling had 20,275,521 shares of Sterling Common Stock
outstanding. At such date there were also outstanding (i) options to acquire
6,521,908 shares of Common Stock, (ii) warrants to acquire 230,017 shares of
Common Stock and (iii) 5% Debentures convertible into 4,056,437 shares of
Sterling Common Stock.
 
  Holders of Sterling Common Stock are entitled to one vote per share on all
matters submitted to a vote of stockholders. Shares of Sterling Common Stock do
not have cumulative voting rights, which means that the holders of a majority
of the shares of Sterling Common Stock and Series B Preferred Stock voting for
the election of the Board of Directors can elect all members of the Board of
Directors. Holders of record of the Sterling Common Stock are entitled to
receive dividends, when and if declared by the Board of Directors, out of funds
legally available therefor. The terms of the Series B Preferred Stock prohibit
the payment of dividends on the Sterling Common Stock whenever dividends on the
Series B Preferred Stock are in arrears. Upon any liquidation, dissolution or
winding up of Sterling, holders of Sterling Common Stock are entitled to
receive pro rata all of the assets of Sterling available for distribution to
stockholders, subject to any prior rights of holders of any outstanding Series
B Preferred Stock.
 
DESCRIPTION OF STERLING SOFTWARE PREFERRED STOCK
 
  General. Sterling's Board of Directors is authorized to issue Preferred Stock
in one or more series and to fix the voting rights, liquidation preferences,
dividend rights, conversion rights, redemption rights and terms, including
sinking fund provisions, and certain other rights and preferences, of the
Preferred Stock.
 
  It is not possible to state the actual effects of the issuance of Preferred
Stock upon the rights of holders of Sterling's Common Stock until the Board of
Directors determines the specific rights of the holders of a series of
Preferred Stock. However, such effects might include, among other things,
restricting dividends on the Sterling Common Stock, diluting the voting power
of the Sterling Common Stock, impairing the liquidation rights of the Sterling
Common Stock and delaying or preventing a change in control of Sterling without
further action by the stockholders.
 
  Series B Preferred Stock. The only shares of Preferred Stock currently
outstanding are the 200,000 shares of Series B Preferred Stock controlled by
the Chairman, the Vice Chairman and a director of Sterling.
 
  The holders of Series B Preferred Stock are entitled to receive, when and as
declared by the Board of Directors, out of funds legally available for such
purposes, cumulative dividends at the annual rate of approximately $0.98 per
share, payable quarterly. Until all accrued dividends on the Series B Preferred
Stock have been paid in full, certain limitations apply to Sterling's
acquisition of, or distributions with respect to, stock ranking junior to or on
a parity with the Series B Preferred Stock. Sterling is current in its payment
of dividends on the Series B Preferred Stock.
 
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<PAGE>
 
  Except as set forth below or required by law, the holders of Series B
Preferred Stock vote together with the holders of shares of Sterling Common
Stock as a single class on all matters on which stockholders are entitled to
vote, with each holder of Series B Preferred Stock entitled to one vote for
each share held of record.
 
  The affirmative vote of the holders of at least 66 2/3% of the outstanding
shares of the Series B Preferred Stock, voting separately as a class, is
necessary (i) to authorize the issuance of securities of any class of capital
stock ranking prior to the Series B Preferred Stock as to dividends or upon
liquidation, dissolution or winding up of Sterling or (ii) to amend Sterling's
Certificate of Incorporation in any manner that would materially alter the
relative rights and preferences of the Series B Preferred Stock. The
affirmative vote of the holders of at least 51% of the outstanding shares of
Series B Preferred Stock, voting separately as a class, is required to create a
class of Preferred Stock ranking on a parity with the Series B Preferred Stock
as to dividends and upon liquidation, dissolution or winding up of Sterling.
 
  In the event Sterling proposes to effect certain transactions, including the
sale or conveyance of all or substantially all of the assets of Sterling or any
of its subsidiaries, any consolidation or merger involving Sterling or any of
its subsidiaries, any reclassification, any dissolution, liquidation or winding
up of Sterling or any other reorganization that requires the consent of
stockholders, the holders of Series B Preferred Stock are entitled to vote
together with the holders of the Sterling Common Stock as a single class and
each holder of the Series B Preferred Stock is entitled to ten votes for each
share of Series B Preferred Stock held of record, unless the proposed
transaction is unanimously approved by all of the members of the Board of
Directors of Sterling who are not beneficial owners of Series B Preferred
Stock, in which case the holders of Series B Preferred Stock are entitled to
one vote for each share of Series B Preferred Stock held of record.
 
                        COMPARISON OF STOCKHOLDER RIGHTS
 
  Sterling is incorporated under the laws of the State of Delaware and,
accordingly, the rights of stockholders of Sterling are governed by the DGCL.
KnowledgeWare is incorporated under the laws of the State of Georgia and,
accordingly, the rights of stockholders of KnowledgeWare are governed by the
GBCC. The rights of the stockholders of Sterling and KnowledgeWare also are
governed by their respective Certificate or Articles of Incorporation and
Bylaws. Upon consummation of the Merger, KnowledgeWare stockholders will become
Sterling stockholders and, as such, their rights will be governed by the DGCL,
Sterling's Certificate of Incorporation, as amended (the "Sterling Certificate
of Incorporation"), and Sterling's Restated Bylaws (the "Sterling Bylaws").
Although it is not practical to compare all the differences between the DGCL
and the GBCC, KnowledgeWare's Restated Articles of Incorporation, as amended
(the "KnowledgeWare Articles of Incorporation") and Bylaws (the "KnowledgeWare
Bylaws"), and the Sterling Certificate of Incorporation and Bylaws, the
following is a summary of certain material differences which may affect the
rights of KnowledgeWare stockholders. This summary is qualified in its entirety
by reference to the full text of such documents, the DGCL and the GBCC. For
information as to how such documents may be obtained, see "Available
Information."
 
AMENDMENT OF CHARTER AND BYLAWS
 
  Sterling. Section 242 of the DGCL provides that stockholders may amend their
corporation's certificate of incorporation if a majority of the outstanding
stock entitled to vote thereon, and a majority of the outstanding stock of each
class entitled to vote thereon as a class, has been voted in favor of the
amendment. The DGCL also provides that after a corporation has received any
payment for its stock, the power to adopt, amend or repeal bylaws resides with
the stockholders entitled to vote. A corporation may, however, grant to its
board of directors in its certificate of incorporation concurrent power to
adopt, amend or repeal bylaws.
 
  The Sterling Certificate of Incorporation requires the affirmative vote of at
least 75% of the shares entitled to vote for election of directors to amend,
repeal or adopt any provision inconsistent with the
 
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provisions of the Sterling Certificate of Incorporation relating to the
election, number, classification or filling of vacancies of the Board of
Directors.
 
  KnowledgeWare. KnowledgeWare's stockholders may adopt, amend and repeal the
KnowledgeWare Articles of Incorporation and Bylaws by a majority vote of the
shares outstanding. However, the KnowledgeWare Articles of Incorporation
require the affirmative vote of at least 80% of the shares entitled to vote for
election of directors to amend, repeal or adopt any provision inconsistent with
the provisions of the KnowledgeWare Articles of Incorporation relating to the
election, number, classification or filling of vacancies of the board of
directors. KnowledgeWare's Board of Directors also may adopt, amend and repeal
the Bylaws, unless the stockholders prescribe that any Bylaw or Bylaws adopted
by them may not be amended or repealed by the Board of Directors. However, (i)
the Fair Price Provisions (defined below) and the Corporate Takeover Provisions
(defined below) contained in KnowledgeWare's Bylaws may only be repealed by the
affirmative vote of at least two-thirds of the continuing directors and the
holders of a majority of the shares entitled to vote, other than shares
beneficially owned by any interested stockholder and (ii) the Supplemental
Voting Provision (defined below) may only be repealed by the affirmative vote
of the holders of two-thirds of the shares entitled to vote at a duly held
stockholders meeting.
 
REMOVAL OF DIRECTORS
 
  Sterling. The DGCL permits any director or the entire board of directors to
be removed, with or without cause, by the vote of the holders of a majority of
the shares entitled to vote. Directors of a corporation with a classified board
of directors, however, can be removed only for cause unless the certificate of
incorporation otherwise provides. The Sterling Certificate of Incorporation and
the Sterling Bylaws provide that any director may be removed either for or
without cause by an affirmative vote of a majority of the shares entitled to
vote for such director. Vacancies in the Board and any newly created
directorships resulting from any increase in the authorized number of directors
may be filled by the vote of a majority of the directors then in office, though
less than a quorum. Amendment of specific provisions of the Sterling
Certificate of Incorporation relating to election of the Board of Directors
requires an affirmative vote of at least 75% of the shares entitled to vote
generally in the election of directors.
 
  KnowledgeWare. Under KnowledgeWare's Articles of Incorporation and Bylaws,
any director may be removed from office only for cause by the affirmative vote
of the holders of a majority of the shares then outstanding and entitled to
vote at an election of directors. A removed director's successor may be elected
within 60 days after a director has been removed, by the holders of a majority
of the shares then outstanding and entitled to vote at an election of
directors. If a removed director's successor is not elected within such 60 day
period by the stockholders, the remaining directors may, by majority vote, fill
the vacancy. Any vacancies in the KnowledgeWare Board of Directors resulting
from any reason other than the removal of a director, shall be filled by a
majority vote of the remaining directors.
 
CHANGES OF CONTROL
 
  Sterling. Section 203 of the DGCL ("Section 203") prohibits a "business
combination" (defined broadly to include mergers, sales and leases of assets,
issuances of securities, and similar transactions having an aggregate value in
excess of 10% of the consolidated assets of the corporation) between a Delaware
corporation and an "interested stockholder" (defined generally as a beneficial
owner of 15% or more of the corporation's voting stock and such person's
affiliates and associates) within three years after the person or entity
becomes an interested stockholder, unless (i) prior to the person or entity
becoming an interested stockholder, the business combination or the transaction
pursuant to which such person or entity became an interested stockholder shall
have been approved by the corporation's Board of Directors, (ii) upon
consummation of the transaction in which such person became an interested
stockholder, such interested stockholder holds at least 85% of such
corporation's voting stock (excluding shares held by persons who are both
officers and directors and shares held by certain employee benefit plans), or
(iii) the business combination
 
                                       79
<PAGE>
 
is approved by the corporation's Board of Directors and by the holders of at
least 66 2/3% of the outstanding voting stock of the corporation, excluding
shares owned by such interested stockholder.
 
  Section 203 applies automatically to Delaware corporations, except those
corporations with less than 2000 stockholders of record and without voting
stock listed on a national securities exchange or listed for quotation with a
registered national securities association. In addition, a Delaware
corporation, by action of its stockholders, may adopt an amendment to its
certificate of incorporation or bylaws expressly electing not to be governed by
Section 203, provided that such amendment is approved by the affirmative vote
of the holders of a majority of the shares of stock entitled to vote. However,
such amendment will not be effective until 12 months after the adoption thereof
and shall not apply to any business combination between such corporation and
any person who became an interested stockholder of such corporation on or prior
to such adoption. The Sterling Certificate of Incorporation and the Sterling
Bylaws contain no provisions by which Sterling has elected not to be governed
by Section 203.
 
  In addition, the Sterling Certificate of Incorporation and Bylaws contain
provisions which may have the effect of discouraging certain transactions
involving an actual or threatened change of control of Sterling, thereby
depriving some stockholders of opportunities to sell shares of Sterling Common
Stock at higher than market prices. These provisions include the authority to
issue Preferred Stock with such rights and privileges as the Board of Directors
of Sterling may deem appropriate.
 
  The classification of Sterling's Board of Directors, pursuant to which one
class of Sterling's three classes of directors are elected each year for a
three year term, may delay the ability of dissatisfied Sterling stockholders,
or anyone who obtains a controlling interest in Sterling Common Stock, to elect
a new Board of Directors and to exercise control of Sterling.
 
  KnowledgeWare. Certain provisions of Georgia law and the KnowledgeWare
Articles of Incorporation and Bylaws also may have the effect of preventing,
discouraging or delaying a change of control of KnowledgeWare. These provisions
include the authority to issue preferred stock with such rights and privileges
as the Board of Directors may deem appropriate. Like Sterling's,
KnowledgeWare's Board of Directors is classified.
 
  In addition, the KnowledgeWare Articles of Incorporation contain a provision
that permits the Board of Directors, in evaluating a business combination or a
proposal by another person to make a business combination or tender or exchange
officer, to consider, in addition to the adequacy of the amount to be paid in
connection with such transaction, certain specified factors and any other
factors the Board of Directors deems relevant. Among the factors the Board of
Directors may consider are: the social and economic effects of the transaction
on KnowledgeWare and its subsidiaries, employees, customers and creditors, the
business and financial condition and earnings prospects of the acquiror, and
the competence, experience and integrity of the acquiror and its management.
 
  The KnowledgeWare Articles of Incorporation and Bylaws contain fair price
provisions (the "Fair Price Provisions") authorized by the GBCC and designed to
provide some protection against certain forms of two-tiered corporate
takeovers. The Fair Price Provisions impose certain requirements on certain
business combinations of KnowledgeWare with any person who is an interested
stockholder of KnowledgeWare (generally, the beneficial owner of 10% or more of
KnowledgeWare's voting shares). Under the Fair Price Provisions, business
combinations with interested stockholders must meet one of three criteria
designed to protect the minority stockholders: (i) the transaction must be
unanimously approved by the continuing directors who then constitute at least
three members of the Board of Directors (generally, directors who served prior
to the time the interested stockholder acquired 10% ownership and who are
unaffiliated with the interested stockholder); (ii) the transaction must be
recommended by two-thirds of the continuing directors and approved by a
majority of the shares held by stockholders other than the interested
stockholder who is a party to the business combination; or (iii) the terms of
the transaction must meet specified fair price
 
                                       80
<PAGE>
 
criteria and certain other tests which are intended to assure that all
stockholders receive a fair price and equivalent consideration for their shares
regardless of what point in time they sell to the acquiring party.
 
  KnowledgeWare's Bylaws require the affirmative vote of the holders of two-
thirds of the shares entitled to vote in certain situations in order to approve
certain business combinations (the "Supplemental Voting Provision"). The
Supplemental Voting Provision is designed to complement and extend the Fair
Price Provision. Although the Fair Price Provisions are designed to protect the
stockholders of KnowledgeWare against inequities of certain tactics that have
been used in hostile takeover attempts, they do not generally protect the
stockholders against other potential inequitable situations. The Supplemental
Voting Provision is designed to provide additional stockholder protection not
covered by the Fair Price Provisions and only applies to business combinations
that have not been approved by a majority of the continuing directors who then
constitute at least three members of the Board of Directors.
 
  Additionally, the KnowledgeWare Articles of Incorporation and Bylaws contain
provisions authorized by the GBCC relating to certain restrictions and
limitations on certain business combinations (the "Corporate Takeover
Provisions"). The Corporate Takeover Provisions would prevent for five years
after a stockholder becomes an interested stockholder certain business
combinations with that interested stockholder unless (i) prior to the date such
stockholder became an interested stockholder the Board of Directors approved
either the business combination or the transaction that resulted in the
stockholder becoming an interested stockholder, or (ii) in the transaction that
resulted in the stockholder becoming an interested stockholder, the interested
stockholder became the beneficial owner of at least 90% of the outstanding
voting shares of KnowledgeWare, excluding for purposes of determining the
number of shares outstanding, shares owned by KnowledgeWare's officers,
directors, affiliates, subsidiaries and certain employee stock plans; or (iii)
subsequent to becoming an interested stockholder, such stockholder acquired
additional shares resulting in the interested stockholder becoming the owner of
at least 90% of KnowledgeWare's outstanding voting shares and the business
combination was approved by a majority of the holders of KnowledgeWare's voting
shares, excluding from said vote the stock owned by the interested stockholder
or by KnowledgeWare's officers, directors, affiliates, subsidiaries and certain
employee stock plans.
 
  KnowledgeWare's Fair Price Provisions, Supplemental Voting Provision and
Corporate Takeover Provisions do not apply to the Merger because
KnowledgeWare's Board of Directors, including its continuing directors, has
approved the Merger.
 
DIVIDENDS
 
  Sterling. Under Delaware law, unless otherwise restricted by a corporation's
certificate of incorporation, dividends may be paid (i) out of the
corporation's surplus (the excess of total assets over the sum of the
corporation's total liabilities plus its capital), or (ii) if there is no such
surplus, out of the corporation's net profits for the fiscal year in which the
dividend is declared and/or the preceding fiscal year (provided, however, that
the amount of capital of the corporation is not less than the aggregate amount
of capital represented by the issued and outstanding stock of all classes
having preference upon the distribution of assets).
 
  KnowledgeWare. A Georgia corporation, unless otherwise restricted by its
articles of incorporation, may make distributions to its stockholders unless
after giving effect to such distributions (i) the corporation would not be able
to pay its debts as they become due in the usual course of business, or (ii)
the corporation's total assets would be less than the sum of its total
liabilities plus (unless the articles of incorporation permit otherwise) the
amount that would be needed, if the corporation were to be dissolved at the
time of the distribution, to satisfy the preferential rights upon dissolution
of stockholders whose preferential rights are superior to those receiving the
distribution. Such distributions are not otherwise restricted under the
KnowledgeWare Articles of Incorporation or Bylaws.
 
 
                                       81
<PAGE>
 
INDEMNIFICATION OF DIRECTORS AND OFFICERS
 
  Sterling. Sterling's directors and officers are, in certain situations,
entitled to indemnification pursuant to the Sterling Bylaws and Delaware law.
Delaware law provides that a corporation may indemnify its officers, directors
and employees for expenses, judgments, or settlements incurred in connection
with suits and other legal proceedings. A corporation may advance expenses to
directors and officers upon receipt of an undertaking by the director or
officer to repay such amount if it is ultimately determined that he is not
entitled to indemnification. Delaware law requires the indemnified party to
have acted in good faith and in a manner that he reasonably believed to be in
or not opposed to the best interests of the corporation. Indemnification is not
permissible if the person seeking indemnification has been adjudged to be
liable to the corporation, unless the Court of Chancery determines that despite
such adjudication of liability such person is fairly and reasonably entitled to
indemnification. The Sterling Bylaws provide that Sterling will indemnify its
directors to the maximum extent permitted by Delaware law. The Sterling Bylaws
further allow Sterling, to the extent authorized by the Sterling Board of
Directors, to indemnify its officers, and any other person whom it has the
power to indemnify, against any liability, expense, or other matter whatsoever.
Under Delaware law, the right to indemnification under the Sterling Bylaws is
not exclusive of any other right which any person may have or later acquire. In
addition, Delaware law authorizes Sterling to purchase insurance for directors,
officers and employees, whether or not Sterling has the power to indemnify that
person.
 
  KnowledgeWare. KnowledgeWare's directors and officers are, in certain
situations, entitled to indemnification pursuant to the KnowledgeWare Articles
of Incorporation, Bylaws and Georgia law. KnowledgeWare must indemnify its
directors and officers (i) made a party to a proceeding because they are or
were officers or directors of the corporation against liability incurred if
such directors or officers acted in a manner they believed in good faith to be
in or not opposed to the best interests of KnowledgeWare, and (ii) against
reasonable expenses to the extent such person has been successful in the
defense of any proceeding or claim. KnowledgeWare may advance expenses to
directors and officers upon receipt of an undertaking by such directors or
officers to repay such amount if it is ultimately determined that such officers
or directors are not entitled to indemnification. Moreover, under certain
circumstances a director or officer or KnowledgeWare may apply for
indemnification for expenses to a court. The KnowledgeWare Articles of
Incorporation and Bylaws generally provide that KnowledgeWare shall indemnify
each of its directors and officers to the fullest extent permitted by Georgia
law and that the Bylaws are not the exclusive right under which directors and
officers may be entitled to indemnification. Notwithstanding the above rights
of an officer or director to indemnification, KnowledgeWare shall not indemnify
a director or officer for any liability incurred in a proceeding in which the
director or officer is adjudged liable to KnowledgeWare or is subjected to
injunctive relief in favor of KnowledgeWare: (i) for any appropriation in
violation of his duties of any business opportunity of KnowledgeWare; (ii) for
acts or omissions which involve intentional misconduct or a knowing violation
of law; (iii) for any transaction from which he received an improper personal
benefit; or (iv) certain other types of liability set forth under Georgia law.
In addition, Georgia law and KnowledgeWare's Articles of Incorporation and
Bylaws authorize KnowledgeWare to purchase insurance for directors, officers
and employees, whether or not KnowledgeWare has the power to indemnify that
person.
 
DISSENTERS' RIGHTS
 
  Sterling. Under Delaware law, any stockholder of a Delaware corporation has
the right to dissent from any merger or consolidation, except as described
below, of which the corporation is a constituent corporation. No such appraisal
rights are available for the shares of any class or series of stock of a
Delaware corporation if (i) as of the record date fixed to determine the
stockholders entitled to receive notice of and to vote at the meeting of
stockholders to act upon the agreement of merger or consolidation, such shares
were either listed on a national securities exchange or held of record by more
than 2,000 stockholders or (ii) such corporation is the surviving corporation
of the merger and the merger did not require the approval of such corporation's
stockholders, unless in either case, the holders of such stock are required by
the agreement of merger or consolidation to accept for that stock something
other than: (a) shares of stock of the corporation surviving or resulting from
the merger or consolidation; (b) shares of stock of any other corporation that,
at the effective
 
                                       82
<PAGE>
 
date of the merger, will be listed on a national securities exchange or held of
record by more than 2,000 stockholders; (c) cash in lieu of fractional shares
of a corporation described in clause (a) or (b) above; or (d) any combination
of the shares of stock and cash in lieu of fractional shares described in
clauses (a) through (c) above. Because Sterling is not a constituent
corporation of the Merger, stockholders of Sterling do not have dissenters'
rights with respect to the Merger.
 
  KnowledgeWare. Under Georgia law, a stockholder is entitled to dissent and
obtain payment of the fair value of his shares in the event of: (i)
consummation of a plan of merger to which the corporation is a party, if either
(a) stockholder approval is required and the stockholder is entitled to vote on
the merger or (b) the corporation is a subsidiary that is merged into its
parent; (ii) consummation of a plan of share exchange to which the corporation
is a party as the corporation whose shares will be acquired, if the stockholder
is entitled to vote on the plan; (iii) consummation of a sale or exchange of
all or substantially all of the property of the corporation, if stockholder
approval is required; (iv) an amendment to the articles of incorporation that
materially and adversely affects the rights of the dissenter's shares in
specified ways; or (v) any corporate action pursuant to a stockholder vote to
the extent that the articles of incorporation, bylaws, or board resolution
provide that dissenters' rights shall apply. No holder of any shares of any
class or series is entitled to dissent, however, if such shares are either
listed on a national securities exchange or held of record by more than 2,000
stockholders, unless: (i) in the case of a plan of merger or share exchange,
the holders of shares of that class or series are required to accept for their
shares anything except shares of the surviving corporation or another publicly
held company that as of the effective date of such plan of merger or share
exchange are either listed on a national securities exchange or held of record
by more than 2,000 stockholders, or cash payments in lieu of fractional shares;
or (ii) the articles of incorporation or a resolution of the board of directors
approving the transaction provide otherwise. Because the NASDAQ National Market
is defined to be a national securities exchange for the purposes of the GBCC,
and the Sterling Common Stock is traded on the NYSE, stockholders of
KnowledgeWare do not have dissenters' rights with respect to the Merger.
 
                                    EXPERTS
 
  The consolidated financial statements and financial statement schedules
appearing in Sterling's Annual Report on Form 10-K for the year ended September
30, 1993, as amended by Form 10-K/A Amendment No. 1 filed January 26, 1994,
have been audited by Ernst & Young LLP, independent auditors, as set forth in
their report thereon included therein and incorporated by reference herein,
which as to the years 1992 and 1991, are based in part on the report of Arthur
Andersen LLP, independent public accountants. Such consolidated financial
statements and schedules are incorporated herein by reference in reliance upon
such reports given upon the authority of such firms as experts in accounting
and auditing.
 
  The consolidated financial statements of KnowledgeWare, Inc. and subsidiaries
as of June 30, 1994 and 1993 and for each of the three years in the period
ending June 30, 1994 incorporated by reference in this Proxy
Statement/Prospectus have been incorporated herein on the report, which
includes an explanatory paragraph about KnowledgeWare's ability to continue as
a going concern, of Coopers & Lybrand L.L.P., independent certified public
accountants, given upon the authority of that firm as experts in accounting and
auditing.
 
                             STOCKHOLDER PROPOSALS
 
  If the Merger is not consummated, pursuant to Rule 14a-8 of the Exchange Act
and the Proxy Statement relating to KnowledgeWare's 1993 Annual Meeting of
Shareholders, KnowledgeWare stockholders must have presented appropriate
proposals for consideration at such meeting not later than June 28, 1994. Any
such required date with respect to proposals to be submitted in connection with
the 1995 Annual Meeting of Shareholders will be set forth in KnowledgeWare's
Proxy Statement for the 1994 Annual Meeting, if any such meeting is held.
 
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<PAGE>
 
                                 OTHER MATTERS
 
  As of the date of this Proxy Statement/Prospectus, the Board of Directors of
KnowledgeWare knows of no matters which will be presented for consideration at
the Special Meeting other than as described in this Proxy Statement/Prospectus.
However, if any other matter shall come before the Special Meeting or any
adjournment or postponement thereof and be voted upon, the proposed proxy will
be deemed to confer discretionary authority to the individuals named as
authorized therein to vote the shares represented by such proxy as to any such
matters.
 
                                 LEGAL MATTERS
 
  The validity of the shares of Sterling Common Stock to be issued in
connection with the Merger will be passed upon by Jackson & Walker, L.L.P.,
Dallas, Texas. Michael C. French, a partner in Jackson & Walker, is a director
of Sterling. The federal income tax consequences in connection with the Merger
will be passed upon for Sterling by Jackson & Walker and for KnowledgeWare by
Hicks, Maloof & Campbell.
 
                             YOUR VOTE IS IMPORTANT
 
  WHETHER OR NOT YOU PLAN TO ATTEND THE MEETING, PLEASE COMPLETE, DATE AND SIGN
YOUR PROXY IN ORDER TO ENSURE THAT YOUR SHARES WILL BE REPRESENTED AT THE
MEETING. THE GIVING OF SUCH PROXY DOES NOT AFFECT YOUR RIGHT TO VOTE IN PERSON
IN THE EVENT YOU ATTEND THE MEETING.
 
                             TRADEMARK INFORMATION
 
  The following product names used herein are registered or unregistered
trademarks owned by Sterling: ANSWER, ANSWER:Architect, ANSWER:Builder,
ANSWER:Journey, ANSWER:Testpro, ANSWER:Transact, ANSWER:Zim, COMMERCE:Complete,
COMMERCE:Connection, COMMERCE:Institute, COMMERCE:Marketquest,
COMMERCE:Network, COMMERCE:Resource, CONNECT:Direct, CONNECT:Mailbox,
CONNECT:Queue, GENTRAN, GENTRAN:Basic, GENTRAN:Control, GENTRAN:Dataguard,
GENTRAN:Excel, GENTRAN:Plus, GENTRAN:Realtime, GENTRAN:Server,
GENTRAN:Structure, GENTRAN:Viewpoint, SAMS:Allocate, SAMS:Compress, SAMS:Disk,
SAMS:Expert, SAMS:Save, SAMS:Vantage, SOLVE:Asset, SOLVE:Automation,
SOLVE:Change, SOLVE:Configuration, SOLVE:Monitor, SOLVE:Netmaster,
SOLVE:Problem, SOLVE:Stat, VECTOR, VECTOR:Connexion, VM:Center and VM:Manager.
 
  The following product names used herein are registered or unregistered
trademarks owned by KnowledgeWare or in which KnowledgeWare claims ownership:
KnowledgeWare, Application Development Workbench, ADW, Legacy Workbench,
Viewpoint, Flashpoint, ObjectView, ObjectView Desktop, ObjectView Enterprise,
ClearAccess, ClearManager, MAXIM, Recoder, NorthStar and Matesys.
 
                                       84
<PAGE>
 
                                                                      APPENDIX A
 
               AMENDED AND RESTATED AGREEMENT AND PLAN OF MERGER
 
  This AMENDED AND RESTATED AGREEMENT AND PLAN OF MERGER (this "Agreement"),
entered into this 31st day of August 1994, to be effective as of July 31, 1994,
among KNOWLEDGEWARE, INC., a Georgia corporation (the "Corporation"), STERLING
SOFTWARE, INC., a Delaware corporation ("Buyer"), and SSI CORPORATION, a
Georgia corporation and a wholly-owned subsidiary of Buyer ("Merger Sub").
 
                                    RECITALS
 
  A. The Boards of Directors of the Corporation and Buyer each have determined
that a business combination between Buyer and the Corporation is in the best
interests of their respective companies and stockholders, and presents an
opportunity for their respective companies to achieve long-term strategic
objectives, and accordingly have agreed to effect the merger provided for
herein upon the terms and subject to the conditions set forth herein.
 
  B. The Corporation, Buyer and Merger Sub on July 31, 1994 entered into an
Agreement and Plan of Merger (the "Original Agreement"), and now desire to
amend and restate the Original Agreement in its entirety as set forth herein.
 
  C. To induce Buyer to enter into the Original Agreement, simultaneously with
the execution and delivery of the Original Agreement, the Corporation and Buyer
entered into a Stock Option Agreement, and the Corporation and Buyer have
entered into an Amended and Restated Stock Option Agreement dated as of the
date hereof (as so amended and restated, the "Stock Option Agreement"),
pursuant to which the Corporation has granted to Buyer an option to acquire
shares of common stock of the Corporation upon the occurrence of certain events
and in accordance with certain terms and conditions set forth in the Stock
Option Agreement.
 
  D. To further induce Buyer to enter into the Original Agreement, certain
holders of common stock of the Corporation have entered into Stockholder
Agreements, dated as of July 31, 1994, and such stockholders have entered into
Amended and Restated Stockholder Agreement (as so amended and restated, the
"Stockholder Agreements"), with Buyer pursuant to which such stockholders have
agreed to vote their Shares (as hereinafter defined) in favor of the Merger (as
hereinafter defined).
 
  E. The Board of Directors of the Corporation has approved the acquisition of
shares of the Corporation pursuant to the Stock Option Agreement and the
transactions contemplated by the Stockholder Agreements in accordance with the
provisions of Sections 14-2-1111(1) and 14-2-1132(a)(1) of the Georgia Business
Corporation Code (the "GBCC").
 
  F. The Corporation, Buyer and Merger Sub desire to make certain
representations, warranties and agreements in connection with the Merger.
 
  G. The merger provided for herein may be qualified for federal income tax
purposes as a reorganization within the meaning of Section 368 of the Internal
Revenue Code of 1986, as amended (the "Code"), in Buyer's sole discretion and
if such qualification is available.
 
  NOW, THEREFORE, in consideration of the foregoing, and of the
representations, warranties, covenants and agreements contained herein, the
parties hereto hereby agree as follows:
 
 
                                      A-1
<PAGE>
 
                                   ARTICLE 1
 
1. THE MERGER.
 
  1.1. The Merger. Subject to the terms and conditions of this Agreement, at
the Effective Time (as defined in Section 1.3), Merger Sub shall be merged with
and into the Corporation in accordance with this Agreement and the separate
corporate existence of Merger Sub shall thereupon cease (the "Merger"). The
Corporation shall be the surviving corporation in the Merger (sometimes
hereinafter referred to as the "Surviving Corporation") and shall continue to
be governed by the laws of the State of Georgia, and the separate corporate
existence of the Corporation with all its rights, privileges, powers,
immunities, purposes and franchises shall continue unaffected by the Merger,
except as set forth in Articles 2 and 3. The Merger shall have the effects
specified in the GBCC.
 
  1.2. The Closing. The closing of the Merger (the "Closing") shall take place
(i) at the executive offices of Buyer, in the State of Texas, at 9:00 a.m.,
local time, on the first business day immediately following the day on which
the last to be fulfilled or waived of the conditions set forth in Article 8
shall be fulfilled or waived in accordance herewith or (ii) at such other time
and place and/or on such other date as the Corporation and Buyer may agree. The
date on which the Closing occurs is hereafter referred to as the "Closing
Date."
 
  1.3. Effective Time. If all the conditions to the Merger set forth in Article
8 shall have been fulfilled or waived in accordance herewith and this Agreement
shall not have been terminated in accordance with Article 9, the parties hereto
shall cause a Certificate of Merger meeting the requirements of Section 14-2-
1105(b) of the GBCC to be properly executed and filed in accordance with such
Section on the Closing Date. The Merger shall become effective at the time of
the filing of the Certificate of Merger in accordance with the GBCC or at such
later time which the parties hereto have theretofore agreed upon and designated
in such filing as the effective time of the Merger (the "Effective Time").
 
                                   ARTICLE 2
 
2. ARTICLES OF INCORPORATION AND BYLAWS OF THE SURVIVING CORPORATION.
 
  2.1. Articles of Incorporation. Effective at the Effective Time and subject
to the provisions of Section 7.17, the Articles of Incorporation of the
Corporation shall be the Articles of Incorporation of the Surviving
Corporation, as amended as set forth in Exhibit 2.1.
 
  2.2. Bylaws. Subject to the provisions of Section 7.17, the Bylaws of Merger
Sub in effect immediately prior to the Effective Time shall be the Bylaws of
the Surviving Corporation, until duly amended in accordance with their terms
and the GBCC.
 
                                   ARTICLE 3
 
3. DIRECTORS AND OFFICERS OF THE SURVIVING CORPORATION.
 
  3.1. Directors. The persons who are directors of Merger Sub immediately prior
to the Effective Time shall, from and after the Effective Time, be and become
directors of the Surviving Corporation until their successors have been duly
elected or appointed and qualified or until their earlier death, resignation or
removal in accordance with the Surviving Corporation's Articles of
Incorporation and Bylaws.
 
  3.2. Officers. The officers of the Corporation shall continue as officers of
the Surviving Corporation until their resignation or removal.
 
 
                                      A-2
<PAGE>
 
                                   ARTICLE 4
 
4. CONVERSION OF SHARES IN THE MERGER.
 
  4.1. Conversion of Shares. The manner of converting shares of the Corporation
and Merger Sub in the Merger shall be as follows:
 
    (i) Subject to the provisions of Section 4.4, at the Effective Time, each
  share of the Common Stock, without par value (the "Shares"), of the
  Corporation issued and outstanding immediately prior to the Effective Time
  (other than Shares owned by Buyer, Merger Sub or any other subsidiary of
  Buyer (the "Buyer Group")) shall, by virtue of the Merger and without any
  action on the part of the holder thereof, be converted into the right to
  receive .1653 share of Common Stock, par value $.10 per share (the "Buyer
  Common Stock") of Buyer (the "Exchange Ratio").
 
    (ii) As a result of the Merger and without any action on the part of the
  holder thereof, all Shares (other than Shares owned by the Buyer Group)
  shall cease to be outstanding and shall be cancelled and retired and shall
  cease to exist, and each holder of a certificate (a "Certificate")
  representing any Shares shall thereafter cease to have any rights with
  respect to such Shares, except the right to receive, without interest, the
  Buyer Common Stock and cash for fractional interests of the Buyer Common
  Stock in accordance with Section 4.1(i) upon the surrender of such
  Certificate.
 
    (iii) The warrants (the "Warrants") issued pursuant to that certain
  Warrant Agreement (the "Warrant Agreement") dated as of June 9, 1994
  between the Corporation and Trust Company Bank and outstanding at the
  Effective Time shall, by virtue of the Merger, and without any further
  action on the part of the Corporation or the holder of any Warrant, be
  assumed by Buyer. The Warrants assumed by Buyer shall be exercisable upon
  the same terms and conditions existing at the date hereof except that (a)
  the Warrants shall be exercisable for that whole number of shares of Buyer
  Common Stock (to the nearer whole share) into which the number of Shares
  subject to the Warrants immediately prior to the Effective Time would be
  converted, and (b) the exercise price per share of Buyer Common Stock shall
  be an amount equal to the "Purchase Price" (as such term is used in the
  Warrant Agreement) per Share immediately prior to the Effective Time (i.e.,
  the exercise price of $17.50 per Share as it may be adjusted pursuant to
  the terms of the Warrant Agreement) divided by the Exchange Ratio (the
  exercise price per share, as so determined, being rounded upward to the
  nearest full cent). No payment shall be made for fractional interests.
 
    (iv) Each Share issued and outstanding at the Effective Time and owned by
  any of the Buyer Group, and each Share issued and held in the Corporation's
  treasury at the Effective Time, by virtue of the Merger and without any
  action on the part of the holder thereof, shall cease to be outstanding and
  shall be cancelled and retired without payment of any consideration
  therefor and shall cease to exist.
 
    (v) At the Effective Time, each share of Common Stock, par value $.10 per
  share, of Merger Sub issued and outstanding immediately prior to the
  Effective Time as result of the Merger shall be converted and exchanged for
  one newly and validly issued, fully paid and nonassessable share of Common
  Stock of the Surviving Corporation.
 
    (vi) At the Effective Time, all options (individually, a "Corporation
  Option" or collectively, the "Corporation Options") then outstanding under
  the Corporation's Incentive Stock Option Plan of 1984, Second Incentive
  Stock Option Plan of 1984, 1988 Stock Incentive Plan, 1989 Non-Employee
  Directors Stock Option Plan, 1989 Employee Stock Purchase Plan and 1993
  Non-Employee Directors Stock Option Plan (collectively, the "Corporation
  Stock Option Plans") shall remain outstanding following the Effective Time
  and shall remain exercisable pursuant to the terms of such plans. At the
  Effective Time, such Corporation Options shall, by virtue of the Merger and
  without any further action on the part of the Corporation or the holder of
  any such Corporation Options, be assumed by Buyer in such manner that Buyer
  (a) is a corporation "assuming a stock option in a transaction to which
  Section 424(a) applied" within the meaning of Section 424 of the Code, or
  (b) to the extent that Section 424 of the Code does not apply to any such
  Corporation Option, would be such a corporation were Section 424 applicable
  to such option. Each Corporation Option assumed by Buyer shall be
  exercisable upon the
 
                                      A-3
<PAGE>
 
  same terms and conditions as under the applicable Corporation Stock Option
  Plan and the applicable option agreement issued thereunder, except that (a)
  each such Corporation Option shall be exercisable for that whole number of
  shares of Buyer Common Stock (to the nearer whole share) into which the
  number of Shares subject to such Option immediately prior to the Effective
  Time would be converted under this Section 4.1, and (b) the option exercise
  price per share of Buyer Common Stock shall be an amount equal to the
  option price per Share subject to such Corporation Option in effect prior
  to the Effective Time divided by the Exchange Ratio (the price per share,
  as so determined, being rounded upward to the nearest full cent). The
  Corporation Disclosure Letter (as hereinafter defined) sets forth, as to
  each holder of a Corporation Option, the name of such holder, the number of
  Shares subject to such Corporation Option, the Corporation Stock Option
  Plan pursuant to which such Corporation Option was issued, the vesting
  schedule and the expiration date of such Corporation Option. No payment
  shall be made for fractional interests. From and after the date of this
  Agreement, no additional options shall be granted by the Corporation or its
  subsidiaries under the Corporation Stock Option Plans or otherwise.
 
  4.2. Exchange of Certificates Representing Shares.
 
    (i) As of the Effective Time, Buyer shall make available, or shall cause
  to be made available, with an exchange agent selected by Buyer, which shall
  be Buyer's Transfer Agent or such other party reasonably satisfactory to
  the Corporation (the "Exchange Agent"), for the benefit of the holders of
  Shares, for exchange in accordance with this Article 4, certificates
  representing a sufficient number of shares of Buyer Common Stock necessary
  for the Exchange Agent to make payments pursuant to Section 4.1 hereof
  (such certificates for shares of Buyer Common Stock, together with the
  amount of any dividends or distributions with respect thereto, being
  hereinafter referred to as the "Exchange Fund") in exchange for outstanding
  Shares.
 
    (ii) Promptly after the Effective Time, Buyer shall cause the Exchange
  Agent to mail to each person who was, at the Effective Time, a holder of
  record (other than any of the Buyer Group) of a Certificate or Certificates
  (i) a letter of transmittal which shall specify that delivery shall be
  effected, and the risk of loss and title to the Certificates shall pass,
  upon (and only upon) delivery of the Certificates to the Exchange Agent,
  and which shall be in such form and have such other provisions as Buyer and
  the Exchange Agent may reasonably specify, and (ii) instructions for use in
  effecting the surrender of the Certificates in exchange for certificates
  representing Buyer Common Stock. Promptly following the surrender to the
  Exchange Agent of a Certificate for cancellation together with such letter
  of transmittal, duly executed and completed in accordance with the
  instructions thereto, the Exchange Agent shall deliver to the holder of
  such Certificate in exchange therefor a certificate representing that
  number of shares of Buyer Common Stock and unpaid dividends and
  distributions, if any, which such holder has the right to receive in
  respect of the Certificate surrendered pursuant to the provisions of this
  Article 4, after giving effect to any required tax withholdings, and the
  Certificate so surrendered shall forthwith be cancelled. No interest will
  be paid or accrued on the amount payable upon surrender of Certificates. In
  the event of a transfer of ownership of Shares which is not registered in
  the transfer records of the Corporation, a certificate representing the
  proper number of shares of Buyer Common Stock may be issued to such a
  transferee if the Certificate representing such Shares is presented to the
  Exchange Agent, accompanied by all documents required by the Exchange Agent
  to evidence and effect such transfer of Shares and to evidence that any
  applicable stock transfer taxes have been paid.
 
    (iii) Notwithstanding any other provisions of this Agreement, no
  dividends on Buyer Common Stock shall be paid with respect to any Shares or
  other securities represented by a Certificate until such Certificate is
  surrendered for exchange as provided herein. Subject to the effect of
  applicable laws, following surrender of any such Certificate, there shall
  be paid to the holder of certificates representing shares of Buyer Common
  Stock issued in exchange therefor, without interest, (i) at the time of
  such surrender, the amount of dividends or other distributions with a
  record date after the Effective Time theretofore payable with respect to
  such shares of Buyer Common Stock and not paid, less the amount of any
  withholding taxes which may be required thereon, and (ii) at the
  appropriate payment date, the
 
                                      A-4
<PAGE>
 
  amount of dividends or other distributions with a record date after the
  Effective Time but prior to surrender thereof and a payment date subsequent
  to surrender thereof payable with respect to such shares of Buyer Common
  Stock, less the amount of any withholding taxes which may be required
  thereon.
 
    (iv) At or after the Effective Time, there shall be no transfers on the
  stock transfer books of the Corporation of Shares which were outstanding
  immediately prior to the Effective Time. If, after the Effective Time,
  Certificates are presented to the Surviving Corporation, they shall be
  cancelled and exchanged for certificates for shares of Buyer Common Stock
  in accordance with the procedures set forth in this Article 4. Certificates
  surrendered for exchange by any person constituting an "affiliate" of the
  Corporation within the meaning of Rule 145(c) under the Securities Act of
  1933, as amended (the "Securities Act"), shall not be exchanged until Buyer
  has received a written agreement from such person as provided in Section
  7.13.
 
    (v) Notwithstanding Section 4.1 or any other provision of this Section
  4.2, no fractional shares of Buyer Common Stock will be issued and any
  holder of Shares entitled hereunder to receive a fractional share of Buyer
  Common Stock but for this Section 4.2(v) will be entitled hereunder to
  receive no such fractional share of Buyer Common Stock but a cash payment
  in lieu thereof, which payment shall represent such holder's proportionate
  interest in the net proceeds from the sale by the Exchange Agent on behalf
  of all such holders of the aggregate fractional shares of Buyer Common
  Stock that such holders would be entitled to receive but for this Section
  4.2(v). Any such sale shall be made by the Exchange Agent within ten
  business days after the date upon which the Certificate(s) that would
  otherwise result in the issuance of shares of Buyer Common Stock have been
  received by the Exchange Agent.
 
    (vi) Any portion of the Exchange Fund (including the proceeds of any
  investments thereof and any shares of Buyer Common Stock) that is unclaimed
  by the former stockholders of the Corporation during the one year period
  after the Effective Time shall be delivered to the Surviving Corporation.
  Any former stockholders of the Corporation who have not theretofore
  complied with this Article 4 shall thereafter look to the Surviving
  Corporation only as general creditors for payment of their shares of Buyer
  Common Stock, and cash in lieu of fractional shares, and unpaid dividends
  and distributions on shares of Buyer Common Stock, deliverable in respect
  of each Share such stockholder holds as determined pursuant to this
  Agreement, in each case without any interest thereon.
 
    (vii) None of the Corporation, the Surviving Corporation, Merger Sub, the
  Exchange Agent or any other person shall be liable to any former holder of
  Shares for any amount properly delivered to a public official pursuant to
  applicable abandoned property, escheat or similar laws.
 
    (viii) In the event any Certificate shall have been lost, stolen or
  destroyed, upon the making of an affidavit of that fact by the person
  claiming such Certificate to be lost, stolen or destroyed and, if required
  by the Surviving Corporation, the posting by such person of a bond in such
  reasonable amount as the Surviving Corporation may direct as indemnity
  against any claim that may be made against it with respect to such
  Certificate, the Exchange Agent will issue in exchange for such lost,
  stolen or destroyed Certificate shares of Buyer Common Stock and cash in
  lieu of fractional shares, and unpaid dividends and distributions on shares
  of Buyer Common Stock as provided in Section 4.2(iii), deliverable in
  respect thereof pursuant to this Agreement.
 
  4.3. Adjustment of Exchange Ratio. In the event that between the date of this
Agreement and the Effective Time, Buyer or the Corporation changes the number
of shares of Buyer Common Stock or Shares issued and outstanding as a result of
a stock split, reverse stock split, stock dividend, recapitalization or other
similar transaction, the Exchange Ratio shall be appropriately adjusted.
 
  4.4. Escrow. Of the aggregate shares of Buyer Common Stock issuable upon
consummation of the Merger at the Effective Time, Buyer shall deposit in escrow
a number of shares of Buyer Common Stock equal to 20% of the total number of
shares of Buyer Common Stock to be issued in connection with the Merger (the
"Escrowed Shares"), pursuant to the terms of an Escrow Agreement (the "Escrow
Agreement") in the form attached hereto as Exhibit 4.4, to be entered into
among the Corporation, Buyer and an escrow
 
                                      A-5
<PAGE>
 
agent to be selected by Sterling, which may be the Exchange Agent (the "Escrow
Agent"). The Escrowed Shares shall be issued in the name of the Escrow Agent
and shall be released if and as permitted under the terms of the Escrow
Agreement to the record holders of Shares as of the Effective Time pro rata
based on the number of Shares held by such holders at the Effective Time;
provided that such holders shall have complied with Section 4.2 in connection
with the surrender of their Certificates. No fractional shares of Buyer Common
Stock will be issued in connection with any distribution of Escrowed Shares and
any person that would otherwise be entitled under the Escrow Agreement to
receive a fractional share will receive a cash payment in lieu thereof, which
payment shall represent such holder's proportionate interest in the net
proceeds from the sale by the Escrow Agent, within ten business days following
the date of the final disbursement of the Escrowed Shares, on behalf of all
such persons of the aggregate fractional shares of Buyer Common Stock that such
persons would otherwise be entitled to receive.
 
                                   ARTICLE 5
 
  5. Representations and Warranties of the Corporation. Except as set forth in
the disclosure letter delivered at or prior to the execution hereof to Buyer
(the "Corporation Disclosure Letter"), the Corporation represents and warrants
to Buyer as of the date of this Agreement as follows:
 
  5.1. Existence; Good Standing; Corporate Authority; Compliance With Law. The
Corporation is a corporation duly incorporated, validly existing and in good
standing under the laws of its jurisdiction of incorporation. The Corporation
is duly licensed or qualified to do business as a foreign corporation and is in
good standing under the laws of any other state of the United States in which
the character of the properties owned or leased by it therein or in which the
transaction of its business makes such qualification necessary, except where
the failure to be so qualified would not have a material adverse effect on the
Corporation. As used in this Agreement, the term "material adverse effect"
means, with respect to any entity, a material adverse effect on the financial
condition, properties, business or results of operations of such entity and its
subsidiaries taken as a whole, or on the ability of such entity to perform its
obligations hereunder or to consummate the transactions contemplated hereby.
The Corporation has all requisite corporate power and authority to own, operate
and lease its properties and carry on its business as now conducted. The
Corporation is not in default with respect to any order of any court,
governmental authority or arbitration board or tribunal to which the
Corporation is a party or is subject, and the Corporation is not in violation
of any laws, ordinances, governmental rules or regulations to which it is
subject, where such default or violation would have a material adverse effect
on the Corporation. The Corporation has obtained all licenses, permits and
other authorizations and has taken all actions required by applicable law or
governmental regulation in connection with its business as now conducted where
the failure to obtain any such item or to take any such action would have a
material adverse effect on the Corporation. The copies of the Corporation's
Articles of Incorporation and Bylaws previously delivered to Buyer are true and
correct.
 
  5.2. Authorization, Validity and Effect of Agreements. The Corporation has
the requisite corporate power and authority to execute and deliver this
Agreement and the Stock Option Agreement and all agreements and documents
contemplated hereby, and the consummation by the Corporation of the
transactions contemplated hereby and thereby have been duly authorized by all
requisite corporate action (subject, in the case of this Agreement, only to the
approval of the Merger by the holders of a majority of the outstanding Shares
in accordance with the GBCC). This Agreement and the Stock Option Agreement
constitute, and all agreements and documents contemplated hereby (when executed
and delivered pursuant hereto for value received) will constitute, the valid
and legally binding obligations of the Corporation enforceable in accordance
with their terms.
 
  5.3. Capitalization. The authorized capital stock of the Corporation consists
of 100,000,000 Shares and 50,000,000 shares of preferred stock, no par value
(the "Preferred Stock"). As of June 30, 1994, there were 14,562,381 Shares
issued and outstanding. As of such date there were no shares of Preferred Stock
issued and outstanding. Since such date, no additional shares of capital stock
of the Corporation have been issued
 
                                      A-6
<PAGE>
 
except pursuant to the Corporation Stock Option Plans and the Warrants. Other
than Shares reserved for issuance pursuant to the Stock Option Agreement, the
Corporation has no Shares or shares of Preferred Stock reserved for issuance,
except that, as of the above-referenced date, 59,979 Shares were reserved for
issuance pursuant to the Incentive Stock Option Plan of 1984 and the Second
Incentive Stock Option Plan of 1984, 1,487,701 Shares were reserved for
issuance pursuant to the 1988 Stock Incentive Plan, 6,000 Shares were reserved
for issuance pursuant to the 1989 Non-Employee Directors Stock Option Plan,
392,778 Shares were reserved for issuance pursuant to the 1989 Employee Stock
Purchase Plan, 50,000 Shares were reserved for issuance pursuant to the 1993
Directors Plan and 500,000 Shares were reserved for issuance pursuant to the
Warrants. The Corporation has no outstanding bonds, debentures, notes or other
obligations the holders of which have the right to vote (or are convertible
into or exercisable for securities having the right to vote) with the
stockholders of the Corporation on any matter ("Voting Debt"). All such issued
and outstanding Shares are duly authorized, validly issued, fully paid,
nonassessable and free of preemptive rights. Other than as set forth above or
in the Corporation Disclosure Letter, or as contemplated by this Agreement or
the Stock Option Agreement, there are not at the date of this Agreement any
existing options, warrants, calls, put rights, subscriptions, convertible
securities, or other rights or other agreements or commitments which obligate
the Corporation or any of its subsidiaries to issue, transfer, sell or purchase
any shares of capital stock of the Corporation or any of its subsidiaries.
After the Effective Time, the Surviving Corporation will have no obligation to
issue, transfer or sell any Shares or shares of Preferred Stock or any other
securities of the Surviving Corporation pursuant to any Benefit Plan (as
defined in Section 5.12) or Corporation Stock Option Plan.
 
  5.4. Subsidiaries. The Corporation owns directly or indirectly each of the
outstanding shares of capital stock of each of the Corporation's subsidiaries
(individually, a "Corporation Subsidiary" and collectively, the "Corporation
Subsidiaries"), except as set forth in the Corporation Reports (as defined in
Section 5.7) filed prior to the date of this Agreement and the Corporation
Disclosure Letter and except shares held by officers and directors of the
Corporation and Corporation Subsidiaries or agents of the Corporation as
nominees for the benefit of the Corporation or any Corporation Subsidiary. Each
of the outstanding shares of capital stock of each of the Corporation
Subsidiaries is duly authorized, validly issued, fully paid and nonassessable
(or, in the case of foreign Corporation Subsidiaries, is appropriately
authorized, validly issued and, if applicable under local law, nonassessable),
and except as set forth in the Corporation Disclosure Letter are owned,
directly or indirectly, by the Corporation free and clear of all liens,
pledges, security interests, claims or other encumbrances. The following
information for each Corporation Subsidiary is set forth in the Corporation
Disclosure Letter, as applicable: (i) its name and jurisdiction of
incorporation; (ii) its authorized capital stock or share capital; (iii) the
number of issued and outstanding shares of capital stock or share capital; and
(iv) the names of its directors, officers and/or managing director.
 
  5.5. Other Interests. Except as set forth in the Corporation Disclosure
Letter, neither the Corporation nor any Corporation Subsidiary owns directly or
indirectly any interest or investment (whether equity or debt) in any
corporation, partnership, joint venture, business, trust or entity (other than
investments in short-term investment securities and teaming, corporate
partnering, development, cooperative marketing and similar undertakings and
arrangements entered into in the ordinary course of business).
 
  5.6. Noncontravention. Except as set forth in the Corporation Disclosure
Letter, neither the execution and delivery by the Corporation of this Agreement
or the Stock Option Agreement, nor the consummation by the Corporation of the
transactions contemplated hereby and thereby in accordance with the terms
hereof and thereof, will: (i) conflict with or result in a breach of any
provisions of the Articles of Incorporation or Bylaws of the Corporation; (ii)
except as disclosed in the Corporation Reports (as hereinafter defined) or the
Corporation Disclosure Letter, result in a breach or violation of, a default
under, or the triggering of any payment or other material obligations pursuant
to, or accelerate vesting under, any of the Corporation Stock Option Plans or
any grant or award made under any of the Corporation Stock Option Plans, (iii)
violate, or conflict with, or result in a breach of any provision of, or
constitute a default (or an event which, with notice or lapse of time or both,
would constitute a default) under, or result in the termination or in a right
of
 
                                      A-7
<PAGE>
 
termination or cancellation of, or accelerate the performance required by, or
result in the creation of any lien, security interest, charge or encumbrance
upon any of the material properties of the Corporation under, or result in
being declared void, voidable, or without further binding effect, any of the
terms, conditions or provisions of any note, bond, mortgage, indenture, deed of
trust or any material license, franchise, permit, lease, contract, agreement or
other instrument or commitment or obligation to which the Corporation or any of
the Corporation Subsidiaries is a party ("Contracts") (other than Contracts
with customers, software license agreements with third parties relating to the
use of commercially available software and Contracts for the purchase or lease
of tangible personal property entered into in the ordinary and usual course of
business, but including without limitation, strategic alliance agreements,
third party software development agreements and third party software license
agreements relating to software incorporated into the Corporation's software
products, and other than Contracts which require the consent of the other party
or parties thereto to assign or transfer to Merger Sub or Buyer by reason of
the execution of this Agreement or the consummation of the transactions
contemplated hereby which required consents are set forth in the Corporation
Disclosure Letter and with respect to which the parties hereto shall use
reasonable efforts to obtain prior to the Closing), or by which the Corporation
or any of its properties is bound or affected except with respect to matters
which are not material to the Corporation; or (iv) other than the filings
provided for in Article 1, as required under the Hart-Scott-Rodino Antitrust
Improvements Act of 1976 (the "HSR Act") and under the Securities Exchange Act
of 1934, as amended (the "Exchange Act"), the Securities Act, applicable state
securities and "Blue Sky" laws, and the rules and regulations promulgated by
the National Association of Securities Dealers, Inc. and in connection with the
maintenance of qualification to do business in other jurisdictions
(collectively, the "Regulatory Filings"), require any material consent,
approval or authorization of, or declaration, filing or registration with, any
governmental or regulatory authority, domestic or foreign, of which the failure
to obtain would have a material adverse effect on the Corporation.
 
  5.7 Reports; Financial Statements. The Corporation has delivered to Buyer
each registration statement, report, proxy statement or information statement
prepared by it since June 30, 1993, including, without limitation, (i) its
Annual Report on Form 10-K for the year ended June 30, 1993, (ii) its Quarterly
Reports on Form 10-Q for the periods ended September 30, 1993, December 31,
1993 and March 31, 1994 and (iii) its Annual Report on Form 10-K for the year
ended June 30, 1994, each in the form (including exhibits and any amendments
thereto) filed with the Securities and Exchange Commission (the "SEC")
(collectively, the "Corporation Reports"). As of their respective dates, except
as set forth in the Corporation Disclosure Letter, the Corporation Reports (i)
were prepared in all material respects in accordance with the requirements of
the Securities Act, the Exchange Act, and the rules and regulations thereunder
and (ii) did not contain any untrue statement of a material fact or omit to
state a material fact required to be stated therein or necessary to make the
statements made therein, in the light of the circumstances under which they
were made, not misleading. Except as set forth in the Corporation Disclosure
Letter, each of the consolidated balance sheets included in or incorporated by
reference into the Corporation Reports (including the related notes and
schedules) fairly presents the consolidated financial position of the
Corporation and the Corporation Subsidiaries as of its date and each of the
consolidated statements of income, retained earnings and of cash flows included
in or incorporated by reference into the Corporation Reports (including any
related notes and schedules) fairly presents the results of operations,
retained earnings and cash flows, as the case may be, of the Corporation and
the Corporation Subsidiaries for the periods set forth therein (subject, in the
case of unaudited balance sheets and statements, to normal year-end audit
adjustments which would not be material in amount or effect), in each case in
accordance with the published rules and regulations of the SEC and generally
accepted accounting principles consistently applied during the periods
involved, except as may be noted therein. Except as and to the extent set forth
on the consolidated balance sheet of the Corporation and the Corporation
Subsidiaries at June 30, 1993 or at June 30, 1994, including all notes thereto,
neither the Corporation nor any of the Corporation Subsidiaries has any
material liabilities or obligations of any nature (whether accrued, absolute,
contingent or otherwise) that would be required to be reflected on, or reserved
against in, a balance sheet of the Corporation or in the notes thereto,
prepared in accordance with the published rules and regulations of the SEC and
generally accepted accounting principles consistently applied, except
liabilities arising in the ordinary course of business since such date. Except
as set forth in the Corporation Disclosure
 
                                      A-8
<PAGE>
 
Letter, other than the Corporation Reports and any reports filed subsequent to
the date hereof, the Corporation has not filed any other definitive reports or
statements with the SEC since June 30, 1994.
 
  5.8. Litigation. Except as disclosed in the Corporation Disclosure Letter,
there are no actions, suits or proceedings pending against the Corporation or
the Corporation Subsidiaries or, to the actual knowledge of the executive
officers of the Corporation, threatened against the Corporation or the
Corporation Subsidiaries, at law or in equity, or before or by any federal,
state, commission, board, bureau, agency or instrumentality that are reasonably
likely to have a material adverse effect on the Corporation.
 
  5.9. Absence of Certain Changes. Except as disclosed in the Corporation
Reports filed with the SEC on or prior to the date hereof, the Corporation
Disclosure Letter and except for changes arising from the public announcement
of the transactions contemplated by this Agreement, since June 30, 1993, the
Corporation has conducted its business only in the ordinary course of such
business and there has not been (i) any change in the Corporation or any
development or combination of developments of which any of its executive
officers has actual knowledge which has resulted or is reasonably likely to
result in a material adverse effect on the Corporation; (ii) any declaration,
setting aside or payment of any dividend or other distribution with respect to
its capital stock; or (iii) any material change in its accounting principles,
practices or methods.
 
  5.10. Taxes and Tax Returns. The Corporation and each Corporation Subsidiary
(i) has timely filed all material federal, state and foreign income, franchise,
property, sales, use, payroll and other tax returns and reports required to be
filed by it for its tax years ended prior to the date of this Agreement or
requests for extensions have been timely filed and any such request shall have
been granted and not expired and all such filed returns are complete in all
material respects, (ii) has paid or accrued all taxes shown to be due and
payable on such returns, (iii) has properly accrued all such taxes for such
periods subsequent to the periods covered by such returns, and (iv) the "open"
years for federal income tax returns are set forth in the Corporation
Disclosure Letter.
 
  5.11. Proprietary Rights. The Corporation and the Corporation Subsidiaries
own or have the right to use pursuant to lease or license computer software
programs, which, in the aggregate, are sufficient and adequate to operate the
business of the Corporation and the Corporation's Subsidiaries. The Corporation
Disclosure Letter sets forth all current versions or releases of the computer
software programs ("software") owned or marketed by the Corporation or the
Corporation Subsidiaries (other than commercially available software products
which are not material to the Corporation). Except as set forth in the
Corporation Disclosure Letter, the Corporation or one of the Corporation
Subsidiaries has good and marketable rights, title and interest in and to all
versions or releases of that software, free and clear of any liens, charges,
restrictions or encumbrances or rights of any third party. Neither the
existence nor use in the business of the Corporation or any Corporation
Subsidiary of any version or release of any software program set forth in the
Corporation Disclosure Letter infringes on any patent, trademark or copyright,
violates any trade secret, know how, process or proprietary information of any
third party or entitles any third party to any interest in or right to
compensation from the Corporation or any Corporation Subsidiary by reason of
the use, exploitation or sale of any such software programs. Except with
respect to programs licensed to the Corporation or one of the Corporation
Subsidiaries and set forth in the Corporation Disclosure Letter, the
Corporation or one of the Corporation Subsidiaries is in actual possession of
the source code of each software program set forth in the Corporation
Disclosure Letter and the Corporation or one of the Corporation Subsidiaries is
in possession of all other documentation necessary for the effective use of
each such software. The Corporation Disclosure Letter lists, by program, all
third parties which have been provided with the source code to any of the
software listed in the Corporation Disclosure Letter and any parties who would
be entitled to receive such source code as a result of transactions
contemplated by this Agreement. There are no defects in any of the software
offered by the Corporation or any of the Corporation Subsidiaries in connection
with its business which would, in any material and adverse respect, affect the
functioning of any such software in accordance with the specifications therefor
published by the Corporation or any of the Corporation Subsidiaries or provided
to its customers or prospective customers, and each piece of such software,
together
 
                                      A-9
<PAGE>
 
with all know how and process used in connection therewith, functions as
intended, is in machine readable form, conforms to all applicable standards,
contains all current revisions of such software and includes all computer
programs, materials, tapes, know how, object and source codes and procedures
used by it in the conduct of its business. Except for rights of customers under
Contracts or as disclosed in the Corporation Disclosure Letter, no other person
has (i) any interest of any kind or nature in or with respect to any software
program or portion thereof set forth in the Corporation Disclosure Letter, or
(ii) any rights to use, market or exploit any such software program or portion
thereof. The Corporation has registered the trademarks, service marks and
copyrights identified in the Corporation Disclosure Letter, such trademarks,
service marks and copyrights do not infringe upon the rights of any third
parties, nor have any claims been asserted with respect thereto, which
infringement would have a material adverse effect on the Corporation. To the
actual knowledge of the executive officers of the Corporation, there exist no
material defaults under contracts with Rottger & Osterberg Software - Technik
GmbH, Burl Software Laboratories, Inc., Object Design, Inc., Integrated
Microcomputer Systems, Inc., and International Business Machines Corporation
("IBM"); provided, however, this sentence shall not apply to the following
contracts: (i) Stockholders Agreement dated as of August 18, 1989, by and among
IBM, Francis A. Tarkenton, James Martin, Arthur Young United States and the
Corporation, (ii) Common Stock Purchase Agreement by and between the
Corporation and IBM, and (iii) Revolving Loan and Security Agreement by and
between IBM Credit Corporation and the Corporation.
 
  5.12. Employee Benefit Plans. All material employee benefit plans covering
employees of the Corporation and the Corporation Subsidiaries, other than the
Corporation Stock Option Plans, are listed in the Corporation Reports (the
"Benefit Plans") and the Corporation Disclosure Letter. To the extent
applicable, the Benefit Plans comply, in all material respects, with the
requirements of the Employee Retirement Income Security Act of 1974, as amended
("ERISA") and the Code, and any Benefit Plan intended to be qualified under
Section 401(a) of the Code has been determined by the Internal Revenue Service
to be so qualified. No Benefit Plan is covered by Title IV of ERISA or Section
412 of the Code. Neither a Benefit Plan nor the Corporation has incurred any
liability or penalty under Section 4975 of the Code or Section 502(i) of ERISA.
Each Benefit Plan has been maintained and administered in all material respects
in compliance with its terms and with ERISA and the Code to the extent
applicable thereto. To the knowledge of the executive officers of the
Corporation, there are no pending or anticipated material claims against or
otherwise involving any of the Benefit Plans and no suit, action or other
litigation (excluding claims for benefits incurred in the ordinary course of
Benefit Plan activities) has been brought against or with respect to any such
Benefit Plan. All material contributions required to be made as of the date
hereof to the Benefit Plans have been made or provided for. All payments to
employees pursuant to and vesting of benefits under employment, severance or
termination agreements and pursuant to severance policies of the Corporation
are set forth in the Corporation Disclosure Letter.
 
  5.13. Labor Matters. The Corporation is not a party to or bound by any
collective bargaining agreement. There is no unfair labor practice or labor
arbitration proceedings pending or, to the actual knowledge of the executive
officers of the Corporation and except as provided in the Corporation
Disclosure Letter, threatened relating to its business. To the actual knowledge
of the executive officers of the Corporation, there are not any organizational
efforts presently being made or threatened involving employees of the
Corporation.
 
  5.14 No Brokers. Except as set forth in the Corporation Disclosure Letter,
the Corporation has not entered into any contract, arrangement or understanding
with any person or firm which may result in the obligation of Buyer to pay, and
the Corporation is not aware of any claim for payment of, any finder's fees,
brokerage or agent's commissions or other like payments in connection with the
negotiations leading to this Agreement or the consummation of the transactions
contemplated hereby.
 
  5.15 Takeover Statutes. The provisions of Parts 2 and 3 of Article 11 of the
GBCC as they relate to the Corporation, the provisions of Article 8 of the
Restated Articles of Incorporation of the Corporation and the provisions of
Articles 13, 14 and 15 of the Bylaws of the Corporation do not and will not
apply to this
 
                                      A-10
<PAGE>
 
Agreement, the Stock Option Agreement, the Stockholder Agreements or the
transactions contemplated hereby and thereby because the Corporation's Board of
Directors has approved the execution and delivery of this Agreement and the
Stock Option Agreement and the transactions contemplated hereby and thereby in
accordance with those provisions of the GBCC, the Restated Articles of
Incorporation of the Corporation and the Bylaws of the Corporation.
 
  5.16 Related Parties. Except as disclosed in the Corporation Disclosure
Letter or the Corporation Reports, to the actual knowledge of the executive
officers of the Corporation, none of the executive officers or directors of the
Corporation or the Corporation Subsidiaries, or any beneficial owner of two
percent (2%) or more of the outstanding Shares, or any entity controlled by any
of the foregoing or any member of the immediate family of any of the foregoing:
 
    (i) owns, directly or indirectly, any interest in (except for stock
  holdings not in excess of two percent (2%) held solely for investment
  purposes in securities which are listed on a national securities exchange
  or which are regularly traded in the over-the-counter market), or is an
  owner, sole proprietor, stockholder, partner, director, officer, employee,
  provider, consultant or agent of any person which is a competitor, lessor,
  lessee or customer of, or supplier of goods or services to, the Corporation
  or any of the Corporation Subsidiaries, except where the value to such
  person of any such arrangement with the Corporation and the Corporation
  Subsidiaries has been less than $60,000 in the last 12 months;
 
    (ii) owns, directly or indirectly, in whole or in part, any real
  property, leasehold interests, tangible property or intangible property
  with a fair market value of $60,000 or more which the Corporation or any of
  the Corporation Subsidiaries currently use in their respective businesses;
 
    (iii) has any cause of action or other suit, action or claim whatsoever
  against, or owes any amount to the Corporation or any of the Corporation
  Subsidiaries, except for claims in the ordinary course of business, such as
  for accrued vacation pay, accrued benefits under Compensation Plans and
  similar matters; or
 
    (iv) has sold to, or purchased from, the Corporation or any of the
  Corporation Subsidiaries any assets or property for consideration in excess
  of $60,000 in the aggregate since June 30, 1993.
 
  As used in this Section 5.16, a person's immediate family shall mean such
person's spouse, parents, grandparents, uncles, aunts, first cousins, children,
siblings, mothers and fathers-in-law, sons and daughters-in-law, and brothers
and sisters-in-law.
 
                                   ARTICLE 6
 
  6. Representations and Warranties of Buyer. Except as set forth in the
disclosure letter delivered at or prior to the execution hereof by Buyer to the
Corporation (the "Buyer Disclosure Letter"), Buyer represents and warrants to
the Corporation as of the date of this Agreement as follows:
 
  6.1. Existence; Good Standing; Corporate Authority; Compliance With
Law. Buyer is a corporation duly incorporated, validly existing in good
standing under the laws of its state of incorporation. Buyer is duly licensed
or qualified to do business as a foreign corporation and in good standing under
the laws of any other state of the United States in which the character of the
properties owned or leased by it therein or in which the transaction of its
business makes such qualification necessary, except where the failure to be so
qualified would not have a material adverse effect on Buyer. Buyer has all
requisite corporate power and authority to own, operate and lease its
properties and carry on its business as now conducted. Neither Buyer nor Merger
Sub is in default with respect to any order of any court, governmental
authority or arbitration board or tribunal to which Buyer or Merger Sub is a
party or is subject, and neither Buyer nor Merger Sub is in violation of any
laws, ordinances, governmental rules or regulations to which it is subject,
where such default or violation would have a material adverse effect on Buyer.
Buyer and Merger Sub have obtained all licenses, permits and other
authorizations and have taken all actions required by applicable law or
governmental
 
                                      A-11
<PAGE>
 
regulations in connection with their business as now conducted, where the
failure to obtain any such item or to take any such action would have a
material adverse effect on Buyer. The copies of Buyer's Certificate of
Incorporation and Bylaws previously delivered to the Corporation are true and
correct. Merger Sub is a corporation duly incorporated, validly existing and in
good standing under the laws of Georgia. Merger Sub has not conducted any
business or incurred any liabilities other than in connection with the
negotiation and execution of this Agreement. Merger Sub has the corporate power
and authority to execute and deliver this Agreement and consummate the
transactions contemplated hereby.
 
  6.2. Authorization, Validity and Effect of Agreements. The sole stockholder
of Merger Sub has approved this Agreement. The execution and delivery of this
Agreement and all agreements and documents contemplated hereby by Buyer and
Merger Sub, and the consummation by them of the transactions contemplated
hereby and thereby, have been duly authorized by all requisite corporate
action. This Agreement constitutes, and all agreements and documents
contemplated hereby (when executed and delivered pursuant hereto for value
received) will constitute, the valid and legally binding obligations of Buyer
and Merger Sub, enforceable in accordance with their terms.
 
  6.3. Capitalization. The authorized capital stock of Buyer consists of
50,000,000 shares of Buyer Common Stock and 10,000,000 shares of Preferred
Stock, par value $.10 per share. As of June 30, 1994, 20,275,521 shares of
Buyer Common Stock were issued and outstanding, 1,743,398 shares of Buyer
Common Stock were held in treasury and 200,000 shares of Preferred Stock were
issued and outstanding. On or about the date of this Agreement, Buyer will
issue approximately 306,550 shares of Buyer Common Stock in connection with an
acquisition previously disclosed to the Corporation. The Corporation has no
shares of Buyer Common Stock or Preferred Stock reserved for issuance, except
that, as of the above-referenced date, an aggregate of 8,891,036 shares of
Buyer Common Stock were reserved for issuance pursuant to stock option plans
of, or assumed by, Buyer, an aggregate of 230,017 shares of Buyer Common Stock
were reserved for issuance pursuant to certain warrants issued or assumed by
Buyer and 4,056,437 shares of Buyer Common Stock were reserved for issuance
pursuant to the terms of Buyer's 5 3/4% Convertible Subordinated Debentures.
Buyer has no outstanding bonds, debentures, notes or other obligations the
holders of which have the right to vote (or are convertible into or exercisable
for securities having the right to vote) with the stockholders of Buyer on any
matter ("Voting Debt"). All such issued and outstanding shares of Buyer Common
Stock and Preferred Stock are duly authorized, validly issued, fully paid,
nonassessable and free of preemptive rights. Other than as set forth in the
Buyer Disclosure Letter, or as contemplated by this Agreement, there are not at
the date of this Agreement any existing options, warrants, calls,
subscriptions, convertible securities, or other rights or other agreements or
commitments which obligate Buyer or any of its subsidiaries to issue, transfer
or sell any shares of capital stock of Buyer or any of its subsidiaries in
excess of the reserved share amounts set forth above.
 
  6.4. Subsidiaries. Buyer owns directly or indirectly each of the outstanding
shares of capital stock of each of Buyer's subsidiaries (individually, a "Buyer
Subsidiary" and collectively, the "Buyer Subsidiaries"), except as set forth in
Buyer Reports (as defined in Section 6.6) filed prior to the date of this
Agreement and except shares held by officers and directors of Buyer and Buyer
Subsidiaries or agents of Buyer as nominees for the benefit of Buyer or any
Buyer Subsidiary. The following information for each Buyer Subsidiary has been
previously provided to the Corporation or will be provided in the Buyer
Disclosure Letter as applicable: (i) its name and jurisdiction of
incorporation; (ii) its authorized capital stock or share capital; (iii) the
number of issued and outstanding shares of capital stock or share capital; and
(iv) the names of its directors, officers and managing director.
 
  6.5. Noncontravention. Except as set forth in the Buyer Disclosure Letter,
neither the execution and delivery by Buyer of this Agreement or the Stock
Option Agreement, nor the consummation by Buyer of the transactions
contemplated hereby and thereby in accordance with the terms hereof and
thereof, will: (i) conflict with or result in a breach of any provisions of the
Certificate of Incorporation or Bylaws of Buyer; (ii) violate, or conflict
with, or result in a material breach of any provision of, or constitute a
default (or an event which, with notice or lapse of time or both, would
constitute a default) under, or result in the
 
                                      A-12
<PAGE>
 
termination or in a right of termination or cancellation of, or accelerate the
performance required by, or result in the creation of any material lien,
security interest, charge or encumbrance upon any of the material properties of
Buyer under, or result in being declared void, voidable, or without further
binding effect, any of the terms, conditions or provisions of any Contract, to
which Buyer is a party, or by which Buyer or any of its properties is bound or
affected except with respect to matters which are not material to Buyer; or
(iii) other than Regulatory Filings, require any material consent, approval or
authorization of, or declaration, filing or registration with, any governmental
or regulatory authority, of which the failure to obtain which would have a
material adverse effect on Buyer.
 
  6.6. Reports; Financial Statements. Buyer has delivered to the Corporation
each registration statement, report, proxy statement or information statement
prepared by it since September 30, 1993, including, without limitation, (i) its
Annual Report on Form 10-K for the year ended September 30, 1993, and (ii) its
Quarterly Reports on Form 10-Q for the periods ended December 31, 1993, March
31, 1994 and June 30, 1994, each in the form (including exhibits and any
amendments thereto) filed with the SEC collectively, the "Buyer Reports"). As
of their respective dates, the Buyer Reports (i) were prepared in accordance
with the requirements of the Securities Act, the Exchange Act, and the rules
and regulations thereunder and (ii) did not contain any untrue statement of a
material fact or omit to state a material fact required to be stated therein or
necessary to make the statements made therein, in the light of the
circumstances under which they were made, not misleading. Each of the
consolidated balance sheets included in or incorporated by reference into the
Buyer Reports (including any related notes and schedules) fairly presents the
consolidated financial position of Buyer and the Buyer Subsidiaries as of its
date and each of the consolidated statements of income, retained earnings and
of cash flows included in or incorporated by reference into the Buyer Reports
(including any related notes and schedules) fairly presents the results of
operations, retained earnings and cash flows, as the case may be, of Buyer and
the Buyer Subsidiaries for the periods set forth therein (subject, in the case
of unaudited balance sheets and statements, to normal year-end adjustments
which would not be material in amount or effect), in each case in accordance
with the published rules and regulations of the SEC and generally accepted
accounting principles consistently applied during the periods involved, except
as may be noted therein. Except as and to the extent set forth on the
consolidated balance sheet of Buyer and the Buyer Subsidiaries at September 30,
1993, including all notes thereto, neither Buyer nor any of the Buyer
Subsidiaries has any material liabilities or obligations of any nature (whether
accrued, absolute, contingent or otherwise) that would be required to be
reflected on, or reserved against in, a balance sheet of Buyer or in the notes
thereto, prepared in accordance with the published rules and regulations of the
SEC and generally accepted accounting principles except liabilities arising in
the ordinary course of business since such date.
 
  6.7. Litigation. Except as disclosed in the Buyer Disclosure Letter, there
are no actions, suits or proceedings pending against Buyer or the Buyer
Subsidiaries or, to the actual knowledge of the executive officers of Buyer,
threatened against Buyer or the Buyer Subsidiaries, at law or in equity, or
before or by any federal, state, commission, board, bureau, agency or
instrumentality that are reasonably likely to have a material adverse effect on
Buyer.
 
  6.8. Absence of Certain Changes. Except as disclosed in the Buyer Reports
filed with the SEC prior to the date hereof and except for changes arising from
the public announcement of the transactions contemplated by this Agreement,
since September 30, 1993, Buyer has conducted its business only in the ordinary
course of such business and there has not been (i) any change in Buyer or any
development or combination of developments of which any of its executive
officers has actual knowledge which has resulted or is reasonably likely to
result in a material adverse effect on Buyer; (ii) except for regular dividends
on Buyer's Preferred Stock, any declaration, setting aside or payment of any
dividend or other distribution with respect to its capital stock; or (iii) any
material change in its accounting principles, practices or methods.
 
  6.9. Taxes and Tax Returns. Buyer (i) has timely filed all material federal,
state and foreign income, franchise, property, sales, use, payroll and other
tax returns and reports required to be filed by it for the years ended prior to
the date of this Agreement or requests for extensions have been timely filed
and any such request shall have been granted and not expired and all such filed
returns are complete in all material
 
                                      A-13
<PAGE>
 
respects, (ii) has paid or accrued all taxes shown to be due and payable on
such returns and (iii) has properly accrued all such taxes for periods
subsequent to the periods covered by such returns.
 
  6.10. Proprietary Rights. Buyer and Buyer Subsidiaries own or have the right
to use pursuant to lease or license computer software programs, which, in the
aggregate, are sufficient and adequate to operate the business of the Buyer
Subsidiaries. To the knowledge of the executive officers of Buyer, and except
as described in the Buyer Disclosure Letter, Buyer's trademarks, service marks
and copyrights do not infringe upon the rights of any third parties, nor have
any claims been asserted with respect thereto except for such infringement
which would not have a material adverse effect on Buyer.
 
  6.11. Labor Matters. Buyer is not a party to or bound any collective
bargaining agreement. There is no unfair labor practice or labor arbitration
proceeding pending or, to the actual knowledge of the executive officers of
Buyer, threatened relating to its business. To the actual knowledge of the
executive officers of Buyer, there are not any organizational efforts presently
being made or threatened involving employees of Buyer.
 
  6.12. No Brokers. Except as set forth in the Buyer Disclosure Letter, Buyer
has not entered into any contract, arrangement or understanding with any person
or firm which may result in the obligation of Buyer to pay, and Buyer is not
aware of any claim for payment of, any finder's fees, brokerage or agent's
commissions or other like payments in connection with the negotiations leading
to this Agreement or the consummation of the transactions contemplated hereby.
 
  6.13. Capital Stock. The shares of Common Stock of Merger Sub are validly
issued, fully paid and nonassessable and are owned directly by Buyer, free and
clear of all liens, claims and encumbrances. The issuance and delivery by Buyer
of shares of Buyer Common Stock in connection with the Merger have been duly
and validly authorized by all necessary corporate action on the part of Buyer
except for the approval of its shareholders contemplated by this Agreement. The
shares of Buyer Common Stock to be issued in connection with the Merger, when
issued in accordance with the terms of this Agreement, will be validly issued,
fully paid and nonassessable and listed on the New York Stock Exchange
("NYSE").
 
                                   ARTICLE 7
 
  7. Covenants.
 
  7.1. Acquisition Proposals. Prior to the earlier of the Effective Time or the
termination of this Agreement, the Corporation agrees (a) that neither the
Corporation nor any of the Corporation Subsidiaries, and the Corporation shall
direct and use its best efforts to cause their respective officers, directors,
employees, agents and representatives (including, without limitation, any
investment banker, attorney or accountant retained by it or any of the
Corporation Subsidiaries) not to, initiate, solicit or encourage, directly or
indirectly, any inquiries or the making or implementation of any proposal or
offer (including, without limitation, any proposal or offer to its
stockholders) with respect to a merger, acquisition, consolidation or similar
transaction involving, or any purchase of all or any significant portion of the
assets or any equity securities of, the Corporation or any of the Corporation
Subsidiaries (any such proposal or offer being hereinafter referred to as an
"Acquisition Proposal") or engage in any negotiations concerning, or provide
any confidential information or data to, or have any discussions with, any
person relating to an Acquisition Proposal, or otherwise facilitate any effort
or attempt to make or implement an Acquisition Proposal; (b) that the
Corporation will immediately cease and cause to be terminated any existing
activities, discussions or negotiations with any parties conducted heretofore
with respect to any of the foregoing and will take the necessary steps to
inform the individuals or entities referred to in the first sentence hereof of
the obligations undertaken in this Section 7.1; and (c) that the Corporation
will notify Buyer immediately if any such inquiry or proposal is received by,
any such information is requested from, or any such negotiations or discussions
are sought to be initiated or continued with, the Corporation; provided,
however, that nothing contained in
 
                                      A-14
<PAGE>
 
this Section 7.1 shall prohibit the Board of Directors of the Corporation from
(i) furnishing information to or entering into discussions or negotiations
with, any person or entity that makes an unsolicited proposal to acquire the
Corporation pursuant to a merger, consolidation, share exchange, purchase of a
substantial portion of the assets, business combination or other similar
transaction, if, and only to the extent that, (A) the Board of Directors, after
consultation with and consideration of the written advice of independent legal
counsel, determines in good faith that such action is required for the Board of
Directors to comply with the Corporation's fiduciary duties to stockholders
imposed by applicable law, (B) prior to furnishing such information to, or
entering into discussions or negotiations with, such person or entity, the
Corporation provides written notice to Buyer to the effect that the Corporation
is furnishing information to, or entering into discussions or negotiations
with, such person or entity, and (C) the Corporation keeps Buyer informed, on a
current basis, of the status of any such discussions or negotiations (but the
Corporation need not inform Buyer of the substance of such discussions or
negotiations); and (ii) complying with Rule 14e-2 promulgated under the
Exchange Act with regard to an Acquisition Proposal. The Corporation will use
reasonable efforts to cause a person provided proprietary information in
accordance with the foregoing to enter into a confidentiality agreement.
 
  7.2. Interim Operations of the Corporation. The Corporation covenants and
agrees as to itself and the Corporation Subsidiaries that, from and after the
date hereof until the Effective Time (except as Buyer shall otherwise agree or
except as otherwise contemplated by this Agreement or the Stock Option
Agreement):
 
    (i) To the extent reasonably practicable taking into account any
  operational matters that may arise that are attributable to the pendency of
  the Merger, the business of the Corporation and the Corporation
  Subsidiaries shall be conducted only in the ordinary course and, to the
  extent consistent therewith, the Corporation and the Corporation
  Subsidiaries shall use their commercially reasonable efforts to preserve
  their business organization intact and maintain their existing relations
  with customers and suppliers.
 
    (ii) The Corporation shall not (a) sell, pledge or otherwise transfer, or
  agree to sell, pledge or otherwise transfer any stock owned by it in any of
  its subsidiaries; (b) amend its Articles of Incorporation or Bylaws; (c)
  split, combine or reclassify any outstanding capital stock; (d) declare,
  set aside or pay any dividend payable in cash, stock or property with
  respect to any of its capital stock; or (e) repurchase, redeem or otherwise
  acquire, or permit any Corporation Subsidiary to purchase or otherwise
  acquire, directly or indirectly, any shares of its capital stock or any
  securities convertible into or exercisable for any shares of its capital
  stock.
 
    (iii) Neither the Corporation nor any of the Corporation Subsidiaries
  shall (a) issue, sell, pledge, dispose of or encumber, or authorize or
  propose the issuance, sale, pledge, disposition or encumbrance of, any
  shares of, or securities convertible or exchangeable for, or options,
  warrants, calls, commitments or rights of any kind to acquire, any shares
  of its capital stock of any class or Voting Debt other than Shares issuable
  pursuant to options outstanding on the date hereof under the Corporation
  Stock Option Plans, the Warrants and the Stock Option Agreement; (b)
  transfer, lease, license, guarantee, sell, mortgage, pledge, dispose of any
  other property or assets or encumber any property or assets or incur or
  modify any indebtedness or other liability other than in the ordinary
  course of business; (c) authorize capital expenditures other than in the
  ordinary course of business; (d) make any acquisitions of, or investment
  in, the assets of or stock of any other person or entity; or (e) make any
  payment to third parties for goods or services which are not commercially
  reasonable or on an arm's length basis.
 
    (iv) Neither the Corporation nor any of the Corporation Subsidiaries
  shall grant any bonus or pay increase or any severance or termination pay
  to, or enter into any Employment Agreement with, any director, officers or
  other employee of the Corporation or any of the Corporation Subsidiaries,
  except as (x) may be required to satisfy existing contractual obligations
  of the Corporation and the Corporation Subsidiaries as of the date hereof
  which are set forth in the Corporation Disclosure Letter or (y) required by
  applicable law.
 
    (v) Except as set forth in the Corporate Disclosure Letter or as may be
  required to satisfy existing contractual obligations of the Corporation and
  the Corporation Subsidiaries existing as of the date hereof
 
                                      A-15
<PAGE>
 
  and the requirements of applicable law, neither the Corporation nor any of
  the Corporation Subsidiaries shall establish, adopt, enter into, make or
  amend any collective bargaining, bonus, profit sharing, thrift,
  compensation, stock option, restricted stock, pension, retirement, employee
  stock ownership, deferred compensation, employment, termination, severance
  or other plan, trust, fund, policy or arrangement for the benefit of any
  class of directors, officers or employees or make, or accelerate the
  vesting of, any grants, awards, benefits or options under any such plans.
 
    (vi) Neither the Corporation nor any of the Corporation Subsidiaries
  shall, except in the ordinary and usual course of business and on
  commercially reasonable terms, modify, amend or terminate any of its
  Contracts or waive, release or assign any rights or claims.
 
    (vii) The Corporation shall not change its method of accounting as in
  effect at June 30, 1994, except as required by changes in generally
  accepted accounting principles as concurred to by the Corporation's
  independent auditors. The Corporation will not change its fiscal year.
 
    (viii) The Corporation shall not take or cause to be taken any action
  which would disqualify the Merger as a "reorganization" within the meaning
  of Section 368(a) of the Code; provided, however, that nothing hereunder
  shall limit the ability of the Corporation to exercise any of its rights or
  perform any of its obligations under the Stock Option Agreement.
 
    (ix) Neither the Corporation nor any of the Corporation Subsidiaries will
  authorize or enter into an agreement to do any of the actions referred to
  in paragraphs (i) through (ix) above unless such agreement is conditioned
  upon the consent of Buyer.
 
  To the extent that the Corporation seeks approval to take any of the actions
referred to in paragraphs (i) through (ix) above, such approval shall not be
unreasonably withheld, giving effect however, to Buyer's operational objectives
with respect to the Merger.
 
  7.3. Interim Operations of Buyer. Buyer does not anticipate that the business
of Buyer and the Buyer Subsidiaries will be conducted in any manner materially
inconsistent with its business in the ordinary and usual course, including the
acquisition from time to time of the assets or stock of other businesses.
 
  7.4. Meeting of Shareholders. The Corporation will take all action necessary
in accordance with applicable law and its Articles of Incorporation and Bylaws
to convene a meeting of its shareholders as promptly as practicable to consider
and vote upon the approval of the Merger. The Board of Directors of the
Corporation shall, except to the extent such Board of Directors determines in
good faith is required by fiduciary obligations under applicable law, recommend
such approval and the Corporation shall each take all lawful action to solicit
such approval. At any such meeting all of the Shares, if any, then owned by
Buyer (or as to which Buyer shall have received a proxy) will be voted in favor
of the Merger.
 
  7.5. Filings; Other Action. Subject to the terms and conditions herein
provided, the Corporation and Buyer shall: (a) promptly make their respective
filings and thereafter make any other required submissions under the HSR Act
with respect to the Merger; and (b) use all reasonable efforts to cooperate
with one another in (i) determining which filings are required to be made prior
to the Effective Time with, and which consents, approvals, permits or
authorizations are required to be obtained prior to the Effective Time from,
governmental or regulatory authorities of the United States, the several States
and foreign jurisdictions in connection with the execution and delivery of this
Agreement, the Stock Option Agreement and the consummation of the transactions
contemplated hereby and thereby and (ii) timely making all such filings and
timely seeking all such consents, approvals, permits or authorizations; and (c)
use all reasonable efforts to take, or cause to be taken, all other action and
do, or cause to be done, all other things, necessary, proper or appropriate to
consummate and make effective the transactions contemplated by this Agreement.
In case at any time after the Effective Time any further action is necessary or
desirable to carry out the purpose of this Agreement or the Stock Option
Agreement, the proper officers and/or directors of Buyer, Merger Sub and the
Corporation shall take all such necessary action.
 
 
                                      A-16
<PAGE>
 
  7.6. Access. Each of the Corporation and Buyer shall afford the other and
their respective officers, employees, counsel, accountants and other authorized
representatives reasonable access, upon reasonable notice and during normal
business hours throughout the period prior to the Effective Time, to all of the
properties, books, contracts, commitments and records of the Corporation and
the Corporation Subsidiaries, on the one hand, and Buyer, on the other hand,
and, during such period, each of the Corporation and Buyer shall furnish
promptly to Buyer and the Corporation, as the case may be, a copy of each
report, schedule and other document filed or received by it pursuant to this
Section 7.6.
 
  7.7. Publicity. The initial press release shall be a joint press release and
thereafter the Corporation and Buyer shall consult with each other in issuing
any press releases or otherwise making public statements with respect to the
transactions contemplated hereby and in making any filings with any federal or
state governmental or regulatory agency or with any national securities
exchange with respect thereto.
 
  7.8. Registration Statement. Buyer and the Corporation shall cooperate and
promptly prepare and file with the SEC as soon as practicable a Registration
Statement on Form S-4 ("S-4") under the Securities Act, with respect to Buyer
Common Stock issuable in the Merger, a portion of which Registration Statement
shall also serve as the proxy statement with respect to the meeting of the
shareholders of the Corporation to approve the Merger (the "Proxy
Statement/Prospectus"). The respective parties will use all reasonable efforts
to cause the Proxy Statement/Prospectus and the S-4 to comply as to form in all
material respects with the provisions of the Exchange Act and the rules and
regulations thereunder, and to cause the S-4 to comply as to form in all
material respect with the provisions of the Securities Act and the rules and
regulations thereunder. Buyer shall use all reasonable efforts, and the
Corporation will cooperate with Buyer, to have the S-4 declared effective by
the SEC as promptly as practicable. Buyer shall use its reasonable efforts to
obtain, prior to the effective date of the Proxy Statement/Prospectus, all
necessary state securities law or "Blue Sky" permits or approvals required to
carry out the transactions contemplated by this Agreement and will pay all
expenses incident thereto. Buyer agrees that the S-4, when declared effective
by the SEC, will not include an untrue statement of a material fact or omit to
state a material fact required to be stated therein or necessary to make the
statements therein, in light of the circumstances under which they were made,
not misleading; provided, however, that the foregoing shall not apply to the
extent that any such untrue statement of a material fact or omission to state a
material fact was made by Buyer in reliance upon and in conformity with written
information concerning the Corporation furnished to Buyer by the Corporation.
The Corporation agrees that the information provided by it for inclusion in the
Proxy Statement/Prospectus, when the Proxy Statement/Prospectus is mailed to
Buyer's stockholders, will not include an untrue statement of a material fact
or omit to state a material fact required to be stated therein or necessary to
make the statements therein, in light of the circumstances under which they
were made, not misleading. No amendment or supplement to the Proxy
Statement/Prospectus will be made by Buyer until it has consulted with the
Corporation and its counsel. Buyer will advise the Corporation, promptly after
it receives notice thereof, of the time when the S-4 has become effective or
any supplement or amendment has been filed, of the issuance of any stop order,
or the suspension of the qualification of Buyer Common Stock issuable in
connection with the Merger for offering or sale in any jurisdiction or any
request by the SEC for amendment of the Proxy Statement/Prospectus or the S-4
or comments thereon and responses thereto or requests for additional
information. The Corporation represents that it meets the Registrant
Requirements of Part I.A. of the General Instructions of Form S-3 promulgated
under the Securities Act.
 
  7.9. Listing Application. Buyer shall prepare and submit to the NYSE a
listing application covering Buyer Common Stock to be issued in connection with
the Merger and shall use its reasonable efforts to obtain, prior to the
Effective Time, approval for the listing of such Buyer Common Stock upon
official notice of issuance.
 
  7.10. Further Action. Each party hereto shall, subject to the fulfillment at
or before the Effective Time of each of the conditions of performance set forth
herein or the waiver thereof, perform such further acts and execute such
documents as may be reasonably required to effectuate the Merger.
 
 
                                      A-17
<PAGE>
 
  7.11. Notification of Certain Matters. The Corporation shall give prompt
notice to Buyer of: (a) any notice of, or other communication which becomes
known to an executive officer of the Corporation relating to, a default or
event that, with notice or lapse of time or both, would become a default,
received by the Corporation, or any of the Corporation Subsidiaries, subsequent
to the date of this Agreement and prior to the Effective Time, under any
Contract material to the businesses of the Corporation and to which the
Corporation or one of the Corporation Subsidiaries is a party or is subject;
and (b) any change that results in a material adverse effect on such party. The
Corporation shall give prompt notice to Buyer of any notice or other
communication from any third party that becomes known to an executive officer
of the Corporation alleging that the consent of such third party is or may be
required in connection with the transactions contemplated by this Agreement.
 
  7.12. Legal Conditions to Merger. Each party shall, and shall cause each of
its subsidiaries to, use its reasonable efforts to take, or cause to be taken,
all actions necessary to comply promptly with all legal requirements which may
be imposed on such party or its subsidiaries with respect to the Merger and,
subject to the terms and conditions set forth in this Agreement, to consummate
the transactions contemplated by this Agreement, the Stock Option Agreement,
the Escrow Agreement and the Stockholder Agreements; provided, however, that
nothing in this Agreement shall limit the ability of Buyer or the Corporation
to exercise any of its rights or perform any of its obligations under the Stock
Option Agreement, the Escrow Agreement, the Stockholder Agreements or Section
9(b) of this Agreement. Each party will promptly cooperate with and furnish
information to each other party in connection with any such restriction
suffered by, or requirement imposed upon, it or any of its subsidiaries in
connection with the foregoing.
 
  7.13. Agreements by Affiliated Shareholders of the Corporation and Buyer.
 
    (i) At least ten days prior to the date of the meeting of the
  Corporation's shareholders contemplated by Section 7.4, the Corporation
  shall deliver to Buyer a list of names and addresses of those persons who
  were, in the Corporation's reasonable judgment, at the record date for such
  meeting, "affiliates" of the Corporation within the meaning of Rule 145
  (each such person, together with the persons identified below, an
  "Affiliate") of the rules and regulations promulgated under the Securities
  Act ("Rule 145"). The Corporation shall provide Buyer such information and
  documents as Buyer shall reasonably request for purposes of reviewing such
  list. There shall be added to such list the names and addresses of any
  other person (within the meaning of Rule 145) which Buyer reasonably
  identifies (by written notice to the Corporation within five business days
  after Buyer's receipt of such list) as being a person who may be deemed to
  be an Affiliate of the Corporation within the meaning of Rule 145;
  provided, however, that no such person identified by Buyer shall be added
  to the list of Affiliates of the Corporation if Buyer shall receive from
  the Corporation, on or before the Effective Time, an opinion of counsel
  reasonably satisfactory to Buyer to the effect that such person is not an
  Affiliate. The Corporation shall use all reasonable efforts to deliver or
  cause to be delivered to Buyer, prior to the Effective Time, from each of
  the Affiliates of the Corporation identified in the foregoing list (as the
  same may be supplemented as aforesaid), Affiliates Letters in the form
  attached hereto as Exhibit 7.13(i). Buyer and Merger Sub shall be entitled
  to place legends as specified in such Affiliates Letters on the certificate
  evidencing any Buyer Common Stock to be received by such Affiliates
  pursuant to the terms of this Agreement, and to issue appropriate stop
  transfer instructions to the transfer agent for Buyer Common Stock,
  consistent with the terms of such Agreements.
 
    (ii) At the Closing, Buyer will enter into with each of the Affiliates of
  the Corporation a Registration Rights Agreement in the form attached hereto
  as Exhibit 7.13(ii).
 
  7.14. Employee Benefits.
 
    (i) Buyer hereby agrees to cause the Surviving Corporation to pay, in
  accordance with their terms as in effect on the date hereof, all amounts
  due and payable under the terms of all written employment, severance and
  termination contracts, agreements, plans, policies and commitments of the
  Corporation and its subsidiaries with or with respect to its current or
  former employees, officers and directors as set
 
                                      A-18
<PAGE>
 
  forth in the Corporation Disclosure Letter (the "Employee Agreements"),
  which amounts are vested on or prior to the date of this Agreement or which
  become vested as a result of the transactions contemplated hereby and will
  cause the Surviving Corporation to assume and continue to honor the terms
  of such Employee Agreements.
 
    (ii) Buyer hereby acknowledges that the consummation of the Merger will
  constitute a "friendly" change of control of the Corporation (to the extent
  relevant) for all Benefit Plans, Employee Agreements, Corporation Stock
  Option Plans and other compensation arrangements of the Corporation.
 
  7.15. Expenses. Whether or not the Merger is consummated, all costs and
expenses incurred in connection with this Agreement and the transactions
contemplated hereby shall be paid by the party incurring such expense except as
expressly provided herein.
 
  7.16. Documentation; Registration. Promptly following the Effective Time of
the Merger, Buyer shall file a Registration Statement covering the shares of
Buyer Common Stock issuable upon the exercise of the assumed Corporation
Options. Buyer will use its reasonable efforts to cause such shares to be
registered under the Securities Act and to maintain such registration in effect
until the exercise or termination of all such Corporation Options.
 
  7.17. Director and Officer Indemnification. Buyer agrees that all rights to
indemnification and advancement of expenses existing in favor of the current
and former directors and officers of the Corporation (the "Indemnified
Parties") under the provisions existing on the date hereof of the Articles of
Incorporation, By-Laws and indemnification agreements of the Corporation shall
survive the Effective Date for at least six years thereafter and Buyer agrees
to indemnify and advance expenses to the Indemnified Parties to the full extent
as would be required or permitted by the Corporation under the provisions
existing on the date hereof of the Articles of Incorporation, Bylaws and
indemnification agreements of the Corporation. Until the third anniversary of
the Effective Time, Buyer shall cause the Surviving Corporation to maintain in
effect with respect to matters occurring prior to the Effective Time, to the
extent available, the policies of directors' and officers' liability insurance
currently maintained by the Corporation; provided that the Surviving
Corporation may substitute therefor policies containing coverage, terms and
conditions which are no less advantageous; provided that in no event shall
Buyer or the Surviving Corporation be required to expend more than $500,000 in
the aggregate to maintain or procure insurance coverage pursuant hereto and
further provided that if Buyer or the Surviving Corporation is unable to obtain
the insurance called for by this Section, Buyer or the Surviving Corporation
will obtain as much comparable insurance as is available for an aggregate
expenditure of $500,000.
 
  7.18. Indemnification.
 
    (i) Notwithstanding any other provisions of this Agreement, subject to
  the provisions of this Section 7.18 and limited in all cases to the
  Escrowed Shares and the terms of the Escrow Agreement, the Corporation
  shall indemnify and hold harmless Buyer and Merger Sub, and their
  respective parent and subsidiary corporations, heirs, assigns, successors,
  directors, officers, employees, agents, attorneys, administrators,
  beneficiaries and executors (each an "Escrow Indemnified Party" and
  collectively, the "Escrow Indemnified Parties"), from and against all
  losses, claims, counterclaims, obligations, demands, causes of action,
  choses in action, suits, assessments, common law and statutory penalties,
  liabilities, costs, damages, punitive and exemplary damages, judgments,
  interest and expenses (including without limitation amounts paid in
  settlement and fees and disbursements of counsel and expenses incurred in
  connection with investigating, preparing for, pursuing or defending any
  pending or threatened litigation, action, claim, proceeding, dispute or
  investigation (an "Action")) (collectively, "Damages") asserted against or
  incurred by the Corporation or such Escrow Indemnified Parties from or
  after the date of this Agreement by reason of or arising from any Action
  now pending or threatened against the Corporation or that may arise
  following the date hereof involving the Corporation or the Escrow
  Indemnified Parties, and relating to the nature of or business and affairs
  of the Corporation, this Agreement or the transactions contemplated hereby.
  Notwithstanding the foregoing, such indemnification shall include without
  limitation any Action arising out of violations or alleged violations of
  securities laws and any Actions brought by the current and former directors
  and officers of the Corporation to enforce their
 
                                      A-19
<PAGE>
 
  rights under Section 7.17 of this Agreement against the Corporation or an
  Escrow Indemnified Party but such indemnification shall exclude any Actions
  arising out of ordinary course of business transactions, other Actions
  brought by current or former employees with respect to their employment or
  termination thereof and those Actions set forth in Section 5.8 of the
  Corporation Disclosure Letter; provided, however, the Corporation or such
  Escrow Indemnified Parties shall be indemnified for Damages arising with
  respect to those items set forth in Item IV of Section 5.8 of the
  Corporation Disclosure Letter. Notwithstanding the provisions of this
  Section 7.18, the Escrow Indemnified Parties' rights hereunder shall not
  limit in any respect any rights the Corporation or any Escrow Indemnified
  Party may have against third persons with respect to any Action, including
  without limitation rights under insurance policies and contractual rights
  as an indemnitee. Neither the Corporation, Buyer nor any other Escrow
  Indemnified Party shall have any duty or obligation to pursue any rights
  against third persons as a precondition to the indemnification provided for
  in this Section 7.18.
 
    (ii) Notwithstanding the provisions of Section 7.18(i), Buyer shall not
  be entitled to deliver notice of indemnification for Damages pursuant to
  Section 7.18(i) after the second anniversary of the Effective Time except
  to the extent provided in the Escrow Agreement.
 
                                   ARTICLE 8
 
  8. Conditions.
 
  8.1. Conditions to Each Party's Obligation to Effect the Merger. The
respective obligation of each party to effect the Merger shall be subject to
the fulfillment in all material respects at or prior to the Effective Time of
the following conditions:
 
    (i) The Merger shall have been approved in the manner required by law by
  the holders of the issued and outstanding shares of the Corporation's
  capital stock entitled to vote thereon.
 
    (ii) The waiting period applicable to the consummation of the Merger
  under the HSR Act shall have expired or been terminated.
 
    (iii) None of the parties hereto shall be subject to any order or
  injunction against the consummation of the transaction contemplated by this
  Agreement. In the event any such order or injunction shall have been
  issued, each party agrees to use its reasonable efforts to have any such
  injunction lifted.
 
    (iv) The Registration Statement contemplated by Section 7.8 shall have
  become effective and no stop order with respect thereto shall be in effect.
 
    (v) The Corporation, Buyer and the Escrow Agent shall have executed and
  delivered the Escrow Agreement.
 
  8.2. Conditions to Obligation of the Corporation to Effect the Merger. The
obligation of the Corporation to effect the Merger shall be subject to the
fulfillment in all material respects at or prior to the Effective Time of the
following conditions: Buyer and Merger Sub shall have performed each agreement
contained in this Agreement required to be performed on or prior to the
Effective Time and the representations and warranties of Buyer contained in
this Agreement shall be true in all material respects on and as of the
Effective Time (other than any failure to so perform or any misrepresentation
or omission which would not materially influence the investment decision of a
reasonable purchaser of securities); and the Corporation shall have received a
certificate of the President or a Vice President of Buyer, certifying to such
effect.
 
  8.3. Conditions to Obligation of Buyer and Merger Sub to Effect the
Merger. The obligation of Buyer and Merger Sub to effect the Merger shall be
subject to the fulfillment in all material respects at or prior to the
Effective Time of the following conditions:
 
    (i) The Corporation shall have performed its agreements contained in this
  Agreement required to be performed on or prior to the Effective Time and
  the representations and warranties of the Corporation contained in this
  Agreement shall be true in all material respects on and as of the Effective
  Time (other than any failure to so perform or any misrepresentation or
  omission which would not materially influence the investment decision of a
  reasonable purchaser of securities); and Buyer shall have received a
  certificate of the President or a Vice President of the Corporation
  certifying to such effect.
 
                                      A-20
<PAGE>
 
    (ii) If Buyer intends to have the Merger qualify for Federal income tax
  purposes as a reorganization within the meaning of Section 368 of the Code,
  in its sole discretion, Buyer shall have received the opinion of Jackson &
  Walker, L.L.P., counsel to Buyer, and the Corporation shall have received
  the opinion of counsel to the Corporation, each dated the Closing Date, to
  the effect that the Merger will be treated for Federal income tax purposes
  as a reorganization within the meaning of Section 368(a) of the Code, and
  that Buyer, Merger Sub and the Corporation will each be a party to that
  reorganization within the meaning of Section 368(b) of the Code.
 
                                   ARTICLE 9
 
  9. Termination.
 
  9.1. Termination by Mutual Consent. This Agreement may be terminated and may
be abandoned at any time prior to the Effective Time, before or after the
approval of this Agreement by the shareholders of the Corporation, by the
mutual consent of Buyer, Merger Sub and the Corporation.
 
  9.2. Termination by Either Buyer or the Corporation. This Agreement may be
terminated and the Merger may be abandoned by action of the Board of Directors
of either Buyer or the Corporation if (i) the Merger shall not have been
consummated by January 31, 1995, or (ii) the approval of the Corporation's
stockholders required by Section 8.1(i) shall not have been obtained at a
meeting duly convened therefor or at any adjournment thereof, provided, in the
case of a termination pursuant to clause (i) above, the terminating party shall
not have breached in any material respect its obligations under this Agreement
in any manner that shall have proximately contributed to the occurrence of the
failure referred to in said clause.
 
  9.3. Termination by the Corporation. This Agreement may be terminated and the
Merger may be abandoned at any time prior to the Effective Time, before or
after the adoption and approval by stockholders of the Corporation referred to
in Section 8.1(i), by action of the Board of Directors of the Corporation, if
(i) the Board of Directors of Buyer shall have withdrawn or modified in a
manner adverse to the Corporation its approval or recommendation of this
Agreement or the Merger, (ii) the average closing price for Buyer Common Stock
on the NYSE Composite Tape for five consecutive business days shall be $22.00
or less, or (iii) there has been a breach by Buyer or Merger Sub of any
representation, warranty, covenant or agreement contained in this Agreement or
the Stock Option Agreement which would have a material adverse effect on Buyer
which is not curable or, if curable, is not cured within 30 days after written
notice of such breach is given by the Corporation to the party committing such
breach.
 
  9.4. Termination by Buyer. This Agreement may be terminated and the Merger
may be abandoned at any time prior to the Effective Time, by action of the
Board of Directors of Buyer, if (i) the Board of Directors of the Corporation
shall have withdrawn or modified in a manner adverse to Buyer its approval or
recommendation of the Merger, or shall have recommended to stockholders of the
Corporation an Acquisition Proposal, (ii) any person shall have made an
Acquisition Proposal for the Corporation and the conditions specified in
Sections 8.1(iii) or 8.3(i) cannot be or are not satisfied on or prior to
January 31, 1995 or (iii) there has been a breach by the Corporation of any
representation, warranty, covenant or agreement contained in this Agreement or
the Stock Option Agreement which would have a material adverse effect on the
Corporation which is not curable or, if curable, is not cured within 30 days
after written notice of such breach is given by Buyer to the Corporation.
 
  9.5. Effect of Termination and Abandonment. (a) In the event of termination
of this Agreement and the abandonment of the Merger pursuant to this Article 9,
no party hereto (or any of its directors or officers) shall have any liability
or further obligation to any other party to this Agreement except as provided
in Section 9.5(b), Section 7.15 (subject to Section 9.5(b)) and Section 10.6
below, other than the Confidentiality Agreement and except that nothing herein
will relieve any party from liability for any breach of this Agreement.
 
                                      A-21
<PAGE>
 
  (b) In the event that any person shall have made an Acquisition Proposal for
the Corporation and thereafter the Agreement is terminated by either party
(other than pursuant to the breach of this Agreement by Buyer), then the
Corporation, if requested by Buyer, shall, subject to the provisions set forth
below, promptly, but in no event later than two days after the date of such
request, pay Buyer a fee of $2,900,000, which amount shall be payable by wire
transfer of same day funds; provided however, that no fee shall be payable to
Buyer pursuant to this Section 9.5(b) unless and until (i) any person (other
than Buyer) (an "Acquiring Party") has entered into a definitive agreement to
acquire, by purchase, merger, consolidation, sale, assignment, lease, transfer
or otherwise, in a transaction or a series of transactions, a majority of the
voting power of the outstanding securities of the Corporation or 50% or more of
the assets of the Corporation, (ii) there has been executed a definitive
agreement with respect to a consolidation, merger or similar transaction
between the Corporation and an Acquiring Party in which the stockholders of the
Corporation immediately prior to such proposed consolidation, merger or similar
transaction do not own securities representing at least 50% of the outstanding
voting power of the surviving entity (or, if applicable, any entity in control
of such Acquiring Party) of such proposed consolidation, merger or similar
transaction immediately following the consummation thereof, or (iii) an
Acquiring Party, or any "group" (as such term is defined under Section 13(d) of
the Exchange Act) acquires beneficial ownership or the right to acquire
beneficial ownership of 50% of the common stock of the Corporation, whether by
tender offer, exchange offer or otherwise (any such transaction described in
clauses (i) through (iii) being a "Business Combination"). The Corporation
acknowledges that the agreements contained in this Section 9.5(b) are an
integral part of the transactions contemplated in this Agreement, and that,
without these agreements, Buyer and Merger Sub would not enter into this
Agreement; accordingly, if the Corporation fails to promptly pay the amount due
pursuant to this Section 9.5(b), and, in order to obtain such payment, Buyer or
Merger Sub commences a suit which results in a judgment against the Corporation
for the fee set forth in this paragraph (b), the non-prevailing party shall pay
to the prevailing party its costs and expenses (including attorneys' fees) in
connection with such suit, together with interest on the amount of the fee at
the prime rate of Bank of Boston, N.A. in effect on the date such payment was
required to be made.
 
  9.6. Extension; Waiver. At any time prior to the Effective Time of the
Merger, any party hereto, by action taken by its Board of Directors, may, to
the extent legally allowed, (i) extend the time for the performance of any of
the obligations or other acts of the other parties hereto, (ii) waive any
inaccuracies in the representations and warranties made to such party contained
herein or in any document delivered pursuant hereto and (iii) waive compliance
with any of the agreements or conditions for the benefit of such party
contained herein. Any agreement on the part of a party hereto to any such
extension or waiver shall be valid only if set forth in an instrument in
writing signed on behalf of such party.
 
                                   ARTICLE 10
 
  10. General Provisions.
 
  10.1. Nonsurvival of Representations, Warranties and Agreements. All
representations, warranties and agreements in this Agreement or in any
instrument delivered pursuant to this Agreement shall be deemed to the extent
expressly provided herein to be conditions to the Merger and shall not survive
the Merger, provided, however, that the agreements contained in Article 4 and
in Sections 7.12, 7.14, 7.15, 7.16, 7.17, 7.18 and 10.6 and the Agreements
delivered pursuant to this Agreement shall survive this Agreement.
 
  10.2. Notices. Any notice required to be given hereunder shall be in writing
and given by facsimile transmission, overnight courier service, hand delivery
or certified or registered mail (return receipt requested and first-class
postage prepaid), addressed as follows:
 
                                      A-22
<PAGE>
 
  If to the Corporation:
 
               KnowledgeWare, Inc.
               3340 Peachtree Road, N.E.
               Suite No. 1100
               Atlanta, Georgia 30326
               Attention: Francis A. Tarkenton, Chairman of the Board
               FAX: (404) 364-0883
 
Copy to:       Hicks, Maloof & Campbell
               Suite 2200, Marquis Two Tower
               285 Peachtree Center Avenue, N.E.
               Atlanta, Georgia 30303
               Attention: Maurice N. Maloof
               FAX: (404) 420-7474
 
If to Buyer or Merger Sub:
 
               8080 N. Central Expressway
               Dallas, Texas 75206
               Attention: Sterling L. Williams, President
               FAX: (214) 750-0905
 
Copy to:       8080 N. Central Expressway
               Dallas, Texas 75206
               Attention: Jeannette P. Meier, Executive Vice President 
                          and General Counsel
               FAX: (214) 750-0905
 
Copy to:       Jackson & Walker, L.L.P.
               901 Main Street, Suite 6000
               Dallas, Texas 75202
               Attention: Charles D. Maguire, Jr.
               FAX: (214) 953-5822
 
or to such other address as any party shall specify by written notice so given.
Such notice shall be deemed given and received on the date it is delivered if
given by telecopy, overnight courier or hand-delivery or on the fifth business
day following the date it is so mailed.
 
  10.3. Binding Effect; Benefit. This Agreement shall be binding upon and shall
inure to the benefit of the parties hereto and their respective successors and
assigns. Notwithstanding anything contained in this Agreement to the contrary,
except for the provisions of Article 4 and Sections 7.12, 7.14, 7.15, 7.16,
7.17, 7.18 and 10.6 nothing in this Agreement, expressed or implied, is
intended to confer on any person other than the parties hereto or their
respective heirs, successors, executors, administrators and assigns any rights,
remedies, obligations or liabilities under or by reason of this Agreement.
 
  10.4. Entire Agreement. This Agreement, the Stock Option Agreement, the
Escrow Agreement, the Confidentiality Agreement, the Exhibits, Disclosure
Letters and other documents and agreements among the parties hereto, constitute
the entire agreement among the parties with respect to the subject matter
hereof and supersede all prior agreements and understandings, among the parties
with respect thereto, including without limitation any oral or written
understandings or commitments with respect to loans, advances or guaranties
from or by Buyer or severance or other employment arrangements with respect to
employees of the Corporation. No addition to or modification of any provision
of this Agreement shall be binding upon any party hereto unless made in writing
and signed by all parties hereto.
 
                                      A-23
<PAGE>
 
  10.5. Amendment. This Agreement may be amended by the parties hereto, by
action taken by their respective Board of Directors, at any time before or
after approval of matters presented in connection with the Merger by the
stockholders of the Corporation but after any such stockholder approval, no
amendment shall be made which by law requires the further approval of
stockholders without obtaining such further approval. This Agreement may not be
amended except by an instrument in writing signed on behalf of each of the
parties hereto.
 
  10.6. Governing Law. This Agreement shall be governed by and construed in
accordance with the laws of the State of Delaware without regard to its rules
of conflict of laws; provided, however, the Merger of Merger Sub into the
Corporation shall be governed by the laws of the State of Georgia.
 
  10.7. Counterparts. This Agreement may be executed by the parties hereto in
separate counterparts, each of which when so executed and delivered shall be an
original, but all such counterparts shall together constitute one and the same
instrument. Each counterpart may consist of a number of copies hereof each
signed by less than all, but together signed by all of the parties hereto.
 
  10.8. Headings. Headings of the Articles and Sections of this Agreement are
for the convenience of the parties only, and shall be given no substantive or
interpretive effect whatsoever.
 
  10.9. Interpretation. In this Agreement, unless the context otherwise
requires, words describing the singular number shall include the plural and
vice versa, and words denoting any gender shall include all genders and words
denoting natural persons shall include corporations and partnerships and vice
versa.
 
  10.10. Waivers. Except as provided in this Agreement, no action taken
pursuant to this Agreement, including, without limitation, any investigation by
or on behalf of any party, shall be deemed to constitute a waiver by the party
taking such action of compliance with any representations, warranties,
covenants or agreements contained in this Agreement. The waiver by any party
hereto of a breach of any provision hereunder shall not operate or be construed
as a waiver of any prior or subsequent breach of the same or any other
provision hereunder.
 
  10.11. Incorporation of Exhibits and Disclosure Letters. All Exhibits and
Disclosure Letters attached hereto and referred to herein are hereby
incorporated herein and made a part hereof for all purposes as if fully set
forth herein.
 
  10.12. Severability. If for any reason whatsoever, any one or more of the
provisions of this Agreement shall be held or deemed to be inoperative,
unenforceable or invalid as applied to any particular case or in all cases,
such circumstances shall not have the effect of rendering such provision
invalid in any other case or of rendering any of the other provisions of this
Agreement inoperative, unenforceable or invalid.
 
  10.13. Obligation of Buyer. Buyer shall cause Merger Sub to perform each of
its duties and obligations under this Agreement.
 
                                      A-24
<PAGE>
 
  IN WITNESS WHEREOF, the parties have executed this Agreement and caused the
same to be duly delivered on their behalf on the day and year first hereinabove
written.
 
                                          THE CORPORATION:
 
                                          KNOWLEDGEWARE, INC., a Georgia
                                           corporation
 
                                                 
                                          By:    /s/ Francis A. Tarkenton
                                             ----------------------------------
                                                   Francis A. Tarkenton,
                                                Chairman of the Board and 
                                                 Chief Executive Officer
 
                                          BUYER:
 
                                          STERLING SOFTWARE, INC., a Delaware
                                           corporation
 
                                                 
                                          By:    /s/ Sterling L. Williams
                                             ----------------------------------
                                                   Sterling L. Williams,
                                                         President
 
                                          MERGER SUB:
 
                                          SSI CORPORATION, a Georgia corporation
 
                                                 
                                          By:    /s/ Sterling L. Williams
                                             ----------------------------------
                                                   Sterling L. Williams,
                                                         President
 
                                      A-25
<PAGE>
 
                                  EXHIBIT 2.1
 
  (i) Paragraph (b) of Article 4 of the Corporation's Restated Articles of
Incorporation shall be amended and restated to read in its entirety as follows:
 
    "(b) The total number of shares of stock which the Corporation shall have
  authority to issue is Eleven Thousand (11,000) shares, consisting of Ten
  Thousand (10,000) shares of Common Stock, having a par value of $.10 per
  share, and One Thousand (1,000) shares of Preferred Stock, having a par
  value of $.10 per share."
 
  (ii) Article 8 of the Corporation's Restated Articles of Incorporation shall
be deleted in their entirety, and all subsequent Articles (except as provided
herein) and cross-references thereto shall be deemed renumbered accordingly.
 
  (iii) Article 9 of the Corporation's Restated Articles of Incorporation (to
be renumbered Article 7 pursuant to the amendments to be effected hereby) shall
be amended and restated to read in its entirety as follows:
 
                                       "7
 
    The number of directors of the Corporation shall be determined in
  accordance with the Bylaws of the Corporation."
 
                                      A-26
<PAGE>
 
                                  EXHIBIT 4.4
 
                                ESCROW AGREEMENT
 
  This Escrow Agreement ("Agreement"), dated as of      , 1994, among Sterling
Software, Inc., a Delaware corporation ("Sterling"), KnowledgeWare, Inc., a
Georgia corporation ("KnowledgeWare"), The First National Bank of Boston (the
"Agent") and       as representative (the "Representative"),
 
                              W I T N E S S E T H:
 
  WHEREAS, Sterling, SSI Corporation, a Georgia corporation and wholly owned
subsidiary of Sterling ("Newco"), and KnowledgeWare are parties to that certain
Amended and Restated Agreement and Plan of Merger dated as of August 31, 1994
to be effective as of July 31, 1994 (as amended, the "Merger Agreement")
pursuant to which Newco will merge with and into KnowledgeWare; and
 
  WHEREAS, pursuant to the Merger Agreement, Sterling is entitled to
indemnification under certain circumstances as set forth in the Merger
Agreement; and
 
  WHEREAS, the purpose of this Agreement is to provide for the deposit of
shares of common stock, par value $0.10 per share, of Sterling ("Buyer Common
Stock") pursuant to the Merger Agreement to satisfy the rights of Sterling to
be indemnified under Section 7.18 of the Merger Agreement and to provide for
the distribution, if applicable, of any shares of Buyer Common Stock to persons
who as of the Effective Time (as defined in the Merger Agreement) were holders
of record ("Record Holders") of issued and outstanding Shares (as defined in
the Merger Agreement);
 
  NOW, THEREFORE, in consideration of the premises and other good and valuable
consideration, the receipt and sufficiency of which are hereby acknowledged,
the parties hereto agree as follows:
 
  1. Definitions. As used in this Agreement, all capitalized terms not defined
herein shall have the meanings attributed to such terms in the Merger
Agreement. The parties acknowledge and agree that the term "Damages" also
includes amounts paid in settlement of any Action (including, without
limitation, fees and disbursements of counsel and investigation expenses
incurred in connection therewith.)
 
  2. Appointment of Agent and Representative.
 
  (a) Sterling and KnowledgeWare hereby appoint the Agent as escrow agent for
the purposes set forth herein and the Agent hereby accepts such appointment on
the terms herein provided.
 
  (b) The Representative is hereby appointed as agent and representative of the
Record Holders for the purposes set forth herein and the Representative accepts
such appointment on the terms herein provided.
 
  3. Escrowed Shares.
 
  (a) For the purposes herein set forth, Sterling has caused to be deposited
with the Agent     shares of Buyer Common Stock (the "Escrowed Shares"). The
Escrowed Shares shall be registered in the name of the Agent or its nominee. If
during the term of this Agreement there is declared a stock dividend or stock
split, all securities thereby issuable with respect to the Escrowed Shares
shall be deposited hereunder and shall be deemed "Escrowed Shares" for the
purposes of this Agreement. If during the term of this Agreement there is paid
any dividends (within the meaning of Section 301(c)(1) of the Code) in cash or
other property in respect of the Escrowed Shares, such dividends shall be paid
by the Agent to the Record Holders, pro rata, except that any such dividends
paid in respect of Escrowed Shares as to which a claim exists pursuant to a
Sterling Notice shall constitute and be deemed part of such Escrowed Shares for
purposes of this Agreement. If during the term of this Agreement there is any
other distribution which does not constitute a dividend (within the meaning of
Section 301(c)(1) of the Code) in cash or other property in respect of the
Escrowed
 
                                      A-27
<PAGE>
 
Shares, such distribution shall be retained by the Agent and shall constitute
part of the "Escrowed Shares" for purposes of this Agreement. The Escrowed
Shares shall be held and disbursed by the Agent in accordance with the terms of
this Agreement.
 
  (b) The Escrowed Shares held by the Agent pursuant to this Agreement shall be
deemed issued and outstanding. With respect to any matter on which stockholders
of Sterling have a right to vote, the Agent, on behalf of the Record Holders,
shall have the right to vote, or not vote, all Escrowed Shares (or any portion
thereof) in such manner as it deems appropriate as agent for the Record
Holders; provided that, at Sterling's expense, the Agent shall promptly
forward, or cause to be forwarded, copies of any proxies, proxy statements and
other soliciting materials to the Record Holders, and shall vote the applicable
portion of the Escrowed Shares in accordance with any written instructions
timely received by the Agent from any Record Holder.
 
  (c) The Record Holders' interest in this Agreement and the Escrowed Shares
(prior to the disbursement thereof) may not be transferred except by operation
of law.
 
  4. Application of Escrow Deposit. The Escrowed Shares shall be held in escrow
under the terms of this Agreement and released by the Agent upon the following
terms:
 
    (a) Upon joint written notice and instruction from Sterling and the
  Representative that the Escrowed Shares, or any portion thereof, should be
  disbursed, the Agent shall make such disbursement in accordance with the
  directions set forth in such joint written notice and instruction.
 
    (b) If at any time, or from time to time, before the second anniversary
  of the Effective Time, Sterling delivers to the Agent written notice (a
  "Sterling Notice") asserting that Sterling is entitled to indemnification
  as set forth in Section 7.18 of the Merger Agreement, which Sterling Notice
  shall state the basis and amount of such claim, then the Agent shall
  disburse, on the twentieth business day following receipt of the Sterling
  Notice, all or such portion of the Escrowed Shares to Sterling as specified
  in the Sterling Notice; provided that if the Agent receives written notice
  from the Representative prior to such twentieth business day that a dispute
  exists with respect to the claims made in the Sterling Notice (a "Dispute
  Notice"), which Dispute Notice shall state the basis of such dispute, the
  Agent shall continue to hold the Escrowed Shares (but shall disburse to
  Sterling any portion of such Escrowed Shares as to which no dispute exists)
  until directed otherwise pursuant to paragraph (a) above or (c) below.
 
    (c) If the Agent timely receives a Dispute Notice, the Agent shall retain
  the Escrowed Shares subject of the Sterling Notice until the first to occur
  of the following:
 
      (i) receipt by the Agent of a joint written instructions from
    Sterling and the Representative, in which case the Agent shall disburse
    the Escrowed Shares (or applicable portions thereof) as set forth in
    such joint written instructions; or
 
      (ii) receipt by the Agent of a written notice from either Sterling or
    the Representative (a "Litigation Certificate") to the effect that such
    person(s) has received a final non-appealable judgment or order from a
    court of competent jurisdiction (and attaching a copy of such judgment
    or order) resolving the dispute as to the disbursement of the subject
    Escrowed Shares setting forth in reasonable detail the substance of
    such judgment and instructions as to the resulting disbursement of the
    Escrowed Shares (or applicable portions thereof), in which case the
    Agent shall make such disbursement (or portions thereof) on the
    twentieth business day following receipt of the Litigation Certificate;
    provided that if Sterling or the Representative delivers to the Agent a
    certificate prior to such twentieth business day disputing the contents
    of the Litigation Certificate (the "Countervailing Certificate"), then
    the Agent, on the twentieth business day following receipt of the
    Countervailing Certificate, shall interplead the subject Escrowed
    Shares into, or file a declaratory judgment action with, a court of
    competent jurisdiction to determine the rights of the parties to the
    Escrowed Shares, unless prior to such twentieth business day the Agent
    receives a joint written instruction pursuant to paragraph (c)(i)
    above.
 
                                      A-28
<PAGE>
 
    (d) If, on the second anniversary of the Effective Time, there are
  Escrowed Shares remaining undisbursed and not the subject of a Sterling
  Notice or a Contingent Claim Notice (defined below), the Agent shall
  disburse such Escrowed Shares to the Record Holders pro rata in accordance
  with their relative record ownership of Shares issued and outstanding as of
  the Effective Time.
 
    (e) If, within 30 days prior to the second anniversary of the Effective
  Time, Sterling, in its reasonable good faith judgment, believes that there
  exist one or more Actions with respect to which Sterling would be entitled
  to indemnification for Damages incurred subsequent to the second
  anniversary of the Effective Time (each a "Contingent Claim" and
  collectively, "Contingent Claims"), Sterling may give the Agent written
  notice (a "Contingent Claim Notice") of such Contingent Claims, which
  Contingent Claim Notice shall state the basis of the Contingent Claims and
  Sterling's reasonable good faith estimate of the maximum amount of Damages
  for which it would be entitled to indemnification with respect thereto. In
  the event a Contingent Claim Notice is delivered, a number of Escrowed
  Shares equal to the aggregate amount of such estimated Damages divided by
  the most recently reported closing sales price of Buyer Common Stock on the
  date of the Contingent Claim Notice shall remain subject to this Agreement,
  and this Agreement shall remain in effect; provided that, with respect to
  any Contingent Claim which has not been resolved on or prior to the fourth
  anniversary of the Effective Time, any Escrowed Shares attributable to such
  Contingent Claim and not disbursed shall be disbursed to the Record Holders
  pro rata in accordance with their relative record ownership of Shares
  issued and outstanding as of the Effective Time unless, as of the fourth
  anniversary of the Effective Time, such Contingent Claim is then subject to
  litigation or binding arbitration proceedings, in which case such Escrowed
  Shares shall remain subject to this Agreement, and this Agreement shall
  remain in effect, until the final, nonappealable resolution of such
  proceedings.
 
    (f) Notwithstanding any other provision of this Agreement, no fractional
  shares of Buyer Common Stock will be issued to the Record Holders and any
  Record Holder who would otherwise be entitled to receive a fractional share
  will be entitled to receive a cash payment in lieu thereof, which payment
  shall represent such holder's proportionate interest in the net proceeds
  from the sale by the Agent, within ten business days following the date the
  disbursement of such fractional share would have been made, on behalf of
  all such Record Holders of the aggregate fractional shares of Buyer Common
  Stock that such persons would be entitled to receive but for this paragraph
  (f).
 
    (g) For the purposes of this Agreement, whenever in this Agreement it is
  provided that the Agent may or shall disburse Escrowed Shares to Sterling,
  the Agent shall, as Sterling may direct in writing, either (i) deliver to
  Sterling a stock certificate representing the appropriate number of
  Escrowed Shares or (ii) sell an appropriate number of Escrowed Shares and
  deliver the proceeds therefrom to Sterling. In determining the number of
  shares to be so disbursed or sold in respect of Damages, the number of
  Escrowed Shares to be disbursed or sold shall be equal to the number of
  shares (rounded to the nearer whole share) determined by dividing the
  amount of Damages with respect to which Sterling is entitled to be
  indemnified by the most recently reported closing sale price of the Buyer
  Common Stock preceding the date Sterling delivers to the Agent the Sterling
  Notice.
 
    (h) Notwithstanding paragraph (g) above, in the event that the Agent is
  required to sell any of the Escrowed Shares pursuant to Section 4(g) or
  Section 12(c) or otherwise, Sterling may notify the Agent that the Agent
  shall suspend its efforts to sell any or all of such shares until receipt
  of further notice from Sterling, without giving any reason therefor, and
  the Agent shall suspend such efforts until receipt of such further notice.
 
  5. Communications with Representative.
 
  (a) Within a reasonable time following receipt of notice of an Action for
which Sterling believes it is entitled to indemnification, Sterling shall give
the Representative written notice of such Action, which notice shall describe
the material allegations of such Action.
 
                                      A-29
<PAGE>
 
  (b) Within a reasonable time following the end of each calendar quarter while
this Agreement is in effect, Sterling shall deliver to the Representative a
written summary of the status of each Action with respect to which Sterling is
seeking indemnification.
 
  (c) At least ten (10) days prior to settling any Action with respect to which
Sterling is seeking indemnification (or such shorter period as is then
consented to by the Representative), Sterling shall give the Representative
written notice thereof, which notice shall describe the material terms of such
settlement.
 
  (d) Within a reasonable time after receiving a request therefor from the
Representative, Sterling shall furnish the Representative such additional
information relating to Actions as he may reasonably request from time to time.
 
  6. Liability of the Agent. The duties of the Agent hereunder shall be limited
to the observance of the express provisions of this Agreement. The Agent shall
not be subject to, or be obliged to recognize, any other agreement between the
parties hereto or directions or instructions not specifically set forth or
provided for herein. The Agent shall not make any disposition of Escrowed
Shares which is not expressly authorized by this Agreement. The Agent may rely
upon and act upon any instrument received by it pursuant to the provisions of
this Agreement which it in good faith believes to be genuine and in conformity
with the requirements of this Agreement. Except as expressly provided in this
Agreement, the Agent shall have no duty to determine or inquire into the
happening or occurrence of any event. Anything in this Agreement to the
contrary notwithstanding, the Agent shall not be liable to any person for
anything which it may do or refrain from doing in connection with this
Agreement, unless the Agent is guilty of gross negligence or willful
misconduct.
 
  7. Duties of the Agent.
 
  (a) The Agent shall hold or sell the Escrowed Shares, or portions thereof, as
set forth herein.
 
  (b) The Agent shall have no authority or obligation to invest funds except as
herein provided.
 
  (c) Promptly following receipt by the Agent of any certificate or notice (i)
from Sterling or the Representative pursuant to Section 4, the Agent shall
promptly provide a copy thereof to the other and (ii) from any Record Holder
pursuant to Section 13, the Agent shall promptly provide a copy thereof to
Sterling and the Representative.
 
  8. Indemnification of the Agent.
 
  (a) Sterling and KnowledgeWare (solely to the extent of the Escrowed Shares)
each shall severally indemnify and hold the Agent, its employees, officers,
agents, successors and assigns harmless from and against any and all loss,
cost, damages or expenses (including reasonable attorneys' fees) it or they may
sustain by reason of the Agent's service as escrow agent hereunder, except such
a loss, cost, damage or expense (including reasonable attorneys' fees) incurred
by reason of such acts or omissions for which the Agent is liable or
responsible under the provisions of Section 6 hereof.
 
  (b) The Agent is hereby given a prior lien on all rights, titles and
interests of Sterling and the Record Holders in the Escrowed Shares, including
any property or cash (or cash equivalent) arising therefrom, in order to
protect, indemnify and reimburse the Agent for the costs, expenses, fees and
liabilities to which it is entitled pursuant to Section 8(a) above.
 
  9. Fees of the Agent. The Agent's compensation for services hereunder shall
be in accordance with Exhibit A. In the event extraordinary services are
required of the Agent beyond the services described herein, compensation shall
be an amount that is fair and equitable based upon the services and
responsibility involved. Sterling shall pay the fees and expenses of the Agent
for serving as escrow agent.
 
  10. Resignation of the Agent. The Agent may resign as escrow agent by giving
each of Sterling and the Representative not less than 30 days' written notice
of the effective date of such resignation. Sterling shall
 
                                      A-30
<PAGE>
 
have the right to designate a substitute escrow agent, provided it is
reasonably acceptable to the Representative. If on or prior to the effective
date of such resignation, the Agent has not received written instructions from
Sterling of a substitute escrow agent, it shall thereupon deposit the Escrowed
Shares into the registry of a court of competent jurisdiction. The parties
hereto intend that a substitute escrow agent shall be appointed to fulfill the
duties of the Agent hereunder for the remaining term of this Agreement in the
event of the Agent's resignation.
 
  11. Remedies of the Agent.
 
  (a) In the event of any dispute hereunder, or if conflicting demands or
notices are made upon the Agent, or in the event the Agent in good faith is in
doubt as to what action it should take hereunder, the Agent shall have the
right to (i) stop all further proceedings in, and performance of, this
Agreement and instructions received hereunder, and/or (ii) file a suit in
interpleader and obtain an order from a court of competent jurisdiction
requiring all persons involved to interplead and litigate in such court their
several claims and rights with respect to the Escrowed Shares.
 
  (b) While any legal proceeding arising out of this Agreement is pending, the
Agent shall have the right to stop all further proceedings in, and performance
of, this Agreement and instructions received hereunder until all differences
shall have been resolved by agreement or a final order.
 
  (c) The Agent may from time to time consult with legal counsel of its own
choosing in the event of any disagreement, controversy, question or doubt as to
the construction of any of the provisions hereof or its duties hereunder, and
it shall incur no liability and shall be fully protected in acting in good
faith in accordance with the opinion and instructions of such counsel. Any such
fees and expenses of such legal counsel shall be considered part of the fees
and expenses of the Agent for the purposes of Section 9 of this Agreement.
 
  12. Responsibilities of the Representative.
 
    (a) The Representative is an attorney who has been designated by the
  Board of Directors of KnowledgeWare with the consent of Sterling in its
  reasonable discretion. The duties of the Representative hereunder shall be
  limited to the observance of the express provisions of this Agreement. The
  Representative shall not be subject to, or be obliged to recognize, any
  other agreement between the parties hereto or directions or instructions
  not specifically set forth or provided for herein. Anything in this
  Agreement to the contrary notwithstanding, the Representative shall not be
  liable to any Record Holder or any other person for anything which it may
  do or refrain from doing in connection with this Agreement, unless the
  Representative is guilty of willful misconduct.
 
    (b) The Representative and its successors and assigns shall be
  indemnified and held harmless, out of the Escrowed Shares, from and against
  any and all loss, cost, damages or expenses (including reasonable
  attorneys' fees) it or they may sustain by reason of the Representative's
  services as representative hereunder, except such loss, cost, damage or
  expense (including reasonable attorneys' fees) incurred by reason of such
  acts or omissions for which the Representative is responsible pursuant to
  paragraph (a) above.
 
    (c) The Representative's compensation for services hereunder shall be at
  his normal hourly rate. The fees and reasonable expenses of the
  Representative shall be paid out of the Escrowed Shares on a timely basis
  upon presentation of invoices to the Agent, and shall be paid through the
  sale by the Escrow Agent of a sufficient number of Escrowed Shares.
 
  13. Resignation or Removal of the Representative. The Representative may
resign as representative by giving Sterling, the Agent and each of the Record
Holders not less than 30 days' written notice of the effective date of such
resignation. Record Holders who as of the Effective Time owned of record at
least 51% of the issued and outstanding Shares may, by delivering written
notice to Sterling, the Agent and the Representative, remove the Representative
with or without cause. Prior to the effective date of such resignation or
removal, Record Holders who as of the Effective Time owned of record at least
51% of the issued and outstanding
 
                                      A-31
<PAGE>
 
Shares may deliver to Sterling and the Agent a written designation of a
substitute representative who shall be acceptable to Sterling in its reasonable
discretion. If no designation is made, the Representative shall appoint a
substitute representative, provided such substitute representative is
reasonably acceptable to Sterling.
 
  14. Miscellaneous.
 
    (a) Any notice or communication hereunder to Sterling, the Representative
  or the Agent must be in writing and given by overnight courier, depositing
  the same in the United States mail, addressed to the person to be notified,
  postage prepaid and registered or certified with return receipt requested,
  or by delivering the same in person. Such notice shall be deemed received
  on the date on which it is received if sent by overnight courier or hand-
  delivered or on the third business day following the date on which it is so
  mailed. For purposes of notice, the addresses shall be:
 
If to Sterling:     Sterling Software, Inc.
                    8080 North Central Expressway
                    Suite 1100
                    Dallas, Texas 75206
                    Attn: General Counsel
 
with a copy to:     Jackson & Walker, L.L.P.
                    901 Main Street, Suite 6000
                    Dallas, Texas 75202
                    Attn: Charles D. Maguire, Jr.
 
If to the Representative:
 
 
If to the Agent:    The First National Bank of Boston
                    Blue Hills Office Park
                    150 Royal Street; Mail Stop 45-02-15
                    Canton, MA 02021
                    Attention: Corporate Trust
 
Any notice or communication hereunder to a Record Holder must be in writing and
given by depositing the same in the United States mail, addressed to the Record
Holder as reflected on the records of the transfer agent for the Shares as of
the Effective Time, which notice shall be deemed received on the fifth business
day following the date on which it is so mailed. Any party or Record Holder may
change its address for notice by written notice given to the other parties in
accordance with this Section. In cases where Sterling and the Representative
may give joint written notice or instructions to the Agent, such notice may be
given by separate instruments of similar tenor.
 
  (b) This Agreement may be amended, modified or supplemented only by an
instrument in writing executed by Sterling, the Representative and the Agent;
provided that this Agreement may not be amended in a manner that would
materially and adversely affect the rights or benefits of the Record Holders
without the written consent of Record Holders who as of the Effective Time
owned of record at least 51% of the issued and outstanding Shares.
 
  (c) This Agreement and the agreements contemplated hereby constitute the
entire agreement of the parties regarding the subject matter hereof, and
supersede all prior agreements and understandings, both written and oral, among
the parties, or any of them, with respect to the subject matter hereof.
 
  (d) This Agreement and the rights and obligations of the parties hereto shall
be governed by and construed and enforced in accordance with the substantive
laws (but not the rules governing conflicts of laws) of the State of Texas.
 
  (e) This Agreement may be executed in multiple counterparts, each of which
shall be deemed an original, and all of which together shall constitute one and
the same instrument.
 
                                      A-32
<PAGE>
 
  IN WITNESS WHEREOF, the parties hereto have hereunto caused this Agreement to
be executed as of the day and year first above written.
 
                                          STERLING:
 
                                          STERLING SOFTWARE, INC.
 
                                          By: _________________________________
 
                                          Its: ________________________________
 
                                          KNOWLEDGEWARE:
 
                                          KNOWLEDGEWARE, INC.
 
                                          By: _________________________________
 
                                          Its: ________________________________
 
                                          AGENT:
 
                                          THE FIRST NATIONAL BANK OF BOSTON
 
                                          By: _________________________________
 
                                          Its: ________________________________
 
                                          REPRESENTATIVE:
 
                                          _____________________________________
 
                                      A-33
<PAGE>
 
                                                                       EXHIBIT A
 
SCHEDULE OF FEES
- --------------------------------------------------------------------------------
 
                                      A-34
<PAGE>
 
                                EXHIBIT 7.13(I)
 
                            FORM OF AFFILIATE LETTER
 
Sterling Software, Inc.
8080 N. Central Expressway, Suite 1100
Dallas, Texas 75206
 
Ladies and Gentlemen:
 
  I have been advised that as of the date of this letter I may be deemed to be
an "affiliate" of KnowledgeWare, Inc, a Georgia corporation (the
"Corporation"), as the term "affiliate" is defined for purposes of paragraphs
(c) and (d) of Rule 145 of the rules and regulations (the "Rules and
Regulations") of the Securities and Exchange Commission (the "Commission")
under the Securities Act of 1933, as amended (the "Act"). Pursuant to the terms
of the Amended and Restated Agreement and Plan of Merger dated as of August 31,
1994 to be effective as of July 31, 1994 (the "Merger Agreement") among
Sterling Software, Inc., a Delaware corporation (the "Buyer"), SSI Corporation,
a Georgia corporation ("Merger Sub"), and the Corporation, Merger Sub will be
merged with and into the Corporation (the "Merger").
 
  As a result of the Merger, I may receive shares of common stock, par value
$.10 per share, of the Buyer (the "Buyer Securities") in exchange for shares
owned by me of common stock, no par value, of the Corporation (the "Shares").
 
  I represent, warrant and covenant to the Buyer that in the event I receive
any Buyer Securities as a result of the Merger:
 
    A. I shall not make any sale, transfer or other disposition of the Buyer
  Securities in violation of the Act or the Rules and Regulations.
 
    B. I have carefully read this letter and the Merger Agreement and
  discussed the requirements of such documents and other applicable
  limitations upon my ability to sell, transfer or otherwise dispose of Buyer
  Securities to the extent I felt necessary, with my counsel or counsel for
  the Corporation.
 
    C. I have been advised that the issuance of Buyer Securities to me
  pursuant to the Merger has been registered with the Commission under the
  Act on a Registration Statement on Form S-4. However, I have also been
  advised that, since at the time the Merger was submitted for a vote of the
  stockholders of the Corporation, I may be deemed to have been an affiliate
  of the Corporation and the distribution by me of the Buyer Securities has
  not been registered under the Act, I may not sell, transfer or otherwise
  dispose of Buyer Securities issued to me in the Merger unless (i) such
  sale, transfer or other disposition has been registered under the Act, (ii)
  such sale, transfer or other disposition is made in conformity with the
  volume and other limitations of Rule 145 promulgated by the Commission
  under the Act, or (iii) in the opinion of counsel reasonably acceptable to
  Buyer, such sale, transfer or other disposition is otherwise exempt from
  registration under the Act.
 
    D. I understand that the Buyer is under no obligation to register the
  sale, transfer or other disposition of the Buyer Securities by me or on my
  behalf under the Act or to take any other action necessary in order to make
  compliance with an exemption from such registration available except, as
  applicable, as set forth in the Merger Agreement.
 
    E. I also understand that stop transfer instructions will be given to the
  Buyer's transfer agent with respect to the Buyer Securities and that there
  will be placed on the certificates for the Buyer Securities issued to me,
  or any substitutions therefor, a legend stating in substance:
 
    "THE SHARES REPRESENTED BY THIS CERTIFICATE WERE ISSUED IN A
    TRANSACTION TO WHICH RULE 145 PROMULGATED UNDER THE SECURITIES ACT OF
    1933 APPLIES. THE SHARES REPRESENTED BY THIS CERTIFICATE MAY ONLY BE
    TRANSFERRED IN ACCORDANCE WITH THE TERMS OF AN AGREEMENT
 
                                      A-35
<PAGE>
 
    DATED     , 1994 BETWEEN THE REGISTERED HOLDER HEREOF AND STERLING
    SOFTWARE, INC., A COPY OF WHICH AGREEMENT IS ON FILE AT THE PRINCIPAL
    OFFICES OF KNOWLEDGEWARE, INC.
 
    F. I also understand that unless the transfer by me of my Buyer
  Securities has been registered under the Act or is a sale made in
  conformity with the provisions of Rule 145, the Buyer reserves the right to
  put the following legend on the certificates issued to my transferee:
 
    "THE SHARES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED
    UNDER THE SECURITIES ACT OF 1933 AND WERE ACQUIRED FROM A PERSON WHO
    RECEIVED SUCH SHARES IN A TRANSACTION TO WHICH RULE 145 PROMULGATED
    UNDER THE SECURITIES ACT OF 1933 APPLIES. THE SHARES HAVE BEEN ACQUIRED
    BY THE HOLDER NOT WITH A VIEW TO, OR FOR RESALE IN CONNECTION WITH, ANY
    DISTRIBUTION THEREOF WITHIN THE MEANING OF SECURITIES ACT OF 1933 AND
    MAY NOT BE SOLD, PLEDGED OR OTHERWISE TRANSFERRED EXCEPT IN ACCORDANCE
    WITH AN EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES
    ACT OF 1933."
 
  It is understood and agreed that the legends set forth in paragraphs E and F
above shall be removed by delivery of substitute certificates without such
legend if such legend is not required for purposes of the Act or this
Agreement.
 
  Execution of this letter should not be considered an admission on my part
that I am an "affiliate" of the Corporation as described in the first paragraph
of this letter, or as a waiver of any rights I may have to object to any claim
that I am such an affiliate on or after the date of this letter.
 
                                          Very truly yours,
 
                                          _____________________________________
                                                       (Signature)
 
                                          _____________________________________
                                                     (Printed Name)
 
                                      A-36
<PAGE>
 
                                EXHIBIT 7.13(II)
 
                         REGISTRATION RIGHTS AGREEMENT
 
  This REGISTRATION RIGHTS AGREEMENT (this "Agreement") is dated as of    ,
1994 by and among Sterling Software, Inc., a Delaware corporation (the
"Buyer"), and the former stockholders of KnowledgeWare, Inc., a Georgia
corporation (the "Corporation"), listed on the signature page hereto (the
"Stockholders").
 
  WHEREAS, the Buyer, SSI Corporation, a Georgia corporation and a wholly owned
subsidiary of the Buyer ("Merger Sub") and the Corporation entered into an
Amended and Restated Agreement and Plan of Merger dated as of August 31, 1994
to be effective as of July 31 (the "Merger Agreement"; capitalized terms not
defined herein shall have the meanings set forth in the Merger Agreement); and
 
  WHEREAS, Section 7.13 of the Merger Agreement contemplates that Buyer will
enter into this Agreement; and
 
  WHEREAS, certain of the Stockholders executed Amended and Restated
Stockholders Agreements (the "Stockholder Agreements") dated as of August 31,
1994 providing that such Stockholders would vote in favor of the transactions
contemplated by the Merger Agreement, and to induce such Stockholders to enter
into the Stockholders Agreement, the Buyer has agreed to grant such
Stockholders certain registration rights as set forth herein;
 
  NOW THEREFORE, in consideration of the foregoing and the covenants set forth
herein, in the Merger Agreement and the Stockholders Agreements, the
Stockholder and Buyer agree as follows:
 
  1. REGISTRATION RIGHTS. The Buyer shall prepare and file a registration
statement (on an appropriate form) under the Securities Act to permit the sale
or other disposition, on a delayed or continuous basis, of any or all shares of
Buyer Common Stock that have been acquired by or are issuable to the
Stockholders with respect to the Shares and the Corporation Options (if such
Stockholder is not otherwise able to sell such shares free from restriction
under the federal securities laws). The Buyer shall use its reasonable efforts
to cause such registration statement to become effective as promptly as
reasonably practicable following the filing thereof, and to obtain all consents
or waivers of other parties which are required thereof and to keep such
registration statement effective for such period as may be reasonably necessary
to effect such sale or other disposition; provided, however, Buyer shall not be
obligated to keep such registration statement effective after such time as all
Stockholders are eligible to sell their shares of Buyer Common Stock pursuant
to Rule 144 or 145 under the Securities Act without being subject to volume
resale limitations; and provided, further, the Buyer shall not be required to
prepare audited financial statements (other than annual audited financial
statements) in order to maintain the effectiveness of the registration
statement. In connection with any sale by any Stockholder of Buyer Common Stock
pursuant to such registration statement, such Stockholder must give and the
Buyer must receive written notice of such Stockholder's intention to make such
a sale no less than two (2) nor more than twenty (20) business days prior to
the date of the proposed sale, which notice shall include the number of shares
proposed to be sold, the proposed plan of distribution and the time period
during the thirty (30) days following the date of such notice during which the
shares may be sold (the "Sale Period"), and such Stockholder shall not, during
any Sale Period, deliver any prospectus that is part of such registration
statement during any period of time when, but only so long as, the Buyer gives
such Stockholder written notice (a "Delay Notice") that the Buyer is in
possession of material non-public information that, in the exercise of its
reasonable judgement, would be required to be disclosed in such registration
statement in order to comply with the Securities Act and the rules and
regulations of the SEC thereunder; provided that the Buyer shall promptly
provide written notice to such Stockholder when such delay is no longer
applicable; provided further that no stockholder shall be so prevented from
selling such Buyer Common Stock for a period longer than ninety (90)
consecutive days (a "Delay Period") following receipt of a Delay Notice and any
two Delay Periods must be at least fifteen (15) days apart.
 
                                      A-37
<PAGE>
 
  2. INDEMNIFICATION; CONTRIBUTION.
 
  (a) Indemnification by the Buyer. The Buyer agrees to indemnify and hold
harmless each Stockholder, its officers, directors, agents, employees,
representatives and each person or entity who controls such Stockholder (within
the meaning of the Securities Act), against all losses, claims, damages,
liabilities and expenses (including reasonable costs of investigation) arising
out of or based upon any untrue or alleged untrue statement of material fact
contained in any registration statement, any amendment or supplement thereto,
any prospectus or preliminary prospectus or any omission or alleged omission to
state therein a material fact required to be stated therein or necessary to
make the statements therein not misleading, except insofar as the same arise
out of or are based upon any such untrue statement or omission contained in any
information furnished in writing to the Buyer by such Stockholder for use in
the preparation thereof. In connection with an underwritten offering, the Buyer
will indemnify the underwriters thereof, their officers and directors and each
person who controls such underwriters (within the meaning of the Securities
Act) to the same extent as provided above with respect to the indemnification
of the Stockholders.
 
  (b) Indemnification by Stockholders. In connection with any registration
statement in which a Stockholder is participating, each such Stockholder will
furnish to the Buyer in writing such information with respect to the name and
address of such Stockholder, the amount of Buyer Common Stock held by such
Stockholder and the nature of such holdings, and such other information as is
required by the Buyer for use in connection with any such registration
statement or prospectus and agrees to indemnify and hold harmless the Buyer,
its directors, officers, agents, employees, representatives and each person or
entity who controls the Buyer (within the meaning of the Securities Act),
against all losses, claims, damages, liabilities and expenses (including
reasonable costs of investigation) arising out of or based upon any untrue or
alleged untrue statement of material fact contained in any registration
statement, any amendment or supplement thereto, any prospectus or preliminary
prospectus or any omission to state therein a material fact required to be
stated therein or necessary to make the statements therein not misleading, to
the extent that such untrue statement is contained in or omission arises from
any information furnished in writing by such Stockholder for use in the
preparation thereof. In no event shall the liability of any selling Stockholder
of Buyer Common Stock hereunder be greater in amount than the dollar amount of
the proceeds received by such Stockholder upon the sale of the Buyer Common
Stock giving rise to such indemnification obligation.
 
  (c) Conduct of Indemnification Proceedings. Any person entitled to
indemnification hereunder agrees to give prompt written notice to the
indemnifying party after the receipt by such person of any written notice of
the commencement of any action, suit, proceeding or investigation or threat
thereof made in writing for which such person will claim indemnification or
contribution pursuant to this Agreement and, unless in the reasonable judgment
of such indemnified party (i) a conflict of interest may exist between such
indemnified party and the indemnifying party with respect to such claim or (ii)
the named parties to any such action, suit, proceeding or investigation
(including any impleaded parties) include both an indemnifying party and an
indemnified party, and such indemnified party shall have been advised by
counsel that there may be one or more legal defenses available to it which are
different from or additional to those available to the indemnifying party,
permit the indemnifying party to assume the defense of such claim with counsel
reasonably satisfactory to such indemnified party. Whether or not such defense
is assumed by the indemnifying party, the indemnifying party will not be
subject to any liability for any settlement made without its consent (but such
consent will not be unreasonably withheld). No indemnifying party will consent
to entry of any judgment or enter into any settlement which does not include as
an unconditional term thereof the giving by the claimant or plaintiff to such
indemnified party of a release from all liability in respect of such claim or
litigation. If the indemnifying party is not entitled to, or elects not to,
assume the defense of a claim, it will not be obligated to pay the fees and
expenses of more than one counsel with respect to such claim, unless in the
reasonable judgment of any indemnified party a conflict of interest may exist
between such indemnified party and any other of such indemnified parties with
respect to such claim, in which event the indemnifying party shall be obligated
to pay the fees and expenses of one additional counsel.
 
 
                                      A-38
<PAGE>
 
  (d) Contribution. If the indemnification provided for in this Section 2 from
the indemnifying party is unavailable to an indemnified party hereunder in
respect of any losses, claims, damages, liabilities or expenses referred to
therein, then the indemnifying party, in lieu of indemnifying such indemnified
party, shall contribute to the amount paid or payable by such indemnified party
as a result of such losses, claims, damages, liabilities or expenses in such
proportion as is appropriate to reflect the relative fault of the indemnifying
party and indemnified parties in connection with the actions which resulted in
such losses, claims, damages, liabilities or expenses, as well as any other
relevant equitable considerations. The relative fault of such indemnifying
party and indemnified parties shall be determined by reference to, among other
things, whether any statement of a material fact or omission or alleged
omission to state a material fact has been made by, or relates to information
supplied by, such indemnifying party or indemnified parties, and the parties'
relative intent, knowledge, access to information and opportunity to correct or
prevent such action. The amount paid or payable by a party as a result of the
losses, claims, damages, liabilities and expenses referred to above shall be
deemed to include, subject to the limitations set forth in Section 2(c), any
legal or other fees or expenses reasonably incurred by such party in connection
with any investigation or proceeding.
 
  The parties hereto agree that it would not be just and equitable if
contribution pursuant to this Section 2(d) were determined by pro rata
allocation or by any other method of allocation which does not take account of
the equitable considerations referred to in the immediately preceding
paragraph. Notwithstanding the provisions of this Section 2(d), no selling
Stockholder shall be required to contribute any amount in excess of the amount
by which the total price at which the Buyer Common Stock of such selling
Stockholder were offered to the public exceeds the amount of any damages which
such selling Stockholder has otherwise been required to pay by reason of such
untrue statement or omission. No person guilty of fraudulent misrepresentation
(within the meaning of Section 11(f) of the Securities Act) shall be entitled
to contribution from any person who was not guilty of such fraudulent
misrepresentation.
 
  If indemnification is available under this Section 2, the indemnifying
parties shall indemnify each indemnified party to the full extent provided in
Section 2(a) and (b) without regard to the relative fault of said indemnifying
party or indemnified party or any other equitable consideration provided for in
this Section 2(d).
 
  3. MISCELLANEOUS.
 
  (a) Expenses. Except as otherwise provided herein, each of the parties hereto
shall bear and pay all costs and expenses incurred by it or on its behalf in
connection with the exercise of registration rights granted hereunder,
including fees and expenses of its own counsel.
 
  (b) Waiver and Amendment. Any provision of this Agreement may be waived at
any time by the party that is entitled to the benefits of such provision. This
Agreement may not be modified, amended, altered or supplemented except upon the
execution and delivery of a written agreement executed by the parties hereto.
 
  (c) Entire Agreement; No Third-Party Beneficiary; Severability. Except as
otherwise set forth in the Merger Agreement, this Agreement (including other
documents and instruments referred to herein or therein) (i) constitutes the
entire agreement and supersedes all prior agreements and understandings, both
written and oral, between the parties with respect to the subject matter hereof
and (ii) is not intended to confer upon any person other than the parties
hereto any rights or remedies hereunder. If any term, provision, covenant or
restriction of this Agreement is held by a court of competent jurisdiction or a
governmental entity to be invalid, void or unenforceable, the remainder of the
terms, provisions, covenants and restrictions of this Agreement shall remain in
full force and effect and shall in no way be affected, impaired or invalidated.
 
  (d) Governing Law. This Agreement shall be governed by and construed in
accordance with the laws of the State of Delaware without regard to any
applicable conflicts of law rules.
 
  (e) Descriptive Headings. The descriptive headings contained herein are for
convenience of reference only and shall not affect in any way the meaning or
interpretation of this Agreement.
 
                                      A-39
<PAGE>
 
  (f) Notices. All notices and other communications hereunder shall be in
writing and shall be given by overnight courier, by delivering the same in
person, by telecopy (with confirmation) or by registered or certified mail
(return receipt requested) to the parties at the following addresses (or at
such other address for a party as shall be specified by like notice):
 
  If to the Buyer to:
 
            Sterling Software, Inc.
            8080 N. Central Expressway, Suite 1100
            Dallas, Texas 75206
            Telecopier No.: (214) 750-0905
            Attention: President
 
   with a copy to:
 
            Jackson & Walker, L.L.P.
            901 Main Street, Suite 6000
            Dallas, Texas 75202
            Telecopier No.: (214) 953-5822
            Attention: Charles D. Maguire, Jr.
 
  If to the Stockholder to:
 
            Such address as appears on the signature page hereof
 
Such notice shall be deemed delivered and received on the date on which it is
received if sent by overnight courier, hand-delivered or telecopy, or on the
fifth business day following the date on which it is so mailed.
 
  (g) Counterparts. This Agreement and any amendments hereto may be executed in
two counterparts, each of which shall be considered one and the same agreement
and shall become effective when both counterparts have been signed by each of
the parties and delivered to the other party, it being understood that both
parties need not sign the same counterpart.
 
  (h) Assignment. Neither this Agreement nor any of the rights, interests or
obligations hereunder shall be assigned by any party hereto.
 
  (i) Specific Performance. The parties hereto agree that this Agreement may be
enforced by either party through specific performance, injunctive relief and
other equitable relief. The parties further agree to waive any requirement for
the securing or posting of any bond in connection with the obtaining of any
such equitable relief and that this provision is without prejudice to any other
rights that the parties hereto may have for any failure to perform this
Agreement.
 
                                      A-40
<PAGE>
 
  IN WITNESS WHEREOF, the Stockholders and the Buyer have caused this
Registration Rights Agreement to be signed, all as of the date first written
above.
 
                                          BUYER:
 
                                          STERLING SOFTWARE, INC.
 
                                          By: _________________________________
 
                                          Name: _______________________________
 
                                          Title: ______________________________
 
Address for Notice:          STOCKHOLDERS:
 
                                      A-41
<PAGE>
 
                                                                      APPENDIX B
                ALEX. BROWN & SONS
[ART]                  INCORPORATED
                ESTABLISHED 1800 . AMERICAS'S OLDEST INVESTMENT BANKING FIRM
                MEMBERS: NEW YORK STOCK EXCHANGE, INC. AND OTHER LEADING
                EXCHANGES

                                                          REPLY TO: P.O. BOX 515
                                                             BALTIMORE, MD 21203
August 31, 1994
 
Board of Directors
KnowledgeWare, Inc.
3340 Peachtree Road, NE
Atlanta, GA 30326
 
Dear Sirs:
 
  We understand that KnowledgeWare, Inc. (the "Company"), Sterling Software,
Inc. ("Sterling"), and a wholly owned subsidiary of Sterling (the "Sub")
propose to enter into an Amended and Restated Agreement and Plan of Merger (the
"Agreement"). Pursuant to the Agreement, the Sub will be merged with and into
the Company (the "Merger"), which shall be the surviving corporation, and the
separate existence of the Sub shall cease. The Agreement provides, among other
things, that each share of the Company's common stock issued and outstanding
immediately prior to the effective time of the Merger will be converted into
.1653 of a share of common stock of Sterling (the "Exchange Ratio"). The terms
and conditions of the Merger are more fully set forth in the Agreement. You
have requested our opinion as to whether the Exchange Ratio is fair, from a
financial point of view, to the holders of the common stock of the Company.
 
  Alex. Brown & Sons Incorporated, as a customary part of its investment
banking business, is engaged in the valuation of businesses and their
securities in connection with mergers and acquisitions, negotiated
underwritings, private placements and valuations for estate, corporate and
other purposes. We have acted as financial advisor to the Board of Directors of
the Company in connection with the Merger and will receive a fee for our
services, a portion of which is contingent upon the consummation of the Merger.
Alex. Brown & Sons Incorporated maintains a market in the common stock of both
the Company and Sterling, and regularly publishes research reports regarding
the computer software industry and the businesses and securities of publicly
owned companies in that industry, including Sterling. We have also acted as a
financial advisor to Sterling in connection with its prior acquisition of
Systems Center, Inc. on June 1, 1993 and as the lead-managing underwriter of a
public offering of Sterling's 5 3/4% Convertible Subordinated Debentures,
closed in February 1993.
 
  In connection with our opinion, we have reviewed certain publicly available
financial information concerning the Company and Sterling, reviewed the
Company's most current financial information, including information regarding
the capital needs of the Company, and certain internal financial analyses and
other information furnished to us by the Company and Sterling. We have also
held discussions with members of the senior management of the Company and
Sterling regarding their respective businesses and prospects. In addition, we
have (i) reviewed the reported price and trading activity for the common stock
of both the Company and Sterling, (ii) compared certain financial information
for both the Company and Sterling with similar information for certain
companies in the software industry whose securities are publicly traded, (iii)
compared certain stock market information and valuations for both the Company
and Sterling with similar information for certain companies in the software
industry whose securities are publicly traded, (iv) reviewed the financial
terms of certain recent business combinations in the software industry, (v)
reviewed the terms of the Agreement and certain related documents, and (vi)
performed such other studies and analyses and considered such other factors as
we deemed appropriate.
 
  We have not independently verified the information described above and for
purposes of this opinion have assumed the accuracy, completeness and fairness
thereof. With respect to information relating to the
 
 ONE THIRTY-FIVE EAST BALTIMORE STREET, BALTIMORE, MARYLAND 21202 . TELEPHONE:
                          410-727-1700 . TELEX: 198186
 
                                      B-1
<PAGE>
 
KnowledgeWare, Inc.
August 31, 1994
Page Two
 
prospects of the Company and Sterling, we have assumed that such information
reflects the best currently available estimates and judgments of the
managements of the Company and Sterling as to the likely future financial
performance of their respective companies and of the combined entity. In
addition, we have not made or been provided with an independent evaluation or
appraisal of the assets of the Company or Sterling, nor have we made any
physical inspection of the properties or assets of the Company or Sterling. Our
opinion is based on market, economic and other conditions as they exist and can
be evaluated as of the date of this letter.
 
  Based upon and subject to the foregoing, it is our opinion that, as of the
date of this letter, the Exchange Ratio is fair, from a financial point of
view, to the holders of the common stock of the Company.
 
  Our advisory services and the opinion expressed herein are provided solely
for your benefit in connection with the proposed Merger and are not intended to
confer rights or remedies upon any stockholder of the Company or Sterling or
any other person.
 
                                          Very truly yours,
 
 
                                          ALEX. BROWN & SONS INCORPORATED
 
                                      B-2
<PAGE>
 
                                                                      APPENDIX C
 
                  AMENDED AND RESTATED STOCK OPTION AGREEMENT
 
  This AMENDED AND RESTATED STOCK OPTION AGREEMENT (this "Agreement") is
entered into as of August 31, 1994 to be effective as of July 31, 1994 by and
between KnowledgeWare, Inc., a Georgia corporation (the "Corporation"), and
Sterling Software, Inc., a Delaware corporation (the "Buyer").
 
  WHEREAS, the Buyer, SSI Corporation, a Georgia corporation and a wholly-owned
subsidiary of the Buyer ("Merger Sub"), and the Corporation have entered into
an Agreement and Plan of Merger dated as of July 31, 1994 and propose to enter
into an Amended and Restated Agreement and Plan of Merger dated as of the date
hereof (the "Merger Agreement"; capitalized terms not defined herein shall have
the meanings set forth in the Merger Agreement), providing for, among other
things, the merger of Merger Sub with and into the Corporation with the
Corporation as the surviving corporation; and
 
  WHEREAS, as a condition and an inducement to the Buyer's willingness to enter
into the Merger Agreement, the Buyer has requested that the Corporation agree,
and the Corporation has agreed, to grant the Buyer the Option (as defined
below);
 
  NOW, THEREFORE, in consideration of the foregoing and the respective
representations, warranties, covenants and agreements set forth herein and in
the Merger Agreement, the Corporation and the Buyer agree as follows:
 
  1. GRANT OF OPTION. Subject to the terms and conditions set forth herein, the
Corporation hereby grants to the Buyer an irrevocable option (the "Option") to
acquire up to 1,200,000 (as adjusted as set forth in Section 6 hereof) shares
(the "Option Shares") of Common Stock, no par value, of the Corporation
("Corporation Common Stock") at an exercise price of $5.00 per Option Share
(the "Purchase Price").
 
  2. EXERCISE OF OPTION. (a) The Buyer may exercise the Option, in whole or in
part, at any time and from time to time following the occurrence of an Exercise
Event (as defined below); provided that, except as otherwise provided in this
Section 2(a), the right to exercise the Option pursuant to this Section 2 shall
expire and be of no further force and effect upon: (i) the Effective Time; or
(ii) twelve months following the first occurrence of an Exercise Event.
Notwithstanding the expiration of the Option, the Buyer shall be entitled to
acquire those Option Shares with respect to which it has exercised the Option
in accordance with the terms hereof prior to the expiration of the Option.
 
  (b) An "Exercise Event" shall occur for purposes of this Agreement upon the
occurrence of any of the following:
 
    (i) (x) the Merger Agreement shall have been terminated by mutual consent
  of the Corporation and the Buyer, (y) an Acquisition Proposal shall have
  been received by the Corporation prior to such termination and (z) within
  twelve months after such termination, the Corporation shall have
  consummated a Business Combination with any person or entity (other than
  the Buyer or its subsidiaries or affiliates);
 
    (ii) the Board of Directors of the Corporation shall have withdrawn,
  modified or changed its recommendation of the Merger Agreement or the
  Merger in a manner adverse to the Buyer or shall have resolved to do any of
  the foregoing at a time when Buyer is not in material breach of the Merger
  Agreement and, within twelve months after termination of the Merger
  Agreement, the Corporation shall have consummated an Acquisition Proposal
  with any person or entity;
 
    (iii) (x) a tender offer or exchange offer for twenty percent (20%) or
  more of the outstanding shares of capital stock of the Corporation shall
  have been commenced while the Merger Agreement is in effect, (y) the Board
  of Directors of the Corporation, within 10 business days after such tender
  offer or exchange offer has been so commenced, either fails to recommend
  against acceptance of such tender offer or exchange offer by its
  stockholders or takes no position with respect to the acceptance of such
  tender
 
                                      C-1
<PAGE>
 
  offer or exchange offer by its stockholders and such tender offer is
  consummated and (z) the Buyer shall have terminated the Merger Agreement;
 
    (iv) (x) any person shall have acquired beneficial ownership or the right
  to acquire beneficial ownership, or any "group" (as such term is defined
  under Section 13(d) of the Exchange Act) shall have been formed which
  beneficially owns, or has the right to acquire beneficial ownership of,
  twenty-five percent (25%) or more of the then outstanding Corporation
  Common Stock while the Merger Agreement is in effect, and (y) the Buyer
  shall have terminated the Merger Agreement; provided, however, this Section
  2(b)(iv) shall not apply with respect to any person who has executed a
  Stockholder Agreement or any "group" of which such person is a member; or
 
    (v) (v) the Merger Agreement shall have failed to receive the requisite
  vote for approval and adoption by the stockholders of the Corporation at
  the stockholders' meeting called for that purpose, (w) at such time, an
  Acquisition Proposal shall have been made and the Board of Directors of the
  Corporation either fails to recommend against acceptance of such
  Acquisition Proposal by its stockholders or takes no position with respect
  to such Acquisition Proposal, (x) at the time of such stockholders'
  meeting, the Buyer shall not have been in material breach of the Merger
  Agreement, (y) the Merger Agreement shall have been terminated, and (z)
  within twelve months after the termination, the Corporation consummates
  such Acquisition Proposal.
 
  (c) In the event the Buyer wishes to exercise the Option, it shall send to
the Corporation a written notice (the "Notice"; the date of such notice being
herein referred to as the "Notice Date") specifying (i) the total number of
Option Shares it intends to acquire pursuant to such exercise and (ii) a place
and date not earlier than three business days nor later than 15 business days
from the Notice Date for the closing of such acquisition (the "Closing Date");
provided that, if the closing of the acquisition pursuant to the exercise of
the Option (the "Closing") cannot be consummated by reason of any applicable
law, the period of time that otherwise would run pursuant to this sentence
shall run instead from the date on which such restriction on consummation has
expired or been terminated; and provided further, without limiting the
foregoing, that if prior notification to or approval of any governmental or
regulatory authority, agency, court or other entity (a "Governmental Entity")
is required in connection with such acquisition, the Buyer shall promptly file
the required notice or application for approval and shall expeditiously process
the same (and the Corporation shall cooperate with the Buyer in the filing of
any such notice or application and the obtaining of any such approval), and the
period of time that otherwise would run pursuant to this sentence shall run
instead from the date on which, as the case may be (i) any required
notification period has expired or been terminated or (ii) such approval has
been obtained, and in either event, any requisite waiting period has passed.
 
  (d) Notwithstanding Section 2(c), in no event shall any Closing Date be more
than 12 months after the related Notice Date, and if the Closing Date shall not
have occurred within 12 months after the related Notice Date due to the failure
to obtain any such required approval, the exercise of the Option effected on
the Notice Date shall be deemed to have expired. Notwithstanding the first
sentence of this paragraph (d), in the event (i) the Buyer receives official
notice that an approval of any Governmental Entity required for the purchase of
Option Shares would not be issued or granted or (ii) a Closing Date shall not
have occurred within 12 months after the related Notice Date due to the failure
to obtain any such required approval, the Buyer shall be entitled to exercise
the Option in connection with the resale of Corporation Common Stock or other
securities pursuant to a registration statement as provided in Section 7.
 
  3. PAYMENT AND DELIVERY OF CERTIFICATES. (a) On each Closing Date, the Buyer
shall pay the Corporation, in immediately available funds by wire transfer to a
bank account designated by the Corporation, an amount equal to the Purchase
Price multiplied by the number of Option Shares to be purchased on such Closing
Date.
 
  (b) At such Closing, simultaneously with the delivery of the consideration
specified in Section 3(a), the Corporation shall deliver to the Buyer a
certificate or certificates representing the Option Shares to be
 
                                      C-2
<PAGE>
 
acquired at such Closing, which Option Shares shall be free and clear of all
liens, claims, charges and encumbrances of any kind whatsoever (including any
preemptive rights of any shareholder).
 
  (c) Certificates evidencing the shares delivered at each Closing pursuant to
Section 3(b) shall be endorsed with the restrictive legend set forth below in
its entirety:
 
    "THE SECURITIES EVIDENCED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED
  UNDER THE SECURITIES ACT OF 1933, AS AMENDED. NO REGISTRATION OF TRANSFER
  OF SUCH SECURITIES WILL BE MADE ON THE BOOKS OF THE ISSUER UNLESS SUCH
  TRANSFER IS MADE IN CONNECTION WITH AN EFFECTIVE REGISTRATION STATEMENT
  UNDER SUCH ACT OR PURSUANT TO AN EXEMPTION FROM THE REGISTRATION
  REQUIREMENTS OF SUCH ACT OR SUCH ACT DOES NOT APPLY."
 
  It is understood and agreed that this legend shall be removed by delivery of
substitute certificate(s) without such legend if the Buyer shall have delivered
to the Corporation a copy of a letter from the staff of the Securities and
Exchange Commission, or an opinion of counsel (from counsel reasonably
acceptable to the Corporation) in form and substance reasonably satisfactory to
the Corporation and its counsel, to the effect that such legend is not required
for purposes of the Securities Act of 1933, as amended (the "Securities Act").
 
  4. REPRESENTATIONS AND WARRANTIES OF THE CORPORATION. The representations and
warranties of the Corporation set forth in Sections 5.2 and 5.6 of the Merger
Agreement are incorporated herein by reference as though set forth herein in
full and shall survive any termination of the Merger Agreement. In addition,
the Corporation hereby represents and warrants to the Buyer that (i) the
Corporation has taken all necessary corporate and other action to reserve, and
at all times from the date hereof until the obligation to deliver Corporation
Common Stock upon the exercise of the Option terminates will have reserved for
issuance, upon exercise of the Option, shares of Corporation Common Stock equal
to the number of shares of Corporation Common Stock for which the Option may be
exercised, and the Corporation will take all necessary corporate action to
reserve for issuance all additional shares of Corporation Common Stock or other
securities which may be issued upon exercise of the Option pursuant to Section
6 of this Agreement and (ii) the shares of Corporation Common Stock to be
issued upon due exercise of the Option, including all additional shares of
Corporation Common Stock or other securities which may be issuable pursuant to
Section 6 of this Agreement, upon issuance and payment therefor pursuant
hereto, shall be validly issued, fully paid and nonassessable, and shall be
delivered free and clear of all liens, claims, charges and encumbrances of any
kind whatsoever, including any preemptive rights of any shareholder of the
Corporation.
 
  5. REPRESENTATIONS AND WARRANTIES OF THE BUYER. The representations and
warranties of the Buyer set forth in the second and third sentences of Section
6.2 and Section 6.5 of the Merger Agreement are incorporated herein by
reference as if set forth herein in full and shall survive any termination of
the Merger Agreement. In addition, the Buyer hereby represents and warrants to
the Corporation that the Option is not being taken, and any Option Shares or
other securities acquired by the Buyer upon exercise of the Option will not be
taken, with a view to the public distribution thereof and will not be
transferred or otherwise disposed of except in a transaction registered or
exempt from registration under the Securities Act.
 
  6. ADJUSTMENT UPON SHARE ISSUANCES, CHANGES IN CAPITALIZATION, ETC. (a) In
the event of any change in Corporation Common Stock by reason of, without
limitation, a stock dividend, split-up, recapitalization, combination, exchange
of shares or similar transaction, the type and number of shares or securities
to be delivered by the Corporation pursuant to the Option shall be adjusted
appropriately, and proper provision shall be made in the agreements governing
such transaction, so that the Buyer shall receive upon exercise of the Option
the number and class of shares or other securities or property that the Buyer
would have received if the Option had been exercised immediately prior to such
event, or the record date therefor, as applicable.
 
                                      C-3
<PAGE>
 
  (b) In the event that the Corporation shall enter into an agreement (i) to
consolidate with or merge into any person, other than the Buyer or one of its
subsidiaries, and shall not be the continuing or surviving corporation of such
consolidation or merger, (ii) to permit any person, other than the Buyer or
one of its subsidiaries, to merge into the Corporation and the Corporation
shall be the continuing or surviving corporation, but, in connection with such
merger, the then outstanding shares of Corporation Common Stock shall be
changed into or exchanged for stock or other securities of the Corporation or
any other person or cash or any other property or then outstanding shares of
Corporation Common Stock shall after such merger represent less than 50% of
the outstanding shares and share equivalents of the merged company or (iii) to
sell or otherwise transfer all or substantially all of its assets to any
person, other than the Buyer or one of its subsidiaries, then, and in each
such case, the agreement governing such transaction shall make proper
provision so that the Option shall, upon the consummation of any such
transaction and upon the terms and conditions set forth in this Agreement, be
converted into, or exchanged for, an option to acquire the same consideration
received by the holders of Corporation Common Stock pursuant to such a
transaction had the Option been exercised in full prior to the consummation of
such transaction. The provisions of this Agreement, including Sections 1, 2, 6
and 7, shall apply with appropriate adjustments to any securities for which
the Option becomes exercisable pursuant to this Section 6.
 
  7. REGISTRATION RIGHTS. The Corporation shall, if requested by the Buyer at
any time and from time to time (a) within three years after the first Closing
Date or (b) for 20 business days following the occurrence of either of the
events set forth in clauses (i) and (ii) of Section 2(d), as expeditiously as
possible prepare and file up to three registration statements under the
Securities Act if such registration is necessary in order to permit the sale
or other disposition of any or all shares of Corporation Common Stock or other
securities that have been acquired by or are issuable to the Buyer upon
exercise of the Option by the Buyer, including a "shelf" registration
statement under Rule 415 under the Securities Act or any successor provision,
and the Corporation shall use its best efforts to qualify such shares or other
securities under any applicable state securities laws. The Buyer agrees to use
all reasonable efforts to cause, and to cause any underwriters of any sale or
other disposition to cause, any sale or other disposition pursuant to such
registration statement to be effected on a widely distributed basis so that
upon consummation thereof no purchaser or transferee shall own beneficially 5%
or more of the then outstanding voting power of the Corporation. The
Corporation shall use all reasonable efforts to cause each such registration
statement to become effective, to obtain all consents or waivers of other
parties which are required thereof and to keep such registration statement
effective for such period as may be reasonably necessary to effect such sale
or other disposition; provided, however, the Corporation shall not be required
to prepare audited financial statements in order to maintain the effectiveness
of the registration statement. In the event that the Buyer requests the
Corporation to file a registration statement following the failure to obtain a
required approval for an exercise of the Option as described in Section 2(d),
the closing of the sale or other disposition of Corporation Common Stock or
other securities pursuant to such registration statement shall occur
substantially simultaneously with the exercise of the Option. The obligations
of the Corporation hereunder to file a registration statement and to maintain
its effectiveness may be suspended for one or more periods of time not
exceeding 90 days in the aggregate for all such periods (and such periods
being at least 15 days apart) if the Board of Directors of the Corporation
shall have determined that the filing of such registration statement or the
maintenance of its effectiveness would require disclosure of nonpublic
information that would materially and adversely affect the Corporation. Any
registration statement prepared and filed under this Section 7, and any sale
covered thereby, shall be at the Corporation's expense except for underwriting
discounts or commissions, brokers' fees and the fees and disbursements of the
Buyer's counsel related thereto. The Buyer shall provide all information
reasonably requested by the Corporation for inclusion in any registration
statement to be filed hereunder. In connection with any registration pursuant
to this Section 7, the Corporation and the Buyer shall provide each other and
any underwriter of the offering with customary representations, warranties,
covenants, indemnification and contribution in connection with such
registration. In the event of a Business Combination proper provision shall be
made in the definitive acquisition agreement executed in connection therewith
to provide that the acquiring party or successor party thereto shall be bound
by the provisions of this Section 7 as if such party was a signatory hereto.
 
 
                                      C-4
<PAGE>
 
  8. DIVISION OF OPTION. This Agreement and the Option granted hereby are
exchangeable, without expense, at the option of the Buyer upon partial exercise
of the Option or partial assignment of the Option, in both instances as
provided herein, upon presentation and surrender of this Agreement at the
principal office of the Corporation, for other Agreements providing for Options
of different denominations entitling the holder thereof to acquire in the
aggregate the same number of shares of Corporation Common Stock which may be
acquired hereunder. The terms "Agreement" and "Option" as used herein include
any other Agreements and related Options for which this Agreement and the
Option granted hereby may be exchanged.
 
  9. MISCELLANEOUS: (a) Expenses. Except as otherwise provided in the Merger
Agreement, each of the parties hereto shall bear and pay all costs and expenses
incurred by it or on its behalf in connection with the transactions
contemplated hereunder, including fees and expenses of its own counsel.
 
  (b) Waiver and Amendment. Any provision of this Agreement may be waived in
writing at any time by the party that is entitled to the benefits of such
provision. This Agreement may not be modified, amended, altered or supplemented
except upon the execution and delivery of a written agreement executed by the
parties hereto.
 
  (c) Entire Agreement; No Third-Party Beneficiary; Severability. Except as
otherwise set forth in the Merger Agreement, this Agreement (including other
documents and instruments referred to herein or therein) (i) constitutes the
entire agreement and supersedes all prior agreements and understandings, both
written and oral, between the parties with respect to the subject matter hereof
and (ii) is not intended to confer upon any person other than the parties
hereto any rights or remedies hereunder. If any term, provision, covenant or
restriction of this Agreement is held by a court of competent jurisdiction or a
Governmental Entity to be invalid, void or unenforceable, the remainder of the
terms, provisions, covenants and restrictions of this Agreement shall remain in
full force and effect and shall in no way be affected, impaired or invalidated.
 
  (d) Governing Law. This Agreement shall be governed by and construed in
accordance with the laws of the State of Delaware without regard to any
applicable conflicts of law rules.
 
  (e) Descriptive Headings. The descriptive headings contained herein are for
convenience of reference only and shall not affect in any way the meaning or
interpretation of this Agreement.
 
  (f) Notices. All notices and other communications hereunder shall be in
writing and shall be given by overnight courier, by delivering the same in
person, by telecopy (with confirmation) or by registered or certified mail
(return receipt requested) to the parties at the following addresses (or at
such other address for a party as shall be specified by like notice):
 
    If to the Buyer to:
 
      Sterling Software, Inc. 
      8080 N. Central Expressway, Suite 1100
      Dallas, Texas 75206 
      Telecopier No.: (214) 750-0905 
      Attention: President
 
    with a copy to:
 
      Jackson & Walker, L.L.P. 
      901 Main Street, Suite 6000 
      Dallas, Texas 75202 
      Telecopier No.: (214) 953-5822 
      Attention: Charles D. Maguire, Jr.
 
                                      C-5
<PAGE>
 
    If to the Corporation to:
 
      KnowledgeWare, Inc.
      3340 Peachtree Road, N.E. 
      Suite No. 1100 
      Atlanta, GA 30326
      Telecopier No.: (404) 364-0883 
      Attention: President
 
    with a copy to:
 
      Hicks, Maloof & Campbell
      Suite No. 2200, Marquis Two Tower
      285 Peachtree Center Ave., N.E.
      Atlanta, GA 30303 
      Telecopier No.: (404) 420-7474 
      Attention: Maurice N. Maloof
 
  Such notice shall be deemed delivered and received on the date on which it is
received if sent by overnight courier, hand-delivery or telecopy, or on the
fifth business day following the date on which it is so mailed.
 
  (g) Counterparts. This Agreement and any amendments hereto may be executed in
two counterparts, each of which shall be considered one and the same agreement
and shall become effective when both counterparts have been signed by each of
the parties and delivered to the other party, it being understood that both
parties need not sign the same counterpart.
 
  (h) Assignment. Neither this Agreement nor any of the rights, interests or
obligations hereunder or under the Option shall be assigned by the Corporation
(whether by operation of law or otherwise) without the prior written consent of
the Buyer. The Buyer may assign its rights, interests or obligations under this
Agreement or the Option to any person, including without limitation an
assignment of its rights under Section 7 of this Agreement in connection with
the sale of Corporation Common Stock to any purchaser thereof. Subject to the
first sentence of this Agreement, this Agreement shall be binding upon, inure
to the benefit of and be enforceable by the parties and their respective
successors and assigns.
 
  (i) Mutual Drafting. Each party hereto has participated in the drafting of
this Agreement, which each party acknowledges is the result of extensive
negotiations between the parties.
 
  (j) Further Assurances. In the event of any exercise of the Option by the
Buyer, the Corporation and the Buyer shall execute and deliver all other
documents and instruments and take all other action that may be reasonably
necessary in order to consummate the transactions provided for by such
exercise.
 
  (k) Specific Performance. The parties hereto agree that this Agreement may be
enforced by either party through specific performance, injunctive relief and
other equitable relief. Both parties further agree to waive any requirement for
the securing or posting of any bond in connection with the obtaining of any
such equitable relief and that this provision is without prejudice to any other
rights that the parties hereto may have for any failure to perform this
Agreement.
 
                                      C-6
<PAGE>
 
  IN WITNESS WHEREOF, the Corporation and the Buyer have caused this Stock
Option Agreement to be signed by their respective officers thereunto duly
authorized, all as of the date first written above.
 
                                          Knowledgeware, Inc.
 
                                                 
                                          By:    /s/ Francis A. Tarkenton
                                              ---------------------------------
                                                   Francis A. Tarkenton,
                                                 Chairman of the Board and 
                                                  Chief Executive Officer
 
                                          Sterling Software, Inc.
 
                                                 
                                          By:    /s/ Sterling L. Williams
                                              ---------------------------------
                                                   Sterling L. Williams,
                                                         President
 
                                      C-7
<PAGE>
 
                                                                      APPENDIX D
 
                   AMENDED AND RESTATED STOCKHOLDER AGREEMENT
 
  This AMENDED AND RESTATED STOCKHOLDER AGREEMENT (this "Agreement") is entered
into as of August 31, 1994 to be effective as of July 31, 1994, by and between
Sterling Software, Inc., a Delaware corporation (the "Buyer"), and the
stockholder listed on the signature page hereof (the "Stockholder").
 
  WHEREAS, the Stockholder, as of the date hereof, is the owner of the
respective number of shares (the "Shares") of Common Stock, no par value (the
"Common Stock"), of KnowledgeWare, Inc., a Georgia corporation (the
"Corporation") set forth below the name of the Stockholder on the signature
page hereof;
 
  WHEREAS, the Buyer and SSI Corporation, a Georgia corporation and a wholly-
owned subsidiary of the Buyer ("Merger Sub"), entered into an Agreement and
Plan of Merger with the Corporation dated as of July 31, 1994, and in reliance
in part upon the execution and delivery of this Agreement, the Buyer and Merger
Sub will enter into an Amended and Restated Agreement and Plan of Merger, dated
as of the date hereof (the "Merger Agreement;" capitalized terms not defined
herein shall have the meanings set forth in the Merger Agreement), with the
Corporation which provides that, among other things, upon the terms and subject
to the conditions thereof Merger Sub will be merged with and into the
Corporation, with the Corporation continuing as the surviving corporation and a
wholly-owned subsidiary of the Buyer (the "Merger"), and each outstanding share
of Common Stock, including the Shares, will, by reason of the Merger, be
converted into a fraction of a share of the Buyer's common stock, par value
$.10 per share (the "Buyer Common Stock"), that is equal to the Exchange Ratio
(subject to the provisions of the Merger Agreement);
 
  WHEREAS, in reliance upon the execution and delivery of this Agreement, the
Buyer will enter into an Amended and Restated Stock Option Agreement, dated as
of the date hereof (the "Stock Option Agreement"), with the Corporation
pursuant to which the Corporation has granted to the Buyer an option to acquire
shares of Common Stock upon the occurrence of certain events; and
 
  WHEREAS, to induce the Buyer to enter into the Merger Agreement and the Stock
Option Agreement and to incur the obligations set forth therein, the
Stockholder is entering into this Agreement pursuant to which the Stockholder
agrees to vote in favor of the Merger and certain other matters as set forth
herein, and to make certain agreements with respect to the Shares upon the
terms and conditions set forth herein.
 
  NOW THEREFORE, in consideration of the foregoing and of the mutual covenants
and agreement set forth herein and for other good and valuable consideration,
the receipt and adequacy of which are hereby acknowledged, the parties hereto
agree as follows:
 
  Section 1. VOTING OF SHARES; IRREVOCABLE PROXY. The Stockholder agrees that
until the earlier of (i) the Effective Time and (ii) the termination of the
Merger Agreement (the earlier of such dates being hereinafter referred to as
the "Expiration Date"), the Stockholder shall vote all Shares owned by the
Stockholder at any meeting of the Corporation's stockholders (whether annual or
special and whether or not an adjourned or postponed meeting), or, if
applicable, take action by written consent (x) for adoption of the Merger
Agreement and in favor of the Merger and any other transaction contemplated by
the Merger Agreement, as such Merger Agreement may be modified or amended from
time to time (but not to reduce the Exchange Ratio), (y) against any action,
omission or agreement which would impede or interfere with, or have the effect
of discouraging, the Merger, including, without limitation, any Acquisition
Proposal other than the Merger, and (z) in favor of all nominees in the
Corporation's slate of directors nominated for election by a majority of the
Corporation's non-management directors. Any such vote shall be cast or consent
shall be given in accordance with such procedures relating thereto as shall
ensure that it is duly counted for purposes of determining that a quorum is
present and for purposes of recording the results of such vote or consent.
 
 
                                      D-1
<PAGE>
 
  In the event that the Stockholder shall fail to comply with the provisions of
this Section 1 (as determined by the Buyer in its sole discretion), the
Stockholder hereby agrees that such failure shall result, without any further
action by the Stockholder, in the irrevocable appointment of the Buyer, until
termination of the Merger Agreement, as its attorney and proxy with full power
of substitution, to vote and otherwise act (by written consent or otherwise)
with respect to the Shares which the Stockholder is entitled to vote at any
meeting of stockholders of the Corporation (whether annual or special and
whether or not an adjourned or postponed meeting) or consent in lieu of any
such meeting or otherwise, on the matters and in the manner specified in
Section 1 above. THE STOCKHOLDER ACKNOWLEDGES THAT THIS PROXY IS COUPLED WITH
AN INTEREST, AND CONSTITUTES, AMONG OTHER THINGS, AN INDUCEMENT FOR THE BUYER
TO ENTER INTO THE MERGER AGREEMENT, IS IRREVOCABLE AND SHALL NOT BE TERMINATED
BY OPERATION OF LAW UPON THE OCCURRENCE OF ANY EVENT, INCLUDING, WITHOUT
LIMITATION, THE DEATH OR INCAPACITY OF THE STOCKHOLDER. Notwithstanding any
provision contained in such proxy, such proxy shall terminate upon the
Expiration Date.
 
  Section 2. COVENANTS OF THE STOCKHOLDER. The Stockholder covenants and agrees
for the benefit of the Buyer that, until the Expiration Date, it:
 
    (a) will not sell, transfer, pledge, hypothecate, encumber, assign,
  tender or otherwise dispose of, or enter into any contract, option or other
  arrangement or understanding with respect to the sale, transfer, pledge,
  hypothecation, encumbrance, assignment, tender or other disposition of (any
  one or more of which, a "Transfer"), any of the Shares owned by it unless,
  in connection with such Transfer, the transferee executes a counterpart of
  this Agreement agreeing to be bound by the terms hereof;
 
    (b) will, other than as expressly contemplated by this Agreement, not
  grant any powers of attorney or proxies or consents in respect of any of
  the Shares owned by it, deposit any of the Shares owned by it into a voting
  trust, enter into a voting agreement with respect to any of the Shares
  owned by it or otherwise restrict the ability of the holder of any of the
  Shares owned by it freely to exercise all voting rights with respect
  thereto except for powers of attorney granted in the ordinary course
  consistent with the terms of the Merger Agreement;
 
    (c) will not take any action which, if taken by the Corporation, would be
  prohibited by Section 7.1 of the Merger Agreement;
 
    (d) will use its best efforts to take, or cause to be taken, all action,
  and do, or cause to be done, all things necessary or advisable in order to
  consummate and make effective the transactions contemplated by this
  Agreement including, without limitation, to enter into an affiliate's
  letter substantially in the form of Annex A hereto; provided however, if
  the Stockholder is a director of the Corporation the provisions of this
  paragraph (d) are subject to the fiduciary duties such Stockholder has to
  the Corporation as a member of the Board of Directors; and
 
    (e) will not exercise any appraisal or dissenter's rights, if any, with
  respect to the Shares.
 
  Section 3. COVENANTS OF THE BUYER. The Buyer covenants and agrees for the
benefit of the Stockholder that (a) immediately upon execution of this
Agreement, the Buyer shall enter, and cause Merger Sub to enter, into the
Merger Agreement, and (b) until the Expiration Date, it shall use its best
efforts to take, or cause to be taken, all action, and do, or cause to be done,
all things necessary or advisable in order to consummate and make effective the
transactions contemplated by this Agreement and the Merger Agreement,
consistent with the terms and conditions of each such agreement.
 
  Section 4. REPRESENTATIONS AND WARRANTIES OF THE STOCKHOLDER. The Stockholder
represents and warrants to the Buyer that: (a) if applicable, the Stockholder
is a corporation duly organized, validly existing and in good standing under
the laws of its jurisdiction of organization; (b) the execution, delivery and
performance by the Stockholder of this Agreement will not conflict with,
require a consent, waiver or approval under, or result in a breach or a default
under, its Certificate of Incorporation or By-laws (if applicable), or any of
the terms of any contract, commitment or other obligations (written or oral) to
which
 
                                      D-2
<PAGE>
 
the Stockholder is bound, which breach would result in a material adverse
effect on the Stockholder; (c) this Agreement has been duly executed and
delivered by the Stockholder and constitutes a valid and binding obligation of
the Stockholder, enforceable against the Stockholder in accordance with its
terms; (d) if applicable, the execution, delivery and performance of this
Agreement and the consummation by it of the transactions contemplated hereby
have been approved by all necessary corporate action on its part; (e) other
than as set forth herein, the Stockholder has not entered into an irrevocable
proxy with respect to the Shares.
 
  The representations and warranties contained herein shall be made as of the
date hereof and as of each date from the date hereof through and including the
Closing.
 
  Section 5. ADJUSTMENTS; ADDITIONAL SHARES. In the event (i) of any stock
dividend, stock split, recapitalization, reclassification, combination or
exchange of shares of capital stock of the Corporation on, of or affecting the
Shares, or (ii) the Stockholder shall acquire voting rights with respect to any
additional shares of Common Stock or other securities of the Corporation,
including any securities entitling the holder hereof to vote or give consent
with respect to the matters set forth in Section 1 hereof but excluding shares
of Common Stock of the Corporation as to which the holders thereof have granted
revocable proxies to the Stockholder in connection with the shareholders
meeting of the Corporation contemplated by Section 7.4 of the Merger Agreement,
then the terms of this Agreement shall apply to the shares of capital stock
held by the Stockholder immediately following the effectiveness of the events
described in clause (i) or the Stockholder becoming the beneficial owner
thereof, as described in clause (ii), as though they were Shares hereunder. As
soon as practicable after the receipt of such other capital stock or
securities, the Stockholder shall surrender to the Corporation all certificates
or instruments representing such for the purpose of affixing the legend set
forth in Section 6 hereof.
 
  Section 6. SPECIFIC PERFORMANCE. The Stockholder acknowledges that the
agreements contained in this Agreement are an integral part of the transactions
contemplated by the Merger Agreement and the Stock Option Agreement and that,
without these agreements, the Buyer and Merger Sub would not enter into the
Merger Agreement or the Stock Option Agreement, and acknowledges that damages
would be an inadequate remedy for any breach by it of the provisions of this
Agreement. Accordingly, the Stockholder and the Buyer each agree that the
obligations of the parties hereunder shall be specifically enforceable and
neither party shall take any action to impede the other from seeking to enforce
such right of specific performance. Both parties further agree to waive any
requirement for the securing or posting of any bond in connection with the
obtaining of any such equitable relief and that this provision is without
prejudice to any other rights that the parties hereto may have for any failure
to perform this Agreement.
 
  Section 7. NOTICES. All notices, requests, claims, demands and other
communications hereunder shall be in writing and shall be given by overnight
courier, by delivering the same in person, by telecopy (with confirmation), or
by registered or certified mail (return receipt requested) to the Stockholder
at the address listed on the signature page hereof, with a copy to Hicks,
Maloof & Campbell, Suite 2200, Marquis Two Tower, 285 Peachtree Center Avenue,
N.E., Atlanta, Georgia 30303, Attention: Maurice N. Maloof, facsimile number
(404) 420-7474, and to the Buyer at 8080 N. Central Expressway, Suite 1100,
Dallas, Texas 75206, Attention: President, facsimile number (214) 750-0905,
with a copy to Jackson & Walker, L.L.P., 901 Main Street, Suite 6000, Dallas,
Texas 75202, Attention: Charles D. Maguire, Jr., Facsimile number
(214) 953-5822, or to such other address as any party may have furnished to the
other in writing in accordance herewith. Any such notice shall be deemed
delivered and received on the date on which it is received if sent by overnight
courier, hand-delivered or telecopy, or on the fifth business day following the
date on which it is so mailed.
 
  Section 8. BINDING EFFECT; SURVIVAL. Upon execution and delivery of this
Agreement by the Buyer, this Agreement shall become effective as to the
Stockholder at the time the Stockholder executes and delivers this Agreement.
This Agreement shall inure to the benefit of and be binding upon the parties
hereto and their respective heirs, personal representatives, successors and
assigns.
 
 
                                      D-3
<PAGE>
 
  Section 9. ASSIGNMENT. The Buyer may, without the consent of the Stockholder,
assign its rights hereunder to any direct or indirect wholly owned subsidiary
of the Buyer, provided that any such assignment shall not affect the
obligations of the Buyer hereunder.
 
  Section 10. GOVERNING LAW. This Agreement shall be governed by and construed
in accordance with the laws of the State of Delaware without regard to its
rules of conflict of laws.
 
  Section 11. COUNTERPARTS. This Agreement may be executed in several
counterparts, each of which shall be an original, but all of which together
shall constitute one and the same agreement.
 
  Section 12. EFFECT OF HEADINGS. The section headings herein are for
convenience only and shall not affect the construction hereof.
 
  Section 13. ADDITIONAL AGREEMENTS; FURTHER ASSURANCE. Subject to the terms
and conditions herein provided, each of the parties hereto agrees to use all
reasonable efforts to take, or cause to be taken, all action and to do, or
cause to be done, all things necessary, proper or advisable to consummate and
make effective the transactions contemplated by this Agreement. The Stockholder
will provide the Buyer with all documents which may reasonably be requested by
the Buyer and will take reasonable steps to enable the Buyer to obtain all
rights and benefits provided it hereunder.
 
  Section 14. AMENDMENT; WAIVER. No amendment or waiver of any provision of
this Agreement or consent to departure therefrom shall be effective unless in
writing and signed by the Buyer and the Stockholder, in the case of an
amendment, or by the party which is the beneficiary of any such provision, in
the case of waiver or a consent to departure therefrom.
 
  IN WITNESS WHEREOF, this Agreement has been duly executed by the parties
hereto all as of the day and year first above written.
 
                                          STERLING SOFTWARE, INC.
 
                                          By: _________________________________
                                          Name: _______________________________
                                          Title: ______________________________
 
STOCKHOLDER:
 
By: _____________________________
 Name: _________________________
 Title: ________________________
 
Address:
 
Number of Shares:
 
 
                                      D-4
<PAGE>
 
                                    PART II
 
                     INFORMATION NOT REQUIRED IN PROSPECTUS
 
ITEM 20. INDEMNIFICATION OF DIRECTORS AND OFFICERS.
 
  Section 145 of the Delaware General Corporation Law empowers a corporation to
indemnify its directors and officers or former directors and officers and to
purchase insurance with respect to liability arising out of their capacity or
status as directors and officers. Such law provides further that the
indemnification permitted thereunder shall not be deemed exclusive of any other
rights to which the directors and officers may be entitled under the
corporation's certificate of incorporation, bylaws, any agreement or otherwise.
 
  Article IX of the Registrant's Certificate of Incorporation, as amended,
provides that, to the fullest extent permitted by the Delaware General
Corporation Law, as the same exists or may hereafter be amended, a director of
the Registrant shall not be liable to the Registrant or its stockholders for
monetary damages for breach of fiduciary duty as a director. Article IX of the
Registrant's Restated Bylaws provides for indemnification of officers and
directors. In addition, the Registrant has entered into Indemnity Agreements
with each of its officers and directors pursuant to which such officers and
directors may be indemnified against losses arising from certain claims,
including claims under the Securities Act of 1933, as amended (the "Securities
Act"), which may be made by reason of their being officers or directors.
 
  Insofar as indemnification for liabilities arising under the Securities Act
may be permitted to directors, officers or persons controlling the Registrant
pursuant to the foregoing provisions, the Registrant has been advised that in
the opinion of the Commission such indemnification is against public policy as
expressed in the Securities Act and is therefore unenforceable.
 
ITEM 21. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES.
 
  The following is a list of all exhibits filed as a part of this Registration
Statement on Form S-4, including those incorporated herein by reference.
 
<TABLE>
<CAPTION>
   EXHIBIT
   NUMBER                         DESCRIPTION OF EXHIBIT
   -------                        ----------------------
   <C>     <S>
     1     None
     2.1   Amended and Restated Agreement and Plan of Merger dated as of August
            31, 1994 among the Registrant, KnowledgeWare, Inc. and SSI
            Corporation (included as Appendix A to the Proxy
            Statement/Prospectus that forms a part of this Registration
            Statement) (1)
     2.2   Agreement dated October 11, 1994 among the Registrant,
            KnowledgeWare, Inc. and SSI Corporation (1)
     2.3   First Amendment to Amended and Restated Agreement and Plan of Merger
            dated as of October 24, 1994 among the Registrant, KnowledgeWare,
            Inc. and SSI Corporation (1)
     3.1   Certificate of Incorporation of the Registrant (2)
     3.2   Certificate of Amendment of Certificate of Incorporation of the
            Registrant (3)
     3.3   Certificate of Amendment of Certificate of Incorporation of the
            Registrant (4)
     3.4   Restated Bylaws of the Registrant (5)
     4.1   Form of Common Stock Certificate (6)
     5     Opinion of Jackson & Walker, L.L.P. (1)
     6     None
     7     None
     8.1   Opinion of Jackson & Walker, L.L.P. (1)
     8.2   Opinion of Hicks, Maloof & Campbell (1)
     9     None
    10.1   Amended and Restated Stock Option Agreement dated as of August 31,
            1994 between the Registrant and KnowledgeWare, Inc. (included as
            Appendix C to the Proxy Statement/Prospectus that forms a part of
            this Registration Statement) (1)
</TABLE>
 
 
                                      II-1
<PAGE>
 
<TABLE>
<CAPTION>
   EXHIBIT
   NUMBER                         DESCRIPTION OF EXHIBIT
   -------                        ----------------------
   <C>     <S>
    10.2   Form of Amended and Restated Stockholder Agreement dated as of
            August 31, 1994 between the Registrant and certain stockholders of
            KnowledgeWare, Inc. (included as Appendix D to the Proxy
            Statement/Prospectus that forms a part of this Registration
            Statement) (1)
    10.3   Form of Registration Rights Agreement to be entered into among the
            Registrant and certain affiliates of KnowledgeWare, Inc. (included
            as an exhibit to the Amended and Restated Agreement and Plan of
            Merger filed as part of the Proxy Statement/Prospectus that forms
            a part of this Registration Statement) (1)
    10.4   Form of Escrow Agreement to be entered into among the Registrant,
            KnowledgeWare, Inc., the Representative and the Escrow Agent
            (included as an exhibit to the Amended and Restated Agreement and
            Plan of Merger filed as part of the Proxy Statement/ Prospectus
            that forms a part of this Registration Statement) (1)
    10.5   Amended Incentive Stock Option Plan of the Registrant (7)
    10.6   Amended Non-Statutory Stock Option Plan of the Registrant (7)
    10.7   Supplemental Executive Retirement Plan II of Informatics General
            Corporation (3)
    10.8   Form of Supplemental Executive Retirement Plan II Agreement (the
            "SERP II Agreement") (3)
    10.9   Amendment to SERP II Agreement (3)
    10.10  Form of Employment Agreement with Jeannette P. Meier, George H.
            Ellis and Phillip A. Moore (3)
    10.11  Form of Amendment No. 1 to Employment Agreement with Jeannette P.
            Meier, George H. Ellis and Phillip A. Moore (3)
    10.12  Employment Agreement with Sam Wyly (3)
    10.13  Employment Agreement with Charles J. Wyly, Jr. (3)
    10.14  Employment Agreement with Sterling L. Williams (3)
    10.15  Form of Amendment No. 1 to Employment Agreement with Charles J.
            Wyly, Jr. and Sterling L. Williams (3)
    10.16  Amendment No. 1 to Employment Agreement with Sam Wyly (3)
    10.17  Amendment No. 2 to Employment Agreement with Sam Wyly (3)
    10.18  Consultation Agreement with REC Enterprises, Inc. (3)
    10.19  Employment Agreement with William D. Plumb (3)
    10.20  Employment Agreement with William D. Plumb (3)
    10.21  Form of Employment Agreement with Edward J. Lott, Warner C. Blow,
            Werner L. Frank and Geno P. Tolari (3)
    10.22  Employment Agreement with Sterling L. Williams (8)
    10.23  Form of Employment Agreement with Jeanette P. Meier, George H.
            Ellis, Phillip A. Moore, Warner C. Blow and Geno P. Tolari (8)
    10.24  Employment Agreement with Werner L. Frank (8)
    10.25  Form of Series B Warrant Agreement (3)
    10.26  Form of Amendment to Series B Warrant Agreement (January 1988) (3)
    10.27  Form of Amendment to Series B Warrant Agreement (May 1989) (3)
    10.28  Form of Series E Warrant Agreement (3)
    10.29  Form of Amendment to Series E Warrant Agreement (May 1989) (3)
    10.30  Form of Series F Warrant Agreement (3)
</TABLE>
 
 
                                      II-2
<PAGE>
 
<TABLE>
<CAPTION>
   EXHIBIT
   NUMBER                         DESCRIPTION OF EXHIBIT
   -------                        ----------------------
   <C>     <S>
    10.31  Form of Amendment to Series F Warrant Agreement (May 1989) (3)
    10.32  Amended and Restated Revolving Credit and Term Loan Agreement dated
            June 8, 1990 between the Registrant and The First National Bank of
            Boston and BankOne Texas N.A. ("Loan Agreement") (3)
    10.33  First Amendment to Loan Agreement dated as of October 16, 1990 (3)
    10.34  Second Amendment to Loan Agreement dated as of September 19, 1991
            (3)
    10.35  Third Amendment to Loan Agreement dated as of December 31, 1991 (3)
    10.36  Fourth Amendment to Loan Agreement dated as of June 15, 1992 (3)
    10.37  Fifth Amendment to Loan Agreement dated as of July 31, 1992 (3)
    10.38  Sixth Amendment to Loan Agreement dated as of August 31, 1992 (3)
    10.39  Seventh Amendment to Loan Agreement dated as of September 9, 1992
            (3)
    10.40  Eighth Amendment to Loan Agreement dated as of September 30, 1992
            (3)
    10.41  Ninth Amendment to Loan Agreement dated as of October 13, 1992 (3)
    10.42  Tenth Amendment to Loan Agreement dated as of December 17, 1992 (8)
    10.43  Form of Eleventh Amendment to Loan Agreement dated as of March 29,
            1993 (3)
    10.44  Twelfth Amendment to Loan Agreement dated as of June 30, 1993 (3)
    10.45  Form of Thirteenth Amendment to Loan Agreement dated as of November
            10, 1993 (3)
    10.46  Form of Fourteenth Amendment to Loan Agreement dated as of November
            22, 1993 (3)
    10.47  Fifteenth Amendment to Loan Agreement dated as of December 21, 1993
            (9)
    10.48  Sixteenth Amendment to Loan Agreement dated as of December 30, 1993
            (9)
    10.49  Seventeenth Amendment to Loan Agreement dated as of January 31, 1994
            (9)
    10.50  Eighteenth Amendment to Loan Agreement dated as of March 15, 1994
            (10)
    10.51  Nineteenth Amendment to Loan Agreement dated as of May 17, 1994 (7)
    10.52  Form of Indenture between the Registrant and Bank of America Texas,
            National Association as Trustee, including the form of 5 3/4%
            Convertible Subordinated Debenture attached as Exhibit A thereto
            (11)
    10.53  1992 Executive Compensation Plan for Group Presidents (3)
    10.54  1993 Executive Compensation Plan for Group Presidents (8)
    10.55  1994 Executive Compensation Plan for Group Presidents (3)
    10.56  Form of Series G Warrant Agreement (3)
    10.57  Amended 1992 Non-Statutory Stock Option Plan (12)
    10.58  1994 Non-Statutory Stock Option Plan (13)
    10.59  Form of Indemnity Agreement between the Registrant and each of its
            directors (3)
    10.60  Systems Center, Inc. Restated and Amended Restricted Stock Plan (15)
    10.61  Systems Center, Inc. Amended and Restated Nondiscretionary
            Restricted Stock Plan (15)
    10.62  Systems Center, Inc. 1982 Stock Option Plan (15)
    10.63  Systems Center, Inc. 1992 Stock Incentive Plan (15)
    10.64  Systems Center, Inc. 1983 Stock Plan (15)
    10.65  Systems Center, Inc. Share Option Scheme (15)
    10.66  Registration Rights Agreement dated as of July 1, 1993 among the
            Registrant and the Selling Stockholders named therein(14)
    10.67  Assignment of Loan Documents and Security Interests dated as of
            August 31, 1994 among the Registrant, IBM Credit Corporation and
            KnowledgeWare, Inc. (1)
    10.68  Amended and Restated Revolving Loan and Security Agreement dated as
            of August 31, 1994 between the Registrant and KnowledgeWare, Inc.
            (1)
</TABLE>
 
                                      II-3
<PAGE>
 
<TABLE>
<CAPTION>
   EXHIBIT
   NUMBER                         DESCRIPTION OF EXHIBIT
   -------                        ----------------------
   <C>     <S>
    10.69  Warrant Agreement dated as of August 31, 1994 between the Registrant
            and KnowledgeWare, Inc. (1)
    10.70  Registration Rights Agreement dated as of August 31, 1994 between
            the Registrant and KnowledgeWare, Inc. (1)
    10.71  First Amendment to Amended and Restated Revolving Loan and Security
            Agreement dated as of October 25, 1994 between the Registrant and
            KnowledgeWare, Inc. (1)
    11     None
    12     None
    13     None
    14     None
    15     None
    16     None
    21     Subsidiaries (1)
    23.1   Consent of Ernst & Young L.L.P. (1)
    23.2   Consent of Arthur Andersen LLP(1)
    23.3   Consent of Coopers & Lybrand, L.L.P. (1)
    23.4   Consent of Alex. Brown & Sons Incorporated (1)
    23.5   Consent of Jackson & Walker, L.L.P. (included in its opinions filed
            as Exhibits 5 and 8 to this Registration Statement) (1)
    23.6   Consent of Hicks, Maloof & Campbell, A Professional Corporation (1)
    24     Power of Attorney (1) (Appearing on page II-7 of this Registration
            Statement)
    25     None
    26     None
    27     None
    28     None
    99     Form of Proxy Card (1)
</TABLE>
- --------
 (1) Filed herewith.
 (2) Previously filed as an exhibit to the Registrant's Registration Statement
     No. 2-82506 on Form S-1 and incorporated herein by reference.
 (3) Previously filed as an exhibit to the Registrant's Annual Report on Form
     10-K for the fiscal year ended September 30, 1993 and incorporated herein
     by reference.
 (4) Previously filed as an exhibit to the Registrant's Registration Statement
     No. 33-69926 on Form S-8 and incorporated herein by reference
 (5) Previously filed as an exhibit to the Registrant's Registration Statement
     No. 33-47131 on Form S-8 and incorporated herein by reference.
 (6) Previously filed as an exhibit to the Registrant's Registration Statement
     No. 2-86825 on Form S-1 and incorporated herein by reference.
 (7) Previously filed as an exhibit to the Registrant's Quarterly Report on
     Form 10-Q for the fiscal quarter ended June 30, 1994 and incorporated
     herein by reference.
 (8) Previously filed as an exhibit to the Registrant's Registration Statement
     No. 33-62028 on Form S-4 and incorporated herein by reference.
 (9) Previously filed as an exhibit to the Registrant's Quarterly Report on
     Form 10-Q for the fiscal quarter ended December 31, 1993 and incorporated
     herein by reference.
(10) Previously filed as an exhibit to the Registrant's Quarterly Report on
     Form 10-Q for the fiscal quarter ended March 31, 1994 and incorporated
     herein by reference.
(11) Previously filed as an exhibit to the Registrant's Registration Statement
     No. 33-57428 on Form S-3 and incorporated herein by reference.
 
                                      II-4
<PAGE>
 
(12) Previously filed as an exhibit to the Registrant's Registration Statement
     No 33-53831 on Form S-3 and incorporated herein by reference.
(13) Previously filed as an exhibit to the Registrant's Registration Statement
     No. 33-53837 on Form S-3 and incorporated herein by reference.
(14) Previously filed as an exhibit to the Registrant's Registration Statement
     No. 33-71706 on Form S-3 and incorporated herein by reference.
(15) Previously filed as an exhibit to the Registrant's Registration Statement
     No. 33-65402 on Form S-8 and incorporated herein by reference.
 
ITEM 22. UNDERTAKINGS.
 
  (a) The undersigned Registrant hereby undertakes:
 
    (1) To file, during any period in which offers or sales are being made, a
  post-effective amendment to this registration statement:
 
      (i) To include any prospectus required by section 10(a)(3) of the
    Securities Act;
 
      (ii) To reflect in the prospectus any facts or events arising after
    the effective date of the registration statement (or the most recent
    post-effective amendment thereof) which, individually or in the
    aggregate, represent a fundamental change in the information set forth
    in the registration statement;
 
      (iii) To include any material information with respect to the plan of
    distribution not previously disclosed in the registration statement or
    any material change to such information in the registration statement;
 
    Provided, however, that paragraphs (a)(1)(i) and (a)(1)(ii) do not apply
  if the information required to be included in a post-effective amendment by
  those paragraphs is contained in periodic reports filed by the Registrant
  pursuant to Section 13 or Section 15(d) of the Exchange Act that are
  incorporated by reference in this registration statement.
 
    (2) That, for the purpose of determining any liability under the
  Securities Act, each such post-effective amendment shall be deemed to be a
  new registration statement relating to the securities offered therein, and
  the offering of such securities at that time shall be deemed to be the
  initial bona fide offering thereof.
 
    (3) To remove from registration by means of a post-effective amendment
  any of the securities being registered which remain unsold at the
  termination of the offering.
 
  (b) The undersigned Registrant hereby undertakes that, for purposes of
determining any liability under the Securities Act, each filing of the
Registrant's annual report pursuant to Section 13(a) or Section 15(d) of the
Securities Exchange Act of 1934 that is incorporated by reference in the
Registration Statement shall be deemed to be a new registration statement
relating to the securities offered therein, and the offering of such securities
at that time shall be deemed to be the initial bona fide offering thereof.
 
  (c) (1) The undersigned Registrant hereby undertakes as follows: that prior
to any public reoffering of the securities registered hereunder through use of
a prospectus which is a part of this registration statement, by any person or
party who is deemed to be an underwriter within the meaning of Rule 145(c), the
issuer undertakes that such reoffering prospectus will contain the information
called for by the applicable registration form with respect to reofferings by
persons who may be deemed underwriters, in addition to the information called
for by the other Items of the applicable form.
 
  (2) The Registrant undertakes that every prospectus (i) that is filed
pursuant to paragraph (1) immediately preceding, or (ii) that purports to meet
the requirements of section 10(a)(3) of the Securities Act and is used in
connection with an offering of securities subject to Rule 415, will be filed as
part of an amendment to the Registration Statement and will not be used until
such amendment is effective, and that,
 
                                      II-5
<PAGE>
 
for purposes of determining any liability under the Securities Act, each such
post-effective amendment shall be deemed to be a new registration statement
relating to the securities offered therein, and the offering of such securities
at that time shall be deemed to be the initial bona fide offering thereof.
 
  (d) Insofar as indemnification for liabilities arising under the Securities
Act may be permitted to directors, officers and controlling persons of the
Registrant pursuant to the foregoing provisions, or otherwise, the Registrant
has been advised that in the opinion of the Securities and Exchange Commission
such indemnification is against public policy as expressed in the Securities
Act and is, therefore, unenforceable. In the event that a claim for
indemnification against such liabilities (other than the payment by the
Registrant of expenses incurred or paid by a director, officer or controlling
person of the Registrant in the successful defense of any action, suit or
proceeding) is asserted by such director, officer or controlling person in
connection with the securities being registered, the Registrant will, unless in
the opinion of its counsel the matter has been settled by controlling
precedent, submit to a court of appropriate jurisdiction the question whether
such indemnification by it is against public policy as expressed in the
Securities Act and will be governed by the final adjudication of such issue.
 
  (e) The undersigned Registrant hereby undertakes to respond to requests for
information that is incorporated by reference into the Prospectus pursuant to
Items 4, 10(b), 11 or 13 of this Form, within one business day of receipt of
such request, and to send the incorporated documents by first class mail or
other equally prompt means. This includes information contained in documents
filed subsequent to the effective date of the Registration Statement through
the date of responding to the request.
 
  (f) The undersigned Registrant hereby undertakes to supply by means of a
post-effective amendment all information concerning a transaction, and the
company being acquired involved therein, that was not the subject of and
included in the Registration Statement when it became effective.
 
                                      II-6
<PAGE>
 
                               POWER OF ATTORNEY
 
  Each person whose signature appears below authorizes Sterling L. Williams,
George H. Ellis and Jeannette P. Meier, and each of them, each of whom may act
without joinder of the others, to execute in the name of each such person who
is then an officer or director of the Registrant and to file any amendments to
this Registration Statement necessary or advisable to enable the Registrant to
comply with the Securities Act of 1933, as amended, and any rules, regulations
and requirements of the Securities and Exchange Commission, in respect thereof,
in connection with the registration of the securities which are the subject of
this Registration Statement, which amendments may make such changes in the
Registration Statement as such attorney may deem appropriate.
 
                                   SIGNATURES
 
  PURSUANT TO THE REQUIREMENTS OF THE SECURITIES ACT OF 1933, AS AMENDED, THE
REGISTRANT CERTIFIES THAT IT HAS REASONABLE GROUNDS TO BELIEVE THAT IT MEETS
ALL OF THE REQUIREMENTS FOR FILING ON FORM S-4 AND HAS DULY CAUSED THIS
REGISTRATION STATEMENT TO BE SIGNED ON ITS BEHALF BY THE UNDERSIGNED, THEREUNTO
DULY AUTHORIZED IN THE CITY OF DALLAS, STATE OF TEXAS ON THE 24TH DAY OF
OCTOBER, 1994.
 
                                          Sterling Software, Inc.
 
                                                   
                                          By:      /s/ Jeannette P. Meier
                                              ---------------------------------
                                                    
                                          Name:     Jeannette P. Meier
                                                -------------------------------
                                                 
                                          Title:   Executive Vice President
                                                 ------------------------------
 
                                      II-7
<PAGE>
 
                                   SIGNATURES
 
  PURSUANT TO THE REQUIREMENTS OF THE SECURITIES ACT OF 1933, AS AMENDED, THIS
REGISTRATION STATEMENT HAS BEEN SIGNED BY THE FOLLOWING PERSONS IN THE
CAPACITIES AND ON THE DATES INDICATED.
 
             SIGNATURES                         TITLE                DATE
 
      /s/ Sterling L. Williams          President, Chief        October 24, 1994
- -------------------------------------    Executive Officer           
        STERLING L. WILLIAMS             and Director
                                         (Principal
                                         Executive Officer)
 
         /s/ George H. Ellis            Executive Vice          October 24, 1994
- -------------------------------------    President and Chief          
           GEORGE H. ELLIS               Financial Officer
                                         (Principal
                                         Financial and
                                         Accounting Officer)
 
            /s/ Sam Wyly                Chairman of the         October 24, 1994
- -------------------------------------    Board of Directors          
              SAM WYLY
 
      /s/ Charles J. Wyly, Jr.          Vice Chairman of the    October 24, 1994
- -------------------------------------    Board of Directors          
        CHARLES J. WYLY, JR.
 
          /s/ Evan A. Wyly              Director                October 24, 1994
- -------------------------------------                                
            EVAN A. WYLY
 
        /s/ Michael C. French           Director                October 24, 1994
- -------------------------------------                                
          MICHAEL C. FRENCH
 
       /s/ Robert J. Donachie           Chairman of the         October 24, 1994
- -------------------------------------    Audit Committee and        
         ROBERT J. DONACHIE              Director
 
        /s/ Phillip A. Moore            Executive Vice          October 24, 1994
- -------------------------------------    President,                  
          PHILLIP A. MOORE               Technology and
                                         Director
 
                                      II-8
<PAGE>
 
             SIGNATURES                         TITLE                DATE
 
         /s/ Robert E. Cook             Director                October 24, 1994
- -------------------------------------                                
           ROBERT E. COOK
 

      /s/ Donald R. Miller, Jr.         Director                October 24, 1994
- -------------------------------------                                
        DONALD R. MILLER, JR.
 
                                      II-9
<PAGE>
 
                                 EXHIBIT INDEX
<TABLE>
<CAPTION>
                                                                   SEQUENTIALLY
   EXHIBIT                                                           NUMBERED
   NUMBER                  DESCRIPTION OF EXHIBIT                     PAGES
   -------                 ----------------------                  ------------
   <C>     <S>                                                     <C>
     1     --None
     2.1   --Amended and Restated Agreement and Plan of Merger
             dated as of August 31, 1994 among the Registrant,
             KnowledgeWare, Inc. and SSI Corporation (included as
             Appendix A to the Proxy Statement/Prospectus that
             forms a part of this Registration Statement) (1)
     2.2   --Agreement dated October 11, 1994 among the
             Registrant, KnowledgeWare, Inc. and SSI Corporation
             (1)
     2.3   --First Amendment to Amended and Restated Agreement
             and Plan of Merger dated as of October 24, 1994
             among the Registrant, KnowledgeWare, Inc. and SSI
             Corporation (1)
     3.1   --Certificate of Incorporation of the Registrant (2)
     3.2   --Certificate of Amendment of Certificate of
             Incorporation of the Registrant (3)
     3.3   --Certificate of Amendment of Certificate of
             Incorporation of the Registrant (4)
     3.4   --Restated Bylaws of the Registrant (5)
     4.1   --Form of Common Stock Certificate (6)
     5     --Opinion of Jackson & Walker, L.L.P. (1)
     6     --None
     7     --None
     8.1   --Opinion of Jackson & Walker, L.L.P. (1)
     8.2   --Opinion of Hicks, Maloof & Campbell (1)
     9     --None
    10.1   --Amended and Restated Stock Option Agreement dated
             as of August 31, 1994 between the Registrant and
             KnowledgeWare, Inc. (included as Appendix C to the
             Proxy Statement/Prospectus that forms a part of this
             Registration Statement) (1)
    10.2   --Form of Amended and Restated Stockholder Agreement
             dated as of August 31, 1994 between the Registrant
             and certain stockholders of KnowledgeWare, Inc.
             (included as Appendix D to the Proxy
             Statement/Prospectus that forms a part of this
             Registration Statement) (1)
    10.3   --Form of Registration Rights Agreement to be entered
             into among the Registrant and certain affiliates of
             KnowledgeWare, Inc. (included as an exhibit to the
             Amended and Restated Agreement and Plan of Merger
             filed as part of the Proxy Statement/Prospectus that
             forms a part of this Registration Statement) (1)
    10.4   --Form of Escrow Agreement to be entered into among
             the Registrant, KnowledgeWare, Inc., the
             Representative and the Escrow Agent (included as an
             exhibit to the Amended and Restated Agreement and
             Plan of Merger filed as part of the Proxy Statement/
             Prospectus that forms a part of this Registration
             Statement) (1)
    10.5   --Amended Incentive Stock Option Plan of the
             Registrant (7)
    10.6   --Amended Non-Statutory Stock Option Plan of the
             Registrant (7)
    10.7   --Supplemental Executive Retirement Plan II of
             Informatics General Corporation (3)
</TABLE>
<PAGE>
 
<TABLE>
<CAPTION>
                                                                   SEQUENTIALLY
   EXHIBIT                                                           NUMBERED
   NUMBER                  DESCRIPTION OF EXHIBIT                     PAGES
   -------                 ----------------------                  ------------
   <C>     <S>                                                     <C>
    10.8   --Form of Supplemental Executive Retirement Plan II
             Agreement (the "SERP II Agreement") (3)
    10.9   --Amendment to SERP II Agreement (3)
    10.10  --Form of Employment Agreement with Jeannette P.
             Meier, George H. Ellis and Phillip A. Moore (3)
    10.11  --Form of Amendment No. 1 to Employment Agreement
             with Jeannette P. Meier, George H. Ellis and Phillip
             A. Moore (3)
    10.12  --Employment Agreement with Sam Wyly (3)
    10.13  --Employment Agreement with Charles J. Wyly, Jr. (3)
    10.14  --Employment Agreement with Sterling L. Williams (3)
    10.15  --Form of Amendment No. 1 to Employment Agreement
             with Charles J. Wyly, Jr. and Sterling L. Williams
             (3)
    10.16  --Amendment No. 1 to Employment Agreement with Sam
             Wyly (3)
    10.17  --Amendment No. 2 to Employment Agreement with Sam
             Wyly (3)
    10.18  --Consultation Agreement with REC Enterprises, Inc.
             (3)
    10.19  --Employment Agreement with William D. Plumb (3)
    10.20  --Employment Agreement with William D. Plumb (3)
    10.21  --Form of Employment Agreement with Edward J. Lott,
             Warner C. Blow, Werner L. Frank and Geno P. Tolari
             (3)
    10.22  --Employment Agreement with Sterling L. Williams (8)
    10.23  --Form of Employment Agreement with Jeanette P.
             Meier, George H. Ellis, Phillip A. Moore, Warner C.
             Blow and Geno P. Tolari (8)
    10.24  --Employment Agreement with Werner L. Frank (8)
    10.25  --Form of Series B Warrant Agreement (3)
    10.26  --Form of Amendment to Series B Warrant Agreement
             (January 1988) (3)
    10.27  --Form of Amendment to Series B Warrant Agreement
             (May 1989) (3)
    10.28  --Form of Series E Warrant Agreement (3)
    10.29  --Form of Amendment to Series E Warrant Agreement
             (May 1989) (3)
    10.30  --Form of Series F Warrant Agreement (3)
    10.31  --Form of Amendment to Series F Warrant Agreement
             (May 1989) (3)
    10.32  --Amended and Restated Revolving Credit and Term Loan
             Agreement dated June 8, 1990 between the Registrant
             and The First National Bank of Boston and BankOne
             Texas N.A. ("Loan Agreement") (3)
    10.33  --First Amendment to Loan Agreement dated as of
             October 16, 1990 (3)
    10.34  --Second Amendment to Loan Agreement dated as of
             September 19, 1991 (3)
    10.35  --Third Amendment to Loan Agreement dated as of
             December 31, 1991 (3)
    10.36  --Fourth Amendment to Loan Agreement dated as of June
             15, 1992 (3)
</TABLE>
<PAGE>
 
<TABLE>
<CAPTION>
                                                                   SEQUENTIALLY
   EXHIBIT                                                           NUMBERED
   NUMBER                  DESCRIPTION OF EXHIBIT                     PAGES
   -------                 ----------------------                  ------------
   <C>     <S>                                                     <C>
    10.37  --Fifth Amendment to Loan Agreement dated as of July
             31, 1992 (3)
    10.38  --Sixth Amendment to Loan Agreement dated as of
             August 31, 1992 (3)
    10.39  --Seventh Amendment to Loan Agreement dated as of
             September 9, 1992 (3)
    10.40  --Eighth Amendment to Loan Agreement dated as of
             September 30, 1992 (3)
    10.41  --Ninth Amendment to Loan Agreement dated as of
             October 13, 1992 (3)
    10.42  --Tenth Amendment to Loan Agreement dated as of
             December 17, 1992 (8)
    10.43  --Form of Eleventh Amendment to Loan Agreement dated
             as of March 29, 1993 (3)
    10.44  --Twelfth Amendment to Loan Agreement dated as of
             June 30, 1993 (3)
    10.45  --Form of Thirteenth Amendment to Loan Agreement
             dated as of November 10, 1993 (3)
    10.46  --Form of Fourteenth Amendment to Loan Agreement
             dated as of November 22, 1993 (3)
    10.47  --Fifteenth Amendment to Loan Agreement dated as of
             December 21, 1993 (9)
    10.48  --Sixteenth Amendment to Loan Agreement dated as of
             December 30, 1993 (9)
    10.49  --Seventeenth Amendment to Loan Agreement dated as of
             January 31, 1994 (9)
    10.50  --Eighteenth Amendment to Loan Agreement dated as of
             March 15, 1994 (10)
    10.51  --Nineteenth Amendment to Loan Agreement dated as of
             May 17, 1994 (7)
    10.52  --Form of Indenture between the Registrant and Bank
             of America Texas, National Association as Trustee,
             including the form of 5 3/4% Convertible
             Subordinated Debenture attached as Exhibit A thereto
             (11)
    10.53  --1992 Executive Compensation Plan for Group
             Presidents (3)
    10.54  --1993 Executive Compensation Plan for Group
             Presidents (8)
    10.55  --1994 Executive Compensation Plan for Group
             Presidents (3)
    10.56  --Form of Series G Warrant Agreement (3)
    10.57  --Amended 1992 Non-Statutory Stock Option Plan (12)
    10.58  --1994 Non-Statutory Stock Option Plan (13)
    10.59  --Form of Indemnity Agreement between the Registrant
             and each of its directors (3)
    10.60  --Systems Center, Inc. Restated and Amended
             Restricted Stock Plan (15)
    10.61  --Systems Center, Inc. Amended and Restated
             Nondiscretionary Restricted Stock Plan (15)
    10.62  --Systems Center, Inc. 1982 Stock Option Plan (15)
    10.63  --Systems Center, Inc. 1992 Stock Incentive Plan (15)
</TABLE>
 
<PAGE>
 
<TABLE>
<CAPTION>
                                                                   SEQUENTIALLY
   EXHIBIT                                                           NUMBERED
   NUMBER                  DESCRIPTION OF EXHIBIT                     PAGES
   -------                 ----------------------                  ------------
   <C>     <S>                                                     <C>
    10.64  --Systems Center, Inc. 1983 Stock Plan (15)
    10.65  --Systems Center, Inc. Share Option Scheme (15)
    10.66  --Registration Rights Agreement dated as of July 1,
             1993 among the Registrant and the Selling
             Stockholders named therein(14)
    10.67  --Assignment of Loan Documents and Security Interests
             dated as of August 31, 1994 among the Registrant,
             IBM Credit Corporation and KnowledgeWare, Inc. (1)
    10.68  --Amended and Restated Revolving Loan and Security
             Agreement dated as of August 31, 1994 between the
             Registrant and KnowledgeWare, Inc. (1)
    10.69  --Warrant Agreement dated as of August 31, 1994
             between the Registrant and KnowledgeWare, Inc. (1)
    10.70  --Registration Rights Agreement dated as of August
             31, 1994 between the Registrant and KnowledgeWare,
             Inc. (1)
    10.71  --First Amendment to Amended and Restated Revolving
             Loan and Security Agreement dated as of October 25,
             1994 between the Registrant and KnowledgeWare, Inc.
             (1)
    11     --None
    12     --None
    13     --None
    14     --None
    15     --None
    16     --None
    21     --Subsidiaries (1)
    23.1   --Consent of Ernst & Young LLP (1)
    23.2   --Consent of Arthur Andersen LLP(1)
    23.3   --Consent of Coopers & Lybrand, L.L.P. (1)
    23.4   --Consent of Alex. Brown & Sons Incorporated (1)
    23.5   --Consent of Jackson & Walker, L.L.P. (included in
             its opinions filed as Exhibits 5 and 8 to this
             Registration Statement) (1)
    23.6   --Consent of Hicks, Maloof & Campbell, A Professional
             Corporation (1)
    24     --Power of Attorney (1) (Appearing on page II-7 of
             this Registration Statement)
    25     --None
    26     --None
    27     --None
    28     --None
    99     --Form of Proxy Card (1)
</TABLE>
- --------
 (1) Filed herewith.
 (2) Previously filed as an exhibit to the Registrant's Registration Statement
     No. 2-82506 on Form S-1 and incorporated herein by reference.
 (3) Previously filed as an exhibit to the Registrant's Annual Report on Form
     10-K for the fiscal year ended September 30, 1993 and incorporated herein
     by reference.
<PAGE>
 
 (4) Previously filed as an exhibit to the Registrant's Registration Statement
     No. 33-69926 on Form S-8 and incorporated herein by reference
 (5) Previously filed as an exhibit to the Registrant's Registration Statement
     No. 33-47131 on Form S-8 and incorporated herein by reference.
 (6) Previously filed as an exhibit to the Registrant's Registration Statement
     No. 2-86825 on Form S-1 and incorporated herein by reference.
 (7) Previously filed as an exhibit to the Registrant's Quarterly Report on
     Form 10-Q for the fiscal quarter ended June 30, 1994 and incorporated
     herein by reference.
 (8) Previously filed as an exhibit to the Registrant's Registration Statement
     No. 33-62028 on Form S-4 and incorporated herein by reference.
 (9) Previously filed as an exhibit to the Registrant's Quarterly Report on
     Form 10-Q for the fiscal quarter ended December 31, 1993 and incorporated
     herein by reference.
(10) Previously filed as an exhibit to the Registrant's Quarterly Report on
     Form 10-Q for the fiscal quarter ended March 31, 1994 and incorporated
     herein by reference.
(11) Previously filed as an exhibit to the Registrant's Registration Statement
     No. 33-57428 on Form S-3 and incorporated herein by reference.

<PAGE>

                                                                     EXHIBIT 2.2
 
                            STERLING SOFTWARE, INC.
                         8080 North Central Expressway
                                  Suite 1100
                               Dallas, TX 75206

                               October 11, 1994


KnowledgeWare, Inc.
3340 Peachtree Road, N.E.
Suite 1100
Atlanta, Georgia 30326

     Re:   Amended and Restated Agreement and Plan of Merger (the "Merger
           Agreement") dated as of August 31, 1994 among Sterling Software, Inc.
           ("Sterling"), KnowledgeWare, Inc. ("KnowledgeWare") and SSI
           Corporation

Ladies and Gentlemen:

     Reference is hereby made to the Merger Agreement.  Capitalized terms used 
in this Letter Agreement (this "Agreement") and not otherwise defined herein 
shall have the meanings attributed to such terms in the Merger Agreement.

     The parties hereto hereby agree that the Merger Agreement is hereby 
modified to replace the form of Escrow Agreement attached as Exhibit 4.4 thereto
with the form of Escrow Agreement attached as Exhibit A to this Agreement.

     Except as herein expressly modified by this Agreement, the terms and 
provisions of the Merger Agreement shall remain as originally executed. 

     Please acknowledge your agreement with the foregoing by executing this 
Agreement in the space provided below.

      
                                            Sterling Software, Inc.

                                            By:  /s/ Jeannette P. Meier
                                                 -------------------------------

                                            Its: Executive Vice President
                                                 -------------------------------
  


                                            SSI Corporation

                                            By:  /s/ Jeannette P. Meier
                                                 -------------------------------

                                            Its: Vice President
                                                 -------------------------------
<PAGE>
 
KnowledgeWare, Inc.
October 11, 1994
Page 2

ACKNOWLEDGED AND AGREED
AS OF THE DATE FIRST
SET FORTH ABOVE


KnowledgeWare, Inc.

By:  /s/ Rick W. Gosset
     --------------------------------

Its: Vice President Finance
     --------------------------------


<PAGE>
 
                                                                       EXHIBIT A


                                  EXHIBIT 4.4

                               ESCROW AGREEMENT

     This Escrow Agreement ("Agreement"), dated as of            , 1994, among 
Sterling Software, Inc., a Delaware corporation ("Sterling"), KnowledgeWare, 
Inc., a Georgia corporation ("KnowledgeWare"), The First National Bank of Boston
(the "Agent") and                 as representative (the "Representative").


                             W I T N E S S E T H:


   WHEREAS, Sterling, SSI Corporation, a Georgia corporation and wholly owned 
subsidiary of Sterling ("Newco"), and KnowledgeWare are parties to that certain 
Amended and Restated Agreement and Plan of Merger dated as of August 31, 1994 to
be effective as of July 31, 1994 (as amended, the "Merger Agreement") pursuant 
to which Newco will merge with and into KnowledgeWare; and

   WHEREAS, pursuant to the Merger Agreement, Sterling is entitled to
indemnification under certain circumstances as set forth in the Merger
Agreement; and

   WHEREAS, the purpose of this Agreement is to provide for the deposit of      
shares of common stock, par value $0.10 per share, of Sterling ("Buyer Common 
Stock") pursuant to the Merger Agreement to satisfy the rights of Sterling to be
indemnified under Section 7.18 of the Merger Agreement and to provide for the 
distribution, if applicable, of any shares of Buyer Common Stock to persons who 
as of the Effective Time (as defined in the Merger Agreement) were holders of 
record ("Record Holders") of issued and outstanding Shares (as defined in the 
Merger Agreement);

   NOW, THEREFORE, in consideration of the premises and other good and 
valuable consideration, the receipt and sufficiency of which are hereby 
acknowledged, the parties hereto agree as follows:

   1. Definitions. As used in this Agreement, all capitalized terms not defined
herein shall have the meanings attributed to such terms in the Merger Agreement.
The parties acknowledge and agree that the term "Damages" also includes amounts
paid in settlement of any Action (including, without limitation, fees and
disbursements of counsel and investigation expenses incurred in connection
therewith.)

   2.  Appointment of Agent and Representative.

   (a)  Sterling and KnowledgeWare hereby appoint the Agent as escrow agent for 
the purposes set forth herein and the Agent hereby accepts such appointment on 
the terms herein provided.

   (b)  The Representative is hereby appointed as agent and representative of 
the Record Holders for the purposes set forth herein and the Representative 
accepts such appointment on the terms herein provided.

   3.  Escrowed Shares.

   (a)  For the purposes herein set forth, Sterling has caused to be deposited 
with the Agent         shares of Buyer Common Stock (the "Escrowed Shares").  
The Escrowed Shares shall be registered in the name of the Agent or its nominee.
If during the term of this Agreement there is declared a stock dividend or 
stock split, all securities thereby issuable with respect to the Escrowed Shares
shall be deposited hereunder and shall be deemed "Escrowed Shares" for the 
purposes of this Agreement. If during the term of this Agreement there is paid 
any dividends (within the meaning of Section 301(c)(1) of the Code) in cash or 
other property in respect of the Escrowed Shares, such dividends shall be paid 
by the Agent to the Record Holders, pro rata, except that any such dividends 
paid in respect of Escrowed Shares as to which a claim exists pursuant to a 
Sterling Notice shall constitute and be deemed part of such Escrowed Shares for 
purposes of this Agreement. If during the term of this Agreement there is any 
other distribution which does not constitute a dividend (within the meaning of 
Section 301(c)(1) of the Code) in cash or other property in respect of the 
Escrowed 

                                     A-27

<PAGE>
 
Shares, such distribution shall be retained by the Agent and shall constitute 
part of the "Escrowed Shares" for purposes of this Agreement.  The Escrowed 
Shares shall be held and disbursed by the Agent in accordance with the terms of 
this Agreement.

     (b)  The Escrowed Shares held by the Agent pursuant to this Agreement shall
be deemed issued and outstanding.  With respect to any matter on which 
stockholders of Sterling have a right to vote, the Agent, on behalf of the 
Record Holders, shall have the right to vote, or not vote, all Escrowed Shares 
(or any portion thereof) in such manner as it deems appropriate as agent for the
Record Holders; provided that, at Sterling's expense, the Agent shall promptly 
forward, or cause to be forwarded, copies of any proxies, proxy statements and 
other soliciting materials to the Record Holders, and shall vote the applicable 
portion of the Escrowed Shares in accordance with any written instructions 
timely received by the Agent from any Record Holder.

     (c)  The Record Holders' interest in this Agreement and the Escrowed Shares
(prior to the disbursement thereof) may not be transferred except by operation 
of law.

     4.  Application of Escrow Deposit.  The Escrowed Shares shall be held in 
escrow under the terms of this Agreement and released by the Agent upon the 
following terms:

          (a) Upon joint written notice and instruction from Sterling and the
     Representative that the Escrowed Shares, or any portion thereof, should be
     disbursed, the Agent shall make such disbursement in accordance with the
     directions set forth in such joint written notice and instruction.

          (b) If at any time, or from time to time, before the second
     anniversary of the Effective Time, Sterling delivers to the Agent written
     notice (a "Sterling Notice") asserting that Sterling is entitled to
     indemnification as set forth in Section 7.18 of the Merger Agreement, which
     Sterling Notice shall state the basis and amount of such claim, then the
     Agent shall disburse, on the twentieth business day following receipt of
     the Sterling Notice, all or such portion of the Escrowed Shares to Sterling
     as specified in the Sterling Notice; provided that if the Agent receives
     written notice from the Representative prior to such twentieth business day
     that a dispute exists with respect to the claims made in the Sterling
     Notice (a "Dispute Notice"), which Dispute Notice shall state the basis of
     such dispute, the Agent shall continue to hold the Escrowed Shares (but
     shall disburse to Sterling any portion of such Escrowed Shares as to which
     no dispute exists) until directed otherwise pursuant to paragraph (a) above
     or (c) below.


          (c) If the Agent timely receives a Dispute Notice, the Agent shall
     retain the Escrowed Shares subject of the Sterling Notice until the first
     to occur of the following:


               (i) receipt by the Agent of a joint written instructions from
          Sterling and the Representative, in which case the Agent shall
          disburse the Escrowed Shares (or applicable portions thereof) as set
          forth in such joint written instructions; or

               (ii) receipt by the Agent of a written notice from either
          Sterling or the Representative (a "Litigation Certificate") to the
          effect that such person(s) has received a final non-appealable
          judgment or order from a court of competent jurisdiction (and
          attaching a copy of such judgment or order) resolving the dispute as
          to the disbursement of the subject Escrowed Shares setting forth in
          reasonable detail the substance of such judgment and instructions as
          to the resulting disbursement of the Escrowed Shares (or applicable
          portions thereof), in which case the Agent shall make such
          disbursement (or portions thereof) on the twentieth business day
          following receipt of the Litigation Certificate; provided that if
          Sterling or the Representative delivers to the Agent a certificate
          prior to such twentieth business day disputing the contents of the
          Litigation Certificate (the "Countervailing Certificate"), then the
          Agent, on the twentieth business day following receipt of the
          Countervailing Certificate, shall interplead the subject Escrowed
          Shares into, or file a declaratory judgment action with, a court of
          competent jurisdiction to determine the rights of the parties to the
          Escrowed Shares, unless prior to such twentieth business day the Agent
          receives a joint written instruction pursuant to paragraph (c)(i)
          above.

                                     A-28

<PAGE>
 
          (d) If, on the second anniversary of the Effective Time, there are
     Escrowed Shares remaining undisbursed and not the subject of a Sterling
     Notice or a Contingent Claim Notice (defined below), the Agent shall
     disburse such Escrowed Shares to the Record Holders pro rata in accordance
     with their relative record ownership of Shares issued and outstanding as of
     the Effective Time.

          (e) If, within 30 days prior to the second anniversary of the
     Effective Time, Sterling, in its reasonable good faith judgment, believes
     that there exist one or more Actions with respect to which Sterling would
     be entitled to indemnification for Damages incurred subsequent to the
     second anniversary of the Effective Time (each a "Contingent Claim" and
     collectively, "Contingent Claims"), Sterling may give the Agent written
     notice (a "Contingent Claim Notice") of such Contingent Claims, which
     Contingent Claim Notice shall state the basis of the Contingent Claims and
     Sterling's reasonable good faith estimate of the maximum amount of Damages
     for which it would be entitled to indemnification with respect thereto. In
     the event a Contingent Claim Notice is delivered, a number of Escrowed
     Shares equal to the aggregate amount of such estimated Damages divided by
     the most recently reported closing sales price of the Buyer Common Stock on
     the date of the Contingent Claim Notice shall remain subject to this
     Agreement, and this Agreement shall remain in effect; provided that, with
     respect to any Contingent Claim which has not been resolved on or prior to
     the fourth anniversary of the Effective Time, any Escrowed Shares
     attributable to such Contingent Claim and not disbursed shall be
     disbursed to the Record Holders pro rata in accordance with their relative
     record ownership of Shares issued and outstanding as of the Effective Time
     unless, as of the fourth anniversary of the Effective Time, such Contingent
     Claim is then subject to litigation or binding arbitration proceedings, in
     which case such Escrowed Shares shall remain subject to this Agreement, and
     this Agreement shall remain in effect, until the final, nonappealable
     resolution of such proceedings.

          (f) Notwithstanding any other provision of this Agreement, no
     fractional shares of Buyer Common Stock will be issued to the Record
     Holders and any Record Holder who would otherwise be entitled to receive a
     fractional share will be entitled to receive a cash payment in lieu
     thereof, which payment shall represent such holder's proportionate interest
     in the net proceeds from the sale by the Agent, with ten business days
     following the date the disbursement of such fractional share would have
     been made, on behalf of all such Record Holders of the aggregate fractional
     shares of Buyer Common Stock that such persons would be entitled to receive
     but for this paragraph (f).

          (g) For the purposes of this Agreement, whenever in this Agreement it
     is provided that the Agent may or shall disburse Escrowed Shares to
     Sterling, the Agent shall,as Sterling may direct in writing, either (i)
     deliver to Sterling a stock certificate representing the appropriate number
     of Escrowed Shares or (ii) sell an appropriate number of Escrowed Shares
     and deliver the proceeds therefrom to Sterling. In determining the number
     of shares to be so disbursed or sold in respect of Damages, the number of
     Escrowed Shares to be disbursed or sold shall be equal to the number of
     shares (rounded to the nearer whole share) determined by dividing the
     amount of Damages with respect to which Sterling is entitled to be
     indemnified by the most recently reported closing sale price of the Buyer
     Common Stock preceding the date Sterling delivers to the Agent the Sterling
     Notice.

          (h) Not withstanding paragraph (g) above, in the event that the Agent
     is required to sell any of the Escrowed Shares pursuant to Section 4(g) or
     Section 12(c) or otherwise, Sterling may notify the Agent that the Agent
     shall suspend its efforts to sell any or all of such shares until receipt
     of further notice from Sterling, without giving any reason therefor, and
     the Agent shall suspend such efforts until receipt of such further notice.


     5.  Communications with Representative.


     (a) Within a reasonable time following receipt of notice of an Action for
which Sterling believes it is entitled to indemnification, Sterling shall give
the Representative written notice of such Action, which notice shall describe
the material allegations of such Action.

                                     A-29
















<PAGE>
 
     (b)  Within a reasonable time following the end of each calendar quarter 
while this Agreement is in effect, Sterling shall deliver to the Representative 
a written summary of the status of each Action with respect to which Sterling is
seeking indemnification.

     (c)  At least ten (10) days prior to settling any Action with respect to 
which Sterling is seeking indemnification (or such shorter period as is then 
consented to by the Representative), Sterling shall give the Representative 
written notice thereof, which notice shall describe the material terms of such 
settlement.

     (d)  Within a reasonable time after receiving a request therefor from the 
Representative, Sterling shall furnish the Representative such additional 
information relating to Actions as he may reasonably request from time to time.

     6.  Liability of the Agent.   The duties of the Agent hereunder shall be 
limited to the observance of the express provisions of this Agreement. The Agent
shall not be subject to, or be obliged to recognize, any other agreement between
the parties hereto to directions or instructions not specifically set forth or 
provided for herein. The Agent shall not make and disposition of Escrowed Shares
which is not expressly authorized by this Agreement. The Agent may rely upon and
act upon any instrument received by it pursuant to the provisions of this 
Agreement which it in good faith believes to be genuine and in conformity with 
the requirements of this Agreement. Except as expressly provided in the
Agreement, The Agent shall have no duty to determine or inquire into the
happening or occurrence of any event. Anything in this Agreement to the contrary
notwithstanding, the Agent shall not be liable to any person for anything which
it may do or refrain from doing in connection with this Agreement, unless the
Agent is guilty of gross negligence or willful misconduct.

     7.  Duties of the Agent.

     (a)  The Agent shall hold or sell the Escrowed Shares, or portions thereof,
as set forth herein.

     (b)  The Agent shall have no authority or obligation to invest funds except
as herein provided.

     (c)  Promptly following receipt by the Agent of any certificate or notice 
(i) from Sterling or the Representative pursuant to Section 4, the Agent shall 
promptly provide a copy thereof to the other and (ii) from any Record Holder 
pursuant to Section 13, the Agent shall promptly provide a copy thereof to 
Sterling and the Representative.

     8.  Indemnification of the Agent.

     (a)  Sterling and KnowledgeWare (solely to the extent of the Escrowed 
Shares) each shall severally indemnify and hold the Agent, its employees, 
officers, agents, successors and assigns harmless from and against any and all 
loss, cost, damages or expenses (including reasonable attorneys' fees) it or
they may sustain by reason of the Agent's service as escrow agent hereunder,
except such a loss, cost, damage or expense (including reasonable attorneys'
fees) incurred by reason of such acts or omissions for which the Agent is liable
or responsible under the provisions of Section 6 hereof.

     (b)  The Agent is hereby given prior lien on all rights, titles and 
interests of Sterling and the Record Holders in the Escrowed Shares, including 
any property or cash (or cash equivalent) arising therefrom, in order to 
protect, indemnify and reimburse the Agent for the costs, expenses, fees and
liabilities to which it is entitled pursuant to Section 8(a) above.

     9.  Fees of the Agent.   The Agent's compensation for services hereunder 
shall be in accordance with Exhibit A. In the event extraordinary services are 
required of the Agent beyond the services described herein, compensation shall 
be an amount that is fair and equitable based upon the services and 
responsibility involved. Sterling shall pay the fees and expenses of the Agent 
for serving as escrow agent.

     10.  Resignation of the Agent.   The Agent may resign as escrow agent by 
giving each of Sterling and the Representative not less than 30 days' written 
notice of the effective date of such resignation. Sterling shall

                                     A-30


 








<PAGE>
 
have the right to designate a substitute escrow agent, provided it is reasonably
acceptable to the Representative. If on or prior to the effective date of such 
resignation, the Agent has not received written instructions from Sterling of a 
substitute escrow agent, it shall thereupon deposit the Escrowed Shares into the
registry of a court of competent jurisdiction. The parties hereto intend that a 
substitute escrow agent shall be appointed to fulfill the duties of the Agent 
hereunder for the remaining term of this Agreement in the event of the Agent's 
resignation.

     11. Remedies of the Agent.
     (a) In the event of any dispute hereunder, or if conflicting demands or 
notices are made upon the Agent, or in the event the Agent in good faith is in 
doubt as to what action it should take hereunder, the Agent shall have the right
to (i) stop all further proceedings in, and performance of, this Agreement and 
instructions received hereunder, and/or (ii) file a suit in interpleader and 
obtain an order from a court of competent jurisdiction requiring all persons 
involved to interpleader and litigate in such court their several claims and 
rights with respect to the Escrowed Shares.

     (b) While any legal proceeding arising out of this Agreement is pending, 
the Agent shall have the right to stop all further proceedings in, and 
performance of, this Agreement and instructions received hereunder until all 
differences shall have been resolved by agreement or a final order.

     (c) The Agent may from time to time consult with legal counsel of its own 
choosing in the event of any disagreement, controversy, question or doubt as to 
the construction of any of the provisions hereof or its duties hereunder, and it
shall incur no liability and shall be fully protected in acting in good faith in
accordance with the opinion and instructions of such counsel. Any such fees and 
expenses of such legal counsel shall be considered part of the fees and expenses
of the Agent for the purposes of Section 9 of this Agreement.

     12. Responsibilities of the Representative.

          (a) The Representative is an attorney who has been designated by the 
     Board of Directors of KnowledgeWare with the consent of Sterling in its
     reasonable discretion. The duties of the Representative hereunder shall be
     limited to the observance of the express provisions of this Agreement. The
     Representative shall not be subject to, or be obliged to recognize, any
     other agreement between the parties hereto or directions or instructions
     not specifically set forth or provided for herein. Anything in this
     Agreement to the contrary notwithstanding, the Representative shall not be
     liable to any Record Holder or any other person for anything which it may
     do or refrain from doing in connection with this Agreement, unless the
     Representative is guilty of willful misconduct.

          (b) The Representative and its successors and assigns shall be 
     indemnified and held harmless, out of the Escrowed Shares, from and against
     any and all loss, cost, damages or expenses (including reasonable
     attorneys' fees) it or they may sustain by reason of the Representative's
     services as representative hereunder, except such loss, cost, damage or
     expense (including reasonable attorneys' fees) incurred by reason of such
     acts or omissions for which the Representative is responsible pursuant to
     paragraph (a) above.

          (c) The Representative's compensation for services hereunder shall be 
     at his normal hourly rate. The fees and reasonable expenses of the
     Representative shall be paid out of the Escrowed Shares on a timely basis
     upon presentation of invoices to the Agent, and shall be paid through the
     sale by the Escrow Agent of a sufficient number of Escrowed Shares.

     13. Resignation or Removal of the Representative. The Representative may 
resign as representative by giving Sterling, the Agent and each of the Record 
Holders not less than 30 days' written notice of the effective date of such 
resignation. Record Holders who as of the Effective Time owned of record at 
least 51% of the issued and outstanding Shares may, by delivering written notice
to Sterling, the Agent and the Representative, remove the Representative with or
without cause. Prior to the effective date of such resignation or removal, 
Record Holders who as of the Effective Time owned of record at least 51% of the 
issued and outstanding



                                     A-31
<PAGE>
 
Shares may deliver to Sterling and the Agent a written designation of a 
substitute representative who shall be acceptable to Sterling in its reasonable 
discretion. If no designation is made, the Representative shall appoint a 
substitute representative, provided such substitute representative is reasonably
acceptable to Sterling.

     14. Miscellaneous.

         (a) Any notice or communication hereunder to Sterling, the 
     Representative or the Agent must be in writing and given by overnight
     courier, depositing the same in the United States mail, addressed to the
     person to be notified, postage prepaid and registered or certified with
     return receipt requested, or by delivering the same in person. Such notice
     shall be deemed received on the date on which it is received if sent by
     overnight courier or hand-delivered or on the third business day following
     the date on which it is so mailed. For purposes of notice, the addresses
     shall be:

If to Sterling:           Sterling Software, Inc.
                          8080 North Central Expressway
                          Suite 1100
                          Dallas, Texas 75206
                          Attn: General Counsel

with a copy to:           Jackson & Walker, L.L.P
                          901 Main Street, Suite 6000
                          Dallas, Texas 75202
                          Attn: Charles D. Maguire, Jr

If to the Representative: 




If to the Agent:          The First National Bank of Boston
                          Blue Hills Office Park
                          150 Royal Street; Mail Stop 45-02-15
                          Canton, MA 02021
                          Attention: Corporate Trust

Any notice or communication hereunder to a Record Holder must be in writing and 
given by depositing the same in the United States mail, addressed to the Record 
Holder as reflected on the records of the transfer agent for the Shares as of 
the Effective Time, which notice shall be deemed received on the fifth business 
day following the date on which it is so mailed. Any party or Record Holder may 
change its address for notice by written notice given to the other parties in 
accordance with this Section. In cases where Sterling and the Representative may
give joint written notice or instructions to the Agent, such notice may be given
by separate instruments of similar tenor.

    (b) This Agreement may be amended, modified or supplemented only by an 
instrument in writing executed by Sterling, the Representative and the Agent; 
provided that this Agreement may not be amended in a manner that would 
materially and adversely affect the rights or benefits of the Record Holders 
without the written consent of Record Holders who as of the Effective Time owned
of record at least 51% of the issued and outstanding Shares.

    (c) This Agreement and the agreements contemplated hereby constitute the 
entire agreement of the parties regarding the subject matter hereof, and 
supersede all prior agreements and understandings, both written and oral, among 
the parties, or any of them, with respect to the subject matter hereof.

    (d) This Agreement and the rights and obligations of the parties hereto 
shall be governed by and construed and enforced in accordance with the 
substantive laws (but not the rules governing conflicts of laws) of the State of
Texas.

    (e) This Agreement may be executed in multiple counterparts, each of which 
shall be deemed an original, and all of which together shall constitute one and 
the same instrument.



                                     A-32
<PAGE>

     IN WITNESS WHEREOF, the parties hereto have hereunto caused this Agreement
to be executed as of the day and year first above written.

                                      STERLING:

                                      STERLING SOFTWARE, INC.

                                      By : _________________________ 


                                      Its: _________________________


                                      KNOWLEDGEWARE, INC.


                                      By : _________________________


                                      Its: _________________________

 
                                      AGENT:

                                      THE FIRST NATIONAL BANK OF BOSTON


                                      By : _________________________


                                      Its: _________________________


                                      REPRESENTATIVE:

                                      ______________________________














                                     A-33
<PAGE>
 

                                                               Exhibit A
SCHEDULE OF FEES
________________________________________________________________________________














































                                     A-34

<PAGE>

                                                                     EXHIBIT 2.3
                                FIRST AMENDMENT
                                       TO
               AMENDED AND RESTATED AGREEMENT AND PLAN OF MERGER

                                        
          THIS FIRST AMENDMENT TO AMENDED AND RESTATED AGREEMENT AND PLAN OF
MERGER (this "First Amendment") is made as of this _____________day of October,
1994 among KNOWLEDGEWARE, INC., a Georgia corporation (the "Corporation"),
STERLING SOFTWARE, INC., a Delaware corporation ("Buyer"), and SSI CORPORATION,
a Georgia corporation and a wholly-owned subsidiary of Buyer ("Merger Sub").

          The Corporation, Buyer and Merger Sub are parties to that certain
Amended and Restated Agreement and Plan of Merger dated as of August 31, 1994
(the "Merger Agreement").  Except as otherwise defined or modified herein, all
capitalized terms used in this First Amendment shall have the meaning set forth
in the Merger Agreement.

          In consideration of the mutual agreements contained in the Merger
Agreement and in this First Amendment and other good and valuable consideration,
the receipt and sufficiency of which are hereby acknowledged, the parties hereto
agree as follows:

          A.  Amendment to Section 7.18 of the Merger Agreement.  Section 7.18
              -------------------------------------------------               
of the Merger Agreement is amended in its entirety to read as follows:


               "Indemnification.
               ----------------

               (i) Notwithstanding any other provisions of this Agreement,
     subject to the provisions of this Section 7.18 and limited in all cases to
     the Escrowed Shares and the terms of the Escrow Agreement, the Corporation
     shall indemnify and hold harmless Buyer and Merger Sub, and their
     respective parent and subsidiary corporations, heirs, assigns, successors,
     directors, officers, employees, agents, attorneys, administrators,
     beneficiaries and executors (each an "Escrow Indemnified Party" and
     collectively, the "Escrow Indemnified Parties"), from and against all
     losses, claims, counterclaims, obligations, demands, causes of action,
     choses in action, suits, assessments, common law and statutory penalties,
     liabilities, costs, damages, punitive and exemplary damages, judgments,
     interest and expenses (including without limitation amounts paid in
     settlement and fees and disbursements of counsel and expenses incurred in
     connection with investigating, preparing for, pursuing or defending any
     pending or threatened litigation, action, claim, proceeding, dispute or
     investigation (an "Action")) (collectively, "Damages") asserted against or
     incurred by the Corporation or such Escrow Indemnified Parties from or
     after the date of this Agreement by reason of or arising from any Action
     now pending or threatened against the Corporation or that may arise
     following the date hereof involving the Corporation or the Escrow
     Indemnified Parties, and relating to the nature of or business and affairs
     of the Corporation, this Agreement or the transactions

                                      -1-
<PAGE>

     contemplated hereby.  Notwithstanding the foregoing, such indemnification
     shall include without limitation any Action arising out of violations or
     alleged violations of securities laws and any Actions brought by the
     current and former directors and officers of the Corporation to enforce
     their rights under Section 7.17 of this Agreement against the Corporation
     or an Escrow Indemnified Party but such indemnification shall exclude any
     Actions arising out of ordinary course of business transactions, other
     Actions brought by current or former employees with respect to their
     employment or termination thereof and those Actions set forth in Section
     5.8 of the Corporation Disclosure Letter; provided, however, the
     Corporation or such Escrow Indemnified Parties shall be indemnified for
     Damages arising with respect to those items set forth in Item IV of Section
     5.8 of the Corporation Disclosure Letter.  Notwithstanding the provisions
     of this Section 7.18, the Escrow Indemnified Parties' rights hereunder
     shall not limit in any respect any rights the Corporation or any Escrow
     Indemnified Party may have against third persons with respect to any
     Action, including without limitation rights under insurance policies and
     contractual rights as an indemnitee.  Neither the Corporation, Buyer nor
     any other Escrow Indemnified Party shall have any duty or obligation to
     pursue any rights against third persons as a precondition to the
     indemnification provided for in this Section 7.18.

               (ii) Notwithstanding the provisions of Section 7.18(i), Buyer
     shall not be entitled to deliver notice of indemnification for Damages
     pursuant to Section 7.18(i) after the second anniversary of the Effective
     Time except to the extent provided in the Escrow Agreement.

     B.   Authorization, Validity and Effect of First Amendment.  Subject only
          -----------------------------------------------------               
to the approval of this Agreement by the holders of a majority of the
outstanding shares of Common Stock, without par value, of the Corporation in
accordance with the Georgia Business Corporation Code, the Corporation has the
requisite corporate power and authority to execute and deliver this First
Amendment, and the consummation by the Corporation of the transactions
contemplated hereby has been duly authorized by all requisite corporate action.
This First Amendment constitutes the validly and legally binding obligation of
the Corporation enforceable in accordance with its terms.

     C.   Representations and Warranties.  Each of the representations and
          ------------------------------                                  
warranties made by the Corporation and Buyer in the Merger Agreement are hereby
repeated in their entirety as if made on the date of and in connection with this
First Amendment, and the terms "this Agreement", "hereof", "hereunder" and terms
of similar meaning shall be deemed to refer to the Merger Agreement, as amended
by this First Amendment.

     D.   Governing Law.  This First Amendment shall be governed by and
          -------------                                                
construed in accordance with the laws of the State of Delaware without regard to
its rules of conflict of laws.

     E.   Miscellaneous.  Except as herein expressly modified, the terms and
          -------------                                                     
provisions of the Merger Agreement shall remain as originally executed.

                                      -2-
<PAGE>

     IN WITNESS WHEREOF, the parties have executed this First Amendment and
caused the same to be duly delivered on their behalf as of the day and year
first hereinabove written.

 
                                    THE CORPORATION:
                                    --------------- 

                                    KNOWLEDGEWARE, INC., a
                                     Georgia corporation


                                    By:  /s/ Francis A. Tarkenton
                                       ----------------------------------
                                         Francis A. Tarkenton,
                                         Chairman of the Board and Chief
                                         Executive Officer


                                    BUYER:
                                    ----- 
 
                                    STERLING SOFTWARE, INC., a
                                     Delaware corporation


                                    By:  /s/ Sterling L. Williams
                                       ----------------------------------
                                         Sterling L. Williams,
                                         President


                                    MERGER SUB:
                                    ---------- 

                                    SSI CORPORATION, a
                                     Georgia corporation


                                    By:  /s/ Sterling L. Williams
                                       ----------------------------------
                                         Sterling L. Williams,
                                         President



                                      -3-

<PAGE>

                   [LETTERHEAD OF JACKSON & WALKER, L.L.P.]
 
                                                                       EXHIBIT 5
(214) 953-6000



                               October 27, 1994



Sterling Software, Inc.
8080 N. Central Expressway
Suite 1100
Dallas, Texas  75206

     Re:  Registration Statement on Form S-4 of Sterling Software, Inc.

Ladies and Gentlemen:

     We have acted as counsel for Sterling Software, Inc., a Delaware
corporation (the "Company"), in connection with the registration under the
Securities Act of 1933, as amended (the "Act"), of up to 2,654,652
shares of common stock, par value $0.10 per share, of the Company (the
"Shares"), which Shares are being registered for issuance to the holders of the
Common Stock, without par value, of KnowledgeWare, Inc. ("KWI") upon the closing
of the merger contemplated by that certain Amended and Restated Agreement and
Plan of Merger dated as of August 31, 1994, by and among the Company, SSI
Corporation and KWI (as amended, the "Merger Agreement").  A Registration 
Statement on Form S-4 (the "Registration Statement") is expected to be filed 
with the Securities and Exchange Commission (the "Commission") on or about the
date hereof.

     In connection with the rendering of this opinion, we have examined and
relied upon the original or copies, certified to our satisfaction, of all
documents, certificates and instruments as we have deemed necessary for the
expression of the opinions expressed herein, including the Certificate of
Incorporation, as amended, and the Restated Bylaws of the Company, copies of
resolutions of the Board of Directors of the Company authorizing the issuance of
the Shares and the Registration Statement and all exhibits thereto.  In making
the foregoing examinations, we have assumed the genuiness of all signatures on
original documents, the authenticity of all documents submitted to us as
originals and the conformity to original documents of all copies submitted to
us.

     Based upon the foregoing examination, subject to the comments and
exceptions herein stated, and limited in all respects to the laws of the State
of Texas, the General Corporation Law
<PAGE>
 
Sterling Software, Inc.
October 27, 1994
Page 2



of the State of Delaware and the laws of the United States of America, and
subject to receipt from the Commission of an order declaring the Registration
Statement effective, it is our opinion that, when issued pursuant to the 
Merger Agreement as described in the Registration Statement, the Shares will be
validly issued, fully paid and nonassessable.

     You should be aware that we are not admitted to the practice of law in the
State of Delaware.  Accordingly, any opinion herein as to the laws of the State
of Delaware is based solely upon the latest generally available compilation of
the statutes and case law of such state.

     We hereby consent to the filing of this opinion with the Commission as an
exhibit to the Registration Statement and to the reference to our firm therein
under the caption "Legal Matters."  In giving this consent, we do not hereby
admit that we come within the category of persons whose consent is required
under Section 7 of the Act or the rules and regulations of the Commission
promulgated thereunder.

                                    Very truly yours,

                                    /s/ Jackson & Walker, L.L.P.

<PAGE>
 
                                                                     Exhibit 8.1


                         [Jackson & Walker, L.L.P. Letterhead]


Writer's Direct Dial No.
(214) 953-6000


                                October 27, 1994


Sterling Software, Inc.
8080 N. Central Expressway
Suite 1100
Dallas, Texas 75206


     We have acted as counsel to Sterling Software, Inc. ("Sterling") in
connection with (i) the proposed merger (the "Merger") of SSI Corporation, a
Georgia corporation ("Merger Sub"), with and into KnowledgeWare, Inc., a Georgia
corporation ("KnowledgeWare"), pursuant to the terms and conditions of that
certain Amended and Restated Agreement and Plan of Merger entered into August
31, 1994, by and among Sterling, Merger Sub and KnowledgeWare (as amended
through the date hereof, the "Merger Agreement"), and (ii) the filing of the
registration statement by Sterling on Form S-4 (together with all amendments and
exhibits thereto through the date hereof, the "Registration Statement"), under
the Securities Act of 1933, as amended (the "Act"), covering the shares of
Sterling Common Stock to be issued in the Merger. Capitalized terms used but not
defined herein shall have the meanings assigned to them in the Registration
Statement. Pursuant to the Merger Agreement, Merger Sub, a wholly-owned
subsidiary of Sterling formed solely for the purpose of effecting the Merger,
will merge with and into KnowledgeWare pursuant to the laws of the State of
Georgia and the holders of outstanding KnowledgeWare Common Stock (other than
Sterling and any subsidiary of Sterling and those entitled to receive cash in
lieu of a fractional share of Sterling Common Stock) will be issued solely
shares of Sterling Common Stock.

     In rendering this opinion we have examined such documents as we have deemed
relevant or necessary, including, without limitation, the Merger Agreement and
the Registration Statement.  In our examination, we have assumed the genuineness
of all signatures, the due execution and delivery of all documents, the legal
capacity of all natural persons, the authenticity of all documents submitted to
us as originals, the conformity to original documents of all documents submitted
to us as certified, conformed or copies, and the authenticity of the originals
of such copies.

     As to factual matters, in rendering this opinion we have relied solely on
and have assumed the present and continuing truth and accuracy of (i) the
description of the facts relating to the Merger contained in the Registration
Statement, (ii) the factual representations and
<PAGE>
 
Sterling Software Inc
October 27, 1994
Page 2




warranties contained in the Merger Agreement and related documents and
agreements, and (iii) the factual matters addressed by representations from
certain executive officers of Sterling and KnowledgeWare contained in letters to
us dated October 11, 1994, copies of which are attached as exhibits to this
opinion (the "Representation Letters").  The Representation Letters address
various factual matters relevant to the qualification of the Merger as a tax-
free reorganization under Section 368(a) of the Internal Revenue Code of 1986,
as amended (the "Code"), and the consequences thereof, including compliance with
Section 7.2 of the Merger Agreement through the Effective Time and plans
regarding (i) the subsequent conduct of KnowledgeWare's business, (ii) transfers
of stock or assets of KnowledgeWare, and (iii) transfers of Sterling Common
Stock to be received by KnowledgeWare shareholders in the Merger.  The initial
and continuing truth and accuracy of all such factual matters constitute an
integral basis for, and condition to, this opinion.

     For the Merger to qualify as a tax-free reorganization under Section 368(a)
of the Code, the historic shareholders of KnowledgeWare must receive a
significant, continuing proprietary interest in Sterling pursuant to the Merger
(the "Continuity" requirement).  Treas. Reg. (S) 1.368-1(b) and (d).  The
Sterling Common Stock to be issued to KnowledgeWare shareholders in the Merger
will constitute a significant proprietary interest in Sterling for purposes of
the Continuity requirement if its value, as of the Effective Time, is not less
than fifty percent of the value of all shares of KnowledgeWare stock outstanding
immediately prior to the Merger.  Rev. Proc. 84-42, 1984-1 C.B. 521, amplifying
                                                                     ----------
Rev. Proc. 77-37, 1977-2 C.B. 568.

     Shares issued to target shareholders in a reorganization will not count
towards satisfaction of the Continuity requirement to the extent that target
shareholders do not have unrestricted rights of ownership in the shares for some
period of time following the reorganization.  There is no direct authority as to
whether the contingent obligation of the KnowledgeWare shareholders to return
all or part of the Escrowed Shares will cause Knowledgeware shareholders to be
treated as not having unrestricted rights of ownership in the Escrowed Shares
while those shares remain subject to the Escrow Agreement.  Based on the terms
of the Escrow Agreement, the KnowledgeWare shareholders should be treated, for
Federal income tax purposes, as the owners of the Escrowed Shares from the
Effective Time.  Rev. Rul. 70-120, 1970-1 C.B. 124;  McAbee v. Commissioner, 5
                                                     ----------------------   
T.C. 1130 (1945), acq. 1946-2 C.B. 4.  Accordingly, counsel is of the opinion
                  ----                                                       
that the better view is that the KnowledgeWare stockholders should similarly be
treated as the unrestricted owners of the Escrowed Shares from the Effective
Time for purposes of the Continuity requirement.  Additionally, because the
Escrowed Shares constitute only twenty percent of the total shares of Sterling
Common Stock potentially issuable in the Merger, the Escrow Arrangement should
not adversely affect satisfaction of the Continuity requirement, even if the
Escrowed Shares are not counted towards satisfaction thereof; provided, that the
other
<PAGE>
 
Sterling Software, Inc.
October 27, 1994
Page 3




shares of Sterling Common Stock issued in the Merger are deemed to count towards
satisfaction thereof and no substantial amount of money or property other than
Sterling Common Stock is determined to constitute part of the Merger
consideration received by KnowledgeWare stockholders.

     Shares issued to target shareholders in a reorganization will not count
towards satisfaction of the Continuity requirement to the extent that post-
Merger dispositions thereof are made pursuant to a plan, intention or
arrangement existing at the time of the reorganization.  See Rev. Rul. 66-23,
                                                         ---                 
1966-1 C.B. 67; Penrod v. Commissioner, 88 T.C. 1415 (1987).  The Representation
                ----------------------                                          
Letters contain representations generally to the effect that, to the knowledge
of the executive officers of Sterling and KnowledgeWare, there is no plan or
intention by the shareholders of KnowledgeWare to sell, exchange, or otherwise
dispose of a number of shares of Sterling Common Stock to be received in the
Merger that would reduce such shareholders' aggregate ownership of Sterling
Common Stock below the requisite Continuity threshold.  No such representations
have been obtained, however, from the shareholders of KnowledgeWare, and, except
with respect to the Escrowed Shares, the Merger Agreement and related documents
do not require the KnowledgeWare shareholders to hold the shares of Sterling
Common Stock to be received by them in the Merger for any period of time.  In
the case of a publicly traded target, however, the Service apparently assumes
that post-reorganization dispositions by target shareholders who each hold less
than five percent of the target's shares immediately prior to the reorganization
will not be treated as having occurred pursuant to a pre-existing plan,
intention or arrangement.  Rev. Proc. 84-42, supra.  Although the Service's
                                             -----                         
advance ruling guidelines were promulgated as procedural conditions to obtaining
advance rulings from the Service and do not constitute substantive rules of law,
they are indicative of the Service's substantive position with respect to issues
addressed therein.  Accordingly, post-Merger dispositions by KnowledgeWare
shareholders who each own less than five percent of the KnowledgeWare Common
Stock outstanding at the Effective Time should not adversely affect satisfaction
of the Continuity requirement.

     Effective August 31, 1994, Sterling acquired all of the interest of IBM
Credit in its Loan Agreement with KnowledgeWare and entered into an amended loan
agreement (as amended through the date of this opinion, the "Amended Loan
Agreement"). To further induce Sterling to acquire IBM Credit's interest in the
Loan Agreement and to enter into the Amended Loan Agreement, KnowledgeWare and
Sterling entered into the Warrant Agreement. Sterling has subsequently advanced
funds to KnowledgeWare pursuant to the Amended Loan Agreement for use in the
operation of KnowledgeWare's business. The impact of Sterling's acquisition of
the Loan Agreement and its advances under the Amended Loan Agreement on
qualification of the Merger as a tax- free reorganization under Section 368(a)
of the Code is not entirely clear. In Revenue Ruling 72-343, 1972-2 C.B. 213,
the Service ruled that cash
<PAGE>
 
Sterling Software, Inc.
October 27, 1994
Page 4


 

advances from an acquiring corporation to a target corporation during the
pendency of a statutory merger constituted non-qualifying, additional
consideration for the assets of the target resulting in recognition of gain by
the target under Section 361(b) of the Code.  Had the amount of the advances in
Revenue Ruling 72-343 exceeded fifty percent of the sum of the amount of the
advances and the value of the acquiror's stock received by the target
shareholders in the merger, the Service would likely have held that the merger
failed the Continuity requirement and did not qualify as a tax-free Code Section
368(a) reorganization at all.

     The advances at issue in Revenue Ruling 72-343 were non-interest bearing,
subordinated demand notes and were repayable only if the merger was not
consummated through the fault of the target or its controlling shareholder.
Though not free from doubt, the holding in Revenue Ruling 72-343 appears to have
been predicated on an initial finding that, due to the absence of arms-length
terms,  the advances did not constitute true debt for Federal income tax
purposes.  Some doubt as to this conclusion is raised by reference in the ruling
to a determination that the advances would not have been made but for the
pending merger.  Nevertheless, the Ruling arguably supports the inference that
if loans made to a target during the pendency of a reorganization constitute
true debt for Federal income tax purposes, the advances will not constitute
additional consideration for the assets or stock acquired in the reorganization.
See also Kniffen v. Commissioner, 39 T.C. 553 (1962), acq. 1965-2 C.B. 5;
- -------- -----------------------                      ---                
Edwards Motor Transit Co. v. Commissioner, 23 T.C.M. 1968 (1964).
- -----------------------------------------                        

     The indebtedness evidenced by the Amended Loan Agreement bears interest, is
not subordinated, is secured by a first lien on substantially all of
KnowledgeWare's assets, and is payable at fixed times and in all events.
Additionally the Representation Letters contain representations generally to the
effect that (i) funds loaned by Sterling or Merger Sub to KnowledgeWare have
been or will be made on an arm's-length basis with terms comparable to those
which would have been obtained by unaffiliated third parties in the practice of
making loans of comparable risk, and were, or will be, adequately collateralized
when made or acquired; (ii) there is no plan or intention that any part of any
such loan will be forgiven or converted, directly or indirectly, into a capital
contribution to KnowledgeWare, and (iii) none of the proceeds of the
indebtedness evidenced by the Loan Agreement and the Amended Loan Agreement have
been or will be distributed to the shareholders of KnowledgeWare.  Based on such
representations and the terms of the Loan Agreement and the Amended Loan
Agreement, inter alia, the indebtedness evidenced by the Amended Loan Agreement
           ----- ----                                                          
should, more likely than not, be treated as true debt for Federal income tax
purposes.  Accordingly, although it is not free from doubt, Revenue Ruling 72-
343 is factually distinguishable from the case at hand and should not apply to
the Merger.
<PAGE>
 
Sterling Software, Inc
October 27, 1994
Page 5




     The Service has also ruled that the exchange of cash for newly issued
shares of target stock simultaneously with the consummation of a Code Section
368(a)(1)(B) stock acquisition was not to be treated as part of the acquisition
transaction; provided, that none of the proceeds from the issuance were
distributed to target shareholders.  Rev. Rul. 72-522, 1972-2 C.B. 215.  The
equity investment in the target by the acquiring corporation did not, therefore,
adversely affect the tax-free acquisition of the target's previously issued
shares from its existing shareholders.  The result is the same in the context of
a reorganization under Section 368(a)(2)(E) of the Code.  Treas. Reg. (S) 1.368-
2(j)(7), Example 7.  If all or part of the indebtedness evidenced by the Amended
Loan Agreement is not treated as true debt for Federal income tax purposes it
would seem that the portion not so treated must be recharacterized as an
additional equity investment in KnowledgeWare.  See Amory Cotton Oil Co. v.
                                                ---------------------------
United States, 468 F.2d 1046 (5th Cir. 1972); Gamman v. Commissioner, 46 T.C. 1
- -------------                                 ----------------------           
(1966).  Counsel is of the opinion that only the portion, if any, of the
indebtedness representing advances made by Sterling after its acquisition from
IBM Credit would be subject to recharacterization as equity for Federal income
tax purposes (although there can be no assurance that the Service or the courts
would agree).  In such case, Sterling should be treated as having acquired an
additional class of stock of KnowledgeWare, with a value equal to the amount of
such advances at the Effective Time, in a transaction covered by the holding in
Revenue Ruling 72-522 and the provisions of Example 7 of Treas. Reg. (S) 1.368-
2(j)(7).  Accordingly, satisfaction of the statutory requirements of Code
Sections 368(a)(1)(B) and 368(a)(2)(E) would not be adversely affected by the
recharacterization of the Sterling advances.  Also, assuming that no portion of
Sterling's advances have been or will be distributed to KnowledgeWare
stockholders, satisfaction of the Continuity requirement would not be adversely
affected by such recharacterization because, based on Revenue Ruling 72-522 and
Treas. Reg. (S) 1.368-2(j)(7), Example 7, the recharacterized advances would not
constitute part of the consideration paid by Sterling for the stock of
KnowledgeWare acquired from KnowledgeWare stockholders by Sterling in the Merger
transaction.

     The foregoing discussion addresses only those issues which we have deemed
of particular significance in rendering this opinion and is not a complete
discussion of all of the issues and requirements we have considered.  Based upon
the foregoing discussion and our consideration of such other matters as we have
deemed necessary or appropriate, and subject to the conditions, qualifications
and assumptions contained herein, although it is not free from doubt, we are of
the opinion that it is more likely than not that:

          (i)  The Merger will constitute a reorganization within the meaning of
               Section 368(a) of the Code;
<PAGE>
 
Sterling Software, Inc.
October 27, 1994
Page 6




          (ii)  Sterling, Merger Sub and KnowledgeWare will each be a party to
                the reorganization within the meaning of Section 368(b) of the
                Code; and

         (iii)  No gain or loss will be recognized by Sterling or Merger Sub as
                a result of the Merger.

     Except as specifically set forth above, we express no opinion as to the tax
consequences to any party, whether federal, state, local or foreign, of the
Merger or of any transactions related to the Merger.  We express no opinion as
to any transactions whatsoever if any of the transactions described in the
Merger Agreement are not consummated in accordance with the terms of the Merger
Agreement and the related agreements and documents.  This opinion represents
only our best legal judgment as to the probable Federal income tax consequences
of the Merger and is not binding on the Service or the courts.  The conclusions
stated herein are based on the Code and the Treasury Regulations thereunder,
judicial decisions, and administrative rulings and pronouncements as of the date
hereof.  No assurance can be given that contrary positions will not be asserted
by the Service nor that future legislative, judicial or administrative changes
will not adversely affect the accuracy of the conclusions stated herein.

     This opinion is provided to you solely for purposes of complying with the
requirements of Item 21(a) of Form S-4 under the Act.  We hereby consent to the
use of this opinion as an exhibit to the Registration Statement and to the
reference to this Firm in the Registration Statement under the caption "Legal
Matters."  In giving this consent we do not thereby admit that we come within
the category of persons whose consent is required under Section 7 of the Act or
the rules and regulations of the Securities and Exchange Commission promulgated
thereunder.  Without our prior written consent, this opinion may not otherwise
be quoted or referred to in whole or in part in any report or document or
furnished to any other person or entity other than your counsel or your
employees, except in response to a valid subpoena or other lawful process.



                                    Very truly yours,

                                    /s/JACKSON & WALKER, L.L.P.
<PAGE>
 
                                October 27, 1994

Jackson & Walker, L.L.P.
901 Main Street
Suite 6000
Dallas, Texas 75202


     Re:  Amended and Restated Agreement and Plan of Merger among KnowledgeWare,
          Inc. ("KnowledgeWare" or, after the Merger, the "Surviving
          Corporation"), SSI Corporation ("Merger Sub"), and Sterling Software,
          Inc. ("Sterling"), entered into August 31, 1994 (as amended through
          the date hereof, the "Merger Agreement").


Gentlemen:

     In connection with (i) the proposed merger (the "Merger") of Merger Sub
with and into KnowledgeWare pursuant to the Merger Agreement, and (ii) the
registration by Sterling on Form S-4 (the "Registration Statement") under the
Securities Act of 1933, as amended (the "Act"), of the shares of Sterling Common
Stock to be issued in the Merger, you have rendered or will render certain legal
opinions pursuant to the requirements of Item 21(a) of Form S-4 under the Act,
conditioned, inter alia, on the receipt of this letter.  Capitalized terms used
             ----- ----                                                        
but not defined herein shall have the meanings assigned to them in the
Registration Statement including all attachments thereto.  When relevant to the
context, references herein to KnowledgeWare and Sterling shall include all
subsidiaries thereof.

     In connection with your opinions, and recognizing that you will rely on
this letter in rendering your opinions, the undersigned, duly authorized
officers of Sterling acting as such, hereby certify to you, that, to the best
knowledge of Sterling's executive officers ("Sterling Management"), as of the
date hereof, (i) the facts relating to the Merger as described in the prospectus
included as part of the Registration Statement ("Prospectus"), including all
attachments thereto, are true, correct and complete in all material respects,
and (ii) each of the following representations and warranties are true, correct
and complete in all material respects.  To the extent this certification
pertains to any person other than Sterling, Merger Sub or the Surviving
Corporation, such certification is only as to the actual knowledge of Sterling
Management without inquiry.  We understand that you may reaffirm your opinions
as of the effective date of the Registration Statement and any post effective
amendment thereto, and as of the Effective Time of the Merger, and that, in
connection with such reaffirmation, you will require that this certification be
confirmed as of such times.
<PAGE>
 
Jackson & Walker, L.L.P
October 27, 1994
Page 2


     1.   The Merger, if consummated, will be consummated in compliance with all
material terms and conditions of the Merger Agreement, none of which have been
waived or modified, except as disclosed in the schedule attached hereto, if any.

     2.   The ratio for the exchange of shares of KnowledgeWare Common Stock for
Sterling Common Stock (the "Exchange Ratio") in the Merger was negotiated
through arm's length bargaining.  Alex. Brown & Sons Incorporated ("Alex.
Brown") delivered to the KnowledgeWare Board of Directors its written opinion,
dated August 31, 1994, that as of that date the Exchange Ratio was fair, from a
financial point of view, to the holders of KnowledgeWare Common Stock.  Except
as disclosed in the schedule attached hereto, if any, the written opinion of
Alex. Brown has not been withdrawn or materially modified.  Based on the arm's
length negotiations and the written opinion of Alex. Brown, Sterling Management
believes the fair market value of the Sterling Common Stock to be received by
each KnowledgeWare shareholder in the Merger will be approximately equal to the
fair market value of the KnowledgeWare Common Stock surrendered in exchange
therefor.

     3.   There is no present plan or intention by the shareholders of
KnowledgeWare to sell, exchange, or otherwise dispose of a number of shares of
Sterling Common Stock to be received in the Merger that would reduce the
KnowledgeWare shareholders' aggregate ownership of Sterling Common Stock to be
received in the Merger to a number of shares having a value, as of the date of
the Merger, of less than 50 percent of the value of all of the formerly
outstanding shares of KnowledgeWare Common Stock as of the same date.  For
purposes of this representation, (i) shares of KnowledgeWare Common Stock
exchanged for cash in lieu of fractional shares of Sterling Common Stock are
treated as outstanding on the date of the Merger, and (ii) shares of
KnowledgeWare Common Stock, and shares of Sterling Common Stock received
therefor in the Merger, and otherwise sold, redeemed, or disposed of before or
after the Merger are considered in making this representation.

     4.   Following the Merger, the Surviving Corporation will hold at least 90
percent of the fair market value of KnowledgeWare's net assets and at least 70
percent of the fair market value of KnowledgeWare's gross assets held
immediately prior to the Merger, and at least 90 percent of the fair market
value of Merger Sub's net assets and at least 70 percent of the fair market
value of Merger Sub's gross assets held immediately prior to the Merger.  For
purposes of this representation, amounts used by KnowledgeWare, Surviving
Corporation or Merger Sub to pay reorganization expenses, and all redemptions
and distributions (except for regular, normal dividends) made in anticipation of
or as a part of the plan of reorganization for the Merger, will be included as
assets of KnowledgeWare or Merger Sub, respectively, immediately prior to the
Merger.  In applying the preceding sentence to Merger Sub, assets transferred by
Sterling to Merger Sub pursuant to the plan of reorganization for use in the
Merger are not taken into account.  For purposes of this representation, assets
transferred by the Surviving Corporation in the ordinary course of business or
to a corporation controlled, within the meaning of Section
<PAGE>
 
Jackson & Walker, L.L.P.
October 27, 1994
Page 3


368(c) of the Internal Revenue Code of 1986, as amended (the "Code"), by the
Surviving Corporation shall be treated as assets held by the Surviving
Corporation following the Merger.

     5.   Prior to the Merger, Sterling will be in control of Merger Sub within
the meaning of Section 368(c) of the Code.

     6.   Sterling has no plan or intention to cause the Surviving Corporation
to issue additional shares of stock, and the Surviving Corporation has no plan
or intention to issue additional shares of stock, that would result in Sterling
losing control, within the meaning of Section 368(c) of the Code, of the
Surviving Corporation.

     7.   Except with respect to the Escrowed Shares, Sterling has no plan or
intention to reacquire any of the shares of Sterling Common Stock issued in the
Merger.  Any future open market purchases by Sterling of shares of Sterling
Common Stock will be motivated solely by business considerations independent of
the Merger.

     8.   Sterling has no plan or intention to liquidate the Surviving
Corporation, to merge the Surviving Corporation into another corporation, to
sell or otherwise dispose of the stock of the Surviving Corporation, or to cause
the Surviving Corporation to sell or otherwise dispose of any of its assets or
of any of the assets acquired from Merger Sub, except for dispositions of assets
made in the ordinary course of business, transfers of assets by the Surviving
Corporation to corporations controlled, within the meaning of Section 368(c) of
the Code, by the Surviving Corporation, and transfers by Sterling of shares of
the Surviving Corporation's stock to corporations controlled, within the meaning
of Section 368(c) of the Code, by Sterling.

     9.   Merger Sub is a recently formed corporation, having no assets or
liabilities other than assets transferred to it pursuant to the Merger, and
Merger Sub has been created and will be maintained through the Effective Time
solely for purposes of effecting the Merger.  Merger Sub will have no
liabilities assumed by KnowledgeWare, and will not transfer to KnowledgeWare any
assets subject to liabilities, in the Merger.  Merger Sub has not and will not
engaged in the conduct of any business unrelated to the Merger prior to the
Effective Time.

     10.  Following the Merger, the Surviving Corporation directly or through
its subsidiaries will continue KnowledgeWare's historic business or use a
significant portion of KnowledgeWare's historic business assets in a business
(within the meaning of Treasury Regulation (S) 1.368-1(d)).

     11.  Sterling, Merger Sub and KnowledgeWare, and the shareholders of
KnowledgeWare, will pay their respective expenses, if any, incurred in
connection with the Merger.
<PAGE>
 
Jackson & Walker, L.L.P
October 27, 1994
Page 4


     12.  There is no intercorporate indebtedness existing between Sterling and
KnowledgeWare or between Merger Sub and KnowledgeWare that was issued or
acquired at a discount, or that will be settled at a discount.

     13.  In the Merger, shares of KnowledgeWare Common Stock representing
control of KnowledgeWare, within the meaning of Section 368(c) of the Code, will
be exchanged solely for voting stock of Sterling.  For purposes of this
representation, any shares of KnowledgeWare Common Stock exchanged for cash or
other property originating with Sterling will be treated as outstanding
KnowledgeWare Common Stock immediately prior to the Merger.

     14.  At the time of the Merger, KnowledgeWare will not have outstanding any
warrants, options, convertible securities, or any other type of right pursuant
to which any person could acquire stock in KnowledgeWare that, if exercised or
converted, would affect Sterling's acquisition or retention of control of
KnowledgeWare, within the meaning of Section 368(c) of the Code.

     15.  Except for one share of KnowledgeWare Common Stock acquired by
Sterling on November 18, 1991, Sterling does not directly own, nor has it
directly owned during the past five years, any shares of stock of KnowledgeWare.

     16.  KnowledgeWare and Sterling are not investment companies as defined in
Section 368(a)(2)(F)(iii) and (iv) of the Code.

     17.  On the date of the Merger, the fair market value of the assets of
KnowledgeWare will exceed the sum of its liabilities, including the amount of
liabilities, if any, to which its assets are subject.

     18.  KnowledgeWare is not under the jurisdiction of a court in a Title 11
or similar case within the meaning of Section 368(a)(3)(A) of the Code.

     19.  The payment by the Exchange Agent of cash in lieu of fractional shares
of Sterling Common Stock does not represent separately bargained for
consideration and is being made solely for the purpose of saving the expense and
inconvenience of issuing fractional shares. The fractional share interests of
each holder of KnowledgeWare Common Stock will be aggregated and no holder of
KnowledgeWare Common Stock will receive cash therefor in an amount equal to or
greater than the value of one full share of Sterling Common Stock.

     20.  Sterling has not paid and will not pay, directly or indirectly, any
compensation to any shareholder-employee of KnowledgeWare pursuant to any
employment, consulting, non-compete or similar arrangement that is separate
consideration for, or allocable to, any of such shareholder's shares of
KnowledgeWare Common Stock.  None of the shares of Sterling
<PAGE>
 
Jackson & Walker, L.L.P.
October 27, 1994
Page 5


Common Stock received by any shareholder of KnowledgeWare pursuant to the Merger
will be separate consideration for, or allocable to, any such arrangement.
Based on Sterling Management's consultation with an independent third party
advisor, compensation paid by Sterling, Merger Sub or the Surviving Corporation
pursuant to the Consultation Agreement will be for services actually rendered
(or refrained from being rendered) and will be commensurate with amounts paid
under similar arrangements to third parties bargaining at arm's-length.

     21.  Based on Sterling Management's (i) consultation with independent third
party advisors, and (ii) analysis of KnowledgeWare's financial condition
preceding the Merger, all loans or advances by Sterling or Merger Sub to
KnowledgeWare, including, without limitation, the acquisition by Sterling of the
Loan Agreement and Sterling's rights and obligations under the amended loan
agreement (as amended through the date of this letter, the "Amended Loan
Agreement") and the Warrant Agreement, have been or will be made on an arm's-
length basis with terms comparable to those which would have been obtained by an
unaffiliated, independent third party in the practice of making loans of
comparable risk, and were, or will be, adequately collateralized when made or
acquired. There is no plan or intention that any part of any such loan will be
forgiven or converted, directly or indirectly, into a capital contribution to
KnowledgeWare or the Surviving Corporation. No liabilities of KnowledgeWare's
shareholders will be assumed by Sterling, nor will any of the stock of the
Surviving Corporation be subject to any liabilities which may have encumbered
stock of KnowledgeWare at the time of the Merger. There are no arrangements in
effect pursuant to which any shareholder of KnowledgeWare has guarantied or
otherwise assumed liability for any indebtedness or other obligation of
KnowledgeWare. No portion of the proceeds received by KnowledgeWare from loans
or advances made by Sterling or IBM Credit pursuant to the Loan Agreement and
the Amended Loan Agreement have been or will be distributed or otherwise paid
out to KnowledgeWare shareholders. The maximum aggregate of the loans or
advances which may be outstanding to KnowledgeWare at any time pursuant to the
Amended Loan Agreement is $28,000,000.00. The aggregate of the loans and
advances under the Loan Agreement at the time Sterling acquired IBM Credit's
interest therein was $15,133,270.00.

     22.  Sterling and KnowledgeWare have a valid business reason for
establishing the arrangement contemplated by the Escrow Agreement (the "Escrow
Arrangement").

     23.  As of the Effective Time, the Escrowed Shares will appear as issued
and outstanding on Sterling's balance sheet and will be legally outstanding
under Delaware law.

     24.  All dividends (within the meaning of Section 301(c)(1) of the Code)
paid by Sterling on the Escrowed Shares will be distributed currently to the
exchanging KnowledgeWare shareholders, except any such dividends paid in respect
of Escrowed Shares as to which a claim exists pursuant to a Sterling Notice.
<PAGE>
 
Jackson & Walker, L.L.P.
October 27, 1994
Page 6


     25.  All voting rights of the Escrowed Shares will be exercisable by or on
behalf of the exchanging KnowledgeWare shareholders or their authorized agent.

     26.  The Escrowed Shares will not be subject to restrictions requiring
their return to Sterling upon the death, failure to continue employment or
similar event with respect to any exchanging KnowledgeWare shareholder.

     27.  All Escrowed Shares will be released under the Escrow Arrangement
within two years from the Effective Time, other than Escrowed Shares that are
subject to a Dispute Notice or a Contingent Claim Notice at the expiration of
such two year period.

     28.  No more than 50% of the shares of Sterling Common Stock to be received
in the Merger by the exchanging KnowledgeWare shareholders are subject to the
Escrow Arrangement.

     29.  The principal purpose for the Escrow Arrangement is not the reduction
of federal income taxes.

     30.  The mechanism for the calculation of the number of Escrowed Shares to
be returned to Sterling is objective and readily ascertainable.

     31.  The exchanging KnowledgeWare shareholders do not have the right to,
and will not be permitted to, substitute other property for any of the Escrowed
Shares.

     This letter is being furnished to you solely for your benefit and for use
in rendering your opinions in connection with the Merger and the Registration
Statement and is not to be used, circulated, quoted or otherwise referred to for
any other purpose without the express written consent of Sterling.

                                    Very truly yours,


                                    /s/ Sterling L. Williams
                                    Sterling L. Williams
                                    President and Chief Executive
                                    Officer



                                    /s/ James E. Jenkins, Jr.
                                    James E. Jenkins, Jr.
                                    Vice President, Tax
<PAGE>
 
                           [KnowledgeWare Letterhead]



                                October 27, 1994


Jackson & Walker, L.L.P.
901 Main Street
Suite 6000
Dallas, Texas  75202


     Re:  Amended and Restated Agreement and Plan of Merger among
          KnowledgeWare, Inc. ("KnowledgeWare" or, after the Merger, the
          "Surviving Corporation"), SSI Corporation ("Merger Sub"), and Sterling
          Software, Inc. ("Sterling"), entered into August 31, 1994 (as amended
          through the date hereof, the "Merger Agreement").


Gentlemen:

     In connection with (i) the proposed merger (the "Merger") of Merger Sub
with and into KnowledgeWare pursuant to the Merger Agreement, and (ii) the
registration by Sterling on Form S-4 (the "Registration Statement") under the
Securities Act of 1933, as amended (the "Act"), of the shares of Sterling Common
Stock to be issued in the Merger, you have rendered or will render certain legal
opinions pursuant to the requirements of Item 21(a) of Form S-4 under the Act,
conditioned, inter alia, on the receipt of this letter.  Capitalized terms used
             ----- ----                                                        
but not defined herein shall have the meanings assigned to them in the
Registration Statement including all attachments thereto.  When relevant to the
context, references herein to KnowledgeWare and Sterling shall include all
subsidiaries thereof.

     In connection with your opinions, and recognizing that you will rely on
this letter in rendering your opinions, the undersigned, duly authorized
officers of KnowledgeWare acting as such, hereby certify to you, that, to the
best knowledge of KnowledgeWare's executive officers actively performing service
("KnowledgeWare Management"), as of the date hereof, (i) the facts relating to
the Merger as described in the prospectus included as part of the Registration
Statement ("Prospectus"), including all attachments thereto, are true, correct
and complete in all material respects, and (ii) each of the following
representations and warranties are true, correct and complete in all material
respects.  To the extent this certification pertains to any person other than
<PAGE>
 
KnowledgeWare, such certification is only as to the actual knowledge of
KnowledgeWare Management without inquiry.  We understand that you may reaffirm
your opinions as of the effective date of the Registration Statement and any
post effective amendment thereto, and as of the Effective Time of the Merger,
and that, in connection with such reaffirmation, you will require that this
certification be confirmed as of such times.

          1.   The Merger, if consummated, will be in compliance with all
               material terms and conditions of the Merger Agreement, none of
               which have been waived or modified.

          2.   The ratio for the exchange of shares of KnowledgeWare Common
               Stock for Sterling Common Stock (the "Exchange Ratio") in the
               Merger was negotiated through arm's length bargaining.  Alex.
               Brown & Sons Incorporated ("Alex. Brown") delivered to the
               KnowledgeWare Board of Directors its written opinion, dated
               August 31, 1994, that as of that date the Exchange Ratio was
               fair, from a financial point of view, to the holders of
               KnowledgeWare Common Stock.  The written opinion of Alex. Brown
               has not been withdrawn or materially modified.  Based on the
               arm's length negotiations and the written opinion of Alex. Brown,
               KnowledgeWare Management believes the fair market value of the
               Sterling Common Stock to be received by each KnowledgeWare
               shareholder in the Merger will be approximately equal to the fair
               market value of the KnowledgeWare Common Stock surrendered in
               exchange therefor.

          3.   There is no present plan or intention by  shareholders of
               KnowledgeWare to sell, exchange or otherwise dispose of a number
               of shares of Sterling Common Stock to be received in the Merger
               that would reduce the KnowledgeWare shareholders' aggregate
               ownership of Sterling Common Stock to be received in the Merger
               to a number of shares having a value, as of the date of the
               Merger, of less than 50 percent of the value of all of the
               formerly outstanding shares of KnowledgeWare Common Stock as of
               the same date.  For purposes of this representation, (i) shares
               of KnowledgeWare Common Stock exchanged for cash in lieu of
               fractional shares of Sterling Common Stock are treated as
               outstanding on the date of the Merger, and (ii) shares of
               KnowledgeWare Common Stock, and shares of Sterling Common Stock
               received therefor in the Merger, and otherwise sold, redeemed, or
               disposed of before or after the Merger are considered in making
               this representation.
<PAGE>
 
          4.   Following the Merger, the Surviving Corporation will hold at
               least 90 percent of the fair market value of KnowledgeWare's net
               assets and at least 70 percent of the fair market value of
               KnowledgeWare's gross assets held immediately prior to the
               Merger, and at least 90 percent of the fair market value of
               Merger Sub's net assets and at least 70 percent of the fair
               market value of Merger Sub's gross assets held immediately prior
               to the Merger.  For purposes of this representation, amounts used
               by KnowledgeWare, Surviving Corporation or Merger Sub to pay
               reorganization expenses, and all redemptions and distributions
               (except for regular, normal dividends) made in anticipation of or
               as a part of the plan or reorganization for the Merger, will be
               included as assets of KnowledgeWare or Merger Sub, respectively,
               immediately prior to the Merger.  In applying the preceding
               sentence to Merger Sub, assets transferred by Sterling to Merger
               Sub pursuant to the plan of reorganization for use in the Merger
               are not taken into account.  For purposes of this representation,
               assets transferred by Surviving Corporation in the ordinary
               course of business or to a corporation controlled, within the
               meaning of Section 368(c) of the Code, by KnowledgeWare shall be
               treated as assets held by Surviving Corporation following the
               Merger.

          5.   Prior to the Merger, Sterling will be in control of Merger Sub
               within the meaning of Section 368(c) of the Code.

          6.   Sterling has no plan or intention to cause the Surviving
               Corporation to issue additional shares of stock, and the
               Surviving Corporation has no plan or intention to issue
               additional shares of stock, that would result in Sterling losing
               control, within the meaning of Section 368(c) of the Code, of the
               Surviving Corporation.

          7.   Except with respect to the shares of Sterling Common Stock which
               are held in escrow in accordance with the Escrow Agreement (the
               "Escrowed Shares"), Sterling has no plan or intention to
               reacquire any of the shares of Sterling Common Stock issued in
               the Merger.  Any future open market purchases by Sterling of
               shares of Sterling Common Stock will be motivated solely by
               business considerations independent of the Merger.

          8.   Sterling has no plan or intention to liquidate Surviving
               Corporation into another corporation, to merge Surviving
               Corporation into another corporation, to sell or otherwise
               dispose of the
<PAGE>
 
               stock of Surviving Corporation, or to cause Surviving Corporation
               to sell or otherwise dispose of any of its assets or of any of
               the assets acquired from Merger Sub, except for dispositions of
               assets made in the ordinary course of business, transfers of
               assets by Surviving Corporation to corporations controlled,
               within the meaning of Section 368(c) of the Internal Revenue Code
               of 1986, as amended (the "Code"), by Surviving Corporation and
               transfers by Sterling of shares of Surviving Corporation's stock
               to corporations controlled, within the meaning of Section 368(c)
               of the Code, by Sterling.

          9.   Merger Sub is a recently formed corporation, having no assets or
               liabilities other than assets transferred to it pursuant to the
               Merger, and Merger Sub has been created and will be maintained
               through the Effective Time solely for purposes of effecting the
               Merger.  Merger Sub will have no liabilities assumed by
               KnowledgeWare, and will not transfer to KnowledgeWare any assets
               subject to liabilities, in the Merger.  Merger Sub has not and
               will not engage in the conduct of any business unrelated to the
               Merger prior to the Effective Time.

          10.  Following the Merger, Surviving Corporation directly or through
               its subsidiaries will continue KnowledgeWare's historic business
               or use a significant portion of KnowledgeWare's historic business
               assets in a business within the meaning of Treasury Regulation
               (S)1.368-1(d).

          11.  Sterling, Merger Sub, KnowledgeWare and the shareholders of
               KnowledgeWare, will pay their respective expenses, if any,
               incurred in connection with the Merger.

          12.  There is no intercorporate indebtedness existing between Sterling
               and KnowledgeWare or between Merger Sub and KnowledgeWare that
               was issued, acquired, or will be settled at a discount.
 
          13.  In the Merger, shares of KnowledgeWare Common Stock representing
               control of KnowledgeWare, within the meaning of Section 368(c) of
               the Code, will be exchanged solely for voting stock of Sterling.
               For purposes of this representation, any shares of KnowledgeWare
               Common Stock exchanged for cash or other property originating
               with Sterling will be treated as outstanding KnowledgeWare Common
               Stock immediately prior to Merger.
<PAGE>
 
          14.  At the time of the Merger, KnowledgeWare will not have
               outstanding any warrants, options, convertible securities, or any
               other type of right pursuant to which any person could acquire
               stock in KnowledgeWare that, if exercised or converted, would
               affect Sterling's acquisition or retention of control of
               KnowledgeWare, within the meaning of Section 368(c) of the Code.

          15.  Except for one share of KnowledgeWare Common Stock acquired by
               Sterling on November 18, 1991, Sterling does not directly own,
               nor has it directly owned  during the past five years, any shares
               of stock of KnowledgeWare.

          16.  KnowledgeWare and Sterling are not investment companies as
               defined in Section 368(a)(2)(F)(iii) and (iv) of the Code.

          17.  On the date of the Merger, the fair market value of the assets of
               KnowledgeWare will exceed the sum of its liabilities, including
               the amount of liabilities, if any, to which its assets are
               subject.

          18.  KnowledgeWare is not under the jurisdiction of a court in a Title
               11 or similar case within the meaning of Section 368(a)(3)(A) of
               the Code.

          19.  The payment by the Exchange Agent of cash in lieu of fractional
               shares of Sterling Common Stock does not represent separately
               bargained for consideration and is being made solely for the
               purpose of saving the expense and inconvenience of issuing
               fractional shares.  The fractional share interests of each holder
               of KnowledgeWare Common Stock will be aggregated and no holder of
               KnowledgeWare Common Stock will receive cash therefor in an
               amount equal to or greater than the value of one full share of
               Sterling Common Stock.

          20.  Sterling has not paid and will not pay, directly or indirectly,
               any compensation to any shareholder-employee of KnowledgeWare
               pursuant to any employment, consulting, non-compete or similar
               arrangement that is separate consideration for, or allocable to,
               any of such shareholder's shares of KnowledgeWare Common Stock.
               None of the shares of Sterling Common Stock received by any
               shareholder of KnowledgeWare pursuant to the Merger will be
               separate consideration for, or allocable to, any such
               arrangement.  Compensation paid by Sterling, Merger Sub or
               Surviving Corporation pursuant to the Consultation Agreement will
               be for services
<PAGE>
 
               actually rendered (or refrained from being rendered) and will be
               commensurate with amounts paid under similar arrangements to
               third parties bargaining at arm's-length.

          21.  All loans or advances by Sterling or Merger Sub to KnowledgeWare,
               including, without limitation, the acquisition by Sterling of the
               Loan Agreement and Sterling's rights and obligations under that
               certain Amended and Restated Loan and Security Agreement dated as
               of August 31, 1994, by and between Sterling and KnowledgeWare as
               amended through the date hereof (the "Amended Loan
               Agreement") and the Warrant Agreement, have been or will be made
               on an arm's length basis and are or will be adequately
               collateralized. There is no plan or intention that any part of
               any such loan will be forgiven or converted, directly or
               indirectly, into a capital contribution to KnowledgeWare. No
               liabilities of KnowledgeWare's shareholders will be assumed by
               Sterling, nor will any of the stock of KnowledgeWare be subject
               to any liabilities which may have encumbered stock of
               KnowledgeWare at the time of the Merger. There are no
               arrangements in effect pursuant to which any shareholder of
               KnowledgeWare has guarantied or otherwise assumed liability for
               any liabilities or obligations of KnowledgeWare. No portion of
               the proceeds received by KnowledgeWare from loans or advances
               made by Sterling or IBM Credit pursuant to the Loan Agreement or
               the Amended Loan Agreement have been or will be distributed or
               otherwise paid out to KnowledgeWare shareholders. The maximum
               aggregate of the loans or advances which may be outstanding to
               KnowledgeWare at any time pursuant to the Amended Loan Agreement
               is $28,000,000.00. The aggregate of the loans and advances under
               the Loan Agreement at the time Sterling acquired IBM Credit's
               interest therein was $15,133,270.00.

          22.  The outstanding KnowledgeWare Options had no readily
               ascertainable fair market value within the meaning of Treasury
               Regulations Section 1.83-7(b) when granted, and will have no
               readily ascertainable fair market value within the meaning of
               Treasury Regulations Section 1.83-7(b) when substituted as
               provided in Sections 4.1(iii) and 4.1(vi) of the Merger
               Agreement.

          23.  Sterling and KnowledgeWare have a valid business reason for
               establishing the arrangement contemplated by the Escrow Agreement
               (the "Escrow Arrangement").

          24.  As of the Effective Time, the Escrowed Shares will appear as
               issued and outstanding on Sterling's balance sheet and will be
               legally outstanding under Delaware law.
<PAGE>
 
          25.  All dividends (within the meaning of Section 301(c)(1) of the
               Code) paid by Sterling on the Escrowed Shares will be distributed
               currently to the exchanging KnowledgeWare shareholders, except
               any such dividends paid in respect of Escrowed Shares as to which
               a claim exists pursuant to a Sterling Notice.

          26.  All voting rights of the Escrowed Shares will be exercisable by
               or on behalf of the exchanging KnowledgeWare shareholders or
               their authorized agent.

          27.  The Escrowed Shares will not be subject to restrictions requiring
               their return to Sterling upon the death, failure to continue
               employment or similar event with respect to any exchanging
               KnowledgeWare shareholder.

          28.  All Escrowed Shares will be released under the Escrow Arrangement
               within two years from the Effective Time, other than Escrowed
               Shares that are subject to a Dispute Notice or a Contingent Claim
               Notice at the expiration of such two year period.

          29.  No more than 50% of the shares of Sterling Common Stock to be
               received in the Merger by the exchanging KnowledgeWare
               shareholders are subject to the Escrow Arrangement.

          30.  The principal purpose for the Escrow Arrangement is not the
               reduction of federal income taxes.

          31.  The mechanism for the calculation of the number of Escrowed
               Shares to be returned to Sterling is objective and readily
               ascertainable.

          32.  The exchanging KnowledgeWare shareholders do not have the right
               to, and will not be permitted to, substitute other property for
               any of the Escrowed Shares.

          33.  KnowledgeWare has not within the past twelve (12) months made any
               distribution to its shareholders and has not sold or otherwise
               disposed of a substantial portion of its assets.
<PAGE>
 
     This letter is being furnished to you solely for your benefit and for use
in rendering your opinions in connection with the Merger and the Registration
Statement and is not to be used, circulated, quoted or otherwise referred to for
any other purpose without the express written consent of KnowledgeWare.

                                    Very Truly Yours,


                                    /s/ Francis A. Tarkenton
                                    --------------------------
                                    Francis A. Tarkenton,
                                    Chairman of the Board and
                                    Chief Executive Officer


                                    /s/ Richard M. Haddrill
                                    --------------------------
                                    Richard M. Haddrill,
                                    Executive Vice President
                                    and Secretary


                                    /s/ Rick W. Gossett
                                    --------------------------
                                    Rick W. Gossett,
                                    Chief Financial Officer,
                                    Treasurer and Assistant
                                    Vice President

<PAGE>
 
                                                                Exhibit 8.2     



                                October 27, 1994



KnowledgeWare, Inc.
3340 Peachtree Road, N.E.
Atlanta, Georgia  30326


     We have acted as counsel to KnowledgeWare, Inc. ("KnowledgeWare") in
connection with the Amended and Restated Agreement and Plan of Merger, dated as
of August 31, 1994, as amended through the date hereof (the "Merger Agreement"),
among Sterling Software, Inc., a Delaware corporation ("Sterling"), SSI
Corporation, a Georgia corporation ("Merger Sub") and KnowledgeWare.  The Merger
Agreement calls for the merger of Merger Sub with and into KnowledgeWare (the
"Merger"), and this letter is in response to your request for our opinion with
respect to certain United States Federal income tax consequences of the Merger.
Capitalized terms used but not defined herein shall have the meanings assigned
to them in the registration statement of Sterling on Form S-4 under the
Securities Act of 1933, as amended, covering the shares of Sterling Common Stock
to be issued in the Merger.

     In this connection, we have examined the Merger Agreement, and have relied
upon the representations and warranties as to factual matters contained therein
or made pursuant thereto.  We have also assumed, without inquiry, the initial
and continuing truth and accuracy of the representations, statements and
certifications of the officers of KnowledgeWare and Sterling, including without
limitation, the representations described below in a letter dated October 27,
1994, from Sterling (a copy of which is attached hereto as Exhibit "A")and in a
letter dated October 27, 1994, from KnowledgeWare (a copy of which is attached
hereto as Exhibit "B"), and we have considered such additional information as we
have deemed appropriate.

     In rendering this opinion we have examined such documents as we have deemed
relevant or necessary to enable us to render this opinion, including, without
limitation, the Merger Agreement and the unexecuted form of the Escrow
Agreement.  In our examination, we have assumed the genuineness of all
signatures, the due execution and delivery of all documents (including without
limitation the Escrow Agreement), the legal capacity of all natural persons, the
authenticity of all documents submitted to us as originals, the conformity to
original documents of all documents submitted to us as certified, conformed or
copies, and the authenticity of the originals of such copies.
<PAGE>
 
KnowledgeWare, Inc.
October 27, 1994
Page 2

- ---------------------------------



I.  REPRESENTATIONS

     In connection with the proposed Merger, the following representations have
been made by certain executive officers of Sterling and/or KnowledgeWare:

          1.   The Merger, if consummated, will be in compliance with all
               material terms and conditions of the Merger Agreement, none of
               which have been waived or modified.

          2.   The ratio for the exchange of shares of KnowledgeWare Common
               Stock for Sterling Common Stock (the "Exchange Ratio") in the
               Merger was negotiated through arm's length bargaining.  Alex.
               Brown & Sons Incorporated ("Alex. Brown") delivered to the
               KnowledgeWare Board of Directors its written opinion, dated
               August 31, 1994, that as of that date the Exchange Ratio was
               fair, from a financial point of view, to the holders of
               KnowledgeWare Common Stock.  The written opinion of Alex. Brown
               has not been withdrawn or materially modified.  Based on the
               arm's length negotiations and the written opinion of Alex. Brown,
               KnowledgeWare executive officers and Sterling executive officers
               believe the fair market value of the Sterling Common Stock to be
               received by each KnowledgeWare shareholder in the Merger will be
               approximately equal to the fair market value of the KnowledgeWare
               Common Stock surrendered in exchange therefor.

          3.   There is no present plan or intention by  shareholders of
               KnowledgeWare to sell, exchange or otherwise dispose of a number
               of shares of Sterling Common Stock to be received in the Merger
               that would reduce the KnowledgeWare shareholders' aggregate
               ownership of Sterling Common Stock to be received in the Merger
               to a number of shares having a value, as of the date of the
               Merger, of less than 50 percent of the value of all of the
               formerly outstanding shares of KnowledgeWare Common Stock as of
               the same date.  For purposes of this representation, (i) shares
               of KnowledgeWare Common Stock exchanged for cash in lieu of
               fractional shares of Sterling Common Stock are treated as
               outstanding on the date of the Merger, and (ii)
<PAGE>
 
KnowledgeWare, Inc.
October 27, 1994
Page 3
- ---------------------------------



               shares of KnowledgeWare Common Stock, and shares of Sterling
               Common Stock received therefor in the Merger, and otherwise sold,
               redeemed, or disposed of before or after the Merger are
               considered in making this representation.

          4.   Following the Merger, Surviving Corporation ("Surviving
               Corporation" as used in this Part I being KnowledgeWare after the
               Merger) will hold at least 90 percent of the fair market value of
               KnowledgeWare's net assets and at least 70 percent of the fair
               market value of KnowledgeWare's gross assets held immediately
               prior to the Merger, and at least 90 percent of the fair market
               value of Merger Sub's net assets and at least 70 percent of the
               fair market value of Merger Sub's gross assets held immediately
               prior to the Merger.  For purposes of this representation,
               amounts used by KnowledgeWare, Surviving Corporation or Merger
               Sub to pay reorganization expenses, and all redemptions and
               distributions (except for regular, normal dividends) made in
               anticipation of or as a part of the plan or reorganization for
               the Merger, will be included as assets of KnowledgeWare or Merger
               Sub, respectively, immediately prior to the Merger.  In applying
               the preceding sentence to Merger Sub, assets transferred by
               Sterling to Merger Sub pursuant to the plan of reorganization for
               use in the Merger are not taken into account.  For purposes of
               this representation, assets transferred by Surviving Corporation
               in the ordinary course of business or to a corporation
               controlled, within the meaning of Section 368(c) of the Code, by
               KnowledgeWare shall be treated as assets held by Surviving
               Corporation following the Merger.

          5.   Prior to the Merger, Sterling will be in control of Merger Sub
               within the meaning of Section 368(c) of the Code.

          6.   Sterling has no plan or intention to cause Surviving Corporation
               to issue additional shares of stock, and Surviving Corporation
               has no plan or intention to issue additional shares of stock,
               that would result in Sterling losing control, within the meaning
               of Section 368(c) of the Code, of Surviving Corporation.
<PAGE>
 
KnowledgeWare, Inc.
October 27, 1994
Page 4

- ---------------------------------

          

          7.   Except with respect to the shares of Sterling Common Stock which
               are held in escrow in accordance with the Escrow Agreement (the
               "Escrowed Shares"), Sterling has no plan or intention to
               reacquire any of the shares of Sterling Common Stock issued in
               the Merger. Any future open market purchases by Sterling of
               shares of Sterling Common Stock will be motivated solely by
               business considerations independent of the Merger.

          8.   Sterling has no plan or intention to liquidate Surviving
               Corporation into another corporation, to merge Surviving
               Corporation into another corporation, to sell or otherwise
               dispose of the stock of Surviving Corporation, or to cause
               Surviving Corporation to sell or otherwise dispose of any of its
               assets or of any of the assets acquired from Merger Sub, except
               for dispositions of assets made in the ordinary course of
               business, transfers of assets by Surviving Corporation to
               corporations controlled, within the meaning of Section 368(c) of
               the Internal Revenue Code of 1986, as amended (the "Code"), by
               Surviving Corporation and transfers by Sterling of shares of
               Surviving Corporation's stock to corporations controlled, within
               the meaning of Section 368(c) of the Code, by Sterling.

          9.   Merger Sub is a recently formed corporation, having no assets or
               liabilities other than assets transferred to it pursuant to the
               Merger, and Merger Sub has been created and will be maintained
               through the Effective Time solely for purposes of effecting the
               Merger.  Merger Sub will have no liabilities assumed by
               KnowledgeWare, and will not transfer to KnowledgeWare any assets
               subject to liabilities, in the Merger.  Merger Sub has not and
               will not engage in the conduct of any business unrelated to the
               Merger prior to the Effective Time.

          10.  Following the Merger, Surviving Corporation directly or through
               its subsidiaries will continue KnowledgeWare's historic business
               or use a significant portion of KnowledgeWare's historic business
               assets in a business within the meaning of Treasury Regulation
               (S)1.368-1(d).
<PAGE>
 
KnowledgeWare, Inc.
October 27, 1994
Page 5

- ---------------------------------



          11.  Sterling, Merger Sub, KnowledgeWare and the shareholders of
               KnowledgeWare, will pay their respective expenses, if any,
               incurred in connection with the Merger.

          12.  There is no intercorporate indebtedness existing between Sterling
               and KnowledgeWare or between Merger Sub and KnowledgeWare that
               was issued, acquired, or will be settled at a discount.
 
          13.  In the Merger, shares of KnowledgeWare Common Stock representing
               control of KnowledgeWare, within the meaning of Section 368(c) of
               the Code, will be exchanged solely for voting stock of Sterling.
               For purposes of this representation, any shares of KnowledgeWare
               Common Stock exchanged for cash or other property originating
               with Sterling will be treated as outstanding KnowledgeWare Common
               Stock immediately prior to Merger.

          14.  At the time of the Merger, KnowledgeWare will not have
               outstanding any warrants, options, convertible securities, or any
               other type of right pursuant to which any person could acquire
               stock in KnowledgeWare that, if exercised or converted, would
               affect Sterling's acquisition or retention of control of
               KnowledgeWare, within the meaning of Section 368(c) of the Code.

          15.  Except for one share of KnowledgeWare Common Stock acquired by
               Sterling on November 18, 1991, Sterling does not directly own,
               nor has it directly owned  during the past five years, any shares
               of stock of KnowledgeWare.

          16.  KnowledgeWare and Sterling are not investment companies as
               defined in Section 368(a)(2)(F)(iii) and (iv) of the Code.

          17.  On the date of the Merger, the fair market value of the assets of
               KnowledgeWare will exceed the sum of its liabilities, including
               the amount of liabilities, if any, to which its assets are
               subject.
<PAGE>
 
KnowledgeWare, Inc.
October 27, 1994
Page 6

- ---------------------------------



          18.  KnowledgeWare is not under the jurisdiction of a court in a Title
               11 or similar case within the meaning of Section 368(a)(3)(A) of
               the Code.

          19.  The payment by the Exchange Agent of cash in lieu of fractional
               shares of Sterling Common Stock does not represent separately
               bargained for consideration and is being made solely for the
               purpose of saving the expense and inconvenience of issuing
               fractional shares.  The fractional share interests of each holder
               of KnowledgeWare Common Stock will be aggregated and no holder of
               KnowledgeWare Common Stock will receive cash therefor in an
               amount equal to or greater than the value of one full share of
               Sterling Common Stock.

          20.  Sterling has not paid and will not pay, directly or indirectly,
               any compensation to any shareholder-employee of KnowledgeWare
               pursuant to any employment, consulting, non-compete or similar
               arrangement that is separate consideration for, or allocable to,
               any of such shareholder's shares of KnowledgeWare Common Stock.
               None of the shares of Sterling Common Stock received by any
               shareholder of KnowledgeWare pursuant to the Merger will be
               separate consideration for, or allocable to, any such
               arrangement.  Compensation paid by Sterling, Merger Sub or
               Surviving Corporation pursuant to the Consultation Agreement will
               be for services actually rendered (or refrained from being
               rendered) and will be commensurate with amounts paid under
               similar arrangements to third parties bargaining at arm's-length.

          21.  All loans or advances by Sterling or Merger Sub to KnowledgeWare,
               including, without limitation, the acquisition by Sterling of the
               Loan Agreement and Sterling's rights and obligations under the
               Amended Loan Agreement (as hereinafter defined) and the Warrant
               Agreement, have been or will be made on an arm's length basis and
               are or will be adequately collateralized. There is no plan or
               intention that any part of any such loan will be forgiven or
               converted, directly or indirectly, into a capital contribution to
               KnowledgeWare. No liabilities of KnowledgeWare's shareholders
               will be assumed by Sterling, nor will any of the stock of
               KnowledgeWare be subject to any
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October 27, 1994
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               liabilities which may have encumbered stock of KnowledgeWare at
               the time of the Merger.  There are no arrangements in effect
               pursuant to which any shareholder of KnowledgeWare has guarantied
               or otherwise assumed liability for any liabilities or obligations
               of KnowledgeWare.  No portion of the proceeds received by
               KnowledgeWare from loans or advances made by Sterling or IBM
               Credit pursuant to the Loan Agreement or the Amended Loan
               Agreement have been or will be distributed or otherwise paid out
               to KnowledgeWare shareholders.  The maximum aggregate of the
               loans or advances which may be outstanding to KnowledgeWare at
               any time pursuant to the Amended Loan Agreement is
               $28,000,000.00.  The aggregate of the loans and advances under
               the Loan Agreement at the time Sterling acquired IBM Credit's
               interest therein was $15,133,270.00.

          22.  The outstanding KnowledgeWare Options had no readily
               ascertainable fair market value within the meaning of Treasury
               Regulations Section 1.83-7(b) when granted, and will have no
               readily ascertainable fair market value within the meaning of
               Treasury Regulations Section 1.83-7(b) when substituted as
               provided in Sections 4.1(iii) and 4.1(vi) of the Merger
               Agreement.

          23.  Sterling and KnowledgeWare have a valid business reason for
               establishing the arrangement contemplated by the Escrow Agreement
               (the "Escrow Arrangement").

          24.  As of the Effective Time, the Escrowed Shares will appear as
               issued and outstanding on Sterling's balance sheet and will be
               legally outstanding under Delaware law.

          25.  All dividends (within the meaning of Section 301(c)(1) of the
               Code) paid by Sterling on the Escrowed Shares will be distributed
               currently to the exchanging KnowledgeWare shareholders, except
               any such dividends paid in respect of Escrowed Shares as to which
               a claim exists pursuant to a Sterling Notice.

          26.  All voting rights of the Escrowed Shares will be exercisable by
               or on behalf of the exchanging
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October 27, 1994
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               KnowledgeWare shareholders or their authorized agent.

          27.  The Escrowed Shares will not be subject to restrictions requiring
               their return to Sterling upon the death, failure to continue
               employment or similar event with respect to any exchanging
               KnowledgeWare shareholder.

          28.  All Escrowed Shares will be released under the Escrow Arrangement
               within two years from the Effective Time, other than Escrowed
               Shares that are subject to a Dispute Notice or a Contingent Claim
               Notice at the expiration of such two year period.

          29.  No more than 50% of the shares of Sterling Common Stock to be
               received in the Merger by the exchanging KnowledgeWare
               shareholders are subject to the Escrow Arrangement.

          30.  The principal purpose for the Escrow Arrangement is not the
               reduction of federal income taxes.

          31.  The mechanism for the calculation of the number of Escrowed
               Shares to be returned to Sterling is objective and readily
               ascertainable.

          32.  The exchanging KnowledgeWare shareholders do not have the right
               to, and will not be permitted to, substitute other property for
               any of the Escrowed Shares.

          33.  KnowledgeWare has not within the past twelve (12) months made any
               distribution to its shareholders and has not sold or otherwise
               disposed of a substantial portion of its assets.


II.  OPINION

     In order for the Merger to qualify as a tax-free reorganization under
Section 368(a) of the Code, the historic shareholders of KnowledgeWare must
receive and retain for some period of time a significant continuing proprietary
interest in Sterling.  For advance ruling purposes, the Internal Revenue Service
(the "Service") requires that KnowledgeWare shareholders receive in the Merger
Sterling Common Stock having a value equal to
<PAGE>
 
KnowledgeWare, Inc.
October 27, 1994
Page 9

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at least fifty (50) percent of the value of all formerly outstanding shares of
KnowledgeWare Common Stock.  The requisite number of shares must generally be
retained by KnowledgeWare shareholders for some minimum period of time after
receipt thereof.  Although the Service's advance ruling requirements are not
substantive rules of law, based on the Service's advance ruling requirements,
shares of Sterling Common Stock issued to KnowledgeWare shareholders who hold
less than five percent of the outstanding KnowledgeWare Common Stock should more
likely than not be treated towards satisfaction of the continuity of interest
requirements.

     In the event KnowledgeWare shareholders receive shares of Sterling Common
Stock with a plan or intention, at the time of the Merger, to dispose of such
shares, such shares would not count toward satisfaction of the continuity of
interest requirement.  Representations have been obtained from Sterling and
KnowledgeWare, generally to the effect that to the knowledge of the Sterling
executive officers and KnowledgeWare executive officers there is no plan or
intention on the part of KnowledgeWare shareholders to sell, exchange or
otherwise dispose of a number of shares of Sterling Common Stock to be received
in the Merger that would reduce such shareholders' aggregate ownership of
Sterling Common Stock below the 50 percent continuity of interest requirement.
No such representations have been obtained from any KnowledgeWare shareholders,
and except with respect to the Escrowed Shares, neither the Merger Agreement nor
any document entered or to be entered into in connection therewith, require any
KnowledgeWare shareholder to retain the shares of Sterling Common Stock to be
received by them in the Merger for any period of time.

     To the extent a shareholder of a target corporation does not receive
unrestricted rights of ownership in the shares of stock which it receives in
connection with a Merger, such shares are not counted towards satisfaction of
the continuity of interest requirement.  There is no direct authority as to the
effect of the potential return to Sterling of the Escrowed Shares on the
continuity of interest requirement.  Consistent with authority that should allow
the KnowledgeWare shareholders to be treated as the owners of the Escrowed
Shares from the Effective Time, an argument could be made that the Escrowed
Shares should count towards satisfaction of the continuity of interest
requirement, although there is no assurance that the Service or a court would
agree.

     Effective August 31, 1994 Sterling acquired the interest of IBM Credit in
the Loan Agreement, and Sterling and KnowledgeWare entered into the Amended and
Restated Revolving Loan and Security Agreement, which has subsequently been
amended (and as so amended being referred to as the "Amended Loan Agreement").
The Amended Loan
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October 27, 1994
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Agreement provides for maximum borrowing by KnowledgeWare of $28,000,000 of
which $15,133,270 was outstanding at the time of the acquisition of the IBM
Credit position by Sterling.  As a further inducement to Sterling to enter into
the Amended Loan Agreement, KnowledgeWare and Sterling entered into the Warrant
Agreement.  Since August 31, 1994, Sterling has made additional advances to
KnowledgeWare pursuant to the Amended Loan Agreement for working capital needs.

     The impact on the Merger of the Amended Loan Agreement is not clear.
Under Revenue Ruling 72-343, 1972-2 C.B. 213, promulgated by the Service, a
target corporation receiving a loan from the acquiring corporation in connection
with a statutory merger (under Section 368(a)(1)(A) of the Code) was found to
recognize gain (under Section 361(b) of the Code) attributable to the cash
received as a loan. For the Merger to qualify as a reorganization under Section
368(a)(1)(B) of the Code, shares of KnowledgeWare Common Stock must be acquired
solely for shares of Sterling Common Stock.  For the Merger to qualify as a
reorganization under Section 368(a)(2)(E) of the Code, shareholders of
KnowledgeWare must exchange, solely for Sterling Common Stock, at least 80
percent of the shares of KnowledgeWare Common Stock.  If the loan proceeds were
considered "other property or money" received as part of the consideration for
the Merger instead of an independent loan transaction, gain may result to the
party deemed to receive such "other property or money" and the amount of such
"other property or money" received relative to the value of the Sterling Common
Stock received could adversely impact the qualification of the Merger as a tax-
free reorganization.  However, although the matter is not free from doubt, for
the reasons set forth below and based on the conditions, qualifications and
assumptions set forth herein, it is more likely than not that the Amended Loan
Agreement and advances pursuant thereto should not adversely impact the
qualification of the Merger as a tax free reorganization.

     In the facts under Revenue Ruling 72-343, the advances were non-interest
bearing, subordinated demand notes which did not have to be repaid if the merger
were not consummated through no fault of the target company or its shareholder.
To the contrary in the case of the Sterling loan to KnowledgeWare, Sterling has
a first priority lien on substantially all of the assets of KnowledgeWare, and
the loan is payable at fixed times and in all events.  Both Sterling and
KnowledgeWare have represented that the terms of the Amended Loan Agreement are
on an arm's length basis, that the loan is adequately collateralized and that
there is no plan or intent to forgive the loan or convert the loan into a
capital contribution. Although it is not free from doubt, the difference in the
characteristics of the loan may be sufficient to distinguish the facts in
<PAGE>
 
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October 27, 1994
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Revenue Ruling 72-343 from the Amended Loan Agreement.  However, it is not clear
whether Revenue Ruling 72-343 would have held differently had the advances been
arm's length financing or whether the primary determinative factor was that the
advances were made in connection with a merger.

     Some guidance on this point may be found in Revenue Ruling 72-522, 1972-2
C.B. 215.  In this ruling, the Service held that issuance of new shares by the
target company to the acquirer in exchange for cash, as part of an overall plan
for a stock for stock exchange between the acquirer and the shareholders of the
target under Section 368(a)(1)(B) of the Code, is a transaction separate and
independent from the acquirer's agreement with the shareholders of the target.
Thus, the Service recognized that a capital investment directly in the target in
a reorganization under Section 368(a)(1)(B) was distinct from the exchange of
stock engaged in by shareholders of the target, despite the fact that both the
exchange and the capital investment were part of one overall plan.  Moreover,
this Revenue Ruling and the representations by KnowledgeWare and Sterling that
no portion of the loan proceeds have been or will be distributed to
KnowledgeWare shareholders, further lend support to the position that even if
the Amended Loan Agreement were not considered as true debt that it may be
treated as an equity investment into KnowledgeWare by Sterling and not as "other
property or money" received by KnowledgeWare or KnowledgeWare shareholders.

     Revenue Ruling 72-343 may also be distinguishable on other grounds.  The
facts in that ruling involved a merger under Section 368(a)(1)(A) of the Code
where the assets of the target were transferred to the acquirer by operation of
law.  The target (the transferor) was found to have recognized gain on its
transfer to the extent of the advances received.  In the Merger, KnowledgeWare
will be the surviving entity and will not transfer its assets.  The ultimate
effect of the Merger is that KnowledgeWare shareholders become Sterling
shareholders.  Because KnowledgeWare will not make any transfers under the
structure of the Merger, there may be no issue as to whether KnowledgeWare will
recognize any gain in the transaction, and Section 361(b) of the Code, the
provision under which gain was found in Revenue Ruling 72-343, may be
inapplicable to the Merger.

     Finally as to the Amended Loan Agreement, even if proceeds were considered
to be "other property or money", the proceeds of the Amended Loan Agreement
which may be so treated may be limited to the increase in the outstanding
advances pursuant to the Amended Loan Agreement made after August 31, 1994 since
$15,133,270 had
<PAGE>
 
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October 27, 1994
Page 12

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already been advanced by IBM Credit prior to Sterling acquiring the IBM Credit's
interest in the Loan Agreement.

     Solely based on the foregoing facts, representations, assumptions and
qualifications, and subject to the following qualifications, and our
consideration of such other questions as we have deemed necessary or appropriate
for such purposes, and based on the assumption that the Merger is consummated in
accordance with the terms of the Merger Agreement, we are of the opinion that,
although the matter is not free from doubt, under current United States Federal
income tax laws and regulations, including official interpretations thereof, in
effect as of the date hereof, it is more likely than not that:

          1.   The Merger will constitute a reorganization for Federal income
               tax purposes within the meaning of Section 368(a) of the Code.

          2.   KnowledgeWare, Sterling and Merger Sub will each be "a party to a
               reorganization" within the meaning of Section 368(b) of the Code.

          3.   No gain or loss will be recognized by KnowledgeWare as a result
               of the Merger.

          4.   No gain or loss will be recognized by the KnowledgeWare
               shareholders upon the receipt of Sterling Common Stock (including
               the Escrowed Shares) in exchange for KnowledgeWare Common Stock
               in connection with the Merger; provided, however, that the
               KnowledgeWare shareholders will recognize gain or loss upon
               return of any of the Escrowed Shares to Sterling in an amount
               equal to the difference between the then value of such shares and
               the KnowledgeWare shareholders' adjusted basis in such shares.
               KnowledgeWare shareholders will not be entitled to claim a loss
               based upon the value of the shares returned to Sterling.
               Instead, their adjusted tax basis in their remaining shares of
               Sterling Common Stock will be increased by the then value of the
               returned shares.

          5.   The tax basis of the Sterling Common Stock (including the
               Escrowed Shares to be received by the KnowledgeWare shareholders
               in connection with the Merger) to be received by the
               KnowledgeWare shareholders in the Merger will be the same as the
<PAGE>
 
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October 27, 1994
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               tax basis of the KnowledgeWare Common Stock surrendered in
               exchange therefor (reduced by any amount allocable to a
               fractional share interest for which cash is received).

          6.   The holding period of the Sterling Common Stock (including the
               Escrowed Shares to be received by the KnowledgeWare shareholders
               in connection with the Merger) to be received by the
               KnowledgeWare shareholders in the Merger will include the holding
               period of the KnowledgeWare Common Stock surrendered in exchange
               therefor.

     The opinions set forth above are subject to the exception that
KnowledgeWare shareholders who receive cash in lieu of fractional share
interests of Sterling Common Stock in the Merger will generally, depending on
the each shareholder's particular circumstances, recognize a capital gain or
loss equal to the difference between the amount of cash received therefor and
the shareholder's adjusted tax basis in the fractional share interest (which
gain or loss will constitute long-term capital gain or loss if the fractional
share interest has been held for more than one year at the Effective Time).

     Except as set forth above, we express no opinion as to the tax consequences
to any party, whether federal, state, local or foreign, of the Merger or of any
transactions related to the Merger, including, without limitation, any tax
consequences to any person associated with the Warrants or Corporation Options
(as defined in the Merger Agreement).  We express no opinion as to any
transactions whatsoever if any of the transactions described in the Merger
Agreement are not consummated in accordance with the terms of the Merger
Agreement and without waiver of any material provision thereof.  If any of the
representations, warranties, statements and assumptions upon which we have
relied are not true and accurate at all relevant times, our opinion may be
adversely affected and may not be relied upon.

     This opinion only represents our best judgment as to the probable federal
income tax consequences of the Merger and is not binding on the Service or the
courts.  The conclusions stated herein are based on the Code and existing
judicial decisions, administrative regulations and published rulings.  No
assurance can be given that contrary positions will not be asserted by the
Service nor that future legislative, judicial or administrative changes will not
adversely affect the accuracy of the conclusions stated herein.  By rendering
this opinion we undertake no
<PAGE>
 
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October 27, 1994
Page 14

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responsibility to advise you of any future developments in the application or
interpretation of relevant federal tax laws.

     Without our prior written consent, this opinion may not otherwise be quoted
or referred to in whole or in part in any report or document or furnished to any
other person or entity other than your counsel or your employees, except in
response to a valid subpoena or other lawful process.

                                    Very truly yours,

                                    /s/ Hicks, Maloof & Campbell,
                                        A Professional Corporation
<PAGE>
 
                                                                     Exhibit "A"

                                October 27, 1994

Hicks, Maloof & Campbell,
  A Professional Corporation
Suite 2200, Marquis Two Tower
285 Peachtree Center Avenue, N.E.
Atlanta, Georgia 30303

     Re:  Amended and Restated Agreement and Plan of Merger among KnowledgeWare,
          Inc. ("KnowledgeWare" or, after the Merger, the "Surviving
          Corporation"), SSI Corporation ("Merger Sub"), and Sterling Software,
          Inc. ("Sterling"), entered into August 31, 1994 (as amended through
          the date hereof, the "Merger Agreement").


Gentlemen:

     In connection with (i) the proposed merger (the "Merger") of Merger Sub
with and into KnowledgeWare pursuant to the Merger Agreement, and (ii) the
registration by Sterling on Form S-4 (the "Registration Statement") under the
Securities Act of 1933, as amended (the "Act"), of the shares of Sterling Common
Stock to be issued in the Merger, you have rendered or will render certain legal
opinions pursuant to the requirements of Item 21(a) of Form S-4 under the Act,
conditioned, inter alia, on the receipt of this letter.  Capitalized terms used
             ----- ----                                                        
but not defined herein shall have the meanings assigned to them in the
Registration Statement including all attachments thereto.  When relevant to the
context, references herein to KnowledgeWare and Sterling shall include all
subsidiaries thereof.

     In connection with your opinions, and recognizing that you will rely on
this letter in rendering your opinions, the undersigned, duly authorized
officers of Sterling acting as such, hereby certify to you, that, to the best
knowledge of Sterling's executive officers ("Sterling Management"), as of the
date hereof, (i) the facts relating to the Merger as described in the prospectus
included as part of the Registration Statement ("Prospectus"), including all
attachments thereto, are true, correct and complete in all material respects,
and (ii) each of the following representations and warranties are true, correct
and complete in all material respects.  To the extent this certification
pertains to any person other than Sterling, Merger Sub or the Surviving
Corporation, such certification is only as to the actual knowledge of Sterling
Management without inquiry.  We understand that you may reaffirm your opinions
as of the effective date of the Registration Statement and any post effective
amendment thereto, and as of the Effective Time of the Merger, and that, in
connection with such reaffirmation, you will require that this certification be
confirmed as of such times.

<PAGE>
 
Hicks, Maloof & Campbell
October 27, 1994
Page 2


     1.   The Merger, if consummated, will be consummated in compliance with all
material terms and conditions of the Merger Agreement, none of which have been
waived or modified, except as disclosed in the schedule attached hereto, if any.

     2.   The ratio for the exchange of shares of KnowledgeWare Common Stock for
Sterling Common Stock (the "Exchange Ratio") in the Merger was negotiated
through arm's length bargaining.  Alex. Brown & Sons Incorporated ("Alex.
Brown") delivered to the KnowledgeWare Board of Directors its written opinion,
dated August 31, 1994, that as of that date the Exchange Ratio was fair, from a
financial point of view, to the holders of KnowledgeWare Common Stock.  Except
as disclosed in the schedule attached hereto, if any, the written opinion of
Alex. Brown has not been withdrawn or materially modified.  Based on the arm's
length negotiations and the written opinion of Alex. Brown, Sterling Management
believes the fair market value of the Sterling Common Stock to be received by
each KnowledgeWare shareholder in the Merger will be approximately equal to the
fair market value of the KnowledgeWare Common Stock surrendered in exchange
therefor.

     3.   There is no present plan or intention by the shareholders of
KnowledgeWare to sell, exchange, or otherwise dispose of a number of shares of
Sterling Common Stock to be received in the Merger that would reduce the
KnowledgeWare shareholders' aggregate ownership of Sterling Common Stock to be
received in the Merger to a number of shares having a value, as of the date of
the Merger, of less than 50 percent of the value of all of the formerly
outstanding shares of KnowledgeWare Common Stock as of the same date.  For
purposes of this representation, (i) shares of KnowledgeWare Common Stock
exchanged for cash in lieu of fractional shares of Sterling Common Stock are
treated as outstanding on the date of the Merger, and (ii) shares of
KnowledgeWare Common Stock, and shares of Sterling Common Stock received
therefor in the Merger, and otherwise sold, redeemed, or disposed of before or
after the Merger are considered in making this representation.

     4.   Following the Merger, the Surviving Corporation will hold at least 90
percent of the fair market value of KnowledgeWare's net assets and at least 70
percent of the fair market value of KnowledgeWare's gross assets held
immediately prior to the Merger, and at least 90 percent of the fair market
value of Merger Sub's net assets and at least 70 percent of the fair market
value of Merger Sub's gross assets held immediately prior to the Merger.  For
purposes of this representation, amounts used by KnowledgeWare, Surviving
Corporation or Merger Sub to pay reorganization expenses, and all redemptions
and distributions (except for regular, normal dividends) made in anticipation of
or as a part of the plan of reorganization for the Merger, will be included as
assets of KnowledgeWare or Merger Sub, respectively, immediately prior to the
Merger.  In applying the preceding sentence to Merger Sub, assets transferred by
Sterling to Merger Sub pursuant to the plan of reorganization for use in the
Merger are not taken into account.  For purposes of this representation, assets
transferred by the Surviving Corporation in the ordinary course of business or
to a corporation controlled, within the meaning of Section
<PAGE>
 
Hicks, Maloof & Campbell
October 27, 1994
Page 3


368(c) of the Internal Revenue Code of 1986, as amended (the "Code"), by the
Surviving Corporation shall be treated as assets held by the Surviving
Corporation following the Merger.

     5.   Prior to the Merger, Sterling will be in control of Merger Sub within
the meaning of Section 368(c) of the Code.

     6.   Sterling has no plan or intention to cause the Surviving Corporation
to issue additional shares of stock, and the Surviving Corporation has no plan
or intention to issue additional shares of stock, that would result in Sterling
losing control, within the meaning of Section 368(c) of the Code, of the
Surviving Corporation.

     7.   Except with respect to the Escrowed Shares, Sterling has no plan or
intention to reacquire any of the shares of Sterling Common Stock issued in the
Merger.  Any future open market purchases by Sterling of shares of Sterling
Common Stock will be motivated solely by business considerations independent of
the Merger.

     8.   Sterling has no plan or intention to liquidate the Surviving
Corporation, to merge the Surviving Corporation into another corporation, to
sell or otherwise dispose of the stock of the Surviving Corporation, or to cause
the Surviving Corporation to sell or otherwise dispose of any of its assets or
of any of the assets acquired from Merger Sub, except for dispositions of assets
made in the ordinary course of business, transfers of assets by the Surviving
Corporation to corporations controlled, within the meaning of Section 368(c) of
the Code, by the Surviving Corporation, and transfers by Sterling of shares of
the Surviving Corporation's stock to corporations controlled, within the meaning
of Section 368(c) of the Code, by Sterling.

     9.   Merger Sub is a recently formed corporation, having no assets or
liabilities other than assets transferred to it pursuant to the Merger, and
Merger Sub has been created and will be maintained through the Effective Time
solely for purposes of effecting the Merger.  Merger Sub will have no
liabilities assumed by KnowledgeWare, and will not transfer to KnowledgeWare any
assets subject to liabilities, in the Merger.  Merger Sub has not and will not
engaged in the conduct of any business unrelated to the Merger prior to the
Effective Time.

     10.  Following the Merger, the Surviving Corporation directly or through
its subsidiaries will continue KnowledgeWare's historic business or use a
significant portion of KnowledgeWare's historic business assets in a business
(within the meaning of Treasury Regulation (S) 1.368-1(d)).

     11.  Sterling, Merger Sub and KnowledgeWare, and the shareholders of
KnowledgeWare, will pay their respective expenses, if any, incurred in
connection with the Merger.
<PAGE>
 
Hicks, Maloof & Campbell
October 27, 1994
Page 4


     12.  There is no intercorporate indebtedness existing between Sterling and
KnowledgeWare or between Merger Sub and KnowledgeWare that was issued or
acquired at a discount, or that will be settled at a discount.

     13.  In the Merger, shares of KnowledgeWare Common Stock representing
control of KnowledgeWare, within the meaning of Section 368(c) of the Code, will
be exchanged solely for voting stock of Sterling.  For purposes of this
representation, any shares of KnowledgeWare Common Stock exchanged for cash or
other property originating with Sterling will be treated as outstanding
KnowledgeWare Common Stock immediately prior to the Merger.

     14.  At the time of the Merger, KnowledgeWare will not have outstanding any
warrants, options, convertible securities, or any other type of right pursuant
to which any person could acquire stock in KnowledgeWare that, if exercised or
converted, would affect Sterling's acquisition or retention of control of
KnowledgeWare, within the meaning of Section 368(c) of the Code.

     15.  Except for one share of KnowledgeWare Common Stock acquired by
Sterling on November 18, 1991, Sterling does not directly own, nor has it
directly owned during the past five years, any shares of stock of KnowledgeWare.

     16.  KnowledgeWare and Sterling are not investment companies as defined in
Section 368(a)(2)(F)(iii) and (iv) of the Code.

     17.  On the date of the Merger, the fair market value of the assets of
KnowledgeWare will exceed the sum of its liabilities, including the amount of
liabilities, if any, to which its assets are subject.

     18.  KnowledgeWare is not under the jurisdiction of a court in a Title 11
or similar case within the meaning of Section 368(a)(3)(A) of the Code.

     19.  The payment by the Exchange Agent of cash in lieu of fractional shares
of Sterling Common Stock does not represent separately bargained for
consideration and is being made solely for the purpose of saving the expense and
inconvenience of issuing fractional shares. The fractional share interests of
each holder of KnowledgeWare Common Stock will be aggregated and no holder of
KnowledgeWare Common Stock will receive cash therefor in an amount equal to or
greater than the value of one full share of Sterling Common Stock.

     20.  Sterling has not paid and will not pay, directly or indirectly, any
compensation to any shareholder-employee of KnowledgeWare pursuant to any
employment, consulting, non-compete or similar arrangement that is separate
consideration for, or allocable to, any of such shareholder's shares of
KnowledgeWare Common Stock.  None of the shares of Sterling
<PAGE>
 
Hicks, Maloof & Campbell
October 27, 1994
Page 5


Common Stock received by any shareholder of KnowledgeWare pursuant to the Merger
will be separate consideration for, or allocable to, any such arrangement.
Based on Sterling Management's consultation with an independent third party
advisor, compensation paid by Sterling, Merger Sub or the Surviving Corporation
pursuant to the Consultation Agreement will be for services actually rendered
(or refrained from being rendered) and will be commensurate with amounts paid
under similar arrangements to third parties bargaining at arm's-length.

     21.  Based on Sterling Management's (i) consultation with independent third
party advisors, and (ii) analysis of KnowledgeWare's financial condition
preceding the Merger, all loans or advances by Sterling or Merger Sub to
KnowledgeWare, including, without limitation, the acquisition by Sterling of the
Loan Agreement and Sterling's rights and obligations under the amended loan
agreement (as amended through the date of this letter, the "Amended Loan
Agreement") and the Warrant Agreement, have been or will be made on an arm's-
length basis with terms comparable to those which would have been obtained by an
unaffiliated, independent third party in the practice of making loans of
comparable risk, and were, or will be, adequately collateralized when made or
acquired. There is no plan or intention that any part of any such loan will be
forgiven or converted, directly or indirectly, into a capital contribution to
KnowledgeWare or the Surviving Corporation. No liabilities of KnowledgeWare's
shareholders will be assumed by Sterling, nor will any of the stock of the
Surviving Corporation be subject to any liabilities which may have encumbered
stock of KnowledgeWare at the time of the Merger. There are no arrangements in
effect pursuant to which any shareholder of KnowledgeWare has guarantied or
otherwise assumed liability for any indebtedness or other obligation of
KnowledgeWare. No portion of the proceeds received by KnowledgeWare from loans
or advances made by Sterling or IBM Credit pursuant to the Loan Agreement and
the Amended Loan Agreement have been or will be distributed or otherwise paid
out to KnowledgeWare shareholders. The maximum aggregate of the loans or
advances which may be outstanding to KnowledgeWare at any time pursuant to the
Amended Loan Agreement is $28,000,000.00. The aggregate of the loans and
advances under the Loan Agreement at the time Sterling acquired IBM Credit's
interest therein was $15,133,270.00.

     22.  Sterling and KnowledgeWare have a valid business reason for
establishing the arrangement contemplated by the Escrow Agreement (the "Escrow
Arrangement").

     23.  As of the Effective Time, the Escrowed Shares will appear as issued
and outstanding on Sterling's balance sheet and will be legally outstanding
under Delaware law.

     24.  All dividends (within the meaning of Section 301(c)(1) of the Code)
paid by Sterling on the Escrowed Shares will be distributed currently to the
exchanging KnowledgeWare shareholders, except any such dividends paid in respect
of Escrowed Shares as to which a claim exists pursuant to a Sterling Notice.
<PAGE>
 
Hicks, Maloof & Campbell
October 27, 1994
Page 6


     25.  All voting rights of the Escrowed Shares will be exercisable by or on
behalf of the exchanging KnowledgeWare shareholders or their authorized agent.

     26.  The Escrowed Shares will not be subject to restrictions requiring
their return to Sterling upon the death, failure to continue employment or
similar event with respect to any exchanging KnowledgeWare shareholder.

     27.  All Escrowed Shares will be released under the Escrow Arrangement
within two years from the Effective Time, other than Escrowed Shares that are
subject to a Dispute Notice or a Contingent Claim Notice at the expiration of
such two year period.

     28.  No more than 50% of the shares of Sterling Common Stock to be received
in the Merger by the exchanging KnowledgeWare shareholders are subject to the
Escrow Arrangement.

     29.  The principal purpose for the Escrow Arrangement is not the reduction
of federal income taxes.

     30.  The mechanism for the calculation of the number of Escrowed Shares to
be returned to Sterling is objective and readily ascertainable.

     31.  The exchanging KnowledgeWare shareholders do not have the right to,
and will not be permitted to, substitute other property for any of the Escrowed
Shares.

     This letter is being furnished to you solely for your benefit and for use
in rendering your opinions in connection with the Merger and the Registration
Statement and is not to be used, circulated, quoted or otherwise referred to for
any other purpose without the express written consent of Sterling.

                                    Very truly yours,


                                    /s/ Sterling L. Williams
                                    Sterling L. Williams,
                                    President and Chief Executive
                                    Officer



                                    /s/ James E. Jenkins, Jr.
                                    James E. Jenkins, Jr.,
                                    Vice President, Tax
                                    
<PAGE>
 
                                October 27, 1994


                                                                     Exhibit "B"

Hicks, Maloof & Campbell
Suite 2200, Marquis Two Tower
285 Peachtree Center Avenue, N.E.
Atlanta, Georgia  30303


     Re:  Amended and Restated Agreement and Plan of Merger among
          KnowledgeWare, Inc. ("KnowledgeWare" or, after the Merger, the
          "Surviving Corporation"), SSI Corporation ("Merger Sub"), and Sterling
          Software, Inc. ("Sterling"), entered into August 31, 1994 (as amended
          through the date hereof, the "Merger Agreement").


Gentlemen:

     In connection with (i) the proposed merger (the "Merger") of Merger Sub
with and into KnowledgeWare pursuant to the Merger Agreement, and (ii) the
registration by Sterling on Form S-4 (the "Registration Statement") under the
Securities Act of 1933, as amended (the "Act"), of the shares of Sterling Common
Stock to be issued in the Merger, you have rendered or will render certain legal
opinions pursuant to the requirements of Item 21(a) of Form S-4 under the Act,
conditioned, inter alia, on the receipt of this letter.  Capitalized terms used
             ----- ----                                                        
but not defined herein shall have the meanings assigned to them in the
Registration Statement including all attachments thereto.  When relevant to the
context, references herein to KnowledgeWare and Sterling shall include all
subsidiaries thereof.

     In connection with your opinions, and recognizing that you will rely on
this letter in rendering your opinions, the undersigned, duly authorized
officers of KnowledgeWare acting as such, hereby certify to you, that, to the
best knowledge of KnowledgeWare's executive officers actively performing service
("KnowledgeWare Management"), as of the date hereof, (i) the facts relating to
the Merger as described in the prospectus included as part of the Registration
Statement ("Prospectus"), including all attachments thereto, are true, correct
and complete in all material respects, and (ii) each of the following
representations and warranties are true, correct and complete in all material
respects.  To the extent this certification pertains to any person other than
<PAGE>
 
KnowledgeWare, such certification is only as to the actual knowledge of
KnowledgeWare Management without inquiry.  We understand that you may reaffirm
your opinions as of the effective date of the Registration Statement and any
post effective amendment thereto, and as of the Effective Time of the Merger,
and that, in connection with such reaffirmation, you will require that this
certification be confirmed as of such times.

          1.   The Merger, if consummated, will be in compliance with all
               material terms and conditions of the Merger Agreement, none of
               which have been waived or modified.

          2.   The ratio for the exchange of shares of KnowledgeWare Common
               Stock for Sterling Common Stock (the "Exchange Ratio") in the
               Merger was negotiated through arm's length bargaining.  Alex.
               Brown & Sons Incorporated ("Alex. Brown") delivered to the
               KnowledgeWare Board of Directors its written opinion, dated
               August 31, 1994, that as of that date the Exchange Ratio was
               fair, from a financial point of view, to the holders of
               KnowledgeWare Common Stock.  The written opinion of Alex. Brown
               has not been withdrawn or materially modified.  Based on the
               arm's length negotiations and the written opinion of Alex. Brown,
               KnowledgeWare Management believes the fair market value of the
               Sterling Common Stock to be received by each KnowledgeWare
               shareholder in the Merger will be approximately equal to the fair
               market value of the KnowledgeWare Common Stock surrendered in
               exchange therefor.

          3.   There is no present plan or intention by  shareholders of
               KnowledgeWare to sell, exchange or otherwise dispose of a number
               of shares of Sterling Common Stock to be received in the Merger
               that would reduce the KnowledgeWare shareholders' aggregate
               ownership of Sterling Common Stock to be received in the Merger
               to a number of shares having a value, as of the date of the
               Merger, of less than 50 percent of the value of all of the
               formerly outstanding shares of KnowledgeWare Common Stock as of
               the same date.  For purposes of this representation, (i) shares
               of KnowledgeWare Common Stock exchanged for cash in lieu of
               fractional shares of Sterling Common Stock are treated as
               outstanding on the date of the Merger, and (ii) shares of
               KnowledgeWare Common Stock, and shares of Sterling Common Stock
               received therefor in the Merger, and otherwise sold, redeemed, or
               disposed of before or after the Merger are considered in making
               this representation.
<PAGE>
 
          4.   Following the Merger, the Surviving Corporation will hold at
               least 90 percent of the fair market value of KnowledgeWare's net
               assets and at least 70 percent of the fair market value of
               KnowledgeWare's gross assets held immediately prior to the
               Merger, and at least 90 percent of the fair market value of
               Merger Sub's net assets and at least 70 percent of the fair
               market value of Merger Sub's gross assets held immediately prior
               to the Merger.  For purposes of this representation, amounts used
               by KnowledgeWare, Surviving Corporation or Merger Sub to pay
               reorganization expenses, and all redemptions and distributions
               (except for regular, normal dividends) made in anticipation of or
               as a part of the plan or reorganization for the Merger, will be
               included as assets of KnowledgeWare or Merger Sub, respectively,
               immediately prior to the Merger.  In applying the preceding
               sentence to Merger Sub, assets transferred by Sterling to Merger
               Sub pursuant to the plan of reorganization for use in the Merger
               are not taken into account.  For purposes of this representation,
               assets transferred by Surviving Corporation in the ordinary
               course of business or to a corporation controlled, within the
               meaning of Section 368(c) of the Internal Revenue Code of 1986,
               as amended (the "Code"), by KnowledgeWare shall be treated as
               assets held by Surviving Corporation following the Merger.

          5.   Prior to the Merger, Sterling will be in control of Merger Sub
               within the meaning of Section 368(c) of the Code.

          6.   Sterling has no plan or intention to cause the Surviving
               Corporation to issue additional shares of stock, and the
               Surviving Corporation has no plan or intention to issue
               additional shares of stock, that would result in Sterling losing
               control, within the meaning of Section 368(c) of the Code, of the
               Surviving Corporation.

          7.   Except with respect to the shares of Sterling Common Stock which
               are held in escrow in accordance with the Escrow Agreement (the
               "Escrowed Shares"), Sterling has no plan or intention to
               reacquire any of the shares of Sterling Common Stock issued in
               the Merger.  Any future open market purchases by Sterling of
               shares of Sterling Common Stock will be motivated solely by
               business considerations independent of the Merger.

          8.   Sterling has no plan or intention to liquidate Surviving
               Corporation into another corporation, to merge Surviving
               Corporation into another
<PAGE>
 
               corporation, to sell or otherwise dispose of the stock of
               Surviving Corporation, or to cause Surviving Corporation to sell
               or otherwise dispose of any of its assets or of any of the assets
               acquired from Merger Sub, except for dispositions of assets made
               in the ordinary course of business, transfers of assets by
               Surviving Corporation to corporations controlled, within the
               meaning of Section 368(c) of the Code, by Surviving Corporation
               and transfers by Sterling of shares of Surviving Corporation's
               stock to corporations controlled, within the meaning of Section
               368(c) of the Code, by Sterling.

          9.   Merger Sub is a recently formed corporation, having no assets or
               liabilities other than assets transferred to it pursuant to the
               Merger, and Merger Sub has been created and will be maintained
               through the Effective Time solely for purposes of effecting the
               Merger.  Merger Sub will have no liabilities assumed by
               KnowledgeWare, and will not transfer to KnowledgeWare any assets
               subject to liabilities, in the Merger.  Merger Sub has not and
               will not engage in the conduct of any business unrelated to the
               Merger prior to the Effective Time.

          10.  Following the Merger, Surviving Corporation directly or through
               its subsidiaries will continue KnowledgeWare's historic business
               or use a significant portion of KnowledgeWare's historic business
               assets in a business within the meaning of Treasury Regulation
               (S)1.368-1(d).

          11.  Sterling, Merger Sub, KnowledgeWare and the shareholders of
               KnowledgeWare, will pay their respective expenses, if any,
               incurred in connection with the Merger.

          12.  There is no intercorporate indebtedness existing between Sterling
               and KnowledgeWare or between Merger Sub and KnowledgeWare that
               was issued, acquired, or will be settled at a discount.
 
          13.  In the Merger, shares of KnowledgeWare Common Stock representing
               control of KnowledgeWare, within the meaning of Section 368(c) of
               the Code, will be exchanged solely for voting stock of Sterling.
               For purposes of this representation, any shares of KnowledgeWare
               Common Stock exchanged for cash or other property originating
               with Sterling will be treated as outstanding KnowledgeWare Common
               Stock immediately prior to Merger.
<PAGE>
 
          14.  At the time of the Merger, KnowledgeWare will not have
               outstanding any warrants, options, convertible securities, or any
               other type of right pursuant to which any person could acquire
               stock in KnowledgeWare that, if exercised or converted, would
               affect Sterling's acquisition or retention of control of
               KnowledgeWare, within the meaning of Section 368(c) of the Code.

          15.  Except for one share of KnowledgeWare Common Stock acquired by
               Sterling on November 18, 1991, Sterling does not directly own,
               nor has it directly owned  during the past five years, any shares
               of stock of KnowledgeWare.

          16.  KnowledgeWare and Sterling are not investment companies as
               defined in Section 368(a)(2)(F)(iii) and (iv) of the Code.

          17.  On the date of the Merger, the fair market value of the assets of
               KnowledgeWare will exceed the sum of its liabilities, including
               the amount of liabilities, if any, to which its assets are
               subject.

          18.  KnowledgeWare is not under the jurisdiction of a court in a Title
               11 or similar case within the meaning of Section 368(a)(3)(A) of
               the Code.

          19.  The payment by the Exchange Agent of cash in lieu of fractional
               shares of Sterling Common Stock does not represent separately
               bargained for consideration and is being made solely for the
               purpose of saving the expense and inconvenience of issuing
               fractional shares.  The fractional share interests of each holder
               of KnowledgeWare Common Stock will be aggregated and no holder of
               KnowledgeWare Common Stock will receive cash therefor in an
               amount equal to or greater than the value of one full share of
               Sterling Common Stock.

          20.  Sterling has not paid and will not pay, directly or indirectly,
               any compensation to any shareholder-employee of KnowledgeWare
               pursuant to any employment, consulting, non-compete or similar
               arrangement that is separate consideration for, or allocable to,
               any of such shareholder's shares of KnowledgeWare Common Stock.
               None of the shares of Sterling Common Stock received by any
               shareholder of KnowledgeWare pursuant to the Merger will be
               separate consideration for, or allocable to, any such
               arrangement.  Compensation paid by Sterling, Merger Sub or
               Surviving Corporation pursuant to the Consultation Agreement will
               be for services
<PAGE>
 
               actually rendered (or refrained from being rendered) and will be
               commensurate with amounts paid under similar arrangements to
               third parties bargaining at arm's-length.

          21.  All loans or advances by Sterling or Merger Sub to KnowledgeWare,
               including, without limitation, the acquisition by Sterling of the
               Loan Agreement and Sterling's rights and obligations under that
               certain Amended and Restated Revolving Loan and Security
               Agreement dated as of August 31, 1994, by and between Sterling
               and KnowledgeWare as amended through the date hereof (the
               "Amended Loan Agreement") and the Warrant Agreement, have been or
               will be made on an arm's length basis and are or will be
               adequately collateralized.  There is no plan or intention that
               any part of any such loan will be forgiven or converted, directly
               or indirectly, into a capital contribution to KnowledgeWare.  No
               liabilities of KnowledgeWare's shareholders will be assumed by
               Sterling, nor will any of the stock of KnowledgeWare be subject
               to any liabilities which may have encumbered stock of
               KnowledgeWare at the time of the Merger.  There are no
               arrangements in effect pursuant to which any shareholder of
               KnowledgeWare has guarantied or otherwise assumed liability for
               any liabilities or obligations of KnowledgeWare.  No portion of
               the proceeds received by KnowledgeWare from loans or advances
               made by Sterling or IBM Credit pursuant to the Loan Agreement or
               the Amended Loan Agreement have been or will be distributed or
               otherwise paid out to KnowledgeWare shareholders.  The maximum
               aggregate of the loans or advances which may be outstanding to
               KnowledgeWare at any time pursuant to the Amended Loan Agreement
               is $28,000,000.00.  The aggregate of the loans and advances under
               the Loan Agreement at the time Sterling acquired IBM Credit's
               interest therein was $15,133,270.00.

          22.  The outstanding KnowledgeWare Options had no readily
               ascertainable fair market value within the meaning of Treasury
               Regulations Section 1.83-7(b) when granted, and will have no
               readily ascertainable fair market value within the meaning of
               Treasury Regulations Section 1.83-7(b) when substituted as
               provided in Sections 4.1(iii) and 4.1(vi) of the Merger
               Agreement.

          23.  Sterling and KnowledgeWare have a valid business reason for
               establishing the arrangement contemplated by the Escrow Agreement
               (the "Escrow Arrangement").
<PAGE>
 
          24.  As of the Effective Time, the Escrowed Shares will appear as
               issued and outstanding on Sterling's balance sheet and will be
               legally outstanding under Delaware law.

          25.  All dividends (within the meaning of Section 301(c)(1) of the
               Code) paid by Sterling on the Escrowed Shares will be distributed
               currently to the exchanging KnowledgeWare shareholders, except
               any such dividends paid in respect of Escrowed Shares as to which
               a claim exists pursuant to a Sterling Notice.

          26.  All voting rights of the Escrowed Shares will be exercisable by
               or on behalf of the exchanging KnowledgeWare shareholders or
               their authorized agent.

          27.  The Escrowed Shares will not be subject to restrictions requiring
               their return to Sterling upon the death, failure to continue
               employment or similar event with respect to any exchanging
               KnowledgeWare shareholder.

          28.  All Escrowed Shares will be released under the Escrow Arrangement
               within two years from the Effective Time, other than Escrowed
               Shares that are subject to a Dispute Notice or a Contingent Claim
               Notice at the expiration of such two year period.

          29.  No more than 50% of the shares of Sterling Common Stock to be
               received in the Merger by the exchanging KnowledgeWare
               shareholders are subject to the Escrow Arrangement.

          30.  The principal purpose for the Escrow Arrangement is not the
               reduction of federal income taxes.

          31.  The mechanism for the calculation of the number of Escrowed
               Shares to be returned to Sterling is objective and readily
               ascertainable.

          32.  The exchanging KnowledgeWare shareholders do not have the right
               to, and will not be permitted to, substitute other property for
               any of the Escrowed Shares.

          33.  KnowledgeWare has not within the past twelve (12) months made any
               distribution to its shareholders and has not sold or otherwise
               disposed of a substantial portion of its assets.
<PAGE>
 
     This letter is being furnished to you solely for your benefit and for use
in rendering your opinions in connection with the Merger and the Registration
Statement and is not to be used, circulated, quoted or otherwise referred to for
any other purpose without the express written consent of KnowledgeWare.

                                    Very Truly Yours,


                                    /s/ Francis A. Tarkenton
                                    --------------------------
                                    Francis A. Tarkenton,
                                    Chairman of the Board and
                                    Chief Executive Officer


                                    /s/ Richard M. Haddrill
                                    --------------------------
                                    Richard M. Haddrill,
                                    Executive Vice President
                                    and Secretary


                                    /s/ Rick W. Gossett
                                    --------------------------
                                    Rick W. Gossett,
                                    Chief Financial Officer,
                                    Treasurer and Assistant
                                    Vice President

<PAGE>
 
                                                                   EXHIBIT 10.67


              ASSIGNMENT OF LOAN DOCUMENTS AND SECURITY INTERESTS
              ---------------------------------------------------


     The undersigned, IBM CREDIT CORPORATION, a Delaware corporation
("Assignor"), the sole owner and holder of the rights and indebtedness evidenced
  --------                                                                      
by (i) that certain Revolving Loan and Security Agreement (the "Revolving Loan
                                                                --------------
Agreement") dated June 23, 1994, executed by and between KnowledgeWare, Inc., a
- ---------                                                                      
Georgia corporation ("Borrower"), and Assignor, and (ii) that certain Term Note
                      --------                                                 
(the "Note"), dated June 23, 1994, in the original principal amount of
      ----                                                            
$2,766,800, executed by Borrower and payable to the order of Assignor (the
Revolving Loan Agreement and the Note are hereinafter referred to collectively
as the "Debt Instruments"), for and in consideration of receipt of the Purchase
        ----------------                                                       
Price, as set forth in Section 2 below, and other good and valuable
                       ---------                                   
consideration paid to Assignor, the receipt and sufficiency of which are hereby
acknowledged, hereby agrees in favor of STERLING SOFTWARE, INC., a Delaware
corporation ("Assignee"), as follows:
              --------               

     1.  Assignment.   Assignor has TRANSFERRED, SOLD, BARGAINED, ASSIGNED,
         ----------                                                        
GRANTED AND CONVEYED, and by these presents does  TRANSFER, SELL, BARGAIN,
ASSIGN, GRANT AND CONVEY unto Assignee, for the Purchase Price (as hereinafter
defined), the following:  (i) the Debt Instruments, together with all documents
evidencing, guaranteeing, securing, pertaining to or executed in connection with
the Debt Instruments, including, without limitation, those documents listed in
Exhibit A attached hereto and made a part hereof for all purposes (including all
- ---------                                                                       
extensions, renewals, modifications, substitutions and replacements of any of
same, if any) (the Debt Instruments and all of such other documents, all
extensions, renewals, modifications, substitutions and replacements collectively
referred to as the "Loan Documents"), (ii) all of the rights, benefits,
                    --------------                                     
privileges, liens, security interests and assignments owned, held, accruing and
to accrue to, or for the benefit of Assignor in respect of the Debt Instruments
and the Loan Documents (all of such liens, security interests and rights
collectively referred to as the "Liens"), TO HAVE AND TO HOLD unto Assignee, its
                                 -----                                          
successors and assigns, all right, title and interest of Assignor in, to and
under the Debt Instruments, the other Loan Documents and the Liens.  Assignee
hereby accepts such assignment from Assignor, and Assignee hereby agrees that,
from and after the date hereof, it shall assume, and does hereby assume, the
performance of all obligations of Assignor under the Loan Documents, to the
extent the same arise from and after the date hereof.

     2.  Purchase Price.  Assignee shall pay to Assignor in cash or other
         --------------                                                  
immediately available funds, by wire transfer to Assignor pursuant to the
instructions set forth in Exhibit B attached hereto and made a part hereof for
                          ---------                                           
all purposes, the sum of (a) (i) $12,226,808.81, constituting the outstanding
principal balance of the Line of Credit indebtedness due under the Revolving
Loan
<PAGE>
 
Agreement on August 31, 1994, plus (ii) $118,559.92, constituting accrued and
unpaid interest on the Line of Credit principal indebtedness through August 31,
1994, and (b) (i) $2,766,426, constituting the outstanding principal balance of
the Term Note on August 31, 1994, plus (ii) $21,440.08, constituting unpaid
interest on the principal balance of the Term Note, and (c) $-0-, constituting
the total amount of all other sums due to Assignor under the Loan Documents
(collectively, the "Purchase Price").
                    --------------   

     3.  Assignment and Termination of Financing Statements.  Contemporaneously
         --------------------------------------------------                    
with the execution and delivery of this Assignment, Assignor shall execute and
deliver (a) UCC-3 Total Assignments of the Financing Statements more
particularly described in Exhibit C attached hereto and made a part hereof for
                          ---------                                           
all purposes, and (b) an assignment of all filings made by Assignor on the
patents, trademarks and copyrights of Borrower and its subsidiaries.

     4.  Endorsement and Delivery of Debt Instruments; Delivery of Loan
         --------------------------------------------------------------
Documents.  Contemporaneously with the execution and delivery of this
- ----------                                                           
Assignment, Assignor shall deliver to Assignee the original of each of the Debt
Instruments to Assignee, endorsed "PAY TO THE ORDER OF STERLING SOFTWARE, INC."
and all originals of the other Loan Documents in its possession, other than the
original Copyright Security Agreement, Trademark Security Agreement and Patent
Security Agreement listed as items 7 through 11 on Exhibit A.
                                                   --------- 

     5.  Representations and Warranties.  Assignor hereby represents and
         ------------------------------                                 
warrants to Assignee that:

          (a) Assignor is the present legal and equitable owner and holder of
     the Debt Instruments, and Assignor has not assigned, transferred or
     otherwise conveyed its interest in the Debt Instruments, or any of the
     other Loan Documents;

          (b) other than the agreements and documents referenced above in
     Section 1 of this Assignment, no amendments, modifications or agreements
     ---------                                                               
     exist which affect the Debt Instruments or any of the other Loan Documents;
     and

          (c) the Purchase Price represents all amounts due to Assignor by
     Borrower under the Loan Documents.

     6.   No Right to Payment.  Assignor acknowledges and agrees that, as of the
          -------------------                                                   
date hereof, Assignor has no further rights to any payments on the Debt
Instruments or any income from any collateral therefor, and that to the extent
that Assignor receives any payments on the Debt Instruments or the collateral
therefor following the date hereof, Assignor will promptly remit the same to
Assignee.  In the event that Assignor shall ever receive any remittances from
any account debtors pursuant to Section 3.5 of the Revolving Loan Agreement,
Assignor shall properly endorse and
<PAGE>
 
deliver such remittances to Assignee, whether in the form of money, checks,
notes, drafts, or other things of value or items of payment, and that such shall
be received by Assignor solely as agent and in trust for Assignee.  Assignor
shall properly endorse and deliver to Assignee, on the day of receipt thereof or
within a reasonable time thereafter, all such original checks, drafts,
acceptances, notes and other evidences of, or properties constituting payment of
such accounts, including all cash.

     7.   Further Assurances.  Assignor agrees that from and after the date
          ------------------                                               
hereof, Assignor will, within a reasonable period of time after request
therefor, execute and/or deliver to Assignee such additional documents as
Assignee may reasonably request in order to more fully evidence the transfer to
and vesting in Assignee of Assignor's rights with respect to the Debt
Instruments, the other Loan Documents and the Liens.

     8.   Non-Reliance on Assignor.  The Assignor makes no representation or
          ------------------------                                          
warranty in connection with, and shall have no responsibility with respect to,
the solvency, financial condition, or statements of the Borrower, or the
validity and enforceability of the obligations of the Borrower in respect of the
Debt Instruments.  The Assignee acknowledges that it has, independently and
without reliance on the Assignor, and based on such documents and information as
it has deemed appropriate, made its own credit analysis and decision to enter
into this Assignment and will continue to be responsible for making its own
independent appraisal of the business, affairs and financial condition of the
Borrower.

     9.   Acknowledgment and Consent by Borrower.  By executing this Assignment,
          --------------------------------------                                
Borrower hereby consents to the terms and provisions hereof, and acknowledges
that from and after the date hereof, Assignee shall succeed to all of the rights
and obligations of Assignor under the Loan Documents.  Borrower agrees to treat
Assignee for all purposes as Payee in place of Assignor under the Loan Documents
and to make no further payments on the Debt Instruments to Assignor.

     10.  Acknowledgement and Consent by Borrower.  By executing the Consent
          ---------------------------------------                           
which follows this Assignment, each of the undersigned guarantors under the Loan
Documents hereby acknowledges and consents to this Assignment.

     11.  Successors and Assigns.  This Assignment shall be binding on and shall
          ----------------------                                                
inure to the benefit of Assignor and Assignee and each of their respective
successors, assigns, receivers and trustees.

     12.  Governing Law.  This Agreement shall be governed by and construed in
          -------------                                                       
accordance with the Laws of the State of New York.
<PAGE>
 
     13.  Counterparts.  This Assignment may be executed in any number of
          ------------                                                   
original counterparts, each of which when so executed and delivered shall be
deemed an original, and all of which, collectively, shall constitute one
agreement, it being understood and agreed that the signature pages may be
detached from one or more of such counterparts and combined with the signature
pages from any other counterpart in order that one or more fully executed
originals may be assembled.

     EXECUTED and agreed to as of the 31st day of August, 1994.

                              ASSIGNOR:
                              -------- 

                              IBM CREDIT CORPORATION, a Delaware corporation


                              By:  /s/ Brad Thomas
                                 -------------------------------------------
                                   Brad Thomas
                                   RFCM


                              ASSIGNEE:
                              -------- 

                              STERLING SOFTWARE, INC., a Delaware corporation


                              By:  /s/ Vicki L. Hill
                                 -------------------------------------------
                                   Vicki L. Hill
                                   Vice President, Treasurer


                              BORROWER:
                              -------- 

                              KNOWLEDGEWARE, INC., a Georgia corporation


                              By:  /s/ Rick W. Gossett
                                 -------------------------------------------
                                   Rick W. Gossett
                                   Vice President, Treasurer
<PAGE>
 
                             CONSENT OF GUARANTORS
                             ---------------------

     The undersigned Guarantors hereby agree to, ratify and confirm the terms of
the above Assignment of Loan Documents and Security Interests.


                              GUARANTORS:
                              ---------- 

                              KNOWLEDGEWARE WORLDWIDE, INC., a Georgia
                              corporation


                              By:  /s/ Rick W. Gossett
                                 -------------------------------------------
                                   Rick W. Gossett
                                   Secretary and Treasurer


                              IWK CORPORATION, a Delaware corporation


                              By: /s/ Rick W. Gossett
                                 -------------------------------------------
                                  Rick W. Gossett
                                  Secretary and Treasurer


                              MATESYS CORP., a California corporation


                              By: /s/ Rick W. Gossett
                                 -------------------------------------------
                                  Rick W. Gossett
                                  Chief Financial Officer, Treasurer and
                                    Assistant Secretary


                              KNOWLEDGEWARE INTERNATIONAL, INC., a Georgia
                              corporation


                              By:  /s/ Rick W. Gossett
                                 -------------------------------------------
                                   Rick W. Gossett
                                   Chief Financial Officer, Treasurer and
                                     Assistant Secretary
<PAGE>
 
STATE OF GEORGIA         (S)
                         (S)
COUNTY OF FULTON         (S)

     On the 31st day of August, 1994, before me personally came Brad Thomas,
to me personally known and known to me to be the person described in and who
executed the Assignment of Loan Documents and Security Interests dated August
31, 1994, as RFCM of IBM Credit Corporation, who being by me duly sworn, did
depose and say that he is RFCM of IBM Credit Corporation, described in and which
executed the foregoing instrument; that he signed his name thereto by like
order; and that he acknowledged said instrument to be the free act and deed of
IBM Credit Corporation.

                                    /s/ Jackie Pollack
                                    -------------------------------
                                    Notary Public

Notary Public, State of Georgia

          (SEAL)
My commission expires:

Notary Public, Dekalb Co., Georgia
My commission expires April 26, 1997
- ------------------------------------


STATE OF GEORGIA         (S)
                         (S)
COUNTY OF FULTON         (S)

     On the 31st day of August, 1994, before me personally came Vicki L. Hill,
to me personally known and known to me to be the person described in and who
executed the Assignment of Loan Documents and Security Interests dated August
31, 1994, as Vice President, Treasurer of Sterling Software, Inc., who being by
me duly sworn, did depose and say that she is Vice President, Treasurer of
Sterling Software, Inc., described in and which executed the foregoing
instrument; that she signed her name thereto by like order; and that she
acknowledged said instrument to be the free act and deed of Sterling Software,
Inc.

                                    /s/ Jackie Pollack
                                    -------------------------------
                                    Notary Public

Notary Public, State of Georgia

          (SEAL)

My commission expires:

Notary Public, Dekalb Co., Georgia
My commission expires April 26, 1997
- ------------------------------------
<PAGE>
 
STATE OF GEORGIA         (S)
                         (S)
COUNTY OF FULTON         (S)

     On the 31st day of August, 1994, before me personally came Rick W.
Gossett, to me personally known and known to me to be the person described in
and who executed the Assignment of Loan Documents and Security Interests dated
August 31, 1994, as Treasurer, Chief Financial Officer and Assistant Secretary
of KnowledgeWare, Inc., who being by me duly sworn, did depose and say that he
is Treasurer, Chief Financial Officer and Assistant Secretary of KnowledgeWare,
Inc., described in and which executed the foregoing instrument; that he signed
his name thereto by like order; and that he acknowledged said instrument to be
the free act and deed of KnowledgeWare, Inc.

                                    /s/ Jackie Pollack
                                    -------------------------------
                                    Notary Public

Notary Public, State of Georgia

          (SEAL)
My commission expires:

Notary Public, Dekalb Co., Georgia
My commission expires April 26, 1997
- ------------------------------------

STATE OF GEORGIA         (S)
                         (S)
COUNTY OF FULTON         (S)

     On the 31st day of August, 1994, before me personally came Rick W.
Gossett, to me personally known and known to me to be the person described in
and who executed the Assignment of Loan Documents and Security Interests dated
August 31, 1994, as Secretary and Treasurer of KnowledgeWare Worldwide, Inc.,
who being by me duly sworn, did depose and say that he is Secretary and
Treasurer of KnowledgeWare Worldwide, Inc., described in and which executed the
foregoing instrument; that he signed his name thereto by like order; and that he
acknowledged said instrument to be the free act and deed of KnowledgeWare
Worldwide, Inc.

                                    /s/ Jackie Pollack
                                    -------------------------------
                                    Notary Public

Notary Public, State of Georgia

          (SEAL)

My commission expires:

Notary Public, Dekalb Co., Georgia
My commission expires April 26, 1997
- ------------------------------------
<PAGE>
 
STATE OF GEORGIA         (S)
                         (S)
COUNTY OF FULTON         (S)

     On the 31st day of August, 1994, before me personally came Rick W.
Gossett, to me personally known and known to me to be the person described in
and who executed the Assignment of Loan Documents and Security Interests dated
August 31, 1994, as Treasurer and Secretary of IWK Corporation, who being by me
duly sworn, did depose and say that he is Treasurer and Secretary of IWK
Corporation, described in and which executed the foregoing instrument; that he
signed his name thereto by like order; and that he acknowledged said instrument
to be the free act and deed of IWK Corporation.

                                    /s/ Jackie Pollack
                                    -------------------------------
                                    Notary Public

Notary Public, State of Georgia

          (SEAL)

My commission expires:

Notary Public, Dekalb Co., Georgia
My commission expires April 26, 1997
- ------------------------------------


STATE OF GEORGIA         (S)
                         (S)
COUNTY OF FULTON         (S)

     On the 31st day of August, 1994, before me personally came Rick W.
Gossett, to me personally known and known to me to be the person described in
and who executed the Assignment of Loan Documents and Security Interests dated
August 31, 1994, as CFO, Treasurer and Assistant Secretary of Matesys Corp., who
being by me duly sworn, did depose and say that he is CFO, Treasurer and
Assistant Secretary of Matesys Corp., described in and which executed the
foregoing instrument; that he signed his name thereto by like order; and that he
acknowledged said instrument to be the free act and deed of Matesys Corp.

                                    /s/ Jackie Pollack
                                    -------------------------------
                                    Notary Public

Notary Public, State of Georgia

          (SEAL)

My commission expires:

Notary Public, Dekalb Co., Georgia
My commission expires April 26, 1997
- ------------------------------------
<PAGE>
 
STATE OF GEORGIA    (S)
                    (S)
COUNTY OF FULTON    (S)

     On the 31st day of August, 1994, before me personally came Rick W.
Gossett, to me personally known and known to me to be the person described in
and who executed the Assignment of Loan Documents and Security Interests dated
August 31, 1994, as CFO, Treasurer and Assistant Secretary of KnowledgeWare
International, Inc., who being by me duly sworn, did depose and say that he is
CFO, Treasurer and Assistant Secretary of KnowledgeWare International, Inc.,
described in and which executed the foregoing instrument; that he signed his
name thereto by like order; and that he acknowledged said instrument to be the
free act and deed of KnowledgeWare International, Inc.

                                    /s/ Jackie Pollack
                                    -------------------------------
                                    Notary Public

Notary Public, State of Georgia

          (SEAL)

My commission expires:

Notary Public, Dekalb Co., Georgia
My commission expires April 26, 1997
- ------------------------------------
<PAGE>
 
                                   EXHIBIT A
                                   ---------


                                 Loan Documents
                                 --------------


1.   Revolving Loan and Security Agreement, dated June 23, 1994, by and between
     KnowledgeWare, Inc. and IBM Credit Corporation.

2.   Term Note, dated June 23, 1994, in the stated principal amount of
     $2,766,800, executed by KnowledgeWare, Inc. and made payable to the order
     of IBM Credit Corporation.

3.   Collateralized Guaranty, dated June 23, 1994, executed by KnowledgeWare
     Worldwide, Inc. in favor of IBM Credit Corporation.

4.   Collateralized Guaranty, dated June 23, 1994, executed by IWK Corporation
     in favor of IBM Credit Corporation.

5.   Collateralized Guaranty, dated June 23, 1994, executed by Matesys Corp. in
     favor of IBM Credit Corporation.

6.   Collateralized Guaranty, dated June 23, 1994, executed by KnowledgeWare
     International, Inc. in favor of IBM Credit Corporation.

7.   Copyright Security Agreement (Copyrights, Copyright Applications and
     Copyright Licenses), dated June 23, 1994 executed by and between Matesys
     Corp. and IBM Credit Corporation.

8.   Copyright Security Agreement (Copyrights, Copyright Applications and
     Copyright Licenses) dated June 23, 1994, executed by and between
     KnowledgeWare, Inc. and IBM Credit Corporation.

9.   Trademark Security Agreement (Trademarks, Trademark Registrations,
     Trademark Applications and Trademark Licenses), dated June 23, 1994,
     executed by and between Matesys Corp. and IBM Credit Corporation.

10.  Trademark Security Agreement (Trademarks, Trademark Registrations,
     Trademark Applications and Trademark Licenses), dated June 23, 1994,
     executed by and between KnowledgeWare, Inc. and IBM Credit Corporation.

11.  Patent Security Agreement (Patents, Patent Applications and Patent
     Licenses), dated June 23, 1994, executed by and between KnowledgeWare, Inc.
     and IBM Credit Corporation.

12.  Blocked Account Amendment to a Lockbox Agreement, dated June 23, 1994, by
     and among KnowledgeWare, Inc., IBM Credit Corporation and Bank South, N.A.
<PAGE>
 
                                   EXHIBIT B
                                   ---------

                             (Wiring Instructions)



IBM Credit Corporation
P.O. Box 905320
Charlotte, NC 28290-5320
c/o First National Bank of Chicago
Chicago, Illinois
Account #:  5934-796
ABA#:  071000013
<PAGE>
 
                                   EXHIBIT C
                                   ---------

                           (UCC-3 Total Assignments)

          (a) UCC-3 Total Assignment in favor of Assignee, assigning Assignor's
     rights under original Financing Statement No. 761865 filed on July 22,
     1991, in Fulton County, Georgia;

          (b) UCC-3 Total Assignment in favor of Assignee, assigning Assignor's
     rights under original Financing Statement No. 766157 filed on October 21,
     1991, in Fulton County, Georgia;

          (c) UCC-3 Total Assignment in favor of Assignee, assigning Assignor's
     rights under original Financing Statement No. 812543 filed on June 15,
     1994, in Fulton County, Georgia;

          (d) UCC-3 Total Assignment in favor of Assignee, assigning Assignor's
     rights under original Financing Statement No. 812544 filed on June 15,
     1994, in Fulton County, Georgia;

          (e) UCC-3 Total Assignment in favor of Assignee, assigning Assignor's
     rights under original Financing Statement No. 812545 filed on June 15,
     1994, in Fulton County, Georgia;

          (f) UCC-3 Total Assignment in favor of Assignee, assigning Assignor's
     rights under original Financing Statement No. 812546 filed on July 15,
     1994, in Fulton County, Georgia;

          (g) UCC-3 Total Assignment in favor of Assignee, assigning Assignor's
     rights under original Financing Statement No. 812542 filed on July 15,
     1994, in Fulton County, Georgia;

          (h) UCC-3 Total Assignment in favor of Assignee, assigning Assignor's
     rights under original Financing Statement No. 94 4720 filed on June 17,
     1994, in Gwinnett County, Georgia;

          (i) UCC-3 Total Assignment in favor of Assignee, assigning Assignor's
     rights under original Financing Statement No. 94122986 filed on June 17,
     1994, with the Secretary of State of the State of California;

          (j) UCC-3 Total Assignment in favor of Assignee, assigning Assignor's
     rights under original Financing Statement No. 942047353 filed on June 23,
     1994, with the Secretary of State of the State of Colorado;

          (k) UCC-3 Total Assignment in favor of Assignee, assigning Assignor's
     rights under original Financing Statement No. 9408857 filed on July 1,
     1994, with the Secretary of State of the State of Delaware;

          (l) UCC-3 Total Assignment in favor of Assignee, assigning Assignor's
     rights under original Financing Statement No. 3272527 filed on June 17,
     1994, with the Secretary of State of the State of Illinois;

          (m) UCC-3 Total Assignment in favor of Assignee, assigning Assignor's
     rights under original Financing Statement No. K558617 filed on June 20,
     1994, with the Secretary of State of the State of Iowa;

          (n) UCC-3 Total Assignment in favor of Assignee, assigning Assignor's
     rights under original Financing Statement No. 243068 filed on June 20,
     1994, with the Secretary of State of the State of Massachusetts;

          (o) UCC-3 Total Assignment in favor of Assignee, assigning Assignor's
     rights under original Financing Statement No. 375369 filed on June 29,
     1994, with the City of Boston of the State of Massachusetts;
<PAGE>
 
          (p) UCC-3 Total Assignment in favor of Assignee, assigning Assignor's
     rights under original Financing Statement No. 44197B filed on June 23,
     1994, with the Secretary of State of the State of Michigan;

          (q) UCC-3 Total Assignment in favor of Assignee, assigning Assignor's
     rights under original Financing Statement No. 1683682 filed on June 23,
     1994, with the Secretary of State of the State of Minnesota;

          (r) UCC-3 Total Assignment in favor of Assignee, assigning Assignor's
     rights under original Financing Statement No. 2420357 filed on June 17,
     1994, with the Secretary of State of the State of Missouri;

          (s) UCC-3 Total Assignment in favor of Assignee, assigning Assignor's
     rights under original Financing Statement No. 1578036 filed on June 27,
     1994, with the Secretary of State of the State of New Jersey;

          (t) UCC-3 Total Assignment in favor of Assignee, assigning Assignor's
     rights under original Financing Statement No. 126954 filed on June 20,
     1994, with the Secretary of State of the State of New York;

          (u) UCC-3 Total Assignment in favor of Assignee, assigning Assignor's
     rights under original Financing Statement No. 94PN30379 filed on June 28,
     1994, with New York County of the State of New York;

          (v) UCC-3 Total Assignment in favor of Assignee, assigning Assignor's
     rights under original Financing Statement No. AL08258 filed on June 17,
     1994, with the Secretary of State of the State of Ohio;

          (w) UCC-3 Total Assignment in favor of Assignee, assigning Assignor's
     rights under original Financing Statement No. 4148B06 filed on July 1,
     1994, with Franklin County of the State of Ohio;

          (x) UCC-3 Total Assignment in favor of Assignee, assigning Assignor's
     rights under original Financing Statement No. S09266 filed on June 17,
     1994, with the Secretary of State of Oregon;

          (y) UCC-3 Total Assignment in favor of Assignee, assigning Assignor's
     rights under original Financing Statement No. 23240167 filed on June 17,
     1994, with the Secretary of State of the Commonwealth of the Commonwealth
     of Pennsylvania;

          (z) UCC-3 Total Assignment in favor of Assignee, assigning Assignor's
     rights under original Financing Statement No. 942743 filed on June 17,
     1994, with the Prothonotary of Philadelphia County of the Commonwealth of
     Pennsylvania;

          (aa) UCC-3 Total Assignment in favor of Assignee, assigning Assignor's
     rights under original Financing Statement No. 94-120581 filed on June 17,
     1994, with the Secretary of State of the State of Texas;

          (bb) UCC-3 Total Assignment in favor of Assignee, assigning Assignor's
     rights under original Financing Statement No. 9406177045 filed on June 17,
     1994, with the Secretary of State of the State of Virginia;

          (cc) UCC-3 Total Assignment in favor of Assignee, assigning Assignor's
     rights under original Financing Statement No. 94-006145 filed on June 17,
     1994, with Fairfax County of the State of Virginia;

          (dd) UCC-3 Total Assignment in favor of Assignee, assigning Assignor's
     rights under original Financing Statement No. 94-168-0139 filed on June 17,
     1994, with the Secretary of State of the State of Washington; and

          (ee) UCC-3 Total Assignment in favor of Assignee, assigning Assignor's
     rights under original Financing Statement No. 9400011826 filed on June 23,
     1994, with the District Clerk, District of Columbia.

<PAGE>
 
                                                                   EXHIBIT 10.68


                              AMENDED AND RESTATED
                     REVOLVING LOAN AND SECURITY AGREEMENT
                     -------------------------------------


AMENDED AND RESTATED REVOLVING LOAN AND SECURITY AGREEMENT ("Agreement") by and
                                                             ---------         
between STERLING SOFTWARE, INC. ("Sterling"), assignee of IBM Credit Corporation
                                  --------                                      
("IBM Credit") and the undersigned borrower ("KnowledgeWare"), given in
  ----------                                  -------------            
amendment and restatement of the Revolving Loan and Security Agreement (the
                                                                           
"Original Agreement") dated June 23, 1994, by and between KnowledgeWare and IBM
- -------------------                                                            
Credit.


1.   DEFINITIONS

     1.1  Special Definitions. The following terms shall have the following
         --------------------
respective meanings in this Agreement:

     "Advance": any loan or advance made by Sterling to or for the account of
      -------                                                                
     KnowledgeWare pursuant to this Agreement.

     "Accounts":  as defined in the UCC, and to the extent not included therein,
      --------                                                                  
     any right to payment for the sale or licensing to any Person directly or
     through distributors, dealers, agents or other sales representatives of
     individual copies of computer software programs or other products owned or
     licensed by KnowledgeWare.

     "Advance Date": for a specific Advance, the Business Day on which Sterling
      ------------                                                             
     makes an Advance under this Agreement.

     "Available Credit": at any time, (1) the Maximum Advance Amount less (2)
      ----------------                                                       
     the Outstanding Advances at such time.

     "Borrowing Base": an amount equal to the percentage, set forth in
      --------------                                                  
     Attachment A, of the invoice amount of Eligible Accounts plus the
     percentages, if any, set forth in Attachment A of the value, as determined
     by Sterling in its sole reasonable discretion of such other assets of
     KnowledgeWare described opposite such percentages.

     Sterling may, from time to time and in its sole reasonable discretion,
     establish, review or revise the criteria for including or excluding certain
     assets in or from the Borrowing Base and for the valuation thereof.  No
     such revision shall cause the exclusion from the Borrowing Base of any
     Account within the Borrowing Base as of the effective date of such revision
     but shall operate with respect to Accounts arising after the effective date
     of such revision.  Any such revision to the Borrowing Base shall be
     effective on the day after KnowledgeWare receives written notice of such
     revision.

     "Business Day": any day other than a Saturday, Sunday, other day on which
      ------------                                                            
     commercial banks in New York City, New York are authorized or required by
     law to close or other date on which Sterling is closed.

                                     - 1 -
<PAGE>
 
     "Closing Date": the date upon which all conditions precedent to the
      ------------                                                      
     effectiveness of this Agreement are performed to the satisfaction of
     Sterling or waived in writing by Sterling.

     "Collateral":  as defined in Section 4.1.
      ----------                               

     "Default": either (1) an Event of Default, or (2) any event or condition
      -------                                                                
     which, but for the requirement that notice be given or time lapse or both,
     would be an Event of Default.

     "Delinquency Fee Rate": as defined in Attachment A.
      --------------------                              

     "Disclosure Schedule": the Disclosure Schedule attached to this Agreement
      -------------------                                                     
     as Schedule B.

     "Eligible Accounts": as defined in Section 3.3.
      -----------------                             

     "Environmental Laws": all statutes, laws, judicial decisions, regulations,
      ------------------                                                       
     ordinances, and other governmental restrictions relating to pollution the
     protection of the environment, occupational health and safety, or to
     emissions, discharges or releases of pollutants, contaminants, hazardous
     substances or wastes into the environment.

     "Environmental Liability": any claim, demand, obligation, cause of action,
      -----------------------                                                  
     allegation, order, violation, injury, judgment, penalty or fine, cost or
     expense, resulting from the violation or alleged violation of any
     Environmental Laws or the imposition of any Lien pursuant to any
     Environmental Laws.

     "ERISA":  the Employee Retirement Income Security Act of 1974, as amended,
      -----                                                                    
     or any successor statutes.

     "Event of Default": as defined in Section 7.1.
      ----------------                              

     "Extended Payment Term Account": an Account which allows for payment to be
      -----------------------------                                            
     made later than forty-five (45) days from the date of invoice provided it
     is to be paid by its terms on or before 365 days from the date of the
     invoice giving rise to such Account.

     "First Advance": the first Advance made under this Agreement by Sterling on
      -------------                                                             
     or about the Closing Date.

     "Guarantor":  the guarantors as set forth in Attachment B.
      ---------                                                

     "Hazardous Substances": all substances, wastes or materials to the extent
      --------------------                                                    
     subject to regulation as "hazardous substances" or "hazardous waste" under
     any Environmental Laws.

     "Line of Credit": as defined in Section 2.1.
      --------------                             

                                     - 2 -
<PAGE>
 
     "Line of Credit Note": the revolving note of KnowledgeWare, of even date
      -------------------                                                    
     herewith, payable to the order of Sterling in the maximum principal amount
     of $16,000,000, evidencing the obligations of KnowledgeWare to Sterling
     arising pursuant to Section 2.1 of this Agreement.

     "Material Adverse Effect": a material adverse effect on (1) the business,
      -----------------------                                                 
     operations, results of operations, assets, or financial condition of
     KnowledgeWare, (2) the aggregate value of the Collateral or the aggregate
     amount which Sterling would be likely to receive (after giving
     consideration to reasonably likely delays in payment and reasonable costs
     of enforcement) in the liquidation of such Collateral to recover
     KnowledgeWare's obligations in full, (3) KnowledgeWare's ability to perform
     its Obligations, or (4) the rights and remedies of Sterling under this
     Agreement.

     "Maximum Advance Amount": at any time the lesser of (1) the amount of the
      ----------------------                                                  
     Line of Credit at such time and (2) the Borrowing Base at such time.

     "Obligations":  all covenants, agreements, warranties, duties,
      -----------                                                  
     representations, loans, advances, liabilities and indebtedness of any kind
     and nature whatsoever now or hereafter arising, owing, due or payable from
     KnowledgeWare to Sterling or whether primary or secondary, joint or
     several, direct, contingent, fixed or otherwise, secured, unsecured or
     arising under this Agreement, the Line of Credit Note, the Term Note, the
     Other Agreements or any agreements previously, now or hereafter executed by
     KnowledgeWare and delivered to Sterling, or by oral agreement or operation
     of law and whether or not evidenced by instruments of indebtedness.
     Obligations shall include, without limitation, any third party claims
     against KnowledgeWare satisfied or acquired by Sterling.

     "Other Agreements": the Line of Credit Note, the Term Note, all security
      ----------------                                                       
     agreements, mortgages, leases, instruments, documents, guarantees,
     schedules of assignment, contracts and other agreements previously, now or
     hereafter executed by KnowledgeWare in connection with this Agreement and
     delivered to Sterling or delivered by or on behalf of KnowledgeWare to a
     third party and assigned to Sterling by operation of law or otherwise.

     "Outstanding Advances": at the time of determination, the unpaid principal
      --------------------                                                     
     amount of all Advances made by Sterling, but excluding the sums owed
     pursuant to the Term Note.

     "Periodic Rate": the Revolver Financing Charge or Delinquency Fee Rate, as
      -------------                                                            
     the case may be, multiplied by the quotient of the number of days elapsed
     in the applicable billing period divided by 360.

     "Permitted Liens": as defined in Attachment B.
      ---------------                              

     "Permitted Prior Liens": as defined in Attachment B.
      ---------------------                              

     "Person":  any individual association, firm, corporation, governmental
      ------                                                               
     body, agency or instrumentality or other entity whatsoever.

                                     - 3 -
<PAGE>
 
     "Policies":  as defined in Section 6.1 (w).
      --------                                  

     "Prime Rate": at any time, the average of the rates of interest announced
      ----------                                                              
     by Citibank N.A., the Chase Manhattan Bank, N.A., and Bank of America
     National Trust & Savings Association as their respective prime or base rate
     as of the last Business Day of the calendar month immediately preceding
     such time whether or not such announced rates are the actual rates charged
     by such banking institutions to their most creditworthy borrowers on an
     unsecured basis.

     "Revolver Financing Charge": as defined in Attachment A.
      -------------------------                              

     "Stock Warrant": collectively (i) the Warrant Agreement, of even date
      -------------                                                       
     herewith executed by KnowledgeWare to Sterling, providing for the issuance
     to Sterling of warrants to purchase shares of the common stock of
     KnowledgeWare on the terms provided therein; (ii) Common Stock Purchase
     Warrant Certificate, executed by KnowledgeWare, evidencing the warrants,
     and (iii) Registration Rights Agreement between KnowledgeWare and Sterling,
     relating to the warrants.

     "Term Note": the promissory note of KnowledgeWare payable to the order of
      ---------                                                               
     Sterling, of even date herewith, in the original principal amount of
     $6,000,000 given in amendment, increase, and restatement of the Term Note
     executed by KnowledgeWare and Payable to the order of Sterling, dated June
     23, 1994, in the original principal amount of $2,766,800.

     "UCC":  the Uniform Commercial Code in effect from time to time in the
      ---                                                                  
     state set forth in Attachment A.

     1.2  Other Defined Terms.  Terms not otherwise defined in this Agreement
which are defined in the UCC shall have the meanings assigned to them therein.

2.   LINE OF CREDIT/INTEREST RATES/CHARGES

     2.1  Line of Credit.  Subject to the terms and conditions set forth in this
          --------------                                                        
Agreement, on and after the Closing Date to but not including the date that is
the earlier of (i) the date on which this Agreement terminates pursuant to
Section 8.1 and (ii) the date on which Sterling terminates the Line of Credit
pursuant to Section 7.2, Sterling agrees to extend to KnowledgeWare a line of
credit in the maximum principal amount of Sixteen Million and no/100 Dollars
($16,000,000.00) (the "Line of Credit"), pursuant to which Sterling will make to
KnowledgeWare, from time to time, Advances in an aggregate amount at any one
time outstanding (excluding amounts advanced pursuant to Section 2.2 hereof) not
to exceed the Maximum Advance Amount; provided, however, that the initial
Advance made by Sterling hereunder shall be made to IBM Credit, in an amount
equal to the outstanding amount due under the line of credit portion of the
Original Agreement on the Closing Date, in connection with the assignment of the
Original Agreement by IBM Credit to Sterling.

                                     - 4 -
<PAGE>
 
     2.2  Term Note.  Subject to the terms and conditions set forth in this
          ---------                                                        
Agreement, Sterling agrees to amend, increase and restate the term loan (the
"Term Loan") to KnowledgeWare on the Closing Date in an original principal
amount equal to $6,000,000, a portion of which represents amounts outstanding to
IBM Credit with respect thereto under the Original Agreement on the Closing Date
and the remainder of which represents a portion of the initial Advance.  The
Term Loan shall be evidenced by the Term Note due and payable August 31, 1995,
unless accelerated in accordance with the terms thereof or of this Agreement.

     2.3  Interest.
          -------- 

          (a) Subject to paragraph (b) below of this Section 2.3, each Advance
shall accrue interest at a rate per annum equal to the lesser of (i) the
Revolver Financing Charge (as set forth in Attachment A) and (ii) the highest
rate from time to time permitted by applicable law.  Amounts received from
KnowledgeWare in excess of such highest rate from time to time permitted by
applicable law shall be considered reductions to principal to the extent of such
excess.

          (b) If any amount owed under this Agreement, the Line of Credit Note
or the Term Note is not paid when due (whether at maturity, by acceleration or
otherwise), the unpaid amount will bear interest from and including its due date
to and including the date Sterling receives payment unless Sterling receives the
unpaid amount from KnowledgeWare via a federal wire transfer before 10:30 a.m.
(Central Time), in which case interest shall accrue to and including the date
immediately preceding the date Sterling receives payment.  Such interest will
accrue at a rate per annum equal to the lesser of (i) the Delinquency Fee Rate,
or (ii) the highest rate from time to time permitted by applicable law.  Amounts
received from KnowledgeWare in excess of such highest rate from time to time
permitted by applicable law shall be considered reductions to principal to the
extent of such excess.

          (c) The Revolver Financing Charge is computed on the basis of a 360-
day year for the actual number of days elapsed.  The Delinquency Fee Rate is
computed on the basis of a 365-day year for the actual number of days elapsed.
The Revolver Financing Charge for each billing period shall be calculated by
multiplying the Periodic Rate for the billing period by the Average Daily
Balance (as hereinafter defined) of the Advances outstanding during said period
which were not past-due.  The Delinquency Fee Rate for each billing period shall
be calculated by multiplying the applicable Periodic Rate for the billing period
by the applicable Average Daily Balance of the Advances outstanding during said
period which were past-due.  The "Average Daily Balance" of the outstanding
Advances shall be equal to the sum of the principal balances of the Advances as
of the end of each day during the billing period, divided by the number of days
in the billing period.

     2.4  Charges.  KnowledgeWare hereby agrees to pay monthly to Sterling the
          -------                                                             
charges set forth in the "Other Charges" section of Attachment A to this
Agreement.  KnowledgeWare hereby acknowledges that any such charges are not
interest but that such charges, if unpaid, will constitute part of the principal
from time to time outstanding.

                                     - 5 -
<PAGE>
 
     2.5  Voluntary Prepayment.  KnowledgeWare may at any time prepay in whole
          --------------------                                                
or in part all amounts owed under this Agreement, the Line of Credit Note or the
Term Note.  Sterling may, in its sole discretion apply payments first to pay
interest and other amounts owing under this Agreement and then to pay the
principal amount owed by KnowledgeWare.  Sterling may, but shall not be
obligated to, apply principal payments to the oldest (earliest) Advances first.

     2.6  Payments.
          -------- 

          (a) If, on any date, the Outstanding Advances shall exceed the Maximum
Advance Amount (such excess, the "Shortfall Amount"), KnowledgeWare shall,
within one (1) Business Day from such date pay the Advances in an amount equal
to the Shortfall Amount plus interest at the Delinquency Fee Rate for the period
from and including the initial date of the occurrence of the Shortfall Amount to
and including the date Sterling receives payment for such Shortfall Amount,
unless Sterling receives the Shortfall Amount from KnowledgeWare via a federal
                                                                 ---          
wire transfer before 10:30 a.m. (Central Time), in which case interest shall
accrue to and including the date immediately preceding the date Sterling
receives such payment.

          (b) Accrued interest and Other Charges owed under this Agreement or
under the Line of Credit Note or the Term Note, and any charges hereafter agreed
to by the parties are payable monthly on receipt of Sterling's bill or statement
or Sterling may, at the direction of KnowledgeWare, add interest and Other
Charges to KnowledgeWare's outstanding Line of Credit loan balance as an Advance
subject to the provisions of Section 3.2(b) hereof, provided, however, that any
                                                    -----------------          
amount of accrued interest and Other Charges not paid when due (and not paid
through an Advance) shall bear interest from the date when due until paid at the
Delinquency Rate.  Each statement of account rendered by Sterling to
KnowledgeWare and relating to the Obligations shall be presumed to be correct
and accurate and shall constitute an account stated that is fully binding upon
KnowledgeWare unless, within ten (10) Business Days after the statement is
received by KnowledgeWare, KnowledgeWare shall give to Sterling written
objection specifying the error or errors, if any, contained in that statement.
KnowledgeWare shall be deemed to have received such statement three (3) Business
Days from the date Sterling mails such statement by United States first-class
mail, postage prepaid, and properly addressed to KnowledgeWare.

3.   LINE OF CREDIT - ADDITIONAL PROVISIONS

     3.1  Procedures for Advances.
          ----------------------- 

          (a) KnowledgeWare shall deliver to Sterling a written request
("Request for Advance") for each Advance.  KnowledgeWare may deliver a Request
for Advance via facsimile transmission.  The Request for Advance shall specify
(i) the requested Advance Date and (ii) the amount of the requested Advance,
KnowledgeWare shall include with each Request for Advance a list ("Schedule of
Accounts") of all Accounts created or acquired by KnowledgeWare since the
previous Schedule of Accounts.  KnowledgeWare shall not request an Advance in
excess of the Available Credit on the requested Advance Date for an Advance
after giving effect to the repayment of any Outstanding Advances to be made on
such date.

                                     - 6 -
<PAGE>
 
     3.2  (a)  Conditions to the First Advance.  Prior to or concurrently with
               -------------------------------                                
the making of the First Advance hereunder (i) KnowledgeWare shall have executed
and delivered to Sterling the Stock Warrant, (ii) all rights under the Original
Agreement and all instruments, guaranties and security agreements pertaining
thereto, shall have been fully assigned to Sterling by IBM Credit to the
satisfaction of Sterling, (iii) no liens upon any of the Collateral shall exist
other than the liens created pursuant to this Agreement and the Permitted Liens
specified in Attachment B of this Agreement.

          (b)  Conditions to Each Advance.  No Advance will be required to be
               --------------------------                                    
made by Sterling under this Agreement unless, on and as of the Advance Date, the
following statements shall be true to the satisfaction of Sterling:

               (i) The representations and warranties contained in this
     Agreement or in any document, instrument or Other Agreement are true and
     correct as though made on and as of such Advance Date;

               (ii) No event has occurred and is continuing, or after giving
     affect to such Advance or the application of the proceeds thereof, would
     result in or would constitute a Default (but not including any such event
     which has been disclosed by KnowledgeWare to Sterling in the Disclosure
     Schedule);

               (iii)  Both before and after giving effect to the making of such
     Advance, no Shortfall Amount exists.

     The submission by KnowledgeWare of a Request for Advance and the receipt by
KnowledgeWare of the proceeds of any Advance on any Advance Date shall be deemed
to be a representation and warranty by the KnowledgeWare that, as of and on such
Advance Date the statements set forth in (i) through (iii) of this subsection
(b) above are true statements.

     3.3  Eligible Accounts.  Sterling shall have the right in its sole
          -----------------                                            
reasonable discretion to determine, from time to time, eligibility of all
Accounts (the "Eligible Accounts") for inclusion in the Borrowing Base.  Without
limiting the generality of Sterling's sole reasonable discretion Sterling and
KnowledgeWare agree that the following Accounts will be deemed not to be
Eligible Accounts, and such Accounts which are not Eligible Accounts may be
revised from time to time by Sterling as set forth in the definition of
Borrowing Base above:

          (a)  Accounts, other than Extended Payment Term Accounts, that are
               created on nonstandard terms and/or that allow for payment to be
               made later than fortyfive (45) days from the date of the invoice
               giving rise to the Account;

          (b)  Subject to subparagraph (d) below, Extended Payment Term Accounts
               as to which any payment thereon is unpaid for more than thirty
               (30) days from the due date of the invoice or, in the case of
               Accounts which are not Extended Payment Term Accounts, as to
               which any payment thereon is unpaid for more than ninety (90)
               days from the date of the invoice;

                                     - 7 -
<PAGE>
 
          (c)  Accounts payable by an Account debtor if fifty percent (50%) or
               more of the outstanding balance of all Accounts payable by such
               Account debtor remains unpaid for more than ninety (90) days from
               the due date of the invoice;

          (d)  Extended Payment Term Accounts arising from sales or licenses to
               Persons who resell or relicense to governmental entities if
               payment to KnowledgeWare is not made within fifteen (15) days of
               the date that such Person has been paid by such governmental
               entity;

          (e)  Accounts payable by an Account debtor that is an officer,
               employee, agent, parent, guarantor, subsidiary, stockholder or
               affiliate (other than Sterling or IBM or either of its
               subsidiaries) of KnowledgeWare or is related to or has common
               shareholders, officers or directors with KnowledgeWare;

          (f)  Accounts arising from consignment sales;

          (g)  Accounts with respect to which the payment by the Account debtor
               is or may be conditional; provided, however, Accounts with
               respect to which the Account debtor is a state, local and United
               States government institution and public educational institutions
               which are conditioned on authorizations, appropriations or
               funding shall not be deemed conditional for purposes hereof;

          (h)  Accounts payable by any Account debtor that (i) is not a state,
               local or United States government institution or a public
               educational institution, or a commercial or institutional entity,
               or (ii) is not a resident of the United States;

          (i)  Accounts payable by any Account debtor (other than Sterling, IBM
               or either of its subsidiaries) to which KnowledgeWare is or may
               become liable for goods sold or services rendered by such Account
               debtor to KnowledgeWare, unless (i) the aggregate amount owed by
               KnowledgeWare to any such Account debtor is less than $50,000, or
               (ii) the aggregate amount owed by KnowledgeWare to any such
               Account debtor is less than ten percent (10%) of the aggregate
               accounts payable owed by such Account debtor to KnowledgeWare;

          (j)  Accounts arising from the sale or lease of goods purchased for a
               personal, family or household purpose;

          (k)  Accounts arising from the sale or lease of goods that have been
               used for demonstration purposes or loaned by KnowledgeWare to
               another party;

          (l)  Accounts which are progress payment accounts;

                                     - 8 -
<PAGE>
 
          (m)  Accounts payable by any Account debtor that is, or 
               KnowledgeWare knows will become, subject to proceedings under
               United States Bankruptcy Law or other law for the relief of
               debtors;

          (n)  Accounts which are not payable in U.S. Dollars;

          (o)  Accounts arising from the sale or lease of goods which are billed
               in advance of shipment by KnowledgeWare;

          (p)  Accounts as to which Sterling does not have a valid, perfected,
               first priority security interest;

          (q)  Accounts with respect to which KnowledgeWare has permitted or
               agreed to any extension, compromise or settlement, or made any
               change or modification of any kind or nature, including, but not
               limited to, any change or modification to the terms relating
               thereto; provided however, amendments may be made to the
               agreement with the Account debtor which gave rise to an Account
               without making such Account ineligible so long as such amendment
               does not alter the amount or term of the payments due from the
               Account debtor or adversely affect the Obligation of the Account
               debtor to pay the Account;

          (r)  Accounts which do not arise from undisputed bona fide
               transactions completed in accordance with the terms and
               conditions contained in the invoices and purchase orders relating
               thereto;

          (s)  Accounts which are discounted for the total amount due in respect
               of any Account for the remittance of payment to KnowledgeWare
               prior to the date such remittance is due pursuant to the payment
               terms for such Account;

          (t)  Accounts on cash on delivery (COD) terms;

          (u)  Accounts arising from maintenance or service contracts which are
               billed in advance of full performance of service;

          (v)  Accounts arising from bartered transactions;

          (w)  Accounts which do not constitute valid and binding enforceable
               obligations or which are subject to any dispute, offset,
               counterclaim or defense;

          (x)  Accounts arising from incentive payments, rebates, discounts,
               credits, and refunds from a supplier; and

          (y)  Any and all other Accounts which Sterling deems in its sole
               reasonable discretion to be ineligible.

                                     - 9 -
<PAGE>
 
     3.4  Reimbursement for Charges.  KnowledgeWare agrees to reimburse Sterling
          -------------------------                                             
for all charges paid by Sterling with respect to collection of checks and other
items of payment, all fees relating to the use and maintenance of a lockbox
account and with respect to remittances of proceeds of the loans hereunder.

     3.5  Collections.  KnowledgeWare shall instruct all Account debtors to
          -----------                                                      
remit payments directly to the lockbox address set forth in Attachment A to this
Agreement from which such remittances will be deposited to an account of
Sterling.  In addition, KnowledgeWare shall have such instruction printed in
conspicuous type on all invoices.  Sterling may at its option notify any Account
debtor or debtors of the assignment of Accounts, and directly collect the same.
All payments received by KnowledgeWare from its Account debtors, whether in the
form of money, checks, notes, drafts, or other things of value or items of
payment, shall be received by KnowledgeWare solely as agent and in trust for
Sterling.  KnowledgeWare shall properly endorse and deposit into the account of
Sterling, at the bank listed in Attachment A to this Agreement ("Bank"), on the
                                                                 ----          
day of receipt thereof, all original checks, drafts, acceptances, notes and
other evidences of, or properties constituting payment of, or on account of,
Accounts, including all cash, KnowledgeWare shall have no right and agrees not
to commingle with its own funds or to use, divert or withhold any of the
proceeds of any collections received thereon.  KnowledgeWare shall make entries
on its books and records in a form satisfactory to Sterling and shall keep a
separate account on its record books of all collections received thereon.  Until
delivery to Sterling, KnowledgeWare shall keep all remittances received separate
and apart from KnowledgeWare's funds so that they are capable of identification
as the property of Sterling.

     3.6  Collection Days.  All amounts received by Sterling in respect of any
          ---------------                                                     
Account may be credited by Sterling to the repayment of the Obligations under
this Agreement except for the Term Note, unless the Term Note has matured, or,
in Sterling's sole and absolute direction, may be disbursed to KnowledgeWare.
The crediting of amounts received by Sterling in respect of such Obligations
shall in all cases be subject to the final collection thereof.

     3.7  Power of Attorney.  KnowledgeWare hereby irrevocably appoints Sterling
          -----------------                                                     
(and any person designated by it) as KnowledgeWare's true and lawful attorney-
in-fact with full power to at any time, in good faith and in compliance with
commercially reasonable standards, in the sole and absolute discretion of
Sterling:

          (a)  upon the occurrence and during the continuance of an Event of
               Default, demand payment, enforce payment and otherwise exercise
               all KnowledgeWare's rights and remedies with respect to the
               collection of any Accounts;

          (b)  upon the occurrence and during the continuance of an Event of
               Default, settle, adjust, compromise, extend or renew any
               Accounts;

          (c)  settle, adjust or compromise any legal proceedings brought to
               collect any Accounts;

                                     - 10 -
<PAGE>
 
          (d)  upon the occurrence and during the continuance of an Event of
               Default, sell or assign any Accounts Upon such terms, for such
               amounts and at such time or times as Sterling may deem advisable;

          (e)  upon the occurrence and during the continuance of an Event of
               Default, discharge and release any Accounts;

          (f)  prepare, file and sign KnowledgeWare's name on any proof of claim
               or similar document against any Account debtor;

          (g)  prepare, file and sign KnowledgeWare's name on any notice of
               lien, claim of mechanic's lien, assignment or satisfaction of
               lien or mechanic's lien, or similar document in connection with
               any Accounts;

          (h)  endorse the name of KnowledgeWare upon any chattel paper,
               document, instrument, invoice, freight bill, bill of lading or
               similar document or agreement relating to any Account or goods
               pertaining thereto;

          (i)  endorse the name of KnowledgeWare upon any of the items of
               payment of proceeds and deposit the same in the account of
               Sterling for application to the Obligations;

          (j)  sign the name of KnowledgeWare to requests for verification of
               Accounts and notices thereof to Account debtors;

          (k)  sign the name of KnowledgeWare on any document or instrument that
               Sterling shall deem necessary or appropriate to perfect and
               maintain perfected the security interest in the Collateral
               contemplated under this Agreement and the other Agreements;

          (l)  make, settle and adjust claims under the Policies and endorse
               KnowledgeWare's name on any check, draft, instrument or other
               item of payment of the proceeds of the Policies; and

          (m)  take control in any manner of any item of payment or proceeds and
               for such purpose to notify the postal authorities to change the
               address for delivery of mail addressed to KnowledgeWare to such
               address as Sterling may designate.

          (n)  upon the occurrence and during the continuance of an Event of
               Default, but only after the expiration of the time period
               specified in the Extraordinary Cure Rights set forth in Section
               7.5 hereof, take any action as Sterling may deem necessary with
               respect to the Patents, Trademarks and Copyrights (each as
               hereinafter defined) including, but not limited to the assignment
               of all said Patents, Trademarks and Copyrights from KnowledgeWare
               to Sterling.

                                     - 11 -
<PAGE>
 
          (o)  upon the occurrence and during the continuance of an Event of 
               Default, sign the name of KnowledgeWare on any document or
               instrument that Sterling shall deem necessary or appropriate to
               enforce any and all remedies it may have under this Agreement, at
               law or otherwise.

The power of attorney granted by this Section is for value and coupled with an
interest and is irrevocable until the later of the payment in full of the
Obligations and the termination of this Agreement.

     3.8  Continuing Requirements.  KnowledgeWare shall:
          -----------------------                       

          (a)  from time to time, if required by Sterling, immediately upon
               their creation, deliver to Sterling copies of all invoices,
               delivery evidences and other documents relating to each Account;

          (b)  within seven (7) Business Days after KnowledgeWare's learning
               thereof, inform Sterling in writing of any rejection of goods or
               services by any Account debtor, delays in delivery of goods or
               performance of services, nonperformance of contracts and of any
               assertion of any claim, offset or counterclaim by any Account
               debtor;

          (c)  within seven (7) Business Days after KnowledgeWare's learning
               thereof, furnish to and inform Sterling in writing of all adverse
               information relating to the financial condition of any Account
               debtor;

          (d)  affix appropriate endorsements or assignments upon all items of
               payment and proceeds so that the same may be properly deposited
               by Sterling to Sterling's account;

          (e)  within three (3) Business Days after KnowledgeWare's learning
               thereof, notify Sterling in writing which Accounts may be deemed
               ineligible as defined in Subsection 1.3 herein;

          (f)  keep all goods rejected or returned by any Account debtor and all
               goods repossessed or stopped in transit by KnowledgeWare from any
               Account debtor segregated from other property of KnowledgeWare,
               holding the same in trust and as trustee for Sterling until
               otherwise directed in writing by Sterling;

          (g)  stamp or otherwise mark chattel paper and instruments now owned
               or hereafter acquired by it to show that the same are subject to
               Sterling's security interest and immediately thereafter deliver
               or cause such chattel paper and instruments to be delivered to
               Sterling or any agent designated by Sterling with appropriate
               endorsements and assignments to vest title and possession in
               Sterling;

                                     - 12 -
<PAGE>
 
          (h)  together with each Request for Advance, provide Sterling with a
               summary of the aging of the Accounts; and

          (i)  provide to Sterling a detailed aging report of its Accounts,
               which shall include its accounts receivable ledger and its on-
               line aging of Accounts and any other report listing other
               Collateral that Sterling may request, in a format acceptable to
               Sterling, no later than the fifteenth (15th) day of each month
               and containing information as of the close of business on the
               last day of the preceding month.

     3.9. Rights of Sterling.  Sterling may, without notice to KnowledgeWare and
          ------------------                                                    
at any time or times hereafter:

          (a)  verify with Account debtors or others the validity, amount or any
               other matter relating to any Account by mail, telephone or other
               means in the name of KnowledgeWare or Sterling; and

          (b)  take control in any manner of any cash or noncash items of
               payment or proceeds of Accounts and of any rejected, returned,
               repossessed or stopped in transit goods relating to Accounts.

     3.10.  Release.  KnowledgeWare releases Sterling from any and all claims
            -------                                                          
and causes of action which KnowledgeWare may now or hereafter have for any loss
or damage to it claimed to be caused by or arising from:

          (a)  any failure of Sterling to protect, enforce or collect, in whole
               or in part, any Account;

          (b)  Sterling's notification to any Account debtors thereon of
               Sterling's security interest in any of the Accounts;

          (c)  Sterling's directing any Account debtor to pay any sum owing to
               KnowledgeWare directly to Sterling; and

          (d)  any other act or omission to act on the part of Sterling, its
               officers, agents or employees, except for its gross negligence or
               willful misconduct.

     Sterling shall have no obligation to preserve rights to Accounts against
     prior parties.

     3.11.  Additional Requirements.  KnowledgeWare agrees to comply with the
            -----------------------                                          
requirements set forth in Attachment A to this Agreement.

     3.12.  Audit.  KnowledgeWare shall at all times permit Sterling (or any
            -----                                                           
person designated by it) upon demand, during KnowledgeWare's usual business
hours, to have access to audit, examine, and check the Collateral,
KnowledgeWare's other assets and any and all of

                                     - 13 -
<PAGE>
 
KnowledgeWare's books, records, files and business procedures and practices, and
permit the copying of the same and the making of abstracts therefrom.

4.   SECURITY - COLLATERAL

     4.1  Grant.  To secure KnowledgeWare's payment and performance of the
          -----                                                           
Obligations and to secure KnowledgeWare's prompt, full and faithful performance
and observance of all of the provisions under this Agreement and the Other
Agreements, KnowledgeWare hereby ratifies, confirms and grants to Sterling a
security interest in all of KnowledgeWare's right, title and interest in and to
the following, whether now owned or hereafter acquired or existing and wherever
located:

          (a)  all inventory and equipment, and all parts thereof, attachments,
               accessories and accessions thereto, products thereof and
               documents therefor;

          (b)  all Accounts, contract rights, chattel paper, instruments,
               deposit accounts, general intangibles other obligations of any
               kind, and all rights now or hereafter existing in and to all
               mortgages, security agreements, leases (other than real property
               leases to the extent the terms of which prohibit assignment) or
               other contracts securing or otherwise relating to any of the
               same;

          (c)  all intellectual property and trade secrets, including, without
               limitation,

               (i) all patents, patent applications and patentable inventions
               and (1) the inventions and improvements described and claimed
               therein; (2) any continuation, division, renewal, extension,
               substitute or reissue thereof or any legal equivalent in a
               foreign country for the full term thereof or the terms for which
               the same may be granted; (3) all rights to income, royalties,
               profits, awards, damages and other rights relating to said
               patents, applications and inventions including the right to sue
               for past, present and future infringement; and (4) any other
               rights and benefits relating to said patents, applications and
               inventions including any rights as a licensor or licensee of said
               patents, applications and inventions (the "Patents");

               (ii) all trademarks, trademark registrations, trademark
               applications, service marks, service mark registrations and
               service mark applications, trade names, tradestyles, and the
               goodwill underlying those trademarks and service marks and (1)
               any similar marks or amendments, modifications and renewals
               thereof and the goodwill represented by those and any legal
               equivalent in a foreign country for the full term or terms for
               which the same may be granted; (2) all rights to income,
               royalties, profits, damages and other rights relating to said
               trademarks and service marks including the right to sue for past,
               present or future infringement; and (3)

                                     - 14 -
<PAGE>
 
               any other rights and benefits relating to said trademarks and
               service marks including any rights as a licensor or licensee of
               said trademark and service mark (the "Trademarks");

               (iii)  all copyrights, copyright registrations and copyright
               applications, including without limitation those copyrights for
               computer programs, computer databases, computer programs, flow
               diagrams, source codes and object codes, computer software,
               technical knowledge and processes, formal or informal licensing
               arrangements, and all property embodying or incorporating such
               copyrights and (1) any similar rights or amendments,
               modifications and renewals thereof and any legal equivalent in a
               foreign country for the full term or terms for which the same may
               be granted; (2) all rights to income, royalties, profits, damages
               and other rights relating to said copyrights, including the right
               to sue for past, present and future infringement; and (3) any
               other rights and benefits relating to said copyrights (the
               "Copyrights");

          (d)  all rights now or hereafter existing in and to all mortgages,
               security agreements, leases or other contracts securing or
               otherwise relating to any of the foregoing;

          (e)  all substitutions and replacements for all of the foregoing;

          (f)  all books and records pertaining to any of the foregoing; and

          (g)  all proceeds of all of the foregoing and, to the extent not
               otherwise included, all payments under insurance or any
               indemnity, warranty or guaranty, payable by reason of loss or
               damage to or otherwise with respect to any of the foregoing.

     All of the above assets are hereinafter collectively referred to as
"Collateral."

     KnowledgeWare covenants and agrees with Sterling that: (A) the security
interest granted under this Agreement is in addition to any other security
interest from time to time held by Sterling; (B) subject to the Extraordinary
Cure Rights set forth in Section 7.5., Sterling may realize upon all or part of
any Collateral in any order it desires and any realization by any means upon any
Collateral will not bar realization upon any other Collateral; and (C) the
security interest hereby created is a continuing security interest and will
cover and secure the payment of all Obligations, both present and future, of
KnowledgeWare to Sterling pursuant to this Agreement and the other Agreements.

     4.2  Instruments.  KnowledgeWare shall execute and deliver, or cause to be
          -----------                                                          
executed and delivered, to Sterling at such time or times as Sterling may
request, all financing statements, continuation statements, security agreements,
assignments, certificates, certificates of title, applications for vehicle
titles, affidavits, reports, notices, schedules of accounts, and other
documents, instruments, agreements and other papers, and take any other action
that Sterling

                                     - 15 -
<PAGE>
 
may deem desirable to create, confirm, perfect or maintain perfected Sterling's
security interest in the Collateral.  KnowledgeWare shall make appropriate
entries on its books and records disclosing Sterling's security interest in the
Collateral.

     4.3  Permitted Technology Agreements.  Unless an Event of Default shall
          -------------------------------                                   
have occurred and be continuing and Sterling shall have exercised any of its
rights with respect to the intellectual property of KnowledgeWare as permitted
in Section 7.5 hereof, KnowledgeWare may, in the ordinary course of business,
grant licenses in and enter into end user, VAR, distributorship, marketing,
partnering and other similar types of agreements ("Permitted Technology
Agreements") with respect to its Copyrights, Trademarks, Patents, trade secrets
and other intellectual property (collectively, "Technology Property") as
KnowledgeWare may determine in its sole and absolute discretion, all without
notice to or consent of Sterling; provided, however, KnowledgeWare may not sell
KnowledgeWare's ownership of any of the Technology Property or grant an
exclusive license with respect to the Technology Property (other than exclusive
distributorship arrangements in certain territories) without the consent of
Sterling.  Promptly upon request of KnowledgeWare, Sterling shall confirm to a
Person with whom KnowledgeWare wishes to enter into a Permitted Technology
Agreement that (i) such Permitted Technology Agreement and KnowledgeWare's
performance thereunder is not adversely affected by the security interest
granted to Sterling hereunder, (ii) if true, that no notice has been given by
Sterling that would commence the running of the Extraordinary Cure Rights, and
(iii) provided such Person is not in default under the terms of such Technology
Product Agreement, Sterling will not disturb the rights of such Person in the
Technology Property in the event Sterling were to seek to exercise its rights or
remedies with respect to the Technology Property.

     4.4  Major Transaction Financing.  [INTENTIONALLY DELETED]
          ---------------------------                          


5.   CONDITIONS PRECEDENT

     5.1  Conditions Precedent to the Effectiveness of this Agreement.  The
          -----------------------------------------------------------      
effectiveness of this Agreement is subject to the satisfaction of, or waiver by
Sterling of, Sterling's receipt of the following and each of the following being
in full force and effect.

          (a)  this Agreement, executed and delivered by KnowledgeWare and
               Sterling;

          (b)  the Term Note, executed and delivered by KnowledgeWare;

          (c)  the Line of Credit Note, executed and delivered by KnowledgeWare;

          (d)  (i) copies of the resolutions of the Board of Directors of
               KnowledgeWare, certified by the secretary or assistant secretary
               of KnowledgeWare, authorizing the execution, delivery and
               performance of this Agreement and each Other Agreement executed
               and delivered in connection herewith, (ii) a certificate of the
               secretary or an assistant secretary of KnowledgeWare, in form and
               substance satisfactory to Sterling, certifying

                                     - 16 -
<PAGE>
 
               the names and true signatures of the officers of KnowledgeWare
               authorized to sign this Agreement and the Other Agreements, and
               (iii) copies of the articles of incorporation and bylaws of
               KnowledgeWare, certified by the secretary or assistant secretary
               of KnowledgeWare;

          (e)  certificates, dated as of a recent date, from the Secretary of
               State, or other appropriate authority, evidencing the good
               standing of KnowledgeWare in the jurisdiction of its organization
               and in each other jurisdiction where the ownership or lease of
               its property or the conduct of its business requires it to
               qualify to do business;

          (f)  copies of all approvals and consents from any Person in each case
               in form and substance satisfactory to Sterling,  which are
               required to enable KnowledgeWare to authorize, or required in
               connection with, (i) the execution, delivery or performance of
               this Agreement and each of the Other Agreements, and (ii) the
               legality, validity, binding effect or enforceability of this
               Agreement and each of the Other Agreements;

          (g)  a lockbox agreement executed by KnowledgeWare and the bank
               specified in Attachment A hereto, in form and substance
               satisfactory to Sterling;

          (h)  a blocked account agreement executed by KnowledgeWare and the
               bank specified on Attachment A hereto;

          (i)  a favorable opinion of counsel for KnowledgeWare, in form and
               substance satisfactory to Sterling;

          (j)  a ratification of the collateralized guaranties of the
               obligations under the Original Agreement executed by IWK
               Corporation, KnowledgeWare Worldwide, Inc., Matesys Corp. and
               KnowledgeWare International, Inc. in connection with the Original
               Agreement;

          (k)  Within 60 days from the Closing Date, the corporate guaranties
               executed by each of the guarantors set forth on Attachment B
               (other than the guarantors referenced in (j) above);

          (l)  UCC-3 Assignment Financing Statements for each jurisdiction
               requested by Sterling, executed by IBM Credit and KnowledgeWare;

          (m)  all such other statements, certificates, documents, instruments,
               financing statements, agreements and other information with
               respect to the matters contemplated by this Agreement as Sterling
               shall have reasonably requested, including, but not limited to
               those specified in Attachment A.

                                     - 17 -
<PAGE>
 
6.   WARRANTIES, REPRESENTATIONS, AND COVENANTS

     6.1  Affirmative Warranties, Representations and Covenants.  Except as
          -----------------------------------------------------            
otherwise specifically provided in any of the Other Agreements, KnowledgeWare
warrants and represents to and covenants with Sterling that:

          (a)  Each Account is based on an actual and bona fide sale or license
               and delivery of goods or rendition of services, made, granted or
               performed by KnowledgeWare, in the ordinary course of its
               business; the Account debtors have accepted such license, goods
               or services, owe and are obligated to pay the full amounts stated
               in the invoices according to their terms, without any dispute,
               offset, defense or counterclaim and have the ostensible authority
               to contract; and there are no proceedings or actions known to
               KnowledgeWare which are pending or threatened against any Account
               debtor that might result in any material adverse change in such
               Account debtor's financial condition;

          (b)  KnowledgeWare has and shall at all times have good and valid
               title to all Collateral free and clear of all liens, security
               interests, encumbrances and claims of any Person, except for
               Permitted Liens;

          (c)  Sterling's security interest in the Collateral is and shall at
               all times constitute a perfected security interest in the
               Collateral (to the extent perfection can be achieved by the
               filing of financing statements pursuant to the UCC) which
               security interest is not and shall at no time become subordinate
               or junior to the security interest lien, encumbrance or claim of
               any other Person except for Permitted Prior Liens;

          (d)  Except as set forth in Schedule "A" attached hereto,
               KnowledgeWare has no registered Patents, Trademarks or
               Copyrights, and if KnowledgeWare hereafter elects to register a
               Patent, Trademark or Copyright, KnowledgeWare shall give Sterling
               prior written notice thereof so that Sterling may perfect its
               security interest in the applicable United States Patent,
               Trademark or Copyright Office.

          (e)  KnowledgeWare is and shall at all times during the term of this
               Agreement be, a corporation duly organized, validly existing and
               in good standing under the laws of the state of its incorporation
               set forth in Attachment A, and qualified and licensed to do
               business in each jurisdiction in which the nature of its business
               or property requires it to be qualified or licensed;

          (f)  KnowledgeWare has the right and is duly authorized to enter into
               this Agreement and the Other Agreements, and the execution,
               delivery and performance of this Agreement and the Other
               Agreements by the KnowledgeWare do not and will not violate
               KnowledgeWare's articles of

                                     - 18 -
<PAGE>
 
               incorporation or by-laws, any law, rule, regulation, order, writ,
               judgment, injunction, decree, determination or award presently in
               effect having applicability to KnowledgeWare, or any provisions
               of any indenture, agreement, document, instrument or undertaking
               to which KnowledgeWare is now or hereafter becomes a party or by
               which it is, may be or hereafter becomes bound;

          (g)  KnowledgeWare is not a party to any labor dispute; there are no
               strikes or walkouts or labor controversies pending or threatened
               against the KnowledgeWare;

          (h)  each "employee benefit plan", "employee pension benefit plan",
               "defined benefit plan", or "multiemployer benefit plan" which
               KnowledgeWare has established, maintained, or to which it is
               required to contribute (collectively, the "Plans") is in
               compliance with all applicable provisions of ERISA and the Code
               and the rules and regulations thereunder as well as the Plan's
               terms and conditions, except those provisions, rules,
               regulations, terms or conditions, the violation of which would
               not have Material Adverse Effect; there have been no "prohibited
               transactions" and no "reportable event" has occurred within the
               last 60 months with respect to any Plan, and KnowledgeWare shall
               promptly notify Sterling in writing after it learns of the
               occurrence of any event which would constitute a "reportable
               event" under ERISA or any regulation thereunder, or that the
               PBGC, as defined below, has instituted or will institute
               proceedings to terminate any Plan; KnowledgeWare has no
               "multiemployer benefit plan"; the terms "employee benefit plan",
               "employee pension benefit plan", "defined benefit plan", and
               "multiemployer benefit plan" have the respective meanings
               assigned to them in Section 3 of ERISA and any applicable rules
               and regulations thereunder; KnowledgeWare has not incurred any
               "accumulated funding deficiency" within the meaning of ERISA or
               incurred any liability to the Pension Benefit Guaranty
               Corporation (the "PBGC") in connection with a Plan (other than
               for premiums due in the ordinary course);

          (i)  except for conditions or circumstances that could not have a
               Material Adverse Effect;

               1)   KnowledgeWare has obtained all government approvals required
                    with respect to the operation of their businesses under any
                    Environmental Law and shall comply with all Environmental
                    Laws in all material respects;

               2)   (i) KnowledgeWare has not generated, transported or disposed
                    of any Hazardous Substance; (ii) KnowledgeWare is not
                    currently generating, transporting or disposing of any
                    Hazardous Substance; (iii) KnowledgeWare has no knowledge
                    that (a) any of its real

                                     - 19 -
<PAGE>
 
                    property (whether owned, leased, or otherwise directly or
                    indirectly controlled) has been used for the disposal of or
                    has been contaminated by any Hazardous Substance, or (b) any
                    of its business operations have contaminated lands or water
                    of others with any Hazardous Substance and shall take
                    commercially reasonable efforts to prevent any such release
                    of any subject to any Environmental Liability and, to the
                    best of KnowledgeWare's knowledge, any threatened
                    Environmental Liability; (v) KnowledgeWare has not received
                    any notice of or otherwise learned of any governmental
                    investigation evaluating whether any remedial action is
                    necessary to respond to a release or threatened release of
                    any Hazardous Substance for which KnowledgeWare may be
                    liable; (vi) KnowledgeWare is not in violation of any
                    Environmental Law; (vii) there are no proceedings or
                    investigations pending against KnowledgeWare with respect to
                    any violation or alleged violation of any Environmental Law;
                    provided however, that the parties acknowledge that use,
                    storage and disposal of certain such Hazardous Substances
                    that are incidental to KnowledgeWare's or its Subsidiaries'
                    business shall be excluded from representations (i) and (ii)
                    above, provided, further, that KnowledgeWare is at all times
                    utilizing, storing and disposing such Hazardous Substances
                    in accordance with all applicable Environmental Laws and in
                    a manner designed to minimize the risk of any spill,
                    contamination, release or discharge of Hazardous Substances
                    other than as authorized by Environmental Laws;

          (j)  KnowledgeWare shall notify Sterling, promptly upon its obtaining
               knowledge of any non-routine proceeding or inquiry by any
               governmental authority with respect to the presence of any
               Hazardous Substances on or in any property nor or hereafter
               owned, leased or otherwise controlled (directly or indirectly) by
               KnowledgeWare, (ii) all claims made or threatened by any Person
               or governmental authority against KnowledgeWare or any of
               KnowledgeWare's assets relating to any loss or injury resulting
               from any Hazardous Substance, (iii) KnowledgeWare's discovery of
               evidence of disposal of or environmental contamination by any
               Hazardous Substance on any property now or hereafter owned,
               leased or otherwise controlled (directly or indirectly) by
               KnowledgeWare, and (iv) any occurrence or condition which could
               constitute a violation of any Environmental Law which violation
               could have a Material Adverse Effect;

          (k)  KnowledgeWare possesses such assets, licenses, patents, patent
               applications, copyrights, service marks, trademarks, tradenames
               and trade secrets and all rights and other property relating
               thereto or arising therefrom as are necessary or advisable to
               continue to conduct its present and proposed business activities,
               and such property is owned by the

                                     - 20 -
<PAGE>
 
               KnowledgeWare free from any lien, encumbrance, or claim of any
               third party other than Permitted Liens and Permitted Prior Liens;

          (l)  this Agreement, the Other Agreements, and all of the other
               documents executed and delivered by the KnowledgeWare in
               conjunction herewith are the legal, valid and binding obligations
               of KnowledgeWare and, as applicable, each Guarantor which is
               party thereto, and are enforceable in accordance with their
               terms, except as such enforceability may be limited by the effect
               of any applicable, bankruptcy, insolvency, reorganization,
               fraudulent conveyance, moratorium or similar laws affecting
               creditors, rights generally or the general equitable principles
               relating thereto;

          (m)  each Guarantor has, or at the time of execution and delivery of
               its guaranty will have, the right and power to and is or will be
               duly authorized to make any guaranty given to Sterling;

          (n)  all financial statements and information relating to
               KnowledgeWare and any Guarantor which have been delivered (except
               as set forth in the Disclosure Schedule) and all financial
               statements and information relating to KnowledgeWare and any
               Guarantor which may hereafter be delivered by KnowledgeWare or
               any Guarantor to Sterling are, and upon delivery shall be, true
               and correct and have been, and upon delivery will be, prepared in
               accordance with generally accepted accounting principles and
               except as set forth in the Disclosure Schedule, there has been no
               material adverse change in the financial or business condition of
               KnowledgeWare since the submission of any such financial
               information to Sterling;

          (o)  there are no actions or proceedings pending or threatened against
               KnowledgeWare and no change or development involving a
               prospective change, which has or could reasonably be expected to
               have a Material Adverse Effect except as disclosed to Sterling by
               KnowledgeWare by the Disclosure Schedule;

          (p)  KnowledgeWare shall maintain all of its properties (business and
               otherwise) in good condition and repair and pay and discharge all
               costs of repair and maintenance thereof and all rental and
               mortgage payments and related charges pertaining thereto;

          (q)  KnowledgeWare will use commercially reasonable efforts to collect
               all Accounts owed;

          (r)  KnowledgeWare has duly filed and shall hereafter duly file all
               federal, state, local and other governmental tax returns which it
               is required by law to file;

                                     - 21 -
<PAGE>
 
          (s)  subject to KnowledgeWare's right to contest taxes in good faith,
               all taxes, levies, assessments and governmental charges of any
               nature which are or may become due by KnowledgeWare have been and
               will be fully paid when due, or KnowledgeWare has made provision
               for the payment thereof in accordance with generally accepted
               accounting principles and KnowledgeWare shall promptly pay when
               due all such tax liabilities which may hereafter accrue;

          (t)  KnowledgeWare shall maintain a system of accounting in accordance
               with generally accepted accounting principles and ledger and
               account records which contain such information as may be
               requested by Sterling;

          (u)  KnowledgeWare shall deliver to Sterling:

               1)   within ninety (90) days after the end of each of
                    KnowledgeWare's fiscal years, a reasonably detailed balance
                    sheet and a reasonably detailed profit and loss statement
                    covering KnowledgeWare's consolidated operations for such
                    fiscal year, prepared in accordance with generally accepted
                    accounting standards, audited by an independent certified
                    public accountant satisfactory to Sterling and containing an
                    opinion of such public accountant in form and substance
                    reasonably satisfactory to Sterling, accompanied by a
                    reasonably detailed unaudited balance sheet on a
                    consolidating basis as of the last date of such fiscal year
                    and an unaudited profit and loss statement on a
                    consolidating basis covering KnowledgeWare's operations for
                    such fiscal year, prepared in accordance with generally
                    accepted accounting standards.

               2)   within forty-five (45) days after the end of each of
                    KnowledgeWare's first three fiscal quarters, KnowledgeWare
                    shall deliver to Sterling a reasonably detailed balance
                    sheet as of the last day of such quarter and profit and loss
                    statement covering KnowledgeWare's operations for such
                    quarter (subject to normal year-end audit adjustments),
                    prepared in accordance with generally accepted accounting
                    standards on both a consolidated and consolidating bases.

               (3)  as soon as practicable following the request therefor by
                    Sterling, any other report reasonably requested by Sterling
                    relating to the Collateral or the financial condition of
                    KnowledgeWare.

Each report, statement, or document delivered or caused to be delivered to
Sterling under this Subsection 6.1(t) or Attachment A shall be accompanied by
the certificate of an authorized officer of KnowledgeWare to the effect that to
the best of such officer's knowledge, after due diligence and following a
reasonably independent investigation and review, the same is complete

                                     - 22 -
<PAGE>
 
and correct and thoroughly and accurately presents the financial condition of
KnowledgeWare and that there exists on the date of delivery of said certificate
no condition or event which constitutes a Default or Event of Default under this
Agreement or any of the Other Agreements;

          (v)  KnowledgeWare shall within seven (7) days supply Sterling with
               such other information concerning its or and Guarantor's affairs
               as Sterling from time to time hereafter may reasonably request,
               including without limitation the names and addresses of any
               corporations that KnowledgeWare acquires;

          (w)  The address of the principal place of business and chief
               executive office of KnowledgeWare and each subsidiary is as set
               forth in Attachment B to this Agreement.  The books and records
               of KnowledgeWare, and all of its chattel paper and records of
               Accounts, are maintained exclusively at such location.  There is
               no location in which KnowledgeWare has any of the Collateral
               (except for vehicles and inventory in transit for processing)
               other than those locations identified in Attachment B.  There is
               no location in which KnowledgeWare has a place of business other
               than those locations identified in Attachment B pursuant to the
               preceding sentence and those other locations identified in
               Attachment B. Attachment B also contains a complete list of the
               legal names and addresses of each warehouse at which
               KnowledgeWare's inventory is stored.  All receipts received by
               KnowledgeWare from any warehouseman shall state that the goods
               covered shall be delivered only to KnowledgeWare, KnowledgeWare
               agrees to notify Sterling in writing at least thirty (30) days
               prior to the effective date of any change in the information
               listed in Attachment B.

          (x)  KnowledgeWare, at its sole expense, shall keep and maintain the
               Collateral insured for its full insurable value (if any) against
               loss or damage by fire, theft, explosion, sprinklers and all
               other hazards and risks ordinarily insured against by other
               owners or users of such properties and interests in properties in
               similar businesses.  To the extent applicable, all such insurance
               policies ("Policies") shall be in form, with companies in amounts
               and with deductibles satisfactory to Sterling.  KnowledgeWare
               shall deliver to Sterling true and correct copies of the Policies
               as well as such evidence of insurance as Sterling may from time
               to time require, and, on Sterling's request, evidence of payment
               of all premiums therefor.  Each of the Policies shall contain an
               endorsement, in a form satisfactory to Sterling, showing loss
               payable to Sterling; upon receipt of proceeds by Sterling the
               same shall be applied on account of Obligations.  KnowledgeWare
               agrees to instruct each insurer to give Sterling, by endorsement
               upon the Policy issued by it or by independent instruments
               furnished to Sterling, at least ten (10) days' written notice
               before any Policy shall be altered or canceled and that no act or
               default of KnowledgeWare or any other person shall affect the
               right of Sterling to

                                     - 23 -
<PAGE>
 
               recover under the Policies.  KnowledgeWare hereby directs all
               insurers under the Policies to pay all proceeds directly to
               Sterling; and

          (y)  KnowledgeWare shall advise Sterling within seven (7) days of the
               commencement or institution of legal proceedings filed against
               the KnowledgeWare subsequent to the execution of this Agreement
               before any court, administrative board or tribunal which, in the
               event of an adverse decision to KnowledgeWare, would have a
               material adverse effect on the KnowledgeWare's condition
               (financial or otherwise), operations, properties or prospects or
               the KnowledgeWare's ability to perform its Obligations or the
               rights and remedies of Sterling under this Agreement and the
               Other Agreements.

     Each and every representation and warranty contained herein is qualified by
     all matters set forth in the Disclosure Schedule.

     6.2  Negative Covenants.  KnowledgeWare agrees with Sterling that
          ------------------                                          
KnowledgeWare will not at any time (without Sterling's express prior written
consent, which written consent will not be unreasonably withheld or delayed):

          (a)  other than in the ordinary course of its business or as permitted
               by (1) below, consummate the sale, lease or other disposition of
               or transfer of any of its assets; provided, however, that this
               Subsection 6.2(a) shall not prohibit any sale, financing or other
               disposition of any Account of any foreign subsidiary of
               KnowledgeWare (as set forth on Attachment B), so long as such
               transaction will not result in an Event of Default after giving
               effect to any distribution intercompany advance or other
               intercompany transaction which may result, directly or
               indirectly, from such disposition;

          (b)  consummate the merger or consolidation with another corporation,
               other than the merger of a subsidiary into KnowledgeWare with
               KnowledgeWare as the surviving entity;

          (c)  change (i) its name, identity or corporate existence in any
               manner, or (ii) change the location of its chief executive office
               or chief place of business;

          (d)  acquire any other corporation;

          (e)  enter into any transaction not in the usual course of its
               business which might have a Material Adverse Effect; provided,
               however, the entry into (as opposed to the consummation of)
               agreements for merger with or acquisition by others, or similar
               types of transactions shall not be a violation of this covenant;

          (f)  guarantee or indemnify or undertake to become in any way liable
               with respect to the obligations of any Person, except (i) by
               endorsement of

                                     - 24 -
<PAGE>
 
               instruments or items of payment for deposit to the general
               account of KnowledgeWare which are transmitted or turned over to
               Sterling on account of the obligations, (ii) such indemnities and
               undertakings which would not in the aggregate have a Material
               Adverse Effect, and such guarantees as are permitted under (1)
               below;

          (g)  redeem, retire, purchase or otherwise acquire, directly or
               indirectly, any material portion of KnowledgeWare's capital
               stock, except pursuant to agreements, if any, with Sterling;

          (h)  make any change in KnowledgeWare's capital structure or in any of
               its business objectives, purposes or operations which might in
               any way have a Material Adverse Effect (for purposes of the
               foregoing, the sale of stock by KnowledgeWare which does not
               violate Section 7.1(p), shall not be deemed to be such a change
               in capital structure;

          (i)  make any distribution of KnowledgeWare's property or assets to
               its shareholders in respect of their stock in KnowledgeWare;

          (j)  incur any debts outside of the ordinary course of KnowledgeWare's
               business except (i) renewals, extensions and refinancings of
               existing debts and interest thereon, (ii) indebtedness by and
               between the KnowledgeWare and its subsidiaries as permitted in
               (1) below, capitalized lease obligations; and (iv) purchase money
               debt arising in connection with equipment purchases, provided,
               however, that the aggregate amount of debt specified in (iii) and
               (iv) above shall not exceed the ceiling, imposed under (1) below;

          (k)  make any loans, advances, contributions or payments of money or
               goods to any subsidiary, affiliated or parent corporation or to
               any officer, director or stockholder of KnowledgeWare or of any
               such corporation including, without limitation, paying any
               dividend on or making any payment on account of any capital stock
               of KnowledgeWare or indebtedness of KnowledgeWare to any of the
               foregoing, except for (i) compensation for personal services
               actually rendered in an amount not to exceed that available on an
               arms length basis, and (ii) loans to subsidiaries as permitted
               under (1) below; and (iii) advances to such officers not to
               exceed $200,000 in the aggregate at any one time; or

          (l)  make any loan or transfer any money to or guarantee any
               indebtedness of KnowledgeWare's domestic subsidiaries and foreign
               subsidiaries who have guaranteed the Obligations to the extent at
               any time the aggregate outstanding balance of such loans,
               transfers of money or guarantees arising from and after March 31,
               1994 when added to the aggregate outstanding balance at such time
               under (j) (iii) and (vi) above shall exceed the sum of
               $1,500,000; or make any loan or transfer any money to or

                                     - 25 -
<PAGE>
 
               guarantee any indebtedness of KnowledgeWare's foreign
               subsidiaries who have not guaranteed the Obligations to the
               extent at any time the aggregate outstanding balance of such
               loans, transfers of money or guarantees arising from and after
               March 1, 1994 shall exceed the sum of $200,000.

     7.  DEFAULT


     7.1  Definition.  Any one or more of the following events shall constitute
          ----------                                                           
an event of default ("Event of Default") by KnowledgeWare under this Agreement
and the Other Agreements:

          (a)  Subject to the final sentence of this Section 7.1, KnowledgeWare
               or any Guarantor breaches any term, provision, condition or
               covenant contained in this Agreement, the Line of Credit Note,
               the Term Note, in any of the Other Agreements or in any guaranty
               of a Guarantor;

          (b)  Any warranty, representation, statement, report, or certificate
               made or delivered by KnowledgeWare or any of its officers,
               employees, or agents or by any Guarantor to Sterling is not true
               and correct in any material respect at the time when made or
               deemed made other than as set forth in the Disclosure Schedule;

          (c)  KnowledgeWare fails to immediately pay any of the Obligations
               when due and payable or declared to be due and payable and such
               failure is not cured within the cure period provided below;

          (d)  The occurrence of any event or circumstance which could have a
               Material Adverse Effect other than as set forth in the Disclosure
               Schedule;

          (e)  KnowledgeWare consummates the sale, transfer, conveyance,
               exchange, assignment, mortgage, pledge, charge or grant of a
               security interest in or otherwise disposes of or in any way parts
               with the possession of the Collateral, other than in the ordinary
               course of business, or as otherwise permitted under this
               Agreement;

          (f)  KnowledgeWare removes, other than in the ordinary course of
               business and as otherwise permitted under this Agreement, any
               material part of the Collateral from any of KnowledgeWare's
               locations specified in Attachment B to this Agreement;

          (g)  KnowledgeWare abandons the Collateral or any material part
               thereof;

          (h)  Other than as set forth in the Disclosure Schedule, any judgment
               in excess of One Hundred Thousand ($100,000) Dollars is entered
               against KnowledgeWare and such judgment is not satisfied,
               dismissed, stayed or

                                     - 26 -
<PAGE>
 
               superseded by bond within thirty (30) days after the date of
               entry thereof (and in the event of a stay or supersedeas bond
               such judgment is not discharged within 30 days after termination
               of such stay or bond);

          (i)  There issues a warrant of distress for any rent or taxes with
               respect to any premises occupied by KnowledgeWare in or upon
               which the Collateral, or any part thereof, may at any time be
               situated which could be reasonably expected to have a Material
               Adverse Effect, other than as set forth in the Disclosure
               Schedule;

          (j)  KnowledgeWare suffers or permits the Collateral to be seized or
               taken in execution without the consent of Sterling;

          (k)  KnowledgeWare fails to insure or keep insured the Collateral
               within the provisions of this Agreement and such failure is not
               cured within the cure period provided below;

          (l)  KnowledgeWare suspends business other than suspension due to war
               or Acts of God which continue for a period not to exceed seven
               (7) days;

          (m)  (i)    KnowledgeWare shall become insolvent or generally fail to
                      pay, or shall admit its inability or refusal to pay debts
                      as they become due;

               (ii)   KnowledgeWare shall apply for, consent to, or acquiesce in
                      the appointment of a trustee, receiver or other custodian
                      for KnowledgeWare or for its properties, assets, business
                      or undertakings;

               (iii)  any bankruptcy, reorganization, debt arrangement or other
                      case or proceeding under any bankruptcy or insolvency law,
                      or any dissolution or liquidation proceeding, shall be
                      commenced in respect to KnowledgeWare and, if filed
                      involuntarily against KnowledgeWare, is not dismissed
                      within ninety (90) days; or

               (iv)   KnowledgeWare shall take any action to authorize, or in 
                      the furtherance of, any of the foregoing;

          (n)  Any material guaranty of any or all of the KnowledgeWare's
               Obligations executed by any Guarantor in favor of Sterling shall
               at any time for any reason cease to be in full force and effect
               or shall be declared to be null and void by a court of competent
               jurisdiction, or the validity or enforceability thereof shall be
               contested or denied by any Guarantor, or any Guarantor shall deny
               that it, he or she has any further liability or obligation
               thereunder or any Guarantor shall fail to comply with or observe
               any of the terms, provisions or conditions contained in said

                                     - 27 -
<PAGE>
 
               Guaranty, and in the case of any of the foregoing, such event or
               failure is not cured within the cure period provided below;

          (o)  Except as set forth in the Disclosure Schedule, any event shall
               occur or condition shall exist under any agreement or instrument
               relating to any debt owed by the KnowledgeWare in excess of
               $100,000 and shall continue after the applicable grace period, if
               any, specified in such agreement or instrument if the effect of
               such nonpayment, other condition or conditions is to accelerate,
               or permit the acceleration of, the maturity of such debt for any
               reason whatsoever;

          (p)  (i) Any person or entity becomes the beneficial owner of forty-
               five (45%) percent or more of the voting shares of any class of
               capital stock of the KnowledgeWare or (ii) the election as a
               director of the KnowledgeWare of any person not nominated by the
               Board of Directors of the KnowledgeWare for such position.  For
               purposes of this Section 7.1(p), a person or entity shall be
               deemed to have "beneficial ownership" with respect to and shall
               be deemed to "beneficially own" any securities of the
               KnowledgeWare in accordance with Section 13 (or any successor
               provision) of the Securities Exchange Act of 1934, as amended
               (the "Exchange Act") and the rules promulgated by the Securities
               and Exchange Commission thereunder, provided that a person or
               entity shall be deemed to have beneficial ownership of all
               securities that any such person or entity has a right to acquire,
               whether such right is exercisable immediately or only after the
               passage of time and without regard to the 60-day limitation
               referred to in Rule 13d-3.

          (q)  there shall occur a "reportable event" with respect to any Plan,
               or any Plan shall be subject to termination proceedings (whether
               voluntary or involuntary) and there shall result from such
               "reportable event" or termination proceedings a liability of
               KnowledgeWare to PBGC which in the opinion of Sterling will have
               a Material Adverse Effect.

          (r)  KnowledgeWare is in default under the terms of any of the Other
               Agreements beyond the applicable Cure Periods therein.

     Notwithstanding the foregoing, there shall be no Event of Default as to (c)
     above unless such default shall not be cured within one (1) day after
     written notice thereof to the KnowledgeWare by Sterling or five (5) days
     after such payment becomes due in accordance with the terms of any document
     evidencing same and there shall, be no Event of Default as to (k) or (n)
     above unless such default shall not be cured within thirty (30) days from
     the date of the event giving rise to the Default.  Further there shall be
     no Event of Default as to (a) attributable to breaches of the following
     paragraphs of this Agreement unless such breach shall not be cured within
     thirty (30) days from the date of the event giving rise to the Default: the
     first and second sentences of Section 3.5, 3.8(f), and Sections
     6.1(p)(q)(x).

                                     - 28 -
<PAGE>
 
     7.2  Rights of Sterling.  Upon the occurrence and during the continuance of
          ------------------                                                    
any Event of Default Sterling may:

          (a)  declare all or any of the obligations immediately due and payable
               together with all court costs and all costs and expenses of
               repossession and collection activity, including, but not limited
               to, reasonable attorney's fees reasonably incurred;

          (b)  terminate the Line of Credit;

          (c)  exercise any or all of the rights accruing to a secured party
               upon default by a debtor under the Uniform Commercial Code and
               any other applicable laws;

          (d)  sell, lease or otherwise dispose of the Collateral at public or
               private sale;

          (e)  at its sole election and without demand enter, with or without
               process of law, any premises where Collateral might be and,
               without charge or liability to Sterling therefor, do one or more
               of the following:

               (i)    take possession of the Collateral and use or store it in
                      said premises or remove it to such other place or places
                      as Sterling may deem convenient;

               (ii)   take possession of all or part of such premises and the
                      Collateral and place a custodian in the exclusive control
                      thereof until completion of enforcement, under the UCC or
                      other applicable law, of Sterling's security interest in
                      the Collateral or until Sterling's removal of the
                      Collateral to such other place or places as Sterling may
                      deem convenient;

               (iii)  remain on such premises and use the same, together with
                      KnowledgeWare's materials, supplies, books and records,
                      for the purpose of liquidating or collecting such
                      Collateral and conducting and preparing for disposition of
                      such Collateral; and

               (iv)   remove the same to such place or places as Sterling may 
                      deem convenient for the purpose of IBM Credit's using 
                      the same in connection with Sterling's liquidation and
                      collection of such Collateral and to conduct and prepare
                      for the disposition of such Collateral (and KnowledgeWare
                      grants Sterling a security interest in all KnowledgeWare
                      contract related material, supplies, books, and records
                      for such purpose as those described above);

                                     - 29 -
<PAGE>
 
     provided that upon the occurrence of any Event of Default set forth in
     Section 7.1(m) all of the Obligations automatically shall become
     immediately due and payable together with all such costs and expenses.

     7.3  KnowledgeWare's Obligations.  Upon the occurrence and during the
          ---------------------------                                     
continuance of an Event of Default, KnowledgeWare shall, if Sterling requests,
assemble the Collateral and make it available to Sterling at a place or places
to be designated by IBM Credit, KnowledgeWare recognizes that if KnowledgeWare
fails to perform, observe or discharge any of its Obligations under this
Agreement or the Other Agreements, no remedy at law will provide adequate relief
to Sterling; therefore, KnowledgeWare agrees that Sterling shall be entitled to
temporary and permanent injunctive relief in any such case without the necessity
of proving actual damages.  All of Sterling's rights and remedies granted under
this Agreement and Other Agreements are cumulative and non-exclusive.

     7.4  Waiver.  Upon the occurrence and during the continuance of an Event of
          ------                                                                
Default, KnowledgeWare waives and releases: any and all claims and causes of
action which it may now or ever have against Sterling as a result of any
possession, repossession, collection or sale by Sterling of any of the
Collateral, notwithstanding the effect of such possession, repossession,
collection or sale upon KnowledgeWare's business; all rights of redemption from
any such sale; and the benefit of all valuation, appraisal and exemption laws.
Sterling's only obligation in respect to its repossession, collection or sale of
any Collateral is to act in a commercially reasonable manner.  If Sterling seeks
to take possession of any of the Collateral by replevin or other court process,
KnowledgeWare hereby irrevocably waives any bonds, surety and security relating
thereto required by any statute, court rule or otherwise as an incident to such
possession and any demand for possession of the Collateral prior to the
commencement of any suit or action to recover possession thereof.

     7.5  Extraordinary Cure Rights.  Notwithstanding any other provision hereof
          -------------------------                                             
or of any Other Agreement or of any law to the contrary, Sterling shall not
exercise any right or remedy (including without limitation any of the rights and
remedies enumerated in this section 7 or in section 3.7 hereof) against or with
respect to the Copyrights, Trademarks, Patents, its trade secrets or any other
intellectual property of KnowledgeWare until an Event of Default hereunder shall
exist and remain uncured for a period of 90 days after written notice of
Sterling to KnowledgeWare of a Default; provided however, such Extraordinary
Cure Rights shall not affect Sterling's rights, inter alia, in the Event of
                                                ----------                 
Default, to terminate the Line of Credit, accelerate the obligations and pursue
its rights and remedies to recover against any other Collateral hereunder.

     8.  MISCELLANEOUS


     8.1  Termination.  This Agreement shall be effective until the first
          -----------                                                    
anniversary of the Closing Date, that is, August 31, 1995.  The Line of Credit
provided under this Agreement shall automatically renew itself from year to year
thereafter unless terminated as hereinafter provided.  This Agreement may be
terminated by either party effective upon the anniversary of the Closing Date
(the "Effective Date of Termination") by giving written notice of such
termination at least

                                     - 30 -
<PAGE>
 
ninety (90) days prior to such anniversary date by registered mail or certified
mail addressed to the other party at the address provided for in this Agreement.
KnowledgeWare shall not be relieved from any Obligations to Sterling until such
time as all of the Obligations of KnowledgeWare shall have been indefeasibly
paid in full.  Upon the termination of this Agreement, all of KnowledgeWare's
Obligations incurred under this Agreement, including all outstanding principal
and accrued and unpaid interest under the Line of Credit Note shall be
immediately due and payable in their entirety, even if they are not yet due
under their terms, on the Effective Date of Termination.  Sterling's rights
under this Agreement and Sterling's security interest in the Collateral shall
continue after termination of this Agreement until all of KnowledgeWare's
Obligations to Sterling are indefeasibly paid in full.  The covenants,
warranties and representations of this Agreement shall survive termination of
the Agreement.  Notwithstanding any other provision hereof to the contrary,
KnowledgeWare may, upon written notice, terminate this Agreement at any time by
payment in full of all Obligations to Sterling without any prepayment penalty or
premium.  Immediately upon such payment in full of the Obligations, Sterling
shall release and terminate all security interest created or existing hereunder
or pursuant hereto.

     8.2  Collection.  KnowledgeWare agrees that checks and other instruments
          ----------                                                         
delivered to Sterling on account of KnowledgeWare's Obligations shall constitute
conditional payment until such items are actually paid to Sterling.
KnowledgeWare waives the right to direct the application of any and all payments
hereafter received by Sterling on account of KnowledgeWare's Obligations.
KnowledgeWare agrees that Sterling shall have the continuing exclusive right to
apply and reapply any such payments in such manner as Sterling may deem
advisable notwithstanding any entry by Sterling upon any of its books and
records.

     8.3  Demand, Etc.  KnowledgeWare waives to the extent permitted by law:
          ------------                                                      

          (a)  demand, protest and all notices of protest, default or dishonor;

          (b)  all notices of payment and non-payment;

          (c)  all notices required by law; and

          (d)  except as otherwise specifically provided for in this Agreement,
               all notices of default, non-payment at maturity, release,
               compromise, settlement, extension or renewal of any or all
               commercial paper, accounts, contract rights, documents,
               instruments, chattel paper and guaranty as at any time held by
               Sterling on which KnowledgeWare may, in any way, be liable and
               KnowledgeWare hereby ratifies and confirms whatever Sterling may
               do in that regard.

     8.4  Additional Obligations.  Sterling, without waiving or releasing any
          ----------------------                                             
Obligation or Default of KnowledgeWare, may perform any Obligations of
KnowledgeWare that KnowledgeWare shall fail to perform.  Sterling may, at any
time or times hereafter, but shall be under no obligation so to do, pay, acquire
or accept any assignment of any security interest, lien, encumbrance or claim
against the Collateral asserted by any person.  All sums paid by

                                     - 31 -
<PAGE>
 
Sterling in performing in satisfaction or on account of the foregoing and any
expenses, including reasonable attorney's fees actually incurred, court costs,
and other charges relating thereto, shall be a part of the Obligations, payable
on demand and secured by the Collateral.

     8.5  Indemnification.  KnowledgeWare hereby agrees to indemnify and hold
          ---------------                                                    
harmless Sterling against all loss or liability relating, directly or
indirectly, to any of the activities of the KnowledgeWare or its predecessors in
interest, to the execution, delivery or performance of this Agreement or the
Other Agreements or the consummation of the transactions contemplated hereby or
thereby or to any of the Collateral.  Notwithstanding the foregoing,
KnowledgeWare shall not be obligated to indemnify Sterling for any loss or
liability which is the direct result of Sterling's gross negligence or willful
misconduct.  The indemnity provided herein shall survive this Agreement.

     8.6  Alterations/Waiver.  In the event that Sterling at any time or from
          ------------------                                                 
time to time dispenses with any one or more of the Obligations specified in this
Agreement or any of the Other Agreements, such dispensation may be revoked by
Sterling at any time and shall not be deemed to constitute a waiver of any such
Obligation subsequent thereto, Sterling's failure at any time or times to
require strict performance by KnowledgeWare of any Obligations shall not waive,
affect or diminish any right of Sterling thereafter to demand strict compliance
and performance.  Any waiver by Sterling of any Default by KnowledgeWare under
this Agreement or any of the Other Agreements shall not waive or affect any
other Default by KnowledgeWare under this Agreement or any of the Other
Agreements, whether such Default is prior or subsequent to such other Default
and whether of the same or a different type.  None of the Obligations of
KnowledgeWare contained in this Agreement or the Other Agreements and no Default
by KnowledgeWare shall be deemed waived by Sterling unless such waiver is in
writing signed by an authorized representative of Sterling and delivered to
KnowledgeWare.

     8.7  Notices.  Except as otherwise expressly provided herein, any notice
          -------                                                            
required or desired to be served, given or delivered hereunder shall be in
writing, and shall be deemed to have been validly served, given or delivered (i)
three (3) Business Days after deposit in the United States mails, registered or
certified return receipt with proper postage prepaid, (ii) when sent after
receipt of confirmation or answer back if sent by telecopy, or other similar
facsimile transmission, (iii) one Business Day after being deposited with a
reputable overnight courier with all charges prepaid, or (iv) when delivered, if
hand-delivered by messenger, all of which shall be properly addressed to the
party to be notified and sent to the address or number indicated in Attachment B
or to such other address or number as each party designates to the other in the
manner herein prescribed.

     8.8  Severability.  Whenever possible, each provision of this Agreement or
          ------------                                                         
any of the Other Agreements shall be interpreted in such a manner as to be
effective and valid under applicable law, but if any provision of this Agreement
or any of the Other Agreements shall be prohibited by or invalid under
applicable law, such provision shall be ineffective only to the extent of such
prohibition or invalidity, without invalidating the remainder of such provisions
or the remaining provisions of this Agreement.

                                     - 32 -
<PAGE>
 
     8.9  One Loan.  All loans and advances heretofore, now or hereafter made by
          --------                                                              
Sterling to KnowledgeWare under this Agreement or the Other Agreements shall
constitute one loan secured by Sterling's security interests in the Collateral
and by all other security interests, liens and encumbrances previously,
presently or in the future granted by KnowledgeWare to Sterling or any assignor
of Sterling.

     8.10 Additional Collateral.  All monies, reserves and proceeds received or
          ---------------------                                                
collected by Sterling with respect to Accounts and other property of
KnowledgeWare in possession of Sterling at any time or times hereafter are
hereby pledged by KnowledgeWare to Sterling as security for the payment of
KnowledgeWare's Obligations and may be held by Sterling (without interest to
KnowledgeWare) until KnowledgeWare's obligations are paid in full or applied by
Sterling on account of KnowledgeWare's Obligations.  Sterling may release to
KnowledgeWare such portions of such monies, reserves and proceeds as Sterling
may from time to time determine, in its sole discretion.

     8.11 Offsets.  KnowledgeWare hereby waives any right of set-off it may have
          -------                                                               
against Sterling.

     8.12 Limitation of Liability.  Sterling shall not have any liability with
          -----------------------                                             
respect to any special, indirect or consequential damages suffered by
KnowledgeWare in connection with this Agreement, any Other Agreements or any
claims in any manner related thereto.

     8.13 Time.  Time shall be of the essence hereof.
          ----                                       

     8.14 Entire Agreement.  THIS AGREEMENT, TOGETHER WITH THE OTHER AGREEMENTS
          ----------------                                                     
AND ANY OTHER DOCUMENTS TO BE DELIVERED PURSUANT HERETO AND THERETO, CONSTITUTES
THE ENTIRE AGREEMENT BETWEEN THE KNOWLEDGEWARE AND STERLING PERTAINING TO THE
SUBJECT MATTER HEREOF AND SUPERSEDES ALL PRIOR AGREEMENTS, UNDERSTANDINGS,
NEGOTIATIONS AND DISCUSSIONS, WHETHER ORAL OR WRITTEN, WITH RESPECT TO THE
SUBJECT MATTER HEREOF.

     8.15 Section Titles.  The Section titles used in this Agreement and the
          --------------                                                    
Other Agreements are for convenience only and do not define or limit the
contents of any Section.

     8.16 Binding Effect.  This Agreement and the Other Agreements shall be
          --------------                                                   
binding upon and inure to the benefit of Sterling and KnowledgeWare and their
respective successors and assigns, but KnowledgeWare shall have no right to
assign this Agreement or any of the Other Agreements without the prior written
consent of Sterling.

     8.17 Governing Law.  This Agreement and the Other Agreements and all
          -------------                                                  
transactions pursuant thereto shall be governed and controlled as to
interpretation, enforcement, validity, construction, effect and in all other
respects (including but not limited to, the legality of the interest charged to
KnowledgeWare pursuant thereto) by the laws, statutes and decisions of the State
of Georgia.  KnowledgeWare, in order to induce Sterling to accept this Agreement
and the Other Agreements, agrees that all actions or proceedings arising
directly or indirectly in

                                     - 33 -
<PAGE>
 
connection with this Agreement or the Other Agreements may be litigated, at
Sterling's sole discretion and election, in courts having situs within the state
where Sterling's place of business is located.  KnowledgeWare hereby consents
and submits to the Jurisdiction of any local, state or federal court located
within such state, KnowledgeWare hereby waives any right it may have to transfer
or change the venue of any litigation brought against it by Sterling in
accordance with this Section.

     8.18 Usury Savings Clause.  It is the intent of Sterling and KnowledgeWare
          --------------------                                                 
and all other parties to this Agreement and other documents to conform to and
contract in strict compliance with applicable usury law from time to time in
effect.  All agreements between Sterling or any other holder hereof and
KnowledgeWare (or any other party liable with respect to any indebtedness under
this Agreement and Other Documents) are hereby limited by the provisions of this
Section, which shall override and control all such agreements, whether now
existing or hereafter arising and whether written or oral.  In no way, nor in
any event or contingency (including but not limited to prepayment, default,
demand for payment, or acceleration of the maturity of any obligation), shall
the interest taken, reserved, contracted for, charged or received under this
Agreement or otherwise, exceed the maximum nonusurious amount permissible under
applicable law.  If, from any possible construction of any document, interest
would otherwise be payable in excess of the maximum nonusurious amount, any such
construction shall be subject to the provisions of this Section and such
document shall be automatically reformed and the interest payable shall be
automatically reduced to the maximum nonusurious amount permitted under
applicable law, without the necessity of execution of any amendment or new
document.  If the holder hereof shall ever receive anything of value which is
characterized as interest under applicable law and which would apart from this
provision be in excess of the maximum lawful amount, an amount equal to the
amount which would have been excessive interest shall, without penalty, be
applied to the reduction of the principal amount owing on the indebtedness
evidenced hereby in the inverse order of its maturity and not to the payment of
interest, or refunded to KnowledgeWare or the other payor thereof if and to the
extent such amount which would have been excessive exceeds such unpaid
principal.  The right to accelerate maturity of this Agreement or any other
indebtedness does not include the right to accelerate any interest which has not
otherwise accrued on the date of such acceleration, and the holder hereof does
not intend to charge or receive any unearned interest in the event of
acceleration.  All interest paid or agreed to be paid to the holder hereof
shall, to the extent permitted by applicable law, be amortized, prorated,
allocated and spread throughout the full stated term (including any renewal or
extension) of such indebtedness so that the amount of interest on account of
such indebtedness does not exceed the maximum nonusurious amount permitted by
applicable law.  As used in this Section, the term "applicable law" shall mean
the laws of the State of Georgia or the federal laws of the United States,
whichever laws allow the greater interest, as such laws now exist or may be
changed or amended or come into effect in the future.

     KNOWLEDGEWARE AND STERLING, BY ACCEPTING THIS AGREEMENT, EACH AGREE AND
STIPULATE THAT THE ONLY CHARGE IMPOSED UPON KNOWLEDGEWARE FOR THE USE OF MONEY
IN CONNECTION WITH THIS AGREEMENT IS AND SHALL BE THE INTEREST DESCRIBED IN
SECTION 2.3 OF THIS AGREEMENT, AND FURTHER AGREE AND STIPULATE THAT ALL OTHER
CHARGES

                                     - 34 -
<PAGE>
 
IMPOSED BY STERLING ON KNOWLEDGEWARE IN CONNECTION WITH THIS AGREEMENT AND THE
LOAN EVIDENCED HEREBY, INCLUDING WITHOUT LIMITATION, ALL DEFAULT CHARGES, LATE
CHARGES AND ATTORNEYS' FEES, ARE CHARGES MADE TO COMPENSATE STERLING FOR
UNDERWRITING OR ADMINISTRATIVE SERVICES AND COSTS OR LOSSES PERFORMED OR
INCURRED, AND TO BE PERFORMED OR INCURRED, BY STERLING IN CONNECTION WITH THIS
AGREEMENT AND SHALL UNDER NO CIRCUMSTANCES BE DEEMED TO BE CHARGES FOR THE USE
OF MONEY PURSUANT TO OFFICIAL CODE OF GEORGIA ANNOTATED SECTION 7-4-2 OR SECTION
7-4-18.  ALL CHARGES OTHER THAN CHARGES FOR THE USE OF MONEY SHALL BE FULLY
EARNED AND NON-REFUNDABLE WHEN DUE.


KNOWLEDGEWARE AND STERLING HEREBY IRREVOCABLY WAIVE THEIR RIGHT TO TRIAL BY JURY
WITH RESPECT TO ANY ACTION OR PROCEEDING IN WHICH STERLING AND KNOWLEDGEWARE ARE
PARTIES.

IN WITNESS WHEREOF, the duly authorized representatives of KnowledgeWare have
executed and delivered this Agreement as of the date set forth below.

Date:  August 31, 1994

KNOWLEDGEWARE, INC.


By: /s/ Richard M. Haddrill
   -------------------------------------
Printed Name:  Richard M. Haddrill
Title:  Executive Vice President


ATTEST: /s/ Rick W. Gossett
       ---------------------------------
            (Asst. Secretary)


ACCEPTED this 31st day of August, 1994, at Sterling's place of business
specified at the beginning of this Agreement.

                              STERLING SOFTWARE, INC.


                              By: /s/ Vicki L. Hill
                                 ----------------------------------
                              Printed Name:  Vicki L. Hill
                              Title: Vice President, Treasurer
eileens/011074.1/S

                                     - 35 -
<PAGE>
 
              ATTACHMENT A TO AMENDED AND RESTATED REVOLVING LOAN
                             AND SECURITY AGREEMENT

                         EXECUTED AS OF AUGUST 31, 1994

KnowledgeWare'S NAME: KnowledgeWare, Inc., a Georgia corporation

1.   A/R Revolver Credit Line Fees, Rates and Repayment Terms:

     (a) Borrowing Base Valuation Percentage: 168%;

     (b) Other Charges: $1,500.00 per month;

     (c) Revolver Financing Charge: Prime Rate plus 1.25%;

     (d) Delinquency Fee Rate: Prime Rate plus 6.50%.

2.   Documentation Requirements

     (a)  Listing of all creditors providing accounts receivable financing to
          KnowledgeWare;

     (b)  Business Plan that includes at a minimum 1) monthly sales projections
          for a minimum of 12 months 2) Pro Forma Financial Statement* including
          balance sheet and cash flow statements for the next 2 fiscal year
          ends, and 3) rationale for extraordinary increase or decrease in
          sales, margins or profit.

*Financial Statements must include consolidated and consolidating statements.

3.   Financial Covenants:

3.1. Definitions: The following terms shall have the following respective
meanings in this Agreement.  All amounts shall be determined in accordance with
generally accepted accounting principles (GAAP).

     Current shall mean within the on-going twelve month period.

     Current Assets shall mean assets that are cash or expected to become cash
     within the on-going twelve months.

     Current Liabilities shall mean payment obligations resulting from past or
     current transactions that require settlement within the on-going twelve
     month period.  Current Ratio shall mean Current Assets divided by Current
     Liabilities.

     Long Term shall mean beyond the on-going twelve month period.

                                     - 1 -
<PAGE>
 
     Long Term Assets shall mean assets that take longer than a year to be
     converted to cash.  They are divided into four categories: tangible assets,
     investments, intangibles and other.

     Long Term Debt shall mean payment obligations of indebtedness which mature
     more than twelve months from the date of determination, or mature within
     twelve months from such date but are renewable or extendible at the option
     of the debtor to a date more than twelve months from the date of
     determination.

     Net Profit after Tax shall mean Revenue plus all other income, minus all
     costs, including applicable taxes.

     Net Operating Income shall mean Net Profit after Tax calculated without
     deduction for taxes and interest and after eliminating therefrom all
     extraordinary items of gain or loss.

     Revenue shall mean the monetary expression of the aggregate of products or
     services transferred by an enterprise to its KnowledgeWares for which said
     KnowledgeWares have paid or are obligated to pay, plus other income as
     allowed.

     Subordinated Debt shall mean KnowledgeWare's indebtedness to creditors
     other than Sterling, KnowledgeWare's payment of which has been subordinated
     to Sterling by said other creditors in a written and executed agreement
     between Sterling and said other creditors.

     Total Assets shall mean the total of Current Assets and Long Term Assets.

     Total Liabilities shall mean the Current Liabilities and Long Term Debt
     less Subordinated Debt, resulting from past or current transactions, that
     require settlement in the future.  Total Net Worth (the amount of owner's
     or stockholder's ownership in an enterprise) is equal to Total Assets minus
     Total Liabilities.

     Working Capital shall mean Current Assets minus Current Liabilities.

3.2. KnowledgeWare will be required to maintain the following financial ratios
and amounts:

     (a)  KnowledgeWare shall not (i) cause or permit Net Operating Income at
          the end of each of any two consecutive fiscal quarters (excluding the
          quarter ending September 30, 1994), with each quarter standing alone,
          to be less than $1.00, nor, (ii) as of the end of any fiscal quarter
          (excluding the quarter ending September 30, 1994), incur losses on Net
          Operating Income of more than $4,000,000 for such quarter and,
          cumulatively, all prior fiscal quarters (other than the quarter ending
          September 30, 1994) of the then current fiscal year.

     (b)  Ratio of Total Liabilities to Net Worth greater than zero and equal to
          or less than 2 at all times;

                                     - 2 -
<PAGE>
 
     (c)  KnowledgeWare's ratio of Current Assets to Current Liabilities at the
          end of any fiscal quarter shall not be less than .55.

4.  Non Financial Covenants:

     Monthly Collateral Report: KnowledgeWare shall, by the 15th day of each
     month or as otherwise agreed in writing, furnish Sterling with a Monthly
     Collateral Report, the requirements of which will be set forth by Sterling,
     and which will include, but not be limited to, a summarization of
     KnowledgeWare's Eligible Accounts.  In addition, KnowledgeWare shall submit
     the following reports which shall be included as attachments to the Monthly
     Collateral Report:

     (a)  Accounts Receivable Report - this report will disclose the amounts and
          aging of all of KnowledgeWare's Accounts;

     (b)  Accounts Payable Report - this report will disclose the amounts and
          aging of all of KnowledgeWare's accounts payable;

     (c)  Additional Collateral Report - this report will list any other
          collateral, if any, which may be required by Sterling.

     (d)  Monthly End-User Report - a report from the governmental entities
          referred to in Section 3.3(d) of this Agreement which (i) indicates
          the payment status of each Person's invoice payable by such
          governmental entity, which reflects sales or licenses by
          KnowledgeWare's account debtors to such governmental entities and (ii)
          cross-references the KnowledgeWare's invoice to its account debtor.

Upon Sterling's request, KnowledgeWare shall also submit to Sterling the name,
address and telephone number of each of its Account Debtor's primary contacts
for each Account listed on the Accounts Aging Report.

5.   Lockbox Information:     6.    Sterling Account Information:

KnowledgeWare, Inc.                 First National Bank of Boston
98 Annex 388                        Boston, Massachusetts
Atlanta, GA 30398-0388              Routing/ABA#: 011000390
                                    Acct#: 53086631

7.   Uniform Commercial Code:

     The Uniform commercial Code in effect from time to time in the State of
     Georgia will apply to this Agreement.

8.   Additional Collateral Requirements:

                                     - 3 -
<PAGE>
 
     KnowledgeWare will provide a ratification of Collateralized Guarantees from
     domestic subsidiaries and will use commercially reasonable efforts to
     provide Corporate Guarantees from foreign subsidiaries within sixty (60)
     days after Closing.

                                     - 4 -
<PAGE>
 
             ATTACHMENT B TO REVOLVING LOAN AND SECURITY AGREEMENT
                           EXECUTED ON JUNE 23, 1994


1.   The address of Sterling's place of business where Notices should be
delivered:

     8080 N. Central Expressway, Suite 1100
     Dallas, TX 75206
     Attention:  Vicki L. Hill, Vice President, Treasurer

2.   The exact corporate name of KnowledgeWare as it appears in its certificate
of incorporation is as follows:

     KnowledgeWare, Inc.

3.   The address of KnowledgeWare's principal place of business and chief
executive office:

     Street Address:  3340 Peachtree Road, NE
                      Suite 1100
                      Atlanta, GA 30326
     County:          Fulton

3(a) The address of each of KnowledgeWare's domestic subsidiaries' principal
place of business, chief executive office and locations of any and all
Collateral of such subsidiary:

     Name of Subsidiary:  IWK Corporation
     Street Address:      c/o Corporation Trust Company
                          Corporate Trust Center
                          1209 Orange Street
                          Wilmington, Delaware 19801
     County:              New Castle


     Name of Subsidiary:  KnowledgeWare Worldwide, Inc.
     Street Address:      3340 Peachtree Road, NE
                          Suite 1100
                          Atlanta, GA  30326
     County:              Fulton

     Name of Subsidiary:  Matesys Corp.
     Street Address:      3340 Peachtree Road, NE
                          Suite 1100
                          Atlanta, GA  30326
     County:              Fulton

     Name of Subsidiary:  KnowledgeWare International, Inc.

                                     - 5 -
<PAGE>
 
     Street Address:      3340 Peachtree Road, NE
                          Suite 1100
                          Atlanta, GA 30326
     County:              Fulton

3(b) The address of each of KnowledgeWare's foreign subsidiaries' principal
place of business and chief executive office:

     KnowledgeWare, BVBA
     Avenue Mercel Thiry 204
     1200 Brussels, Belgium

     KnowledgeWare, SARL
     43-47 Avenue de la Grande Armee
     75016 Paris, France

     KnowledgeWare GmbH
     Theodor-Heuss-Strasse 11
     70174 Stuttgart, Germany

     KnowledgeWare, S.r.l.
     Via Ludovisi, 35
     c/o Ripa Residence
     00187 Rome, Italy

     KnowledgeWare BV
     Varrolaan 100
     3584 BW Utrecht, Netherlands
     P. O. Box 3101
     3502 GC Utrecht, Netherlands

     KnowledgeWare LDA
     Praca Nuno Rodrigues dos Santos, 7
     1600 Lisbon, Portugal

     KnowledgeWare AB
     Kammakargatan 7, 5th Floor
     P. 0. Box 3143
     10362 Stockholm, Sweden

     KnowledgeWare SA
     Pasco de la Castellana 93,4
     "Wingdings"
     28046 Madrid, Spain

                                     - 6 -
<PAGE>
 
     KnowledgeWare, UK Ltd.
     Centre Point Floor 31
     103 New Oxford St.
     London WCLA IRD UK

     KnowledgeWare Vertriebs GmbH
     Mariahilfer Str. 121 b
     1060 Vienna, Austria

     KnowledgeWare AG
     ATAG Informstik AG
     Neumettstrasse 7
     8953 Deitikon, Switzerland

     KnowledgeWare Pacific Pyt. Ltd.
     321 Kent St., Sydney NSW
     Australia 2000
     GPO Box 2646, Sydney NSW 2001

     KnowledgeWare Far East
     1 Pedder Street Central Blvd., 11th Floor
     Central, Hong Kong

     KnowledgeWare Denmark A/S
     Slotsmarken 18
     DK-2970 Horsholm
     Denmark

     KnowledgeWare Pacific NZ Limited
     Level 16 BNZ Centre
     1 Willis Street
     Wellington, New Zealand

     Matesys Mathematic Systems, S.A.
     KnowledgeWare, SARL
     43-47 Avenue de la Grande Armee
     75016 Paris, France

4.   The address of KnowledgeWare's place of business where Notices should be
delivered:

     KnowledgeWare, Inc.
     3340 Peachtree Road, N.E.
     Suite 1100
     Atlanta, Georgia 30326
     Attention: Treasurer

                                     - 7 -
<PAGE>
 
     with a copy to:

     Hicks, Maloof & Campbell
     285 Peachtree Center Avenue, N.E.
     Marquis Two Tower, Suite 2200
     Atlanta, Georgia 30303
     Attention:  Charles E. Wilson, III

5.   Name of Guarantor and type of guaranty executed or to be executed:

IWK Corporation                                  Collateralized Guaranty
KnowledgeWare Worldwide, Inc.                    Collateralized Guaranty
Matesys Corp.                                    Collateralized Guaranty
KnowledgeWare International, Inc.                Collateralized Guaranty
KnowledgeWare, BVBA                              Corporate Guaranty
KnowledgeWare, SARL                              Corporate Guaranty
KnowledgeWare GmbH                               Corporate Guaranty
KnowledgeWare, S.r.l.                            Corporate Guaranty
KnowledgeWare BV                                 Corporate Guaranty
KnowledgeWare LDA                                Corporate Guaranty
KnowledgeWare AB                                 Corporate Guaranty
KnowledgeWare SA                                 Corporate Guaranty
KnowledgeWare, UK Ltd.                           Corporate Guaranty
KnowledgeWare Vertriebs GmbH                     Corporate Guaranty
KnowledgeWare AG                                 Corporate Guaranty
KnowledgeWare Pacific Pyt. Ltd.                  Corporate Guaranty
KnowledgeWare Far East                           Corporate Guaranty
KnowledgeWare Denmark A/S                        Corporate Guaranty
KnowledgeWare Pacific NZ Limited                 Corporate Guaranty
Matesys Mathematic Systems, S.A.                 Corporate Guaranty

6.  The following is a list of entities affiliated or related to KnowledgeWare
in any way and a description of such affiliation and/or relationship OR attach
corporate organization chart to Attachment B:

     a.   Wholly-owned domestic subsidiaries of KnowledgeWare, Inc.:

               KnowledgeWare Worldwide, Inc.
               KnowledgeWare International, Inc.
               IWK Corporation

     b.   Foreign Subsidiaries wholly owned by KnowledgeWare, Inc.:

               Matesys Mathematic Systems, S.A.

     c.   Wholly-owned domestic subsidiary of Matesys Mathematic Systems, S.A.:

                                     - 8 -
<PAGE>
 
               Matesys Corp.

     d.  Wholly-owned foreign subsidiary of IWK Corporation:

               KnowledgeWare Export, Inc.

     e.  Wholly-owned foreign subsidiaries of KnowledgeWare Worldwide, Inc.:

               KnowledgeWare, BVBA
               KnowledgeWare, SARL
               KnowledgeWare GmbH
               KnowledgeWare, S.r.l.
               KnowledgeWare BV
               KnowledgeWare LDA
               KnowledgeWare AB
               KnowledgeWare SA
               KnowledgeWare, UK Ltd.
               KnowledgeWare Vertriebs GmbH
               KnowledgeWare AG
               KnowledgeWare Pacific Pyt. Ltd.
               KnowledgeWare Far East
               KnowledgeWare Denmark A/S
               KnowledgeWare Pacific NZ Limited

7.   The following are all the locations in the United States where
KnowledgeWare maintains any Collateral:

 
(a)  Street Address:       3340 Peachtree Road, NE
                           Suite 1100
                           Atlanta, GA
     County:               Fulton
 
(b)  Street Address:       Concourse Corporate Center V
                           Five Concourse Parkway
                           Suite 1800
                           Atlanta, GA 30328-5350
     County:               Fulton
 
(c)  Street Address:       3353 Peachtree Road, NE
                           Suite M-10
                           Atlanta, GA 30326
     County:               Fulton
 
(d)  Street Address:       3375 Button Gwinnett Drive
                           Suite 400
                           Doraville, GA 30340-3148
 
                                     - 9 -
<PAGE>
 
     County:               Gwinnett
 
(e)  Street Address:       620 Newport Center Drive
                           Suite 1100
                           Newport Beach, CA 92660-8011
     County:               Orange
 
(f)  Street Address:       303 Twin Dolphin Drive
                           Suite 510
                           Redwood City, CA 94065-1417
     County:               San Mateo
 
(g)  Street Address:       5445 DTC Parkway
                           Panthouse 4
                           Englewood, CO 80111-3059
     County:               Arapahoe
 
(h)  Street Address:       O'Hare International Center II
                           10255 W. Higgins Road
                           Suite 700
                           Rosemont, IL 60018-5614
     County:               Cook
 
(i)  Street Address:       Ten Post Office Square
                           Suite 600, South
                           Boston, MA 02109
     County:               Essex
 
(j)  Street Address:       39555 Orchard Hill Place
                           Suite 450
                           Novi, MI 48375-5379
     County:               Wayne
 
(k)  Street Address:       Carlson Center
                           601 Lakeshore Pkwy.
                           10th Floor
                           Minnetonka, MN 55305-5207
     County:               Hennipin
 
(1)  Street Address:       12400 Olive Boulevard
                           Suite 555
                           St. Louis, MO 63141-5439
     County:               St. Louis
 
(m)  Street Address:       89 Headquarters Plaza
                           North Tower, 14th Floor
 
                                    - 10 -
<PAGE>
 
                           Morristown, NJ 07960
     County:               Morris
 
(n)  Street Address:       Princeton Forrestal Village
                           116 Village Blvd.
                           Princeton, NJ 08540
     County:               Middlesex
 
(o)  Street Address:       666 Fifth Avenue, 37th Floor
                           New York, NY 10103-3798
     County:               New York
 
(p)  Street Address:       65 East State Street
                           Suite 1000
                           Columbus, OH 43215
     County:               Franklin
 
(q)  Street Address:       1001 SW Fifth Avenue
                           Suite 1100
                           Portland, OR 97204-1127
     County:               Multnosah
 
(r)  Street Address:       Centre Square, East Tower
                           1500 Market Street, 12th Floor
                           Philadelphia, PA 19102-2101
     County:               Philadelphia
 
(s)  Street Address:       One Galleria Tower
                           13355 Noel Road, Suite 500
                           Dallas, TX 77057-1990
     County:               Dallas
 
(t)  Street Address:       One Riverway, Suite 1700
                           Houston, TX 77056-1990
     County:               Harris
 
(u)  Street Address:       1650 Tyson Boulevard
                           Suite 800
                           McLean, VA 22102-3915
     County:               Fairfax
 
(v)  Street Address:       777 108th Avenue, NE
                           Bellevue, WA 98004-5118
     County:               King
 
(w)  Street Address:       200 West Lowe
 
                                    - 11 -
<PAGE>
 
                           Fairfield, IA 50551
     County:               Jefferson
 
8.   The following are all the places of business of KnowledgeWare in the 
United States not identified above:
 
                               
(a)  Street Address:    NONE
                    -----------------------------------------------------------
     County:
            -------------------------------------------------------------------
     City, State, Zip code:
                           ----------------------------------------------------
     Collateral Located Here 
                             ----------------- (Yes) ------------------- (No)
     If Yes, identify Collateral
                                -----------------------------------------------

(b)  Street Address:
                    -----------------------------------------------------------
     County:
            -------------------------------------------------------------------
     City, State, Zip code:
                           ----------------------------------------------------
     Collateral Located Here 
                             ----------------- (Yes) ------------------- (No)
     If Yes, identify Collateral
                                -----------------------------------------------

(c)  Street Address:
                    -----------------------------------------------------------
     County:
            -------------------------------------------------------------------
     City, State, Zip code:
                           ----------------------------------------------------
     Collateral Located Here 
                             ----------------- (Yes) ------------------- (No)
     If Yes, identify Collateral
                                -----------------------------------------------

(d)  Street Address:
                    -----------------------------------------------------------
     County:
            -------------------------------------------------------------------
     City, State, Zip code:
                           ----------------------------------------------------
     Collateral Located Here 
                             ----------------- (Yes) ------------------- (No)
     If Yes, identify Collateral
                                -----------------------------------------------
 
9.   For purposes of this Agreement Permitted Liens and Permitted Prior Liens
shall mean:

     (a)  The rights of Bank, if any, under the lockbox agreement approved by
          Sterling;

     (b)  (i) Liens for taxes not yet delinquent and (ii) attachment or judgment
          liens individually or in the aggregate not in excess of One Hundred
          Thousand Dollars ($100,000) (exclusive of (A) any amounts that are
          duly bonded to the satisfaction of Sterling or (B) any amount fully
          covered by insurance as to which the insurance company has
          acknowledged its obligation to pay such judgment in full;

     (c)  Liens of carriers, warehousemen, mechanics, laborers, and materialmen
          arising by operation of law or otherwise, not waived in connection
          herewith, for amounts that are not yet due and payable or being
          contested in good faith by appropriate proceedings promptly instituted
          and diligently conducted if an adequate reserve or other appropriate
          provisions shall have been made therefor as required to be

                                    - 12 -
<PAGE>
 
          in conformity with GAAP and an adverse determination in such
          proceedings could not have a Material Adverse Effect;

     (d)  Liens incurred in the ordinary course of business in connection with
          worker's compensation and unemployment insurance;

     (e)  Easements, rights-of-way, restrictions, and other similar encumbrances
          on the use of real property which do not interfere with the ordinary
          conduct of the business of such KnowledgeWare, or Liens incidental to
          the conduct of the business of such KnowledgeWare or to the ownership
          of its properties which were not incurred in connection with the
          Obligations and which do not in the aggregate materially detract from
          the value of such properties or materially impair their use in the
          operation of the business of KnowledgeWare;

     (f)  Purchase money security interests granted by KnowledgeWare on
          equipment purchases or identifiable cash proceeds from the sale of
          property subject to such purchase money security interests;

     (g)  The rights of any Person to any intellectual property owned by such
          Person and licensed to KnowledgeWare;

     (h)  Liens of any Person in property which is or becomes fixtures.

                                    - 13 -

<PAGE>
 
                                                                   EXHIBIT 10.69

                              KNOWLEDGEWARE, INC.

                               WARRANT AGREEMENT


     This Warrant Agreement (the "Agreement"), dated as of August 31, 1994, is
entered into by and between KNOWLEDGEWARE, INC., a Georgia corporation (the
"Corporation"), and STERLING SOFTWARE, INC., a Delaware corporation (together
with its permitted assigns, the "Holder").

                             W I T N E S S E T H :

     WHEREAS, the Corporation desires that Holder purchase and assume (the
"Assumption") the Corporation's secured revolving line of credit and term loan
facility from IBM Credit Corporation ("IBM"), including without limitation, the
Revolving Loan and Security Agreement by and between the Corporation and IBM
dated June 23, 1994 and all promissory notes, guarantees and intellectual
property security agreements relating thereto (as amended and modified through
the date hereof, such documents are collectively referred to herein as the "Loan
Agreements"); and

     WHEREAS, Holder desires to purchase and assume the Loan Agreements; and

     WHEREAS, the Corporation and Holder desire to amend (the "Amendments")
certain of the Loan Agreements; and

     WHEREAS, in consideration for the Assumption and the Amendments, the
Corporation desires to issue warrants to purchase Common Stock of the
Corporation to Holder on the terms and conditions set forth herein;

     NOW, THEREFORE, in consideration of the mutual representations, warranties
and covenants herein contained, and on the terms and subject to the conditions
herein set forth, the parties hereto hereby agree as follows:
 
Section 1.  Definitions.
- ---------   ----------- 

     Section 1.01.  Definitions.  As used in this Agreement, the following terms
     ------------   -----------                                                 
shall have the meanings set forth below:

     (a) "Act" shall mean the Securities Act of 1933, as amended.

     (b) "Additional Stock" shall mean all shares (including treasury shares) of
Common Stock, or securities convertible, exercisable or exchangeable into Common
Stock, issued by the Corporation after the date of this Agreement, other than
shares of Common Stock issued or
<PAGE>
 
issuable with respect to options, warrants or other convertible securities
outstanding on the date hereof.

     (c) "Additional Warrants" shall have the meaning set forth in Section 2.02.

     (d) "Assumed Credit Facility" shall mean the Loan Agreements, including the
Amendments.

     (e) "Business Day" shall mean a day other than a Saturday, Sunday or legal
holiday in the State of Georgia.

     (f) "Common Stock" shall mean the common stock, without par value, of the
Corporation.

     (g) "Exercise Notice" shall have the meaning set forth in Section 2.02.

     (h) "Exercise Price" shall have the meaning set forth in Section 2.02.

     (i) "Expiration Date" shall have the meaning set forth in Section 2.02.

     (j) "Funding Date" shall mean the date of the Assumption.

     (k) "Initial Warrants" shall have the meaning set forth in Section 2.02.

     (l) "Market Value" shall mean, if the Common Stock is traded on a national
securities exchange, its last sale price on the preceding Business Day as
officially reported or, if there were no sales on that day, the last sale price
on the next preceding Business Day on which there was a sale on such exchange
or, if the principal market for the Common Stock is the over-the-counter market,
and the Common Stock is quoted through the National Association of Securities
Dealers Automated Quotations System ("NASDAQ"), the last sale price reported on
NASDAQ on the preceding Business Day or, if the Common Stock is an issue for
which last sale prices are not reported on NASDAQ, the closing bid quotation on
such day, but, in each of the next preceding two cases, if the relevant NASDAQ
price or quotation did not exist on such day, then the price or quotation on the
next preceding Business Day in which there was such a price or quotation, but if
the Common Stock is not reported or quoted on NASDAQ, the highest bid quotation
as quoted in any of the Wall Street Journal, the National Quotation Bureau pink
sheets, the Salomon Brothers quotation sheets, quotation sheets of registered
marketmakers and, if necessary, dealers' telephone quotations.  If the Market
Value per share of Common Stock cannot be ascertained by any of the foregoing
methods, the Market Value per share of Common Stock shall be deemed to be the
greater of the net book value per share of Common Stock (including stock of the
Corporation of any other class which is not preferred as to dividends or assets
over any other class of stock of the Corporation which is not subject to
redemption), determined in accordance with generally accepted accounting
principles, or the fair value per share as determined in good faith by the
Corporation's Board of Directors.  If the determination pursuant to the
preceding sentence is objected to by the Holders of Warrants

                                       2
<PAGE>
 
entitled to purchase a majority of the Warrant Shares covered thereby, such
determination shall be made by an independent appraiser, at the Corporation's
expense, selected by the Board of Directors and not objected to by such Holders.

     (m) "Person" shall mean a corporation, an association, a trust, a
partnership, a joint venture, an organization, a business, an individual, a
government or political subdivision thereof or a governmental body.

     (n) "Registration Rights Agreement" shall mean that certain Registration
Rights Agreement, dated as of even date herewith by and between the Holder and
the Corporation, providing for the registration of the sale of the Warrant
Shares.

     (o) "Stock" shall mean all shares, options, interests, participations or
other equivalents (however designated) of or in the Corporation, whether voting
or nonvoting, including without limitation, common stock, warrants, preferred
stock, convertible debentures and all agreements, instruments and documents
convertible, in whole or in part, into any one or more of all of the foregoing.

     (p) "Warrants" shall mean, collectively, the Initial Warrants and the
Additional Warrants, if any.

     (q) "Warrant Certificates" shall have the meaning specified in Section
2.02.

     (r) "Warrant Shares" shall mean the shares of Common Stock issuable upon
exercise of the Warrants.


Section 2. Issuance and Exercise of Warrants.
- ---------  --------------------------------- 

       Section 2.01.  Authorization and Issue of Warrants.  The Corporation has
       ------------   -----------------------------------                      
authorized (a) the issue of the Warrants covering the purchase of shares of
Common Stock by the Holder pursuant to this Agreement, and (b) the issuance of
such number of shares of Common Stock as will permit the compliance by the
Corporation with its obligations to issue Common Stock pursuant to the Warrants.

       Section 2.02.  Description and Exercise of Warrants.  The Corporation
       ------------   ------------------------------------                  
hereby agrees to issue to the Holder (i) warrants to purchase from the
Corporation 1,053,750 shares of Common Stock (the "Initial Warrants")
(representing 70,250 shares for each $1,000,000 of principal and accrued
interest outstanding under the Assumed Credit Facility on the Funding Date (such
principal and interest outstanding on the Funding Date being referred to herein
as the "Original Funded Amount")) at an exercise price equal to $4.50 per share.
In addition, the Corporation hereby agrees to issue to the Holder warrants (the
"Additional Warrants") to purchase an additional 70,250 shares of Common Stock
for each $1,000,000 advanced by Holder under the Assumed Credit Facility after
the Funding Date in excess of the Original Funded Amount at an exercise price
equal to the Market Value of the Common Stock on such Business Day(s)

                                       3
<PAGE>
 
immediately preceding the date the amount in excess of the Original Funded
Amount exceeded $1,000,000 or increments of $1,000,000 in excess of the Original
Funded Amount.  The Warrants shall be represented by certificates (the "Warrant
Certificates") in the form of Exhibit 2.02 to this Agreement and shall be
                              ------------                               
subject to the terms set forth below.  Warrants shall be exercisable at any time
and from time to time before 5:00 p.m., Atlanta, Georgia time, on the fifth
anniversary of the date of their issuance (unless such day is not a Business
Day, in which case on the next succeeding Business Day) (the "Expiration Date"),
upon surrender of the applicable Warrant Certificate to the Corporation with the
subscription form attached thereto duly executed (the "Exercise Notice"),
together with (a) payment therefor by cashier's check or wire transfer, the sum
obtained by multiplying (i) the number of shares of Common Stock called for on
the face of the subscription form by (ii) a price equal to the exercise price
for the Common Stock reflected on the face of the Warrant Certificate (the
"Exercise Price") or (b) the cancellation by Holder of the amount equal to such
sum of principal balance outstanding under the Assumed Credit Facility.
Warrants may be exercised for less than the full number of shares of Common
Stock represented by any Warrant Certificate at the time called for hereby by
such a surrender, except that the number of shares receivable upon the exercise
of such Warrants as a whole, and the sum payable upon the exercise of such
Warrants as a whole, shall be proportionately reduced.  Upon such partial
exercise, the applicable Warrant Certificate shall be surrendered, and a new
Warrant Certificate of the same tenor and for the purchase of a number of such
shares not purchased upon such exercise shall be issued by the Corporation to
the Holder.  The number of Warrant Shares and the Exercise Price shall be
subject to adjustments as provided in Section 2.05 of this Agreement.

     Section 2.03.  Status as Shareholder.  The Warrants shall be deemed to have
     ------------   ---------------------                                       
been exercised immediately prior to the close of business on the date of their
surrender or exercise as provided above, and the person entitled to receive the
shares of Common Stock issuable upon such exercise shall be treated for all
purposes as the holder of such shares of record as of the close of business on
such date.  Within two (2) Business Days on or after such date, the Corporation
shall issue and deliver to the person or persons entitled to receive the same a
certificate or certificates for the number of full shares of Common Stock
issuable upon such exercise, together with cash, in lieu of any fraction of a
share, equal to such fraction of the Fair Market Value of one full share.

     Section 2.04.  Execution of Warrant Certificates.  The Warrant Certificates
     ------------   ---------------------------------                           
shall be executed manually on behalf of the Corporation by its Chairman of the
Board, President or any Vice President and by its Secretary or Assistant
Secretary.  In case any authorized officer of the Corporation who shall have
signed the Warrant Certificates shall cease to be such officer of the
Corporation either before or after delivery thereof by the Corporation to the
Holder, the signature of such person on such Warrant Certificates shall
nevertheless be valid, with the same force and effect as though the person who
signed such Warrant Certificates had not ceased to be such officer of the
Corporation.

     Section 2.05.  Adjustments.  If any of the following events shall occur at
     ------------   -----------                                                
any time or from time to time prior to the Expiration Date, the following
adjustments shall be made in the

                                       4
<PAGE>
 
Exercise Price and/or the number of shares then purchasable upon the exercise of
the Warrants, as appropriate:

     (a)  In case the Corporation shall at any time subdivide (by means of a
stock split or otherwise) its outstanding shares of Common Stock into a greater
number of shares, the Exercise Price in effect immediately prior to such
subdivision shall be proportionately reduced and the number of shares
purchasable under the Warrants shall be proportionately increased; and
conversely, in case the Common Stock of the Corporation shall be combined into a
smaller number of shares, the Exercise Price in effect immediately prior to such
combination shall be proportionately increased and the number of shares
purchasable under the Warrants shall be proportionately reduced.

     (b)  If the Corporation shall declare a dividend on its Common Stock
payable in Stock or other securities of the Corporation or of any other
corporation, or in cash or other property, to holders of record of Common Stock
as of a date prior to the date of exercise of the Warrants, the Holder shall,
without additional cost, be entitled to receive upon the exercise of the
Warrants, in addition to the Common Stock to which the Holder is otherwise
entitled upon such exercise, the number of shares of stock or other securities,
cash or property which the Holder would have been entitled to receive if the
Holder had been a holder of the number of shares of Common Stock which the
Holder actually receives upon exercise of the Warrants on such record date.

     (c)  In case the Company shall be reorganized or recapitalized by
reclassifying its outstanding Common Stock or recapitalized by changing its
outstanding Common Stock to stock with a different par value, then, as a
condition of such reorganization or recapitalization, as the case may be, lawful
and adequate provision shall be made whereby each Holder shall thereafter have
the right to purchase, upon the terms and conditions specified herein, in lieu
of the shares of Common Stock theretofore purchasable upon the exercise of the
Warrants, the kind and amount of shares of stock, other securities or assets
(including cash) receivable upon such reorganization or recapitalization by a
holder of the number of shares of Common Stock which the Holder might have
purchased immediately prior to such recapitalization.  If any consolidation or
merger of the Company with another corporation, or the sale of all or
substantially all of its assets to another corporation, shall be effected in
such a way that holders of Common Stock shall be entitled to receive stock,
securities or assets (including cash) with respect to or in exchange for Common
Stock, then, as a condition of such consolidation, merger or sale, lawful and
adequate provisions shall be made whereby the Holder shall thereafter have the
right to purchase and receive upon the basis and upon the terms and conditions
specified in this Agreement and in lieu of the shares of the Common Stock of the
Company immediately theretofore purchasable and receivable upon the exercise of
the rights set forth herein, such shares of stock, securities or assets
(including cash) as may be issued or payable with respect to or in exchange for
a number of outstanding shares of such Common Stock equal to the number of
shares of such stock immediately theretofore purchasable and receivable upon the
exercise of the rights set forth herein had such consolidation, merger or sale
not taken place, and in any such case, appropriate provisions shall be made with
respect to the rights and interests of the Holder to the end that the provisions
hereof (including without limitation provisions for

                                       5
<PAGE>
 
adjustments of the Exercise Price and of the number of shares purchasable and
receivable upon the exercise of the Warrants) shall thereafter be applicable, as
nearly as may be, in relation to any shares of stock, securities or assets
(including cash) thereafter deliverable upon the exercise hereof (including an
immediate adjustment, by reason of such consolidation or merger, of the Exercise
Price to the value for the Common Stock reflected by the terms of such
consolidation or merger if the value so reflected is less than the Exercise
Price in effect immediately prior to such consolidation or merger).  The Company
will not effect any such consolidation, merger or sale unless prior to the
consummation thereof the successor corporation (if other than the Company)
resulting from such consolidation or merger or the corporation purchasing such
assets shall assume by written instrument executed and mailed or delivered to
the registered holder of each Warrant at the last address of such Holder
appearing on the books of the Company, the obligation to deliver to such Holder
such shares of stock, securities or assets (including cash) as, in accordance
with the foregoing provisions, such Holder may be entitled to purchase.  If a
purchase, tender or exchange offer is made to and accepted by the holders of
more than 50% of the outstanding shares of Common Stock of the Company, the
Company shall not effect any consolidation, merger or sale with the Person
having made such offer or with any Affiliate of such Person, unless prior to the
consummation of such consolidation, merger or sale the Holder shall have been
given a reasonable opportunity to then elect to receive upon the exercise of
Warrants  either  the stock, securities or assets (including cash) then issuable
with respect to the Common Stock of the Company or the stock, securities or
assets (including cash), or the equivalent issued to previous holders of the
Common Stock in accordance with such offer.  The term "Person"  as used in this
Subsection 6(b) shall mean and include an individual, a partnership, a
corporation, a trust, a joint venture, an unincorporated organization and a
government or any department or agency thereof.  For the purposes of this
Subsection 6(b), an "Affiliate" of any Person shall mean any Person directly or
indirectly controlling, controlled by or under direct or indirect common control
with, such other Person.  A Person shall be deemed to control a corporation if
such Person possesses, directly or indirectly, the power to direct or cause the
direction of the management and policies of such corporation, whether through
the ownership of voting securities, by contract or otherwise.

     (d)  No fractional shares of Common Stock are to be issued upon the
exercise of the Warrants, but the Corporation shall pay a cash adjustment in
respect of any fraction of a share which would otherwise be issuable in an
amount equal to the same fraction of the Fair Market Value per share of Common
Stock on the day of exercise.

     (e)  The Exercise Price shall also be subject to adjustment from time to
time as follows:

           (i) (A)  If the Corporation shall issue any Additional Stock without
consideration or for a consideration per share less than the Market Value per
share on the Business Day immediately prior to the date of the issuance of such
Additional Stock, the Exercise Price in effect immediately prior to each such
issuance shall forthwith (except as otherwise provided in this Section 2.05) be
reduced (but not increased) to the per share consideration received for such
Additional Stock.

                                       6
<PAGE>
 
           (B)  If the Corporation shall issue options to purchase or rights to
subscribe for Additional Stock, the following provisions shall apply:

           (I) The aggregate maximum number of shares of Common Stock
deliverable upon exercise of such options to purchase or rights to subscribe for
Common Stock shall be deemed to have been issued at the time such options or
rights were issued and for a consideration equal to the consideration
(determined in the manner provided in paragraphs (e)(iii) and (e)(iv) of this
Section 2.05), if any, received by the Corporation upon the issuance of such
options or rights plus the minimum purchase price provided in such options or
rights for the Common Stock covered thereby;

           (II)  The aggregate number of shares of Common Stock deliverable upon
conversion of or in exchange for any such convertible or exchangeable securities
or upon the exercise of options to purchase or rights to subscribe for such
convertible or exchangeable securities and subsequent conversion or exchange
thereof shall be deemed to have been issued at the time such securities were
issued or such options or rights were issued and for a consideration equal to
the consideration, if any, received by the Corporation for any such securities
and related options or rights (excluding any cash received on account of accrued
interest or accrued dividends), plus the additional consideration, if any, to
the received by the Corporation upon the conversion or exchange of such
securities or the exercise of any related options or rights (the consideration
in each case to be determined in the manner provided in paragraphs (e)(iii) and
(e) (iv) of this Section 2.05).

           (III) In the event of any change in the number of shares of Common
Stock deliverable upon exercise of such options or rights or upon conversion of
or in exchange for such convertible or exchangeable securities, including, but
not limited to, a change resulting from the antidilution provision thereof, the
Exercise Price in effect at the time shall forthwith be readjusted to such
Exercise Price as would have been obtained, had the adjustment that was made
upon the issuance of such options, rights or securities not converted prior to
such change (or the options or rights related to such securities not converted
prior to such change) been made upon the basis of such change; and

           (IV) No further adjustment of the applicable Exercise Price shall be
made for the actual issuance of Common Stock upon the exercise of any such
options or rights or the conversion or exchange of such securities after the
adjustments have been made under this paragraph (e)(i)(B) of this Section 2.05.

     (ii)  No adjustment of the Exercise Price shall be made in an amount less
than one cent per share, provided that any adjustment that is not required to be
made by reason of this sentence shall be carried forward and taken into account
in any subsequent adjustment.

     (iii)  In the case of the issuance of Additional Stock for cash, the
consideration shall be deemed to be the amount of cash paid therefor before
deducting any reasonable discounts, commissions or other expenses allowed, paid
or incurred by the Corporation for any underwriting or otherwise in connection
with the issuance and sale thereof.

                                       7
<PAGE>
 
     (iv)  In the case of the issuance of Additional Stock for a consideration
in whole or in part other than cash, the consideration other than cash shall be
deemed to be the fair value thereof as determined in good faith by the Board.

     Section 2.06.  Notices of Certain Events.  (a)  In the event of (i) any
     ------------   -------------------------                               
setting by the Corporation of a record date with respect to the holders of any
class of securities of the Corporation for the purpose of determining which of
such holders are entitled to dividends or other distribution, or any right to
subscribe for, purchase or otherwise acquire any shares of Stock or any other
securities or property, or to receive any other right, or (ii) any capital
reorganization of the Corporation, or reclassification or recapitalization of
the Stock of the Corporation or any transfer of all or substantially all of the
assets of the Corporation to, or consolidation  or merger of the Corporation
with or into, any other entity or person, or (iii) any voluntary dissolution or
winding up of the Corporation, or (iv) any proposed issue or grant by the
Corporation of any shares of Stock or any other securities, or any right or
option to subscribe for, purchase or otherwise acquire any shares of Stock or
any other securities of the Corporation (other than the issue of Common Stock
pursuant to exercise of the Warrants or stock options and similar rights), then
and in each such event the Corporation will mail or cause to be mailed to the
holders of the Warrants at the time outstanding a notice specifying, as the case
may be, (A) the date on which any such record is to be set for the purpose of
such dividend, distribution or right, and stating the amount and character of
such dividend, distribution, or right; (B) the date as of which the holders of
record shall be entitled to vote on any reorganization, reclassification,
recapitalization, transfer, consolidation, merger, conveyance, dissolution,
liquidation, or winding-up; (C) the date on which any such reorganization,
reclassification, recapitalization, transfer, consolidation, merger, conveyance
dissolution, liquidation, or winding-up is to take place and the time, if any is
to be fixed, as of which the holders of record of Common Stock (or such other
Stock or securities receivable upon the exercise of the Warrants) shall be
entitled to exchange their shares of Common Stock (or such other Stock or
securities) for securities or other property deliverable upon such event; or (D)
the amount and character of any Stock or other securities, or rights or options
with respect thereto, proposed to be issued or granted, the consideration to be
received therefor and, in the case of rights or options, the exercise price
thereof, and the date of such proposed issue or grant and the persons or class
of persons to whom such proposed issue or grant will be offered or made.  Any
such notice shall be deposited in the United States mail, postage prepaid, at
least twenty (20) days prior to the date therein specified and the holders of
the Warrants may exercise their Warrants within the twenty (20) day period from
the date of mailing of such notice

     (b)  If there shall be any adjustment as provided in Section 2.05, or if
securities or property other than shares of Common Stock of the Corporation
shall become purchasable in lieu of shares of such Common Stock upon exercises
of the Warrants, the Corporation shall forthwith cause written notice thereof to
be sent by registered mail, postage prepaid, to the Holder at the address of the
Holder shown on the books of the Corporation, which notice shall be accompanied
by a certificate of the chief financial officer of the Corporation setting forth
in reasonable detail the basis for the Holder becoming entitled to purchase such
shares and the number of shares that may be purchased and the Exercise Price
thereof, or the facts requiring any such adjustment and the Exercise Price and
number of shares purchasable after such

                                       8
<PAGE>
 
adjustment, or the kind and amount of any such securities or property so
purchasable upon the exercise of the Warrants, as the case may be.  At the
request of Holder and upon surrender of the Warrants, the Corporation shall
reissue the Warrants in a form conforming to such adjustments.

     Section 2.07.  No Obligation to Exercise Warrants.  This Agreement does not
     ------------   ----------------------------------                          
impose any obligation on the Holder to exercise the Warrants granted hereunder.


Section 3.  Representations, Warranties and Certain Covenants of the
- ---------   --------------------------------------------------------
Corporation.

     The Corporation represents and warrants to the Holder that the following
are true and correct as of the date hereof and covenants with the Holder as
follows:

     Section 3.01.  Corporate Action; Authorization.  The execution, delivery,
     -------------  -------------------------------                           
and performance by the Corporation of this Agreement, the Warrant Certificates,
the Registration Rights Agreement and any other agreements to which the
Corporation is a party and the consummation of the transactions contemplated
hereby and thereby (including the issuance of the Warrant Shares) have been duly
authorized by all requisite action on the part of the Corporation and (a) do not
and will not violate or conflict with (i) the Articles of Incorporation or
Bylaws of the Corporation, or any amendments thereto, or (ii) any law, rule, or
regulation or any order, writ, injunction, or decree of any court, governmental
authority, or arbitrator, the effect of which will have a material adverse
effect on the Corporation, and (b) do not and will not conflict with, result in
a breach of, or constitute a default under, or result in the imposition of any
lien upon any of the assets or rights of the Corporation pursuant to the
provisions of any indenture, mortgage, deed of trust, security agreement,
franchise, permit, license, or other instrument or agreement by which the
Corporation or any of its respective properties is bound.  As used in this
Agreement, the term "material adverse effect" means, with respect to the
Corporation, a material adverse effect on the financial condition, properties,
business or results of operations of the Corporation and its subsidiaries taken
as a whole, or on the ability of the Corporation to perform its obligations
hereunder or to consummate the transactions contemplated hereby.  The shares of
Common Stock to be issued upon exercise of the Warrants have been duly and
validly authorized and reserved for issuance, and when issued in compliance with
the terms of this Agreement and the Warrants, will be validly issued, fully-paid
and nonassessable and free of any preemptive rights.  This Agreement, the
Warrant Certificates and the Registration Rights Agreement have been duly
executed and delivered by the Corporation and constitute or will constitute
legal, valid and binding obligations of the Corporation, enforceable against the
Corporation in accordance with their respective terms, except as may be limited
by applicable bankruptcy, insolvency or similar laws affecting creditors' rights
generally or the availability of equitable remedies.

     Section 3.02.  Existence; Good Standing; Corporate Authority; Compliance
     ------------   ---------------------------------------------------------
With Law.  The Corporation is a corporation duly incorporated, validly existing
- --------                                                                       
and in good standing under the laws of its jurisdiction of incorporation.  The
Corporation is duly licensed or qualified to do business as a foreign
corporation and is in good standing under the laws of any other state of

                                       9
<PAGE>
 
the United States in which the character of the properties owned or leased by it
therein or in which the transaction of its business makes such qualification
necessary, except where the failure to be so qualified would not have a material
adverse effect on the Corporation.  The Corporation has all requisite corporate
power and authority to own, operate and lease its properties and carry on its
business as now conducted.  The Corporation is not in default with respect to
any order of any court, governmental authority or arbitration board or tribunal
to which the Corporation is a party or is subject, and the Corporation is not in
violation of any laws, ordinances, governmental rules or regulations to which it
is subject, where such default or violation would have a material adverse effect
on the Corporation.  The Corporation has obtained all licenses, permits and
other authorizations and has taken all actions required by applicable law or
governmental regulation in connection with its business as now conducted where
the failure to obtain any such item or to take any such action would have a
material adverse effect on the Corporation.

     Section 3.03.  Reservation for Issuance.  The Corporation shall reserve
     ------------   ------------------------                                
such number of shares of Common Stock as will permit compliance by the
Corporation with its obligations to issue Common Stock pursuant to the Warrants
and will refrain from taking any action which would hinder the Corporation's
ability to perform its responsibilities under this Agreement.  Further, the
Corporation shall reserve such additional number of shares of authorized but
unissued shares of Common Stock for issuance from time to time as the number of
shares which the Warrants evidence the right to purchase increases as the result
of anti-dilution or other adjustments set forth in this Agreement.  All shares
of Common Stock which are issuable upon the exercise of the Warrants will, when
issued, be duly and validly issued, fully paid and nonassessable and free from
all taxes, liens and charges.   The Corporation will take all such actions as
may be necessary to assure that all such shares of Common Stock may be so issued
without violation of any applicable law or governmental regulations or any
requirements of any securities exchange upon which shares of Common Stock may be
listed (including, without limitation, using the Corporation's best efforts to
cooperate with and assist the Holders of the Warrants in connection with the
pursuit by the Holders of the Warrants of any and all applications, regulatory
filings and other actions necessary for the exercise of the Warrants and the
issuance of the Common Stock).

     Section 3.04.  Consents.   Neither the execution and delivery by the
     ------------   --------                                             
Corporation of this Agreement nor the offer or issuance of the Warrants and the
Warrant Shares is such as to require consent, approval or authorization of, or
filing, registration or qualification with, any governmental authority on the
part of the Corporation as a condition to the execution and delivery of this
Agreement, the Warrant Certificates, the Registration Rights Agreement and/or
the issuance of the Warrant Shares.

     Section 3.05  Exchange Act Requirements.  The Corporation has filed a
     ------------  -------------------------                              
registration statement in the form and containing such information as is
required under the provisions of Section 12(b) of the Securities and Exchange
Act of 1934, as amended, and the rules and regulations promulgated thereunder
(the "Exchange Act").  To the knowledge of the Corporation, there are no
sanctions, penalties or other disciplinary actions that are pending with respect
to the timeliness of that filing which would in any way materially and adversely
affect

                                      10
<PAGE>
 
the financial condition of the Corporation or its ability to perform any of the
transactions contemplated by this Agreement, the Warrant Certificates or the
Registration Rights Agreement.  So long as the Corporation remains a reporting
company under the Exchange Act, it will timely comply with all reporting and
other requirements to which it is subject under the Exchange Act.

Section 4.  Transferability of Warrants and Warrant Shares: Registration.
            ------------------------------------------------------------ 

     Section 4.01.  Investment Intent; Restricted Securities.  Holder represents
     ------------   ----------------------------------------                    
and warrants that Holder is acquiring the Warrants and shall be acquiring the
Warrant Shares solely for its own account and not with a view to or for resale
in connection with any distribution or public offering thereof within the
meaning of any applicable securities laws and regulations, unless such
distribution or offering is registered under the Act or any exemption from such
registration is available.  Holder realizes that the resale of the Warrants and
the Warrant Shares is restricted by federal and state securities laws and,
accordingly, the Warrants and the Warrant Shares must be held indefinitely
unless the resale is subsequently registered under the Act, or an exemption from
such registration is available for such resale.  Holder acknowledges and
understands that the Warrants and each of the Warrant Shares constitute
"restricted securities" as that term is defined in Securities and Exchange
Commission Rule 144.  Holder acknowledges and consents that the certificates for
the Warrant Shares will be, when issued, legended substantially as follows:

          THE SECURITIES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN
          REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR THE
          SECURITIES LAWS OF ANY STATE OR OTHER JURISDICTION.  SUCH SECURITIES
          MAY NOT BE TRANSFERRED EXCEPT PURSUANT TO AN EFFECTIVE REGISTRATION
          STATEMENT UNDER THE SECURITIES ACT OF 1933 COVERING SUCH SECURITIES,
          OR PURSUANT TO AN EXEMPTION THEREFROM, AND IN COMPLIANCE WITH OTHER
          APPLICABLE SECURITIES LAWS.

     Section 4.02.  Transferability of Warrants and Warrant Shares.  Subject to
     ------------   ----------------------------------------------             
the terms hereof, the Warrants and all rights hereunder are transferable, in
whole or in part, on the books of the Corporation maintained for such purpose at
its principal office referred to in Section 6.08 by the Holder in person or by
duly authorized attorney, upon surrender of the applicable Warrant Certificate
to the Company at its principal office, accompanied by (i) a duly executed form
of Warrant assignment in the form of Exhibit 4.02 hereto, and (ii) payment of
                                     ------------                            
any necessary transfer tax or other governmental charge imposed upon such
transfer; and provided, that the Holder agrees that prior to any transfer of any
              --------                                                          
Warrants, the Holder shall (i) give written notice to the Corporation of the
proposed transfer setting forth in reasonable detail the basis for the Holder's
determination that the transfer does not require a registration under federal
and applicable state securities laws, and (ii) if reasonably requested by the
Corporation under the circumstances, an opinion of counsel reasonably
satisfactory to the Corporation as to the non-necessity of such registration.
Upon any partial transfer the Corporation will issue and deliver

                                      11
<PAGE>
 
to such holder a new Warrant Certificate or Warrant Certificates with respect to
the shares of Common Stock not so transferred.  Each taker and holder of the
Warrant Certificate, by taking or holding the same, consents and agrees that the
Warrant Certificate when endorsed in blank shall be deemed negotiable and that
when the Warrant Certificate shall have been endorsed, the holder hereof may be
treated by the Corporation and all other persons dealing with the Warrants
underlying such Warrant Certificate as the absolute owner thereof for any
purpose and as the person entitled to exercise the rights represented thereby,
or to the transfer thereof on the books of the Corporation, any notice to the
contrary notwithstanding; but until such transfer on such books, the Corporation
may treat the registered holder thereof as the owner for all purposes.

     Warrant Certificates are exchangeable at such office for Warrant
Certificates for the same aggregate number of shares of Common Stock, each new
Warrant Certificate to represent the right to purchase such number of shares as
the holder hereof shall designate at the time of such exchange.

     Section 4.03.  Registration.  The Holder's rights to have the Corporation
     ------------   ------------                                              
undertake the registration of the Warrant Shares shall be governed by the
Registration Rights Agreement, executed simultaneously with this Agreement to be
entered into between Holder and the Corporation simultaneously upon the
execution of this Agreement and the delivery of the Initial Warrants.


Section 5.  Holder's Special Rights.
- ---------   ----------------------- 

     Section 5.01.  Payment of Taxes.  The Corporation shall pay all taxes and
     ------------   ----------------                                          
other governmental charges that may be imposed in respect of the issue or
delivery of the Warrant Shares excluding any income or similar tax imposed on
the Holder.

     Section 5.02.  Payment of Expenses.  Whether or not the Warrant Shares are
     ------------   -------------------                                        
sold, the Corporation will pay all costs and expenses incurred by the Holder (a)
printing the instruments evidencing the Warrant Shares, (b) relating to any
amendments, waivers or consents under this Agreement and (c) incident to the
enforcement by the Holder of, or the protection or preservation of any right or
remedy of the Holder under, this Agreement or the Warrant Certificates or any
other agreement furnished pursuant hereto or thereto or in connection herewith
or therewith.  The Corporation shall pay such costs and expenses from time to
time upon demand by the Holder against presentation, in each such case, of a
composite statement thereof.

     Section 5.03.  Lost, Stolen, Mutilated, or Destroyed Warrant Certificate.
     ------------   ---------------------------------------------------------  
If the Warrant Certificates shall become lost, stolen, mutilated, or destroyed,
the Corporation shall, on such reasonable terms as to indemnity or otherwise as
it may impose, including, without limitation, the delivery by the Holder to the
Corporation (at Holder's expense) of an affidavit of lost instrument and an
indemnity agreement, issue a new Warrant Certificate of like denomination,
tenor, and date as the Warrant so lost, stolen, mutilated or destroyed.  Holder
agrees to pay the reasonable expenses incurred by the Corporation in connection
with such reissuance.  Any such

                                      12
<PAGE>
 
new Warrant Certificate shall constitute an original contractual obligation of
the Corporation, whether or not the allegedly lost, stolen, mutilated, or
destroyed Warrant Certificate shall be at any time enforceable by anyone.

     Section 5.04.  NASDAQ/NMS Listing Application or Other Appropriate Action.
     ------------   ----------------------------------------------------------  
The Corporation shall use its best efforts to qualify the Warrant Shares for
quotation and trading through the NASDAQ/NMS or such other securities exchange
or quotation system that the Common Stock is traded on or quoted through.

     Section 5.05.  Further Instruments of Transfer.  Following the execution
     ------------   -------------------------------                          
hereof, at the request of Holder, the Corporation shall deliver any further
instruments of transfer and take all reasonable action as may be necessary or
appropriate to (i) vest in Holder good and marketable title to the Warrant
Shares and (ii) carry out more effectively the provisions of this Agreement and
to establish and protect the rights created in favor of the parties hereunder or
thereunder.


Section 6. Miscellaneous.
- ---------  ------------- 

     Section 6.01.  Amendment and Waiver.  Any term, covenant, agreement or
     ------------   --------------------                                   
condition in this Agreement may be amended, or compliance therewith be waived
(either generally or in a particular instance and either retroactively or
prospectively), by a written instrument or written instruments executed by the
Corporation and the Holders of Warrants exercisable for at least a majority of
the Warrant Shares then unissued.

     Section 6.02.  Parties In Interest; No Third Party Beneficiaries.  Except
     ------------   -------------------------------------------------         
as otherwise provided herein, the terms and conditions of this Agreement shall
inure to the benefit of and be binding upon the respective heirs, legal
representatives, successors and assigns of the parties hereto.  Neither this
Agreement nor any other agreement contemplated hereby shall be deemed to confer
upon any person not a party hereto or thereto any rights or remedies hereunder
or thereunder.

     Section 6.03.  Entire Agreement.  This Agreement and the agreements
     ------------   ----------------                                    
contemplated hereby constitute the entire agreement of the parties regarding the
subject matter hereof, and supersede all prior agreements and understandings,
both written and oral, among the parties, or any of them, with respect to the
subject matter hereof.

     Section 6.04.  Severability.  If any provision of this Agreement is held to
     ------------   ------------                                                
be illegal, invalid or unenforceable under present or future laws effective
during the term hereof, such provision shall be fully severable and this
Agreement shall be construed and enforced as if such illegal, invalid or
unenforceable provision never comprised a part hereof; and the remaining
provisions hereof shall remain in full force and effect and shall not be
affected by the illegal, invalid or unenforceable provision or by its severance
therefrom.  Furthermore, in lieu of such illegal, invalid or unenforceable
provision, there shall be added automatically as part of this Agreement a
provision as similar in its terms to such illegal, invalid or unenforceable
provision as may be possible and be legal, valid and enforceable.

                                      13
<PAGE>
 
     Section 6.05.  Survival of Covenants.  The covenants contained herein shall
     ------------   ---------------------                                       
survive the execution of this Agreement and the purchase of the Warrant Shares,
if any, and continue indefinitely  and all statements contained in any
certificate, exhibit or other instrument delivered by or on behalf of the
Corporation or Holder pursuant to this Agreement shall be deemed to have been
representations and warranties by the Corporation or Holder, as the case may be,
and, notwithstanding any provision in this Agreement to the contrary, shall
survive the execution of this Agreement and the purchase of the Warrant Shares,
if any, and continue indefinitely.

     Section 6.06.  Governing Law.  This Agreement and the rights and
     ------------   -------------                                    
obligations of the parties hereto shall be governed by and construed and
enforced in accordance with the substantive laws (but not the rules governing
conflicts of laws) of the State of Delaware.

     Section 6.07.  Captions.  The captions in this Agreement are for
     ------------   --------                                         
convenience of reference only and shall not limit or otherwise affect any of the
terms or provisions hereof.

     Section 6.08.  Notice.  Any notice or communication hereunder or in any
     ------------   ------                                                  
agreement entered into in connection with the transactions contemplated hereby
must be in writing and given by depositing the same in the United States mail,
addressed to the party to be notified, postage prepaid and registered or
certified with return receipt requested, or by delivering the same in person, by
overnight courier or by facsimile transmission.  Such notice shall be deemed
received on the date on which it is hand-delivered, delivered by overnight
courier or received by facsimile transmission or on the third business day
following the date on which it is so mailed.  For purposes of notice, the
addresses of the parties shall be:

        If to Holder:           Sterling Software, Inc.
                                8080 N. Central Expressway
                                Suite 1100
                                Dallas, Texas  75206
                                Attention:  Jeannette P. Meier, General Counsel
                                Fax Number:  (214) 750-0905
        
        with a copy to:         Jackson & Walker, L.L.P.
                                901 Main Street
                                Suite 6000
                                Dallas, Texas  75202
                                Attn:  Charles D. Maguire, Jr.
                                Fax Number: (214) 953-5822
        
        If to the Corporation:  KnowledgeWare, Inc.
                                3340 Peachtree Road, N.E.
                                Suite No. 1100
                                Atlanta, Georgia  30326
                                Attn:  Francis A. Tarkenton,
                                       Chairman of the Board
                                Fax Number:  (404) 364-0883


                                      14
<PAGE>
 
        with a copy to:         Hicks, Maloof & Campbell
                                Suite 2200, Marquis Two Tower
                                285 Peachtree Center Avenue, N.E.
                                Atlanta, Georgia  30303
                                Attention:  Maurice N. Maloof
                                Fax Number: (404) 420-7474

Any party may change its address for notice by written notice given to the other
parties in accordance with this Section.

     Section 6.09.  Counterparts.  This Agreement may be executed in multiple
     ------------   ------------                                             
counterparts, each of which shall be deemed an original, and all of which
together shall constitute one and the same instrument.


                                      15
<PAGE>
 
     IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of
the date first above written.

                                KNOWLEDGEWARE, INC.,
                                a Georgia corporation


                                By:/s/Francis A. Tarkenton
                                   ---------------------------------------------
                                   Francis A. Tarkenton,
                                   Chairman of the Board and
                                   Chief Executive Officer
 

                                STERLING SOFTWARE, INC.,
                                a Delaware corporation


                                By:/s/Sterling L. Williams
                                   ---------------------------------------------
                                  Sterling L. Williams,
                                  President

                                      16
<PAGE>
 
                                                                    EXHIBIT 2.02



THE SECURITIES REPRESENTED BY THIS WARRANT CERTIFICATE HAVE NOT BEEN REGISTERED
UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "ACT"), OR THE SECURITIES LAWS
OF ANY STATE OR OTHER JURISDICTION. SUCH SECURITIES MAY NOT BE OFFERED FOR SALE,
SOLD, PLEDGED OR OTHERWISE TRANSFERRED WITHOUT (1) REGISTRATION UNDER THE ACT
AND ANY APPLICABLE STATE SECURITIES LAWS OR (2) QUALIFICATION FOR AN EXEMPTION
FROM SUCH REGISTRATION REQUIREMENTS.


No. ________________________


                              KNOWLEDGEWARE, INC.
                   COMMON STOCK PURCHASE WARRANT CERTIFICATE

     THIS CERTIFIES that Sterling Software, Inc. or registered assigns (the
"Holder") is entitled to purchase from KnowledgeWare, Inc., a Georgia
corporation (the "Corporation"), at any time and from time to time on and after
_____________________, _______, but not later than 5:00 p.m., Atlanta, Georgia
time, on _______________, _______ (the "Expiration Date") up to
____________ shares of the Corporation's common stock, without par value (the
"Common Stock"), at the exercise price of $_____ (the "Exercise Price"), as set
forth in the Warrant Agreement (as hereinafter defined), upon surrender of this
Warrant Certificate, with the subscription form attached hereto (the "Exercise
Notice") duly executed, at the Corporation's principal office, and by paying in
full the Exercise Price, plus transfer taxes, if any.

     This Warrant Certificate is issued pursuant to a Warrant Agreement, dated
as of August ____, 1994 (the "Warrant Agreement"), between the Corporation and
Sterling, and all rights of the Holder are further governed by, and subject to
the terms and provisions of, the Warrant Agreement, to all of which terms and
provisions the Holder consents by acceptance hereof.  Copies of the Warrant
Agreement and any amendments thereto are available upon request to the
Corporation.  The Holder shall be entitled to the benefits, rights and
privileges provided under the Warrant Agreement.  All capitalized terms used
herein shall have the same meaning assigned to such terms in the Warrant
Agreement.

     Prior to expiration, subject to any applicable laws, rules or regulations
restricting transferability and to any restriction on transferability that may
appear in the Warrant Agreement, the Holder shall be entitled to transfer this
Warrant Certificate in whole or in part upon surrender of this Warrant
Certificate at the principal office of the Corporation, accompanied by a duly
executed form of warrant assignment in the form attached hereto (the "Warrant
Assignment Form").  Upon any such transfer, a new Warrant Certificate or
Certificates representing the same aggregate number of Warrants will be issued
in accordance with instructions in the Warrant Assignment Form.
<PAGE>
 
     Prior to expiration, subject to the foregoing and to the provisions of the
Warrant Agreement, the Holder shall be entitled to exchange this Warrant
Certificate, with or without other Warrant Certificates, for another Warrant
Certificate or Warrant Certificates for the same aggregate number of Warrants,
upon surrender of this Warrant Certificate at the principal office of the
Corporation.

     This Warrant Certificate shall not entitle the registered Holder to any of
the rights of a shareholder of the Corporation, including without limitation the
right to vote, to receive dividends and other distributions, or to attend or
receive any notice of meetings of shareholders or any other proceedings of the
Corporation unless specifically provided in the Warrant Agreement.

     IN WITNESS WHEREOF, the Corporation has caused this Warrant Certificate to
be duly executed.

                                    KNOWLEDGEWARE, INC.


                                    By:
                                       ---------------------------------
                                         Francis A. Tarkenton,
                                         Chairman of the Board and
                                         Chief Executive Officer


                                      -2-
<PAGE>
 
                              FORM OF SUBSCRIPTION

To KnowledgeWare, Inc.:

     The undersigned, the holder of the within Warrant, hereby irrevocably
elects to exercise the purchase right represented by such Warrant, and to
purchase _______ shares of Common Stock, no par value, of KnowledgeWare, Inc.
and herewith makes a payment of $______________ therefor, and requests that the
certificate or certificates for such Common Stock be issued in the name of and
delivered to the undersigned.


                                                --------------------------------
                                                           (Signature)


 

                                                --------------------------------

                                                --------------------------------
                                                             (Address)


Dated:_______________________________
    
<PAGE>
 
                               FORM OF ASSIGNMENT
                  (To be signed only upon transfer of Warrant)


     For value received, the undersigned hereby sells, assigns and transfers
unto ____________________________________ the right represented by the within
Warrant to purchase _______ shares of Common Stock, no par value, of
KnowledgeWare, Inc. to which the within Warrant relates, and appoints
____________________ Attorney to transfer such right on the books of
KnowledgeWare, Inc. with full power of substitution in the premises.

     The undersigned represents and warrants that the transfer of the within
Warrant is permitted by the terms of the Warrant Agreement pursuant to which the
within Warrant has been issued, and the transferee hereof, by acceptance of this
Assignment, represents and warrants that he is familiar with the terms of said
Warrant Agreement and agrees to be bound by the terms thereof with the same
force and effect as if a signatory thereto.


                                                --------------------------------
                                                           (Signature)


 

                                                --------------------------------

                                                --------------------------------
                                                             (Address)


Dated:_______________________________
 
<PAGE>
 
                                                                    EXHIBIT 4.02

                               FORM OF ASSIGNMENT
                  (To be signed only upon transfer of Warrant)


     For value received, the undersigned hereby sells, assigns and transfers
unto ____________________________________ the right represented by the within
Warrant to purchase _______ shares of Common Stock, no par value, of
KnowledgeWare, Inc. to which the within Warrant relates, and appoints
____________________ Attorney to transfer such right on the books of 
KnowledgeWare, Inc. with full power of substitution in the premises.

     The undersigned represents and warrants that the transfer of the within
Warrant is permitted by the terms of the Warrant Agreement pursuant to which the
within Warrant has been issued, and the transferee hereof, by acceptance of this
Assignment, represents and warrants that he is familiar with the terms of said
Warrant Agreement and agrees to be bound by the terms thereof with the same
force and effect as if a signatory thereto.



                                                --------------------------------
                                                           (Signature)


 

                                                --------------------------------

                                                --------------------------------
                                                             (Address)


Dated:_______________________________

<PAGE>
 
                                                                   EXHIBIT 10.70

                              KNOWLEDGEWARE, INC.

                         REGISTRATION RIGHTS AGREEMENT


     This Registration Rights Agreement (the "Agreement") is made and entered
into as of  August 31, 1994, by and among KNOWLEDGEWARE, INC., a Georgia
corporation (the "Company"), and STERLING SOFTWARE, INC., a Delaware corporation
("Sterling").

     This Agreement is made pursuant to the terms of that certain Warrant
Agreement dated as of even date herewith, by and among the Company and Sterling.
In order to induce Sterling to enter into the Warrant Agreement, the Company has
agreed to provide the registration rights on the terms set forth in this
Agreement for the benefit of the holders of Registrable Securities (as
hereinafter defined).

     The parties hereto agree as follows:

1.   Definitions.  The terms used herein shall have the following meanings:
     -----------                                                           

     (a) "Act" shall mean the Securities Act of 1933, as amended, and the rules
         -----                                                                 
and regulations of the Commission thereunder, all as the same shall be in effect
from time to time.

     (b) "Commission" shall mean the Securities and Exchange Commission or any
         ------------                                                         
other federal agency administering the Act.

     (c) "Common Stock" shall mean the common stock, without par value per
         --------------                                                   
share, of the Company.

     (d) "Exchange Act" shall mean the Securities Exchange Act of 1934, as
         --------------                                                   
amended, and the rules and regulations of the Commission thereunder, all as the
same shall be in effect from time to time.

     (e) "holder or holders of Registrable Securities" shall mean any holder of
         ---------------------------------------------                         
record on the books of the Corporation of Registrable Securities.

     (f) "Person" shall mean a corporation, an association, a trust, a
         --------                                                     
partnership, a joint venture, an organization, a business, an individual, a
government or political subdivision thereof or a governmental body.

     (g) "Register", "registered" or "registration" shall mean a registration
         ------------------------------------------                          
effected by preparing and filing a registration statement on any appropriate
form in compliance with the Act which form shall be available for the sale of
the Registrable Securities in accordance with the intended method of
distribution thereof, and the declaration or ordering of the effectiveness of
such registration statement by the Commission.
<PAGE>
 
     (h) "Registrable Securities" shall mean the Common Stock that may be issued
         ------------------------                                               
to Sterling or its transferees or assigns pursuant to the Warrant Agreement;
provided, however, as to any particular Registrable Securities, such securities
will cease to be Registrable Securities when (i) a registration statement
covering such securities has been declared effective, or (ii) they are eligible
to be sold pursuant to Rule 144(k) (or any successor provision) under the Act.

     (i) "Warrant Agreement" shall mean that certain Warrant Agreement, dated as
          -----------------                                                     
of even date herewith, by and between the Company and Sterling.

     (j) "Warrant" and "Warrants" shall have the meaning specified in the
          -------       --------                                         
Warrant Agreement.

2.   Demand Registration.
     ------------------- 

     (a) If at any time after the date of this Agreement, one or more of holders
of Registrable Securities holding in the aggregate at least a majority of the
Registrable Securities (for which purpose the Warrants shall be deemed to have
been exercised) shall notify the Company in writing that such holder or holders
intend to offer or cause to be offered for public sale all or any portion of
their Registrable Securities, the Company will notify all of the remaining
holders of Registrable Securities of its receipt of such notification from such
holder or holders.  Upon the written request of any such holder delivered to the
Company within 15 days after receipt from the Company of such notification, the
Company will use its reasonable best efforts to cause such of the Registrable
Securities as may be requested by any such holder (including the holder or
holders of Registrable Securities giving the initial notice of intent to
register hereunder) to be registered ("Demand Registration") under the Act in
accordance with the terms of this Section 2.  Notwithstanding the foregoing, the
Company shall not be required to effect, or to take any action to effect, a
registration requested pursuant to this Section 2 if the request for
registration has been received by the Company subsequent to the giving of
written notice by the Company, made in good faith, to the holders of Registrable
Securities to the effect that the Company is commencing to prepare a Company-
initiated registration statement (other than a registration statement on Form S-
4 or S-8 (or any successor form) or filed in connection with an exchange offer
or an offering of securities solely to the Company's stockholders).  The Company
may postpone the filing of any registration statement required hereunder for a
reasonable period of time, not to exceed 30 days, if the Company has been
advised by legal counsel that such filing would require the disclosure of a
material transaction or other factor and the Company determines reasonably and
in good faith that such disclosure would have a material adverse effect on the
Company.  In no event shall the Company be required to effect more than two
registrations pursuant to this Section 2; provided such registration statements
are declared effective and remain effective for at least six months.

     (b) In any such public offering of Registrable Securities effected pursuant
to Section 2(a) that is an underwritten public offering, the holders of a
majority in aggregate number of the Registrable Securities to be included in
such registration shall have the right to select the investment banker or
bankers and manager or managers to administer the offering; provided, however,
that if such investment banker or manager is not one with an established
national reputation as a valuer of equity securities it shall be subject to the
approval of the Company

                                       2
<PAGE>
 
which shall not be unreasonably withheld.  If the manager or managers deliver an
opinion to the holders of the Registrable Securities that the total amount of
securities which other persons or entities (by virtue of "piggy-back" or similar
registration rights) intend to include in such offering is sufficiently large to
materially and adversely affect the success of such offering, then the amount or
kind of securities to be offered for the accounts of such other persons or
entities and for the accounts of the holders of Registrable Securities shall be
reduced pro rata with respect to each holder to the extent necessary to reduce
the total amount of securities to be included in such offering to the amount
recommended by such manager or managers.


3.   Piggy-Back Registration.
     ----------------------- 

     If at any time the Company proposes to file a registration statement under
the Act with respect to an offering by the Company for its own account or for
the account of others of any class of security on a form of registration
statement appropriate for the registration of the Registrable Securities (other
than  a registration statement on Form S-4 or S-8 (or any successor form) or
filed in connection with an exchange offer or an offering of securities solely
to the Company's existing stockholders), then the Company shall in each case
give written notice of such proposed filing to the holders of the Registrable
Securities at least 30 days prior to the anticipated filing date, and such
notice shall offer such holders the opportunity to register such shares of
Registrable Securities as each such holder may request (a "Piggy-Back
Registration").  The Company shall use its best efforts to cause the managing
underwriter or underwriters of a proposed underwritten offering to permit the
holder(s) of Registrable Securities requested in writing within fifteen (15)
days after the notice given by the Company to be included in the registration
for such offering to include such securities in such offering on the same terms
and conditions as any similar securities of the Company included therein.
Notwithstanding the foregoing, if the managing underwriter or underwriters of
such offering delivers an opinion to the holders of Registrable Securities that
the total amount of securities which they or the Company or any other persons or
entities intend to include in such offering is sufficiently large to materially
and adversely affect the success of such offering, then the amount or kind of
securities to be offered for the accounts of holders of Registrable Securities
shall be reduced pro rata with respect to each holder to the extent necessary to
reduce the total amount of securities to be included in such offering to the
amount recommended by such managing underwriter or underwriters; provided,
                                                                 -------- 
however, that if securities are being offered for the account of other persons
- -------                                                                       
or entities as well as the Company, such reduction shall not represent a greater
fraction of the number of securities intended to be offered by holders of
Registrable Securities than the fraction of similar reductions imposed on such
other persons or entities with respect to the amount of securities they intend
to offer.  In the event that the contemplated registration does not involve an
underwritten public offering, the determination that the inclusion of such
Registration Securities would have an adverse affect on the marketability or the
price of the securities proposed to be offered by the Company shall be made by
the Company in its reasonable discretion.

                                       3
<PAGE>
 
4.   Registration Procedures.
     ----------------------- 

     Whenever any Registrable Securities are required to be registered pursuant
to Sections 2 or 3 of this Agreement, the Company will use its reasonable best
efforts to effect the registration of such Registrable Securities in accordance
with the intended method of disposition thereof as diligently as practicable,
and in connection therewith, the Company agrees that it shall also do the
following:

     (a) use its reasonable best efforts to diligently prepare for filing and
file with the Commission a registration statement which includes the Registrable
Securities and use its reasonable best efforts to cause such registration to
become effective; provided that before filing a registration statement or
prospectus or any amendments or supplements thereto, including documents
incorporated by reference, the Company will furnish to counsel to the holders of
the Registrable Securities covered by such registration statement and the
managing underwriter or underwriters, if any, draft copies of all such documents
proposed to be filed (other than exhibits, unless so requested) a reasonable
time prior thereto, which documents will be subject to the reasonable review of
such counsel and such holders and underwriters, and the Company will not file
any registration statement or amendment thereto or any prospectus or any
supplement thereto (including such documents incorporated by reference) to which
holders of a majority of the Registrable Securities covered by such registration
statement (except in the case of a Piggy-Back Registration) or the managing
underwriter or underwriters with respect to such securities, if any, shall
reasonably object, and will notify each holder of the Registrable Securities of
any stop order issued or threatened by the Commission in connection therewith
and take all reasonable actions required to prevent the entry of such stop order
or to remove it if entered;

     (b) prepare and file with the Commission such amendments and post-effective
amendments to the registration statement as may be necessary to keep the
registration statement effective for (i) a period of not less than nine (9)
months in the case of a registration statement on Form S-1 or S-2, or (ii) an
indefinite period in the case of a registration statement on Form S-3 (or such
shorter period which will terminate when all Registrable Securities covered by
such registration statement have been sold or withdrawn, but not prior to the
expiration of the 25-day period referred to in Section 4(3) of the Act and Rule
174 thereunder, if applicable); cause the prospectus to be supplemented by any
required prospectus supplement, and as so supplemented to be filed pursuant to
Rule 424 under the Act; and comply with the provisions of the Act applicable to
it with regard to the disposition of all securities covered by such registration
statement during the applicable period in accordance with the intended methods
of disposition by the sellers thereof set forth in such registration statement
or supplement to the prospectus;

     (c) furnish to any holder of Registrable Securities included in such
registration statement and the underwriter or underwriters, if any, without
charge, at least one signed copy of the registration statement and any post-
effective amendment thereto upon request, and such number of conformed copies
thereof and such number of copies of the prospectus (including each preliminary
prospectus) and any amendments or supplements thereto and any documents
incorporated by reference therein, as such holder or underwriter may reasonably
request in order to facilitate the disposition of the Registrable Securities
being sold by such holder (it being understood that the Company consents to the
use of the prospectus and any amendment or

                                       4
<PAGE>
 
supplement thereto by each holder of Registrable Securities covered by the
registration statement and the underwriter or underwriters, if any, in
connection with the offering and sale of the Registrable Securities covered by
the prospectus or any amendment or supplement thereto);

     (d) notify each holder of Registrable Securities included in such
registration statement, at any time when a prospectus relating thereto is
required to be delivered under the Act, when the Company becomes aware of the
happening of any event as a result of which the prospectus included in such
registration statement (as then in effect) contains any untrue statement of a
material fact or omits to state a material fact necessary to make the statements
therein, in light of the circumstances under which they were made not misleading
and, as promptly as practicable thereafter, prepare and file with the Commission
and furnish a supplement or amendment to such prospectus so that, as thereafter
delivered to the purchasers of such Registrable Securities, such prospectus will
not contain any untrue statement of a material fact or omit to state a material
fact necessary to make the statements therein, in light of the circumstances
under which they were made, not misleading;

     (e) notify each holder of Registrable Securities included in such
registration statement and the managing underwriters, if any, promptly, and
confirm such advice in writing, (i) when a prospectus or any prospectus
supplement or post-effective amendment has been filed, and, with respect to a
registration statement or any post-effective amendment, when the same has become
effective, (ii) of any request by the Commission for amendments or supplements
to a registration statement or related prospectus or for additional information,
and (iii) of the receipt by the Company of any notification with respect to the
suspension of the qualification of any of the registrable securities for sale in
any jurisdiction or the initiation or threatening of any proceeding for such
purpose;

     (f) use its reasonable best efforts to cause all Registrable Securities
included in such registration statement to be listed, by the date of the first
sale of Registrable Securities pursuant to such registration statement, on each
securities exchange on which the Common Stock of such issuer is then listed or
proposed to be listed, if any, or to qualify all Registrable Securities for
quotation and trading through the National Association of Securities Dealers
Automated Quotation System ("NASDAQ") if the Common Stock is then quoted through
the NASDAQ;

     (g) make generally available to its security holders an earnings statement
satisfying the provisions of Section 11(a) of the Act and Rule 158 thereunder no
later than 45 days after the end of the 12-month period beginning with the first
day of the Company's first fiscal quarter commencing after the effective date of
the registration statement, which earnings statement shall cover said 12-month
period;

     (h) make every reasonable effort to obtain the withdrawal of any order
suspending the effectiveness of the registration statement at the earliest
possible moment;

     (i) if requested by the managing underwriter or underwriters or any holder
of Registrable Securities covered by the registration statement, promptly
incorporate in a prospectus supplement or post-effective amendment such
information as the managing underwriter or underwriters or such holder, as the
case may be, reasonably requested to be included therein,

                                       5
<PAGE>
 
including, without limitation, information with respect to the number of
Registrable Securities being sold by such holder to an underwriter or
underwriters, the purchase price being paid therefor by such underwriter or
underwriters and with respect to any other terms of the underwritten offering of
the Registrable Securities to be sold in such offering, and promptly make all
required filings of such prospectus supplement or post-effective amendment;

     (j) as promptly as practicable after filing with the Commission of any
document which is incorporated by reference in a prospectus contained in a
registration statement, deliver a copy of such document to each holder of
Registrable Securities covered by such registration statement;

     (k) on or prior to the date on which the registration statement is declared
effective, use its reasonable best efforts to register or qualify, and cooperate
with the holders of Registrable Securities included in such registration
statement, the underwriter or underwriters, if any, and their counsel, in
connection with the registration or qualification of the Registrable Securities
covered by the registration statement for offer and sale under the securities or
blue sky laws of each state and other jurisdiction of the United States as any
such holder or underwriter reasonably requests in writing, to use its reasonable
best efforts to keep each such registration or qualification effective,
including through new filings, or amendments or renewals, during the period such
registration statement is required to be kept effective and to do any and all
other acts or things necessary or advisable to enable the disposition in all
such jurisdictions of the Registrable Securities covered by the applicable
registration statement; provided that the Company will not be required to
qualify generally to do business in any jurisdiction where it is not then so
qualified or to take any action which would subject it to general service of
process in any such jurisdiction where it is not then so subject;

     (l) cooperate with the holders of Registrable Securities covered by the
registration statement and the managing underwriter or underwriters, if any, to
facilitate the timely preparation and delivery of certificates (not bearing any
restrictive legends) representing securities to be sold under the registration
statement, and enable such securities to be in such denominations and registered
in such names as the managing underwriter or underwriters, if any, or such
holders may request;

     (m) use its reasonable best efforts to cause the Registrable Securities
covered by the registration statement to be registered with or approved by such
other governmental agencies or authorities within the United States as may be
necessary to enable the seller or sellers thereof or the underwriter or
underwriters, if any, to consummate the disposition of such securities;

     (n) enter into such customary agreements (including an underwriting
agreement in customary form with provisions as may be reasonably required by the
managing underwriter retained by the holders of Registrable Securities) and take
all such other actions as the holders of a majority of the Registrable
Securities being sold or the managing underwriter or underwriters retained by
holders participating in an underwritten public offering, if any, reasonably
request in order to expedite or facilitate the disposition of such Registrable
Securities in each case to the same extent as if all the securities then being
offered were for the account of the Company;

                                       6
<PAGE>
 
     (o) make available for inspection by any holder of Registrable Securities
included in such registration statement, any underwriter participating in any
disposition pursuant to such registration statement, and any attorney,
accountant or other agent retained by any such seller or underwriter
(collectively, the "Inspectors"), all financial and other records, pertinent
corporate documents and properties of the Company (collectively, the "Records"),
as shall be reasonably necessary to enable them to exercise their due diligence
responsibility, and cause the Company's officers, directors and employees to
supply all information reasonably requested by any such Inspector in connection
with such registration statement; provided that records which the Company
determines, in good faith, to be confidential and which it notifies the
Inspectors are confidential shall not be disclosed by the Inspectors unless (i)
the disclosure of such Records is necessary to avoid or correct a misstatement
or omission in the registration statement or (ii) the release of such Records is
ordered pursuant to a subpoena or other order from a court of competent
jurisdiction; provided, further, each holder of Registrable Securities agrees
that it will, upon learning that disclosure of such Records is sought in a court
of competent jurisdiction, give notice to the Company and allow the Company at
its expense, to undertake appropriate action and to prevent disclosure of the
Records deemed confidential; and

     (p) use its reasonable best efforts to obtain a cold comfort letter from
the Company's independent public accountants in customary form and covering such
matters of the type customarily covered by cold comfort letters as the holders
of a majority of the Registrable Securities being sold reasonably request.

     Each holder, upon receipt of any notice from the Company of the happening
of any event of the kind described in subsection (d) of this Section 4, will
forthwith discontinue disposition of the Registrable Securities until such
holder's receipt of the copies of the supplemented or amended prospectus
contemplated by subsection (d) of this Section 4 or until it is advised in
writing (the "Advice") by the Company that the use of the prospectus may be
resumed, and has received copies of any additional or supplemental filings which
are incorporated by reference in the prospectus, and, if so directed by the
Company, such holder will, or will request the managing underwriter or
underwriters, if any, to deliver to the Company (at the Company's expense) all
copies (other than permanent file copies) then in the possession of such holder
and of any underwriter or underwriters, of the prospectus covering such
Registrable Securities current at the time of receipt of such notice.  In the
event the Company shall give any such notice, the time periods mentioned in
subsection (b) of this Section 4 shall be extended by the number of days during
the period from and including the date of the giving of such notice to and
including the date when each seller of Registrable Securities covered by such
registration statement shall have received the copies of the supplemented or
amended prospectus contemplated by subsection (d) of this Section 4 hereof or
the Advice.

     Each holder of Registrable Securities hereby covenants that it will not
make any sale of Registrable Securities that are registered in accordance with
Section 2 or 3 hereof without first effectively causing the prospectus delivery
requirements under the Act to be satisfied, and each such holder acknowledges
and agrees that if sold in a non-underwritten public offering, such shares are
not transferable on the books of the Company unless the stock certificates
submitted to the transfer agent evidencing the shares is accompanied by a
certificate to the effect that the

                                       7
<PAGE>
 
shares have been sold in accordance with an effective registration statement and
the requirements of delivering a current prospectus have been satisfied.

     Each seller of Registrable Securities as to which any registration is being
effected shall use reasonable efforts to cooperate with the Company, and the
Company may require each such seller to furnish to the Company such information
regarding the distribution of such securities as the Company may from time to
time reasonably request in writing.

5.   Registration Expenses.
     --------------------- 

     All expenses incident to the Company's performance of or compliance with
this Agreement, including without limitation all Commission and National
Association of Securities Dealers, Inc. registration and filing fees, fees and
expenses of compliance with securities or blue sky laws  (including fees and
disbursements of counsel in connection with blue sky qualifications of the
Registrable Securities), printing expenses, messenger and delivery expenses,
internal expenses (including, without limitation, all salaries and expenses of
the Company's officers and employees performing legal or accounting duties), the
fees and expenses incurred in connection with the listing of the securities to
be registered on each securities exchange on which similar securities issued by
the Company are then listed, and fees and disbursements of counsel for the
Company and its independent certified public accountants (including the expenses
of any "cold comfort" letters required by or incident to such performance and
the fees and expenses of any special audit required or incident to a
registration hereunder), fees and disbursements of not more than one special
counsel for the holders of Registrable Securities, securities act liability
insurance of the Company and its officers and directors (if the Company elects
to obtain such insurance), the fees and expenses of any special experts retained
by the Company in connection with such registration, fees and expenses of other
persons retained by the Company incurred in connection with each registration
hereunder (but not including any underwriting fees, discounts or commissions
attributable to the sale of Registrable Securities, and transfer taxes, if any),
will be borne by the Company.

6.   Indemnification; Contribution.
     ----------------------------- 

     (a) Indemnification by the Company.  The Company agrees to indemnify and
         ------------------------------                                      
hold harmless each holder of Registrable Securities, its officers, directors,
agents, employees, representatives and each person or entity who controls such
holder (within the meaning of the Act), against all losses, claims, damages,
liabilities and expenses (including reasonable costs of investigation) arising
out of or based upon any untrue or alleged untrue statement of material fact
contained in any registration statement, any amendment or supplement thereto,
any prospectus or preliminary prospectus or any omission or alleged omission to
state therein a material fact required to be stated therein or necessary to make
the statements therein not misleading, except insofar as the same arise out of
or are based upon any such untrue statement or omission based upon information
with respect to such holder furnished in writing to the Company by such holder
expressly for use therein.  In connection with an underwritten offering, the
Company will indemnify the underwriters thereof, their officers and directors
and each person who controls such underwriters (within the meaning of the Act)
to the same extent as provided above with respect to the indemnification of the
holders of Registrable Securities.

                                       8
<PAGE>
 
     (b) Indemnification by Holders of Registrable Securities.  In connection
         ----------------------------------------------------                
with any registration statement in which a holder of Registrable Securities is
participating, each such holder will furnish to the Company in writing such
information with respect to the name and address of such holder, the amount of
Registrable Securities held by such holder, and such other information as is
required by the Company for use in connection with any such registration
statement or prospectus and agrees to indemnify, to the extent permitted by law,
the Company, its directors and officers and each person or entity who controls
the Company (within the meaning of the Act) against any losses, claims, damages,
liabilities and expenses arising out of or based upon any untrue statement of
material fact contained in any registration statement, any amendment or
supplement thereto, any prospectus or preliminary prospectus or any omission to
state therein a material fact required to be stated therein or necessary to make
the statements therein not misleading, to the extent, but only to the extent,
that such untrue statement or omission is contained in any information with
respect to such holder so furnished in writing by such holder specifically for
inclusion in any prospectus or registration statement.  In no event shall the
liability of any selling holder of Registrable Securities hereunder be greater
in amount than the dollar amount of the net proceeds received by such holder
upon the sale of the Registrable Securities giving rise to such indemnification
obligation.

     (c) Conduct of Indemnification Proceedings.  Any person entitled to
         --------------------------------------                         
indemnification hereunder agrees to give prompt written notice to the
indemnifying party after the receipt by such person of any written notice of the
commencement of any action, suit, proceeding or investigation or threat thereof
made in writing for which such Person will claim indemnification or contribution
pursuant to this Agreement and, unless in the reasonable judgment of such
indemnified party (i) a conflict of interest may exist between such indemnified
party and the indemnifying party with respect to such claim or (ii) the named
parties to any such action, suit, proceeding or investigation (including any
impleaded parties) include both an indemnifying party and an indemnified party,
and such indemnified party shall have been advised by counsel that there may be
one or more legal defenses available to it which are different from or
additional to those available to the indemnifying party, permit the indemnifying
party to assume the defense of such claim with counsel reasonably satisfactory
to such indemnified party.  Whether or not such defense is assumed by the
indemnifying party, the indemnifying party will not be subject to any liability
for any settlement made without its consent (but such consent will not be
unreasonably withheld).  No indemnifying party will consent to entry of any
judgment or enter into any settlement which does not include as an unconditional
term thereof the giving by the claimant or plaintiff to such indemnified party
of a release from all liability in respect of such claim or litigation.  If the
indemnifying party is not entitled to, or elects not to, assume the defense of a
claim, it will not be obligated to pay the fees and expenses of more than one
counsel with respect to such claim, unless in the reasonable judgment of any
indemnified party a conflict of interest may exist between such indemnified
party and any other of such indemnified parties with respect to such claim, in
which event the indemnifying party shall be obligated to pay the fees and
expenses of one additional counsel.

     (d) Contribution.  If the indemnification provided for in this Section 6
         ------------                                                        
from the indemnifying party is unavailable to an indemnified party hereunder in
respect of any losses, claims, damages, liabilities or expenses referred to
therein, then the indemnifying party, in lieu of indemnifying such indemnified
party, shall contribute to the amount paid or payable by such

                                       9
<PAGE>
 
indemnified party as a result of such losses, claims, damages, liabilities or
expenses in such proportion as is appropriate to reflect the relative fault of
the indemnifying party and indemnified parties in connection with the actions
which resulted in such loses, claims, damages, liabilities or expenses, as well
as any other relevant equitable considerations.  The relative fault of such
indemnifying party and indemnified parties shall be determined by reference to,
among other things, whether any statement of a material fact or omission or
alleged omission to state a material fact, has been made by, or relates to
information supplied by, such indemnifying party or indemnified parties, and the
parties' relative intent, knowledge, access to information and opportunity to
correct or prevent such action.  The amount paid or payable by a party as a
result of the losses, claims, damages, liabilities and expenses referred to
above shall be deemed to include, subject to the limitations set forth in
Section 6(c), any legal or other fees or expenses reasonably incurred by such
party in connection with any investigation or proceeding.

     The parties hereto agree that it would not be just and equitable if
contribution pursuant to this Section 6(d) were determined by pro rata
allocation or by any other method of allocation which does not take account of
the equitable considerations referred to in the immediately preceding paragraph.
Notwithstanding the provisions of this Section 6(d), no underwriter shall be
required to contribute any amount in excess of the amount by which the total
price at which the Registrable Securities underwritten by it and distributed to
the public were offered to the public exceeds the amount of any damages which
such underwriter has otherwise been required to pay by reason of such untrue or
alleged untrue statement or omission or alleged omission, and no selling holder
shall be required to contribute any amount in excess of the amount by which the
dollar amount of the net proceeds received by such selling holder upon the sale
of the Registrable Securities exceeds the amount of damages which such selling
holder has otherwise been required to pay by reason of such untrue or alleged
untrue statement or omission or alleged omission.  No person guilty of
fraudulent misrepresentation (within the meaning of Section 11(f) of the Act)
shall be entitled to contribution from any Person who was not guilty of such
fraudulent misrepresentation.

     If indemnification is available under this Section 6, the indemnifying
parties shall indemnify each indemnified party to the full extent provided in
Section 6(a) and (b) without regard to the relative fault of said indemnifying
party or indemnified party or any other equitable consideration provided for in
this Section 6(d).

7.   Participation in Underwritten Registrations.
     ------------------------------------------- 

     No holder of Registrable Securities may participate in any underwritten
registration hereunder unless such holder (a) agrees to sell such holder's
securities on the basis provided in any underwriting arrangements approved by
the persons entitled hereunder to approve such arrangements and (b) completes
and executes all questionnaires, powers of attorney, indemnities, underwriting
agreements and other documents reasonably required under the terms of such
underwriting arrangements.

                                       10
<PAGE>
 
8.   Rule 144.
     -------- 

     The Company agrees that it will use its reasonable best efforts to make and
keep public information available, as those terms are understood and defined in
Rule 144 under the Act, at all times.  The Company agrees that it will use its
reasonable best efforts to file with the Commission in a timely manner the
reports required to be filed by it under the Act and the Exchange Act and the
rules and regulations adopted by the Commission thereunder.  The Company shall
furnish to any holder of Registrable Securities upon written request a written
statement as to the steps it has taken to comply with the current public
information requirements of Rule 144.

9.   Transfer of Registration Rights.
     ------------------------------- 

     The registration rights provided to the holders of Registrable Securities
under Sections 2 and 3 hereof may be transferred in whole or in part to any
other Person in connection with a transfer of all or any portion of Registrable
Securities or the transfers of Warrants.  Any transferee of Registrable
Securities who is also a transferee of the registration rights provided under
Sections 2 and 3 hereof shall be a holder of Registrable Securities within the
meaning of this Agreement and shall have the rights as such hereunder.

10.  Additional Grants of Registration Rights.
     ---------------------------------------- 

     The Company shall not hereafter enter into any agreement with respect to
its securities which is inconsistent with the rights granted to the holders of
Registrable Securities in this Agreement.  If the Company shall hereafter grant
any registration or similar rights with respect to securities of the Company
which are more favorable than the rights granted pursuant to this Agreement,
each holder or Registrable Securities shall immediately be vested with such more
favorable rights.  The Company will not grant to any Person at any time on or
after the date hereof the right to request the Company to include any securities
of the Company owned by such Person in any registration statement filed under
Section 2 of this Agreement unless such right provides that such securities
shall not be registered and sold in such registration if the managing
underwriter for the sellers of securities pursuant to a registration statement
filed under Section 2 believes that sale of such securities would adversely
affect the amount of, or price at which, the Registrable Securities being
registered under Section 2 can be sold.

11.  Holdback Agreements.
     ------------------- 

     (a) Restrictions on Public Sale by Holder of Registrable Securities.  Each
         ---------------------------------------------------------------       
holder of Registrable Securities, whose securities are included in such
registration statement, agrees, if requested by the Company, not to effect any
public sale or distribution of equity securities of the Company, including a
sale pursuant to Rule 144 under the Act, during the seven (7) days prior to, and
during the 90-day period beginning on, the effective date of any underwritten
Demand Registration or any underwritten Piggyback Registration (except as part
of such underwritten registration).

                                       11
<PAGE>
 
     (b) Restrictions on Public Sale by the Company and Others.  The Company
         -----------------------------------------------------              
agrees (1) not to effect any public sale or distribution of its equity
securities, or any securities convertible into or exchangeable or exercisable
for such equity securities, including a sale pursuant to Regulation D under the
Act, during the seven (7) days prior to, and during the 90-day period beginning
on, the effective date of any underwritten Demand Registration or any
underwritten Piggyback Registration (except as part of such underwritten
registration or pursuant to registrations on Form S-8 or any successor form to
Form S-8), and (2) to cause each holder of its privately placed equity
securities, or any securities convertible into or exchangeable or exercisable
for such equity securities (other than Registrable Securities), purchased from
the Company at any time on or after the date of this Agreement to agree not to
effect any public sale or distribution of any such securities during such
period, including a sale pursuant to Rule 144 under the Act (except as part of
such underwritten registration, if permitted).

12.  Miscellaneous.
     ------------- 

     (a) Amendments and Waivers.  Except as otherwise provided herein, the
         ----------------------                                           
provisions of this Agreement may not be amended, modified or supplemented, and
waivers or consents to departures from the provisions hereof may not be given
unless the Company has obtained the written consent of holders of at least a
majority in number of shares of Registrable Securities then outstanding and
affected by such amendment, modification, supplement, waiver or departure
(which, with respect to Warrants then outstanding, shall be computed based on
the number of Warrant Shares (as defined in the Warrant Agreement) which the
Warrants evidence the right to purchase).

     (b) Notices.  Any notice or communication hereunder or in any agreement
         -------                                                            
entered into in connection with the transactions contemplated hereby must be in
writing and given by depositing the same in the United States mail, addressed to
the party to be notified, postage prepaid and registered or certified with
return receipt requested, or by delivering the same in person, by overnight
courier or by facsimile transmission.  Such notice shall be deemed received on
the date on which it is hand-delivered, delivered by overnight courier or
received by facsimile transmission or on the third business day following the
date on which it is so mailed.  For purposes of notice, the addresses of the
parties shall be:

          (i)  if to a holder of Registrable Securities at the most current
     address given by such holder to the Company in writing;

          (ii) if to the Company at its address set forth in the Warrant
     Agreement.

     (c) Successors and Assigns.  This Agreement shall inure to the benefit of
         ----------------------                                               
and be binding upon the successors and assigns of each of the parties.

     (d) Counterparts.  This Agreement may be executed in any number of
         ------------                                                  
counterparts and by the parties hereto in separate counterparts, each of which
when so executed shall be deemed to be an original and all of which taken
together shall constitute one and the same agreement.

                                       12
<PAGE>
 
     (e) Headings.  The headings in this Agreement are for convenience of
         --------                                                        
reference only and shall not limit or otherwise affect the meaning hereof.

     (f) GOVERNING LAW.  THIS AGREEMENT AND THE RIGHTS AND OBLIGATIONS OF THE
         -------------                                                       
PARTIES HERETO SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE
SUBSTANTIVE LAWS (BUT NOT THE RULES GOVERNING CONFLICTS OF LAWS) OF THE STATE OF
DELAWARE.

     (g) Severability.  In the event that any one or more of the provisions
         ------------                                                      
contained herein, or the application thereof in any circumstances, is held
invalid, illegal or unenforceable in any respect for any reason, the validity,
legality and enforceability of any such provision in every other respect and of
the remaining provisions contained herein shall not be in any way impaired
thereby, it being intended that all of the rights and privileges of the
Purchasers shall be enforceable to the fullest extent permitted by law.

     (h) Entire Agreement.  This Agreement, together with the Warrant Agreement,
         ----------------                                                       
is intended by the parties as a final expression of their agreement and intended
to be a complete and exclusive statement of the agreement and understanding of
the parties hereto in respect of the subject matter contained herein and
therein.  There are no restrictions, promises, warranties or undertakings, other
than those set forth or referred to herein and therein.  This Agreement and the
Warrant Agreement (including the exhibits thereto) supersedes all prior
agreements and understandings between the parties with respect to such subject
matter.

     EXECUTED, as of the date first above written.

                                    KNOWLEDGEWARE, INC.,
                                    a Georgia corporation


                                    By: /s/ Francis A. Tarkenton
                                       ---------------------------------
                                         Francis A. Tarkenton,
                                         Chairman of the Board and
                                         Chief Executive Officer


                                    STERLING SOFTWARE, INC.,
                                    a Delaware corporation


                                    By: /s/ Sterling L. Williams
                                       ---------------------------------
                                         Sterling L. Williams,
                                         President

                                       13

<PAGE>
                                                                   EXHIBIT 10.71
 
 FIRST AMENDMENT TO AMENDED AND RESTATED REVOLVING LOAN AND SECURITY AGREEMENT
 
  This First Amendment to Amended and Restated Revolving Loan and Security
Agreement (this "Amendment") is entered into as of the 25th day of October,
1994, by and between KnowledgeWare, Inc., a Georgia corporation (the
"Borrower"), and Sterling Software, Inc., a Delaware corporation ("Sterling"),
amending certain provisions of an Amended and Restated Revolving Loan and
Security Agreement, dated as of August 31, 1994 (the "Loan Agreement"), by and
between the Borrower and Sterling, and the Other Agreements. Terms not
otherwise defined herein which are defined in the Loan Agreement shall have the
meanings given such terms in the Loan Agreement.
 
  WHEREAS, on October 24, 1994, Sterling waived on a limited basis the
Borrowing Base component of the definition of the Maximum Advance Amount (the
"Borrowing Base Waiver"), such that Advances under Section 2.1 shall be limited
to the amount of the Line of Credit, which, under Section 2.1 of the Loan
Agreement, is the maximum amount of $16,000,000.00; and
 
  WHEREAS, upon the terms and subject to the conditions contained herein, the
Borrower has requested Sterling to amend Section 2.1 of the Loan Agreement to
increase the maximum amount of the Line of Credit to $22,000,000.00, and
Sterling has agreed to such request provided that the terms of the Borrowing
Base Waiver do not and shall not extend to the increased amount of the Line of
Credit;
 
  NOW THEREFORE, in consideration of the mutual agreements contained in the
Loan Agreement, and for other good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged, the parties hereto agree as
follows:
 
    1. Section 2.1 of the Loan Agreement is hereby amended to increase the
  Line of Credit from Sixteen Million and No/100 Dollars ($16,000,000.00) to
  Twenty Two Million and No/100 Dollars ($22,000,000.00).
 
    2. The Line of Credit Note shall mean the Revolving Note of
  KnowledgeWare, of even date herewith, payable to the order of Sterling in
  the maximum principal amount of $22,000,000.00, evidencing the obligations
  of KnowledgeWare to Sterling arising pursuant to Section 2.1 of the Loan
  Agreement.
 
    3. Notwithstanding the amendments contained in paragraphs 1 and 2 above,
  the Borrowing Base Waiver shall not extend to any amounts requested to be
  advanced or advanced over the principal amount of $16,000,000.00, unless
  and until Sterling shall specifically agree to extend the Borrowing Base
  Waiver up to the amount of $22,000,000.00 by a writing evidencing such
  agreement.
 
    4. It is specifically acknowledged and agreed that all references to the
  "Assumed Credit Facility" as defined in the Warrant Agreement, dated as of
  August 31, 1994, by and between the Borrower and Sterling, shall refer to
  the Loan Agreement as amended by this Amendment, such that Additional
  Warrants (as defined therein) shall be issued by the Borrower to Sterling
  for each $1,000,000 of the increased amount of the Line of Credit to the
  extent advanced under the Loan Agreement.
 
    5. Any and all terms and provisions of the Loan Agreement and the Other
  Agreements shall be modified and amended wherever necessary, and even
  though not specifically identified herein, to conform to the amendments set
  forth in paragraphs 1 and 2 above. Except as expressly amended hereby, the
  Loan Agreement, the Other Agreements and all documents, instruments and
  agreements related thereto are hereby ratified and confirmed in all
  respects and shall continue in full force and effect. All references in the
  Loan Agreement or such Other Agreements shall hereafter refer to the Loan
  Agreement as amended hereby.
 
    6. Except as expressly provided herein, nothing contained herein shall
  constitute a waiver of, impair or otherwise affect any Obligations, any
  other obligations of the Borrower or any right of Sterling consequent
  thereon.
<PAGE>
 
    7. This amendment may be executed in one or more counterparts, each of
  which shall be deemed an original, but which together shall constitute one
  and the same instrument.
 
  IN WITNESS WHEREOF, the parties hereto have executed this Amendment as a
document under seal as of the date first written above.
 
                                          KnowledgeWare, Inc.
 
                                          By:/s/ Richard M. Haddrill
                                             ---------------------------------
                                          Name:Richard M. Haddrill
                                               -------------------------------
                                          Title:Executive Vice President
                                                ------------------------------
 
                                          ATTEST:/s/ Rick W. Gosset
                                                 -----------------------------
 
                                          Sterling Software, Inc.
 
                                          By:/s/ George H. Ellis
                                             ---------------------------------

                                          Name:George H. Ellis
                                               -------------------------------
                                          Title:Executive Vice President
                                                ------------------------------

                                          ATTEST:/s/ James E. Jenkins, Jr. 
                                                 -----------------------------
<PAGE>
 
                             CONSENT OF GUARANTORS
 
  The undersigned Guarantors hereby consent to the amendments and agreements
contained in the foregoing Amendment and ratify and confirm that the
Collateralized Guaranty executed by each of them is in full force and effect
and not impaired thereby.
 
                                          KnowledgeWare Worldwide, Inc.,
                                          a Georgia Corporation
 
                                          By:/s/ Richard M. Haddrill 
                                             ---------------------------------
                                          Name:Richard M. Haddrill 
                                               -------------------------------
                                          Title:President
                                                ------------------------------
 
                                          IWK Corporation,
                                          a Delaware corporation
 
                                          By:/s/ Richard M. Haddrill  
                                             ---------------------------------
                                          Name:Richard M. Haddrill 
                                               -------------------------------
                                          Title:Secretary
                                                ------------------------------
 
                                          Matesys Corp.,
                                          a California corporation
 
                                          By:/s/ Richard M. Haddrill  
                                             ---------------------------------
                                          Name:Richard M. Haddrill  
                                               -------------------------------
                                          Title:Executive Vice President 
                                                ------------------------------
 
                                          KnowledgeWare International, Inc.,
                                          a Georgia corporation
 
                                          By:/s/ Richard M. Haddrill  
                                             ---------------------------------
                                          Name:Richard M. Haddrill  
                                               -------------------------------
                                          Title:Executive Vice President 
                                                ------------------------------

<PAGE>
 
                                                                      EXHIBIT 21
                                                                      ----------

<TABLE> 
<CAPTION> 

                    LIST OF STERLING SOFTWARE SUBSIDIARIES


        NAME                                                    JURISDICTION OF INCORPORATION
        ----                                                    -----------------------------
<S>                                                                          <C> 
Sterling Consulting S.A.                                                     France                    
Sterling International Finance, Inc.                                         Cayman Islands            
Sterling Software (America), Inc.                                            Delaware                  
Sterling Software (Mid America), Inc.                                        Michigan                  
Sterling Software (Midwest), Inc.                                            Delaware                  
Sterling Software (Northern America), Inc.                                   Delaware                  
Sterling Software (U.S.), Inc.                                               Delaware                  
Sterling Software (U.S.A.), Inc.                                             California                
Sterling Software (United States), Inc.                                      Delaware                  
Sterling Software (United States of America), Inc.                           Delaware                  
        Condessa Gestao E  Investimentos Lda                                 Portugal                  
        Net/Master, Inc.                                                     U.S. Virgin Islands       
        Sterling Software A.B.                                               Sweden                    
        Sterling Software GmbH                                               Germany                   
        Sterling Software International (U.K.) Limited                       United Kingdom            
        Sterling Software (Australia) Pty. Limited                           Australia                 
        Sterling Software (Benelux) NV                                       Belguim                   
        Sterling Software (France) S.A.                                      France                    
        Sterling Software (Japan) Ltd.                                       Japan                     
        Sterling Software (North America), Inc.                              Delaware                  
        Sterling Software (Singapore) Pte Ltd.                               Singapore                 
        Sterling Software (U.S. of America), Inc.                            Delaware                  
        Sterling Software (U.K.) Holdings Limited                            United Kingdom            
        Sterling Software (U.K.) Limited                                     United Kingdom            
        Sterling Software (Switzerland) A.G.                                 Switzerland               
        Systems Center AS                                                    Norway                    
        Systems Center do Brasil Software Ltda.                              Brazil                     
         Systems Center Distribuidora de Software Ltda. (49% subsidiary)     Brazil
        Systems Center Handelsgesellschaft m.b.H.                            Austria
        Systems Center Limited                                               United Kingdom
        Systems Center Pty. Limited                                          Australia
        Systems Center Software Ltd.                                         Hong Kong
        VM Software, Inc.                                                    U.S. Virgin Islands
        VM Software Sarl                                                     France
</TABLE> 
                     
<PAGE>

<TABLE> 
<CAPTION> 

 
               NAME                                               JURISDICTION OF INCORPORATION
               ----                                               -----------------------------
<S>                                                               <C>         
Sterling Software (Canada), Inc.                                                   Canada       
Sterling Software International (France) Sarl                                      France       
Sterling Software International, Inc.                                              Delaware     
Sterling Software International  (Australia) Limited                               Delaware     
Sterling Software (Israel), Ltd.                                                   Israel       
Sterling Software (Italia) S.R.L.                                                  Italy        
Sterling Software Leasing Company                                                  Delaware     
Sterling Software (Scandinavia) AS                                                 Norway       
Sterling ZeroOne, Inc                                                              Delaware     
Systems Center, Inc.                                                               Wyoming      
VM Software U.K. Ltd.                                                              United Kingdom
ZeroOne Systems, Inc.                                                              Delaware      

</TABLE> 



Notes:

1.   Indented names are subsidiaries of subsidiaries.

2.   Inclusion in the list is not a representation that the subsidiary is a 
     significant subsidiary.

3.   Except as noted, voting shares of all subsidiaries are 100% owned by 
     Sterling Software, Inc., its subsidiaries or employee nominees.

<PAGE>
 
                                                                    Exhibit 23.1

                        Consent of Independent Auditors

We consent to all references to our firm in the Registration Statement 
(Form S-4) pertaining to the registration of 2,654,652 shares of common stock of
Sterling Software, Inc. and to the incorporation by reference therein of our
report dated November 15, 1993, with respect to the consolidated financial
statements and schedules of Sterling Software, Inc. included in its Annual
Report on Form 10-K for the year ended September 30, 1993, as amended by 
Form 10-K/A Amendment No. 1 filed January 26, 1994, filed with Securities and 
Exchange Commission.

                                                            /s/Ernst & Young LLP

Dallas, Texas
October 24, 1994

                                                            

<PAGE>
 
                                                                    Exhibit 23.2

                   CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS

As independent public accountants, we hereby consent to the incorporation by 
reference in this registration statement of our report dated June 18, 1993 
(except with respect to the matter discussed in Note 19 at to which the date is 
June 1, 1993), included in Sterling Software, Inc.'s Annual Report on Form 10-K 
for the year ended September 30, 1993, and to all references to our Firm 
included in this registration statement.


Washington, D.C.
October 24, 1994

                                                         /s/ Arthur Andersen LLP

<PAGE>
 
                                                                    Exhibit 23.3

                      Consent of Independent Accountants

We consent to the incorporation by reference in this registration statement on
Form S-4 of our report, which includes an explanatory paragraph about 
KnowledgeWare, Inc.'s ability to continue as a going concern, dated August 31,
1994, on our audit of the financial statements of KnowledgeWare, Inc. and
Subsidiaries. We also consent to the reference to our firm under the caption
"Experts".


Atlanta, Georgia
October 26, 1994

                                                    /s/ Coopers & Lybrand L.L.P.

<PAGE>
 
                                                                    Exhibit 23.4

                  CONSENT OF ALEX. BROWN & SONS INCORPORATED

     Alex. Brown & Sons Incorporated hereby consents to the use of its name in
the Proxy Statement/Prospectus forming part of this Registration Statement on
Form S-4 and to the filing of its letter attached as Appendix B to the Proxy 
Statement/Prospectus. In giving such consent, Alex. Brown & Sons Incorporated 
does not admit that it falls within the category of persons whose consent is 
required under Section 7 to the Securities Act of 1933, as amended, and the 
Rules and Regulations issued thereunder.


Date: October 24, 1994                     /s/ Alex. Brown & Sons Incorporated



                                             



    

<PAGE>
 
                                                                    Exhibit 23.6

                                            CONSENT OF HICKS, MALOOF & CAMPBELL,
                                                      A PROFESSIONAL CORPORATION


      Hicks, Maloof & Campbell, A Professional Corporation, hereby consents to 
the use of its name in the Proxy Statement/Prospectus forming part of this
Registration Statement on Form S-4 and to the reference to this Firm in this
Registration Statement on Form S-4 under the caption "Legal Matters". In giving
this consent we do not thereby admit that we come within the category of persons
whose consent is required under Section 7 of the Securities Act of 1933, as
amended, and the rules and regulations issued thereunder.

                                                   /s/ Hicks, Maloof & Campbell,
                                                     A Professional Corporation

Date: October 24, 1994



<PAGE>
                                                                      EXHIBIT 99
                                                                PRELIMINARY COPY
 
- --------------------------------------------------------------------------------
                              KNOWLEDGEWARE, INC.
                    PROXY -- SPECIAL MEETING OF STOCKHOLDERS
          THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS
 
P     The undersigned hereby appoints Richard M. Haddrill and Rick W. Gossett, 
    each with power to act without the other and with full power of 
R   substitution, as Proxies to represent and to vote, as designated on the 
    reverse side, all stock of KnowledgeWare, Inc. owned by the undersigned, at 
O   the Special Meeting of Stockholders to be held at the Hotel Nikko, 3300 
    Peachtree Road, Atlanta, Georgia, on    , November   , 1994, at 10:00 a.m., 
X   local time, upon such business as may properly come before the meeting or 
    any adjournment thereof including the following as set forth on the 
Y   reverse side.

      THIS PROXY WHEN PROPERLY EXECUTED WILL BE VOTED IN THE MANNER DIRECTED 
    HEREIN BY THE UNDERSIGNED STOCKHOLDER. IF NO SPECIFIC DIRECTION IS GIVEN, 
    THIS PROXY WILL BE VOTED FOR THE ADOPTION AND APPROVAL OF THE MERGER 
    AGREEMENT (AS DEFINED ON THE REVERSE SIDE), IF NECESSARY, THE ADJOURNMENT 
    OF THE MEETING FOR THE PURPOSE OF SOLICITING ADDITIONAL PROXIES AND AT THE 
    DISCRETION OF THE PROXY HOLDERS WITH REGARD TO ANY OTHER MATTER THAT MAY 
    PROPERLY COME BEFORE THE MEETING OR ANY ADJOURNMENT THEREOF.

    1. Adoption and approval of the Amended and Restated Agreement and Plan of
    Merger by and among Sterling Software, Inc. ("Sterling"), SSI Corporation
    ("SSI"), a wholly owned subsidiary of Sterling, and KnowledgeWare, Inc.
    ("KnowledgeWare") (the "Merger Agreement") pursuant to which SSI will merge
    with and into KnowledgeWare, as more fully described in the accompanying 
    Proxy Statement/Prospectus.

              FOR              AGAINST             ABSTAIN
              [_]                [_]                 [_]
                                                                   -----------
                                                                   SEE REVERSE
[X] PLEASE MARK                                                        SIDE
    VOTES AS IN                                                    -----------
    THIS EXAMPLE.  (Continued, and to be signed and dated on reverse side)
- --------------------------------------------------------------------------------

<PAGE>
 
 
                                                                  MARK HERE [ ]
                                                                FOR ADDRESS
                                                                 CHANGE AND
                                                                 NOTE BELOW

2. If necessary, the adjournment of the meeting for the purpose of soliciting
additional proxies.

          FOR                  AGAINST                ABSTAIN
          [ ]                    [ ]                    [ ]
 
3. In their discretion on any other matter that may properly come before the
meeting or any adjournment thereof.
 
                                             Please date, sign exactly as
                                             shown hereon and mail promptly
                                             this proxy in the enclosed enve-
                                             lope. When there is more than one
                                             owner, each should sign. When
                                             signing as an attorney, adminis-
                                             trator, executor, guardian or
                                             trustee, please add your title as
                                             such. If executed by a corpora-
                                             tion, the proxy should be signed
                                             by a duly authorized officer. If
                                             executed by a partnership, please
                                             sign in the partnership name by
                                             an authorized person.
 
                                             Date 
                                                 -----------------------------
                                             Signature:
                                                        ----------------------- 
                                             Signature: 
                                                        -----------------------


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