CARNEGIE GROUP INC
8-K, 1998-10-06
COMPUTER PROCESSING & DATA PREPARATION
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<PAGE>
 
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                 ______________


                                    FORM 8-K


                                 CURRENT REPORT
                     PURSUANT TO SECTION 13 OR 15(d) OF THE
                        SECURITIES EXCHANGE ACT OF 1934



Date of Report (Date of earliest event reported):  September 30, 1998



                              CARNEGIE GROUP, INC.
             (Exact name of registrant as specified in its charter)


            DELAWARE                    0-26964                25-1435252
  (State or other jurisdiction        (Commission            (IRS Employer
         of incorporation)            File Number)         Identification No.)
 

       FIVE PPG PLACE, PITTSBURGH, PA                      15222
  (Address of principal executive offices)               (Zip code)



Registrant's telephone number, including area code: (412) 642-6900
<PAGE>
 
Item 5.  OTHER EVENTS.

     On September 30, 1998, Carnegie Group, Inc., a Delaware corporation (the
"Company"), entered into an Agreement and Plan of Merger (the "Merger
Agreement") with Logica Inc., a Delaware corporation ("Parent"), and Logica
Acquisition Corporation, a Delaware corporation and a wholly-owned subsidiary of
Parent (the "Purchaser"). The Merger Agreement provides, among other things, for
the Purchaser to commence a tender offer (the "Offer") for all of the issued and
outstanding shares of Common Stock, par value $.01 per share, of the Company
(the "Shares"), at a price of $5.00 per Share, net to the seller in cash (the
"Offer Price"), and, following the consummation of the Offer, the merger of the
Purchaser with and into the Company (the "Merger") and the conversion of all of
the outstanding Shares (with certain exceptions described below) into the right
to receive the Offer Price. The Offer is subject to the satisfaction or waiver
of certain conditions, including there being validly tendered and not withdrawn
at least a majority of the Shares outstanding as of the date of the expiration
of the Offer (on a fully diluted basis). At the effective time of the Merger,
each issued and outstanding Share, other than Shares owned directly or
indirectly by the Company or Parent or Shares as to which the holders thereof
exercise dissenters' appraisal rights, will be converted into the right to
receive the Offer Price.

     The Merger Agreement further provides that, promptly upon the acquisition
of Shares by the Purchaser pursuant to the Offer, Parent will be entitled to
designate such number of directors, rounded up to the next whole number, on the
Board of Directors of the Company (the "Company Board") as is equal to the
product of (a) the total number of directors on the Company Board (after giving
effect to the directors designated by Parent pursuant to this sentence) and (b)
the percentage of the total votes represented by such number of shares in the
election of directors of the Company so purchased bears to the total votes
represented by the number of Shares outstanding.

     If the Purchaser acquires less than 90% of the outstanding Shares in the
Offer, the consummation of the Merger will be subject to, among other things,
approval by the affirmative vote of the stockholders of the Company pursuant to
applicable Delaware law. If the Purchaser acquires greater than 90% of the
outstanding Shares in the Offer, it intends to effect a short-form merger as
permitted under Delaware law.

     The foregoing description of the Merger Agreement is qualified in its 
entirety by reference to the Merger Agreement, a copy of which is attached 
hereto as Exhibit 2.1 and incorporated herein in its entirety by reference.

     Concurrently with the execution of the Merger Agreement, Parent, the
Purchaser, the Company and each executive officer and director of the Company
who owns Shares, as well as, where applicable, such persons' spouses or trusts
or custodianships for the benefit of their children owning Shares (the
"Stockholder Parties"), executed a tender agreement (collectively, the "Tender
Agreements") pursuant to which each Stockholder Party agreed, among other
things, to tender all Shares owned by him, her or it in the Offer. As of the 
date hereof, these Stockholder Parties own approximately 18.3% of the
outstanding Shares.

     The foregoing description of the Tender Agreements is qualified in its 
entirety by reference to the Tender Agreements, copies of which are attached 
hereto as Exhibits 2.2 through 2.6 and incorporated herein in their entirety by 
reference.

     On October 1, 1998, the Company issued a press release announcing the
execution of the Merger Agreement, a copy of which is attached hereto as Exhibit
99.1 and incorporated herein in its entirety by reference.


Item 7.  FINANCIAL STATEMENTS, PRO FORMA FINANCIAL INFORMATION AND EXHIBITS.

     (a)  Not applicable.
 
     (b)  Not applicable.

     (c)  The following are furnished as exhibits to this report:

          2.1 Agreement and Plan of Merger dated as of September 30, 1998 by and
              among Logica, Inc., Logica Acquisition Corp. and Carnegie Group,
              Inc.

          2.2 Tender Agreement dated as of September 30, 1998 by and among 
              Logica Inc., Logica Acquisition Corp., Carnegie Group, Inc. and
              Raj Reddy, Anuradha Reddy, Anuradha Reddy as Trustee of the Geetha
              Reddy Trust and Anuradha Reddy as Trustee of the Shyamala Reddy 
              Trust

          2.3 Tender Agreement dated as of September 30, 1998 by and among 
              Logica Inc., Logica Acquisition Corp., Carnegie Group, Inc. and
              Jaime Carbonell, Jaime Carbonell as Custodian for Diana Carbonell,
              Jaime Carbonell as Custodian for Isabelle Carbonell, Jaime
              Carbonell as Custodian for Ruben Carbonell, Jaime Carbonell as
              Custodian for Rachel Carbonell, Jaime Carbonell in Trust for Diana
              Carbonell, Jaime Carbonell in Trust for Isabella Carbonell, Jaime
              Carbonell in Trust for Ruben Carbonell and Jaime Carbonell in
              Trust for Rachel Carbonell

          2.4 Tender Agreement dated as of September 30, 1998 by and among 
              Logica Inc., Logica Acquisition Corp., Carnegie Group, Inc. and
              Mark S. Fox, Tressa S. Fox and Tressa S. Fox in Trust for Jacob
              Fox

          2.5 Tender Agreement dated as of September 30, 1998 by and among 
              Logica Inc., Logica Acquisition Corp., Carnegie Group, Inc. and
              Dennis Yablonsky and Veronica Yablonsky


          2.6 Tender Agreement dated as of September 30, 1998 by and among 
              Logica Inc., Logica Acquisition Corp., Carnegie Group, Inc. and
              John W. Manzetti


         99.1 Press Release issued on October 1, 1998 by Carnegie Group, Inc.

                                       2
<PAGE>
 
                                   SIGNATURES


     Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned hereunto duly authorized.


                                    CARNEGIE GROUP, INC.


                                    By:   /s/  John W. Manzetti
                                        -----------------------------
                                         John W. Manzetti
                                         Chief Financial Officer

Date:  October 5, 1998

                                       3
<PAGE>
 
                                 EXHIBIT INDEX


Exhibit No.      Description
- -----------      -----------

    2.1          Agreement and Plan of Merger dated as of September 30, 1998 
                 by and among Logica, Inc., Logica Acquisition Corp. and
                 Carnegie Group, Inc.

    2.2          Tender Agreement dated as of September 30, 1998 by and among 
                 Logica Inc., Logica Acquisition Corp., Carnegie Group, Inc. and
                 Raj Reddy, Anuradha Reddy, Anuradha Reddy as Trustee of the
                 Geetha Reddy Trust and Anuradha Reddy as Trustee of the
                 Shyamala Reddy Trust

    2.3          Tender Agreement dated as of September 30, 1998 by and among 
                 Logica Inc., Logica Acquisition Corp., Carnegie Group, Inc. and
                 Jaime Carbonell, Jaime Carbonell as Custodian for Diana
                 Carbonell, Jaime Carbonell as Custodian for Isabelle Carbonell,
                 Jaime Carbonell as Custodian for Ruben Carbonell, Jaime
                 Carbonell as Custodian for Rachel Carbonell, Jaime Carbonell in
                 Trust for Diana Carbonell, Jaime Carbonell in Trust for
                 Isabella Carbonell, Jaime Carbonell in Trust for Ruben
                 Carbonell and Jaime Carbonell in Trust for Rachel Carbonell

    2.4          Tender Agreement dated as of September 30, 1998 by and among 
                 Logica Inc., Logica Acquisition Corp., Carnegie Group, Inc. and
                 Mark S. Fox, Tressa S. Fox and Tressa S. Fox in Trust for Jacob
                 Fox

    2.5          Tender Agreement dated as of September 30, 1998 by and among 
                 Logica Inc., Logica Acquisition Corp., Carnegie Group, Inc. and
                 Dennis Yablonsky and Veronica Yablonsky


    2.6          Tender Agreement dated as of September 30, 1998 by and among 
                 Logica Inc., Logica Acquisition Corp., Carnegie Group, Inc. and
                 John W. Manzetti

   99.1          Press Release issued on October 1, 1998 by Carnegie Group, Inc.

                                       4

<PAGE>
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
                          AGREEMENT AND PLAN OF MERGER
 
                                     AMONG
 
                                  LOGICA INC.,
 
                            LOGICA ACQUISITION CORP.
 
                                      AND
 
                              CARNEGIE GROUP, INC.
 
                         DATED AS OF SEPTEMBER 30, 1998
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>
 
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                            PAGE
                                                                            ----
 <C>    <S>                                                                 <C>
 ARTICLE I--The Offer......................................................   1
   1.1  The Offer.........................................................    1
   1.2  Company Actions...................................................    2
   1.3  Board Representation..............................................    3
 ARTICLE II--The Merger....................................................   4
   2.1  The Merger........................................................    4
   2.2  Effective Time....................................................    4
   2.3  Closing...........................................................    4
   2.4  Directors and Officers............................................    4
   2.5  Stockholders' Meeting.............................................    4
   2.6  Merger Without Meeting of Stockholders............................    5
   2.7  Conversion of Securities..........................................    5
   2.8  Company Stock Options and Related Matters.........................    5
   2.9  Taking of Necessary Action; Further Action........................    6
 ARTICLE III--Payment for Shares; Dissenting Shares........................   6
   3.1  Payment for Shares of Company Common Stock........................    6
   3.2  Dissenting Shares.................................................    7
 ARTICLE IV--Representations and Warranties of Parent and Acquisition Sub..   8
   4.1  Organization......................................................    8
   4.2  Authorization; Validity of Agreement; Necessary Action............    8
   4.3  Consents and Approvals; No Violations.............................    9
   4.4  Information in Proxy Statement....................................    9
   4.5  Required Financing................................................    9
 ARTICLE V--Representations and Warranties of the Company..................   9
   5.1  Existence; Good Standing; Authority; Compliance With Law..........    9
   5.2  Authorization, Validity and Effect of Agreements..................   10
   5.3  Capitalization....................................................   10
   5.4  Subsidiaries......................................................   11
   5.5  Other Interests...................................................   11
   5.6  No Violation; Consents............................................   11
   5.7  SEC Documents.....................................................   12
   5.8  Litigation........................................................   12
   5.9  Absence of Certain Changes........................................   12
   5.10 Taxes.............................................................   13
   5.11 Books and Records.................................................   13
   5.12 Properties........................................................   14
   5.13 Intellectual Property.............................................   15
   5.14 Environmental Matters.............................................   18
   5.15 Employee Benefit Plans............................................   18
   5.16 Labor Matters.....................................................   20
   5.17 No Brokers........................................................   20
   5.18 Opinion of Financial Advisors.....................................   21
   5.19 Related Party Transactions........................................   21
   5.20 Potential Conflicts of Interest...................................   21
   5.21 Contracts and Commitments.........................................   21
   5.22 Year 2000.........................................................   22
</TABLE>
 
                                      (i)
<PAGE>
 
<TABLE>
<CAPTION>
                                                                            PAGE
                                                                            ----
 <C>    <S>                                                                 <C>
   5.23 Vote Required for Merger.........................................    22
   5.24 Suppliers and Customers..........................................    22
   5.25 Insurance........................................................    22
   5.26 Disclosure.......................................................    23
   5.27 Definition of the Company's Knowledge............................    23
 ARTICLE VI--Conduct of Business Pending the Merger.......................   23
   6.1  Conduct of Business by the Company...............................    23
 ARTICLE VII--Additional Agreements.......................................   25
   7.1  Other Filings....................................................    25
   7.2  Additional Agreements............................................    25
   7.3  Fees and Expenses................................................    25
   7.4  No Solicitations.................................................    25
   7.5  Officers' and Directors' Indemnification.........................    26
   7.6  Access to Information; Confidentiality...........................    27
   7.7  Financial and Other Statements...................................    27
   7.8  Right to Board Materials.........................................    27
   7.9  Advice of Change.................................................    28
   7.10 Public Announcements.............................................    28
 ARTICLE VIII--Conditions to the Merger...................................   29
   8.1  Conditions to the Obligations of Each Party to Effect the Merger.    29
 ARTICLE IX--Termination, Amendment and Waiver............................   29
   9.1  Termination......................................................    29
   9.2  Effect of Termination............................................    30
   9.3  Amendment........................................................    31
   9.4  Extension; Waiver................................................    31
 ARTICLE X--General Provisions............................................   31
  10.1  Notices..........................................................    31
  10.2  Interpretation...................................................    32
  10.3         Non-Survival of Representations, Warranties, Covenants and
         Agreements......................................................    32
  10.4  Miscellaneous....................................................    32
  10.5  Assignment.......................................................    32
  10.6  Severability.....................................................    32
  10.7  Choice of Law/Consent to Jurisdiction............................    32
  10.8  Counterparts.....................................................    33
  10.9  No Agreement Until Executed......................................    33
 ANNEX A..................................................................   35
</TABLE>
 
                                      (ii)
<PAGE>
 
                             SCHEDULES AND EXHIBITS
 
<TABLE>
<CAPTION>
 SCHEDULE         TITLE
 --------         -----
 <C>              <S>
 Schedule 4.3     Exceptions to Parent's Representations
 Schedule 5.1(c)  Licenses, Permits and Authorizations
 Schedule 5.1(d)  Organizational Documents
 Schedule 5.3     Options
 Schedule 5.4     Subsidiaries
 Schedule 5.5     Other Interests
 Schedule 5.6     Third Party Consents
 Schedule 5.8     Litigation
 Schedule 5.10    Taxes
 Schedule 5.12    Properties
 Schedule 5.13(a) Trademarks, Patents and Copyrights
 Schedule 5.13(b) Royalties
 Schedule 5.13(j) Transfers of Intellectual Property Rights
 Schedule 5.15    Employee Benefit Plans
 Schedule 5.19    Related Party Transactions
 Schedule 5.20    Conflicts of Interest
 Schedule 5.21    Contracts and Commitments
 Schedule 5.22    Year 2000 Compliance
 Schedule 5.24    Changes with Respect to Suppliers and Customers
 Schedule 5.25    Insurance
 Schedule 5.27    Definition of Knowledge
 Schedule 6.1(c)  Matters Affecting Assets
 Schedule 6.1(d)  Matters Affecting Indebtedness
<CAPTION>
 EXHIBIT
 -------
 <C>              <S>
 A                Form of Option Termination Agreement
</TABLE>
 
                                     (iii)
<PAGE>
 
                         AGREEMENT AND PLAN OF MERGER
 
  Agreement and Plan of Merger (the "Agreement"), dated as of September 30,
1998, by and among Logica Inc., a Delaware corporation ("Parent"), Logica
Acquisition Corp., a Delaware corporation and a wholly-owned subsidiary of
Parent ("Acquisition Sub"), and Carnegie Group, Inc., a Delaware corporation
(the "Company").
 
                                   Recitals
 
  Whereas, the Board of Directors of each of Parent, Acquisition Sub and the
Company has approved, and deems it advisable and in the best interests of its
respective stockholders to consummate, the acquisition of the Company by
Parent upon the terms and subject to the conditions set forth herein; and
 
  Whereas, as a condition to the willingness of Parent and Acquisition Sub to
enter into this Agreement, certain stockholders of the Company (the "Principal
Stockholders") have entered into Tender Agreements, dated as of the date
hereof, with Parent and Acquisition Sub (the "Tender Agreements"), pursuant to
which each Principal Stockholder has agreed, among other things, to tender
pursuant to the Offer (as hereinafter defined) all shares (the "Shares") of
common stock, par value $.01 per share, of the Company (the "Company Common
Stock") owned by such Principal Stockholder, all upon the terms and conditions
set forth in such Tender Agreements;
 
  Now, Therefore, in consideration of the mutual covenants and agreements set
forth herein, Parent, Acquisition Sub and the Company hereby agree as follows:
 
                                   ARTICLE I
 
                                   The Offer
 
  1.1 The Offer.
 
  (a) Provided that this Agreement shall not have been terminated in
accordance with its terms, Acquisition Sub shall, as soon as practicable after
the date hereof, (but in no event later than five business days following the
public announcement of the Offer), commence (within the meaning of Rule 14d-2
under the Securities Exchange Act of 1934, as amended, and the rules and
regulations thereunder (the "Exchange Act")) an offer to purchase (as such
offer to purchase may be amended in accordance with the terms of this
Agreement, the "Offer") all of the issued and outstanding Shares at a price of
not less than $5.00 per Share, net to the seller in cash (less applicable
withholding taxes, if any) (such price, or such other price per Share as may
be paid in the Offer, being referred to herein as the "Offer Price"). After
the commencement of the Offer, the Offer and the obligation of Acquisition Sub
to accept for payment and pay for Shares tendered pursuant to the Offer shall
be subject only to the conditions set forth in Annex A hereto and the
condition that there be validly tendered and not withdrawn prior to the
expiration of the Offer at least a majority of the Shares on a fully diluted
basis (the "Minimum Percentage"). Parent and Acquisition Sub expressly reserve
the right to waive any condition set forth in Annex A, to change the form or
amount payable per Share in the Offer (including the Offer Price) and to make
any other changes in the terms and conditions of the Offer; provided, however,
that without the prior written consent of the Company, Parent shall not amend,
or permit to be amended, the Offer to (i) decrease the Offer Price, (ii)
change the consideration into a form other than cash, (iii) amend (other than
to waive) the Minimum Condition or the other conditions set forth in Annex A,
or (iv) reduce the maximum number of Shares to be purchased in the Offer;
provided further, however, that if on the initial scheduled expiration date of
the Offer, which shall be 20 business days after the date the Offer is
commenced, all conditions to the Offer shall not have been satisfied or
waived, Acquisition Sub may, from time to time, in its sole discretion, extend
the expiration date, provided, however, that such expiration date, as
extended, shall be no later than December 31, 1998. Acquisition Sub shall, on
the terms and subject to the prior satisfaction or waiver of the conditions of
the Offer, accept for payment and
 
                                      A-1
<PAGE>
 
pay for Shares tendered as soon as it is legally permitted to do so under
applicable law. Notwithstanding the foregoing, if, immediately prior to the
initial expiration date of the Offer (as it may be extended), the Shares
tendered and not withdrawn pursuant to the Offer equal less than 90% of the
Shares on a fully diluted basis, Acquisition Sub may, in its sole discretion,
extend the Offer for a period not to exceed 10 business days, notwithstanding
that all conditions to the Offer are satisfied as of such expiration date of
the Offer; provided, however, that prior to such extension the Acquisition Sub
shall waive its right to assert any of the conditions set forth in Annex A
other than the Minimum Condition. The Offer shall be made by means of an offer
to purchase (the "Offer to Purchase") containing the terms set forth in this
Agreement, the Minimum Percentage and the conditions set forth in Annex A
hereto.
 
  (b) As soon as practicable after the date the Offer is commenced, Parent and
Acquisition Sub shall file or cause to be filed with the Securities and
Exchange Commission (the "Commission") a Tender Offer Statement on Schedule
14D-1 (together with all amendments or supplements thereto, the "Schedule 14D-
1"), which shall include as an exhibit or incorporate by reference, the Offer
to Purchase (or portions thereof) and forms of the related letter of
transmittal and summary advertisement (such Schedule 14D-1, the Offer to
Purchase and related documents, together with all amendments or supplements
thereto, are collectively referred to herein as the "Offer Documents"). The
Offer Documents will comply in all material respects with the provisions of
applicable federal securities laws and, on the date filed with the Commission
and on the date first published, sent or given to the Company's stockholders,
shall not contain any untrue statement of a material fact or omit to state any
material fact required to be stated therein or necessary in order to make the
statements therein, in light of the circumstances under which they were made,
not misleading, except that no representation is made by Parent or Acquisition
Sub with respect to information furnished by the Company for inclusion in the
Offer Documents. The information supplied in writing by the Company for
inclusion in the Offer Documents and by Parent or Acquisition Sub for
inclusion in the Schedule 14D-9 (as hereinafter defined) will not contain any
untrue statement of a material fact or omit to state any material fact
required to be stated therein or necessary in order to make the statements
therein, in light of the circumstances under which they were made, not
misleading. Parent, Acquisition Sub and the Company each agrees promptly to
amend or supplement any information provided by it for use in the Offer
Documents if and to the extent that such information shall have become false
or misleading in any material respect or as otherwise required by applicable
federal securities laws, and Parent and Acquisition Sub each further agrees to
take all steps necessary to cause the Offer Documents, as so amended or
supplemented, to be filed with the Commission and disseminated to the holders
of Shares, in each case as and to the extent required by applicable federal
securities laws. The Company and its counsel shall be given a reasonable
opportunity to review and comment upon the Offer Documents and all amendments
and supplements thereto prior to the filing thereof with the Commission or the
dissemination thereof to the holders of Shares.
 
  1.2 Company Actions.
 
  (a) The Company hereby approves of and consents to the Offer and represents
and warrants that the Board of Directors of the Company (the "Company Board"),
at a meeting duly called and held, has unanimously (i) determined that this
Agreement and the transactions contemplated hereby, including the Offer and
the Merger taken together, are fair to and in the best interests of the
Company and its stockholders, (ii) approved this Agreement, the Tender
Agreements and the transactions contemplated hereby and thereby, including,
without limitation, the Merger (as hereinafter defined) and the Offer
(collectively, the "Transactions"), and such approval constitutes approval of
the Transactions for purposes of Section 203 of the Delaware General
Corporation Law, as amended (the "DGCL"), and (iii) resolved to recommend that
the stockholders of the Company accept the Offer, tender their Shares
thereunder to Acquisition Sub and, if required by applicable law, approve and
adopt this Agreement and the Merger, subject to the Company's rights under
Section 7.4 hereof.
 
  (b) Concurrently with the commencement of the Offer and the filing by or on
behalf of Parent and Acquisition Sub of the Schedule 14D-1, the Company shall
file with the Commission and disseminate to the holders of Shares a
Solicitation/Recommendation Statement on Schedule 14D-9 (together with all
amendments or supplements thereto, the "Schedule 14D-9"), containing (among
other things) the recommendation referred
 
                                      A-2
<PAGE>
 
to in clause (iii) of Section 1.2(a) hereof, subject to the Company's rights
under Section 7.4 hereof. The Schedule 14D-9 will comply in all material
respects with the provisions of applicable federal securities laws and, on the
date filed with the Commission and on the date first published, sent or given
to the Company's stockholders, shall not contain any untrue statement of a
material fact or omit to state any material fact required to be stated therein
or necessary in order to make the statements therein, in light of the
circumstances under which they were made, not misleading, except that no
representation is made by the Company with respect to information furnished by
Parent or Acquisition Sub for inclusion in the Schedule 14D-9. The Company,
Parent and Acquisition Sub each agrees promptly to correct, amend or
supplement any information provided by it for use in the Schedule 14D-9 if and
to the extent that such information shall have become false or misleading in
any material respect or as otherwise required by applicable federal securities
laws, and the Company further agrees to take all steps necessary to cause the
Schedule 14D-9, as so amended or supplemented, to be filed with the Commission
and disseminated to the holders of Shares, in each case as and to the extent
required by applicable federal securities laws. Parent, Acquisition Sub and
their counsel shall be given a reasonable opportunity to review and comment
upon the Schedule 14D-9 and all amendments and supplements thereto prior to
the filing thereof with the Commission or the dissemination thereof to the
holders of Shares.
 
  (c) In connection with the Offer, the Company shall promptly furnish Parent
and Acquisition Sub with a list of the names and addresses of all record
holders of Shares and security position listings of Shares, each as of a
recent date, and shall promptly furnish Parent and Acquisition Sub with such
additional information, including updated lists of the stockholders of the
Company, lists of the holders of the Company's outstanding stock options,
mailing labels, security position listings and such other assistance and
information as Parent or Acquisition Sub or their agents may reasonably
request. Subject to the requirements of applicable law, and except for such
steps as are necessary to disseminate the Offer Documents and any other
documents necessary to consummate the Offer, each of Parent and Acquisition
Sub shall use the information described in the preceding sentence only in
connection with the Offer, and if this Agreement is terminated in accordance
with its terms, each of them shall, upon the Company's request, deliver to the
Company all such information and any copies or extracts thereof then in its
possession or under its control.
 
  (d) The Company represents and warrants that it has been advised, as of the
date hereof, that all of its directors and executive officers intend to tender
their Shares pursuant to the Offer.
 
  1.3 Board Representation. Promptly upon the purchase of Shares pursuant to
the Offer, Parent shall be entitled to designate such number of directors,
rounded up to the next whole number, on the Company Board as is equal to the
product of (a) the total number of directors on the Company Board (after
giving effect to the directors designated by Parent pursuant to this sentence)
and (b) the percentage that the total votes represented by such number of
Shares in the election of directors of the Company so purchased bears to the
total votes represented by the number of Shares outstanding. In furtherance
thereof, the Company shall, upon request by Parent, promptly increase the size
of the Company Board and/or exercise its best efforts to secure the
resignations of such number of its directors as is necessary to enable
Parent's designees to be elected to the Company Board and shall take all
actions to cause Parent's designees to be so elected to the Company Board. At
such time, the Company shall also cause persons designated by Parent to
constitute at least the same percentage (rounded up to the next whole number)
as is on the Company Board of (i) each committee of the Company Board, (ii)
each board of directors (or similar body) of each Company Subsidiary (as
hereinafter defined) and (iii) each committee (or similar body) of each such
board. The Company shall take, at its expense, all action required pursuant to
Section 14(f) and Rule 14f-1 of the Exchange Act in order to fulfill its
obligations under this Section 1.3 and shall include in the Schedule 14D-9 to
its stockholders such information with respect to the Company and its officers
and directors as is required by such Section 14(f) and Rule 14f-1 in order to
fulfill its obligations under this Section 1.3. Parent will supply to the
Company in writing and be solely responsible for any information with respect
to itself and its nominees, officers, directors and affiliates required by
such Section 14(f) and Rule 14f-1. The provisions of this Section 1.3 are in
addition to and shall not limit any rights which Acquisition Sub, Parent or
any of their affiliates may have as a holder or beneficial owner of Shares as
a matter of law with respect to the election of directors or otherwise. In the
event that Parent's designees are elected to the Company Board,
 
                                      A-3
<PAGE>
 
until the Effective Time, the Company Board shall have at least three
directors who are directors on the date hereof (the "Independent Directors"),
provided that, in such event, if the number of Independent Directors shall be
reduced below three for any reason whatsoever, any remaining Independent
Directors (or Independent Director, if there be only one remaining) shall be
entitled to designate persons to fill such vacancies who shall be deemed to be
Independent Directors for purposes of this Agreement or, if no Independent
Director then remains, the other directors shall designate three persons to
fill such vacancies who shall not be stockholders, affiliates or associates of
Parent or Acquisition Sub and such persons shall be deemed to be Independent
Directors for purposes of this Agreement. Notwithstanding anything in this
Agreement to the contrary, in the event that Parent's designees are elected to
the Company Board, after the acceptance for payment of Shares pursuant to the
Offer and prior to the Effective Time (as hereinafter defined), the
affirmative vote of a majority of the Independent Directors shall be required
to (a) amend or terminate this Agreement by the Company, (b) exercise or waive
any of the Company's rights, benefits or remedies hereunder, or (c) extend the
time for performance of Parent's and Acquisition Sub's respective obligations
hereunder.
 
                                  ARTICLE II
 
                                  The Merger
 
  2.1 The Merger. Subject to the terms and conditions of this Agreement, at
the Effective Time (as hereinafter defined), the Company and Acquisition Sub
shall consummate a merger (the "Merger") pursuant to which (a) Acquisition Sub
shall be merged with and into the Company and the separate corporate existence
of Acquisition Sub shall thereupon cease, (b) the Company shall be the
successor or 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 Delaware, and (c) the separate corporate existence
of the Company with all its rights, privileges, immunities, powers and
franchises shall continue unaffected by the Merger. The Certificate of
Incorporation of Acquisition Sub (the "Certificate of Incorporation"), as in
effect immediately prior to the Effective Time, shall be the Certificate of
Incorporation of the Surviving Corporation until thereafter amended as
provided by law and such Certificate of Incorporation, and (y) the Bylaws of
Acquisition Sub (the "Bylaws"), as in effect immediately prior to the
Effective Time, shall be the Bylaws of the Surviving Corporation until
thereafter amended as provided by law, by such Certificate of Incorporation or
by such Bylaws. The Merger shall have the effects specified in the DGCL.
 
  2.2 Effective Time. As promptly as practicable after all of the conditions
set forth in Article VIII shall have been satisfied or, if permissible, waived
by the party entitled to the benefit of the same, Acquisition Sub and the
Company shall duly execute and file a certificate of merger (the "Certificate
of Merger") with the Secretary of State of the State of Delaware in accordance
with the DGCL. The Merger shall become effective at such time as the
Certificate of Merger is filed with the Secretary of State of the State of
Delaware or at such later time as is specified in the Certificate of Merger
(the "Effective Time").
 
  2.3 Closing. The closing of the Merger (the "Closing") shall take place at
such time and on a date to be specified by the parties, which shall be no
later than the second business day after satisfaction or waiver of all of the
conditions set forth in Article VIII hereof (the "Closing Date"), at the
offices of Goodwin, Procter & Hoar llp, Exchange Place, Boston, Massachusetts
02109, unless another date or place is agreed to by the parties hereto.
 
  2.4 Directors and Officers. The directors and officers of Acquisition Sub
immediately prior to the Effective Time shall be the initial directors and
officers of the Surviving Corporation, each to hold office in accordance with
the Certificate of Incorporation and Bylaws of the Surviving Corporation.
 
  2.5 Stockholders' Meeting.
 
  (a) If required by applicable law in order to consummate the Merger, the
Company, acting through the Company Board, shall, in accordance with
applicable law:
 
                                      A-4
<PAGE>
 
    (i) duly call, give notice of, convene and hold a special meeting of its
  stockholders (the "Special Meeting") as promptly as practicable following
  the acceptance for payment and purchase of Shares by Acquisition Sub
  pursuant to the Offer for the purpose of considering and taking action upon
  the approval of the Merger and the adoption of this Agreement;
 
    (ii) prepare and file with the Commission a preliminary proxy or
  information statement relating to the Merger and this Agreement and use its
  best efforts (x) to obtain and furnish the information required to be
  included by the Commission in the Proxy Statement (as hereinafter defined)
  and, after consultation with Parent, to respond promptly to any comments
  made by the Commission with respect to the preliminary proxy or information
  statement and cause a definitive proxy or information statement, including
  any amendment or supplement thereto (the "Proxy Statement"), to be mailed
  to its stockholders, provided that no amendment or supplement to the Proxy
  Statement will be made by the Company without the consultation and approval
  of Parent and its counsel, and to obtain the necessary approvals of the
  Merger and this Agreement by its stockholders; and
 
    (iii) include in the Proxy Statement the recommendation of the Company
  Board that stockholders of the Company vote in favor of the approval of the
  Merger and the adoption of this Agreement.
 
  2.6 Merger Without Meeting of Stockholders. Notwithstanding Section 2.5
hereof, in the event that Parent, Acquisition Sub or any other Parent
Subsidiary (as hereinafter defined) shall acquire at least 90% of the
outstanding shares of each class of capital stock of the Company, pursuant to
the Offer or otherwise, the parties hereto shall, at the request of Parent and
subject to Article VIII hereof, take all necessary and appropriate action to
cause the Merger to become effective as soon as practicable after such
acquisition, without a meeting of stockholders of the Company, in accordance
with Section 253 of the DGCL.
 
  2.7 Conversion of Securities. At the Effective Time, by virtue of the Merger
and without any action on the part of Acquisition Sub, the Company or the
holders of any Shares:
 
  (a) Each issued and outstanding Share held by the Company as a treasury
Share or held by any direct or indirect Company Subsidiary and each issued and
outstanding Share owned by Parent, Acquisition Sub or any other direct or
indirect Parent Subsidiary immediately prior to the Effective Time, shall be
canceled and retired and cease to exist without any conversion thereof and no
payment or distribution shall be made with respect thereto;
 
  (b) Each Share issued and outstanding immediately prior to the Effective
Time, other than (i) those Shares referred to in Section 2.7(a) and (ii)
Dissenting Shares (as hereinafter defined), shall be cancelled and shall be
converted automatically into and represent the right to receive the kind and
amount of consideration (without interest) equal to the kind and amount of
consideration paid per Share pursuant to the Offer (the "Merger
Consideration") payable, without interest, to the holder of such Share upon
surrender, in the manner provided in Section 3.1, of the Certificate (as
hereinafter defined) that formerly evidenced such Share. All of the
Certificates evidencing Shares, by virtue of the Merger and without any action
on the part of the stockholders of the Company or the Company, shall be deemed
to be no longer outstanding, shall not be transferable on the books of the
Surviving Corporation, and shall represent solely the right to receive the
amount set forth in this Section 2.7(b); and
 
  (c) The shares of common stock, par value $.01 per share, of Acquisition Sub
issued and outstanding immediately prior to the Effective Time shall be
converted into and exchangeable for, in the aggregate, One Thousand (1,000)
validly issued, fully paid and non-assessable shares of common stock, par
value $.01 per share, of the Surviving Corporation, which shall constitute all
of the issued and outstanding shares of common stock of the Surviving
Corporation immediately following the Effective Time.
 
  2.8 Company Stock Options and Related Matters.
 
  (a) Each option (collectively, the "Options") granted under the Company's
1989 Stock Option Plan (the "1989 Plan"), 1995 Stock Option Plan (the "1995
Plan") and Long-Term Incentive Stock Option Plan (the
 
                                      A-5
<PAGE>
 
"Long-Term Plan" and, together with the 1989 Plan and the 1995 Plan, the
"Stock Option Plans"), which is outstanding (whether or not currently
exercisable) as of immediately prior to the Effective Time and which has not
been exercised or canceled prior thereto shall, at the Effective Time, be
cancelled and upon the surrender and cancellation of the option agreement
representing such Option and delivery of an Option Termination (as hereinafter
defined), Parent shall (x) pay to the holder thereof cash in an amount equal
to the product of (i) the number of Shares provided for in such Option and
(ii) the excess, if any, of the Merger Consideration over the exercise price
per Share provided for in such Option, which cash payment shall be treated as
compensation and shall be net of any applicable federal or state withholding
tax (the "Option Consideration"). The Company shall take all actions necessary
to ensure that (i) all Options, to the extent not exercised prior to the
Effective Time, shall terminate and be cancelled as of the Effective Time and
thereafter be of no further force or effect, (ii) no Options are granted after
the date of this Agreement, and (iii) at the Effective Time, the Stock Option
Plans and all Options issued thereunder shall terminate. The Company shall
obtain, prior to the expiration of the Offer, the consent, in the form
attached as Exhibit A hereto, from each holder of an Option providing for,
among other things, the termination of such Option (each such document, an
"Option Termination").
 
  (b) Except as may be otherwise agreed to by Parent or Acquisition Sub and
the Company, the Stock Option Plans and the Company's 1995 Employee Stock
Purchase Plan (the "Purchase Plan") shall terminate as of the Effective Time
and the provisions in any other plan, program or arrangement providing for the
issuance or grant of any other interest in respect of the capital stock of the
Company or any of its Subsidiaries shall be deleted as of the Effective Time
and no holder of Options or any participant in any Stock Option Plan or the
Purchase Plan or any other plans, programs or arrangements shall have any
right thereunder to acquire any equity securities of the Company, the
Surviving Corporation or any Subsidiary thereof. In connection with the
foregoing, the parties hereby agree that participants in the Purchase Plan
will not be entitled to purchase any shares under the Purchase Plan for the
period or periods beginning on or after October 1, 1998 and ending on or
before the Effective Time and, after the Effective Time, any amounts which
have been withheld from participants under the Purchase Plan will be returned
without interest thereto to such participants.
 
  2.9 Taking of Necessary Action; Further Action. Each of Parent, Acquisition
Sub and the Company shall use its best efforts to take all such action as may
be necessary or appropriate in order to effectuate the Merger under the DGCL
as promptly as practicable. If at any time after the Effective Time any
further action is necessary or desirable to carry out the purposes of this
Agreement and to vest the Surviving Corporation with full right, title and
possession to all assets, property, rights, privileges, powers and franchises
of both of the Company and Acquisition Sub, the officers of such corporations
are fully authorized in the name of their corporation or otherwise to take,
and shall take, all such lawful and necessary action.
 
                                  ARTICLE III
 
                     Payment for Shares; Dissenting Shares
 
  3.1 Payment for Shares of Company Common Stock.
 
  (a) Prior to the Effective Time, Parent shall designate a bank or trust
company to act as agent for the holders of the Shares in connection with the
Merger (the "Paying Agent") for purposes of effecting the exchange for the
Merger Consideration of Certificates which, prior to the Effective Time,
represented Shares entitled to receive the Merger Consideration pursuant to
Section 2.7(b).
 
  (b) Immediately prior to the Effective Time, Parent or Acquisition Sub shall
deposit in trust with the Paying Agent cash in an aggregate amount equal to
the product of (i) the number of Shares issued and outstanding immediately
prior to the Effective Time (other than shares owned by, or issuable upon
conversion of other securities to, the Company, Parent, Acquisition Sub or any
direct or indirect Parent Subsidiary (as hereinafter defined) or the Company
and Shares known immediately prior to the Effective Time to be Dissenting
Shares) and (ii) the Merger Consideration (such aggregate amount being
hereinafter referred to as the "Payment Fund").
 
                                      A-6
<PAGE>
 
The Paying Agent shall, pursuant to irrevocable instructions, make the
payments referred to in Section 2.7(b) out of the Payment Fund.
 
  (c) Promptly after the Effective Time, the Surviving Corporation shall cause
the Paying Agent to mail to each person who was a record holder of an
outstanding certificate or certificates which immediately prior to the
Effective Time represented Shares (the "Certificates"), whose Shares were
converted pursuant to Section 2.7(b) into the right to receive the Merger
Consideration, a letter of transmittal (which shall specify that delivery
shall be effected and risk of loss and title to Certificates shall pass, only
upon proper delivery of the Certificates to the Paying Agent and shall be in
such form and have such other provisions as Parent and the Company may
reasonably specify) and instructions for its use in surrendering Certificates
in exchange for payment of the Merger Consideration. Upon the surrender to the
Paying Agent of such a Certificate, together with such duly executed letter of
transmittal and any other required documents, the holder thereof shall be
paid, without interest thereon, the Merger Consideration to which such holder
is entitled hereunder, and such Certificate shall forthwith be canceled. Until
so surrendered, each such Certificate shall, after the Effective Time,
represent solely the right to receive the Merger Consideration into which the
Shares such Certificate theretofore represented shall have been converted
pursuant to Section 2.7(b), and the holder thereof shall not be entitled to be
paid any cash to which such holder otherwise would be entitled. In case any
payment pursuant to this Section 3.1 is to be made to a holder other than the
registered holder of a surrendered Certificate, it shall be a condition of
such payment that the Certificate so surrendered shall be properly endorsed or
otherwise in proper form for transfer and that the person requesting such
exchange shall pay to the Paying Agent any transfer or other taxes required by
reason of the payment of such cash to a person other than the registered
holder of the Certificate surrendered, or that such person shall establish to
the satisfaction of the Paying Agent that such tax has been paid or is not
applicable.
 
  (d) Promptly following the date which is six months after the Effective
Time, the Paying Agent shall return to the Surviving Corporation all cash,
certificates and other instruments in its possession that constitute any
portion of the Payment Fund (including, without limitation, all interest and
other income received by the Paying Agent in respect of all funds made
available to it), and the Paying Agent's duties shall terminate. Thereafter,
each holder of a Certificate shall be entitled to look to the Surviving
Corporation (subject to applicable abandoned property, escheat and similar
laws) only as a general creditor thereof with respect to any Merger
Consideration, without interest, that may be payable upon due surrender of the
Certificate or Certificates held by them. Notwithstanding the foregoing,
neither the Paying Agent nor any party hereto shall be liable to a holder of
Certificates that prior to the Effective Time evidenced Shares for any Merger
Consideration delivered pursuant hereto to a public official pursuant to
applicable abandoned property, escheat or other similar laws.
 
  (e) At the Effective Time, the Company Common Stock transfer books shall be
closed and no transfer of Shares shall be made thereafter. If, after the
Effective Time, Certificates are presented to the Surviving Corporation or the
Paying Agent, they shall be canceled and exchanged for the Merger
Consideration as provided in Section 2.7(b), subject to applicable law in the
case of Dissenting Shares.
 
  (f) 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 Parent or the
Surviving Corporation, upon the posting by such person of a bond in such
amount as Parent or the Surviving Corporation may reasonably direct as
indemnity against any claim that may be made against it with respect to such
Certificate, the Paying Agent will issue in exchange for such lost, stolen or
destroyed Certificate, the cash representing the Merger Consideration
deliverable in respect thereof pursuant to this Agreement.
 
  3.2 Dissenting Shares.
 
  (a) Any Shares outstanding immediately prior to the Effective Time as to
which the holder thereof shall have not voted in favor of the Merger or
consented thereto in writing and as to which the holder thereof shall have
validly exercised such holder's appraisal rights, if any, under Section 262 of
the DGCL ("Dissenting Shares") shall not, after the Effective Time, be
entitled to vote for any purpose or be entitled to the payment of dividends or
other distributions (except dividends or other distributions payable to
stockholders of record prior
 
                                      A-7
<PAGE>
 
to the Effective Time), nor shall such Dissenting Shares be converted into the
right to receive the Merger Consideration hereunder. Such holders of
Dissenting Shares duly making demand for appraisal (hereinafter referred to as
"Dissenting Stockholders") shall be entitled to receive payment of the
appraised value of such Dissenting Shares in accordance with the provisions of
such Section 262 of the DGCL, except that all Shares held by stockholders who
shall fail to perfect, or shall have effectively withdrawn or lost, such
stockholders' right to appraisal of such Shares under Section 262 of the DGCL
shall thereupon be deemed to have been converted into and to have become
exchangeable for, as of the Effective Time, the right to receive the Merger
Consideration, without any interest thereon. The Company shall give Parent
prompt notice of any demands for appraisal received by the Company,
withdrawals of such demands and any other instrument served pursuant to
Section 262 of the DGCL and received by the Company, and Parent shall be
entitled to direct all negotiations and proceedings with respect to demands
for appraisal under the DGCL. The Company shall not, except with the prior
written consent of Parent, make any payment with respect to any demands for
appraisal, or settle or offer to settle, any such demands.
 
  (b) Each Dissenting Stockholder who becomes entitled under the DGCL to
payment for Dissenting Shares shall receive payment therefor after the
Effective Time from the Surviving Corporation (but only after the amount
thereof shall have been agreed upon or finally determined pursuant to the
DGCL) and such Shares shall be canceled.
 
                                  ARTICLE IV
 
                       Representations and Warranties of
                          Parent and Acquisition Sub
 
  Parent and Acquisition Sub jointly and severally hereby represent and
warrant to the Company as follows:
 
  4.1 Organization. Each of Parent and Acquisition Sub is a corporation duly
organized, validly existing and in good standing under the laws of the State
of Delaware and has all requisite corporate or other power and authority and
all necessary governmental approvals to own, lease and operate its properties
and to carry on its business as now being conducted, except where the failure
to be so organized, existing and in good standing or to have such power,
authority, and governmental approvals would not have a material adverse effect
on the business, results of operations and financial condition of Parent and
its Subsidiaries (the "Parent Subsidiaries") taken as a whole (a "Parent
Material Adverse Effect"). Parent and each of the Parent Subsidiaries is duly
qualified or licensed to do business and in good standing in each jurisdiction
in which the property owned, leased or operated by it or the nature of the
business conducted by it makes such qualification or licensing necessary,
except where the failure to be so duly qualified or licensed and in good
standing would not, individually or in the aggregate, have a Parent Material
Adverse Effect.
 
  4.2 Authorization; Validity of Agreement; Necessary Action. Each of Parent
and Acquisition Sub has full corporate power and authority to execute and
deliver this Agreement and to consummate the Transactions. The execution,
delivery and performance by Parent and Acquisition Sub of this Agreement and
the consummation of the Transactions have been duly authorized by the Board of
Directors of Parent (the "Parent Board") and the Board of Directors of
Acquisition Sub (the "Acquisition Sub Board") and by Parent as the sole
stockholder of Acquisition Sub, and except as set forth in Section 4.3 of the
schedule attached to this Agreement setting forth exceptions to Parent's and
Acquisition Sub's representations and warranties set forth herein, no other
corporate action on the part of Parent and Acquisition Sub is necessary to
authorize the execution and delivery by Parent and Acquisition Sub of this
Agreement and the consummation of the Transactions. This Agreement has been
duly executed and delivered by Parent and Acquisition Sub and, assuming due
and valid authorization, execution and delivery hereof by the Company, is a
valid and binding obligation of each of Parent and Acquisition Sub, as the
case may be, enforceable against each of them in accordance with its terms,
subject to applicable bankruptcy, insolvency, moratorium or other similar laws
relating to creditors' rights and general principles of equity.
 
                                      A-8
<PAGE>
 
  4.3 Consents and Approvals; No Violations. Except as set forth in Section
4.3 of the schedule attached to this Agreement setting forth exceptions to
Parent's and Acquisition Sub's representations and warranties set forth herein
and except for filings, permits, authorizations, consents and approvals as may
be required under, and other applicable requirements of, the Exchange Act, the
HSR Act (as hereinafter defined), state securities or state "Blue Sky" laws
and the DGCL, none of the execution, delivery or performance of this Agreement
by Parent or Acquisition Sub, the consummation by Parent or Acquisition Sub of
the Transactions or compliance by Parent or Acquisition Sub with any of the
provisions hereof will (i) conflict with or result in any breach of any
provision of the respective certificates of incorporation or bylaws of Parent
or Acquisition Sub, (ii) require any filing with, or permit, authorization,
consent or approval of, any Governmental Entity (as hereinafter defined),
(iii) result in a violation or breach of, or constitute (with or without due
notice or lapse of time or both) a default (or give rise to any right of
termination, cancellation or acceleration) under, any of the terms, conditions
or provisions of any note, bond, mortgage, indenture, lease, license,
contract, agreement or other instrument or obligation to which Parent or any
of the Parent Subsidiaries is a party or by which any of them or any of their
respective properties or assets may be bound, or (iv) violate any order, writ,
injunction, decree, statute, rule or regulation applicable to Parent, any of
the Parent Subsidiaries or any of their properties or assets, excluding from
the foregoing clauses (ii), (iii) and (iv) such violations, breaches or
defaults which would not, individually or in the aggregate, have a Parent
Material Adverse Effect.
 
  4.4 Information in Proxy Statement. None of the information supplied by
Parent or Acquisition Sub specifically for inclusion or incorporation by
reference in the Proxy Statement will, as of the date mailed to the Company's
stockholders and at the time of any meeting of the Company's stockholders to
be held in connection with the Merger, contain any untrue statement of a
material fact or omit to state any material fact required to be stated therein
or necessary in order to make the statements therein, in light of the
circumstances under which they are made, not misleading.
 
  4.5 Required Financing. Parent PLC has or has available to it, and will make
available to Parent, all funds necessary to satisfy Parent's and Acquisition
Sub's obligations under this Agreement to purchase all outstanding Shares
pursuant to the Offer and the Merger.
 
                                   ARTICLE V
 
                 Representations and Warranties of the Company
 
  Except as set forth in the disclosure schedules delivered at or prior to the
execution hereof to Parent and Acquisition Sub, which shall refer to the
relevant Sections of this Agreement (the "Company Disclosure Schedule"), the
Company represents and warrants to Parent and Acquisition Sub as follows:
 
  5.1 Existence; Good Standing; Authority; Compliance With Law.
 
  (a) The Company is a corporation duly organized, validly existing and in
good standing under the laws of the State of Delaware. Except as set forth in
Section 5.1 of the Company Disclosure Schedule, the Company 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 licensed or qualified could not reasonably be expected to have a Company
Material Adverse Effect (as defined below). For purposes of this Agreement, a
Company Material Adverse Effect shall mean a material adverse effect on the
current business, results of operations or financial condition of the Company
and the Company Subsidiaries (as hereinafter defined) taken as a whole, other
than any actions, omissions, changes, events or effects that (i) are primarily
related to a general drop in stock prices in the United States or the United
Kingdom that are primarily due to political or economic turmoil or (ii) are
primarily related to or result from the announcement or pendency of the Offer
and/or the Merger, including disruptions to the Company's business or the
Company's Subsidiaries' businesses, and their respective employees, customers
and suppliers. Notwithstanding anything to the contrary
 
                                      A-9
<PAGE>
 
provided herein, fully diluted earnings per share (calculated in accordance
with generally accepted accounting principles consistently applied) of the
Company for the fiscal quarter ending September 30, 1998 of $0.00 or more
shall not be deemed to have a Company Material Adverse Effect. The Company has
all requisite corporate power and authority to own, operate, lease and
encumber its properties and carry on its business as now conducted.
 
  (b) Each of the Company Subsidiaries is a corporation duly incorporated or
organized, validly existing and in good standing under the laws of its
jurisdiction of incorporation or organization, has the corporate power and
authority to own its properties and to carry on its business as it is now
being conducted, and is duly qualified to do business and is in good standing
in each jurisdiction in which the ownership of its property or the conduct of
its business requires such qualification, except for jurisdictions in which
such failure to be so qualified or to be in good standing could not reasonably
be expected to have a Company Material Adverse Effect. None of the Company
Subsidiaries is a partnership, limited liability company or other entity other
than an entity organized as a corporation under the laws of any state of the
United States.
 
  (c) Neither the Company nor any of the Company Subsidiaries is in violation
of any order of any court, governmental authority or arbitration board or
tribunal, or any law, ordinance, governmental rule or regulation to which the
Company or any Company Subsidiary or any of their respective properties or
assets is subject, where such violation could have a Company Material Adverse
Effect. The Company and the Company Subsidiaries have obtained all licenses,
permits and other authorizations and have taken all actions required by
applicable law or governmental regulations in connection with their businesses
as now conducted, where the failure to obtain any such license, permit or
authorization or to take any such action could have a Company Material Adverse
Effect. Section 5.1(c) of the Company Disclosure Schedule sets forth all
material licenses, permits and other authorizations used in the business or
properties (whether owned, leased or managed) of the Company or any of the
Company Subsidiaries.
 
  (d) Copies of the Restated Certificate of Incorporation of the Company (the
"Company Certificate") and Amended and Restated Bylaws of the Company (the
"Company Bylaws") and the other charter documents, bylaws, organizational
documents and partnership, limited liability company and joint venture
agreements (and in each such case, all amendments thereto) of each of the
Company Subsidiaries are listed in Section 5.1(d) of the Company Disclosure
Schedule, and the copies of such documents, which have previously been
delivered to Parent and its counsel, are true and correct.
 
  5.2 Authorization, Validity and Effect of Agreements. Each of the Company
and the Company Subsidiaries has the requisite power and authority to enter
into the Transactions and to execute and deliver this Agreement. The Company
Board has approved this Agreement and the Transactions. In connection with the
foregoing, the Company Board has taken such actions and votes as are necessary
on its part to render the provisions of Section 203 of the DGCL and all other
applicable takeover statutes inapplicable to this Agreement and the
Transactions. Subject only to the approval of this Agreement by the holders of
the Company Common Stock, if required, the execution by the Company of this
Agreement and consummation of the Transactions have been duly authorized by
all requisite corporate action on the part of the Company. This Agreement,
assuming due and valid authorization, execution and delivery thereof by Parent
and Acquisition Sub, constitutes a valid and legally binding obligation of the
Company, enforceable against the Company in accordance with its terms, subject
to applicable bankruptcy, insolvency, moratorium or other similar laws
relating to creditors' rights and general principles of equity.
 
  5.3 Capitalization.
 
  (a) The authorized capital stock of the Company consists of 20,000,000
Shares of Company Common Stock and 5,000,000 shares of preferred stock, par
value $.01 per share, of the Company (the "Company Preferred Stock"). As of
the date of this Agreement, (i) 6,556,424 Shares of Company Common Stock were
issued and outstanding, (ii) 522,001, 696,875 and 340,000 Options were
outstanding under the 1989 Plan, 1995 Plan and Long-Term Plan, respectively,
(iii) 522,001, 800,000 and 340,000 Shares of Company Common Stock were
 
                                     A-10
<PAGE>
 
reserved for issuance upon the exercise of outstanding Options to acquire
Shares of Company Common Stock pursuant to the 1989 Plan, 1995 Plan and Long-
Term Plan, respectively, subject to adjustment on the terms set forth in the
Stock Option Plans, (iv) no shares of Company Preferred Stock were issued and
outstanding, and (v) 242,400 Shares of Company Common Stock and no shares of
Company Preferred Stock were held in the treasury of the Company. As of the
date of this Agreement, the Company had no Shares of Company Common Stock
reserved for issuance other than as described above. All such issued and
outstanding shares of capital stock of the Company are duly authorized,
validly issued, fully paid, nonassessable and free of preemptive rights. The
Company has no outstanding bonds, debentures, notes or other obligations the
holders of which have the right to vote (or which are convertible into or
exercisable for securities having the right to vote) with the stockholders of
the Company on any matter. Except for the Options (all of which have been
issued under the Stock Option Plans), there are not at the date of this
Agreement any existing options, warrants, calls, subscriptions, convertible
securities, or other rights, agreements or commitments which obligate the
Company to issue, transfer or sell any shares of capital stock of the Company.
Section 5.3 of the Company Disclosure Schedule sets forth a full list of the
Options, including the name of the person to whom such Options have been
granted, the number of shares subject to each Option, the per share exercise
price for each Option and the vesting schedule for each Option. Except as set
forth in Section 2.8 hereof and Section 5.3 of the Company Disclosure
Schedule, the vesting schedule of all Options shall not be changed or affected
by the execution of this Agreement or consummation of the Transactions. There
are no agreements or understandings to which the Company or any Company
Subsidiary is a party with respect to the voting of any shares of capital
stock of the Company or which restrict the transfer of any such shares, nor
does the Company have knowledge of any third party agreements or
understandings with respect to the voting of any such shares or which restrict
the transfer of any such shares. There are no outstanding contractual
obligations of the Company or any Company Subsidiary to repurchase, redeem or
otherwise acquire any shares of capital stock, partnership interests or any
other securities of the Company or any Company Subsidiary. Except as set forth
in Section 5.3 of the Company Disclosure Schedule, neither the Company nor any
Company Subsidiary is under any obligation, contingent or otherwise, by reason
of any agreement to register the offer and sale or resale of any of their
securities under the Securities Act of 1933, as amended, and the rules and
regulations promulgated thereunder (the "Securities Act").
 
  5.4 Subsidiaries. The Company owns directly or indirectly each of the
outstanding shares of capital stock of each of the Company Subsidiaries. Each
of the outstanding shares of capital stock in each of the Company Subsidiaries
having corporate form is duly authorized, validly issued, fully paid and
nonassessable. Each of the outstanding shares of capital stock of each of the
Company Subsidiaries is owned, directly or indirectly, by the Company free and
clear of all liens, pledges, security interests, claims or other encumbrances.
The following information for each Subsidiary (as defined in Section 10.2
hereof) of the Company (each, a "Company Subsidiary") as of the date hereof is
set forth in Section 5.4 of the Company Disclosure Schedule: (i) its name and
jurisdiction of incorporation or organization; (ii) its authorized capital
stock or share capital; and (iii) the name of each stockholder and the number
of issued and outstanding shares of capital stock or share capital held by it.
 
  5.5 Other Interests. Except as set forth in Section 5.5 of the Company
Disclosure Schedule, neither the Company nor any Company Subsidiary owns
directly or indirectly any interest or investment (whether equity or debt) in
any corporation, partnership, limited liability company, joint venture,
business, trust or other entity (other than investments in short-term
investment securities).
 
  5.6 No Violation; Consents. Except as set forth in Section 5.6 of the
Company Disclosure Schedule, neither the execution and delivery by the Company
of this Agreement nor consummation by the Company of the Transactions in
accordance with the terms hereof, will: (i) conflict with or result in a
breach of any provisions of the Company Certificate, the Company Bylaws, or
the organizational documents of the Company or any Company Subsidiary; (ii)
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 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 properties of the Company or
 
                                     A-11
<PAGE>
 
the Company Subsidiaries under, or result in being declared void, voidable or
without further binding effect, any of the terms, conditions or provisions of
(x) any note, bond, mortgage, indenture, deed of trust or (y) any license,
franchise, permit, lease, contract, agreement or other instrument, commitment
or obligation to which the Company or any of the Company Subsidiaries is a
party, or by which the Company or any of the Company Subsidiaries or any of
their properties is bound (collectively, the "Company Agreements"); or (iii)
other than the filings provided for in Article II of this Agreement, the Hart-
Scott-Rodino Antitrust Improvements Act of 1976 (the "HSR Act"), the Exchange
Act or applicable state securities and "Blue Sky" laws (collectively, the
"Regulatory Filings"), require any consent, approval or authorization of, or
declaration, filing or registration with, any governmental or regulatory
authority, except where the failure to obtain any such consent, approval or
authorization of, or declaration, filing or registration with, any
governmental or regulatory authority would not have a Company Material Adverse
Effect. Section 5.6 of the Company Disclosure Schedule sets forth a list of
all third party consents and approvals required to be obtained by the Company
in connection with this Agreement prior to consummation of any of the
Transactions. Notwithstanding the foregoing, the failure to disclose in
Section 5.6 of the Company Disclosure Letter any violation, conflict, breach,
default, termination, cancellation, lien, security interest, charge,
encumbrance or other matter referred to in clause (ii) above with respect to a
Company Agreement which would not reasonably be expected to have a Company
Material Adverse Effect shall not in and of itself be deemed to have caused a
failure of the condition set forth in paragraph (c) of Annex A hereto.
 
  5.7 SEC Documents. The Company has filed all required forms, reports and
documents with the Commission since the Company's initial public offering in
November 1995 (collectively, the "Company SEC Reports"), all of which were
prepared in accordance with the applicable requirements of the Exchange Act,
the Securities Act and the rules and regulations promulgated thereunder (the
"Securities Laws"). All required Company SEC Reports have been filed with the
Commission and constitute all forms, reports and documents required to be
filed by the Company under the Securities Laws since the Company's initial
public offering in November 1995. As of their respective dates, the Company
SEC Reports (i) complied as to form in all material respects with the
applicable requirements of the Securities Laws 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 of the Company included in or incorporated by
reference into the Company SEC Reports (including the related notes and
schedules) fairly presents the consolidated financial position of the Company
and the Company Subsidiaries as of its date and each of the consolidated
statements of income, retained earnings and cash flows of the Company included
in or incorporated by reference into the Company SEC Reports (including any
related notes and schedules) fairly presents the results of operations,
retained earnings or cash flows, as the case may be, of the Company and the
Company Subsidiaries for the periods set forth therein (subject, in the case
of unaudited statements, to normal year-end audit adjustments which would not
be material in amount or effect), in each case in accordance with generally
accepted accounting principles consistently applied during the periods
involved, except as may be noted therein and except, in the case of the
unaudited statements, as permitted by Form 10-Q pursuant to Section 13 or
15(d) of the Exchange Act.
 
  5.8 Litigation. Except as set forth on Schedule 5.8, there are (i) no
continuing orders, injunctions or decrees of any court, arbitrator or
governmental authority to which the Company or any Company Subsidiary is a
party or by which any of its properties or assets are bound or to which any of
its directors, officers, employees or, agents, in such capacities, is a party
or by which any of their properties or assets are bound, and (ii) no actions,
suits or proceedings pending against the Company or any Company Subsidiary or
against any of its directors, officers, employees or agents, in such
capacities, or, to the best knowledge of the Company, threatened against the
Company or any Company Subsidiary or against any of its directors, officers,
employees or agents, at law or in equity, or before or by any federal or state
commission, board, bureau, agency or instrumentality.
 
  5.9 Absence of Certain Changes. Except as disclosed in the Company SEC
Reports filed with the SEC prior to the date hereof since December 31, 1997,
the Company and the Company Subsidiaries have conducted their businesses only
in the ordinary course of business and there has not been: (i) any Company
Material
 
                                     A-12
<PAGE>
 
Adverse Effect; (ii) as of the date hereof, any declaration, setting aside or
payment of any dividend or other distribution with respect to the Company
Common Stock; (iii) any material commitment, contractual obligation
(including, without limitation, any management or franchise agreement, any
lease (capital or otherwise) or any letter of intent), borrowing, liability,
guaranty, capital expenditure or transaction (each, a "Commitment") entered
into by the Company or any of the Company Subsidiaries outside the ordinary
course of business except for Commitments for expenses of attorneys,
accountants and investment bankers incurred in connection with the
Transactions; or (iv) any material change in the Company's accounting
principles, practices or methods.
 
  5.10 Taxes.
 
  (a) Neither the Company nor any Company Subsidiaries has any material tax
liability for unpaid Taxes, as defined below, which has not been paid, accrued
for or reserved on the Company's audited balance sheet as of December 31, 1997
or has incurred any material tax liability for unpaid Taxes or any other
liabilities for unpaid Taxes other than in the ordinary course business since
that date. "Taxes" shall mean all federal, state, local, foreign, and other
taxes, including without limitation, income taxes, estimated taxes,
alternative minimum taxes, excise taxes, sales taxes, use taxes, value-added
taxes, gross receipts taxes, franchise taxes, capital stock taxes, employment
and payroll-related taxes, withholding taxes, stamp taxes, transfer taxes,
windfall profit taxes, environmental taxes and real and personal property
taxes, whether or not measured in whole or in part by net income, and all
deficiencies, or other additions to tax, interest, fines and penalties.
 
  (b) Except as set forth on Schedule 5.10 of the Company Disclosure Schedule,
the Company and each of the Company Subsidiaries has timely filed all federal,
state, local and foreign tax returns required to be filed by any of them
through the date hereof, and all such returns completely and accurately set
forth the amount of any Taxes relating to the applicable period.
 
  (c) Neither the Internal Revenue Service (the "IRS") nor any other
governmental authority is now asserting by written notice to the Company or
any Company Subsidiary or, to the best knowledge of the Company and the
Company Subsidiaries, threatening to assert against the Company or any Company
Subsidiary any deficiency or claim for additional Taxes. There is no dispute
or claim concerning any material tax liability of the Company or any Company
Subsidiary, either claimed or raised by any governmental authority, or as to
which any director or officer of the Company or any Company Subsidiary has
reason to believe may be claimed or raised by any federal or state
governmental authority. No material claim has ever been made by a taxing
authority in a jurisdiction where the Company does not file reports and
returns that the Company is or may be subject to taxation by that
jurisdiction. There are no security interests on any of the assets of the
Company or any Company Subsidiary that arose in connection with any failure
(or alleged failure) to pay any Taxes. The Company has never entered into a
closing agreement pursuant to Section 7121 of the Internal Revenue Code of
1986, as amended (the "Code").
 
  (d) The Company has not received written notice of any audit of any tax
return filed by the Company, and the Company has not been notified by any tax
authority that any such audit is contemplated or pending. Neither the Company
nor any of the Company Subsidiaries has executed or filed with the IRS or any
other taxing authority any agreement now in effect extending the period for
assessment or collection of any income or other Taxes, and no extension of
time with respect to any date on which a tax return was or is to be filed by
the Company is in force. True, correct and complete copies of all federal,
state and local income or franchise tax returns filed by the Company and each
of the Company Subsidiaries and all communications relating thereto have been
delivered to Parent or made available to representatives of Parent.
 
  (e) The Company and each Company Subsidiary have withheld and paid all Taxes
required to have been withheld and paid in connection with amounts paid or
owing to any employee, independent contractor, creditor, stockholder or other
party.
 
  5.11 Books and Records.
 
  (a) The books of account and other financial records of the Company and each
of the Company Subsidiaries are true, complete and correct in all material
respects, have been maintained in accordance with good business
 
                                     A-13
<PAGE>
 
practices, and are accurately reflected in all material respects in the
financial statements included in the Company SEC Reports.
 
  (b) The minute books and other records of the Company and each of the
Company Subsidiaries have been made available to Parent and Acquisition Sub,
contain in all material respects accurate records of all meetings and
accurately reflect in all material respects all other corporate action of the
stockholders and directors and any committees of the Company Board and the
boards of directors of each of the Company Subsidiaries and all actions of the
partners or managers of each of the Company Subsidiaries, as applicable.
 
  5.12 Properties.
 
  (a) All of the real estate properties owned or leased by the Company or any
of the Company Subsidiaries are set forth in Section 5.12 of the Company
Disclosure Schedule. The Company has no ownership interest in any real
property other than the properties owned by the Company or the Company
Subsidiaries and set forth in Section 5.12 of the Company Disclosure Schedule.
Except as set forth in Section 5.12 of the Company Disclosure Schedule, the
Company or such Company Subsidiary owns fee simple title to each of the real
properties identified in Section 5.12 of the Company Disclosure Schedule (the
"Company Properties"), free and clear of liens, mortgages or deeds of trust,
claims against title, charges which are liens, security interests or other
encumbrances on title (collectively, "Encumbrances"), and the Company
Properties are not subject to any easements, rights of way, covenants,
conditions, restrictions or other written agreements, laws, ordinances and
regulations materially affecting building use or occupancy, or reservations of
an interest in title (collectively, "Property Restrictions"), except for (i)
Encumbrances, Property Restrictions and other matters set forth in Section
5.12 of the Company Disclosure Schedule, (ii) Property Restrictions imposed or
promulgated by law or any governmental body or authority with respect to real
property, including zoning regulations, that do not materially and adversely
affect the current use of the property, materially detract from the value of
or materially interfere with the present use of the property, (iii)
Encumbrances and Property Restrictions disclosed on existing title policies or
reports or current surveys (in either case copies of which title reports and
surveys have been delivered or made available to Parent and are listed in
Section 5.12 of the Company Disclosure Schedule), and (iv) mechanics',
carriers', suppliers', workmen's or repairmen's liens and other Encumbrances,
Property Restrictions and other limitations of any kind, if any, which,
individually or in the aggregate, are not material in amount, do not
materially detract from the value of or materially interfere with the present
use of any of the Company Properties subject thereto or affected thereby, and
do not otherwise materially impair business operations conducted by the
Company and the Company Subsidiaries and which have arisen or been incurred
only in the ordinary course of business. Valid policies of title insurance
have been issued insuring the Company's or the applicable Company Subsidiary's
fee simple (or leasehold to the extent disclosed in Section 5.12 of the
Company Disclosure Schedule) title to each of the Company Properties in
amounts at least equal to the purchase price thereof, and such policies are,
as of the date hereof, in full force and effect and no material claim has been
made against any such policy and the Company has no knowledge of any facts or
circumstances which would constitute the basis for such a claim. Except as set
forth in Section 5.12 of the Company Disclosure Schedule, (A) no certificate,
permit or license from any governmental authority having jurisdiction over any
of the Company Properties or any agreement, easement or other right which is
necessary to permit the lawful use and operation by the Company of the
buildings and improvements on any of the Company Properties as currently
operated or which is necessary to permit the lawful use and operation by the
Company of all driveways, roads and other means of egress and ingress to and
from any of the Company Properties (a "REA Agreement") has not been obtained
and is not in full force and effect, and to the Company's knowledge, there is
no pending threat of modification or cancellation of any of the same nor is
the Company nor any Company Subsidiary currently in default under any REA
Agreement and the Company Properties are in full compliance with all
governmental permits, licenses and certificates, except for such defaults
which or where such noncompliance could not reasonably be expected to have a
Company Material Adverse Effect; (B) no written notice of any material
violation of any federal, state or municipal law, ordinance, order, regulation
or requirement affecting any portion of any of the Company Properties has been
issued to the Company by any governmental authority; (C) to the Company's
knowledge, there are no material structural defects relating to any of the
Company Properties; (D) to the Company's knowledge, there is no Company
Property whose building systems are not in working order in
 
                                     A-14
<PAGE>
 
any material respect; and (E) to the Company's knowledge, there is no physical
damage for which the Company is responsible to any Company Property in excess
of $25,000 for which there is no insurance in effect covering the full cost of
the restoration.
 
  (b) The use and occupancy by the Company of each of the Company Properties
complies in all material respects with all applicable codes and zoning laws
and regulations, and the Company has no knowledge of any pending or threatened
proceeding or action that will in any manner affect the size of, use of,
improvements on, construction on, or access to any of the Company Properties,
with such exceptions as are not material and do not interfere with the use
made by the Company of such Company Properties. Neither the Company nor any of
the Company Subsidiaries has received any written notice to the effect that
(x) any betterment assessments have been levied against, or any condemnation
or rezoning proceedings are pending or threatened with respect to any of the
Company Properties or (y) any zoning, building or similar law, code,
ordinance, order or regulation is or will be violated by the continued
maintenance, operation or use of any buildings or other improvements on any of
the Company Properties or by the continued maintenance, operation or use of
the parking areas which, with respect to either (x) or (y) would individually
or in the aggregate result in a Company Material Adverse Effect. There are no
outstanding abatement proceedings or appeals to which the Company or any of
the Company Subsidiaries is a party with respect to the assessment of any
Company Property for the purpose of real property taxes, and there are no
agreements to which the Company or any of the Company Subsidiaries is a party
with any governmental authority with respect to such assessments or tax rates
on any Company Property.
 
  (c) The Company and the Company Subsidiaries own good and marketable title,
free and clear of all Encumbrances, to all of the personal property and assets
shown on the Company's balance sheet at December 31, 1997 as reflected in the
Company SEC Reports (the "Balance Sheet") or acquired after December 31, 1997,
except for (A) assets which have been disposed of to nonaffiliated third
parties since December 31, 1997 in the ordinary course of business, (B)
Encumbrances reflected in the Balance Sheet, (C) Encumbrances or imperfections
of title which are not, individually or in the aggregate, material in
character, amount or extent and which do not materially detract from the value
or materially interfere with the present or presently contemplated use of the
assets subject thereto or affected thereby, and (D) Encumbrances for current
Taxes not yet due and payable. All of the machinery, equipment and other
tangible personal property and assets owned or used by the Company and the
Company Subsidiaries are, to the Company's knowledge, in good condition and
repair, except for ordinary wear and tear not caused by neglect, and are
useable in the ordinary course of business. The personal property and assets
reflected on the Balance Sheet or acquired after December 31, 1997, the rights
under the Company Agreements and the Intellectual Property (as hereinafter
defined) owned or used by the Company under valid license, collectively
include all assets necessary to provide, produce, sell and license the
services and products currently provided, produced, sold and licensed by the
Company and the Company Subsidiaries and to conduct the business of the
Company and the Company Subsidiaries as presently conducted or as currently
contemplated to be conducted.
 
  5.13 Intellectual Property.
 
  (a) Section 5.13(a) of the Company Disclosure Schedule contains an accurate
and complete schedule setting forth (x) all Trademarks, Patents, and
registered Copyrights (as each such term is hereinafter defined) which are
owned by the Company or any of the Company Subsidiaries and (y) all Licenses
(as hereinafter defined) to which the Company or any of the Company
Subsidiaries is a party (other than software licensed to the Company or to any
of the Company Subsidiaries under nonexclusive shrinkwrap or other standard
software licenses granted to end-user customers by third parties in the
ordinary course of business of such third parties' businesses ("Standard Third
Party Software")), such schedule indicating, as to each such License, whether
the Company or any of the Company Subsidiaries is the licensee or licensor,
whether it is royalty bearing, the territory, whether it is exclusive or
nonexclusive, and the nature of the licensed property.
 
  (b) Except as set forth in Section 5.13(b) of the Company Disclosure
Schedule, neither the Company nor any of the Company Subsidiaries is under any
obligation to pay any royalty or other compensation to any third party or to
obtain any approval or consent for the use of any Intellectual Property used
in or necessary for its
 
                                     A-15
<PAGE>
 
business as currently conducted or as currently proposed to be conducted. None
of the Intellectual Property owned by the Company or by any of the Company
Subsidiaries, or to the Company's best knowledge, licensed to the Company or
to any of the Company Subsidiaries, is subject to any outstanding judgment,
order, decree, stipulation, injunction or charge. There is no claim, charge,
complaint, action, suit, proceeding, hearing, investigation or demand pending
or, to the Company's knowledge, threatened, which challenges the legality,
validity, enforceability, or the Company's or any of the Company Subsidiaries'
use or ownership of any of the Intellectual Property owned by the Company or
any of the Company Subsidiaries or, to the Company's knowledge, licensed to
the Company or to any of the Company Subsidiaries. Neither the Company nor any
of its Subsidiaries has agreed to indemnify any person for or against any
interference, infringement, misappropriation, or other conflict with respect
to any Intellectual Property, except as may be contained within the Licenses
set forth in Section 5.13(a) of the Company Disclosure Schedule.
 
  (c) No breach or default (or event which with notice or lapse of time or
both would result in an event of default) by the Company or any of the Company
Subsidiaries exists or has occurred within the last 12 months under any
License or other agreement pursuant to which the Company or any of the Company
Subsidiaries uses any Intellectual Property owned by a third party or has
granted any third party the right to use its Intellectual Property except
where such breach or default could not reasonably be expected to result in a
termination of a material License or other agreement or otherwise in a Company
Material Adverse Effect, and the consummation of the Transactions will not
violate or conflict with or constitute a default (or an event which, with
notice or lapse of time or both, would constitute a default), result in a
forfeiture under, or constitute a basis for termination of any such License or
other agreement.
 
  (d) The Company and the Company Subsidiaries own all items of Intellectual
Property set forth as owned by them in Schedule 5.13(a) and own or have the
right to use all items of Intellectual Property necessary to provide, produce,
sell and license the services and products currently provided, produced, sold
and licensed by the Company and the Company Subsidiaries and to conduct the
business of the Company and the Company Subsidiaries as presently conducted or
as currently proposed to be conducted, free and clear of all Encumbrances,
other than the delegations set forth in the Licenses or other agreements under
which the Company has been granted the right to use Intellectual Property of
third parties.
 
  (e) The conduct of the Company's and the Company Subsidiaries' businesses,
the Intellectual Property owned or used by the Company and the Company
Subsidiaries, and the products or services produced, sold or licensed by or
under development by the Company and the Company Subsidiaries do not, to the
Company's knowledge, infringe any Intellectual Property rights of any person
or give rise to any material obligations to any person as a result of co-
authorship, co-inventorship, or an express or implied contract for any use or
transfer. To the Company's knowledge, the Company and the Company Subsidiaries
have received no notice of any allegations that the Company's and the Company
Subsidiaries' use of any of the Intellectual Property infringes upon or is in
conflict with any Intellectual Property of any third party, and no basis
exists for any such allegations.
 
  (f) Neither the Company nor any of the Company Subsidiaries has sent or
otherwise communicated to any other person any notice, charge, claim or
assertion of any present, impending or threatened infringement by any other
person of any Intellectual Property of the Company and the Company
Subsidiaries and, to the Company's knowledge, there are no such infringements.
 
  (g) None of the Company's and the Company Subsidiaries' products or services
incorporate, are based upon or are derived or adapted from, any Intellectual
Property of any other person in violation of any statutory or other legal
obligation known to the Company or any agreement to which the Company or any
of the Company Subsidiaries is a party or by which it is bound.
 
  (h) All of the Company's and the Company Subsidiaries' Patents, Trademarks
and Copyrights issued by, registered with or filed with the United States
Patent and Trademark Office or Register of Copyrights or the corresponding
offices of other countries have been so duly registered, filed in or issued,
as the case may be, have
 
                                     A-16
<PAGE>
 
been properly maintained and renewed in accordance with all applicable
provisions of law and administrative regulations, and the Company and the
Company Subsidiaries, as the case may be, are the record owners thereof. The
Company and the Company Subsidiaries have reasonably maintained the
confidentiality of their trade secrets and other confidential Intellectual
Property, and there have been no acts or omissions by the Company or the
Company Subsidiaries, the result of which would be to compromise the rights of
the Company or the Company Subsidiaries to apply for or enforce appropriate
legal protection of such Intellectual Property, except where such acts or
omissions would not reasonably be expected to result in a Company Material
Adverse Effect.
 
  (i) Since December 31, 1992, each of the Company's and the Company
Subsidiaries' employees, officers and agents, and each independent contractor
retained by the Company or any of the Company Subsidiaries to develop for or
otherwise work with or to perform functions providing access to, any
Intellectual Property of the Company has entered into a written agreement with
the Company or such Company Subsidiary (x) providing that all of the Company's
and the Company Subsidiaries' Intellectual Property is confidential and
proprietary to the Company or such Company Subsidiary, and (y) obligating the
disclosure and transfer to the Company or any such Company Subsidiary, in
consideration for no more than normal salary and continued employment or
consultant fees, as the case may be, of all inventions, developments and work
product which during the period of his or her employment or consultancy with
the Company or any of the Company Subsidiaries, as the case may be, such
employee, officer, agent, or independent contractor made or makes that related
or relate to any subject matter with which such employee's, officer's,
agent's, or independent contractor's work for the Company or any of the
Company Subsidiaries was concerned, or, in the case of employees, officers and
agents, are made during such person's period of employment (or contractual
relationship) or in connection therewith. To the Company's knowledge, no
present or former employees, officers, directors or independent contractors of
the Company or any of the Company Subsidiaries have asserted any claim, or
have any valid claim or valid right, to any of the Company's or any of the
Company Subsidiaries' Intellectual Property used in or necessary for the
conduct of the Company's or the Company Subsidiaries' business as now
conducted or as currently proposed to be conducted. To the Company's
knowledge, no employee, officer, agent or director of the Company or any of
the Company Subsidiaries is a party to or otherwise bound by any agreement
with or obligated to any other person (including, any former employer) which
conflicts with any obligation or commitment of such employee to the Company or
any of the Company Subsidiaries under any agreement to which he or she is a
party or otherwise.
 
  (j) Section 5.13(j) of the Company Disclosure Schedule identifies each
person to whom the Company or any of the Company Subsidiaries has sold or
otherwise transferred any interest or rights to any Intellectual Property
other than transfers pursuant to the development or license agreements with
customers entered into in the ordinary course of business or from whom the
Company or any Company Subsidiary has purchased rights in any Intellectual
Property other than purchases pursuant to development or license agreements
with customers entered into in the ordinary course of business, and the date,
if applicable, of each such sale, transfer or purchase.
 
  (k) The Company and each of the Company Subsidiaries have preserved and
reasonably maintained notes and records (including, without limitation,
drawings, flowcharts, prototypes and models) relating to its material knowhow,
inventions, processes, procedures, drawings, specifications, designs, plans,
written proposals, technical data, works of authorship and other proprietary
technical information of material value to the Company, sufficient to cause
such proprietary information to be readily identified, understood and
available.
 
  (l) As used in this Agreement, "Intellectual Property" means all of the
following: (i) U.S. and foreign registered and unregistered trademarks, trade
dress, service marks, logos, trade names, corporate names and all
registrations and applications to register the same (the "Trademarks"); (ii)
issued U.S. and foreign patents and pending patent applications, patent
disclosures, and any and all divisions, continuations, continuations-in-part,
reissues, reexaminations, and extensions thereof, any counterparts claiming
priority therefrom, utility models, patents of importation/confirmation,
certificates of invention and like statutory rights (the "Patents"); (iii)
U.S. and foreign registered and unregistered copyrights (including, but not
limited to, those in computer software and databases), rights of publicity and
all registrations and applications to register the same (the "Copyrights");
 
                                     A-17
<PAGE>
 
(iv) all categories of trade secrets as defined in the Uniform Trade Secrets
Act including, but not limited to, business information; (v) all licenses and
agreements pursuant to which the Company has acquired rights in or to any of
the Trademarks, Patents, Copyrights, or licenses and agreements pursuant to
which the Company has licensed or transferred the right to use any of the
foregoing, other than Standard Third Party Software which is commercially
available for licensing at a price of less than $5,000.00 per copy, not
including site licenses ("Licenses"); and (vi) all software know how and other
proprietary rights which are used or held for use in the Company's business as
now conducted or currently proposed to be conducted, other than Standard Third
Party Software which is commercially available for licensing at a price of
less than $5,000.00 per copy, not including site licenses.
 
  5.14 Environmental Matters. The Company and the Company Subsidiaries are in
compliance with all Environmental Laws (as defined below), except for any
noncompliance that, either singly or in the aggregate, would not reasonably be
expected to have Company Material Adverse Effect. As used in this Agreement,
"Environmental Laws" shall mean all federal, state and local laws, rules,
regulations, ordinances and orders that purport to regulate the release of
hazardous substances or other materials into the environment, or impose
requirements relating to environmental protection. The Company has previously
made available to Parent copies of all documents concerning any environmental
or health and safety matter adversely affecting the Company and copies of
environmental audits or risk assessments, site assessments, documentation
regarding off-site disposal of Hazardous Materials (as defined below), spill
control plans and material correspondence with any federal, state or local
government, court, administrative agency, commission, or other governmental
authority, domestic or foreign, regarding the foregoing. As used in this
Agreement, "Hazardous Materials" means any "hazardous waste" as defined in
either the United States Resource Conservation and Recovery Act or regulations
adopted pursuant to said act, any "hazardous substances" or "hazardous
materials" as defined in the United States Comprehensive Environmental
Response, Compensation and Liability Act and, to the extent not included in
the foregoing, any medical waste, oil or fractions thereof, pollutants or
contaminants. There is no administrative or judicial enforcement proceeding
pending, or to the best knowledge of the Company threatened, against the
Company or any Company Subsidiary under any Environmental Law. Neither the
Company nor any Company Subsidiary or, to the best knowledge of the Company,
any legal predecessor of the Company or any Company Subsidiary, has received
any written notice that it is potentially responsible under any Environmental
Law for response costs or natural resource damages, as those terms are defined
under the Environmental Laws, at any location and neither the Company nor any
Company Subsidiary has transported or disposed of, or allowed or arranged for
any third party to transport or dispose of, any waste containing Hazardous
Materials at any location included on the National Priorities List, as defined
under the Comprehensive Environmental Response, Compensation, and Liability
Act, or any location proposed for inclusion on that list or at any location on
any analogous state list. The Company has no knowledge of any release on the
real property owned or leased by the Company or any Company Subsidiary or
predecessor entity of Hazardous Materials in a manner that could result in an
order to perform a response action or in material liability under the
Environmental Laws and, to the Company's knowledge, there is no hazardous
waste treatment, storage or disposal facility, underground storage tank,
landfill, surface impoundment, underground injection well, friable asbestos or
PCB's, as those terms are defined under the Environmental Laws, located at any
of the real property owned or leased by the Company or any Company Subsidiary
or predecessor entity or facilities utilized by the Company or the Company
Subsidiaries.
 
  5.15 Employee Benefit Plans.
 
  (a) Section 5.15 of the Company Disclosure Schedule sets forth a list of
every Company Benefit Plan (as hereinafter defined) that has been maintained
by the Company or an Affiliate (as hereinafter defined) at any time during the
six-year period ending on the date hereof.
 
  (b) Each Company Benefit Plan which has been intended to qualify under
Section 401(a) of the Code has received a favorable determination or approval
letter from the IRS regarding its qualification under such section and neither
the Company nor any Affiliate knows, or should reasonably know, that any such
Company Benefit Plan has been maintained in a manner that would preclude
qualified status, from the effective date of such
 
                                     A-18
<PAGE>
 
Company Benefit Plan through and including the date hereof (or, if earlier,
the date that all of such Company Benefit Plan's assets, if any, were
distributed), or otherwise fails to satisfy the relevant requirements to
provide tax-favored benefits under Code Section 401(a). Each asset held under
any such Company Benefit Plan may be liquidated or terminated without the
imposition of any redemption fee, surrender charge or comparable liability. No
partial termination (within the meaning of Section 411(d)(3) of the Code) has
occurred with respect to any Company Benefit Plan that has been intended to
qualify under Section 401(a) of the Code.
 
  (c) Neither the Company nor any Affiliate knows of any failure of any party
to comply with any laws applicable with respect to the Company Benefit Plans.
With respect to any Company Benefit Plan, there has been no (i) "prohibited
transaction," as defined in Section 406 of the Employee Retirement Income
Security Act of 1974, as amended ("ERISA"), or Code Section 4975, for which an
exemption is not available or (ii) material failure to comply with any
provision of ERISA, other applicable law, or any agreement, or (iii) non-
deductible contribution, which, in the case of any of (i), (ii) or (iii),
could reasonably be expected to subject the Company or any Affiliate to
liability (including, without limitation, through any obligation of
indemnification or contribution) for any damages, penalties, or taxes, or any
other material loss or expense. No litigation or governmental administrative
proceeding (or investigation) or other proceeding (other than those relating
to routine claims for benefits) is pending or, to the Company's knowledge,
threatened with respect to any such Company Benefit Plan. All payments and/or
contributions required to have been made (under the provisions of any
agreements or other governing documents or applicable law) with respect to all
Company Benefit Plans, for all periods prior to the date hereof, either have
been made or have been accrued (and all such unpaid but accrued amounts are
described on Section 5.15 of the Company Disclosure Schedule).
 
  (d) No Company Benefit Plan is subject to Title IV of ERISA or is a
Multiemployer Plan. None of the Company Benefit Plans has ever provided health
care or any other non-pension benefits to any employees after their employment
is terminated (other than as required by part 6 subtitle B of title I of
ERISA) or has ever promised to provide such post-termination benefits.
 
  (e) With respect to each Company Benefit Plan, complete and correct copies
of the following documents (if applicable to such Company Benefit Plan) have
previously been delivered to the Parent: (i) all documents embodying or
governing such Company Benefit Plan, and any funding medium for the Company
Benefit Plan (including, without limitation, trust agreements) as they may
have been amended to the date hereof; (ii) the most recent IRS determination
or approval letter with respect to such Company Benefit Plan under Code
Section 401(a), and any applications for determination or approval
subsequently filed with the IRS; (iii) the three most recently filed IRS Forms
5500, with all applicable schedules and accountants' opinions attached
thereto; (iv) the summary plan description for such Company Benefit Plan (or
other descriptions of such Company Benefit Plan provided to employees) and all
modifications thereto; (v) any insurance policy (including any fiduciary
liability insurance policy or fidelity bond) related to such Company Benefit
Plan; (vi) any registration statement or other filing made pursuant to any
federal or state securities law; and (vii) all correspondence to and from any
state or federal agency within the last six years with respect to such Company
Benefit Plan.
 
  (f) Each Company Benefit Plan required to be listed on Section 5.15 of the
Company Disclosure Schedule may be amended, terminated, or otherwise modified
by the Company to the greatest extent permitted by applicable law, including
the elimination of any and all future benefit accruals under any Company
Benefit Plan and no employee communications or provision of any Company
Benefit Plan document has failed to effectively reserve the right of the
Company or the Affiliate to so amend, terminate or otherwise modify such
Company Benefit Plan.
 
  (g) The Purchase Plan and each Stock Option Plan have been maintained in
compliance with all applicable requirements of federal and state securities
laws including (without limitation, if applicable) the requirements that the
offering of interests in such Stock Option Plan and Purchase Plan be
registered under the Securities Act and/or state "Blue Sky" laws.
 
                                     A-19
<PAGE>
 
  (h) Each Company Benefit Plan has complied with the applicable notification
and other applicable requirements of the Consolidated Omnibus Budget
Reconciliation Act of 1985, Health Insurance Portability and Accountability
Act of 1996, the Newborns' and Mothers' Health Protection Act of 1996, and the
Mental Health Parity Act of 1996.
 
  (i) For purposes of this Section:
 
    (i) "Company Benefit Plan" means (A) all employee benefit plans within
  the meaning of ERISA Section 3(3) maintained by the Company or any
  Affiliate, including, but not limited to, multiple employer welfare
  arrangements (within the meaning of ERISA Section 3(40)), plans to which
  more than one unaffiliated employer contributes and employee benefit plans
  (such as foreign or excess benefit plans) which are not subject to ERISA;
  (B) all stock option plans, stock purchase plans, bonus or incentive award
  plans, severance pay policies or agreements, deferred compensation
  agreements, supplemental income arrangements, vacation plans, and all other
  employee benefit plans, agreements, and arrangements (including any
  informal arrangements) not described in (A) above maintained by the Company
  or any Affiliate, including without limitation, any arrangement intended to
  comply with Code Section 120, 125, 127, 129 or 137; and (C) all plans or
  arrangements providing compensation to employee and non-employee directors
  maintained by the Company or any Affiliate. In the case of a Company
  Benefit Plan funded through a trust described in Code Section 401(a), or
  any other funding vehicle, each reference to such Company Benefit Plan
  shall include a reference to such trust, organization or other vehicle;
 
    (ii) An entity "maintains" a Company Benefit Plan if such entity
  sponsors, contributes to, or provides benefits under or through such
  Company Benefit Plan, or has any obligation (by agreement or under
  applicable law) to contribute to or provide benefits under or through such
  Company Benefit Plan, or if such Company Benefit Plan provides benefits to
  or otherwise covers employees of such entity (or their spouses, dependents,
  or beneficiaries);
 
    (iii) An entity is an "Affiliate" of the Company for purposes of this
  Section 5.15 if it would have ever been considered a single employer with
  the Company under ERISA Section 4001(b) or part of the same "controlled
  group" as the Company for purposes of ERISA Section 302(d)(8)(C); and
 
    (iv) "Multiemployer Plan" means an employee pension or welfare benefit
  plan to which more than one unaffiliated employer contributes and which is
  maintained pursuant to one or more collective bargaining agreements.
 
  5.16 Labor Matters. Neither the Company nor any Company Subsidiary is a
party to, or bound by, any collective bargaining agreement, contract or other
agreement or understanding with a labor union or labor union organization.
There is no unfair labor practice or labor arbitration proceeding pending or,
to the knowledge of the Company, threatened against the Company or any of the
Company Subsidiaries relating to their business, except for any such
proceeding which could not reasonably be expected to have a Company Material
Adverse Effect. To the Company's knowledge there are no organizational efforts
with respect to the formation of a collective bargaining unit presently being
made or threatened involving employees of the Company or any of the Company
Subsidiaries.
 
  5.17 No Brokers. Neither the Company nor any of the Company Subsidiaries has
entered into any contract, arrangement or understanding with any person or
firm which may result in the obligation of such entity or Parent or
Acquisition Sub to pay any finder's fees, brokerage or agent's commissions or
other like payments in connection with the negotiations leading to this
Agreement or consummation of the Transactions, except that the Company has
retained Updata Capital, Inc. ("Updata") and Parker/Hunter Incorporated
("Parker/Hunter") as its financial advisors in connection with the
Transactions. Other than the foregoing arrangements and Parent's arrangements
with Donaldson, Lufkin & Jenrette Securities Corporation, the Company 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 consummation of the Transactions. The Company has
previously delivered to Parent and its counsel true and correct copies of the
agreements relating to the Company's engagement of Updata and Parker/Hunter.
 
                                     A-20
<PAGE>
 
  5.18 Opinion of Financial Advisors. The Company has received the opinions of
Updata and Parker/Hunter to the effect that, as of the date hereof, the Offer
Price and the Merger Consideration are fair to the holders of the Company
Common Stock from a financial point of view, and has delivered a true and
correct copy of such opinion to Parent.
 
  5.19 Related Party Transactions. Set forth in Section 5.19 of the Company
Disclosure Schedule is a list of all arrangements, agreements and contracts
entered into by the Company or any of the Company Subsidiaries (which are or
will be in effect as of or after the date of this Agreement) with (i) any
consultant (excluding legal counsel, accountants and financial advisors) (x)
involving payments in excess of $10,000 or (y) which may not be terminated at
will by the Company or Company Subsidiary which is a party thereto or (ii) any
person who is an officer, director or affiliate of the Company or any of the
Company Subsidiaries, any relative of any of the foregoing or any entity of
which any of the foregoing is an affiliate. All such documents are listed in
Section 5.19 of the Company Disclosure Schedule and the copies of such
documents, which have previously been provided or made available to Parent and
its counsel, are true and correct copies.
 
  5.20 Potential Conflicts of Interest. Except as set forth in Schedule 5.20,
no officer of the Company or any of the Company Subsidiaries owns, directly or
indirectly, any interest in (excepting not more than 1% stock holdings for
investment purposes in securities of publicly held and traded companies) or is
an officer, director, employee or consultant of any person which is a
competitor, lessor, lessee, customer or supplier of the Company or any of the
Company Subsidiaries; and no officer or director of the Company or any of the
Company Subsidiaries (i) owns, directly or indirectly, in whole or in part,
any Intellectual Property which the Company or any of the Company Subsidiaries
is using or the use of which is necessary for the business of the Company or
any of the Company Subsidiaries, (ii) to the Company's knowledge, has any
claim, charge, action or cause of action against the Company or any of the
Company Subsidiaries, except for claims for accrued vacation pay, accrued
benefits under the Company Benefit Plans and similar matters and agreements
existing on the date hereof, (iii) has made, on behalf of the Company or any
of the Company Subsidiaries, any payment or commitment to pay any material
commission, fee or other amount to, or to purchase or obtain or otherwise
contract to purchase or obtain any goods or services material to the Company
from, any other person of which any officer or director of the Company, or, to
the Company's knowledge, a relative of any of the foregoing, is a partner or
stockholder (except stock holdings solely for investment purposes in
securities of publicly held and traded companies), (iv) owes any money to the
Company or any of the Company Subsidiaries, or (v) is owed any money by the
Company or any of the Company Subsidiaries.
 
  5.21 Contracts and Commitments. Section 5.21 of the Company Disclosure
Schedule sets forth (i) all notes, debentures, bonds and other evidence of
indebtedness which are secured or collateralized by mortgages, deeds of trust
or other security interests in the Company Properties or personal property of
the Company or any of the Company Subsidiaries, or by any direct or indirect
ownership interest in the Company or any of the Company Subsidiaries, (ii)
each Commitment entered into by the Company or any of the Company Subsidiaries
which may result in total payments by or liability of the Company or any
Company Subsidiary in excess of $25,000 individually and $100,000 in the
aggregate for a series of Commitments to the same third party, (iii) all
leases and subleases entered into by the Company or any of the Company
Subsidiaries as lessor, sublessor, lessee or sublessee which may result in
total payments or liability in excess of $25,000 individually and $100,000 in
the aggregate for a series of leases or subleases with the same third party,
(iv) all material contracts between (A) the Company and US West, Inc. and its
affiliated entities and (B) the Company and Bell South Corporation and its
affiliated entities and contracts performed on behalf of Bell South and its
affiliated entities by Andersen Consulting LLP (the "Customer Contracts") and
(v) all other Company Agreements which individually would reasonably be
expected to result in payments to the Company in excess of $25,000
individually and $100,000 in the aggregate for a series of Company Agreements
with the same third party, or otherwise materially affect the Company's
present operations. The foregoing are listed in Section 5.21 of the Company
Disclosure Schedule and the copies of such documents, which have previously
been provided to Parent and its counsel, are true and correct. Each of (i) the
Customer Contracts and (ii) the other documents described in said Section 5.21
of the Company Disclosure Schedule (which term specifically excludes the
Customer Contracts) is legally valid and
 
                                     A-21
<PAGE>
 
binding and in full force and effect, except in the case of the Material
Contracts where the failure to be legally valid and binding and in full force
and effect would not have a Company Material Adverse Effect, and there are no
material defaults thereunder by the Company, or to the Company's knowledge by
any other party thereto, except in the case of the Material Contracts those
defaults that could not reasonably be expected to have a Company Material
Adverse Effect. All joint venture agreements to which the Company or any of
the Company Subsidiaries is a party are set forth in Section 5.21 of the
Company Disclosure Schedule and neither the Company nor any of the Company
Subsidiaries is in default with respect to any obligations thereunder, which
individually or in the aggregate, are material.
 
  5.22 Year 2000. Except as set forth in Section 5.22 of the Company
Disclosure Schedule, the Company has identified and analyzed both internally
developed and acquired software which is material to its operations or which
has been or is being provided or delivered to customers and utilizes date
embedded codes that may experience operations problems when the Year 2000 is
reached and, where problems have arisen, has made, or has coordinated with
customers, suppliers, financial institutions and others with which it has
business relationships that are material to the Company's business to make,
all necessary modifications to the identified software to make such software
Year 2000 compliant. Except as disclosed in the Company SEC Reports, the
Company and the Company Subsidiaries have not incurred, and do not expect to
incur, significant operating expenses or been required, or expect to be
required, to invest heavily in computer systems improvements to be Year 2000
compliant, and business operations have not been disrupted and, to the
Company's knowledge, its customers have not experienced any material
interruption of service as a result of making such software Year 2000
compliant. Section 5.22 of the Company Disclosure Schedule identifies all
outstanding Year 2000 compliance problems known to the Company relating to its
software (including, without limitation, software provided or delivered to
customers), with a correct and materially complete statement of the status of
the Company's efforts to correct such problems. "Year 2000 compliant" means,
with respect to the Company's information technology, the information
technology is designed to be used prior to, during and after the calendar Year
2000 A.D., and the information technology used during each such time period
will accurately receive, provide and process date/time data (including,
without limitation, calculating, comparing and sequencing) from, into and
between the 20th and 21st centuries, including the years 1999 and 2000, and
leap-year calculations and will not materially malfunction, cease to function,
or provide invalid or incorrect results as a result of date/time data, to the
extent that other information technology, used in combination with the
information technology being acquired, properly exchanges date/time data with
it. "Information technology," means computer software, computer firmware,
computer hardware (whether general or specific purpose), and other similar or
related items of automated, computerized, or software system(s) that are used
or relied on by the Company and the Company Subsidiaries in the conduct of its
business.
 
  5.23 Vote Required for Merger. The affirmative vote of the holders of a
majority of the outstanding Shares is the only vote of the holders of any
class or series of the Company's capital stock necessary to approve this
Agreement and the Transactions in connection with the consummation of the
Merger.
 
  5.24 Suppliers and Customers. Except as set forth on Schedule 5.24, since
December 31, 1997, no material licensor, vendor, supplier, licensee or
customer of the Company or any of the Company Subsidiaries has canceled or
otherwise materially and adversely modified its relationship with the Company
or any of the Company Subsidiaries and, to the Company's knowledge, (i) no
such person has expressed any intention to do so, and (ii) the consummation of
the Transactions will not adversely affect any of such relationships.
 
  5.25 Insurance. The Company and the Company Subsidiaries are covered by
insurance in scope and amount customary and reasonable for the businesses in
which they are engaged. Except as disclosed on Section 5.25 of the Disclosure
Schedule, each insurance policy to which the Company or any of the Company
Subsidiaries is a party is in full force and effect and will not require any
consent as a result of the consummation of the transactions contemplated by
this Agreement. Neither the Company nor any of the Company Subsidiaries is in
material breach or default (including with respect to the payment of premiums
or the giving of notices) under any insurance policy to which it is a party,
and no event has occurred which, with notice or the lapse of
 
                                     A-22
<PAGE>
 
time, would constitute such a material breach or default by the Company or any
of the Company Subsidiaries or would permit termination, modification or
acceleration, under such policies; and the Company has not received any notice
from the insurer disclaiming coverage or reserving rights with respect to any
material claim or any such policy in general.
 
  5.26 Disclosure. The representations, warranties and statements made by the
Company in this Agreement and in the Company Disclosure Schedule and in the
certificates and the Company Disclosure Schedule delivered pursuant hereto do
not contain any untrue statement of a material fact, and, when taken together
with each other and the Company SEC Reports, do not omit to state any material
fact necessary to make such representations, warranties and statements, in
light of the circumstances under which they are made, not misleading.
 
  5.27 Definition of the Company's Knowledge. As used in this Agreement, the
phrase "to the knowledge of the Company" or any similar phrase means, after
due inquiry of the Company's employees, advisors and representatives and
reasonable investigation of the Company's books and records, the actual
knowledge of those individuals identified in Section 5.27 of the Company
Disclosure Schedule.
 
                                  ARTICLE VI
 
                    Conduct of Business Pending the Merger
 
  6.1 Conduct of Business by the Company. During the period from the date of
this Agreement to the Effective Time, except as otherwise contemplated by this
Agreement, the Company shall, and shall cause each of the Company Subsidiaries
to, carry on their respective businesses in the usual, regular and ordinary
course, consistent with past practice, and use their best efforts to preserve
intact their present business organizations, keep available the services of
their present advisors, managers, officers and employees and preserve their
relationships with customers, suppliers, licensors and others having business
dealings with them and continue existing contracts as in effect on the date
hereof (for the term provided in such contracts). Without limiting the
generality of the foregoing, neither the Company nor any of the Company
Subsidiaries will (except as expressly permitted by this Agreement or as
contemplated by the Offer or the Transactions contemplated hereby or to the
extent that Parent shall otherwise consent in writing):
 
  (a) (i) declare, set aside or pay any dividend or other distribution
(whether in cash, stock, or property or any combination thereof) in respect of
any of its capital stock, (ii) split, combine or reclassify any of its capital
stock or (iii) repurchase, redeem or otherwise acquire any of its securities,
except, in the case of clause (iii), for the acquisition of Shares from
holders of Options in full or partial payment of the exercise price payable by
such holders upon exercise of Options outstanding on the date of this
Agreement;
 
  (b) authorize for issuance, issue, sell, deliver or agree or commit to
issue, sell or deliver (whether through the issuance or granting of options,
warrants, commitments, subscriptions, rights to purchase or otherwise) any
stock of any class or any other securities (including indebtedness having the
right to vote) or equity equivalents (including, without limitation, stock
appreciation rights) (other than the issuance of Shares upon the exercise of
Options outstanding on the date of this Agreement in accordance with their
present terms);
 
  (c) acquire, sell, lease, encumber, transfer or dispose of any assets
outside the ordinary course of business which are material to the Company or
any of the Company Subsidiaries (whether by asset acquisition, stock
acquisition or otherwise), except pursuant to obligations in effect on the
date hereof which have been disclosed in writing to Parent and Acquisition Sub
prior to the date hereof and set forth on Schedule 6.1(c) of the Company
Disclosure Schedule;
 
  (d) (i) incur any amount of indebtedness for borrowed money, guarantee any
indebtedness, issue or sell debt securities or warrants or rights to acquire
any debt securities, guarantee (or become liable for) any debt of others, make
any loans, advances or capital contributions, mortgage, pledge or otherwise
encumber any material
 
                                     A-23
<PAGE>
 
assets, create or suffer any material lien thereupon other than in the
ordinary course of business consistent with prior practice or (ii) incur any
short-term indebtedness for borrowed money, except, in each such case,
pursuant to credit facilities in existence on the date hereof which have been
disclosed in writing to Parent and Acquisition Sub prior to the date hereof
and set forth on Schedule 6.1(d) of the Company Disclosure Schedule and as
necessary to carry on the Company's business in the usual, regular and
ordinary course, consistent with past practice;
 
  (e) pay, discharge or satisfy any claims, liabilities or obligations
(absolute, accrued, asserted or unasserted, contingent or otherwise), other
than any payment, discharge or satisfaction (i) in the ordinary course of
business consistent with past practice, or (ii) in connection with the
Transactions;
 
  (f) change any of the accounting principles or practices used by it (except
as required by generally accepted accounting principles, in which case written
notice shall be provided to Parent and Acquisition Sub prior to any such
change);
 
  (g) except as required by law, (i) enter into, adopt, amend or terminate any
Company Benefit Plan, (ii) enter into, adopt, amend or terminate any
agreement, arrangement, plan or policy between the Company or any of the
Company Subsidiaries and one or more of their directors or officers, or (iii)
except for normal increases in the ordinary course of business consistent with
past practice, increase in any manner the compensation or fringe benefits of
any director, officer or employee or pay any benefit not required by any
Company Benefit Plan or arrangement as in effect as of the date hereof;
 
  (h) adopt any amendments to the Company Certificate or the Company Bylaws,
except as expressly provided by the terms of this Agreement;
 
  (i) enter into a new agreement or amend any existing agreement which could
reasonably be expected to have a Company Material Adverse Effect;
 
  (j) adopt a plan of complete or partial liquidation or resolutions providing
for or authorizing such a liquidation or a dissolution, merger, consolidation,
restructuring, recapitalization or reorganization;
 
  (k) enter into or amend, extend or otherwise alter any collective bargaining
agreement;
 
  (l) settle or compromise any litigation (whether or not commenced prior to
the date of this Agreement) other than settlements or compromises or
litigation where the amount paid (after giving effect to insurance proceeds
actually received) in settlement or compromise does not exceed $10,000;
 
  (m) grant any new or modified severance or termination arrangement or
increase or accelerate any benefits payable under its severance or termination
pay policies in effect on the date hereof, except as required under the
present terms of any employment agreement or severance agreement in effect on
the date of this Agreement;
 
  (n) enter into any transaction, contract or arrangement with any affiliate,
except as required under the present terms of any contract or arrangement with
any such affiliate in effect on the date of this Agreement;
 
  (o) enter into any other material agreement outside the ordinary course of
business;
 
  (p) enter into an agreement to take any of the foregoing actions; or
 
  (q) authorize any of, or commit or agree to take any of, or take any
corporate action in furtherance of, any of the foregoing actions.
 
                                     A-24
<PAGE>
 
                                  ARTICLE VII
 
                             Additional Agreements
 
  7.1 Other Filings. As promptly as practicable, the Company, Parent and
Acquisition Sub each shall properly prepare and file any other filings
required under the Exchange Act or any other federal or state law relating to
the Merger and the Transactions (including filings, if any, required under the
HSR Act) (collectively, "Other Filings"). Each of Parent and the Company shall
promptly notify the other of the receipt of any comments on, or any request
for amendments or supplements to, any Other Filings by the Commission or any
other Governmental Entity or official, and each of the Company and Parent
shall supply the other with copies of all correspondence between it and each
of its Subsidiaries and representatives, on the one hand, and the Commission
or the members of its staff or any other appropriate governmental official, on
the other hand, with respect to any of the Other Filings. The Company, Parent
and Acquisition Sub each shall use its respective best efforts to obtain and
furnish the information required to be included in any Other Filings.
 
  7.2 Additional Agreements. Subject to the terms and conditions herein
provided, each of the parties hereto agrees to use its best efforts to take,
or cause to be taken, all actions and to do, or cause to be done, all things
necessary, proper or advisable to consummate and make effective as promptly as
practicable the Transactions contemplated by this Agreement and to cooperate
with each other in connection with the foregoing, including the taking of such
actions as are necessary to obtain any necessary consents, approvals, orders,
exemptions and authorizations by or from any public or private third party,
including without limitation any that are required to be obtained under any
federal, state or local law or regulation or any contract, agreement or
instrument to which the Company or any Company Subsidiary is a party or by
which any of their respective properties or assets are bound, to defend all
lawsuits or other legal proceedings challenging this Agreement or the
consummation of the Transactions, to cause to be lifted or rescinded any
injunction or restraining order or other order adversely affecting the ability
of the parties to consummate the Transactions, and to effect all necessary
registrations and Other Filings, including, but not limited to, filings under
the HSR Act, if any, and submissions of information requested by governmental
authorities. For purposes of the foregoing sentence, the obligation of the
Company, Parent and Acquisition Sub to use their "best efforts" to obtain
waivers, consents and approvals to loan agreements, leases and other contracts
shall not include any obligation to agree to an adverse modification of the
terms of such documents or to prepay or incur additional obligations to such
other parties.
 
  7.3 Fees and Expenses. Except as set forth in Section 9.2 hereof, whether or
not the Merger is consummated, all fees, costs and expenses incurred in
connection with this Agreement and the Transactions shall be paid by the party
incurring such costs or expenses. Notwithstanding the foregoing, upon
consummation of the Merger, Parent may be reimbursed by the Company for all
costs and expenses incurred by Parent and Acquisition Sub in connection with
this Agreement and the Transactions.
 
  7.4 No Solicitations.
 
  (a) Except as explicitly permitted hereunder, the Company shall not, and
shall not authorize or permit any of its officers, directors or employees or
any investment banker, financial advisor, attorney, accountant or other
representative retained by it to, directly or indirectly, (i) solicit,
initiate or encourage (including by way of furnishing non-public information),
or take any other action to facilitate, any inquiries or the making of any
proposal that constitutes, or may reasonably be expected to lead to, an
Acquisition Proposal (as hereinafter defined), or (ii) participate in any
discussions or negotiations regarding an Acquisition Proposal; provided,
however, that if, at any time prior to the approval of this Agreement by the
holders of Company Common Stock, the Company Board determines in good faith,
based on the advice of independent legal counsel, that failure to do so would
be reasonably likely to constitute a breach of its fiduciary duties to the
Company's stockholders under applicable law, the Company, in response to a
bona fide written Acquisition Proposal that (A) was unsolicited or that did
not otherwise result from a breach of this Section 7.4, and (B) is reasonably
likely to lead to a Superior Proposal (as hereinafter defined), may (x)
furnish non-public information with respect to the Company to the person who
made such Acquisition Proposal pursuant to a customary confidentiality
agreement
 
                                     A-25
<PAGE>
 
containing terms no more favorable to such person than those contained in the
Confidentiality Agreement (as hereinafter defined) and (y) participate in
negotiations regarding such Acquisition Proposal. Without limiting the
foregoing, it is understood that any violation of the restrictions set forth
in the preceding sentence by any director or officer of the Company or any of
the Company Subsidiaries or any investment banker, financial advisor,
attorney, accountant or other representative of the Company or any of the
Company Subsidiaries, shall be deemed to be a breach of this Section 7.4 by
the Company.
 
  (b) The Company Board shall not (1) withdraw or modify, or propose to
withdraw or modify, in a manner adverse to Parent or Acquisition Sub, its
approval or recommendation of this Agreement, the Offer or the Merger, (2)
approve or recommend an Acquisition Proposal to its stockholders or (3) cause
the Company to enter into any letter of intent, agreement in principle,
acquisition agreement or other agreement with respect to an Acquisition
Proposal (except for the confidentiality agreement referred to in clause (x)
of Section 7.4(a) hereof) unless there is a Superior Proposal outstanding and
the Company Board shall have (A) determined in good faith, based on the advice
of independent legal counsel, that failure to do so would be reasonably likely
to constitute a breach of its fiduciary duties to the Company's stockholders
under applicable law, and (B) terminated this Agreement pursuant to Section
9.1(c)(ii).
 
  (c) Nothing contained in this Section 7.4 shall prohibit the Company from at
any time taking and disclosing to its stockholders a position contemplated by
Rule 14e-2 promulgated under the Exchange Act; provided, however, that neither
the Company nor the Company Board shall, except as permitted by Section
7.4(b), propose to approve or recommend an Acquisition Proposal.
 
  (d) The Company shall promptly (but in any event within one day) advise
Parent orally and in writing of any Acquisition Proposal (including amendments
or proposed amendments) or any inquiry regarding the making of an Acquisition
Proposal including any request for information, the material terms and
conditions of such request, Acquisition Proposal or inquiry and the identity
of the person making such request, Acquisition Proposal or inquiry. The
Company shall promptly (but in any event within one day) keep Parent fully
informed of the status and details (including amendments or proposed
amendments) of any such request, Acquisition Proposal or inquiry.
 
  (e) As used in this Agreement, the term "Acquisition Proposal" shall mean
any proposed or actual (i) merger, consolidation or similar transaction
involving the Company, (ii) sale, lease or other disposition, directly or
indirectly, by merger, consolidation, share exchange or otherwise, of any
assets of the Company or the Company Subsidiaries representing 15% or more of
the consolidated assets of the Company and the Company Subsidiaries, (iii)
issue, sale or other disposition of (including by way of merger,
consolidation, share exchange or any similar transaction) securities (or
options, rights or warrants to purchase, or securities convertible into, such
securities) representing 15% or more of the votes associated with the
outstanding securities of the Company, (iv) transaction in which any person
shall acquire beneficial ownership (as such term is defined in Rule 13d-3
under the Exchange Act), or the right to acquire beneficial ownership, or any
"group" (as such term is defined under the Exchange Act) shall have been
formed which beneficially owns or has the right to acquire beneficial
ownership of, 15% or more of the outstanding Shares, (v) recapitalization,
restructuring, liquidation, dissolution, or other similar type of transaction
with respect to the Company or (vi) transaction which is similar in form,
substance or purpose to any of the foregoing transactions; provided, however,
that the term "Acquisition Proposal" shall not include the Offer, the Merger
and the Transactions.
 
  (f) As used in this Agreement, a "Superior Proposal" means any bona fide
Acquisition Proposal, which is not subject to the receipt of any necessary
financing and which the Company Board determines in its good faith judgment,
based on the advice from an independent financial advisor, is superior to the
Company's stockholders from a financial point of view to the Offer and the
Merger.
 
  7.5 Officers' and Directors' Indemnification. Parent agrees that all rights
to indemnification existing in favor of, and all limitations on the personal
liability of, the directors, officers, employees and agents of the Company and
the Company Subsidiaries provided for in the Company Certificate or Company
Bylaws as in
 
                                     A-26
<PAGE>
 
effect as of the date hereof with respect to matters occurring prior to the
Effective Time, and including the Offer and the Merger, shall continue in full
force and effect for a period of not less then six (6) years from the
Effective Time; provided, however, that all rights to indemnification in
respect of any claims (a "Claim") asserted or made within such period shall
continue until the disposition of such Claim. At or prior to the Effective
Time, Parent shall purchase directors' and officers' liability insurance
coverage for the Company's directors and officers in a form reasonably
acceptable to the Company which shall provide such directors and officers with
coverage for six (6) years following the Effective Time of not less than the
existing coverage under, and have other terms not materially less favorable to
the insured persons than, the directors' and officers' liability insurance
coverage presently maintained by the Company; provided, however, than in any
event the total aggregate cost of such policy shall not exceed $250,000 (the
"Maximum Amount"); and provided, further, that if such coverage cannot be
obtained for such cost, the Company will maintain, for such six-year period,
the maximum amount of comparable coverage as shall be available for the
Maximum Amount on such terms.
 
  7.6 Access to Information; Confidentiality. From the date hereof until the
Effective Time, the Company shall, and shall cause each of the Company
Subsidiaries and each of the Company's and Company Subsidiaries' officers,
employees and agents to, afford to Parent and to the officers, employees and
agents of Parent complete access at all reasonable times to such officers,
employees, agents, properties, books, records and contracts, and shall furnish
Parent such financial, operating and other data and information as Parent may
reasonably request. Prior to the Effective Time, Parent and Acquisition Sub
shall hold in confidence all such information on the terms and subject to the
conditions contained in that certain confidentiality agreement between
Acquisition Sub and the Company dated August 27, 1998 (the "Confidentiality
Agreement"). The Company hereby waives the provisions of the Confidentiality
Agreement as and to the extent necessary to permit the making and consummation
of the Transactions. Upon the Merger, such Confidentiality Agreement shall
terminate.
 
  7.7 Financial and Other Statements. Notwithstanding anything contained in
Section 7.6, during the term of this Agreement, the Company shall also provide
to Parent the following documents and information:
 
  (a) As soon as reasonably available, but in no event more than 45 days after
the end of each fiscal quarter ending after the date of this Agreement, the
Company will deliver to Parent its Quarterly Report on Form 10-Q as filed
under the Exchange Act. As soon as reasonably available, but in no event more
than 90 days after the end of each fiscal year ending after the date of this
Agreement, the Company will deliver to Parent its Annual Report on Form 10-K,
as filed under the Exchange Act. The Company will also deliver to Parent,
contemporaneously with its being filed with the Commission, a copy of each
Current Report on Form 8-K.
 
  (b) Promptly upon receipt thereof, the Company will furnish to Parent copies
of all internal control reports submitted to the Company or any Company
Subsidiary by independent accountants in connection with each annual, interim
or special audit of the books of the Company or any such Company Subsidiary
made by such accountants.
 
  (c) As soon as practicable, the Company will furnish to Parent copies of all
such financial statements and reports as it or any Company Subsidiary shall
send to its stockholders, the Commission or any other regulatory authority, to
the extent any such reports furnished to any such regulatory authority are not
confidential and except as legally prohibited thereby.
 
  (d) As soon as practicable, the Company will furnish to Parent (i) monthly
profit and loss statements, (ii) a listing of accounts receivable, including
aging, as of the end of each month, (iii) inventory analysis as of the end of
each month, (iv) a listing of accounts payable, including aging, as of the end
of each month, and (v) such additional financial data as Parent may reasonably
request.
 
  7.8 Right to Board Materials. From the date hereof until the earlier to
occur of the consummation of the Offer or the termination of this Agreement in
accordance with its terms, the Company shall provide Parent and Acquisition
Sub copies of all notices, minutes, consents and other written materials that
it provides to its directors; provided, however, that Parent and Acquisition
Sub shall hold in confidence all information so
 
                                     A-27
<PAGE>
 
provided; provided further, however, that the Company shall not be obligated
to provide any such materials concerning the transactions contemplated hereby
or by any Acquisition Proposal (other than as contemplated by Section 7.4
hereof).
 
  7.9 Advice of Change. Each party will promptly advise the other of (i) any
change or the occurrence or non-occurrence of any event that has had or could
reasonably be expected to have a Company Material Adverse Effect or a Parent
Material Adverse Effect, as the case may be, or which could be reasonably
likely to cause any representation or warranty contained in this Agreement to
be untrue or inaccurate under circumstances in which such untruth or
inaccuracy is reasonably likely to result in the condition to the Offer set
forth in paragraph (c) of Annex A hereto to fail to be satisfied, and (ii) any
failure of such party to comply with or satisfy any covenant, condition or
agreement to be complied with or satisfied by it under this Agreement under
circumstances in which such failure is reasonably likely to result in the
condition to the Offer set forth in paragraph (e) of Annex A hereto to fail to
be satisfied.
 
  7.10 Public Announcements. The Company and Parent shall consult with each
other before issuing any press release or otherwise making any public
statements with respect to this Agreement or any of the Transactions and shall
not issue any such press release or make any such public statement without the
prior consent of the other party, which consent shall not be unreasonably
withheld; provided, however, that a party may, without the prior consent of
the other party, issue such press release or make such public statement as may
be required by law or the applicable rules of any stock exchange or of Nasdaq
if it has used its best efforts to consult with the other party and to obtain
such party's consent but has been unable to do so in a timely manner. In this
regard, the parties shall make a joint public announcement of the Offer and
the Transactions contemplated thereby no later than (i) the close of trading
on the Nasdaq Stock Market on the day this Agreement is signed, if such
signing occur during a business day or (ii) the opening of trading on the
Nasdaq Stock Market on the business day following the date on which this
Agreement is signed, if such signing does not occur during a business day.
 
  7.11 Employee Benefit Arrangements
 
  (a) Except as may otherwise be agreed to by the parties thereto, after the
Closing Parent shall cause Acquisition Sub or the Company to honor all
obligations under the existing terms of the employment and severance
agreements to which the Company or any Company Subsidiary is presently a
party. For a period of up to twelve months following the Effective Time as
determined by Parent in its sole discretion (the "Transition Period"),
employees of the Company will continue to participate in the employee benefit
plans of the Company on substantially similar terms to those currently in
effect. Following the Transition Period, the Company's employees will be
permitted to participate in the employees benefit plans of Parent as in effect
on the date thereof on terms substantially similar to those provided to
employees of Parent. Nothing contained in this Section 7.11 shall be construed
to grant any right of continued employment to any present employee of the
Company or any of the Company Subsidiaries.
 
  (b) If any employee of the Company or any of the Company Subsidiaries
becomes a participant in any employee benefit plan, practice or policy of
Parent, any of its affiliates or the Surviving Corporation, such employee
shall be given credit under such plan for all service prior to the Effective
Time with the Company and the Company Subsidiaries and prior to the time such
employee becomes such a participant, for purpose of eligibility (including,
without limitation, waiting periods) and vesting but not for any other
purposes for which such service is either taken into account or recognized
(including, without limitation, benefit accrual); provided, however, that such
employees will be given credit for such service for purposes of any vacation
policy. In addition, if any employees of the Company or any of the Company
Subsidiaries employed as of the Closing Date become covered by a medical plan
of Parent, any of its affiliates or the Surviving Corporation, such medical
plan shall not impose any exclusion on coverage for preexisting medical
conditions with respect to these employees.
 
 
                                     A-28
<PAGE>
 
                                 ARTICLE VIII
 
                           Conditions to the Merger
 
  8.1 Conditions to the Obligations of Each Party to Effect the Merger. The
respective obligations of each party to effect the Merger shall be subject to
the fulfillment or waiver, where permissible, at or prior to the Closing Date,
of each of the following conditions:
 
  (a) Stockholder Approval. If required by applicable law, this Agreement and
the Transactions, including the Merger, shall have been approved and adopted
by the affirmative vote of the stockholders of the Company to the extent
required by the DGCL and the Company Certificate.
 
  (b) Hart-Scott-Rodino Act. Any waiting period (and any extension thereof)
applicable to the consummation of the Merger under the HSR Act shall have
expired or been terminated.
 
  (c) Other Regulatory Approvals. All necessary approvals, authorizations and
consents of any governmental or regulatory entity required to consummate the
Merger shall have been obtained and remain in full force and effect, and all
waiting periods relating to such approvals, authorizations and consents shall
have expired or been terminated.
 
  (d) No Injunctions, Orders or Restraints; Illegality. No preliminary or
permanent injunction or other order, decree or ruling issued by a court of
competent jurisdiction or by a governmental, regulatory or administrative
agency or commission nor any statute, rule, regulation or executive order
promulgated or enacted by any governmental authority shall be in effect which
would (i) make the consummation of the Merger illegal, or (ii) otherwise
restrict, prevent or prohibit the consummation of any of the Transactions,
including the Merger.
 
  (e) Purchase of Shares in Offer. Parent, Acquisition Sub or their affiliates
shall have purchased Shares pursuant to the Offer.
 
                                  ARTICLE IX
 
                       Termination, Amendment and Waiver
 
  9.1 Termination. This Agreement may be terminated at any time prior to the
Effective Time, whether before or after stockholder approval thereof:
 
  (a) by the mutual written consent of the Parent or Acquisition Sub and the
Company.
 
  (b) by either of the Company or the Parent or the Acquisition Sub:
 
    (i) if the Offer is terminated, withdrawn or expires pursuant to its
  terms without any Shares having been purchased thereunder; provided,
  however, that neither Parent, Acquisition Sub nor the Company may terminate
  this Agreement pursuant to this Section 9.1 (b) (i) if such party has
  materially breached this Agreement; or
 
    (ii) if any Governmental Entity shall have issued an order, decree or
  ruling or taken any other action (which order, decree, ruling or other
  action the parties hereto shall use their best efforts to lift), which
  permanently restrains, enjoins or otherwise prohibits the acceptance for
  payment of, or payment for, Shares pursuant to the Offer or the Merger.
 
  (c) by the Company:
 
    (i) if (x) Parent or Acquisition Sub shall have failed to commence the
  Offer on or prior to five business days following the date of the initial
  public announcement of the Offer; or (y) Parent or Acquisition Sub shall
  not have purchased Shares pursuant to the Offer by December 31, 1998; or
  (z) the Offer shall have been terminated without Parent or Acquisition Sub
  having purchased any Shares in the Offer.
 
                                     A-29
<PAGE>
 
    (ii) in connection with entering into a definitive agreement to effect a
  Superior Proposal in accordance with Section 7.4(b)(3) hereof; provided,
  however, that the Company shall provide Parent with written notice not
  later than 12:00 noon two business days in advance of any date that it
  intends to exercise its termination rights and enter into such agreement
  (which notice shall specify proposed terms of such agreement and the
  identity of the persons making such proposal); and provided further,
  however, that prior to any such termination pursuant to this Section
  9.1(c)(ii) the Company shall have made all payments to Parent required by
  Section 9.2(b); or
 
    (iii) if Parent or Acquisition Sub shall have breached in any material
  respect any of their respective representations, warranties, covenants or
  other agreements contained in this Agreement, which breach cannot be or has
  not been cured within 15 days after the giving of written notice to Parent
  or Acquisition Sub except, in any case, for such breaches which are not
  reasonably likely to affect adversely Parent's or Acquisition Sub's ability
  to consummate the Offer or the Merger, provided, however, that no cure
  period shall be applicable under any circumstances to the matters set forth
  in Section 9.1(c)(i).
 
  (d) by the Parent or Acquisition Sub:
 
    (i) if, prior to the commencement of the Offer, due to an occurrence that
  if occurring after the commencement of the Offer would result in a failure
  to satisfy any of the conditions set forth in Annex A hereto under
  circumstances in which such failure could not reasonably be expected to be
  cured within 15 days after the giving of written notice by Parent or
  Acquisition Sub, Parent or Acquisition Sub shall have failed to commence
  the Offer on or prior to five business days following the date of the
  initial public announcement of the Offer;
 
    (ii) if, prior to the purchase of Shares pursuant to the Offer, the
  Company shall have breached any representation, warranty, covenant or other
  agreement contained in this Agreement which breach (A) would give rise to
  the failure of a condition set forth in paragraph (c) or (e) of Annex A
  hereto, and (B) cannot be or has not been cured within 15 days after the
  giving of written notice to the Company; or
 
    (iii) if, prior to the purchase of Shares pursuant to the Offer, Parent
  or Acquisition Sub is entitled to terminate the Offer as a result of (x)
  the occurrence of any event set forth in Annex A hereto, or (y) in the case
  of the conditions set forth in paragraph (c) or (e) of Annex A hereto, the
  failure of any such condition under circumstances in which such failure
  could not reasonably be expected to be cured within 15 days after the
  giving of written notice to the Company.
 
  9.2 Effect of Termination.
 
  (a) In the event of the termination of this Agreement pursuant to Section
9.1 hereof, this Agreement shall forthwith become null and void and have no
effect, without any liability on the part of any party hereto or its
affiliates, trustees, directors, officers or stockholders and all rights and
obligations of any party hereto shall cease except for the agreements
contained in Sections 7.3, 9 and 10; provided, however, that nothing contained
in this Section 9.2 shall relieve any party from liability for any fraud or
willful breach of this Agreement.
 
  (b) If (i) Parent and Acquisition Sub terminate this Agreement pursuant to
Section 9.1(d)(ii) by reason of a willful breach by the Company or (ii) the
Company terminates this Agreement pursuant to Section 9.1(c)(ii), then the
Company shall pay to Parent an amount in cash equal to the sum of (x)
$2,000,000 (the "Termination Fee"), plus (y) Parent's out-of-pocket costs and
expenses in connection with this Agreement and the Transactions, including
without limitation, fees and disbursements of its outside legal counsel,
investment bankers, accountants and other consultants retained by or on behalf
of Parent together with the other out-of-pocket costs incurred by it in
connection with analyzing, structuring, participating in the negotiations of
the terms and conditions, arranging financing, conducting due diligence and
other activities related to the Offer and the Merger and the Transactions,
including, without limitation, commitment fees paid to potential lenders
(collectively, the "Parent Expenses"); provided, however, that the aggregate
amount of all Parent Expenses to be reimbursed by the Company shall not exceed
$1,000,000.
 
                                     A-30
<PAGE>
 
  (c) Any payment required by this Section 9.2 shall be payable by the Company
to Parent by wire transfer of immediately available funds to an account
designated by Parent and, in the case of any termination by Parent or
Acquisition Sub contemplated by Section 9.2(b)(i), shall be payable within two
days after demand therefor is made by Parent. The parties acknowledge and
agree that the provisions of this Section 9.2 are included herein in order to
induce Parent and Acquisition Sub to enter into this Agreement and to
reimburse Parent and Acquisition Sub for incurring the costs and expenses
related to entering into this Agreement and consummating the Transactions. In
the event that the Company shall fail to pay the Termination Fee and Parent
Expenses when due, the terms "Termination Fee" and "Parent Expenses" shall be
deemed to include (i) interest on such unpaid Termination Fee and Parent
Expenses, commencing on the date such amount or amounts become due, at a rate
per annum equal to the rate of interest publicly announced by Citibank, N.A.
from time to time, in the City of New York, as such bank's Prime Rate, and
(ii) any and all costs and expenses (including without limitation attorneys'
fees and disbursements) incurred by Parent and/or Acquisition Sub in enforcing
their rights under this Section 9.2.
 
  9.3 Amendment. This Agreement may be amended by the parties hereto by an
instrument in writing signed on behalf of each of the parties hereto at any
time before or after any approval hereof by the stockholders of the Company
and Acquisition Sub, but in any event following authorization by the
Acquisition Sub Board and the Company Board; provided, however, that after any
such stockholder approval, no amendment shall be made which by law requires
further approval by stockholders without obtaining such approval.
 
  9.4 Extension; Waiver. At any time prior to the Closing, the parties hereto
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 contained herein or in
any document delivered pursuant hereto and (iii) waive compliance with any of
the agreements or conditions 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 a written instrument signed on behalf of such party.
 
                                   ARTICLE X
 
                              General Provisions
 
  10.1 Notices. All notices and other communications given or made pursuant
hereto shall be in writing and shall be deemed to have been duly given or made
as of the date delivered or sent if delivered personally or sent by cable,
telegram, telecopier or telex or sent by prepaid overnight carrier to the
parties at the following addresses (or at such other addresses as shall be
specified by the parties by like notice):
 
    (a) if to Parent or Acquisition Sub:
 
      Logica Inc.
      32 Hartwell Avenue
      Lexington, MA 02421
 
      with a copy to:
 
      Goodwin, Procter & Hoar llp
      Exchange Place
      Boston, Massachusetts 02109
      Attn: Thomas P. Storer, P.C.
              Joseph L. Johnson III, Esq.
 
    (b) if to the Company:
 
      Carnegie Group, Inc.
      Five PPG Place
      Pittsburgh, PA 15222
 
                                     A-31
<PAGE>
 
      with a copy to:
 
      Morgan, Lewis & Bockius, LLP
      One Oxford Center
      32nd Floor
      Pittsburgh, PA 15219
      Attn: Marlee Myers, Esq.
 
  10.2 Interpretation. When a reference is made in this Agreement to
subsidiaries of Parent, Acquisition Sub or the Company, the word "Subsidiary"
means any corporation more than 50% of whose outstanding voting securities, or
any partnership, joint venture or other entity more than 50% of whose total
equity interest, is directly or indirectly owned by Parent, Acquisition Sub or
the Company, as the case may be. The headings contained in this Agreement are
for reference purposes only and shall not affect in any way the meaning or
interpretation of this Agreement.
 
  10.3 Non-Survival of Representations, Warranties, Covenants and
Agreements. Except for Section 7.3, 7.5, 7.6 (except as provided therein),
7.11 and 10.7 none of the representations, warranties, covenants and
agreements contained in this Agreement or in any instrument delivered pursuant
to this Agreement shall survive the Effective Time, and thereafter there shall
be no liability on the part of either Parent, Acquisition Sub or the Company
or any of their respective officers, directors or stockholders in respect
thereof. Except as expressly set forth in this Agreement, there are no
representations or warranties of any party hereto, express or implied.
 
  10.4 Miscellaneous. This Agreement (i) constitutes, together with the
Confidentiality Agreement, Annex A hereto, the Company Disclosure Letter and
the schedule referred to in Section 4.3 hereof, the entire agreement and
supersedes all of the prior agreements and understandings, both written and
oral, among the parties, or any of them, with respect to the subject matter
hereof, (ii) shall be binding upon and inure to the benefits of the parties
hereto and their respective successors and assigns and is not intended to
confer upon any other person (except as set forth below) any rights or
remedies hereunder and (iii) may be executed in two or more counterparts which
together shall constitute a single agreement. Section 7.5 and Section 7.11 are
intended to be for the benefit of those persons described therein and the
covenants contained therein may be enforced by such persons. The parties
hereto agree that irreparable damage would occur in the event that any of the
provisions of this Agreement were not performed in accordance with their
specific terms or were otherwise breached. It is accordingly agreed that the
parties shall be entitled to an injunction or injunctions to prevent breaches
of this Agreement and to enforce specifically the terms and provisions hereof
in the Delaware Courts (as hereinafter defined), this being in addition to any
other remedy to which they are entitled at law or in equity.
 
  10.5 Assignment. Except as expressly permitted by the terms hereof, neither
this Agreement nor any of the rights, interests or obligations hereunder shall
be assigned by any of the parties hereto without the prior written consent of
the other parties.
 
  10.6 Severability. If any provision of this Agreement, or the application
thereof to any person or circumstance is held invalid or unenforceable, the
remainder of this Agreement, and the application of such provision to other
persons or circumstances, shall not be affected thereby, and to such end, the
provisions of this Agreement are agreed to be severable.
 
  10.7 Choice of Law/Consent to Jurisdiction. 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. Each of the Company, Parent and
Acquisition Sub hereby irrevocably and unconditionally consents to submit to
the exclusive jurisdiction of the courts of the State of Delaware and of the
United States of America located in the State of Delaware (the "Delaware
Courts") for any litigation arising out of or relating to this Agreement and
the Transactions (and agrees not to commence any litigation relating thereto
except in such courts), waives any objection to the laying of venue of any
such litigation in the Delaware Courts and agrees not to plead or claim in any
Delaware Court that such litigation brought therein has been brought in any
inconvenient forum. Each of the
 
                                     A-32
<PAGE>
 
parties hereto agrees, (a) to the extent such party is not otherwise subject
to service of process in the State of Delaware, to appoint and maintain an
agent in the State of Delaware as such party's agent for acceptance of legal
process, and (b) that service of process may also be made on such party by
prepaid certified mail with a proof of mailing receipt validated by the United
States Postal Service constituting evidence of valid service. Service made
pursuant to (a) or (b) above shall have the same legal force and effect as if
served upon such party personally within the State of Delaware. For purposes
of implementing the parties' agreement to appoint and maintain an agent for
service of process in the State of Delaware, each such party does hereby
appoint The Corporation Trust Company, 1209 Orange Street, Wilmington, New
Castle County, Delaware 19801, as such agent.
 
  10.8 Counterparts. This Agreement may be signed in any number of
counterparts, each of which shall be an original, with the same effect as if
the signatures thereto and hereto were upon the same instrument.
 
  10.9 No Agreement Until Executed. Irrespective of negotiations among the
parties or the exchanging of drafts of this Agreement, this Agreement shall
not constitute or be deemed to evidence a contract, agreement, arrangement or
understanding among the parties hereto unless and until (i) the Board of
Directors of the Company has approved, for purposes of Section 203 of the
Delaware General Corporation Law and any applicable provision of the Company's
certificate of incorporation, the terms of this Agreement, and (ii) this
Agreement is executed by the parties hereto.
 
                                     A-33
<PAGE>
 
  In Witness Whereof, Parent, Acquisition Sub and the Company have caused this
Agreement to be executed as of the date first written above by their respective
officers thereunto duly authorized.
 
                                          Logica Inc.
 
                                                    /s/ Corey Torrence
                                          By: _________________________________
                                            Name: Corey Torrence
                                            Title:President and Chief
                                           Executive Officer
 
                                          Logica Acquisition Corp.
 
                                                    /s/ Corey Torrence
                                          By: _________________________________
                                            Name: Corey Torrence
                                            Title:President
 
                                          Carnegie Group, Inc.
 
                                                   /s/ Dennis Yablonsky
                                          By: _________________________________
                                            Name: Dennis Yablonsky
                                            Title:President and Chief
                                           Executive Officer
 
                                      A-34
<PAGE>
 
                                                                        ANNEX A
 
                               OFFER CONDITIONS
 
  The capitalized terms used in this Annex A have the meanings set forth in
the attached Agreement, except that the term "Agreement" shall be deemed to
refer to the attached Agreement attached together with this Annex A.
 
  Notwithstanding any other provision of the Offer or the Agreement and
subject to Rule 14c-1(c) under the Exchange Act, Acquisition Sub shall not be
required to accept for payment or pay for any Shares and may delay the
acceptance for payment of and payment for any Shares and may amend or
terminate the Offer and not accept for payment any Shares, if (i) there shall
not have been validly tendered to Acquisition Sub pursuant to the Offer and
not withdrawn immediately prior to the expiration of the Offer, at least that
number of Shares that, when taken as a whole with all other Shares owned or
acquired by Acquisition Sub (whether pursuant to the Offer or otherwise),
constitutes at least that number of Shares on a fully diluted basis
constituting the Minimum Percentage (the "Minimum Condition"), (ii) prior to
the time of payment for any such Shares, any applicable waiting period (and
any extension thereof) under the HSR Act in respect of the Offer shall not
have expired or been terminated, or (iii) at any time on or after the date of
the Agreement, and prior to the acceptance for payment of Shares or the
payment therefor any of the following conditions exist or shall occur or
remain in effect:
 
    (a) There shall have been any statute, rule, regulation, order or
  injunction enacted, promulgated, entered or enforced by any state or
  federal government or governmental authority or by any United States or
  state court of competent jurisdiction (a "Governmental Entity") which (i)
  restrains or prohibits the making of the Offer or the Closing, (ii)
  restricts, prevents or prohibits the ownership or operation by Parent (or
  any Parent Subsidiaries) of any portion of the Company's or the Company
  Subsidiaries' business, properties or assets which is material to the
  Company as a whole, or compels Parent (or any Parent Subsidiaries) to
  dispose of or hold separate any portion of the Company's or the Company
  Subsidiaries' business, properties or assets which is material to the
  Company as a whole, (iii) imposes any material limitation on the ability of
  Parent or Acquisition Sub effectively to acquire or to hold or to exercise
  full rights of ownership of the Shares, including, without limitation, the
  right to vote the Shares purchased by Parent or Acquisition Sub on all
  matters presented to the stockholders of the Company, (iv) imposes any
  limitations on the ability of Parent or Parent Subsidiaries to control in
  any material respect the business, properties and operations of the
  Company, or (v) which otherwise results in a Company Material Adverse
  Effect;
 
    (b) There shall have occurred (i) any general suspension of trading in,
  or limitation on prices for, securities on the New York Stock Exchange, the
  American Stock Exchange or Nasdaq which shall continue for more than 24
  hours, (ii) the declaration of a banking moratorium or any suspension of
  payments in respect of banks in the United States or the United Kingdom
  (whether or not mandatory), (iii) the commencement of a war, armed
  hostilities or other international or national calamity directly or
  indirectly involving the United States or the United Kingdom which has a
  material adverse effect on Parent PLC's ability to borrow sufficient funds
  under its bank facilities to purchase and pay for the Shares pursuant to
  the Offer and the Merger in accordance with the terms of the Merger
  Agreement, or (iv) any limitation (whether or not mandatory) by any United
  States or United Kingdom governmental authority or agency on the extension
  of credit by banks or other financial institutions which has a material
  adverse effect on Parent PLC's ability to borrow sufficient funds under its
  bank facilities to purchase and pay for the Shares pursuant to the Offer
  and the Merger in accordance with the terms of the Merger Agreement;
 
    (c) Any of the representations and warranties of the Company set forth in
  the Agreement (i) specifically concerning the Customer Contracts in Section
  5.21 hereof or (ii) that are qualified as to Company Material Adverse
  Effect shall not have been, or shall cease to be, true and correct (whether
  because of circumstances or events occurring in whole or in part prior to,
  on or after the date of the Agreement) or any of the representations and
  warranties of the Company set forth in the Agreement that are not so
  qualified shall not have been, or cease to be, true and correct (whether
  because of circumstances or events occurring in whole or in part prior to,
  on or after the date of the Agreement) under circumstances in which such
  failure to be true and correct results in a Company Material Adverse
  Effect;
 
                                     A-35
<PAGE>
 
    (d) Since the date of the Agreement, there has occurred any change that,
  when taken together with all other such changes, has a Company Material
  Adverse Effect;
 
    (e) The Company shall not have performed all obligations required to be
  performed by it under the Agreement, including, without limitation, the
  covenants contained in Article 2, 6 or 7 thereof, except where any failure
  to perform (i) would, individually or in the aggregate, not materially
  impair or significantly delay the ability of Acquisition Sub to consummate
  the Offer; (ii) has been caused by or results from a material breach of
  this Agreement by Parent or Acquisition Sub; or (iii) does not have a
  Company Material Adverse Effect (provided, however, that the foregoing
  exceptions shall not apply to the covenants contained in Article 2);
 
    (f) The Agreement shall have been terminated in accordance with its
  terms;
 
    (g) A tender or exchange offer for some portion of or all the Shares
  shall have been publicly proposed to be made or shall have been made by
  another person with respect to the Shares;
 
    (h) Parent shall have learned that any person, entity or "group" (within
  the meaning of Section 13(d) of the Exchange Act) shall have acquired
  beneficial ownership of more than 5% of the Shares, through the acquisition
  of Shares, the formation of a group or otherwise, or shall have been
  granted any right, option or warrant, conditional or otherwise, to acquire
  ownership of more than 5% of the Shares; provided, however, that the
  acquisition of beneficial ownership of more than 5% of the Shares but less
  than 15% of the Shares by any such person, entity or "group" as
  contemplated by the foregoing shall not be deemed a failure of this
  condition provided that such Shares were acquired and are held by such
  person, entity or "group" solely as a passive investment and not (x) with a
  purpose or effect of changing or influencing control of the Company, or (y)
  in connection with or as a participant in any transaction having that
  purpose or effect, in each case other than the Offer;
 
    (i) Any consent, authorization, order or approval of (or filing or
  registration with) any governmental commission, board, other regulatory
  body or other third party required to be made or obtained by the Company or
  any of the Company Subsidiaries or affiliates in connection with the
  execution, delivery and performance of this Agreement shall not have been
  obtained or made, except where the failure to have obtained or made any
  such consent, authorization, order, approval, filing or registration, would
  not have a Company Material Adverse Effect;
 
    (j) Any Principal Stockholder who has executed a Tender Agreement shall
  have failed to tender his or her Shares or the option set forth in
  Paragraph 3 of any of the Tender Agreements shall not be in full force and
  effect in accordance with the terms thereof, or any United States federal
  or state court of competent jurisdiction shall have issued an injunction or
  taken any other action permanently restraining, enjoining or otherwise
  prohibiting the enforcement of any of the terms of any Tender Agreement.
 
    (k) The Company is unable to obtain waivers (on terms reasonably
  satisfactory to Parent and Acquisition Sub) with respect to any default,
  termination, acceleration of payment or performance or modification clause
  contained in any contract, agreement, commitment, or lease, to which the
  Company or any of the Company Subsidiaries is a party or by which the
  Company or any of the Company Subsidiaries, or their respective properties
  or assets is bound, except where the failure to have so obtained such
  waiver or waivers does not have a Company Material Adverse Effect.
 
  The foregoing conditions (i) may be asserted by Parent or Acquisition Sub
regardless of the circumstances (including any action or inaction by Parent or
Acquisition Sub or any of its affiliates other than a material breach of the
Agreement), and (ii) are for the sole benefit of Parent, Acquisition Sub and
their respective affiliates. The foregoing conditions may be waived by Parent,
in whole or in part, at any time and from time to time, in the sole discretion
of Parent. The foregoing conditions may be considered to be material to the
Offer. The failure by Parent or Acquisition Sub at any time to exercise any of
the foregoing rights will not be deemed a waiver of any right and each right
will be deemed an ongoing right which may be asserted at any time and from
time to time.
 
  Should the Offer be terminated due to the foregoing provisions, all tendered
Shares not theretofore accepted for payment shall promptly be returned to the
tendering stockholders.
 
                                     A-36

<PAGE>
 
                               TENDER AGREEMENT
 
  Agreement, dated as of September 30, 1998, among Logica Inc., a Delaware
corporation ("Parent"), Logica Acquisition Corp., a Delaware corporation and a
wholly owned subsidiary of Parent (the "Purchaser"), Carnegie Group, Inc., a
Delaware corporation (the "Company"), and the stockholders of the Company
signatory hereto (collectively referred to herein as the "Stockholders" and
each, a "Stockholder").
 
                                  Witnesseth:
 
  Whereas, concurrently with the execution and delivery of this Agreement,
Parent, the Purchaser and the Company, have entered into an Agreement and Plan
of Merger (as such agreement may hereafter be amended from time to time, the
"Merger Agreement"), pursuant to which Purchaser will be merged with and into
the Company (the "Merger");
 
  Whereas, in furtherance of the Merger, Parent and the Company desire that as
soon as practicable (and not later than five business days) after the
execution and delivery of the Merger Agreement, the Purchaser shall commence a
cash tender offer (the "Offer") to purchase at a price of $5.00 per share all
outstanding shares of Company Common Stock (as defined in Section 1 hereof)
including all of the Shares (as defined in Section 2 hereof) beneficially
owned by Stockholders; and
 
  Whereas, as an inducement and a condition to entering into the Merger
Agreement, Parent has required that the Stockholders agree, and the
Stockholders have agreed, to enter into this Agreement;
 
  Now, Therefore, in consideration of the foregoing and the mutual
representations, warranties, covenants and agreements contained herein, the
parties hereto agree as follows:
 
  1. Definitions. For purposes of this Agreement:
 
  (a) "Beneficially Own" or "Beneficial Ownership" with respect to any
securities shall mean having "beneficial ownership" of such securities (as
determined pursuant to Rule 13d-3 under the Securities Exchange Act of 1934,
as amended (the "Exchange Act").
 
  (b) "Company Common Stock" shall mean at any time the Common Stock, par
value $.01 per share, of the Company.
 
  (c) "Person" shall mean an individual, corporation, partnership, joint
venture, association, trust, unincorporated organization or other entity.
 
  (d) Capitalized terms used and not defined herein have the respective
meanings ascribed to them in the Merger Agreement.
 
  2. Tender of Shares.
 
  (a) In order to induce Parent and the Purchaser to enter into the Merger
Agreement, each of the Stockholders hereby agrees to validly tender (or cause
the record owner of such shares to validly tender), and not to withdraw,
pursuant to and in accordance with the terms of the Offer, not later than the
fifth business day after commencement of the Offer pursuant to Section 1.1 of
the Merger Agreement and Rule 14d-2 under the Exchange Act, the number of
shares of Company Common Stock set forth opposite such Stockholder's name on
Schedule I hereto (the "Existing Shares", and together with any shares
acquired by such Stockholder in any capacity after the date hereof and prior
to the termination of this Agreement whether upon the exercise of Options or
by means of purchase, dividend, distribution or otherwise, the "Shares"), all
of which are Beneficially Owned by such Stockholder. Each Stockholder hereby
acknowledges and agrees that Parent's and the Purchaser's obligation to accept
for payment and pay for the Shares in the Offer, including the Shares
Beneficially Owned by such Stockholder, is subject to the terms and conditions
of the Offer.
 
                                      D-1
<PAGE>
 
  (b) Upon acceptance and payment therefor by Purchaser, the transfer by the
Stockholders of the Shares to Purchaser in the Offer shall pass to and
unconditionally vest in the Purchaser good and valid title to the Shares, free
and clear of all Encumbrances.
 
  (c) The Stockholders hereby permit Parent and the Purchaser to publish and
disclose in the Offer Documents and, if approval of the Company's stockholders
is required under applicable law, the Proxy Statement (including all documents
and schedules filed with the SEC), their identity and ownership of the Shares
and the nature of their commitments, arrangements and understandings under
this Agreement.
 
  3. Option to Acquire Shares. In order to induce Parent and the Purchaser to
enter into the Merger Agreement, each Stockholder hereby grants to Parent an
irrevocable option (a "Stock Option") to purchase such Stockholder's Shares
(the "Option Shares") at an amount (the "Purchase Price") equal to the Offer
Price. If (i) the Offer is terminated, abandoned or withdrawn by Parent or the
Purchaser due to the failure of paragraph (g) or (h) of the conditions set
forth in Annex A to the Merger Agreement, or (ii) the Merger Agreement is
terminated by the Company pursuant to Section 9.1(c)(ii) thereof, each Stock
Option shall, in any such case, become exercisable, in whole or in part, upon
the first to occur of any such event and remain exercisable in whole or in
part until the date which is 60 days after the date of the occurrence of such
event (the "60 Day Period"), so long as: (i) all waiting periods under the HSR
Act required for the purchase of the Option Shares upon such exercise shall
have expired or been waived, and (ii) there shall not be in effect any
preliminary or final injunction or other order issued by any Governmental
Entity prohibiting the exercise of the Stock Options pursuant to this
Agreement; provided, however, that if all HSR Act waiting periods shall not
have expired or been waived or there shall be in effect any such injunction or
order, in each case on the expiration of the 60 Day Period, the 60 Day Period
shall be extended until five (5) business days after the later of (A) the date
of expiration or waiver of all HSR Act waiting periods or (B) the date of
removal or lifting of such injunction or order. In the event that Parent
wishes to exercise a Stock Option, Parent shall send a written notice (the
"Notice") to the Stockholders identifying the place and date (not less than
two nor more than five (5) business days from the date of the Notice) for the
closing of such purchase.
 
  4. Additional Agreements.
 
  (a) Voting Agreement. Each Stockholder shall, at any meeting of the holders
of Company Common Stock, however called, or in connection with any written
consent of the holders of Company Common Stock, vote (or cause to be voted)
the Shares (if any) then held of record or Beneficially Owned by such
Stockholder, (i) in favor of the Merger, the execution and delivery by the
Company of the Merger Agreement and the approval of the terms thereof and each
of the other actions contemplated by the Merger Agreement and this Agreement
and any actions required in furtherance thereof and hereof; and (ii) against
any Acquisition Proposal and against any action or agreement that would
impede, frustrate, prevent or nullify this Agreement, or result in a breach in
any respect of any covenant, representation or warranty or any other
obligation or agreement of the Company under the Merger Agreement or which
would result in any of the conditions set forth in Annex A to the Merger
Agreement or set forth in Article VIII of the Merger Agreement not being
fulfilled.
 
  (b) No Inconsistent Arrangements. Each of the Stockholders hereby covenants
and agrees that, except as contemplated by this Agreement and the Merger
Agreement, it shall not (i) transfer (which term shall include, without
limitation, any sale, gift, pledge or other disposition), or consent to any
transfer of, any or all of such Stockholder's Shares, Options or any interest
therein, (ii) enter into any contract, option or other agreement or
understanding with respect to any transfer of any or all of such Shares,
Options or any interest therein, (iii) grant any proxy, power-of-attorney or
other authorization in or with respect to such Shares or Options, (iv) deposit
such Shares or Options into a voting trust or enter into a voting agreement or
arrangement with respect to such Shares or Options, or (v) take any other
action that would in any way restrict, limit or interfere with the performance
of its obligations hereunder or the transactions contemplated hereby or by the
Merger Agreement.
 
  (c) Grant of Irrevocable Proxy; Appointment of Proxy.
 
 
                                      D-2
<PAGE>
 
    (i) Each Stockholder hereby irrevocably grants to, and appoints, Parent,
  Corey Torrence and Doug Webb, or either of them, in their respective
  capacities as officers of Parent, and any individual who shall hereafter
  succeed to any such office of Parent, and each of them individually, such
  Stockholder's proxy and attorney-in-fact (with full power of substitution),
  for and in the name, place and stead of such Stockholder, to vote such
  Stockholder's Shares, or grant a consent or approval in respect of the
  Shares in favor of any or all of the Transactions and against any
  Acquisition Proposal.
 
    (ii) Each Stockholder represents that any proxies heretofore given in
  respect of such Stockholder's Shares are not irrevocable, and that any such
  proxies are hereby revoked.
 
    (iii) Each Stockholder understands and acknowledges that Parent is
  entering into the Merger Agreement in reliance upon such Stockholder's
  execution and delivery of this Agreement. Each Stockholder hereby affirms
  that the irrevocable proxy set forth in this Section 4(c) is given in
  connection with the execution of the Merger Agreement, and that such
  irrevocable proxy is given to secure the performance of the duties of such
  Stockholder under this Agreement. Each Stockholder hereby further affirms
  that the irrevocable proxy is coupled with an interest and may under no
  circumstances be revoked. Each Stockholder hereby ratifies and confirms all
  that such irrevocable proxy may lawfully do or cause to be done by virtue
  hereof. Such irrevocable proxy is executed and intended to be irrevocable
  in accordance with the provisions of Section 212(e) of the Delaware General
  Corporation Law.
 
  (d) No Solicitation. Each Stockholder hereby agrees, in the capacity as a
Stockholder or otherwise, that neither such Stockholder nor any of its
Subsidiaries or affiliates shall (and such Stockholder shall use its best
efforts to cause its officers, directors, employees, representatives and
agents, including, but not limited to, investment bankers, attorneys and
accountants, not to), directly or indirectly, encourage, solicit, participate
in or initiate discussions or negotiations with, or provide any information
to, any corporation, partnership, person or other entity or group (other than
Parent, any of its affiliates or representatives) concerning any Acquisition
Proposal or take any other action prohibited by Section 7.4 of the Merger
Agreement. Each Stockholder will immediately cease any existing activities,
discussions or negotiations with any parties conducted heretofore with respect
to any Acquisition Proposal. Each Stockholder will immediately communicate to
Parent the terms of any proposal, discussion, negotiation or inquiry (and will
disclose any written materials received by such Stockholder in connection with
such proposal, discussion, negotiation or inquiry) and the identity of the
party making such proposal or inquiry which it may receive in respect of any
such transaction.
 
  (e) Waiver of Appraisal Rights. Each Stockholder hereby waives any rights of
appraisal or rights to dissent from the Merger that such Stockholder may have.
 
  5. Representations and Warranties of the Stockholders. Each Stockholder
hereby represents and warrants to Parent as follows:
 
    (a) Ownership of Shares. Such Stockholder is the record and Beneficial
  Owner of the Shares, as set forth on Schedule I. On the date hereof, the
  Existing Shares constitute all of the Shares owned of record or
  Beneficially Owned by such Stockholder. Such Stockholder has sole voting
  power and sole power to issue instructions with respect to the matters set
  forth in Sections 2, 3 and 4 hereof, sole power of disposition, sole power
  of conversion, sole power to demand appraisal rights and sole power to
  agree to all of the matters set forth in this Agreement, in each case with
  respect to all of the Existing Shares with no limitations, qualifications
  or restrictions on such rights, subject to applicable securities laws and
  the terms of this Agreement.
 
    (b) Power; Binding Agreement. Each Stockholder has the legal capacity,
  power and authority to enter into and perform all of such Stockholder's
  obligations under this Agreement. The execution, delivery and performance
  of this Agreement by such Stockholder will not violate any other agreement
  to which such Stockholder is a party including, without limitation, any
  voting agreement, proxy arrangement, pledge agreement, shareholders
  agreement or voting trust. This Agreement has been duly and validly
  executed and delivered by such Stockholder and constitutes a valid and
  binding agreement of such Stockholder, enforceable against such Stockholder
  in accordance with its terms. There is no beneficiary or holder of a
 
                                      D-3
<PAGE>
 
  voting trust certificate or other interest of any trust of which such
  Stockholder is a trustee whose consent is required for the execution and
  delivery of this Agreement or the consummation by such Stockholder of the
  transactions contemplated hereby.
 
    (c) No Conflicts. Except for filings under the HSR Act and the Exchange
  Act, (i) no filing with, and no permit, authorization, consent or approval
  of, any Governmental Entity is necessary for the execution of this
  Agreement by such Stockholder and the consummation by such Stockholder of
  the transactions contemplated hereby and (ii) none of the execution and
  delivery of this Agreement by such Stockholder, the consummation by such
  Stockholder of the transactions contemplated hereby or compliance by such
  Stockholder with any of the provisions hereof shall (A) conflict with or
  result in any breach of any organizational documents applicable to the
  Stockholder, (B) result in a violation or breach of, or constitute (with or
  without notice or lapse of time or both) a default (or give rise to any
  third party right of termination, cancellation, material modification or
  acceleration) under any of the terms, conditions or provisions of any note,
  loan agreement, bond, mortgage, indenture, license, contract, commitment,
  arrangement, understanding, agreement or other instrument or obligation of
  any kind to which such Stockholder is a party or by which such Stockholder
  or any of its properties or assets may be bound, or (C) violate any order,
  writ, injunction, decree, judgment, statute, rule or regulation applicable
  to such Stockholder or any of its properties or assets.
 
    (d) No Encumbrances. Except as permitted by this Agreement, the Shares
  and the certificates representing such Shares are now, and at all times
  during the term hereof will be, held by such Stockholder, or by a nominee
  or custodian for the benefit of such Stockholder, free and clear of all
  Encumbrances, proxies, voting trusts or agreements, understandings or
  arrangements or any other rights whatsoever, except for any such
  Encumbrances or proxies arising hereunder.
 
    (e) No Finder's Fees. No broker, investment banker, financial advisor or
  other person is entitled to any broker's, finder's, financial adviser's or
  other similar fee or commission in connection with the transactions
  contemplated hereby based upon arrangements made by or on behalf of such
  Stockholder.
 
    (f) Reliance by Parent. Each Stockholder understands and acknowledges
  that Parent is entering into, and causing Purchaser to enter into, the
  Merger Agreement in reliance upon such Stockholder's execution and delivery
  of this Agreement. Each of Parent, Purchaser and the Company acknowledges
  and agrees that in the event of any willful breach by any Stockholder of
  the provisions of Section 4(d) hereof, Parent and Purchaser shall be
  entitled to receive from the Company, and the Company shall be obligated to
  pay to Parent and Purchaser, the amounts set forth in Section 9.2(b) of the
  Merger Agreement in accordance with Section 9.2(c) of the Merger Agreement.
  Each of Parent, Purchaser and the Company acknowledges and agrees that the
  amounts payable to Parent and Purchaser pursuant to the preceding sentence
  shall be Parent's and Purchaser's sole remedy (other than specific
  performance) for any breach by any Stockholder of the provisions of Section
  4(d) hereof.
 
  6. Representations and Warranties of Parent and the Purchaser. Each of
Parent and the Purchaser hereby represents and warrants to the Stockholders as
follows:
 
    (a) Power; Binding Agreement. Each of Parent and the Purchaser has the
  corporate power and authority to enter into and perform all of its
  obligations under this Agreement. The execution, delivery and performance
  of this Agreement by each of Parent and the Purchaser will not violate any
  other agreement to which either of them is a party. This Agreement has been
  duly and validly executed and delivered by each of Parent and the Purchaser
  and constitutes a valid and binding agreement of each of Parent and the
  Purchaser, enforceable against each of Parent and the Purchaser in
  accordance with its terms.
 
    (b) No Conflicts. Except for filings under the HSR Act and the Exchange
  Act, (i) no filing with, and no permit, authorization, consent or approval
  of, any Governmental Entity is necessary for the execution of this
  Agreement by each of Parent and the Purchaser and the consummation by each
  of Parent and the Purchaser of the transactions contemplated hereby and
  (ii) none of the execution and delivery of this Agreement by each of Parent
  and the Purchaser, the consummation by each of Parent and the Purchaser of
  the transactions contemplated hereby or compliance by each of Parent and
  the Purchaser with any of the
 
                                      D-4
<PAGE>
 
  provisions hereof shall (A) conflict with or result in any breach of any
  organizational documents applicable to either of Parent or the Purchaser,
  (B) result in a violation or breach of, or constitute (with or without
  notice or lapse of time or both) a default (or give rise to any third party
  right of termination, cancellation, material modification or acceleration)
  under any of the terms, conditions or provisions of any note, loan
  agreement, bond, mortgage, indenture, license, contract, commitment,
  arrangement, understanding, agreement or other instrument or obligation of
  any kind to which either of Parent or the Purchaser is a party or by which
  either of Parent or the Purchaser or any of their properties or assets may
  be bound, or (C) violate any order, writ, injunction, decree, judgment,
  statute, rule or regulation applicable to either of Parent or the Purchaser
  or any of their properties or assets.
 
  7. Further Assurances. From time to time, at the other party's request and
without further consideration, each party hereto shall execute and deliver
such additional documents and take all such further lawful action as may be
necessary or desirable to consummate and make effective, in the most
expeditious manner practicable, the transactions contemplated by this
Agreement.
 
  8. Stop Transfer. The Stockholders shall not request that the Company
register the transfer (book-entry or otherwise) of any certificate or
uncertificated interest representing any of the Shares, unless such transfer
is made in compliance with this Agreement. In the event of a stock dividend or
distribution, or any change in the Company Common Stock by reason of any stock
dividend, split-up, recapitalization, combination, exchange of shares or the
like, the term "Shares" shall refer to and include the Shares as well as all
such stock dividends and distributions and any shares into which or for which
any or all of the Shares may be changed or exchanged.
 
  9. Termination. Except as provided in Section 3 hereof, the covenants and
agreements contained herein with respect to the Shares shall terminate upon
the termination of the Merger Agreement in accordance with its terms;
provided, however, that during the term of the Stock Option, the Stockholders
shall ensure that the representations and warranties set forth in Section 5
continue to be true and correct.
 
  10. Miscellaneous.
 
  (a) Entire Agreement. This Agreement constitutes the entire agreement
between the parties with respect to the subject matter hereof and supersedes
all other prior agreements and understandings, both written and oral, between
the parties with respect to the subject matter hereof.
 
  (b) Binding Agreement. This Agreement and the obligations hereunder shall
attach to the Shares and shall be binding upon any person or entity to which
legal or beneficial ownership of such Shares shall pass, whether by operation
of law or otherwise, including, without limitation, a Stockholder's heirs,
guardians, administrators or successors. Notwithstanding any transfer of
Shares, the transferor shall remain liable for the performance of all
obligations of the transferor under this Agreement.
 
  (c) Assignment. This Agreement shall not be assigned by operation of law or
otherwise without the prior written consent of the other parties, provided
that Parent may assign, in its sole discretion, its rights and obligations
hereunder to any direct or indirect wholly owned Subsidiary of Parent, but no
such assignment shall relieve Parent of its obligations hereunder if such
assignee does not perform such obligations.
 
  (d) Amendments, Waivers, Etc. This Agreement may not be amended, changed,
supplemented, waived or otherwise modified or terminated, except upon the
execution and delivery of a written agreement executed by the parties hereto.
 
  (e) Notices. All notices, requests, claims, demands and other communications
hereunder shall be in writing and shall be given (and shall be deemed to have
been duly received if given) by hand delivery or telecopy (with a confirmation
copy sent for next day delivery via courier service, such as Federal Express),
or by any courier service, such as Federal Express, providing proof of
delivery. All communications hereunder shall be delivered to the respective
parties at the following addresses:
 
 
                                      D-5
<PAGE>
 
  If to a Stockholder:
                  to such Stockholder's address set forth on Schedule I hereto
 
  If to a Parent or
  the Purchaser:  Logica Inc.
                  32 Hartwell Avenue
                  Lexington, MA 02421
                  Attention: Corey Torrence, President
                  Telephone No.: (617) 476-8000
                  Telecopy No.: (617) 476-8010
 
  copy to:        Goodwin, Procter & Hoar llp
                  Exchange Place
                  Boston, MA 02109
                  Attention: Joseph L. Johnson III, Esq.
                  Telephone No.:  (617) 570-1000
                  Telecopy No.: (617) 523-1231
 
or to such other address as the person to whom notice is given may have
previously furnished to the others in writing in the manner set forth above.
 
  (f) Severability. Whenever possible, each provision or portion of any
provision of this Agreement will be interpreted in such manner as to be
effective and valid under applicable law but if any provision or portion of
any provision of this Agreement is held to be invalid, illegal or
unenforceable in any respect under any applicable law or rule in any
jurisdiction, such invalidity, illegality or unenforceability will not affect
any other provision or portion of any provision in such jurisdiction, and this
Agreement will be reformed, construed and enforced in such jurisdiction as if
such invalid, illegal or unenforceable provision or portion of any provision
had never been contained herein.
 
  (g) Specific Performance. Each of the parties hereto recognizes and
acknowledges that a breach by it of any covenants or agreements contained in
this Agreement will cause the other party to sustain damages for which it
would not have an adequate remedy at law for money damages, and therefore in
the event of any such breach the aggrieved party shall be entitled to the
remedy of specific performance of such covenants and agreements and injunctive
and other equitable relief in addition to any other remedy to which it may be
entitled, at law or in equity (subject to Section 4(f) hereof).
 
  (h) Remedies Cumulative. All rights, powers and remedies provided under this
Agreement or otherwise available in respect hereof at law or in equity shall
be cumulative and not alternative or exclusive, and the exercise of any
thereof by any party shall not preclude the simultaneous or later exercise of
any other such right, power or remedy by such party (subject to Section 4(f)
hereof).
 
  (i) No Waiver. The failure of any party hereto to exercise any right, power
or remedy provided under this Agreement or otherwise available in respect
hereof at law or in equity, or to insist upon compliance by any other party
hereto with its obligations hereunder, and any custom or practice of the
parties at variance with the terms hereof, shall not constitute a waiver by
such party of its right to exercise any such or other right, power or remedy
or to demand such compliance.
 
  (j) No Third Party Beneficiaries. Subject to the provisions of Section
10(c), this Agreement is not intended to be for the benefit of, and shall not
be enforceable by, any person or entity who or which is not a party hereto.
 
  (k) Choice of Law/Consent to Jurisdiction. 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. Each party hereby irrevocably and
unconditionally consents to submit to the exclusive jurisdiction of the courts
of the State of Delaware and of the United States of America located in the
State of Delaware (the "Delaware Courts") for
 
                                      D-6
<PAGE>
 
any litigation arising out of or relating to this Agreement and the
Transactions (and agrees not to commence any litigation relating thereto
except in such courts), waives any objection to the laying of venue of any
such litigation in the Delaware Courts and agrees not to plead or claim in any
Delaware Court that such litigation brought therein has been brought in any
inconvenient forum. Each of the parties hereto agrees, (a) to the extent such
party is not otherwise subject to service of process in the State of Delaware,
to appoint and maintain an agent in the State of Delaware as such party's
agent for acceptance of legal process, and (b) that service of process may
also be made on such party by prepaid certified mail with a proof of mailing
receipt validated by the United States Postal Service constituting evidence of
valid service. Service made pursuant to (a) or (b) above shall have the same
legal force and effect as if served upon such party personally within the
State of Delaware. For purposes of implementing the parties' agreement to
appoint and maintain an agent for service of process in the State of Delaware,
each such party does hereby appoint The Corporation Trust Company, 1209 Orange
Street, Wilmington, New Castle County, Delaware 19801, as such agent.
 
  (l) Descriptive Headings. The descriptive headings used herein are inserted
for convenience of reference only and are not intended to be part of or to
affect the meaning or interpretation of this Agreement.
 
  (m) Counterparts. This Agreement may be executed in counterparts, each of
which shall be deemed to be an original, but all of which, taken together,
shall constitute one and the same Agreement.
 
  (n) No Agreement Until Executed. Irrespective of negotiations among the
parties or the exchanging of drafts of this Agreement, this Agreement shall
not constitute or be deemed to evidence a contract, agreement, arrangement or
understanding among the parties hereto unless and until (i) the Board of
Directors of the Company has approved, for purposes of Section 203 of the
Delaware General Corporation Law and any applicable provision of the Company's
certificate of incorporation, the terms of this Agreement, including, without
limitation, (x) the Stock Option and (y) the irrevocable proxy and voting
provisions set forth in Section 4 of this Agreement, and (ii) this Agreement
is executed by parties hereto.
 
                                      D-7
<PAGE>
 
  In Witness Whereof, the undersigned have caused this Agreement to be duly
executed as of the day and year first above written.
 
                                          Logica Inc.
 
                                                    /s/ Corey Torrence
                                          By: _________________________________
                                            Name: Corey Torrence
                                            Title:President and Chief
                                            Executive Officer
 
                                          Logica Acquisition Corp.
 
                                                    /s/ Corey Torrence
                                          By: _________________________________
                                            Name: Corey Torrence
                                            Title:President
 
                                          Carnegie Group, Inc.
 
                                                   /s/ Dennis Yablonsky
                                          By: _________________________________
                                            Name: Dennis Yablonsky
                                            Title:President and Chief
                                            Executive Officer
 
                                                       /s/ Raj Reddy
                                          By: _________________________________
                                            Name: Raj Reddy
 
                                                    /s/ Anuradha Reddy
                                          By: _________________________________
                                            Name: Anuradha Reddy
 
                                                    /s/ Anuradha Reddy
                                          By: _________________________________
                                            Name: Anuradha Reddy, Trustee,
                                                  Geetha Reddy Trust
 
                                                    /s/ Anuradha Reddy
                                          By: _________________________________
                                            Name: Anuradha Reddy, Trustee,
                                                  Shyamala Reddy Trust
 
                                      D-8
<PAGE>
 
                                   SCHEDULE I
 
<TABLE>
<CAPTION>
                                                               NUMBER OF SHARES
                                                                 AND OPTIONS
NAME AND ADDRESS OF STOCKHOLDER                               BENEFICIALLY OWNED
- -------------------------------                               ------------------
<S>                                                           <C>
Raj Reddy....................................................       73,000
[address]
Anuradha Reddy...............................................      100,000
[address]
Anuradha Reddy, Trustee, Geetha Reddy Trust..................      100,000
[address]
Anuradha Reddy, Trustee, Shyamala Reddy Trust................      100,000
[address]
</TABLE>
 
                                      D-9

<PAGE>
 
                               TENDER AGREEMENT
 
  Agreement, dated as of September 30, 1998, among Logica Inc., a Delaware
corporation ("Parent"), Logica Acquisition Corp., a Delaware corporation and a
wholly owned subsidiary of Parent (the "Purchaser"), Carnegie Group, Inc., a
Delaware corporation (the "Company"), and the stockholders of the Company
signatory hereto (collectively referred to herein as the "Stockholders" and
each, a "Stockholder").
 
                                  Witnesseth:
 
  Whereas, concurrently with the execution and delivery of this Agreement,
Parent, the Purchaser and the Company, have entered into an Agreement and Plan
of Merger (as such agreement may hereafter be amended from time to time, the
"Merger Agreement"), pursuant to which Purchaser will be merged with and into
the Company (the "Merger");
 
  Whereas, in furtherance of the Merger, Parent and the Company desire that as
soon as practicable (and not later than five business days) after the
execution and delivery of the Merger Agreement, the Purchaser shall commence a
cash tender offer (the "Offer") to purchase at a price of $5.00 per share all
outstanding shares of Company Common Stock (as defined in Section 1 hereof)
including all of the Shares (as defined in Section 2 hereof) beneficially
owned by Stockholders; and
 
  Whereas, as an inducement and a condition to entering into the Merger
Agreement, Parent has required that the Stockholders agree, and the
Stockholders have agreed, to enter into this Agreement;
 
  Now, Therefore, in consideration of the foregoing and the mutual
representations, warranties, covenants and agreements contained herein, the
parties hereto agree as follows:
 
  1. Definitions. For purposes of this Agreement:
 
  (a) "Beneficially Own" or "Beneficial Ownership" with respect to any
securities shall mean having "beneficial ownership" of such securities (as
determined pursuant to Rule 13d-3 under the Securities Exchange Act of 1934,
as amended (the "Exchange Act").
 
  (b) "Company Common Stock" shall mean at any time the Common Stock, par
value $.01 per share, of the Company.
 
  (c) "Person" shall mean an individual, corporation, partnership, joint
venture, association, trust, unincorporated organization or other entity.
 
  (d) Capitalized terms used and not defined herein have the respective
meanings ascribed to them in the Merger Agreement.
 
  2. Tender of Shares.
 
  (a) In order to induce Parent and the Purchaser to enter into the Merger
Agreement, each of the Stockholders hereby agrees to validly tender (or cause
the record owner of such shares to validly tender), and not to withdraw,
pursuant to and in accordance with the terms of the Offer, not later than the
fifth business day after commencement of the Offer pursuant to Section 1.1 of
the Merger Agreement and Rule 14d-2 under the Exchange Act, the number of
shares of Company Common Stock set forth opposite such Stockholder's name on
Schedule I hereto (the "Existing Shares", and together with any shares
acquired by such Stockholder in any capacity after the date hereof and prior
to the termination of this Agreement whether upon the exercise of Options or
by means of purchase, dividend, distribution or otherwise, the "Shares"), all
of which are Beneficially Owned by such Stockholder. Each Stockholder hereby
acknowledges and agrees that Parent's and the Purchaser's obligation to accept
for payment and pay for the Shares in the Offer, including the Shares
Beneficially Owned by such Stockholder, is subject to the terms and conditions
of the Offer.
 
                                      F-1
<PAGE>
 
  (b) Upon acceptance and payment therefor by Purchaser, the transfer by the
Stockholders of the Shares to Purchaser in the Offer shall pass to and
unconditionally vest in the Purchaser good and valid title to the Shares, free
and clear of all Encumbrances.
 
  (c) The Stockholders hereby permit Parent and the Purchaser to publish and
disclose in the Offer Documents and, if approval of the Company's stockholders
is required under applicable law, the Proxy Statement (including all documents
and schedules filed with the SEC), their identity and ownership of the Shares
and the nature of their commitments, arrangements and understandings under
this Agreement.
 
  3. Option to Acquire Shares. In order to induce Parent and the Purchaser to
enter into the Merger Agreement, each Stockholder hereby grants to Parent an
irrevocable option (a "Stock Option") to purchase such Stockholder's Shares
(the "Option Shares") at an amount (the "Purchase Price") equal to the Offer
Price. If (i) the Offer is terminated, abandoned or withdrawn by Parent or the
Purchaser due to the failure of paragraph (g) or (h) of the conditions set
forth in Annex A to the Merger Agreement, or (ii) the Merger Agreement is
terminated by the Company pursuant to Section 9.1(c)(ii) thereof, each Stock
Option shall, in any such case, become exercisable, in whole or in part, upon
the first to occur of any such event and remain exercisable in whole or in
part until the date which is 60 days after the date of the occurrence of such
event (the "60 Day Period"), so long as: (i) all waiting periods under the HSR
Act required for the purchase of the Option Shares upon such exercise shall
have expired or been waived, and (ii) there shall not be in effect any
preliminary or final injunction or other order issued by any Governmental
Entity prohibiting the exercise of the Stock Options pursuant to this
Agreement; provided, however, that if all HSR Act waiting periods shall not
have expired or been waived or there shall be in effect any such injunction or
order, in each case on the expiration of the 60 Day Period, the 60 Day Period
shall be extended until five (5) business days after the later of (A) the date
of expiration or waiver of all HSR Act waiting periods or (B) the date of
removal or lifting of such injunction or order. In the event that Parent
wishes to exercise a Stock Option, Parent shall send a written notice (the
"Notice") to the Stockholders identifying the place and date (not less than
two nor more than five (5) business days from the date of the Notice) for the
closing of such purchase.
 
  4. Additional Agreements.
 
  (a) Voting Agreement. Each Stockholder shall, at any meeting of the holders
of Company Common Stock, however called, or in connection with any written
consent of the holders of Company Common Stock, vote (or cause to be voted)
the Shares (if any) then held of record or Beneficially Owned by such
Stockholder, (i) in favor of the Merger, the execution and delivery by the
Company of the Merger Agreement and the approval of the terms thereof and each
of the other actions contemplated by the Merger Agreement and this Agreement
and any actions required in furtherance thereof and hereof; and (ii) against
any Acquisition Proposal and against any action or agreement that would
impede, frustrate, prevent or nullify this Agreement, or result in a breach in
any respect of any covenant, representation or warranty or any other
obligation or agreement of the Company under the Merger Agreement or which
would result in any of the conditions set forth in Annex A to the Merger
Agreement or set forth in Article VIII of the Merger Agreement not being
fulfilled.
 
  (b) No Inconsistent Arrangements. Each of the Stockholders hereby covenants
and agrees that, except as contemplated by this Agreement and the Merger
Agreement, it shall not (i) transfer (which term shall include, without
limitation, any sale, gift, pledge or other disposition), or consent to any
transfer of, any or all of such Stockholder's Shares, Options or any interest
therein, (ii) enter into any contract, option or other agreement or
understanding with respect to any transfer of any or all of such Shares,
Options or any interest therein, (iii) grant any proxy, power-of-attorney or
other authorization in or with respect to such Shares or Options, (iv) deposit
such Shares or Options into a voting trust or enter into a voting agreement or
arrangement with respect to such Shares or Options, or (v) take any other
action that would in any way restrict, limit or interfere with the performance
of its obligations hereunder or the transactions contemplated hereby or by the
Merger Agreement.
 
  (c) Grant of Irrevocable Proxy; Appointment of Proxy.
 
    (i) Each Stockholder hereby irrevocably grants to, and appoints, Parent,
  Corey Torrence and Doug Webb, or either of them, in their respective
  capacities as officers of Parent, and any individual who shall
 
                                      F-2
<PAGE>
 
  hereafter succeed to any such office of Parent, and each of them
  individually, such Stockholder's proxy and attorney-in-fact (with full
  power of substitution), for and in the name, place and stead of such
  Stockholder, to vote such Stockholder's Shares, or grant a consent or
  approval in respect of the Shares in favor of any or all of the
  Transactions and against any Acquisition Proposal.
 
    (ii) Each Stockholder represents that any proxies heretofore given in
  respect of such Stockholder's Shares are not irrevocable, and that any such
  proxies are hereby revoked.
 
    (iii) Each Stockholder understands and acknowledges that Parent is
  entering into the Merger Agreement in reliance upon such Stockholder's
  execution and delivery of this Agreement. Each Stockholder hereby affirms
  that the irrevocable proxy set forth in this Section 4(c) is given in
  connection with the execution of the Merger Agreement, and that such
  irrevocable proxy is given to secure the performance of the duties of such
  Stockholder under this Agreement. Each Stockholder hereby further affirms
  that the irrevocable proxy is coupled with an interest and may under no
  circumstances be revoked. Each Stockholder hereby ratifies and confirms all
  that such irrevocable proxy may lawfully do or cause to be done by virtue
  hereof. Such irrevocable proxy is executed and intended to be irrevocable
  in accordance with the provisions of Section 212(e) of the Delaware General
  Corporation Law.
 
  (d) No Solicitation. Each Stockholder hereby agrees, in the capacity as a
Stockholder or otherwise, that neither such Stockholder nor any of its
Subsidiaries or affiliates shall (and such Stockholder shall use its best
efforts to cause its officers, directors, employees, representatives and
agents, including, but not limited to, investment bankers, attorneys and
accountants, not to), directly or indirectly, encourage, solicit, participate
in or initiate discussions or negotiations with, or provide any information
to, any corporation, partnership, person or other entity or group (other than
Parent, any of its affiliates or representatives) concerning any Acquisition
Proposal or take any other action prohibited by Section 7.4 of the Merger
Agreement. Each Stockholder will immediately cease any existing activities,
discussions or negotiations with any parties conducted heretofore with respect
to any Acquisition Proposal. Each Stockholder will immediately communicate to
Parent the terms of any proposal, discussion, negotiation or inquiry (and will
disclose any written materials received by such Stockholder in connection with
such proposal, discussion, negotiation or inquiry) and the identity of the
party making such proposal or inquiry which it may receive in respect of any
such transaction.
 
  (e) Waiver of Appraisal Rights. Each Stockholder hereby waives any rights of
appraisal or rights to dissent from the Merger that such Stockholder may have.
 
  5. Representations and Warranties of the Stockholders. Each Stockholder
hereby represents and warrants to Parent as follows:
 
    (a) Ownership of Shares. Such Stockholder is the record and Beneficial
  Owner of the Shares, as set forth on Schedule I. On the date hereof, the
  Existing Shares constitute all of the Shares owned of record or
  Beneficially Owned by such Stockholder. Such Stockholder has sole voting
  power and sole power to issue instructions with respect to the matters set
  forth in Sections 2, 3 and 4 hereof, sole power of disposition, sole power
  of conversion, sole power to demand appraisal rights and sole power to
  agree to all of the matters set forth in this Agreement, in each case with
  respect to all of the Existing Shares with no limitations, qualifications
  or restrictions on such rights, subject to applicable securities laws and
  the terms of this Agreement.
 
    (b) Power; Binding Agreement. Each Stockholder has the legal capacity,
  power and authority to enter into and perform all of such Stockholder's
  obligations under this Agreement. The execution, delivery and performance
  of this Agreement by such Stockholder will not violate any other agreement
  to which such Stockholder is a party including, without limitation, any
  voting agreement, proxy arrangement, pledge agreement, shareholders
  agreement or voting trust. This Agreement has been duly and validly
  executed and delivered by such Stockholder and constitutes a valid and
  binding agreement of such Stockholder, enforceable against such Stockholder
  in accordance with its terms. There is no beneficiary or holder of a
 
                                      F-3
<PAGE>
 
  voting trust certificate or other interest of any trust of which such
  Stockholder is a trustee whose consent is required for the execution and
  delivery of this Agreement or the consummation by such Stockholder of the
  transactions contemplated hereby.
 
    (c) No Conflicts. Except for filings under the HSR Act and the Exchange
  Act, (i) no filing with, and no permit, authorization, consent or approval
  of, any Governmental Entity is necessary for the execution of this
  Agreement by such Stockholder and the consummation by such Stockholder of
  the transactions contemplated hereby and (ii) none of the execution and
  delivery of this Agreement by such Stockholder, the consummation by such
  Stockholder of the transactions contemplated hereby or compliance by such
  Stockholder with any of the provisions hereof shall (A) conflict with or
  result in any breach of any organizational documents applicable to the
  Stockholder, (B) result in a violation or breach of, or constitute (with or
  without notice or lapse of time or both) a default (or give rise to any
  third party right of termination, cancellation, material modification or
  acceleration) under any of the terms, conditions or provisions of any note,
  loan agreement, bond, mortgage, indenture, license, contract, commitment,
  arrangement, understanding, agreement or other instrument or obligation of
  any kind to which such Stockholder is a party or by which such Stockholder
  or any of its properties or assets may be bound, or (C) violate any order,
  writ, injunction, decree, judgment, statute, rule or regulation applicable
  to such Stockholder or any of its properties or assets.
 
    (d) No Encumbrances. Except as permitted by this Agreement, the Shares
  and the certificates representing such Shares are now, and at all times
  during the term hereof will be, held by such Stockholder, or by a nominee
  or custodian for the benefit of such Stockholder, free and clear of all
  Encumbrances, proxies, voting trusts or agreements, understandings or
  arrangements or any other rights whatsoever, except for any such
  Encumbrances or proxies arising hereunder.
 
    (e) No Finder's Fees. No broker, investment banker, financial advisor or
  other person is entitled to any broker's, finder's, financial adviser's or
  other similar fee or commission in connection with the transactions
  contemplated hereby based upon arrangements made by or on behalf of such
  Stockholder.
 
    (f) Reliance by Parent. Each Stockholder understands and acknowledges
  that Parent is entering into, and causing Purchaser to enter into, the
  Merger Agreement in reliance upon such Stockholder's execution and delivery
  of this Agreement. Each of Parent, Purchaser and the Company acknowledges
  and agrees that in the event of any willful breach by any Stockholder of
  the provisions of Section 4(d) hereof, Parent and Purchaser shall be
  entitled to receive from the Company, and the Company shall be obligated to
  pay to Parent and Purchaser, the amounts set forth in Section 9.2(b) of the
  Merger Agreement in accordance with Section 9.2(c) of the Merger Agreement.
  Each of Parent, Purchaser and the Company acknowledges and agrees that the
  amounts payable to Parent and Purchaser pursuant to the preceding sentence
  shall be Parent's and Purchaser's sole remedy (other than specific
  performance) for any breach by any Stockholder of the provisions of Section
  4(d) hereof.
 
  6. Representations and Warranties of Parent and the Purchaser. Each of
Parent and the Purchaser hereby represents and warrants to the Stockholders as
follows:
 
    (a) Power; Binding Agreement. Each of Parent and the Purchaser has the
  corporate power and authority to enter into and perform all of its
  obligations under this Agreement. The execution, delivery and performance
  of this Agreement by each of Parent and the Purchaser will not violate any
  other agreement to which either of them is a party. This Agreement has been
  duly and validly executed and delivered by each of Parent and the Purchaser
  and constitutes a valid and binding agreement of each of Parent and the
  Purchaser, enforceable against each of Parent and the Purchaser in
  accordance with its terms.
 
    (b) No Conflicts. Except for filings under the HSR Act and the Exchange
  Act, (i) no filing with, and no permit, authorization, consent or approval
  of, any Governmental Entity is necessary for the execution of this
  Agreement by each of Parent and the Purchaser and the consummation by each
  of Parent and the Purchaser of the transactions contemplated hereby and
  (ii) none of the execution and delivery of this Agreement by each of Parent
  and the Purchaser, the consummation by each of Parent and the Purchaser of
  the transactions contemplated hereby or compliance by each of Parent and
  the Purchaser with any of the
 
                                      F-4
<PAGE>
 
  provisions hereof shall (A) conflict with or result in any breach of any
  organizational documents applicable to either of Parent or the Purchaser,
  (B) result in a violation or breach of, or constitute (with or without
  notice or lapse of time or both) a default (or give rise to any third party
  right of termination, cancellation, material modification or acceleration)
  under any of the terms, conditions or provisions of any note, loan
  agreement, bond, mortgage, indenture, license, contract, commitment,
  arrangement, understanding, agreement or other instrument or obligation of
  any kind to which either of Parent or the Purchaser is a party or by which
  either of Parent or the Purchaser or any of their properties or assets may
  be bound, or (C) violate any order, writ, injunction, decree, judgment,
  statute, rule or regulation applicable to either of Parent or the Purchaser
  or any of their properties or assets.
 
  7. Further Assurances. From time to time, at the other party's request and
without further consideration, each party hereto shall execute and deliver
such additional documents and take all such further lawful action as may be
necessary or desirable to consummate and make effective, in the most
expeditious manner practicable, the transactions contemplated by this
Agreement.
 
  8. Stop Transfer. The Stockholders shall not request that the Company
register the transfer (book-entry or otherwise) of any certificate or
uncertificated interest representing any of the Shares, unless such transfer
is made in compliance with this Agreement. In the event of a stock dividend or
distribution, or any change in the Company Common Stock by reason of any stock
dividend, split-up, recapitalization, combination, exchange of shares or the
like, the term "Shares" shall refer to and include the Shares as well as all
such stock dividends and distributions and any shares into which or for which
any or all of the Shares may be changed or exchanged.
 
  9. Termination. Except as provided in Section 3 hereof, the covenants and
agreements contained herein with respect to the Shares shall terminate upon
the termination of the Merger Agreement in accordance with its terms;
provided, however, that during the term of the Stock Option, the Stockholders
shall ensure that the representations and warranties set forth in Section 5
continue to be true and correct.
 
  10. Miscellaneous.
 
  (a) Entire Agreement. This Agreement constitutes the entire agreement
between the parties with respect to the subject matter hereof and supersedes
all other prior agreements and understandings, both written and oral, between
the parties with respect to the subject matter hereof.
 
  (b) Binding Agreement. This Agreement and the obligations hereunder shall
attach to the Shares and shall be binding upon any person or entity to which
legal or beneficial ownership of such Shares shall pass, whether by operation
of law or otherwise, including, without limitation, a Stockholder's heirs,
guardians, administrators or successors. Notwithstanding any transfer of
Shares, the transferor shall remain liable for the performance of all
obligations of the transferor under this Agreement.
 
  (c) Assignment. This Agreement shall not be assigned by operation of law or
otherwise without the prior written consent of the other parties, provided
that Parent may assign, in its sole discretion, its rights and obligations
hereunder to any direct or indirect wholly owned Subsidiary of Parent, but no
such assignment shall relieve Parent of its obligations hereunder if such
assignee does not perform such obligations.
 
  (d) Amendments, Waivers, Etc. This Agreement may not be amended, changed,
supplemented, waived or otherwise modified or terminated, except upon the
execution and delivery of a written agreement executed by the parties hereto.
 
  (e) Notices. All notices, requests, claims, demands and other communications
hereunder shall be in writing and shall be given (and shall be deemed to have
been duly received if given) by hand delivery or telecopy (with a confirmation
copy sent for next day delivery via courier service, such as Federal Express),
or by any courier service, such as Federal Express, providing proof of
delivery. All communications hereunder shall be delivered to the respective
parties at the following addresses:
 
 
                                      F-5
<PAGE>
 
  If to a Stockholder:
                  to such Stockholder's address set forth on Schedule I hereto
 
  If to a Parent or
  the Purchaser:  Logica Inc.
                  32 Hartwell Avenue
                  Lexington, MA 02421
                  Attention: Corey Torrence, President
                  Telephone No.: (617) 476-8000
                  Telecopy No.: (617) 476-8010
 
  copy to:        Goodwin, Procter & Hoar llp
                  Exchange Place
                  Boston, MA 02109
                  Attention: Joseph L. Johnson III, Esq.
                  Telephone No.:  (617) 570-1000
                  Telecopy No.: (617) 523-1231
 
or to such other address as the person to whom notice is given may have
previously furnished to the others in writing in the manner set forth above.
 
  (f) Severability. Whenever possible, each provision or portion of any
provision of this Agreement will be interpreted in such manner as to be
effective and valid under applicable law but if any provision or portion of
any provision of this Agreement is held to be invalid, illegal or
unenforceable in any respect under any applicable law or rule in any
jurisdiction, such invalidity, illegality or unenforceability will not affect
any other provision or portion of any provision in such jurisdiction, and this
Agreement will be reformed, construed and enforced in such jurisdiction as if
such invalid, illegal or unenforceable provision or portion of any provision
had never been contained herein.
 
  (g) Specific Performance. Each of the parties hereto recognizes and
acknowledges that a breach by it of any covenants or agreements contained in
this Agreement will cause the other party to sustain damages for which it
would not have an adequate remedy at law for money damages, and therefore in
the event of any such breach the aggrieved party shall be entitled to the
remedy of specific performance of such covenants and agreements and injunctive
and other equitable relief in addition to any other remedy to which it may be
entitled, at law or in equity (subject to Section 4(f) hereof).
 
  (h) Remedies Cumulative. All rights, powers and remedies provided under this
Agreement or otherwise available in respect hereof at law or in equity shall
be cumulative and not alternative or exclusive, and the exercise of any
thereof by any party shall not preclude the simultaneous or later exercise of
any other such right, power or remedy by such party (subject to Section 4(f)
hereof).
 
  (i) No Waiver. The failure of any party hereto to exercise any right, power
or remedy provided under this Agreement or otherwise available in respect
hereof at law or in equity, or to insist upon compliance by any other party
hereto with its obligations hereunder, and any custom or practice of the
parties at variance with the terms hereof, shall not constitute a waiver by
such party of its right to exercise any such or other right, power or remedy
or to demand such compliance.
 
  (j) No Third Party Beneficiaries. Subject to the provisions of Section
10(c), this Agreement is not intended to be for the benefit of, and shall not
be enforceable by, any person or entity who or which is not a party hereto.
 
  (k) Choice of Law/Consent to Jurisdiction. 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. Each party hereby irrevocably and
unconditionally consents to submit to the exclusive jurisdiction of the courts
of the State of Delaware and of the United States of America located in the
State of Delaware (the "Delaware Courts") for
 
                                      F-6
<PAGE>
 
any litigation arising out of or relating to this Agreement and the
Transactions (and agrees not to commence any litigation relating thereto
except in such courts), waives any objection to the laying of venue of any
such litigation in the Delaware Courts and agrees not to plead or claim in any
Delaware Court that such litigation brought therein has been brought in any
inconvenient forum. Each of the parties hereto agrees, (a) to the extent such
party is not otherwise subject to service of process in the State of Delaware,
to appoint and maintain an agent in the State of Delaware as such party's
agent for acceptance of legal process, and (b) that service of process may
also be made on such party by prepaid certified mail with a proof of mailing
receipt validated by the United States Postal Service constituting evidence of
valid service. Service made pursuant to (a) or (b) above shall have the same
legal force and effect as if served upon such party personally within the
State of Delaware. For purposes of implementing the parties' agreement to
appoint and maintain an agent for service of process in the State of Delaware,
each such party does hereby appoint The Corporation Trust Company, 1209 Orange
Street, Wilmington, New Castle County, Delaware 19801, as such agent.
 
  (l) Descriptive Headings. The descriptive headings used herein are inserted
for convenience of reference only and are not intended to be part of or to
affect the meaning or interpretation of this Agreement.
 
  (m) Counterparts. This Agreement may be executed in counterparts, each of
which shall be deemed to be an original, but all of which, taken together,
shall constitute one and the same Agreement.
 
  (n) No Agreement Until Executed. Irrespective of negotiations among the
parties or the exchanging of drafts of this Agreement, this Agreement shall
not constitute or be deemed to evidence a contract, agreement, arrangement or
understanding among the parties hereto unless and until (i) the Board of
Directors of the Company has approved, for purposes of Section 203 of the
Delaware General Corporation Law and any applicable provision of the Company's
certificate of incorporation, the terms of this Agreement, including, without
limitation, (x) the Stock Option and (y) the irrevocable proxy and voting
provisions set forth in Section 4 of this Agreement, and (ii) this Agreement
is executed by parties hereto.
 
                                      F-7
<PAGE>
 
  In Witness Whereof, the undersigned have caused this Agreement to be duly
executed as of the day and year first above written.
 
                                          Logica Inc.
 
                                                    /s/ Corey Torrence
                                          By: _________________________________
                                            Name: Corey Torrence
                                            Title:President and Chief
                                            Executive Officer
 
                                          Logica Acquisition Corp.
 
                                                    /s/ Corey Torrence
                                          By: _________________________________
                                            Name: Corey Torrence
                                            Title:President
 
                                          Carnegie Group, Inc.
 
                                                   /s/ Dennis Yablonsky
                                          By: _________________________________
                                            Name: Dennis Yablonsky
                                            Title:President and Chief
                                            Executive Officer
 
                                                    /s/ Jaime Carbonell
                                          By: _________________________________
                                            Name: Jaime Carbonell
 
                                                    /s/ Jaime Carbonell
                                          By: _________________________________
                                            Name: Jaime Carbonell, Custodian
                                                  for Diana Carbonell
 
                                                    /s/ Jaime Carbonell
                                          By: _________________________________
                                            Name: Jaime Carbonell, Custodian
                                                  for Isabelle Carbonell
 
                                                    /s/ Jaime Carbonell
                                          By: _________________________________
                                            Name: Jaime Carbonell, Custodian
                                                  for Ruben Carbonell
 
                                                    /s/ Jaime Carbonell
                                          By: _________________________________
                                            Name: Jaime Carbonell, Custodian
                                                  for Rachel Carbonell
 
                                      F-8
<PAGE>
 
                                                    /s/ Jaime Carbonell
                                          By: _________________________________
                                            Name: Jaime Carbonell, In Trust
                                                  for Diana Carbonell
 
                                                    /s/ Jaime Carbonell
                                          By: _________________________________
                                            Name: Jaime Carbonell, In Trust
                                                  for Isabelle Carbonell
 
                                                    /s/ Jaime Carbonell
                                          By: _________________________________
                                            Name: Jaime Carbonell, In Trust
                                                  for Ruben Carbonell
 
                                                    /s/ Jaime Carbonell
                                          By: _________________________________
                                            Name: Jaime Carbonell, In Trust
                                                  for Rachel Carbonell
 
                                      F-9
<PAGE>
 
                                   SCHEDULE I
 
<TABLE>
<CAPTION>
                                                               NUMBER OF SHARES
                                                                 AND OPTIONS
NAME AND ADDRESS OF STOCKHOLDER                               BENEFICIALLY OWNED
- -------------------------------                               ------------------
<S>                                                           <C>
Jaime Carbonell..............................................      323,200
[address]
Jaime Carbonell, Custodian for Diana Carbonell...............        4,400
[address]
Jaime Carbonell, Custodian for Isabelle Carbonell............        6,400
[address]
Jaime Carbonell, Custodian for Ruben Carbonell...............        2,400
[address]
Jaime Carbonell, Custodian for Rachel Carbonell..............        4,400
[address]
Jaime Carbonell, in Trust for Diana Carbonell................        1,600
[address]
Jaime Carbonell, in Trust for Isabelle Carbonell.............        1,600
[address]
Jaime Carbonell, in Trust for Ruben Carbonell................        1,600
[address]
Jaime Carbonell, in Trust for Rachel Carbonell...............        1,600
[address]
</TABLE>
 
                                      F-10

<PAGE>
 
                               TENDER AGREEMENT
 
  Agreement, dated as of September 30, 1998, among Logica Inc., a Delaware
corporation ("Parent"), Logica Acquisition Corp., a Delaware corporation and a
wholly owned subsidiary of Parent (the "Purchaser"), Carnegie Group, Inc., a
Delaware corporation (the "Company"), and the stockholders of the Company
signatory hereto (collectively referred to herein as the "Stockholders" and
each, a "Stockholder").
 
                                  Witnesseth:
 
  Whereas, concurrently with the execution and delivery of this Agreement,
Parent, the Purchaser and the Company, have entered into an Agreement and Plan
of Merger (as such agreement may hereafter be amended from time to time, the
"Merger Agreement"), pursuant to which Purchaser will be merged with and into
the Company (the "Merger");
 
  Whereas, in furtherance of the Merger, Parent and the Company desire that as
soon as practicable (and not later than five business days) after the
execution and delivery of the Merger Agreement, the Purchaser shall commence a
cash tender offer (the "Offer") to purchase at a price of $5.00 per share all
outstanding shares of Company Common Stock (as defined in Section 1 hereof)
including all of the Shares (as defined in Section 2 hereof) beneficially
owned by Stockholders; and
 
  Whereas, as an inducement and a condition to entering into the Merger
Agreement, Parent has required that the Stockholders agree, and the
Stockholders have agreed, to enter into this Agreement;
 
  Now, Therefore, in consideration of the foregoing and the mutual
representations, warranties, covenants and agreements contained herein, the
parties hereto agree as follows:
 
  1. Definitions. For purposes of this Agreement:
 
  (a) "Beneficially Own" or "Beneficial Ownership" with respect to any
securities shall mean having "beneficial ownership" of such securities (as
determined pursuant to Rule 13d-3 under the Securities Exchange Act of 1934,
as amended (the "Exchange Act").
 
  (b) "Company Common Stock" shall mean at any time the Common Stock, par
value $.01 per share, of the Company.
 
  (c) "Person" shall mean an individual, corporation, partnership, joint
venture, association, trust, unincorporated organization or other entity.
 
  (d) Capitalized terms used and not defined herein have the respective
meanings ascribed to them in the Merger Agreement.
 
  2. Tender of Shares.
 
  (a) In order to induce Parent and the Purchaser to enter into the Merger
Agreement, each of the Stockholders hereby agrees to validly tender (or cause
the record owner of such shares to validly tender), and not to withdraw,
pursuant to and in accordance with the terms of the Offer, not later than the
fifth business day after commencement of the Offer pursuant to Section 1.1 of
the Merger Agreement and Rule 14d-2 under the Exchange Act, the number of
shares of Company Common Stock set forth opposite such Stockholder's name on
Schedule I hereto (the "Existing Shares", and together with any shares
acquired by such Stockholder in any capacity after the date hereof and prior
to the termination of this Agreement whether upon the exercise of Options or
by means of purchase, dividend, distribution or otherwise, the "Shares"), all
of which are Beneficially Owned by such Stockholder. Each Stockholder hereby
acknowledges and agrees that Parent's and the Purchaser's obligation to accept
for payment and pay for the Shares in the Offer, including the Shares
Beneficially Owned by such Stockholder, is subject to the terms and conditions
of the Offer.
 
 
                                      C-1
<PAGE>
 
  (b) Upon acceptance and payment therefor by Purchaser, the transfer by the
Stockholders of the Shares to Purchaser in the Offer shall pass to and
unconditionally vest in the Purchaser good and valid title to the Shares, free
and clear of all Encumbrances.
 
  (c) The Stockholders hereby permit Parent and the Purchaser to publish and
disclose in the Offer Documents and, if approval of the Company's stockholders
is required under applicable law, the Proxy Statement (including all documents
and schedules filed with the SEC), their identity and ownership of the Shares
and the nature of their commitments, arrangements and understandings under
this Agreement.
 
  3. Option to Acquire Shares. In order to induce Parent and the Purchaser to
enter into the Merger Agreement, each Stockholder hereby grants to Parent an
irrevocable option (a "Stock Option") to purchase such Stockholder's Shares
(the "Option Shares") at an amount (the "Purchase Price") equal to the Offer
Price. If (i) the Offer is terminated, abandoned or withdrawn by Parent or the
Purchaser due to the failure of paragraph (g) or (h) of the conditions set
forth in Annex A to the Merger Agreement, or (ii) the Merger Agreement is
terminated by the Company pursuant to Section 9.1(c)(ii) thereof, each Stock
Option shall, in any such case, become exercisable, in whole or in part, upon
the first to occur of any such event and remain exercisable in whole or in
part until the date which is 60 days after the date of the occurrence of such
event (the "60 Day Period"), so long as: (i) all waiting periods under the HSR
Act required for the purchase of the Option Shares upon such exercise shall
have expired or been waived, and (ii) there shall not be in effect any
preliminary or final injunction or other order issued by any Governmental
Entity prohibiting the exercise of the Stock Options pursuant to this
Agreement; provided, however, that if all HSR Act waiting periods shall not
have expired or been waived or there shall be in effect any such injunction or
order, in each case on the expiration of the 60 Day Period, the 60 Day Period
shall be extended until five (5) business days after the later of (A) the date
of expiration or waiver of all HSR Act waiting periods or (B) the date of
removal or lifting of such injunction or order. In the event that Parent
wishes to exercise a Stock Option, Parent shall send a written notice (the
"Notice") to the Stockholders identifying the place and date (not less than
two nor more than five (5) business days from the date of the Notice) for the
closing of such purchase.
 
  4. Additional Agreements.
 
  (a) Voting Agreement. Each Stockholder shall, at any meeting of the holders
of Company Common Stock, however called, or in connection with any written
consent of the holders of Company Common Stock, vote (or cause to be voted)
the Shares (if any) then held of record or Beneficially Owned by such
Stockholder, (i) in favor of the Merger, the execution and delivery by the
Company of the Merger Agreement and the approval of the terms thereof and each
of the other actions contemplated by the Merger Agreement and this Agreement
and any actions required in furtherance thereof and hereof; and (ii) against
any Acquisition Proposal and against any action or agreement that would
impede, frustrate, prevent or nullify this Agreement, or result in a breach in
any respect of any covenant, representation or warranty or any other
obligation or agreement of the Company under the Merger Agreement or which
would result in any of the conditions set forth in Annex A to the Merger
Agreement or set forth in Article VIII of the Merger Agreement not being
fulfilled.
 
  (b) No Inconsistent Arrangements. Each of the Stockholders hereby covenants
and agrees that, except as contemplated by this Agreement and the Merger
Agreement, it shall not (i) transfer (which term shall include, without
limitation, any sale, gift, pledge or other disposition), or consent to any
transfer of, any or all of such Stockholder's Shares, Options or any interest
therein, (ii) enter into any contract, option or other agreement or
understanding with respect to any transfer of any or all of such Shares,
Options or any interest therein, (iii) grant any proxy, power-of-attorney or
other authorization in or with respect to such Shares or Options, (iv) deposit
such Shares or Options into a voting trust or enter into a voting agreement or
arrangement with respect to such Shares or Options, or (v) take any other
action that would in any way restrict, limit or interfere with the performance
of its obligations hereunder or the transactions contemplated hereby or by the
Merger Agreement.
 
  (c) Grant of Irrevocable Proxy; Appointment of Proxy.
 
 
                                      C-2
<PAGE>
 
    (i) Each Stockholder hereby irrevocably grants to, and appoints, Parent,
  Corey Torrence and Doug Webb, or either of them, in their respective
  capacities as officers of Parent, and any individual who shall hereafter
  succeed to any such office of Parent, and each of them individually, such
  Stockholder's proxy and attorney-in-fact (with full power of substitution),
  for and in the name, place and stead of such Stockholder, to vote such
  Stockholder's Shares, or grant a consent or approval in respect of the
  Shares in favor of any or all of the Transactions and against any
  Acquisition Proposal.
 
    (ii) Each Stockholder represents that any proxies heretofore given in
  respect of such Stockholder's Shares are not irrevocable, and that any such
  proxies are hereby revoked.
 
    (iii) Each Stockholder understands and acknowledges that Parent is
  entering into the Merger Agreement in reliance upon such Stockholder's
  execution and delivery of this Agreement. Each Stockholder hereby affirms
  that the irrevocable proxy set forth in this Section 4(c) is given in
  connection with the execution of the Merger Agreement, and that such
  irrevocable proxy is given to secure the performance of the duties of such
  Stockholder under this Agreement. Each Stockholder hereby further affirms
  that the irrevocable proxy is coupled with an interest and may under no
  circumstances be revoked. Each Stockholder hereby ratifies and confirms all
  that such irrevocable proxy may lawfully do or cause to be done by virtue
  hereof. Such irrevocable proxy is executed and intended to be irrevocable
  in accordance with the provisions of Section 212(e) of the Delaware General
  Corporation Law.
 
  (d) No Solicitation. Each Stockholder hereby agrees, in the capacity as a
Stockholder or otherwise, that neither such Stockholder nor any of its
Subsidiaries or affiliates shall (and such Stockholder shall use its best
efforts to cause its officers, directors, employees, representatives and
agents, including, but not limited to, investment bankers, attorneys and
accountants, not to), directly or indirectly, encourage, solicit, participate
in or initiate discussions or negotiations with, or provide any information
to, any corporation, partnership, person or other entity or group (other than
Parent, any of its affiliates or representatives) concerning any Acquisition
Proposal or take any other action prohibited by Section 7.4 of the Merger
Agreement. Each Stockholder will immediately cease any existing activities,
discussions or negotiations with any parties conducted heretofore with respect
to any Acquisition Proposal. Each Stockholder will immediately communicate to
Parent the terms of any proposal, discussion, negotiation or inquiry (and will
disclose any written materials received by such Stockholder in connection with
such proposal, discussion, negotiation or inquiry) and the identity of the
party making such proposal or inquiry which it may receive in respect of any
such transaction.
 
  (e) Waiver of Appraisal Rights. Each Stockholder hereby waives any rights of
appraisal or rights to dissent from the Merger that such Stockholder may have.
 
  5. Representations and Warranties of the Stockholders. Each Stockholder
hereby represents and warrants to Parent as follows:
 
    (a) Ownership of Shares. Such Stockholder is the record and Beneficial
  Owner of the Shares, as set forth on Schedule I. On the date hereof, the
  Existing Shares constitute all of the Shares owned of record or
  Beneficially Owned by such Stockholder. Such Stockholder has sole voting
  power and sole power to issue instructions with respect to the matters set
  forth in Sections 2, 3 and 4 hereof, sole power of disposition, sole power
  of conversion, sole power to demand appraisal rights and sole power to
  agree to all of the matters set forth in this Agreement, in each case with
  respect to all of the Existing Shares with no limitations, qualifications
  or restrictions on such rights, subject to applicable securities laws and
  the terms of this Agreement.
 
    (b) Power; Binding Agreement. Each Stockholder has the legal capacity,
  power and authority to enter into and perform all of such Stockholder's
  obligations under this Agreement. The execution, delivery and performance
  of this Agreement by such Stockholder will not violate any other agreement
  to which such Stockholder is a party including, without limitation, any
  voting agreement, proxy arrangement, pledge agreement, shareholders
  agreement or voting trust. This Agreement has been duly and validly
  executed and delivered by such Stockholder and constitutes a valid and
  binding agreement of such Stockholder, enforceable against such Stockholder
  in accordance with its terms. There is no beneficiary or holder of a
 
                                      C-3
<PAGE>
 
  voting trust certificate or other interest of any trust of which such
  Stockholder is a trustee whose consent is required for the execution and
  delivery of this Agreement or the consummation by such Stockholder of the
  transactions contemplated hereby.
 
    (c) No Conflicts. Except for filings under the HSR Act and the Exchange
  Act, (i) no filing with, and no permit, authorization, consent or approval
  of, any Governmental Entity is necessary for the execution of this
  Agreement by such Stockholder and the consummation by such Stockholder of
  the transactions contemplated hereby and (ii) none of the execution and
  delivery of this Agreement by such Stockholder, the consummation by such
  Stockholder of the transactions contemplated hereby or compliance by such
  Stockholder with any of the provisions hereof shall (A) conflict with or
  result in any breach of any organizational documents applicable to the
  Stockholder, (B) result in a violation or breach of, or constitute (with or
  without notice or lapse of time or both) a default (or give rise to any
  third party right of termination, cancellation, material modification or
  acceleration) under any of the terms, conditions or provisions of any note,
  loan agreement, bond, mortgage, indenture, license, contract, commitment,
  arrangement, understanding, agreement or other instrument or obligation of
  any kind to which such Stockholder is a party or by which such Stockholder
  or any of its properties or assets may be bound, or (C) violate any order,
  writ, injunction, decree, judgment, statute, rule or regulation applicable
  to such Stockholder or any of its properties or assets.
 
    (d) No Encumbrances. Except as permitted by this Agreement, the Shares
  and the certificates representing such Shares are now, and at all times
  during the term hereof will be, held by such Stockholder, or by a nominee
  or custodian for the benefit of such Stockholder, free and clear of all
  Encumbrances, proxies, voting trusts or agreements, understandings or
  arrangements or any other rights whatsoever, except for any such
  Encumbrances or proxies arising hereunder.
 
    (e) No Finder's Fees. No broker, investment banker, financial advisor or
  other person is entitled to any broker's, finder's, financial adviser's or
  other similar fee or commission in connection with the transactions
  contemplated hereby based upon arrangements made by or on behalf of such
  Stockholder.
 
    (f) Reliance by Parent. Each Stockholder understands and acknowledges
  that Parent is entering into, and causing Purchaser to enter into, the
  Merger Agreement in reliance upon such Stockholder's execution and delivery
  of this Agreement. Each of Parent, Purchaser and the Company acknowledges
  and agrees that in the event of any willful breach by any Stockholder of
  the provisions of Section 4(d) hereof, Parent and Purchaser shall be
  entitled to receive from the Company, and the Company shall be obligated to
  pay to Parent and Purchaser, the amounts set forth in Section 9.2(b) of the
  Merger Agreement in accordance with Section 9.2(c) of the Merger Agreement.
  Each of Parent, Purchaser and the Company acknowledges and agrees that the
  amounts payable to Parent and Purchaser pursuant to the preceding sentence
  shall be Parent's and Purchaser's sole remedy (other than specific
  performance) for any breach by any Stockholder of the provisions of Section
  4(d) hereof.
 
  6. Representations and Warranties of Parent and the Purchaser. Each of
Parent and the Purchaser hereby represents and warrants to the Stockholders as
follows:
 
    (a) Power; Binding Agreement. Each of Parent and the Purchaser has the
  corporate power and authority to enter into and perform all of its
  obligations under this Agreement. The execution, delivery and performance
  of this Agreement by each of Parent and the Purchaser will not violate any
  other agreement to which either of them is a party. This Agreement has been
  duly and validly executed and delivered by each of Parent and the Purchaser
  and constitutes a valid and binding agreement of each of Parent and the
  Purchaser, enforceable against each of Parent and the Purchaser in
  accordance with its terms.
 
    (b) No Conflicts. Except for filings under the HSR Act and the Exchange
  Act, (i) no filing with, and no permit, authorization, consent or approval
  of, any Governmental Entity is necessary for the execution of this
  Agreement by each of Parent and the Purchaser and the consummation by each
  of Parent and the Purchaser of the transactions contemplated hereby and
  (ii) none of the execution and delivery of this Agreement by each of Parent
  and the Purchaser, the consummation by each of Parent and the Purchaser of
  the transactions contemplated hereby or compliance by each of Parent and
  the Purchaser with any of the
 
                                      C-4
<PAGE>
 
  provisions hereof shall (A) conflict with or result in any breach of any
  organizational documents applicable to either of Parent or the Purchaser,
  (B) result in a violation or breach of, or constitute (with or without
  notice or lapse of time or both) a default (or give rise to any third party
  right of termination, cancellation, material modification or acceleration)
  under any of the terms, conditions or provisions of any note, loan
  agreement, bond, mortgage, indenture, license, contract, commitment,
  arrangement, understanding, agreement or other instrument or obligation of
  any kind to which either of Parent or the Purchaser is a party or by which
  either of Parent or the Purchaser or any of their properties or assets may
  be bound, or (C) violate any order, writ, injunction, decree, judgment,
  statute, rule or regulation applicable to either of Parent or the Purchaser
  or any of their properties or assets.
 
  7. Further Assurances. From time to time, at the other party's request and
without further consideration, each party hereto shall execute and deliver
such additional documents and take all such further lawful action as may be
necessary or desirable to consummate and make effective, in the most
expeditious manner practicable, the transactions contemplated by this
Agreement.
 
  8. Stop Transfer. The Stockholders shall not request that the Company
register the transfer (book-entry or otherwise) of any certificate or
uncertificated interest representing any of the Shares, unless such transfer
is made in compliance with this Agreement. In the event of a stock dividend or
distribution, or any change in the Company Common Stock by reason of any stock
dividend, split-up, recapitalization, combination, exchange of shares or the
like, the term "Shares" shall refer to and include the Shares as well as all
such stock dividends and distributions and any shares into which or for which
any or all of the Shares may be changed or exchanged.
 
  9. Termination.  Except as provided in Section 3 hereof, the covenants and
agreements contained herein with respect to the Shares shall terminate upon
the termination of the Merger Agreement in accordance with its terms;
provided, however, that during the term of the Stock Option, the Stockholders
shall ensure that the representations and warranties set forth in Section 5
continue to be true and correct.
 
  10. Miscellaneous.
 
  (a) Entire Agreement. This Agreement constitutes the entire agreement
between the parties with respect to the subject matter hereof and supersedes
all other prior agreements and understandings, both written and oral, between
the parties with respect to the subject matter hereof.
 
  (b) Binding Agreement. This Agreement and the obligations hereunder shall
attach to the Shares and shall be binding upon any person or entity to which
legal or beneficial ownership of such Shares shall pass, whether by operation
of law or otherwise, including, without limitation, a Stockholder's heirs,
guardians, administrators or successors. Notwithstanding any transfer of
Shares, the transferor shall remain liable for the performance of all
obligations of the transferor under this Agreement.
 
  (c) Assignment. This Agreement shall not be assigned by operation of law or
otherwise without the prior written consent of the other parties, provided
that Parent may assign, in its sole discretion, its rights and obligations
hereunder to any direct or indirect wholly owned Subsidiary of Parent, but no
such assignment shall relieve Parent of its obligations hereunder if such
assignee does not perform such obligations.
 
  (d) Amendments, Waivers, Etc. This Agreement may not be amended, changed,
supplemented, waived or otherwise modified or terminated, except upon the
execution and delivery of a written agreement executed by the parties hereto.
 
  (e) Notices. All notices, requests, claims, demands and other communications
hereunder shall be in writing and shall be given (and shall be deemed to have
been duly received if given) by hand delivery or telecopy (with a confirmation
copy sent for next day delivery via courier service, such as Federal Express),
or by any courier service, such as Federal Express, providing proof of
delivery. All communications hereunder shall be delivered to the respective
parties at the following addresses:
 
 
                                      C-5
<PAGE>
 
  If to a Stockholder:
                  to such Stockholder's address set forth on Schedule I hereto
 
  If to a Parent or
  the Purchaser:  Logica Inc.
                  32 Hartwell Avenue
                  Lexington, MA 02421
                  Attention: Corey Torrence, President
                  Telephone No.: (617) 476-8000
                  Telecopy No.: (617) 476-8010
 
  copy to:        Goodwin, Procter & Hoar llp
                  Exchange Place
                  Boston, MA 02109
                  Attention: Joseph L. Johnson III, Esq.
                  Telephone No.:  (617) 570-1000
                  Telecopy No.: (617) 523-1231
 
or to such other address as the person to whom notice is given may have
previously furnished to the others in writing in the manner set forth above.
 
  (f) Severability. Whenever possible, each provision or portion of any
provision of this Agreement will be interpreted in such manner as to be
effective and valid under applicable law but if any provision or portion of
any provision of this Agreement is held to be invalid, illegal or
unenforceable in any respect under any applicable law or rule in any
jurisdiction, such invalidity, illegality or unenforceability will not affect
any other provision or portion of any provision in such jurisdiction, and this
Agreement will be reformed, construed and enforced in such jurisdiction as if
such invalid, illegal or unenforceable provision or portion of any provision
had never been contained herein.
 
  (g) Specific Performance. Each of the parties hereto recognizes and
acknowledges that a breach by it of any covenants or agreements contained in
this Agreement will cause the other party to sustain damages for which it
would not have an adequate remedy at law for money damages, and therefore in
the event of any such breach the aggrieved party shall be entitled to the
remedy of specific performance of such covenants and agreements and injunctive
and other equitable relief in addition to any other remedy to which it may be
entitled, at law or in equity (subject to Section 4(f) hereof).
 
  (h) Remedies Cumulative. All rights, powers and remedies provided under this
Agreement or otherwise available in respect hereof at law or in equity shall
be cumulative and not alternative or exclusive, and the exercise of any
thereof by any party shall not preclude the simultaneous or later exercise of
any other such right, power or remedy by such party (subject to Section 4(f)
hereof).
 
  (i) No Waiver. The failure of any party hereto to exercise any right, power
or remedy provided under this Agreement or otherwise available in respect
hereof at law or in equity, or to insist upon compliance by any other party
hereto with its obligations hereunder, and any custom or practice of the
parties at variance with the terms hereof, shall not constitute a waiver by
such party of its right to exercise any such or other right, power or remedy
or to demand such compliance.
 
  (j) No Third Party Beneficiaries. Subject to the provisions of Section
10(c), this Agreement is not intended to be for the benefit of, and shall not
be enforceable by, any person or entity who or which is not a party hereto.
 
  (k) Choice of Law/Consent to Jurisdiction. 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. Each party hereby irrevocably and
unconditionally consents to submit to the exclusive jurisdiction of the courts
of the State of Delaware and of the United States of America located in the
State of Delaware (the "Delaware Courts") for
 
                                      C-6
<PAGE>
 
any litigation arising out of or relating to this Agreement and the
Transactions (and agrees not to commence any litigation relating thereto
except in such courts), waives any objection to the laying of venue of any
such litigation in the Delaware Courts and agrees not to plead or claim in any
Delaware Court that such litigation brought therein has been brought in any
inconvenient forum. Each of the parties hereto agrees, (a) to the extent such
party is not otherwise subject to service of process in the State of Delaware,
to appoint and maintain an agent in the State of Delaware as such party's
agent for acceptance of legal process, and (b) that service of process may
also be made on such party by prepaid certified mail with a proof of mailing
receipt validated by the United States Postal Service constituting evidence of
valid service. Service made pursuant to (a) or (b) above shall have the same
legal force and effect as if served upon such party personally within the
State of Delaware. For purposes of implementing the parties' agreement to
appoint and maintain an agent for service of process in the State of Delaware,
each such party does hereby appoint The Corporation Trust Company, 1209 Orange
Street, Wilmington, New Castle County, Delaware 19801, as such agent.
 
  (l) Descriptive Headings. The descriptive headings used herein are inserted
for convenience of reference only and are not intended to be part of or to
affect the meaning or interpretation of this Agreement.
 
  (m) Counterparts. This Agreement may be executed in counterparts, each of
which shall be deemed to be an original, but all of which, taken together,
shall constitute one and the same Agreement.
 
  (n) No Agreement Until Executed. Irrespective of negotiations among the
parties or the exchanging of drafts of this Agreement, this Agreement shall
not constitute or be deemed to evidence a contract, agreement, arrangement or
understanding among the parties hereto unless and until (i) the Board of
Directors of the Company has approved, for purposes of Section 203 of the
Delaware General Corporation Law and any applicable provision of the Company's
certificate of incorporation, the terms of this Agreement, including, without
limitation, (x) the Stock Option and (y) the irrevocable proxy and voting
provisions set forth in Section 4 of this Agreement, and (ii) this Agreement
is executed by parties hereto.
 
                                      C-7
<PAGE>
 
  In Witness Whereof, the undersigned have caused this Agreement to be duly
executed as of the day and year first above written.
 
                                          Logica Inc.
 
                                                    /s/ Corey Torrence
                                          By: _________________________________
                                            Name: Corey Torrence
                                            Title:President and Chief
                                            Executive Officer
 
                                          Logica Acquisition Corp.
 
                                                    /s/ Corey Torrence
                                          By: _________________________________
                                            Name: Corey Torrence
                                            Title:President
 
                                          Carnegie Group, Inc.
 
                                                   /s/ Dennis Yablonsky
                                          By: _________________________________
                                            Name: Dennis Yablonsky
                                            Title:President and Chief
                                            Executive Officer
 
                                                      /s/ Mark S. Fox
                                          By: _________________________________
                                            Name: Mark S. Fox
 
                                                     /s/ Tressa S. Fox
                                          By: _________________________________
                                            Name: Tressa S. Fox
 
                                                     /s/ Tressa S. Fox
                                          By: _________________________________
                                            Name: Tressa S. Fox, In Trust For
                                            Jacob Fox
 
                                      C-8
<PAGE>
 
                                   SCHEDULE I
 
<TABLE>
<CAPTION>
                                                               NUMBER OF SHARES
                                                                 AND OPTIONS
NAME AND ADDRESS OF STOCKHOLDER                               BENEFICIALLY OWNED
- -------------------------------                               ------------------
<S>                                                           <C>
Mark S. Fox..................................................      330,556
[address]
Tressa S. Fox................................................        1,110
[address]
Tressa S. Fox, in Trust for Jacob Fox........................        1,110
[address]
</TABLE>
 
                                      C-9

<PAGE>
 
                               TENDER AGREEMENT
 
  Agreement, dated as of September 30, 1998, among Logica Inc., a Delaware
corporation ("Parent"), Logica Acquisition Corp., a Delaware corporation and a
wholly owned subsidiary of Parent (the "Purchaser"), Carnegie Group, Inc., a
Delaware corporation (the "Company"), and the stockholders of the Company
signatory hereto (collectively referred to herein as the "Stockholders" and
each, a "Stockholder").
 
                                  Witnesseth:
 
  Whereas, concurrently with the execution and delivery of this Agreement,
Parent, the Purchaser and the Company, have entered into an Agreement and Plan
of Merger (as such agreement may hereafter be amended from time to time, the
"Merger Agreement"), pursuant to which Purchaser will be merged with and into
the Company (the "Merger");
 
  Whereas, in furtherance of the Merger, Parent and the Company desire that as
soon as practicable (and not later than five business days) after the
execution and delivery of the Merger Agreement, the Purchaser shall commence a
cash tender offer (the "Offer") to purchase at a price of $5.00 per share all
outstanding shares of Company Common Stock (as defined in Section 1 hereof)
including all of the Shares (as defined in Section 2 hereof) beneficially
owned by Stockholders; and
 
  Whereas, as an inducement and a condition to entering into the Merger
Agreement, Parent has required that the Stockholders agree, and the
Stockholders have agreed, to enter into this Agreement;
 
  Now, Therefore, in consideration of the foregoing and the mutual
representations, warranties, covenants and agreements contained herein, the
parties hereto agree as follows:
 
  1. Definitions. For purposes of this Agreement:
 
  (a) "Beneficially Own" or "Beneficial Ownership" with respect to any
securities shall mean having "beneficial ownership" of such securities (as
determined pursuant to Rule 13d-3 under the Securities Exchange Act of 1934,
as amended (the "Exchange Act").
 
  (b) "Company Common Stock" shall mean at any time the Common Stock, par
value $.01 per share, of the Company.
 
  (c) "Person" shall mean an individual, corporation, partnership, joint
venture, association, trust, unincorporated organization or other entity.
 
  (d) Capitalized terms used and not defined herein have the respective
meanings ascribed to them in the Merger Agreement.
 
  2. Tender of Shares.
 
  (a) In order to induce Parent and the Purchaser to enter into the Merger
Agreement, each of the Stockholders hereby agrees to validly tender (or cause
the record owner of such shares to validly tender), and not to withdraw,
pursuant to and in accordance with the terms of the Offer, not later than the
fifth business day after commencement of the Offer pursuant to Section 1.1 of
the Merger Agreement and Rule 14d-2 under the Exchange Act, the number of
shares of Company Common Stock set forth opposite such Stockholder's name on
Schedule I hereto (the "Existing Shares", and together with any shares
acquired by such Stockholder in any capacity after the date hereof and prior
to the termination of this Agreement whether upon the exercise of Options or
by means of purchase, dividend, distribution or otherwise, the "Shares"), all
of which are Beneficially Owned by such Stockholder. Each Stockholder hereby
acknowledges and agrees that Parent's and the Purchaser's obligation to accept
for payment and pay for the Shares in the Offer, including the Shares
Beneficially Owned by such Stockholder, is subject to the terms and conditions
of the Offer.
 
                                      B-1
<PAGE>
 
  (b) Upon acceptance and payment therefor by Purchaser, the transfer by the
Stockholders of the Shares to Purchaser in the Offer shall pass to and
unconditionally vest in the Purchaser good and valid title to the Shares, free
and clear of all Encumbrances.
 
  (c) The Stockholders hereby permit Parent and the Purchaser to publish and
disclose in the Offer Documents and, if approval of the Company's stockholders
is required under applicable law, the Proxy Statement (including all documents
and schedules filed with the SEC), their identity and ownership of the Shares
and the nature of their commitments, arrangements and understandings under
this Agreement.
 
  3. Option to Acquire Shares. In order to induce Parent and the Purchaser to
enter into the Merger Agreement, each Stockholder hereby grants to Parent an
irrevocable option (a "Stock Option") to purchase such Stockholder's Shares
(the "Option Shares") at an amount (the "Purchase Price") equal to the Offer
Price. If (i) the Offer is terminated, abandoned or withdrawn by Parent or the
Purchaser due to the failure of paragraph (g) or (h) of the conditions set
forth in Annex A to the Merger Agreement, or (ii) the Merger Agreement is
terminated by the Company pursuant to Section 9.1(c)(ii) thereof, each Stock
Option shall, in any such case, become exercisable, in whole or in part, upon
the first to occur of any such event and remain exercisable in whole or in
part until the date which is 60 days after the date of the occurrence of such
event (the "60 Day Period"), so long as: (i) all waiting periods under the HSR
Act required for the purchase of the Option Shares upon such exercise shall
have expired or been waived, and (ii) there shall not be in effect any
preliminary or final injunction or other order issued by any Governmental
Entity prohibiting the exercise of the Stock Options pursuant to this
Agreement; provided, however, that if all HSR Act waiting periods shall not
have expired or been waived or there shall be in effect any such injunction or
order, in each case on the expiration of the 60 Day Period, the 60 Day Period
shall be extended until five (5) business days after the later of (A) the date
of expiration or waiver of all HSR Act waiting periods or (B) the date of
removal or lifting of such injunction or order. In the event that Parent
wishes to exercise a Stock Option, Parent shall send a written notice (the
"Notice") to the Stockholders identifying the place and date (not less than
two nor more than five (5) business days from the date of the Notice) for the
closing of such purchase.
 
  4. Additional Agreements.
 
  (a) Voting Agreement. Each Stockholder shall, at any meeting of the holders
of Company Common Stock, however called, or in connection with any written
consent of the holders of Company Common Stock, vote (or cause to be voted)
the Shares (if any) then held of record or Beneficially Owned by such
Stockholder, (i) in favor of the Merger, the execution and delivery by the
Company of the Merger Agreement and the approval of the terms thereof and each
of the other actions contemplated by the Merger Agreement and this Agreement
and any actions required in furtherance thereof and hereof; and (ii) against
any Acquisition Proposal and against any action or agreement that would
impede, frustrate, prevent or nullify this Agreement, or result in a breach in
any respect of any covenant, representation or warranty or any other
obligation or agreement of the Company under the Merger Agreement or which
would result in any of the conditions set forth in Annex A to the Merger
Agreement or set forth in Article VIII of the Merger Agreement not being
fulfilled.
 
  (b) No Inconsistent Arrangements. Each of the Stockholders hereby covenants
and agrees that, except as contemplated by this Agreement and the Merger
Agreement, it shall not (i) transfer (which term shall include, without
limitation, any sale, gift, pledge or other disposition), or consent to any
transfer of, any or all of such Stockholder's Shares, Options or any interest
therein, (ii) enter into any contract, option or other agreement or
understanding with respect to any transfer of any or all of such Shares,
Options or any interest therein, (iii) grant any proxy, power-of-attorney or
other authorization in or with respect to such Shares or Options, (iv) deposit
such Shares or Options into a voting trust or enter into a voting agreement or
arrangement with respect to such Shares or Options, or (v) take any other
action that would in any way restrict, limit or interfere with the performance
of its obligations hereunder or the transactions contemplated hereby or by the
Merger Agreement.
 
  (c) Grant of Irrevocable Proxy; Appointment of Proxy.
 
                                      B-2
<PAGE>
 
    (i) Each Stockholder hereby irrevocably grants to, and appoints, Parent,
  Corey Torrence and Doug Webb, or either of them, in their respective
  capacities as officers of Parent, and any individual who shall hereafter
  succeed to any such office of Parent, and each of them individually, such
  Stockholder's proxy and attorney-in-fact (with full power of substitution),
  for and in the name, place and stead of such Stockholder, to vote such
  Stockholder's Shares, or grant a consent or approval in respect of the
  Shares in favor of any or all of the Transactions and against any
  Acquisition Proposal.
 
    (ii) Each Stockholder represents that any proxies heretofore given in
  respect of such Stockholder's Shares are not irrevocable, and that any such
  proxies are hereby revoked.
 
    (ii) Each Stockholder understands and acknowledges that Parent is
  entering into the Merger Agreement in reliance upon such Stockholder's
  execution and delivery of this Agreement. Each Stockholder hereby affirms
  that the irrevocable proxy set forth in this Section 4(c) is given in
  connection with the execution of the Merger Agreement, and that such
  irrevocable proxy is given to secure the performance of the duties of such
  Stockholder under this Agreement. Each Stockholder hereby further affirms
  that the irrevocable proxy is coupled with an interest and may under no
  circumstances be revoked. Each Stockholder hereby ratifies and confirms all
  that such irrevocable proxy may lawfully do or cause to be done by virtue
  hereof. Such irrevocable proxy is executed and intended to be irrevocable
  in accordance with the provisions of Section 212(e) of the Delaware General
  Corporation Law.
 
  (d) No Solicitation. Each Stockholder hereby agrees, in the capacity as a
Stockholder or otherwise, that neither such Stockholder nor any of its
Subsidiaries or affiliates shall (and such Stockholder shall use its best
efforts to cause its officers, directors, employees, representatives and
agents, including, but not limited to, investment bankers, attorneys and
accountants, not to), directly or indirectly, encourage, solicit, participate
in or initiate discussions or negotiations with, or provide any information
to, any corporation, partnership, person or other entity or group (other than
Parent, any of its affiliates or representatives) concerning any Acquisition
Proposal or take any other action prohibited by Section 7.4 of the Merger
Agreement. Each Stockholder will immediately cease any existing activities,
discussions or negotiations with any parties conducted heretofore with respect
to any Acquisition Proposal. Each Stockholder will immediately communicate to
Parent the terms of any proposal, discussion, negotiation or inquiry (and will
disclose any written materials received by such Stockholder in connection with
such proposal, discussion, negotiation or inquiry) and the identity of the
party making such proposal or inquiry which it may receive in respect of any
such transaction.
 
  (e) Waiver of Appraisal Rights. Each Stockholder hereby waives any rights of
appraisal or rights to dissent from the Merger that such Stockholder may have.
 
  5. Representations and Warranties of the Stockholders. Each Stockholder
hereby represents and warrants to Parent as follows:
 
    (a) Ownership of Shares. Such Stockholder is the record and Beneficial
  Owner of the Shares, as set forth on Schedule I. On the date hereof, the
  Existing Shares constitute all of the Shares owned of record or
  Beneficially Owned by such Stockholder. Such Stockholder has sole voting
  power and sole power to issue instructions with respect to the matters set
  forth in Sections 2, 3 and 4 hereof, sole power of disposition, sole power
  of conversion, sole power to demand appraisal rights and sole power to
  agree to all of the matters set forth in this Agreement, in each case with
  respect to all of the Existing Shares with no limitations, qualifications
  or restrictions on such rights, subject to applicable securities laws and
  the terms of this Agreement.
 
    (b) Power; Binding Agreement. Each Stockholder has the legal capacity,
  power and authority to enter into and perform all of such Stockholder's
  obligations under this Agreement. The execution, delivery and performance
  of this Agreement by such Stockholder will not violate any other agreement
  to which such Stockholder is a party including, without limitation, any
  voting agreement, proxy arrangement, pledge agreement, shareholders
  agreement or voting trust. This Agreement has been duly and validly
  executed and delivered by such Stockholder and constitutes a valid and
  binding agreement of such Stockholder, enforceable against such Stockholder
  in accordance with its terms. There is no beneficiary or holder of a
 
                                      B-3
<PAGE>
 
  voting trust certificate or other interest of any trust of which such
  Stockholder is a trustee whose consent is required for the execution and
  delivery of this Agreement or the consummation by such Stockholder of the
  transactions contemplated hereby.
 
    (c) No Conflicts. Except for filings under the HSR Act and the Exchange
  Act, (i) no filing with, and no permit, authorization, consent or approval
  of, any Governmental Entity is necessary for the execution of this
  Agreement by such Stockholder and the consummation by such Stockholder of
  the transactions contemplated hereby and (ii) none of the execution and
  delivery of this Agreement by such Stockholder, the consummation by such
  Stockholder of the transactions contemplated hereby or compliance by such
  Stockholder with any of the provisions hereof shall (A) conflict with or
  result in any breach of any organizational documents applicable to the
  Stockholder, (B) result in a violation or breach of, or constitute (with or
  without notice or lapse of time or both) a default (or give rise to any
  third party right of termination, cancellation, material modification or
  acceleration) under any of the terms, conditions or provisions of any note,
  loan agreement, bond, mortgage, indenture, license, contract, commitment,
  arrangement, understanding, agreement or other instrument or obligation of
  any kind to which such Stockholder is a party or by which such Stockholder
  or any of its properties or assets may be bound, or (C) violate any order,
  writ, injunction, decree, judgment, statute, rule or regulation applicable
  to such Stockholder or any of its properties or assets.
 
    (d) No Encumbrances. Except as permitted by this Agreement, the Shares
  and the certificates representing such Shares are now, and at all times
  during the term hereof will be, held by such Stockholder, or by a nominee
  or custodian for the benefit of such Stockholder, free and clear of all
  Encumbrances, proxies, voting trusts or agreements, understandings or
  arrangements or any other rights whatsoever, except for any such
  Encumbrances or proxies arising hereunder.
 
    (e) No Finder's Fees. No broker, investment banker, financial advisor or
  other person is entitled to any broker's, finder's, financial adviser's or
  other similar fee or commission in connection with the transactions
  contemplated hereby based upon arrangements made by or on behalf of such
  Stockholder.
 
    (f) Reliance by Parent. Each Stockholder understands and acknowledges
  that Parent is entering into, and causing Purchaser to enter into, the
  Merger Agreement in reliance upon such Stockholder's execution and delivery
  of this Agreement. Each of Parent, Purchaser and the Company acknowledges
  and agrees that in the event of any willful breach by any Stockholder of
  the provisions of Section 4(d) hereof, Parent and Purchaser shall be
  entitled to receive from the Company, and the Company shall be obligated to
  pay to Parent and Purchaser, the amounts set forth in Section 9.2(b) of the
  Merger Agreement in accordance with Section 9.2(c) of the Merger Agreement.
  Each of Parent, Purchaser and the Company acknowledges and agrees that the
  amounts payable to Parent and Purchaser pursuant to the preceding sentence
  shall be Parent's and Purchaser's sole remedy (other than specific
  performance) for any breach by any Stockholder of the provisions of Section
  4(d) hereof.
 
  6. Representations and Warranties of Parent and the Purchaser. Each of
Parent and the Purchaser hereby represents and warrants to the Stockholders as
follows:
 
    (a) Power; Binding Agreement. Each of Parent and the Purchaser has the
  corporate power and authority to enter into and perform all of its
  obligations under this Agreement. The execution, delivery and performance
  of this Agreement by each of Parent and the Purchaser will not violate any
  other agreement to which either of them is a party. This Agreement has been
  duly and validly executed and delivered by each of Parent and the Purchaser
  and constitutes a valid and binding agreement of each of Parent and the
  Purchaser, enforceable against each of Parent and the Purchaser in
  accordance with its terms.
 
    (b) No Conflicts. Except for filings under the HSR Act and the Exchange
  Act, (i) no filing with, and no permit, authorization, consent or approval
  of, any Governmental Entity is necessary for the execution of this
  Agreement by each of Parent and the Purchaser and the consummation by each
  of Parent and the Purchaser of the transactions contemplated hereby and
  (ii) none of the execution and delivery of this Agreement by each of Parent
  and the Purchaser, the consummation by each of Parent and the Purchaser of
  the transactions contemplated hereby or compliance by each of Parent and
  the Purchaser with any of the
 
                                      B-4
<PAGE>
 
  provisions hereof shall (A) conflict with or result in any breach of any
  organizational documents applicable to either of Parent or the Purchaser,
  (B) result in a violation or breach of, or constitute (with or without
  notice or lapse of time or both) a default (or give rise to any third party
  right of termination, cancellation, material modification or acceleration)
  under any of the terms, conditions or provisions of any note, loan
  agreement, bond, mortgage, indenture, license, contract, commitment,
  arrangement, understanding, agreement or other instrument or obligation of
  any kind to which either of Parent or the Purchaser is a party or by which
  either of Parent or the Purchaser or any of their properties or assets may
  be bound, or (C) violate any order, writ, injunction, decree, judgment,
  statute, rule or regulation applicable to either of Parent or the Purchaser
  or any of their properties or assets.
 
  7. Further Assurances. From time to time, at the other party's request and
without further consideration, each party hereto shall execute and deliver
such additional documents and take all such further lawful action as may be
necessary or desirable to consummate and make effective, in the most
expeditious manner practicable, the transactions contemplated by this
Agreement.
 
  8. Stop Transfer. The Stockholders shall not request that the Company
register the transfer (book-entry or otherwise) of any certificate or
uncertificated interest representing any of the Shares, unless such transfer
is made in compliance with this Agreement. In the event of a stock dividend or
distribution, or any change in the Company Common Stock by reason of any stock
dividend, split-up, recapitalization, combination, exchange of shares or the
like, the term "Shares" shall refer to and include the Shares as well as all
such stock dividends and distributions and any shares into which or for which
any or all of the Shares may be changed or exchanged.
 
  9. Termination. Except as provided in Section 3 hereof, the covenants and
agreements contained herein with respect to the Shares shall terminate upon
the termination of the Merger Agreement in accordance with its terms;
provided, however, that during the term of the Stock Option, the Stockholders
shall ensure that the representations and warranties set forth in Section 5
continue to be true and correct.
 
  10. Miscellaneous.
 
  (a) Entire Agreement. This Agreement constitutes the entire agreement
between the parties with respect to the subject matter hereof and supersedes
all other prior agreements and understandings, both written and oral, between
the parties with respect to the subject matter hereof.
 
  (b) Binding Agreement. This Agreement and the obligations hereunder shall
attach to the Shares and shall be binding upon any person or entity to which
legal or beneficial ownership of such Shares shall pass, whether by operation
of law or otherwise, including, without limitation, a Stockholder's heirs,
guardians, administrators or successors. Notwithstanding any transfer of
Shares, the transferor shall remain liable for the performance of all
obligations of the transferor under this Agreement.
 
  (c) Assignment. This Agreement shall not be assigned by operation of law or
otherwise without the prior written consent of the other parties, provided
that Parent may assign, in its sole discretion, its rights and obligations
hereunder to any direct or indirect wholly owned Subsidiary of Parent, but no
such assignment shall relieve Parent of its obligations hereunder if such
assignee does not perform such obligations.
 
  (d) Amendments Waivers, Etc. This Agreement may not be amended, changed,
supplemented, waived or otherwise modified or terminated, except upon the
execution and delivery of a written agreement executed by the parties hereto.
 
  (e) Notices. All notices, requests, claims, demands and other communications
hereunder shall be in writing and shall be given (and shall be deemed to have
been duly received if given) by hand delivery or telecopy (with a confirmation
copy sent for next day delivery via courier service, such as Federal Express),
or by any courier service, such as Federal Express, providing proof of
delivery. All communications hereunder shall be delivered to the respective
parties at the following addresses:
 
 
                                      B-5
<PAGE>
 
  If to a Stockholder:
                  to such Stockholder's address set forth on Schedule I hereto
 
  If to a Parent or
  the Purchaser:  Logica Inc.
                  32 Hartwell Avenue
                  Lexington, MA 02421
                  Attention: Corey Torrence, President
                  Telephone No.: (617) 476-8000
                  Telecopy No.: (617) 476-8010
 
  copy to:        Goodwin, Procter & Hoar llp
                  Exchange Place
                  Boston, MA 02109
                  Attention: Joseph L. Johnson III, Esq.
                  Telephone No.:  (617) 570-1000
                  Telecopy No.: (617) 523-1231
 
or to such other address as the person to whom notice is given may have
previously furnished to the others in writing in the manner set forth above.
 
  (f) Severability. Whenever possible, each provision or portion of any
provision of this Agreement will be interpreted in such manner as to be
effective and valid under applicable law but if any provision or portion of
any provision of this Agreement is held to be invalid, illegal or
unenforceable in any respect under any applicable law or rule in any
jurisdiction, such invalidity, illegality or unenforceability will not affect
any other provision or portion of any provision in such jurisdiction, and this
Agreement will be reformed, construed and enforced in such jurisdiction as if
such invalid, illegal or unenforceable provision or portion of any provision
had never been contained herein.
 
  (g) Specific Performance. Each of the parties hereto recognizes and
acknowledges that a breach by it of any covenants or agreements contained in
this Agreement will cause the other party to sustain damages for which it
would not have an adequate remedy at law for money damages, and therefore in
the event of any such breach the aggrieved party shall be entitled to the
remedy of specific performance of such covenants and agreements and injunctive
and other equitable relief in addition to any other remedy to which it may be
entitled, at law or in equity (subject to Section 4(f) hereof).
 
  (h) Remedies Cumulative. All rights, powers and remedies provided under this
Agreement or otherwise available in respect hereof at law or in equity shall
be cumulative and not alternative or exclusive, and the exercise of any
thereof by any party shall not preclude the simultaneous or later exercise of
any other such right, power or remedy by such party (subject to Section 4(f)
hereof).
 
  (i) No Waiver. The failure of any party hereto to exercise any right, power
or remedy provided under this Agreement or otherwise available in respect
hereof at law or in equity, or to insist upon compliance by any other party
hereto with its obligations hereunder, and any custom or practice of the
parties at variance with the terms hereof, shall not constitute a waiver by
such party of its right to exercise any such or other right, power or remedy
or to demand such compliance.
 
  (j) No Third Party Beneficiaries. Subject to the provisions of Section
10(c), this Agreement is not intended to be for the benefit of, and shall not
be enforceable by, any person or entity who or which is not a party hereto.
 
  (k) Choice of Law/Consent to Jurisdiction. 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. Each party hereby irrevocably and
unconditionally consents to submit to the exclusive jurisdiction of the courts
of the State of Delaware and of the United States of America located in the
State of Delaware (the "Delaware Courts") for
 
                                      B-6
<PAGE>
 
any litigation arising out of or relating to this Agreement and the
Transactions (and agrees not to commence any litigation relating thereto
except in such courts), waives any objection to the laying of venue of any
such litigation in the Delaware Courts and agrees not to plead or claim in any
Delaware Court that such litigation brought therein has been brought in any
inconvenient forum. Each of the parties hereto agrees, (a) to the extent such
party is not otherwise subject to service of process in the State of Delaware,
to appoint and maintain an agent in the State of Delaware as such party's
agent for acceptance of legal process, and (b) that service of process may
also be made on such party by prepaid certified mail with a proof of mailing
receipt validated by the United States Postal Service constituting evidence of
valid service. Service made pursuant to (a) or (b) above shall have the same
legal force and effect as if served upon such party personally within the
State of Delaware. For purposes of implementing the parties' agreement to
appoint and maintain an agent for service of process in the State of Delaware,
each such party does hereby appoint The Corporation Trust Company, 1209 Orange
Street, Wilmington, New Castle County, Delaware 19801, as such agent.
 
  (l) Descriptive Headings. The descriptive headings used herein are inserted
for convenience of reference only and are not intended to be part of or to
affect the meaning or interpretation of this Agreement.
 
  (m) Counterparts. This Agreement may be executed in counterparts, each of
which shall be deemed to be an original, but all of which, taken together,
shall constitute one and the same Agreement.
 
  (n) No Agreement Until Executed. Irrespective of negotiations among the
parties or the exchanging of drafts of this Agreement, this Agreement shall
not constitute or be deemed to evidence a contract, agreement, arrangement or
understanding among the parties hereto unless and until (i) the Board of
Directors of the Company has approved, for purposes of Section 203 of the
Delaware General Corporation Law and any applicable provision of the Company's
certificate of incorporation, the terms of this Agreement, including, without
limitation, (x) the Stock Option and (y) the irrevocable proxy and voting
provisions set forth in Section 4 of this Agreement, and (ii) this Agreement
is executed by parties hereto.
 
                                      B-7
<PAGE>
 
  In Witness Whereof, the undersigned have caused this Agreement to be duly
executed as of the day and year first above written.
 
                                          Logica Inc.
 
                                                    /s/ Corey Torrence
                                          By: _________________________________
                                            Name: Corey Torrence
                                            Title:President and Chief
                                            Executive Officer
 
                                          Logica Acquisition Corp.
 
                                                    /s/ Corey Torrence
                                          By: _________________________________
                                            Name: Corey Torrence
                                            Title:President
 
                                          Carnegie Group, Inc.
 
                                                   /s/ Dennis Yablonsky
                                          By: _________________________________
                                            Name: Dennis Yablonsky
                                            Title:President and Chief
                                            Executive Officer
 
                                                   /s/ Dennis Yablonsky
                                          By: _________________________________
                                            Name: Dennis Yablonsky
 
                                                  /s/ Veronica Yablonsky
                                          By: _________________________________
                                            Name: Veronica Yablonsky
 
                                      B-8
<PAGE>
 
                                   SCHEDULE I
 
<TABLE>
<CAPTION>
                                                               NUMBER OF SHARES
                                                                 AND OPTIONS
NAME AND ADDRESS OF STOCKHOLDER                               BENEFICIALLY OWNED
- -------------------------------                               ------------------
<S>                                                           <C>
Dennis Yablonsky and Veronica Yablonsky......................      108,000
[address]
</TABLE>
 
                                      B-9

<PAGE>
 
                               TENDER AGREEMENT
 
  Agreement, dated as of September 30, 1998, among Logica Inc., a Delaware
corporation ("Parent"), Logica Acquisition Corp., a Delaware corporation and a
wholly owned subsidiary of Parent (the "Purchaser"), Carnegie Group, Inc., a
Delaware corporation (the "Company"), and the stockholders of the Company
signatory hereto (collectively referred to herein as the "Stockholders" and
each, a "Stockholder").
 
                                  Witnesseth:
 
  Whereas, concurrently with the execution and delivery of this Agreement,
Parent, the Purchaser and the Company, have entered into an Agreement and Plan
of Merger (as such agreement may hereafter be amended from time to time, the
"Merger Agreement"), pursuant to which Purchaser will be merged with and into
the Company (the "Merger");
 
  Whereas, in furtherance of the Merger, Parent and the Company desire that as
soon as practicable (and not later than five business days) after the
execution and delivery of the Merger Agreement, the Purchaser shall commence a
cash tender offer (the "Offer") to purchase at a price of $5.00 per share all
outstanding shares of Company Common Stock (as defined in Section 1 hereof)
including all of the Shares (as defined in Section 2 hereof) beneficially
owned by Stockholders; and
 
  Whereas, as an inducement and a condition to entering into the Merger
Agreement, Parent has required that the Stockholders agree, and the
Stockholders have agreed, to enter into this Agreement;
 
  Npw, Therefore, in consideration of the foregoing and the mutual
representations, warranties, covenants and agreements contained herein, the
parties hereto agree as follows:
 
  1. Definitions. For purposes of this Agreement:
 
  (a) "Beneficially Own" or "Beneficial Ownership" with respect to any
securities shall mean having "beneficial ownership" of such securities (as
determined pursuant to Rule 13d-3 under the Securities Exchange Act of 1934,
as amended (the "Exchange Act").
 
  (b) "Company Common Stock" shall mean at any time the Common Stock, par
value $.01 per share, of the Company.
 
  (c) "Person" shall mean an individual, corporation, partnership, joint
venture, association, trust, unincorporated organization or other entity.
 
  (d) Capitalized terms used and not defined herein have the respective
meanings ascribed to them in the Merger Agreement.
 
  2. Tender of Shares.
 
  (a) In order to induce Parent and the Purchaser to enter into the Merger
Agreement, each of the Stockholders hereby agrees to validly tender (or cause
the record owner of such shares to validly tender), and not to withdraw,
pursuant to and in accordance with the terms of the Offer, not later than the
fifth business day after commencement of the Offer pursuant to Section 1.1 of
the Merger Agreement and Rule 14d-2 under the Exchange Act, the number of
shares of Company Common Stock set forth opposite such Stockholder's name on
Schedule I hereto (the "Existing Shares", and together with any shares
acquired by such Stockholder in any capacity after the date hereof and prior
to the termination of this Agreement whether upon the exercise of Options or
by means of purchase, dividend, distribution or otherwise, the "Shares"), all
of which are Beneficially Owned by such Stockholder. Each Stockholder hereby
acknowledges and agrees that Parent's and the Purchaser's obligation to accept
for payment and pay for the Shares in the Offer, including the Shares
Beneficially Owned by such Stockholder, is subject to the terms and conditions
of the Offer.
 
                                      E-1
<PAGE>
 
  (b) Upon acceptance and payment therefor by Purchaser, the transfer by the
Stockholders of the Shares to Purchaser in the Offer shall pass to and
unconditionally vest in the Purchaser good and valid title to the Shares, free
and clear of all Encumbrances.
 
  (c) The Stockholders hereby permit Parent and the Purchaser to publish and
disclose in the Offer Documents and, if approval of the Company's stockholders
is required under applicable law, the Proxy Statement (including all documents
and schedules filed with the SEC), their identity and ownership of the Shares
and the nature of their commitments, arrangements and understandings under
this Agreement.
 
  3. Option to Acquire Shares. In order to induce Parent and the Purchaser to
enter into the Merger Agreement, each Stockholder hereby grants to Parent an
irrevocable option (a "Stock Option") to purchase such Stockholder's Shares
(the "Option Shares") at an amount (the "Purchase Price") equal to the Offer
Price. If (i) the Offer is terminated, abandoned or withdrawn by Parent or the
Purchaser due to the failure of paragraph (g) or (h) of the conditions set
forth in Annex A to the Merger Agreement, or (ii) the Merger Agreement is
terminated by the Company pursuant to Section 9.1(c)(ii) thereof, each Stock
Option shall, in any such case, become exercisable, in whole or in part, upon
the first to occur of any such event and remain exercisable in whole or in
part until the date which is 60 days after the date of the occurrence of such
event (the "60 Day Period"), so long as: (i) all waiting periods under the HSR
Act required for the purchase of the Option Shares upon such exercise shall
have expired or been waived, and (ii) there shall not be in effect any
preliminary or final injunction or other order issued by any Governmental
Entity prohibiting the exercise of the Stock Options pursuant to this
Agreement; provided, however, that if all HSR Act waiting periods shall not
have expired or been waived or there shall be in effect any such injunction or
order, in each case on the expiration of the 60 Day Period, the 60 Day Period
shall be extended until five (5) business days after the later of (A) the date
of expiration or waiver of all HSR Act waiting periods or (B) the date of
removal or lifting of such injunction or order. In the event that Parent
wishes to exercise a Stock Option, Parent shall send a written notice (the
"Notice") to the Stockholders identifying the place and date (not less than
two nor more than five (5) business days from the date of the Notice) for the
closing of such purchase.
 
  4. Additional Agreements.
 
  (a) Voting Agreement. Each Stockholder shall, at any meeting of the holders
of Company Common Stock, however called, or in connection with any written
consent of the holders of Company Common Stock, vote (or cause to be voted)
the Shares (if any) then held of record or Beneficially Owned by such
Stockholder, (i) in favor of the Merger, the execution and delivery by the
Company of the Merger Agreement and the approval of the terms thereof and each
of the other actions contemplated by the Merger Agreement and this Agreement
and any actions required in furtherance thereof and hereof; and (ii) against
any Acquisition Proposal and against any action or agreement that would
impede, frustrate, prevent or nullify this Agreement, or result in a breach in
any respect of any covenant, representation or warranty or any other
obligation or agreement of the Company under the Merger Agreement or which
would result in any of the conditions set forth in Annex A to the Merger
Agreement or set forth in Article VIII of the Merger Agreement not being
fulfilled.
 
  (b) No Inconsistent Arrangements. Each of the Stockholders hereby covenants
and agrees that, except as contemplated by this Agreement and the Merger
Agreement, it shall not (i) transfer (which term shall include, without
limitation, any sale, gift, pledge or other disposition), or consent to any
transfer of, any or all of such Stockholder's Shares, Options or any interest
therein, (ii) enter into any contract, option or other agreement or
understanding with respect to any transfer of any or all of such Shares,
Options or any interest therein, (iii) grant any proxy, power-of-attorney or
other authorization in or with respect to such Shares or Options, (iv) deposit
such Shares or Options into a voting trust or enter into a voting agreement or
arrangement with respect to such Shares or Options, or (v) take any other
action that would in any way restrict, limit or interfere with the performance
of its obligations hereunder or the transactions contemplated hereby or by the
Merger Agreement.
 
  (c) Grant of Irrevocable Proxy; Appointment of Proxy.
 
 
                                      E-2
<PAGE>
 
    (i) Each Stockholder hereby irrevocably grants to, and appoints, Parent,
  Corey Torrence and Doug Webb, or either of them, in their respective
  capacities as officers of Parent, and any individual who shall hereafter
  succeed to any such office of Parent, and each of them individually, such
  Stockholder's proxy and attorney-in-fact (with full power of substitution),
  for and in the name, place and stead of such Stockholder, to vote such
  Stockholder's Shares, or grant a consent or approval in respect of the
  Shares in favor of any or all of the Transactions and against any
  Acquisition Proposal.
 
    (ii) Each Stockholder represents that any proxies heretofore given in
  respect of such Stockholder's Shares are not irrevocable, and that any such
  proxies are hereby revoked.
 
    (iii) Each Stockholder understands and acknowledges that Parent is
  entering into the Merger Agreement in reliance upon such Stockholder's
  execution and delivery of this Agreement. Each Stockholder hereby affirms
  that the irrevocable proxy set forth in this Section 4(c) is given in
  connection with the execution of the Merger Agreement, and that such
  irrevocable proxy is given to secure the performance of the duties of such
  Stockholder under this Agreement. Each Stockholder hereby further affirms
  that the irrevocable proxy is coupled with an interest and may under no
  circumstances be revoked. Each Stockholder hereby ratifies and confirms all
  that such irrevocable proxy may lawfully do or cause to be done by virtue
  hereof. Such irrevocable proxy is executed and intended to be irrevocable
  in accordance with the provisions of Section 212(e) of the Delaware General
  Corporation Law.
 
  (d) No Solicitation. Each Stockholder hereby agrees, in the capacity as a
Stockholder or otherwise, that neither such Stockholder nor any of its
Subsidiaries or affiliates shall (and such Stockholder shall use its best
efforts to cause its officers, directors, employees, representatives and
agents, including, but not limited to, investment bankers, attorneys and
accountants, not to), directly or indirectly, encourage, solicit, participate
in or initiate discussions or negotiations with, or provide any information
to, any corporation, partnership, person or other entity or group (other than
Parent, any of its affiliates or representatives) concerning any Acquisition
Proposal or take any other action prohibited by Section 7.4 of the Merger
Agreement. Each Stockholder will immediately cease any existing activities,
discussions or negotiations with any parties conducted heretofore with respect
to any Acquisition Proposal. Each Stockholder will immediately communicate to
Parent the terms of any proposal, discussion, negotiation or inquiry (and will
disclose any written materials received by such Stockholder in connection with
such proposal, discussion, negotiation or inquiry) and the identity of the
party making such proposal or inquiry which it may receive in respect of any
such transaction.
 
  (e) Waiver of Appraisal Rights. Each Stockholder hereby waives any rights of
appraisal or rights to dissent from the Merger that such Stockholder may have.
 
  5. Representations and Warranties of the Stockholders. Each Stockholder
hereby represents and warrants to Parent as follows:
 
    (a) Ownership of Shares. Such Stockholder is the record and Beneficial
  Owner of the Shares, as set forth on Schedule I. On the date hereof, the
  Existing Shares constitute all of the Shares owned of record or
  Beneficially Owned by such Stockholder. Such Stockholder has sole voting
  power and sole power to issue instructions with respect to the matters set
  forth in Sections 2, 3 and 4 hereof, sole power of disposition, sole power
  of conversion, sole power to demand appraisal rights and sole power to
  agree to all of the matters set forth in this Agreement, in each case with
  respect to all of the Existing Shares with no limitations, qualifications
  or restrictions on such rights, subject to applicable securities laws and
  the terms of this Agreement.
 
    (b) Power; Binding Agreement. Each Stockholder has the legal capacity,
  power and authority to enter into and perform all of such Stockholder's
  obligations under this Agreement. The execution, delivery and performance
  of this Agreement by such Stockholder will not violate any other agreement
  to which such Stockholder is a party including, without limitation, any
  voting agreement, proxy arrangement, pledge agreement, shareholders
  agreement or voting trust. This Agreement has been duly and validly
  executed and delivered by such Stockholder and constitutes a valid and
  binding agreement of such Stockholder, enforceable against such Stockholder
  in accordance with its terms. There is no beneficiary or holder of a
 
                                      E-3
<PAGE>
 
  voting trust certificate or other interest of any trust of which such
  Stockholder is a trustee whose consent is required for the execution and
  delivery of this Agreement or the consummation by such Stockholder of the
  transactions contemplated hereby.
 
    (c) No Conflicts. Except for filings under the HSR Act and the Exchange
  Act, (i) no filing with, and no permit, authorization, consent or approval
  of, any Governmental Entity is necessary for the execution of this
  Agreement by such Stockholder and the consummation by such Stockholder of
  the transactions contemplated hereby and (ii) none of the execution and
  delivery of this Agreement by such Stockholder, the consummation by such
  Stockholder of the transactions contemplated hereby or compliance by such
  Stockholder with any of the provisions hereof shall (A) conflict with or
  result in any breach of any organizational documents applicable to the
  Stockholder, (B) result in a violation or breach of, or constitute (with or
  without notice or lapse of time or both) a default (or give rise to any
  third party right of termination, cancellation, material modification or
  acceleration) under any of the terms, conditions or provisions of any note,
  loan agreement, bond, mortgage, indenture, license, contract, commitment,
  arrangement, understanding, agreement or other instrument or obligation of
  any kind to which such Stockholder is a party or by which such Stockholder
  or any of its properties or assets may be bound, or (C) violate any order,
  writ, injunction, decree, judgment, statute, rule or regulation applicable
  to such Stockholder or any of its properties or assets.
 
    (d) No Encumbrances. Except as permitted by this Agreement, the Shares
  and the certificates representing such Shares are now, and at all times
  during the term hereof will be, held by such Stockholder, or by a nominee
  or custodian for the benefit of such Stockholder, free and clear of all
  Encumbrances, proxies, voting trusts or agreements, understandings or
  arrangements or any other rights whatsoever, except for any such
  Encumbrances or proxies arising hereunder.
 
    (e) No Finder's Fees. No broker, investment banker, financial advisor or
  other person is entitled to any broker's, finder's, financial adviser's or
  other similar fee or commission in connection with the transactions
  contemplated hereby based upon arrangements made by or on behalf of such
  Stockholder.
 
    (f) Reliance by Parent. Each Stockholder understands and acknowledges
  that Parent is entering into, and causing Purchaser to enter into, the
  Merger Agreement in reliance upon such Stockholder's execution and delivery
  of this Agreement. Each of Parent, Purchaser and the Company acknowledges
  and agrees that in the event of any willful breach by any Stockholder of
  the provisions of Section 4(d) hereof, Parent and Purchaser shall be
  entitled to receive from the Company, and the Company shall be obligated to
  pay to Parent and Purchaser, the amounts set forth in Section 9.2(b) of the
  Merger Agreement in accordance with Section 9.2(c) of the Merger Agreement.
  Each of Parent, Purchaser and the Company acknowledges and agrees that the
  amounts payable to Parent and Purchaser pursuant to the preceding sentence
  shall be Parent's and Purchaser's sole remedy (other than specific
  performance) for any breach by any Stockholder of the provisions of Section
  4(d) hereof.
 
  6. Representations and Warranties of Parent and the Purchaser. Each of
Parent and the Purchaser hereby represents and warrants to the Stockholders as
follows:
 
    (a) Power; Binding Agreement. Each of Parent and the Purchaser has the
  corporate power and authority to enter into and perform all of its
  obligations under this Agreement. The execution, delivery and performance
  of this Agreement by each of Parent and the Purchaser will not violate any
  other agreement to which either of them is a party. This Agreement has been
  duly and validly executed and delivered by each of Parent and the Purchaser
  and constitutes a valid and binding agreement of each of Parent and the
  Purchaser, enforceable against each of Parent and the Purchaser in
  accordance with its terms.
 
    (b) No Conflicts. Except for filings under the HSR Act and the Exchange
  Act, (i) no filing with, and no permit, authorization, consent or approval
  of, any Governmental Entity is necessary for the execution of this
  Agreement by each of Parent and the Purchaser and the consummation by each
  of Parent and the Purchaser of the transactions contemplated hereby and
  (ii) none of the execution and delivery of this Agreement by each of Parent
  and the Purchaser, the consummation by each of Parent and the Purchaser of
  the transactions contemplated hereby or compliance by each of Parent and
  the Purchaser with any of the
 
                                      E-4
<PAGE>
 
  provisions hereof shall (A) conflict with or result in any breach of any
  organizational documents applicable to either of Parent or the Purchaser,
  (B) result in a violation or breach of, or constitute (with or without
  notice or lapse of time or both) a default (or give rise to any third party
  right of termination, cancellation, material modification or acceleration)
  under any of the terms, conditions or provisions of any note, loan
  agreement, bond, mortgage, indenture, license, contract, commitment,
  arrangement, understanding, agreement or other instrument or obligation of
  any kind to which either of Parent or the Purchaser is a party or by which
  either of Parent or the Purchaser or any of their properties or assets may
  be bound, or (C) violate any order, writ, injunction, decree, judgment,
  statute, rule or regulation applicable to either of Parent or the Purchaser
  or any of their properties or assets.
 
  7. Further Assurances. From time to time, at the other party's request and
without further consideration, each party hereto shall execute and deliver
such additional documents and take all such further lawful action as may be
necessary or desirable to consummate and make effective, in the most
expeditious manner practicable, the transactions contemplated by this
Agreement.
 
  8. Stop Transfer. The Stockholders shall not request that the Company
register the transfer (book-entry or otherwise) of any certificate or
uncertificated interest representing any of the Shares, unless such transfer
is made in compliance with this Agreement. In the event of a stock dividend or
distribution, or any change in the Company Common Stock by reason of any stock
dividend, split-up, recapitalization, combination, exchange of shares or the
like, the term "Shares" shall refer to and include the Shares as well as all
such stock dividends and distributions and any shares into which or for which
any or all of the Shares may be changed or exchanged.
 
  9. Termination. Except as provided in Section 3 hereof, the covenants and
agreements contained herein with respect to the Shares shall terminate upon
the termination of the Merger Agreement in accordance with its terms;
provided, however, that during the term of the Stock Option, the Stockholders
shall ensure that the representations and warranties set forth in Section 5
continue to be true and correct.
 
  10. Miscellaneous.
 
  (a) Entire Agreement. This Agreement constitutes the entire agreement
between the parties with respect to the subject matter hereof and supersedes
all other prior agreements and understandings, both written and oral, between
the parties with respect to the subject matter hereof.
 
  (b) Binding Agreement. This Agreement and the obligations hereunder shall
attach to the Shares and shall be binding upon any person or entity to which
legal or beneficial ownership of such Shares shall pass, whether by operation
of law or otherwise, including, without limitation, a Stockholder's heirs,
guardians, administrators or successors. Notwithstanding any transfer of
Shares, the transferor shall remain liable for the performance of all
obligations of the transferor under this Agreement.
 
  (c) Assignment. This Agreement shall not be assigned by operation of law or
otherwise without the prior written consent of the other parties, provided
that Parent may assign, in its sole discretion, its rights and obligations
hereunder to any direct or indirect wholly owned Subsidiary of Parent, but no
such assignment shall relieve Parent of its obligations hereunder if such
assignee does not perform such obligations.
 
  (d) Amendments, Waivers, Etc. This Agreement may not be amended, changed,
supplemented, waived or otherwise modified or terminated, except upon the
execution and delivery of a written agreement executed by the parties hereto.
 
  (e) Notices. All notices, requests, claims, demands and other communications
hereunder shall be in writing and shall be given (and shall be deemed to have
been duly received if given) by hand delivery or telecopy (with a confirmation
copy sent for next day delivery via courier service, such as Federal Express),
or by any courier service, such as Federal Express, providing proof of
delivery. All communications hereunder shall be delivered to the respective
parties at the following addresses:
 
 
                                      E-5
<PAGE>
 
  If to a Stockholder:
                  to such Stockholder's address set forth on Schedule I hereto
 
  If to a Parent or
  the Purchaser:  Logica Inc.
                  32 Hartwell Avenue
                  Lexington, MA 02421
                  Attention: Corey Torrence, President
                  Telephone No.: (617) 476-8000
                  Telecopy No.: (617) 476-8010
 
  copy to:        Goodwin, Procter & Hoar llp
                  Exchange Place
                  Boston, MA 02109
                  Attention: Joseph L. Johnson III, Esq.
                  Telephone No.:  (617) 570-1000
                  Telecopy No.: (617) 523-1231
 
or to such other address as the person to whom notice is given may have
previously furnished to the others in writing in the manner set forth above.
 
  (f) Severability. Whenever possible, each provision or portion of any
provision of this Agreement will be interpreted in such manner as to be
effective and valid under applicable law but if any provision or portion of
any provision of this Agreement is held to be invalid, illegal or
unenforceable in any respect under any applicable law or rule in any
jurisdiction, such invalidity, illegality or unenforceability will not affect
any other provision or portion of any provision in such jurisdiction, and this
Agreement will be reformed, construed and enforced in such jurisdiction as if
such invalid, illegal or unenforceable provision or portion of any provision
had never been contained herein.
 
  (g) Specific Performance. Each of the parties hereto recognizes and
acknowledges that a breach by it of any covenants or agreements contained in
this Agreement will cause the other party to sustain damages for which it
would not have an adequate remedy at law for money damages, and therefore in
the event of any such breach the aggrieved party shall be entitled to the
remedy of specific performance of such covenants and agreements and injunctive
and other equitable relief in addition to any other remedy to which it may be
entitled, at law or in equity (subject to Section 4(f) hereof).
 
  (h) Remedies Cumulative. All rights, powers and remedies provided under this
Agreement or otherwise available in respect hereof at law or in equity shall
be cumulative and not alternative or exclusive, and the exercise of any
thereof by any party shall not preclude the simultaneous or later exercise of
any other such right, power or remedy by such party (subject to Section 4(f)
hereof).
 
  (i) No Waiver. The failure of any party hereto to exercise any right, power
or remedy provided under this Agreement or otherwise available in respect
hereof at law or in equity, or to insist upon compliance by any other party
hereto with its obligations hereunder, and any custom or practice of the
parties at variance with the terms hereof, shall not constitute a waiver by
such party of its right to exercise any such or other right, power or remedy
or to demand such compliance.
 
  (j) No Third Party Beneficiaries. Subject to the provisions of Section
10(c), this Agreement is not intended to be for the benefit of, and shall not
be enforceable by, any person or entity who or which is not a party hereto.
 
  (k) Choice of Law/Consent to Jurisdiction. 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. Each party hereby irrevocably and
unconditionally consents to submit to the exclusive jurisdiction of the courts
of the State of Delaware and of the United States of America located in the
State of Delaware (the "Delaware Courts") for
 
                                      E-6
<PAGE>
 
any litigation arising out of or relating to this Agreement and the
Transactions (and agrees not to commence any litigation relating thereto
except in such courts), waives any objection to the laying of venue of any
such litigation in the Delaware Courts and agrees not to plead or claim in any
Delaware Court that such litigation brought therein has been brought in any
inconvenient forum. Each of the parties hereto agrees, (a) to the extent such
party is not otherwise subject to service of process in the State of Delaware,
to appoint and maintain an agent in the State of Delaware as such party's
agent for acceptance of legal process, and (b) that service of process may
also be made on such party by prepaid certified mail with a proof of mailing
receipt validated by the United States Postal Service constituting evidence of
valid service. Service made pursuant to (a) or (b) above shall have the same
legal force and effect as if served upon such party personally within the
State of Delaware. For purposes of implementing the parties' agreement to
appoint and maintain an agent for service of process in the State of Delaware,
each such party does hereby appoint The Corporation Trust Company, 1209 Orange
Street, Wilmington, New Castle County, Delaware 19801, as such agent.
 
  (l) Descriptive Headings. The descriptive headings used herein are inserted
for convenience of reference only and are not intended to be part of or to
affect the meaning or interpretation of this Agreement.
 
  (m) Counterparts. This Agreement may be executed in counterparts, each of
which shall be deemed to be an original, but all of which, taken together,
shall constitute one and the same Agreement.
 
  (n) No Agreement Until Executed. Irrespective of negotiations among the
parties or the exchanging of drafts of this Agreement, this Agreement shall
not constitute or be deemed to evidence a contract, agreement, arrangement or
understanding among the parties hereto unless and until (i) the Board of
Directors of the Company has approved, for purposes of Section 203 of the
Delaware General Corporation Law and any applicable provision of the Company's
certificate of incorporation, the terms of this Agreement, including, without
limitation, (x) the Stock Option and (y) the irrevocable proxy and voting
provisions set forth in Section 4 of this Agreement, and (ii) this Agreement
is executed by parties hereto.
 
                                      E-7
<PAGE>
 
  In Witness Whereof, the undersigned have caused this Agreement to be duly
executed as of the day and year first above written.
 
                                          Logica Inc.
 
                                                    /s/ Corey Torrence
                                          By: _________________________________
                                            Name: Corey Torrence
                                            Title:President and Chief
                                            Executive Officer
 
                                          Logica Acquisition Corp.
 
                                                    /s/ Corey Torrence
                                          By: _________________________________
                                            Name: Corey Torrence
                                            Title:President
 
                                          Carnegie Group, Inc.
 
                                                   /s/ Dennis Yablonsky
                                          By: _________________________________
                                            Name: Dennis Yablonsky
                                            Title:President and Chief
                                            Executive Officer
 
                                                   /s/ John W. Manzetti
                                          By: _________________________________
                                            Name: John W. Manzetti
 
                                      E-8
<PAGE>
 
                                   SCHEDULE I
 
<TABLE>
<CAPTION>
                                                              NUMBER OF SHARES
                                                                AND OPTIONS
NAME AND ADDRESS OF STOCKHOLDER                              BENEFICIALLY OWNED
- -------------------------------                              ------------------
<S>                                                          <C>
John W. Manzetti............................................       40,000
[address]
</TABLE>
 
                                      E-9

<PAGE>
 
                                                                    EXHIBIT 99.1



Logica to Acquire Carnegie Group for $35 Million; Logica Looks to Expand its
Presence in the Growing Global Customer Care and Contact Arena

LEXINGTON, Mass., Oct. 1, /PRNewswire/ -- Logica plc today announced that it has
entered into a definitive agreement to acquire Nasdaq-listed Carnegie Group,
Inc., (Nasdaq: CGIX), a provider of solutions in the areas of customer
management and sophisticated decision support systems. Under the terms of the
agreement, which has been unanimously approved by the board of directors of both
companies, Logica will acquire Carnegie Group for $5.00 per common share,
payable in cash, for a total consideration of approximately $35 million.

The proposed acquisition is expected to significantly enhance Logica's ability
to provide leading edge customer contact and customer care solutions and
advanced decision support solutions to its financial services,
telecommunications, energy and utilities, and automotive clients globally.

Founded in 1983 at Carnegie Mellon University, Carnegie Group has been
successful in penetrating the US marketplace for customer relationship
management solutions. Headquartered in Pittsburgh, Pennsylvania and with 300
staff in seven US locations, Carnegie Group currently generates its largest
proportion of revenues from telecommunications operators. Key customers include
USWest Communications, Bell South Telecommunications, and First USA Bank.

Carnegie Group's board of directors has agreed to recommend acceptance of the
offer to its shareholders and will be accepting the offer in respect of their
own shareholding. Full details of the tender offer will be issued to Carnegie
Group's shareholders on or before October 8, 1998. Following the issue of the
tender offer document, Carnegie Group's shareholders will have a minimum of 20
business days to tender their shares. Any shares not purchased in the offer will
be acquired for the same price, in cash pursuant to a second-step merger. The
offer will be conditional upon Logica achieving over 50% acceptance and other
customary closing conditions. Shareholders and directors holding approximately
18% of the outstanding shares have agreed to tender their shares to the deal.

"This acquisition will create excellent synergy and accelerate growth
opportunities for Logica and Carnegie Group," comments Corey V. Torrence,
President and CEO of Logica Inc. "Together, we are well positioned to meet the
explosive global demand for customer care solutions."

"This is a very exciting opportunity for Carnegie Group," states Dennis
Yablonsky, CEO of Carnegie Group. "Becoming part of a successful worldwide
company like Logica, with its excellent pedigree and strong technical heritage,
is good news for our customers, our staff, and our shareholders."
<PAGE>
 
Upon completion of the acquisition, Carnegie Group will form a separate customer
contact division within Logica Inc., reporting directly to Mr. Torrence. The new
division will be known as Logica Carnegie Group and will be run by Mr.
Yablonsky, from its existing headquarters in Pittsburgh, PA.

"We have been seeking to expand our business in North America and are pleased to
have attracted an exciting company specializing in a high growth segment of our
market," said Mario Anid, Logica's corporate development director.

About the transaction

Carnegie Group employs 300 full-time staff in seven locations in the US. The new
company will increase Logica's US headcount by 60% and will strengthen its focus
on customer contact and customer care solutions. The acquisition is a further
step in Logica's growth strategy. It is envisaged that the acquisition will have
no material effect on Logica's earnings in 1998/99 (before goodwill
amortization) and that it will be earnings-enhancing in 1999/2000. About
Carnegie Group Carnegie Group, Inc. is based in Pittsburgh, Pennsylvania and has
demonstrated success in penetrating the US marketplace for customer relationship
management and advanced decision support solutions.

For the year ended 31 December 1997, Carnegie Group earned revenues of $29.4
million, with profits before tax of $0.2 million. Net assets on December 31,
1997 were $24.1 million.

For the half-year to 30 June 1998, Carnegie Group earned revenues of $16.2
million with profits before tax and acquisition related goodwill write-off of
$638,000.  Net assets were $22.0 million.

About Logica

Logica is a leading provider of business engineered, content-rich solutions for
the Energy & Utilities, Telecommunications, Financial Services and Automotive
markets. The company's expertise is in systems integration, consulting, products
and core process out-tasking/applications management. In collaboration with its
partners around the world, Logica helps its clients achieve sustainable,
profitable growth, by maximizing the value of their core assets. Logica's
success is driven by its people, and is delivered through focused industry,
process and application expertise enabled by technology. The company offers its
products and services through innovative, flexible business partnerships and
measures its success by the impact it has on its clients' results.

With its North American headquarters in Lexington, MA, Logica has 550 staff
based in North America and offices in Dearborn, Fort Lauderdale, Houston, New
York, Orlando, San Francisco, Toronto and Williamsburg. Logica plc was founded
in London in 1969 and now has offices in 23 countries and 6,500 employees
worldwide. Today Logica is a leading international computer consultancy, systems
integration and software company with clients across diverse markets including
finance, telecommunications, energy and utilities, industry, government,
defense, transport and space. For the fiscal year ending June 1998, Logica's
revenue was $790 million ((Pounds) 473 million).

    Logica's home page can be found at http://www.logica.com.
<PAGE>
 
    NOTE:  Statements which are not historical facts are forward-looking
statements made pursuant to the safe harbor provisions of the Private Securities
Litigation Reform Act of 1995. Such forward-looking statements involve risks and
uncertainties that could cause actual results to differ materially from
anticipated results, including the assumption that the combination is
consummated. Neither Logica nor Carnegie Group undertakes any obligation to
publicly release any revisions to forward-looking statements to reflect events
or circumstances or changes in expectations after the date of this press release
or the occurrence of anticipated events.

/CONTACT: Eithne Egan of Logica plc, 617-476-8000,
or [email protected]; or Joe Orlando of IMEDIA, Inc.,
973-267-8500, or [email protected], for Logica plc/

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