ASPECT DEVELOPMENT INC
8-K, 1997-12-10
PREPACKAGED SOFTWARE
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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):  NOVEMBER 25, 1997

                            _____________________ 

                           ASPECT DEVELOPMENT, INC.
            (Exact name of registrant as specified in its charter)


        DELAWARE                     0-20749                    25-1622857
(State or other jurisdiction   (Commission File Number)       (I.R.S. Employer
of incorporation or                                          Identification No.)
organization)                           



         1300 CHARLESTON ROAD                                    94043
      MOUNTAIN VIEW, CALIFORNIA
(Address of principal executive offices)                       (Zip Code)



      Registrant's telephone number, including area code:  (650) 428-2700

                                       1
<PAGE>
 
ITEM 2.  ACQUISITION OR DISPOSITION OF ASSETS

     On November 25, 1997, pursuant to an Agreement and Plan of Reorganization
dated as of November 18, 1997, by and among Aspect Development, Inc., a Delaware
corporation ("Aspect"), Hawaii Acquisition Corporation, a Delaware corporation
and wholly-owned subsidiary of Aspect ("Sub"), and CADIS, Inc., a Delaware
corporation ("CADIS"), as amended by the Amendment to Agreement and Plan of
Reorganization dated as of November 21, 1997 (the "Reorganization Agreement"),
Sub was merged with and into CADIS, and CADIS became a wholly-owned subsidiary
of Aspect (the "Merger").  Under the terms of the Reorganization Agreement, each
share of common stock of CADIS ("CADIS Common Stock") was converted into the
right to receive .081539 shares of common stock of Aspect ("Aspect Common
Stock") and each share of preferred stock of CADIS ("CADIS Preferred Stock") was
converted into the right to received Aspect Common Stock at a rate of .092223
shares of Aspect Common Stock per share of Series B Preferred Stock, .099702
shares of Aspect Common Stock per share of Series C Preferred Stock, .126411
shares of Aspect Common Stock per share of Series D Preferred Stock, .150162
shares of Aspect Common Stock per share of Series E Preferred Stock, .180179
shares of Aspect Common Stock per share of Series F Preferred Stock and .021368
of a share of Aspect Common Stock per share of Redeemable Preferred Stock.
Also, under the terms of the Reorganization Agreement, each outstanding option
to acquire shares of CADIS Common Stock ("CADIS Option") was assumed by Aspect
and converted into an option to acquire .081539 shares of Aspect Common Stock
for each share of CADIS Common Stock underlying such CADIS Option.

     In the aggregate, as a result of the Merger, Aspect issued 1,381,230 shares
of Aspect Common Stock in exchange for the shares of CADIS Common Stock that
were outstanding on November 25, 1997, and the CADIS Options that were
outstanding on such date were converted into options to purchase an aggregate of
118,770 shares of Aspect Common Stock (the "Aspect Options").  The number of
shares issued in the Merger was arrived at by arm's length negotiations.  The
Merger was accounted for as a pooling of interests.  Under the terms of the
Reorganization Agreement, 7.5% of the shares of Aspect Common Stock issued or
issuable pursuant to the Merger were deposited in escrow as security for
indemnification claims that Aspect, its affiliates, and their officers,
directors, employees and attorneys (collectively, the "Aspect Group") may bring
for breaches of any representations, warranties or covenants of CADIS set forth
in the Reorganization Agreement.  Claims against this escrow represent the sole
recourse for any claim by any member of the Aspect Group against CADIS in
connection with the Merger except in the event of fraud or willful
misrepresentation.  The indemnification period ends, and the shares in the
escrow account will be distributed to the shareholders, 12 months following the
date the Merger became effective.

     The Aspect Common Stock was issued under the exemption from registration
provided by Rule 506 of Regulation D promulgated under the Securities Act of
1933.  Under the terms of the Reorganization Agreement, the Company is required
to prepare and file with the Securities and Exchange Commission (the
"Commission") a registration statement covering the resale of the Aspect Common
Stock issued in the Merger.  In addition, Aspect will register with the
Commission the shares of Aspect Common Stock issuable upon exercise of the
Aspect Options.

                                       2
<PAGE>
 
ITEM 7.      FINANCIAL STATEMENTS, PRO FORMA FINANCIAL INFORMATION AND EXHIBITS.

             (a)  Pursuant to Item 7(a)(4) of Form 8-K, the financial statements
                  of CADIS required pursuant to Rule 3-05 of Regulation S-X will
                  be filed as soon as practicable, but no later than 60 days
                  from the date this form was filed.

             (b)  Pursuant to Item 7(a)(4) of Form 8-K, the pro forma financial
                  information of CADIS required pursuant to Article 11 of
                  Regulation S-X will be filed as soon as practicable, but no
                  later than 60 days from the date this form was filed. 

             (c)  Exhibits
                  --------

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

                  2.1(1)       Agreement and Plan of Reorganization dated
                               November 18, 1997 among Aspect Development, Inc.,
                               Hawaii Acquisition Corporation and CADIS, Inc.

                  2.2          Amendment to Agreement and Plan of Reorganization
                               dated November 21, 1997 among Aspect Development,
                               Inc., Hawaii Acquisition Corporation and CADIS,
                               Inc.

                  99.1         Press Release dated November 18, 1997 announcing
                               the execution of the Reorganization Agreement.

                  99.2         Press Release dated December 1, 1997 announcing
                               the effectiveness of the Merger.

 

(1)  Other Exhibits to the Reorganization Agreement not filed herewith are
     identified in the Reorganization Agreement.  The registrant will
     supplementally furnish any omitted Exhibit to the Commission upon request.

                                       3
<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.

                                        Aspect Development, Inc.


December 9, 1997                        By: /s/ David S. Dury
                                            --------------------------------
                                            David S. Dury
                                            Vice President and Chief Financial
                                            Officer

                                       4
<PAGE>
 
                                 INDEX TO EXHIBITS


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

2.1(1)    Agreement and Plan of Reorganization dated November 18, 1997 among
          Aspect Development, Inc., Hawaii Acquisition Corporation and CADIS,
          Inc.

2.2       Amendment to Agreement and Plan of Reorganization dated November 21,
          1997 among Aspect Development, Inc., Hawaii Acquisition Corporation
          and CADIS, Inc.

99.1      Press Release dated November 18, 1997 announcing the execution of the
          Reorganization Agreement.

99.2      Press Release dated December 1, 1997 announcing the effectiveness of
          the Merger.



(1)  Other Exhibits to the Reorganization Agreement not filed herewith are
     identified in the Reorganization Agreement.  The registrant will
     supplementally furnish any omitted Exhibit to the Commission upon request.

                                       5

<PAGE>
 
                                                                     Exhibit 2.1
- --------------------------------------------------------------------------------



                      AGREEMENT AND PLAN OF REORGANIZATION



                                     among



                           ASPECT DEVELOPMENT, INC.,
                             a Delaware corporation
                                   ("Aspect")


                        HAWAII ACQUISITION CORPORATION,
                    a Delaware corporation and wholly-owned
                             subsidiary of Aspect,



                                      and



                                  CADIS, INC.,
                             a Delaware corporation



                            Dated November 18, 1997



- --------------------------------------------------------------------------------
<PAGE>
 
                               TABLE OF CONTENTS
                               ------------------
                                        

                                                                            Page
                                                                            ----
<TABLE>
<S>                  <C>                                                    <C>
ARTICLE I  THE MERGER.....................................................   1
     Section 1.1     Effective Time of the Merger.........................   1
     Section 1.2     Closing..............................................   2
     Section 1.3     Effects of the Merger................................   2
     Section 1.4     Directors and Officers...............................   2

ARTICLE II  CONVERSION OF SECURITIES......................................   3
     Section 2.1     Conversion of Capital Stock..........................   3
     Section 2.2     Exchange of Certificates.............................   3
     Section 2.3     Escrow...............................................   5
     Section 2.4     Appraisal Rights.....................................   6

ARTICLE III  REPRESENTATIONS AND WARRANTIES OF ALASKA.....................   6
     Section 3.1     Organization, Standing and Power.....................   7
     Section 3.2     Alaska Capital Structure.............................   7
     Section 3.3     Authority; Required Filings and Consents.............   8
     Section 3.4     Financial Statements.................................   9
     Section 3.5     Absence of Undisclosed Liabilities...................   9
     Section 3.7     Absence of Certain Changes or Events.................   9
     Section 3.8     Taxes................................................  11
     Section 3.9     Tangible Assets and Real Property....................  11
     Section 3.10    Intellectual Property................................  12
     Section 3.11    Bank Accounts........................................  13
     Section 3.12    Contracts............................................  14
     Section 3.13    Labor Difficulties...................................  15
     Section 3.14    Trade Regulation.....................................  15
     Section 3.15    Environmental Matters................................  15
     Section 3.16    Employee Benefit Plans...............................  16
     Section 3.17    Compliance with Laws.................................  16
     Section 3.18    Employees and Consultants............................  17
     Section 3.19    Litigation...........................................  17
     Section 3.20    Restrictions on Business Activities..................  17
     Section 3.21    Governmental Authorization...........................  17
     Section 3.22    Insurance............................................  17
     Section 3.23    Pooling of Interests.................................  17
     Section 3.24    Interested Party Transactions........................  17
     Section 3.25    No Existing Discussions..............................  18
     Section 3.26    Real Property Holding Corporation....................  18
     Section 3.27    Corporate Documents..................................  18

ARTICLE IV  REPRESENTATIONS AND WARRANTIES OF HAWAII AND SUB..............  19
     Section 4.1     Organization.........................................  19
     Section 4.2     Hawaii Capital Structure.............................  19
</TABLE>

                                       i
<PAGE>
<TABLE> 
<CAPTION> 
 
                               TABLE OF CONTENTS
                               ------------------
                                  (continued)

                                                                                  Page
                                                                                  ----

<S>                  <C>                                                    <C>
     Section 4.3     Authority; No Conflict; Required Filings and Consents........  20
     Section 4.4     SEC Filings; Financial Statements............................  21
     Section 4.5     Absence of Certain Changes or Events.........................  22
     Section 4.8     Pooling of Interests.........................................  22
     Section 4.10    Interim Operations of Sub....................................  22

ARTICLE V  CONDUCT OF BUSINESS....................................................  22
     Section 5.1     Covenants of Alaska..........................................  22
     Section 5.2     Covenants of Hawaii..........................................  24
     Section 5.3     Cooperation..................................................  25

ARTICLE VI  ADDITIONAL AGREEMENTS.................................................  25
     Section 6.1     No Solicitation..............................................  25
     Section 6.2     Registration Rights..........................................  25
     Section 6.3     Consents.....................................................  29
     Section 6.4     Current Nasdaq Quotation.....................................  29
     Section 6.5     Access to Information........................................  29
     Section 6.7     Legal Conditions to Merger...................................  30
     Section 6.8     Public Disclosure............................................  30
     Section 6.9     Tax-Free Reorganization......................................  30
     Section 6.11    Affiliate Agreements.........................................  30
     Section 6.10    Pooling Accounting...........................................  30
     Section 6.13    Stock Options................................................  31
     Section 6.14    Employee Stock Purchase Plan.................................  32
     Section 6.15    Brokers or Finders...........................................  32
     Section 6.16    Additional Agreements; Reasonable Efforts....................  32
     Section 6.17    Expenses.....................................................  32

ARTICLE VII  CONDITIONS TO MERGER.................................................  33
     Section 7.1     Conditions to Each Party's Obligation to Effect the Merger...  33
     Section 7.2     Additional Conditions to Obligations of Hawaii and Sub.......  34
     Section 7.3     Additional Conditions to Obligations of Alaska...............  36

ARTICLE VIII  TERMINATION AND AMENDMENT...........................................  36
     Section 8.1     Termination..................................................  36
     Section 8.2     Effect of Termination........................................  37
     Section 8.3     Amendment....................................................  37
     Section 8.4     Extension; Waiver............................................  37

ARTICLE IX  ESCROW AND INDEMNIFICATION............................................  38
     Section 9.1     Survival of Representations and Warranties...................  38
     Section 9.2     Indemnification by Alaska Stockholders.......................  38
     Section 9.3     Procedures for Indemnification...............................  39
     Section 9.4     Defense of Third Party Claims................................  39
     Section 9.6     Manner of Indemnification....................................  40
</TABLE>

                                       ii
<PAGE>
<TABLE> 
<CAPTION> 
 
                               TABLE OF CONTENTS
                               ------------------
                                  (continued)        

                                                                                  Page
                                                                                  ----
<S>                  <C>                                                    <C>
     Section 9.7     Stockholder Representative...................................  40

ARTICLE X  GENERAL PROVISIONS.....................................................  41
     Section 10.1    Notices......................................................  41
     Section 10.2    Interpretation...............................................  43
     Section 10.3    Counterparts.................................................  43
     Section 10.4    Severability.................................................  43
     Section 10.5    Entire Agreement.............................................  43
     Section 10.6    Governing Law................................................  43
     Section 10.7    Assignment...................................................  43
     Section 10.8    Third Party Beneficiary......................................  43
</TABLE>

 
EXHIBITS
 
Exhibit A -  Escrow Agreement
Exhibit B -  Voting Agreement
Exhibit C -  Form of Noncompetition Agreement
Exhibit D -  Form of Opinion of Counsel to Cadis
Exhibit E -  Form of Stockholder Agreement

                                      iii
<PAGE>
 
<TABLE>
<CAPTION>

                            TABLE OF DEFINED TERMS
                            ----------------------

                                                      Section
                                                      -------
<S>                                             <C>
Acquisition Proposal...........................         6.1(a)
Affiliate......................................         6.10
Affiliate Agreement............................         6.11
Aspect.........................................   Introduction
Aspect Balance Sheet...........................         4.4(b)
Aspect Common Stock............................         2.1(b)
Aspect Disclosure Schedule.....................     Article IV
Aspect Group...................................         9.2(a)
Aspect Losses..................................         9.2(a)
Aspect Option Plans............................         4.2(a)
Aspect Preferred Stock.........................         4.2(a)
Aspect Purchase Plan...........................         4.2(a)
Aspect SEC Reports.............................         4.4(a)
Assumed Option.................................         6.12(a)
Cadis..........................................  Introduction
Cadis Authorizations...........................         3.20
Cadis Balance Sheet............................         3.5
Cadis Capital Stock............................         2.1(b)
Cadis Common Stock.............................         2.1(b)
Cadis Components...............................         3.9(e)
Cadis Disclosure Schedule......................   Article III
Cadis Employee Plan............................         3.15(a)
Cadis Financial Statements.....................         3.4
Cadis Intellectual Property Rights.............         3.9(a)
Cadis Option Plan..............................         2.1(c)
Cadis Options..................................         2.1(c)
Cadis Preferred Stock..........................         2.1(b)
Cadis Product..................................         3.9(b)
Certificate....................................         2.2(a)
Certificate of Merger..........................         1.1
Closing........................................         1.2
Closing Date...................................         1.2
Code...........................................      Recitals
Confidentiality Agreement......................         6.5
Constituent Corporations.......................         1.3(a)
De Minimis Claim...............................         9.2(b)
- ----------
Dissenting Shares..............................         2.4
Dissenting Stockholder.........................         2.4
Effective Time.................................         1.1
Environmental Permits..........................         3.14(c)
Escrow.........................................         2.3
Escrow Agent...................................         2.3
</TABLE>
                                      iv
<PAGE>
 
<TABLE>
<CAPTION>

                            TABLE OF DEFINED TERMS
                            ----------------------
                                  (continued)

                                                      Section
                                                      -------
<S>                                             <C>
Escrow Agreement...............................         2.3
Escrow Shares..................................         2.3
Exchange Act...................................         4.4(a)
Exchange Agent.................................         2.2(a)
Exchange Fund..................................         2.2(a)
Floor..........................................         9.2(b)
GAAP...........................................         3.4
GCL............................................         1.1
Governmental Entity............................         3.3(c)
Hazardous Material.............................         3.14(a)
Hazardous Materials Activities.................         3.14(b)
Holder.........................................         6.2(a)
incentive stock options........................         6.12(a)
Indemnification Claim..........................         9.3(b)
Indemnified Party..............................         6.2(h)
Indemnifying Party.............................         6.2(h)
Indemnitee.....................................         9.3(a)
Information Statement..........................         3.27
Licensed Intellectual Property.................         3.9(b)
Material Adverse Effect........................   Article III
Material Tangible Assets.......................         3.8(a)
Merger.........................................      Recitals
NNM............................................         2.2(e)
Nonaccredited Cadis Stockholders...............         7.1(g)
Noncompetition Agreements......................         7.3(g)
Other Filings..................................         6.6
Registrable Securities.........................         6.2(a)
Registration Statement.........................         6.2(a)
Returns........................................         3.7(b)
Rule 145.......................................         6.10
SEC............................................         4.4(a)
Securities Act.................................         4.4(a)
Stockholder Agreement..........................         7.2(k)
Stockholder Representative.....................         9.6
Sub............................................  Introduction
Subsidiary.....................................   Article III
Surviving Corporation..........................         1.3(a)
Suspension Right...............................         6.2(d)
Tax............................................         3.7(a)
Termination Date...............................         9.1
</TABLE>


                                       v

<PAGE>
 
<TABLE>
<CAPTION>

                            TABLE OF DEFINED TERMS
                            ----------------------

                                                      Section
                                                      -------
<S>                                             <C>
Third Party Claim..............................         9.4
Transaction Documents..........................         3.3(a)
</TABLE>


                                       vi

<PAGE>
 
                      AGREEMENT AND PLAN OF REORGANIZATION

     THIS AGREEMENT AND PLAN OF REORGANIZATION (the "Agreement") is made and
entered into as of November 18, 1997, by and among Aspect Development, inc., a
Delaware corporation Hawaii acquisition Corporation, ("Aspect"), a Delaware
corporation and wholly-owned subsidiary of Aspect ("Sub"), Cadis, Inc., a
Delaware corporation ("Cadis") and, solely for the purposes set forth in Section
6.2(d) and Article IX hereof, Carl D. Carman, an individual.

                                    RECITALS
                                    --------

     WHEREAS, the Boards of Directors of Aspect, Sub and Cadis deem it advisable
and in the best interests of each corporation and its respective stockholders
that Aspect and Cadis combine in order to advance the long-term business
interests of Aspect and Cadis;

     WHEREAS, the combination of Aspect and Cadis shall be effected by the terms
of this Agreement through a transaction (the "Merger") in which Sub will merge
with and into Cadis, Cadis will become a wholly-owned subsidiary of Aspect and
the stockholders of Cadis will become stockholders of Aspect;

     WHEREAS, for federal income tax purposes, it is intended that the Merger
shall qualify as a reorganization within the meaning of Section 368(a) of the
Internal Revenue Code of 1986, as amended (the "Code"); and

     WHEREAS, for accounting purposes, it is intended that the Merger shall be
accounted for as a pooling of interests.

                                   AGREEMENT
                                   ---------

     NOW, THEREFORE, in consideration of the foregoing and the respective
representations, warranties, covenants and agreements set forth below, the
parties agree as follows:

 

                                   ARTICLE I


                                 THE MERGER

        Section 1.1 Effective Time of the Merger. Subject to the provisions
                    ----------------------------  
of this Agreement, a Certificate of Merger (the "Certificate of Merger") in such
form as is required by the relevant provisions of the Delaware General
Corporation Law (the "GCL") shall be duly prepared and executed and shall be
delivered to the Secretary of State of the State of Delaware for filing as soon
as practicable on or after the Closing Date (as defined in Section 1.2). The
Merger shall become effective upon the filing of the Certificate of Merger with
the Secretary of State of the State of Delaware (the "Effective Time").

                                       1
<PAGE>
 
        Section 1.2 Closing. The closing of the Merger (the "Closing") will take
                    ------- 
place at 10:00 a.m., Pacific Time, on a date to be specified by Aspect and Cadis
(the "Closing Date"), which shall be no later than the third business day after
satisfaction of the latest to occur of the conditions set forth in Sections 7.1,
7.2(b) (other than the delivery of the officers' certificate referred to
therein) and 7.3(b) (other than the delivery of the officers' certificate
referred to therein), provided that the other closing conditions set forth in
Article VII have been met or waived as provided in Article VII at or prior to
the Closing, at the offices of Gray Cary Ware & Freidenrich, 400 Hamilton
Avenue, Palo Alto, CA 94301 unless another date or place is agreed to in writing
by Aspect and Cadis.

        Section 1.3 Effects of the Merger.
                    ---------------------     

                (a)  At the Effective Time (i) the separate existence of Sub
shall cease, and Sub shall be merged with and into Cadis (the "Surviving
Corporation"), (ii) the Certificate of Incorporation of Sub shall be the
Certificate of Incorporation of the Surviving Corporation, and (iii) the Bylaws
of Sub as in effect immediately prior to the Effective Time shall be the Bylaws
of the Surviving Corporation. (Sub and Cadis are sometimes referred to herein as
the "Constituent Corporations".")

                (b)  At and after the Effective Time, the Surviving Corporation
shall possess all the rights, privileges, powers and franchises of a public as
well as of a private nature, and be subject to all the restrictions,
disabilities and duties of each of the Constituent Corporations; and all and
singular rights, privileges, powers and franchises of each of the Constituent
Corporations, and all property, real, personal and mixed, and all debts due to
either of the Constituent Corporations on whatever account, as well as for stock
subscriptions and all other things in action or belonging to each of the
Constituent Corporations, shall be vested in the Surviving Corporation, and all
property, rights, privileges, powers and franchises, and all and every other
interest shall be thereafter as effectually the property of the Surviving
Corporation as they were of the Constituent Corporations, and the title to any
real estate vested by deed or otherwise, in either of the Constituent
Corporations, shall not revert or be in any way impaired but all rights of
creditors and all liens upon any property of either of the Constituent
Corporations shall be preserved unimpaired, and all debts, liabilities and
duties of the Constituent Corporations shall thereafter attach to the Surviving
Corporation, and may be enforced against it to the same extent as if such debts
and liabilities had been incurred by it.

        Section 1.4    Directors and Officers. The directors and officers of Sub
                       ---------------------- 
immediately prior to the Effective Time shall be the initial directors and
officers of the Surviving Corporation, each of whom will hold office in
accordance with the Certificate of Incorporation and Bylaws of the Surviving
Corporation, in each case until their respective successors are duly elected or
appointed.

                                       2
<PAGE>
 
                                   ARTICLE II


                          CONVERSION OF SECURITIES

        Section 2.1 Conversion of Capital Stock. As of the Effective Time, by
                    ---------------------------
virtue of the Merger and without any action on the part of the holder of any
shares of capital stock of Cadis or capital stock of Sub:

                (a)  Capital Stock of Sub. Each issued and outstanding share of
                     --------------------
the capital stock of Sub shall be converted into and become one fully paid and
nonassessable share of Common Stock, $.001 par value, of the Surviving
Corporation.

                (b)  Exchange Ratio for Cadis Capital Stock. Subject to Section
                     --------------------------------------
2.2, (i) each issued and outstanding share of Common Stock, $.01 par value, of
Cadis ("Cadis Common Stock"), other than Dissenting Shares (as defined in
Section 2.4), shall be converted into the right to receive .081539 fully paid
and nonassessable shares of Common Stock, $.001 par value, of Aspect ("Aspect
Common Stock") and (ii) each issued and outstanding share of Preferred Stock,
$.01 par value, of Cadis ("Cadis Preferred Stock"), other than Dissenting
Shares, shall be converted into the right to receive fully paid and
nonassessable shares of Aspect Common Stock at the rate of .092223 shares of
Aspect Common Stock per share of Series B Preferred Stock, .099702 shares of
Aspect Common Stock per share of Series C Preferred Stock, .126411 shares of
Aspect Common Stock per share of Series D Preferred Stock, .150162 shares of
Aspect Common Stock per share of Series E Preferred Stock, .180179 shares of
Aspect Common Stock per share of Series F Preferred Stock and .021368 shares of
Aspect Common Stock per share of Redeemable Preferred Stock of Cadis, each of
which amounts shall be subject to adjustment to reflect any stock split or stock
dividend effected between the date of this Agreement and the Effective Time.
All such shares of Cadis Common Stock and Cadis Preferred Stock (each "Cadis
Capital Stock"), when so converted, shall no longer be outstanding and shall
automatically be canceled and retired and shall cease to exist, and each holder
of a certificate representing any such shares shall cease to have any rights
with respect thereto, except the right to receive the shares of Aspect Common
Stock and any cash in lieu of fractional shares of Aspect Common Stock to be
issued or paid in consideration therefor upon the surrender of such certificate
in accordance with this Article II.

                (c)  Cadis Stock Options. At the Effective Time, all then
                     -------------------
outstanding options to purchase Cadis Common Stock (the "Cadis Options")
issued under Cadis's 1991 Stock Option Plan (the "Cadis Option Plan") not
exercised as of the Effective Time will be assumed by Aspect in accordance with
Section 6.12.

        Section 2.2 Exchange of Certificates. The procedures for exchanging
                    ------------------------
outstanding shares of Cadis Capital Stock for Aspect Common Stock pursuant to
the Merger are as follows:

                (a)  Exchange Agent. Promptly after Effective Time, Aspect shall
                     --------------
deposit with an exchange agent designated by Aspect (the "Exchange Agent"),
for the benefit of the holders of shares of Cadis Capital Stock, for exchange in
accordance with this Section 2.2, through the Exchange Agent, certificates
representing the shares of Aspect Common Stock issuable pursuant 

                                       3
<PAGE>
 
to Section 2.1 less the Escrow Shares, as defined in Section 2.3 (such shares of
Aspect Common Stock deposited with the Exchange Agent, together with any
dividends or distributions with respect thereto, being hereinafter referred to
as the "Exchange Fund"), in exchange for outstanding shares of Cadis Capital
Stock.

                (b)  Exchange Procedures. As soon as reasonably practicable
                     -------------------
after the Effective Time, the Exchange Agent shall mail to each holder of record
of a certificate or certificates which immediately prior to the Effective Time
represented outstanding shares of Cadis Capital Stock (each a "Certificate,"
and collectively, the "Certificates") whose shares were converted pursuant to
Section 2.1 into the right to receive shares of Aspect Common Stock (i) a letter
of transmittal, which shall specify that delivery shall be effected, and risk of
loss and title to the Certificates shall pass, only upon delivery of the
Certificates to the Exchange Agent and shall be in such form and have such other
provisions as Aspect and Cadis may reasonably specify, and (ii) instructions for
use in effecting the surrender of the Certificates in exchange for certificates
representing shares of Aspect Common Stock. Upon surrender of a Certificate for
cancellation to the Exchange Agent or to such other agent or agents as may be
appointed by Aspect, together with a duly executed letter of transmittal, the
holder of such Certificate shall be entitled to receive in exchange therefor a
certificate representing that number of whole shares of Aspect Common Stock
which such holder has the right to receive pursuant to the provisions of Section
2.1(b) less such holder's pro rata portion of the Escrow Shares, and the
Certificate so surrendered shall immediately be canceled. In the event of a
transfer of ownership of Cadis Capital Stock which is not registered in the
transfer records of Cadis, a certificate representing the proper number of
shares of Aspect Common Stock may be issued to a transferee if the Certificate
representing such Cadis Capital Stock is presented to the Exchange Agent,
accompanied by all documents required to evidence and effect such transfer and
by evidence that any applicable stock transfer taxes have been paid. Until
surrendered as contemplated by this Section 2.2, each Certificate shall be
deemed at any time after the Effective Time to represent only the right to
receive upon such surrender the certificate representing shares of Aspect Common
Stock and cash in lieu of any fractional shares of Aspect Common Stock as
contemplated by this Section 2.2.


                (c)  Distributions with Respect to Unexchanged Shares. No
                     ------------------------------------------------
dividends or other distributions declared or made after the Effective Time with
respect to Aspect Common Stock with a record date after the Effective Time shall
be paid to the holder of any unsurrendered Certificate with respect to the
shares of Aspect Common Stock represented thereby and no cash payment in lieu of
fractional shares shall be paid to any such holder pursuant to subsection (e)
below until the holder of record of such Certificate shall surrender such
Certificate. Subject to the effect of applicable laws, following surrender of
any such Certificate, there shall be paid to the record holder of the
certificates representing whole shares of Aspect Common Stock issued in exchange
therefor, without interest, (i) at the time of such surrender, the amount of any
cash payable in lieu of a fractional share of Aspect Common Stock to which such
holder is entitled pursuant to subsection (e) below and the amount of dividends
or other distributions with a record date after the Effective Time previously
paid with respect to such whole shares of Aspect Common Stock, and (ii) at the
appropriate payment date, the amount of dividends or other distributions with a
record date after the Effective Time but prior to surrender and a payment date
subsequent to surrender payable with respect to such whole shares of Aspect
Common Stock.

                                       4
<PAGE>
 
                (d)  No Further Ownership Rights in Cadis Capital Stock. All
                     --------------------------------------------------
shares of Aspect Common Stock issued upon the surrender for exchange of shares
of Cadis Capital Stock in accordance with the terms hereof (including any cash
paid pursuant to subsection (c) or (e) of this Section 2.2 and the Escrow
Shares) shall be deemed to have been issued in full satisfaction of all rights
pertaining to such shares of Cadis Capital Stock, and there shall be no further
registration of transfers on the stock transfer books of the Surviving
Corporation of the shares of Cadis Capital Stock which were outstanding
immediately prior to the Effective Time. If, after the Effective Time,
Certificates are presented to the Surviving Corporation for any reason, they
shall be canceled and exchanged as provided in this Section 2.2.

                (e)  No Fractional Shares. No certificate or scrip representing
                     --------------------
fractional shares of Aspect Common Stock shall be issued upon the surrender for
exchange of Certificates, and such fractional share interests will not entitle
the owner thereof to vote or to any rights of a stockholder of Aspect.
Notwithstanding any other provision of this Agreement, each holder of shares of
Cadis Capital Stock exchanged pursuant to the Merger who would otherwise have
been entitled to receive a fraction of a share of Aspect Common Stock (after
taking into account all Certificates delivered by such holder) shall receive, in
lieu thereof, cash (without interest) in an amount equal to such fractional part
of a share of Aspect Common Stock multiplied by the average of the last reported
sale prices of Aspect Common Stock, as reported on the Nasdaq National Market
(the "NNM"), on each of the ten (10) trading days immediately preceding the
date of this Agreement.

                (f)  Termination of Exchange Fund. Any portion of the Exchange
                     ----------------------------
Fund which remains undistributed to the stockholders of Cadis for one year after
the Effective Time shall be delivered to Aspect, upon demand, and any
stockholders of Cadis who have not previously complied with this Section 2.2
shall thereafter look only to Aspect for payment of their claim for Aspect
Common Stock, any cash in lieu of fractional shares of Aspect Common Stock, and
any dividends or distributions with respect to Aspect Common Stock.

                (g)  No Liability. Neither Aspect nor Cadis shall be liable to
                     ------------
any holder of shares of Cadis Capital Stock or Aspect Common Stock, as the case
may be, for such shares (or dividends or distributions with respect thereto)
delivered to a public official pursuant to any applicable abandoned property,
escheat or similar law.

                (h)  Lost Certificates: 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, Aspect
shall issue in exchange for such lost, stolen or destroyed Certificate the
shares of Aspect Common Stock issuable in exchange therefor pursuant to the
provisions of Article II of this Agreement, together with cash, if any, in lieu
of fractional shares in accordance with Section 2.2(e) hereof. The Board of
Directors of Aspect may in its discretion and as a condition precedent to the
issuance thereof, require the owner of such lost, stolen or destroyed
Certificate to provide to Aspect an indemnity agreement against any claim that
may be made against Aspect with respect to the Certificate alleged to have been
lost, stolen or destroyed.

        Section 2.3 Escrow. At the Closing, Aspect will deduct from the number
                    ------
of shares of Aspect Common Stock deliverable to the stockholders of Cadis
pursuant to Section 2.1(b) and 

                                       5
<PAGE>
 
will deposit into escrow (the "Escrow") certificates representing seven and one-
half percent (7.5%) of the shares of Aspect Common Stock issuable to the
stockholders of Cadis pursuant to Section 2.1(b) in the Merger on a pro rata
basis (the "Escrow Shares"), or 115,125 shares in the aggregate. The Escrow
Shares shall be held by U.S. Stock Transfer Corporation or such other party as
Aspect and Cadis shall mutually determine (the "Escrow Agent) in accordance with
and subject to the provisions of an Escrow Agreement substantially in the form
of Exhibit A hereto (the "Escrow Agreement"). The Escrow Shares shall be held as
   ---------
collateral for the indemnification obligations of the persons who were
stockholders of Cadis immediately prior to the Effective Time under Article IX
of this Agreement.

        Section 2.4 Appraisal Rights. Any shares of Cadis Capital Stock held
                    ----------------    
by stockholders of Cadis who properly exercise and perfect the dissenters'
appraisal rights set forth in Section 262 of the GCL ("Dissenting Shares")
shall not be converted pursuant to Section 2.1 but shall instead be converted
into the right to receive such consideration as may be determined to be due with
respect to such Dissenting Shares pursuant to the provisions of the GCL. Cadis
shall give Aspect prompt notice of any demand received by Cadis for appraisal of
Cadis Capital Stock, and Aspect shall have the right to control all negotiations
and proceedings with respect to such demand. Cadis agrees that, except with the
prior written consent of Aspect or as required under the GCL, it will not
voluntarily make any payment with respect to, or settle or offer to settle, any
such demand for appraisal. Each holder of Dissenting Shares (a "Dissenting
Stockholder") who, pursuant to the provisions of the GCL, becomes entitled to
payment of the value of shares of Cadis Capital Stock shall receive payment
therefor (but only after the value therefor shall have been agreed upon or
finally determined pursuant to the provisions of the GCL). In the event that any
holder of shares of Cadis Capital Stock fails to make an effective demand for
payment or otherwise loses his or her status as a Dissenting Stockholder, Aspect
shall, as of the later of the Effective Time or the occurrence of such event,
issue and deliver, upon surrender by such Dissenting Stockholder of its
Certificate or Certificates, the shares of Aspect Common Stock and any cash
payment in lieu of fractional shares, in each case without interest thereon, to
which such Dissenting Stockholder would have been entitled under Section 2.1
(less such Dissenting Stockholder's pro rata portion of the Escrow Shares).
 

                                  ARTICLE III


                  REPRESENTATIONS AND WARRANTIES OF CADIS

     In this Agreement, any reference to a "Material Adverse Effect with
respect to any entity or group of entities means a material adverse effect on
the business, assets (including intangible assets), financial condition,
prospects, or results of operations of such entity and its subsidiaries, taken
as a whole.

     In this Agreement, any reference to a party's "knowledge" means such
party's actual knowledge after reasonable inquiry of its directors, officers,
and other management level employees reasonably believed to have knowledge of
such matters.

                                       6
<PAGE>
 
     In this Agreement, any reference to the "prospects" of Cadis or its
business, or to Cadis's business "as proposed to be conducted," means such
prospects or business without taking into account the effects of the Merger or
any changes to Cadis's business that are initiated by Aspect thereafter.

     As used in this Agreement, the word "Subsidiary" means, with respect to
any party, any corporation or other organization, whether incorporated or
unincorporated, of which (i) such party or any other Subsidiary of such party is
a general partner (excluding partnerships, the general partnership interests of
which held by such party or any Subsidiary of such party do not have a majority
of the voting interest in such partnership) or (ii) at least a majority of the
securities or other interests having by their terms ordinary voting power to
elect a majority of the Board of Directors or others performing similar
functions with respect to such corporation or other organization is directly or
indirectly owned or controlled by such party or by any one or more of its
Subsidiaries, or by such party and one or more of its Subsidiaries.

     Except as disclosed in the disclosure schedule provided to Aspect on or
before the date of this Agreement (the "Cadis Disclosure Schedule), Cadis
represents and warrants to Aspect as follows:

        Section 3.1 Organization, Standing and Power. Each of Cadis and its
                    --------------------------------
Subsidiaries is a corporation duly organized, validly existing and in good
standing under the laws of the jurisdiction of its incorporation, has all
requisite corporate power to own, lease and operate its properties and to carry
on its business as currently being conducted and as currently proposed to be
conducted, and is duly qualified to transact business and is in good standing in
each jurisdiction in which the nature of its operations requires such
qualification, except where the failure to so qualify has not and will not have
a Material Adverse Effect on Cadis. Cadis has delivered true and correct copies
of the Certificate of Incorporation and Bylaws of Cadis and each of its
Subsidiaries, each as amended to date, to Aspect. Neither Cadis nor any of its
Subsidiaries is in violation of any of the provisions of its Certificate of
Incorporation, Bylaws or other charter documents. Except as set forth on the
Cadis Disclosure Schedule, Cadis does not directly or indirectly own any equity
or similar interest in, or any interest convertible or exchangeable or
exercisable for any equity or similar interest in, any corporation, partnership,
joint venture or other business association or entity.

        Section 3.2 Cadis Capital Structure.
                    -----------------------     

                (a)  The authorized capital stock of Cadis consists of
15,000,000 shares of Cadis Common Stock and 11,356,579 shares of Cadis Preferred
Stock, of which 2,000,000 shares are designated Series B Preferred Stock,
2,592,593 shares are designated Series C Preferred Stock, 884,615 shares are
designated Series D Preferred Stock, 1,753,666 shares are designated Series E
Preferred Stock, 2,140,000 shares are designated Series F Preferred Stock and
1,985,705 shares are designated Redeemable Preferred Stock. As of the date
hereof, 2,025,100 shares of Cadis Common Stock and 2,000,000 shares of Series B
Preferred Stock, 2,592,593 shares of Series C Preferred Stock, 884,615 shares of
Series D Preferred Stock, 1,753,666 shares of Series E Preferred Stock,
2,140,000 shares of Series F Preferred Stock and 1,985,705 shares of Redeemable
Preferred Stock of Cadis are issued and outstanding and held of
record by those 

                                       7
<PAGE>
 
persons set forth on the Cadis Disclosure Schedule. The Cadis Disclosure
Schedule sets forth the number of shares of Cadis Common Stock into which shares
of Cadis Preferred Stock held by each holder of such Preferred Stock will be
convertible as of the Effective Time. All such outstanding shares of Cadis
Common Stock and Cadis Preferred Stock have been duly authorized, validly
issued, fully paid and are nonassessable, have been issued in compliance with
all applicable federal and state securities laws, and, except as set forth on
the Cadis Disclosure Schedule, are subject to no preemptive rights or rights of
first refusal created by statute, the charter documents of Cadis or any
agreement to which Cadis is a party or by which it is bound. As of the date
hereof, 4,200,000 shares of Cadis Common Stock are reserved for issuance under
the Cadis Option Plan, of which 1,456,603 shares are subject to outstanding
options held by those persons set forth in the Cadis Disclosure Schedule.

                (b)  Except as set forth in this Section 3.2 or the Cadis
Disclosure Schedule, there are (i) no equity securities of any class of Cadis,
or any securities exchangeable into or exercisable for such equity securities,
issued, reserved for issuance, or outstanding and (ii) no outstanding
subscriptions, options, warrants, puts, calls, rights, or other commitments or
agreements of any character to which Cadis is a party or by which it is bound
obligating Cadis to issue, deliver, sell, repurchase or redeem, or cause to be
issued, delivered, sold, repurchased or redeemed, any equity securities of Cadis
or obligating Cadis to grant, extend, accelerate the vesting of, change the
exercise price of, or otherwise amend or enter into any such option, warrant,
call, right, commitment or agreement. Except as set forth on the Cadis
Disclosure Schedule, there are no contracts, commitments or agreements relating
to voting, purchase or sale of Cadis's capital stock (i) between or among Cadis
and any of its stockholders or (ii) to Cadis's knowledge, between or among any
of Cadis's stockholders.

        Section 3.3 Authority; Required Filings and Consents
                    ----------------------------------------     

                (a)  Cadis has all requisite corporate power and authority to
enter into this Agreement and to consummate the transactions contemplated
hereby. The execution and delivery of this Agreement and the consummation of the
transactions contemplated hereby have been duly authorized by all necessary
corporate action on the part of Cadis, subject only to the approval of the
Merger by Cadis's stockholders under the GCL. This Agreement and all other
documents expressly required to be executed and delivered by Cadis hereunder,
including the Certificate of Merger (collectively, the "Transaction Documents"),
have been or will be duly executed and delivered by Cadis and constitute or will
constitute the valid and binding obligations of Cadis, enforceable against Cadis
in accordance with their respective terms, except as such enforceability may be
limited by bankruptcy, insolvency, moratorium or other similar laws affecting or
relating to creditors' rights generally, and general principles of equity .

                (b)  The execution and delivery by Cadis of this Agreement and
the other Transaction Documents to which it is or will be a party do not, and
the consummation of the transactions contemplated hereby and thereby will not,
(i) conflict with, or result in any violation or breach of any provision of, the
Certificate of Incorporation or Bylaws of Cadis, (ii) result in any violation or
breach of or constitute (with or without notice or lapse of time, or both) a
default under, or give rise to a right of termination, cancellation or
acceleration of any obligation or loss of any benefit under, any note, mortgage,
indenture, lease, contract or other agreement or

                                       8
<PAGE>
 
obligation to which Cadis is a party or by which Cadis or any of its properties
or assets may be bound, or (iii) conflict with or violate any permit,
concession, franchise, license, judgment, order, decree, statute, law,
ordinance, rule or regulation applicable to Cadis or any of its properties or
assets.

                (c)  No consent, approval, order or authorization of, or
registration, declaration or filing with, any court, administrative agency or
commission or other governmental authority or instrumentality ("Governmental
Entity") is required by or with respect to Cadis in connection with the
execution and delivery of this Agreement or the consummation of the transactions
contemplated hereby, except for (i) the filing of the Certificate of Merger with
the Delaware Secretary of State in accordance with the GCL, (ii) such consents,
approvals, orders, authorizations, registrations, declarations and filings as
may be required under applicable federal and state securities laws, and (iii)
such other consents, authorizations, filings, approvals and registrations which,
if not obtained or made, would not prevent or materially alter or delay any of
the transactions contemplated by this Agreement or has or will have have a
Material Adverse Effect on Cadis.

        Section 3.4 Financial Statements. Cadis has delivered to Aspect (i) its
                    --------------------
audited financial statements for each of the years ended December 31, 1994,
1995, and 1996, and (ii) its unaudited financial statements, including
statements of operations and cash flows and balance sheet data, for the nine-
month period ended September 30, 1997 (collectively, the "Cadis Financial
Statements"). The Cadis Financial Statements are correct in all material
respects and were prepared in accordance with generally accepted accounting
principles ("GAAP") applied on a consistent basis throughout the periods
involved, except that the unaudited Cadis Financial Statements do not contain
footnotes. The Cadis Financial Statements present fairly the financial position
of Cadis as of the respective dates and the results of its operations and cash
flows for the periods indicated, subject to normal year-end adjustments in the
case of the unaudited Cadis Financial Statements. Cadis maintains and will
continue to maintain a standard system of accounting established and
administered in accordance with GAAP.

        Section 3.5 Absence of Undisclosed Liabilities. Cadis does not have any
                    ---------------------------------- 
liabilities, either accrued or contingent (whether or not required to be
reflected in financial statements in accordance with GAAP), and whether due or
to become due, other than (i) liabilities reflected or provided for on the
balance sheet as of September 30, 1997 (the "Cadis Balance Sheet") contained
in the Cadis Financial Statements, (ii) liabilities specifically described in
this Agreement or the Cadis Disclosure Schedule, and (iii) normal or recurring
liabilities incurred since September 30, 1997 in the ordinary course of business
consistent with past practices.

        Section 3.6 Absence of Certain Changes or Events. Since September 30,
                    ------------------------------------
1997, Cadis has conducted its business in the ordinary course and in a manner
consistent with past practices and, since such date, Cadis has not:

                (a)  suffered any event or occurrence that has had a Material
Adverse Effect on Cadis;

                                       9
<PAGE>
 
                (b)  suffered any damage, destruction or loss, whether covered
by insurance or not, which in the aggregate has had a Material Adverse Effect on
Cadis;

                (c)  granted any material increase in the compensation payable
or to become payable by Cadis to its officers or employees other than increases
in the ordinary course of business to employees who are not officers;

                (d)  declared, set aside or paid any dividend or made any other
distribution on or in respect of the shares of its capital stock or declared any
direct or indirect redemption, retirement, purchase or other acquisition of such
shares;

                (e)  issued any shares of its capital stock or any warrants,
rights, or options for, or entered into any commitment relating to such capital
stock;

                (f)  made any change in the accounting methods or practices it
follows, whether for general financial or tax purposes, or any change in
depreciation or amortization policies or rates;

                (g)  sold, leased, abandoned or otherwise disposed of any real
property, machinery, equipment or other operating property other than in the
ordinary course of business;

                (h)  sold, assigned, transferred, licensed or otherwise disposed
of any patent, trademark, trade name, brand name, copyright (or pending
application for any patent, trademark or copyright), invention, work of
authorship, process, know-how, formula or trade secret or interest thereunder or
other material intangible asset except for end-user license transactions entered
into in the ordinary course of its business pursuant to Cadis's standard forms
of license agreement;

                (i)  entered into any material commitment or transaction
(including without limitation any borrowing) other than commitments or
transactions entered into in the ordinary course of business that are not
reasonably likely to have a Material Adverse Effect on Cadis;

                (j)  permitted or allowed any of its property or assets to be
subjected to any mortgage, deed of trust, pledge, lien, security interest or
other encumbrance of any kind, except for liens for current taxes not yet due
and purchase money security interests incurred in the ordinary course of
business;

                (k)  made any capital expenditure or commitment for additions to
property, plant or equipment individually in excess of $25,000, or, in the
aggregate, in excess of $100,000;

                (l)  paid, loaned or advanced any amount to, or sold,
transferred or leased any properties or assets to, or entered into any agreement
or arrangement with, any of its officers, directors or stockholders or any
affiliate of any of the foregoing, other than employee compensation and benefits
and reimbursement of employment related business expenses incurred in the
ordinary course of business;

                                       10
<PAGE>
 
                (m)  agreed to take any action described in this Section 3.6 or
which would constitute a breach of any of the representations or warranties of
Cadis contained in this Agreement; or

                (n)  except as disclosed in the Cadis Disclosure Schedule, taken
any other action that would have required the consent of Aspect pursuant to
Section 5.1 of this Agreement (and which has not been obtained) had such action
occurred after the date of this Agreement.

        Section 3.7 Taxes.
                    -----     

                (a)  For purposes of this Agreement, a "Tax" or, collectively,
"Taxes", means any and all material federal, state and local taxes of any
country, assessments and other governmental charges, duties, impositions and
liabilities, including taxes based upon or measured by gross receipts, income,
profits, sales, use and occupation, and value added, ad valorem, transfer,
franchise, withholding, payroll, recapture, employment, excise and property
taxes, together with all interest, penalties and additions imposed with respect
to such amounts and any obligations under any agreements or arrangements with
any other person with respect to such amounts and including any liability for
taxes of a predecessor entity.

                (b)  Cadis has accurately prepared and timely filed all returns,
estimates, information statements and reports required to be filed with any
taxing authority ("Returns") relating to any and all Taxes concerning or
attributable to Cadis or its operations and such Returns are true and correct in
all respects and have been completed in all respects in accordance with
applicable law.

                (c)  Cadis, as of the Closing Date, (i) will have paid all Taxes
it is required to pay prior to the Closing Date and (ii) will have withheld with
respect to its employees all Taxes required to be withheld.

                (d)  There is no Tax deficiency outstanding or assessed or
proposed against Cadis that is not reflected as a liability on the Cadis Balance
Sheet or set forth on the Cadis Disclosure Schedule, nor has Cadis executed any
agreements or waivers extending any statute of limitations on or extending the
period for the assessment or collection of any Tax.

                (e)  Cadis has no liabilities for unpaid Taxes that have not
been accrued for or reserved on the Cadis Balance Sheet, whether asserted or
unasserted, contingent or otherwise.

                (f)  Cadis is not a party to any tax-sharing agreement or
similar arrangement with any other party, or any contractual obligation to pay
any Tax obligations of, or with respect to any transaction relating to, any
other person or to indemnify any other person with respect to any Tax.

        Section 3.8 Tangible Assets and Real Property.
                    ---------------------------------     
                (a)  Cadis owns or leases all tangible assets and properties
which are necessary for the conduct of its business as currently conducted or
which are reflected on the Cadis Balance Sheet or acquired since the date of the
Cadis Balance Sheet (the "Material Tangible Assets"). The

                                       11
<PAGE>
 
Material Tangible Assets are in good operating condition and repair. Cadis has
good and marketable title to all Material Tangible Assets that it owns (except
properties, interests in properties and assets sold or otherwise disposed of
since the date of the Cadis Balance Sheet in the ordinary course of business),
free and clear of all mortgages, liens, pledges, charges or encumbrances of any
kind or character, except as reflected in the Cadis Financial Statements and
except for liens for current taxes not yet due and payable. Assuming the due
execution and delivery thereof by the other parties thereto, all leases of
Material Tangible Assets to which Cadis is a party are in full force and effect
and valid, binding and enforceable in accordance with their respective terms,
except as such enforceability may be limited by bankruptcy, insolvency,
moratorium or other similar laws affecting or relating to creditors' rights
generally, and general principles of equity. The Cadis Disclosure Schedule sets
forth a true and correct list of all such leases, and true and correct copies of
all such leases have been provided to Aspect.

                (b)  Cadis owns no real property. The Cadis Disclosure Schedule
sets forth a true and complete list of all real property leased by Cadis.
Assuming the due execution and delivery thereof by the other parties thereto,
all such real property leases are in full force and effect and valid, binding
and enforceable in accordance with their respective terms, except as such
enforceability may be limited by bankruptcy, insolvency, moratorium or other
similar laws affecting or relating to creditors' rights generally, and general
principles of equity. True and correct copies all such of real property leases
have been provided to Aspect.

        Section 3.9 Intellectual Property.
                    ---------------------     

                (a)  Cadis owns, or is licensed or otherwise possesses legally
enforceable rights to use, all patents, trademarks, trade names, service marks
and copyrights, and any applications for and registrations of such patents,
trademarks, trade names, service marks, and copyrights and all processes,
formulas, methods, schematics, technology, know-how, computer software programs
or applications and tangible or intangible proprietary information or material
that are necessary to conduct the business of Cadis as currently conducted, or
as currently proposed to be conducted, free and clear of all liens, claims or
encumbrances (all of which are referred to as the "Cadis Intellectual Property
Rights"). The foregoing representation as it relates to Licensed Intellectual
Property (as defined below) is limited to Cadis's interest pursuant to licenses
from third parties, each of which is in full force and effect, is valid, binding
and enforceable and grants Cadis such rights to such intellectual property as
are necessary to the business of Cadis as currently conducted or currently
proposed to be conducted.

                (b)  The Cadis Disclosure Schedule contains an accurate and
complete description of (i) all patents and patent applications and all
trademarks, trade names, service marks and registered copyrights included in the
Cadis Intellectual Property Rights, including the jurisdictions in which each
such Cadis Intellectual Property Right has been issued or registered or in which
any such application for such issuance and registration has been filed, (ii) all
licenses and sublicenses, distribution agreements and other agreements to which
Cadis is a party and pursuant to which any person is authorized to use any Cadis
Intellectual Property Rights or has the right to manufacture, reproduce, market
or exploit any product of Cadis (a "Cadis Product") or any adaptation,
translation or derivative work based on any Cadis Product or any portion
thereof, other than nonexclusive end-user licenses entered into in the ordinary
course of business pursuant

                                       12
<PAGE>
 
to Cadis's standard forms of license agreement, (iii) all material licenses,
sublicenses and other agreements to which Cadis is a party and pursuant to which
Cadis is authorized to use any third party technology, trade secret, know-how,
process, patent, trademark or copyright, including software ("Licensed
Intellectual Property"), which is used in the manufacture of, incorporated in
or forms a part of any Cadis Product (other than licenses for off-the-shelf
software used in the conduct of Cadis's business), (iv) all joint development
agreements to which Cadis is a party, and (v) all agreements with Governmental
Entities or other third parties pursuant to which Cadis has obtained funding for
research and development activities.

                (c)  Cadis is not, nor will it be as a result of the execution
and delivery of this Agreement or the performance of its obligations under this
Agreement, in breach of any material license, sublicense or other agreement
relating to the Cadis Intellectual Property Rights or Licensed Intellectual
Property.

                (d)  All patents and registered trademarks, service marks and
copyrights claimed by or issued to Cadis which relate to any Cadis Product are
valid and subsisting. The manufacturing, marketing, licensing or sale of any
Cadis Product does not infringe any patent, trademark, service mark, copyright,
trade secret or other proprietary right of any third party. Cadis (i) has not
received notice that it has been sued in any suit, action or proceeding which
involves a claim of infringement of any patent, trademark, service mark,
copyright, trade secret or other proprietary right of any third party and (ii)
has no knowledge of any claim challenging or questioning the validity or
effectiveness of any license or agreement relating to any Cadis Intellectual
Property Rights or Licensed Intellectual Property.

                (e)  All designs, drawings, specifications, source code, object
code, documentation, flow charts and diagrams incorporated, embodied or
reflected in any Cadis Product at any stage of its development (the "Cadis
Components") were written, developed and created solely and exclusively by (i)
employees of Cadis without the assistance of any third party or (ii) third
parties who assigned ownership of their rights with respect thereto to Cadis by
means of valid and enforceable agreements, which are listed and described in the
Cadis Disclosure Schedule and copies of which have been provided to Aspect.
Cadis has at all times used commercially reasonable efforts to protect its trade
secrets and has not acted in such a manner as to cause the loss of such trade
secrets by their release into the public domain.

                (f)  Each person currently or formerly employed by Cadis
(including independent contractors, if any) that has or had access to
confidential information of Cadis has executed and delivered to Cadis a
confidentiality and non-disclosure agreement in one of the forms previously
provided to Aspect. Neither the execution or delivery of any such agreement by
any such person, nor the carrying on of Cadis's business as currently conducted
and as currently proposed to be conducted, has or will conflict with or result
in a material breach of the terms, conditions or provisions of, or constitute a
material default under, any contract, covenant or instrument under which any of
such persons is obligated.

        Section 3.10 Bank Accounts. The Cadis Disclosure Schedule sets forth the
                     -------------
names and locations of all banks and other financial institutions at which Cadis
maintains accounts of any

                                       13
<PAGE>
 
nature, the type of accounts maintained at each such institution and the names
of all persons authorized to draw thereon or make withdrawals therefrom.

        Section 3.11 Contracts.
                     ---------     

                (a)  Except as set forth in the Cadis Disclosure Schedule, Cadis
is not a party or subject to any agreement, obligation or commitment, written or
oral:

                        (i)     that calls for any fixed or contingent payment
or expenditure or any related series of fixed or contingent payments or
expenditures by or to Cadis totaling more than $50,000 in any twelve-month
period;

                        (ii)    with agents, advisors, salesmen, sales
representatives, independent contractors or consultants other than those that
are not cancelable by it on no more than thirty (30) days' notice and without
liability, penalty or premium;

                        (iii)   that restricts Cadis from carrying on anywhere
in the world its business or any portion thereof as currently conducted;

                        (iv)    to provide funds to or to make any investment in
any other person or entity (in the form of a loan, capital contribution or
otherwise);

                        (v)     with respect to obligations as guarantor,
surety, co-signer, endorser, co-maker, indemnitor or otherwise in respect of the
obligation of any other person or entity;

                        (vi)    for any line of credit, standby financing,
revolving credit or other similar financing arrangement; or

                        (vii)   with any distributor, original equipment
manufacturer, value added remarketer or other person for the distribution of any
of the Cadis Products.

                (b)  No party to any such contract, agreement or instrument has
expressed its intention to any officer of Cadis to cancel, withdraw, modify or
amend such contract, agreement or instrument, nor does Cadis otherwise know of
such an intention.

                (c)  Cadis is not in default under or in breach or violation of,
nor is there any valid basis for any claim of default by Cadis under, or breach
or violation by Cadis of, any material contract, commitment or restriction to
which Cadis is a party or by which Cadis or any of its properties or assets is
bound or affected. To Cadis's knowledge, no other party is in default under or
in breach or violation of, nor is there any valid basis for any claim of default
by any other party under, or any breach or violation by any other party of, any
material contract, commitment, or restriction to which Cadis is a party or by
which Cadis or any of its properties or assets is bound or affected. Cadis has
no reason to believe that it will not be able to comply with the terms or
conditions of any material contract to which it is a party without a material
increase in its technical or personnel resources allocated to such contract
compared to the resources budgeted by Cadis as of the date of this Agreement or
any other material increase in the cost of satisfying any covenants

                                       14
<PAGE>
 
or conditions under such contract compared to the costs budgeted by Cadis as of
the date of this Agreement.

        Section 3.12 Labor Difficulties. Cadis is not engaged in any unfair
                     ------------------
labor practice or in violation of any applicable laws respecting employment,
employment practices or terms and conditions of employment. There is no unfair
labor practice complaint against Cadis pending or threatened before any
Governmental Entity. There is no strike, labor dispute, slowdown, or stoppage
pending or threatened against Cadis. Cadis is not now and has never been subject
to any union organizing activities. Cadis has not experienced any work stoppage
or other labor difficulty.

        Section 3.13 Trade Regulation. Except as set forth in the Cadis
                     ----------------
Disclosure Schedule, Cadis has not terminated its relationship with or refused
to ship Cadis Products to any dealer, distributor, third party marketing entity
or customer which had theretofore paid or been obligated to pay Cadis in excess
of $10,000 over any consecutive twelve (12) month period. All of the prices
charged by Cadis in connection with the marketing or sale of any of its products
or services have been in compliance with all applicable laws and regulations. No
claims have been asserted or, to Cadis's knowledge, threatened against Cadis
with respect to the wrongful termination of any dealer, distributor or any other
marketing entity, discriminatory pricing, price fixing, unfair competition,
false advertising, or any other material violation of any laws or regulations
relating to anti-competitive practices or unfair trade practices of any kind,
and, to Cadis's knowledge, no specific situation, set of facts, or occurrence
provides any basis for any such claim.

        Section 3.14 Environmental Matters.
                     ---------------------     

                (a)  As of the date hereof, except as set forth in the Cadis
Disclosure Schedule, no material amount of any substance that has been
designated by applicable law or regulation to be radioactive, toxic, hazardous
or otherwise a danger to health or the environment, excluding office, janitorial
and similar substances (a "Hazardous Material"), is present, as a result of
the actions of Cadis or, to Cadis's knowledge, as a result of any actions of any
third party or otherwise, in, on or under any property, including the land and
the improvements, ground water and surface water, that Cadis has at any time
owned, operated, occupied or leased. To the knowledge of Cadis, no underground
storage tanks are present under any property that Cadis has at any time owned,
operated, occupied or leased.

                (b)  At no time has Cadis transported, stored, used,
manufactured, disposed of, released or exposed its employees or others to
Hazardous Materials (collectively, "Hazardous Materials Activities") in
violation of any law, rule, regulation or treaty promulgated by any Governmental
Entity which has had or is likely to have a Material Adverse Effect on Cadis.

                (c)  Cadis currently holds all environmental approvals, permits,
licenses, clearances and consents (the "Environmental Permits") necessary for
the conduct of its business as such businesses is currently being conducted, the
absence of which would have a Material Adverse Effect on Cadis.

                (d)  No action, proceeding, writ, injunction or claim is pending
or, to the knowledge of Cadis, threatened concerning any Environmental Permit or
any Hazardous 

                                       15
<PAGE>
 
Materials Activity of Cadis. Cadis is not aware of any fact or circumstance
which could reasonably be expected to involve Cadis in any environmental
litigation or impose upon Cadis any liability concerning Hazardous Materials
Activities which would have a Material Adverse Effect on Cadis.

        Section 3.15 Employee Benefit Plans.
                     ----------------------     

                (a)  Cadis has set forth in the Cadis Disclosure Schedule (i)
all employee benefit plans, (ii) all bonus, stock option, stock purchase,
incentive, deferred compensation, supplemental retirement, severance and other
similar employee benefit plans, and (iii) all unexpired severance agreements,
written or otherwise, for the benefit of, or relating to, any current or former
employee of Cadis (individually, a "Cadis Employee Plan," and collectively,
the "Cadis Employee Plans").

                (b)  With respect to each Cadis Employee Plan, Cadis has made
available to Aspect a true and correct copy of (i) such Cadis Employee Plan and
(ii) each trust agreement and group annuity contract, if any, relating to such
Cadis Employee Plan.

                (c)  With respect to the Cadis Employee Plans, individually and
in the aggregate, no event has occurred, and there exists no condition or set of
circumstances in connection with which Cadis could be subject to any liability
which would have a Material Adverse Effect on Cadis.

                (d)  With respect to the Cadis Employee Plans, individually and
in the aggregate, there are no funded benefit obligations for which
contributions have not been made or properly accrued and there are no unfunded
benefit obligations which have not been accounted for by reserves, or otherwise
properly footnoted in accordance with GAAP, on the financial statements or books
of Cadis which would have a Material Adverse Effect on Cadis.

                (e)  Cadis is not a party to any oral or written (i) union or
collective bargaining agreement, (ii) agreement with any officer or other key
employee of Cadis, the benefits of which are contingent, or the terms of which
are materially altered, upon the occurrence of a transaction involving Cadis of
the nature contemplated by this Agreement, (iii) agreement with any officer of
Cadis providing any term of employment or compensation guarantee or for the
payment of compensation in excess of $100,000 per annum, or (iv) agreement or
plan, including any stock option plan, stock appreciation right plan, restricted
stock plan or stock purchase plan, any of the benefits of which will be
increased, or the vesting of the benefits of which will be accelerated, by the
occurrence of any of the transactions contemplated by this Agreement or the
value of any of the benefits of which will be calculated on the basis of any of
the transactions contemplated by this Agreement.

        Section 3.16 Compliance with Laws. Cadis has complied with, is not in 
                     --------------------
violation of, and has not received any notices of violation with respect to, any
statute, law or regulation applicable to the ownership or operation of its
business.

                                       16
<PAGE>
 
        Section 3.17 Employees and Consultants. The Cadis Disclosure Schedule
                     -------------------------
contains a list of the names of all employees and consultants of Cadis as of the
date of this Agreement and their salaries or wages, other compensation, dates of
employment and positions.

        Section 3.18 Litigation. Except as set forth on the Cadis Disclosure
                     ----------
Schedule, there is no action, suit, proceeding, claim, arbitration or
investigation pending before any agency, court or tribunal or, to Cadis's
knowledge, threatened against Cadis or any of its properties or officers or
directors (in their capacities as such). There is no judgment, decree or order
against Cadis or, to its knowledge, any of its directors or officers (in their
capacities as such) that could prevent, enjoin or materially alter or delay any
of the transactions contemplated by this Agreement, or that could reasonably be
expected to have a Material Adverse Effect on Cadis. All litigation to which
Cadis is a party (or, to its knowledge, threatened to become a party) is
disclosed in the Cadis Disclosure Schedule.

        Section 3.19 Restrictions on Business Activities. There is no agreement,
                     -----------------------------------  
judgment, injunction, order or decree binding upon Cadis which has or could
reasonably be expected to have the effect of prohibiting or materially impairing
any current or future business practice of Cadis or the conduct of business by
Cadis as currently conducted or as currently proposed to be conducted.

        Section 3.20 Governmental Authorization. Cadis has obtained each
                     --------------------------
governmental consent, license, permit, grant or other authorization of a
Governmental Entity that is required for the operation of the business of Cadis
(collectively, the "Cadis Authorizations"), and all of such Cadis
Authorizations are in full force and effect.

        Section 3.21 Insurance. Cadis has insurance policies of the type and in
                     ---------
amounts customarily carried by persons conducting businesses or owning assets
similar to those of Cadis. The Cadis Disclosure Schedule contains a list and
description of all such policies. There is no material claim pending under any
of such policies as to which coverage has been questioned, denied or disputed by
the underwriters of such policies. All premiums due and payable under all such
policies have been paid, and Cadis is otherwise in compliance with the terms of
such policies. Cadis has no knowledge of any threatened termination of, or
material premium increase with respect to, any of such policies.

        Section 3.22 Pooling of Interests. Neither Cadis nor, to its knowledge,
                     --------------------
any of its directors, officers or stockholders has taken any action which would
interfere with Aspect's ability to account for the Merger as a pooling of
interests.

        Section 3.23 Interested Party Transactions.
                     -----------------------------     

                (a)  Except as set forth on the Disclosure Schedule, no
director, officer or stockholder of Cadis has any interest in (i) any material
equipment or other material property or asset, real or personal, tangible or
intangible, including, without limitation, any of the Cadis Intellectual
Property Rights, used in connection with or pertaining to the business of Cadis,
(ii) any creditor, supplier, customer, manufacturer, agent, representative, or
distributor of any of the Cadis Products, (iii) any entity that competes with
Cadis, or with which Cadis is affiliated or has a

                                       17
<PAGE>
 
business relationship, or (iv) any material agreement, obligation or commitment,
written or oral, to which Cadis is a party; provided, however, that no such
                                            -----------------
person shall be deemed to have such an interest solely by virtue of ownership of
less than five percent (5%) of the outstanding stock or debt securities of any
company whose stock or debt securities are traded on a recognized stock exchange
or on the NNM.

                (b)  Except as contemplated by the Transaction Documents or
otherwise set forth in the Cadis Disclosure Schedule, Cadis is not a party to
any (i) agreement with any officer or other employee of Cadis the benefits of
which are contingent, or the terms of which are materially altered, upon the
occurrence of a transaction involving Cadis in the nature of any of the
transactions contemplated by this Agreement, or (ii) agreement or plan,
including, without limitation, any stock option plan, stock appreciation right
plan or stock purchase plan, any of the benefits of which will be increased, or
the vesting of benefits of which will be accelerated, by the occurrence of any
of the transactions contemplated by this Agreement or the value of any of the
benefits of which will be calculated on the basis of any of the transactions
contemplated by this Agreement.

        Section 3.24 No Existing Discussions. As of the date hereof, Cadis is
                     -----------------------
not engaged, directly or indirectly, in any discussions or negotiations with any
party other than Aspect with respect to an Acquisition Proposal (as defined in
Section 6.1).

        Section 3.25 Real Property Holding Corporation. Cadis is not a "United
                     ---------------------------------
States real property holding corporation" within the meaning of Section
897(c)(2) of the Code.

        Section 3.26 Corporate Documents. Cadis has furnished to Aspect, or its
                     ------------------- 
representatives, for its examination (i) its minute book containing all records
required to be set forth of all proceedings, consents, actions, and meetings of
the stockholders, the Board of Directors and any committees thereof and (ii) all
permits, orders, and consents issued by any Governmental Entity with respect to
Cadis. The corporate minute books and other corporate records of Cadis are
complete and accurate in all material respects for the period after October 31,
1991, and the signatures of all officers and directors of Cadis and, to its
knowledge, the signatures of all stockholders and other persons appearing on all
documents contained therein are the true signatures of the persons purporting to
have signed the same. All actions reflected in such books and records were duly
and validly taken in material compliance with the laws of the applicable
jurisdiction. Cadis has delivered or made available to Aspect or its
representatives true and complete copies of all documents which are referred to
in this Article III or in the Cadis Disclosure Schedule.

        Section 3.27 Information Statement. The information supplied by Cadis
                     ---------------------
for inclusion in the information statement to be sent to the stockholders of
Cadis in connection with their approval of the Merger (the "Information
Statement") shall not, on the date the Information Statement is first mailed
to Cadis stockholders, and at the Effective Time, contain any statement which is
false or misleading with respect to any material fact, or omit to state any
material fact necessary in order to make the statements made therein, in light
of the circumstances under which they are made, not false or misleading. If any
at time prior to the Effective Time any event of information should be
discovered by Cadis which should be set forth in an amendment to the

                                       18
<PAGE>
 
Information Statement, Cadis shall promptly inform Aspect and Sub and shall
communicate such information to the Cadis stockholders in an appropriate manner.
Notwithstanding the foregoing, Cadis makes no representation, warranty or
covenant with respect to any information supplied by Aspect which is contained
in any of the foregoing documents.

        Section 3.28 No Misrepresentation. No representation or warranty by
                     --------------------
Cadis in this Agreement, or any written statement, certificate or schedule
furnished or to be furnished by or on behalf of Cadis pursuant to this
Agreement, when taken together, contains or shall contain any untrue statement
of a material fact or omits or shall omit to state a material fact required to
be stated therein or necessary in order to make such statements, in light of the
circumstances under which they were made, not misleading.
 

                                   ARTICLE IV


               REPRESENTATIONS AND WARRANTIES OF ASPECT AND SUB

     Except as set forth in the disclosure schedule delivered by Aspect to Cadis
on or before the date of this Agreement (the "Aspect Disclosure Schedule"),
Aspect and Sub represent and warrant to Cadis as follows:

        Section 4.1 Organization. Each of Aspect, Sub and Aspect's Subsidiaries
                    ------------
is a corporation duly organized, validly existing and in good standing under the
laws of the jurisdiction of its incorporation, has all requisite corporate power
to own, lease and operate its property and to carry on its business as now being
conducted and as proposed to be conducted, and is duly qualified to transact
business and is in good standing as a foreign corporation in each jurisdiction
in which the failure to be so qualified would have a Material Adverse Effect on
Aspect. Except as set forth in the Aspect SEC Reports (as defined in Section
4.4) or the Aspect Disclosure Schedule, neither Aspect nor any of its
Subsidiaries directly or indirectly owns any equity or similar interest in, or
any interest convertible into or exchangeable or exercisable for, any
corporation, partnership, joint venture or other business association or entity.

        Section 4.2 Aspect Capital Structure.
                    ------------------------     

                (a)  The authorized capital stock of Aspect consists of
20,000,000 shares of Aspect Common Stock and 2,000,000 shares of Preferred
Stock, $.001 par value ("Aspect Preferred Stock"). As of September 30, 1997:
(i) 12,932,885 shares of Aspect Common Stock were issued and outstanding, all of
which are validly issued, fully paid and nonassessable; (ii) no shares of Aspect
Common Stock were held in the treasury of Aspect or by Subsidiaries of Aspect;
(iii) 2,473,312 shares of Aspect Common Stock were reserved for issuance
pursuant to stock options granted and outstanding under Aspect's stock option
plans (the "Aspect Option Plans"), and rights outstanding under Aspect's
Employee Stock Purchase Plan (the "Aspect Purchase Plan"). No material change
in such capitalization has occurred between September 30, 1997 and the date of
this Agreement. As of the date of this Agreement, none of the shares of Aspect
Preferred Stock are issued and outstanding. All shares of Aspect Common Stock
subject to issuance as specified above, upon issuance on the terms and
conditions specified in the

                                       19
<PAGE>
 
instruments pursuant to which they are issuable, will be duly authorized,
validly issued, fully paid and nonassessable. All of the outstanding shares of
capital stock of Sub are duly authorized, validly issued, fully paid and
nonassessable, and all such shares are owned by Aspect free and clear of all
security interests, liens, claims, pledges, agreements, limitations on Aspect's
voting rights, charges or other encumbrances of any nature.

                (b)  Except as set forth in this Section 4.2 or as reserved for
future grants of options under the Aspect Option Plans or the Aspect Purchase
Plan (as more fully described in the Aspect SEC Reports), there are (i) no
equity securities of any class of Aspect, or any security exchangeable into or
exercisable for such equity securities, issued, reserved for issuance or
outstanding and (ii) no outstanding subscriptions, options, warrants, puts,
calls, rights or other commitments or agreements of any character to which
Aspect is a party or by which it is bound obligating Aspect to issue, deliver,
sell, repurchase or redeem or cause to be issued, delivered, sold, repurchased
or redeemed any equity securities of Aspect or obligating Aspect to grant,
extend, accelerate the vesting of, change the exercise price of or otherwise
amend or enter into any such option, warrant, call, right, commitment or
agreement.

                (c)  The shares of Aspect Common Stock to be issued pursuant to
the Merger, when issued in accordance with the terms of this Agreement, will be
duly authorized, validly issued, fully paid, and nonassessable and, assuming the
truthfulness of the representations and warranties of Cadis's stockholders set
forth in the Affiliate Agreement (as defined in Section 6.11 hereof) and the
Stockholder Agreement (as defined in Section 7.2(l) hereof), will be issued in
compliance with the registration requirements of the Securities Act or a valid
exemption therefrom.

        Section 4.3 Authority; No Conflict; Required Filings and Consents.
                    -----------------------------------------------------     

                (a)  Aspect and Sub have all requisite corporate power and
authority to enter into this Agreement and the other Transaction Documents to
which they are or will be parties and to consummate the transactions
contemplated hereby and thereby. The execution and delivery of this Agreement
and the other Transaction Documents to which Aspect or Sub is or will be a party
and the consummation of the transactions contemplated hereby and thereby have
been duly authorized by all necessary corporate action on the part of Aspect and
Sub, respectively. This Agreement and the other Transaction Documents to which
Aspect and/or Sub are parties have been or will be duly executed and delivered
by Aspect and/or Sub and constitute or will constitute the valid and binding
obligations of Aspect and/or Sub, enforceable in accordance with their terms,
except as such enforceability may be limited by bankruptcy laws and other
similar laws affecting creditors' rights generally and general principles of
equity.

                (b)  The execution and delivery by Aspect and Sub of this
Agreement and the other Transaction Documents to which they are or will be
parties do not, and the consummation of the transactions contemplated hereby and
thereby will not, (i) conflict with, or result in any violation or breach of any
provision of the Certificate of Incorporation or Bylaws of Aspect or Sub, (ii)
result in any violation or breach of, or constitute (with or without notice or
lapse of time, or both) a default under, or give rise to a right of termination,
cancellation or acceleration of any material obligation or loss of any material
benefit under, any note, mortgage, indenture, lease,

                                       20
<PAGE>
 
contract or other agreement, instrument or obligation to which Aspect or Sub is
a party or by which either of them or any of their properties or assets may be
bound, or (iii) conflict with or violate any permit, concession, franchise,
license, judgment, order, decree, statute, law, ordinance, rule or regulation
applicable to Aspect or Sub or any of its or their properties or assets, except
in the case of (ii) and (iii) for any such conflicts, violations, defaults,
terminations, cancellations or accelerations which would not be reasonably
likely to have a Material Adverse Effect on Aspect.

                (c)  No consent, approval, order or authorization of, or
registration, declaration or filing with, any Governmental Entity is required by
or with respect to Aspect or any of its Subsidiaries in connection with the
execution and delivery of this Agreement or the consummation of the transactions
contemplated hereby, except for (i) the filing of the Certificate of Merger with
the Delaware Secretary of State in accordance with the GCL, (ii) such consents,
approvals, orders, authorizations, registrations, declarations and filings as
may be required under applicable federal and state securities laws and the laws
of any foreign country and (iii) such other consents, authorizations, filings,
approvals and registrations which, if not obtained or made, would not prevent or
materially alter or delay any of the transactions contemplated by this Agreement
or be reasonably likely to have a Material Adverse Effect on Aspect.

        Section 4.4 SEC Filings; Financial Statements.
                    ---------------------------------     

                (a)  Aspect has timely filed and made available to Cadis all
forms, reports and documents required to be filed by Aspect with the Securities
and Exchange Commission (the "SEC") since June 30, 1996 other than registration
statements on Form S-8 (collectively, the "Aspect SEC Reports"). The Aspect SEC
Reports (i) at the time filed, complied in all material respects with the
applicable requirements of the Securities Act of 1933, as amended (the
"Securities Act"), and the Securities Exchange Act of 1934, as amended (the
"Exchange Act"), as the case may be, and (ii) did not at the time they were
filed (or if amended or superseded by a filing prior to the date of this
Agreement, then on the date of such filing) contain any untrue statement of a
material fact or omit to state a material fact required to be stated in such
Aspect SEC Reports or necessary in order to make the statements in such Aspect
SEC Reports, in the light of the circumstances under which they were made, not
misleading. None of Aspect's Subsidiaries is required to file any forms, reports
or other documents with the SEC.

                (b)  Each of the consolidated financial statements (including,
in each case, any related notes) contained in the Aspect SEC Reports, including
any Aspect SEC Reports filed after the date of this Agreement until the Closing,
complied or will comply as to form in all material respects with the applicable
published rules and regulations of the SEC with respect thereto, was or will be
prepared in accordance with GAAP applied on a consistent basis throughout the
periods involved (except as may be indicated in the notes to such financial
statements or, in the case of unaudited statements, as permitted by Form 10-Q
promulgated by the SEC) and presented fairly or will present fairly, in all
material respects, the consolidated financial position of Aspect and its
Subsidiaries as at the respective dates and the consolidated results of its
operations and cash flows for the periods indicated, except that the unaudited
interim financial statements were or are subject to normal and recurring year-
end adjustments which were not or are not expected to be material in amount. The
unaudited consolidated balance sheet of Aspect as of September 30, 1997 is
referred to herein as the "Aspect Balance Sheet."

                                       21
<PAGE>
 
        Section 4.5 Absence of Certain Changes or Events. Since September 30,
                    ------------------------------------
1997, there has been no material adverse change in the business, assets,
financial condition or results of operations of Aspect, and Aspect has conducted
its business in the ordinary course and in a manner consistent with past
practices. Since September 30, 1997, Aspect has not agreed to take any action
outside the ordinary course of business or that would constitute a breach of any
of the representations or warranties of Aspect contained in this Agreement.

        Section 4.6 Pooling of Interests. Neither Aspect nor, to its knowledge,
                    --------------------
any of its directors, officers, or stockholders has taken any action which would
interfere with Aspect's ability to account for the Merger as a pooling of
interests.

        Section 4.7 Interim Operations of Sub. Sub was formed solely for the
                    -------------------------
purpose of engaging in the transactions contemplated by this Agreement, has
engaged in no other business activities and has conducted its operations only as
contemplated by this Agreement.
 

                                   ARTICLE V


                              CONDUCT OF BUSINESS

        Section 5.1 Covenants of Cadis. During the period from the date of this
                    ------------------
Agreement and continuing until the earlier of the termination of this Agreement
or the Effective Time, Cadis agrees (except to the extent that Aspect shall
otherwise consent in writing), to carry on its business in the usual, regular
and ordinary course in substantially the same manner as previously conducted, to
pay its debts and taxes when due, subject to good faith disputes over such debts
or taxes, to pay or perform its other obligations when due (subject to good
faith disputes with respect to such obligations), and, to the extent consistent
with such business, to use all commercially reasonable efforts consistent with
past practices and policies to (i) preserve intact its present business
organization, (ii) keep available the services of its present officers and key
employees (except in the case of pending terminations of officers or key
employees as to which Aspect has been notified by Cadis as of the date hereof,
or as to which Aspect has notified Cadis prior to the Closing Date as to its
intention to terminate such person) and (iii) preserve its relationships with
customers, suppliers, distributors, licensors, licensees and others having
business dealings with it. Cadis shall promptly notify Aspect of any event or
occurrence not in the ordinary course of business of Cadis where such event or
occurrence would result in a breach of any covenant of Cadis set forth in this
Agreement or cause any representation or warranty of Cadis set forth in this
Agreement to be untrue as of the date of, or giving effect to, such event or
occurrence. Except as expressly contemplated by this Agreement, Cadis shall not,
without the prior written consent of Aspect:

                (a)  Grant or accelerate, amend or change the period of
exercisability of options or restricted stock granted under any employee stock
plan of Cadis or authorize cash payments in exchange for any options granted
under any of such plans except as required by the terms of such plans or any
related agreements in effect as of the date of this Agreement ;

                                       22
<PAGE>
 
                (b)  Transfer or license to any person or entity or otherwise
extend, amend or modify any rights to the Cadis Intellectual Property Rights
other than in the ordinary course of business consistent with past practices;

                (c)  Declare or pay any dividends on or make any other
distributions (whether in cash, stock or property) in respect of any of its
capital stock, or split, combine or reclassify any of its capital stock or issue
or authorize the issuance of any other securities in respect of, in lieu of or
in substitution for shares of its capital stock, or purchase or otherwise
acquire, directly or indirectly, any shares of its capital stock except from
former employees, directors and consultants in accordance with agreements
providing for the repurchase of shares in connection with any termination of
service by such party;

                (d)  Issue, deliver or sell or authorize or propose the
issuance, delivery or sale of, any shares of its capital stock or securities
convertible into shares of its capital stock, or subscriptions, rights, warrants
or options to acquire, or other agreements or commitments of any character
obligating it to issue any such shares or other convertible securities, other
than the issuance of shares of Cadis Common Stock upon the exercise or
conversion of Cadis Options or Cadis Preferred Stock outstanding as of the date
of this Agreement;

                (e)  Acquire or agree to acquire by merging or consolidating
with, or by purchasing a substantial equity interest in or substantial portion
of the assets of, or by any other manner, any business or any corporation,
partnership or other business organization or division, or otherwise acquire or
agree to acquire any assets other than acquisitions involving aggregate
consideration of not more than $75,000;

                (f)  Sell, lease, license or otherwise dispose of any of its
properties or assets which are material, individually or in the aggregate, to
the business of Cadis, except for transactions entered into in the ordinary
course of business;

                (g)  Take any action to (i) increase or agree to increase the
compensation payable or to become payable to its officers or employees, (ii)
grant any additional severance or termination pay to, or enter into any
employment or severance agreements with, officers, (iii) grant any severance or
termination pay to, or enter into any employment or severance agreement, with
any non-officer employee, except in accordance with past practices, (iv) enter
into any collective bargaining agreement, or (v) establish, adopt, enter into or
amend in any material respect any bonus, profit sharing, thrift, compensation,
stock option, restricted stock, pension, retirement, deferred compensation,
employment, termination, severance or other plan, trust, fund, policy or
arrangement for the benefit of any directors, officers or employees;

                (h)  Revalue any of its assets, including writing down the value
of inventory or writing off notes or accounts receivable, other than in the
ordinary course of business;

                (i)  Incur any indebtedness for borrowed money or guarantee any
such indebtedness or issue or sell any debt securities or warrants or rights to
acquire any debt securities or guarantee any debt securities of others, other
than indebtedness incurred under outstanding lines of credit consistent with
past practice;

                                       23
<PAGE>
 
                (j)  Amend or propose to amend its Certificate of Incorporation
or Bylaws, except as contemplated by this Agreement;

                (k)  Incur or commit to incur any individual capital expenditure
in excess of $25,000 or aggregate capital expenditures in excess of $75,000, in
addition to the existing commitments set forth in the Cadis Disclosure Schedule;
(l) Enter into any agreements or amendments to existing agreements pursuant to
which any third party is granted exclusive marketing or distribution rights with
respect to any Cadis Product;

                (m)  Through November 26, 1997, make any sales proposal or enter
into any sales contract;

                (n)  Amend or terminate any contract, agreement or license to
which it is a party, except in the ordinary course of business;

                (o)  Waive or release any material right or claim, except in the
ordinary course of business;

                (p)  Initiate any litigation or arbitration proceeding; or

                (q)  Take or agree to take, in writing or otherwise, any of the
actions described in paragraphs (a) through (p) above, or any action which is
reasonably likely to make any of Cadis's representations or warranties contained
in this Agreement untrue or incorrect in any material respect on the date made
(to the extent so limited) or as of the Effective Time, provided that Aspect
expressly acknowledges and agrees that, notwithstanding any other provision of
this Agreement, in the event Aspect denies Cadis's request that it consent to
any action described in paragraphs (a) through (q) of this Section 5.1,
including but not limited to an action described in paragraph (m), Cadis's
failure to take the requested action shall not, by itself, give rise to a breach
of this Agreement by Cadis, notwithstanding any Material Adverse Effect on Cadis
resulting from the failure to take such action.

        Section 5.2 Covenants of Aspect. During the period from the date of this
                    -------------------
Agreement and continuing until the earlier of the termination of this Agreement
or the Effective Time, Aspect agrees (except to the extent that Cadis shall
otherwise consent in writing), to carry on its business in the usual, regular
and ordinary course in substantially the same manner as previously conducted, to
pay its debts and Taxes when due, subject to good faith disputes over such debts
or Taxes, to pay or perform its other obligations when due, and, to the extent
consistent with such business, use all commercially reasonable efforts
consistent with past practices and policies to (i) preserve intact its present
business organization, (ii) keep available the services of its present officers
and key employees and (iii) preserve its relationships with customers,
suppliers, distributors, licensors, licensees and others having business
dealings with it. Aspect shall promptly notify Cadis of any event or occurrence
not in the ordinary course of business of Aspect where such event or occurrence
would result in a breach of any covenant of Aspect set forth in this

                                       24
<PAGE>
 
Agreement or cause any representation or warranty of Aspect set forth in this
Agreement to be untrue as of the date of, or giving effect to, such event or
occurrence.

        Section 5.3 Cooperation. Subject to compliance with applicable law, from
                    -----------
the date hereof until the Effective Time, each of Aspect and Cadis shall confer
on a regular and frequent basis with one or more representatives of the other
party to report operational matters of materiality and the general status of
ongoing operations and shall promptly provide the other party or its counsel
with copies of all filings made by such party with any Governmental Entity in
connection with this Agreement, the Merger and the transactions contemplated
hereby.
 

                                   ARTICLE VI


                             ADDITIONAL AGREEMENTS

        Section 6.1 No Solicitation.
                    ---------------     

                (a)  During the period from the date of this Agreement until the
earlier of the termination of this Agreement or the Effective Time, Cadis shall
not, directly or indirectly, through any officer, director, employee,
representative or agent, (i) solicit, initiate, or encourage any inquiries or
proposals that constitute, or could reasonably be expected to lead to, a
proposal or offer for a merger, consolidation, business combination, sale of
substantial assets, sale of shares of capital stock (including without
limitation by way of a tender offer) or similar transactions involving Cadis,
other than the transactions contemplated by this Agreement (any of the foregoing
inquiries or proposals being referred to in this Agreement as an "Acquisition
Proposal"), (ii) engage in negotiations or discussions concerning, or provide
any non-public information to any person or entity relating to, any Acquisition
Proposal, or (iii) agree to, approve or recommend any Acquisition Proposal.

                (b)  Cadis shall notify Aspect no later than twenty-four (24)
hours after receipt by an officer of Cadis (or by any of Cadis's advisors) of
any Acquisition Proposal or any request for nonpublic information in connection
with an Acquisition Proposal or for access to the properties, books or records
of Cadis by any person or entity that informs Cadis that it is considering
making, or has made, an Acquisition Proposal. Such notice shall be made orally
and in writing and shall indicate in reasonable detail the identity of the
offeror and the terms and conditions of such proposal, inquiry or contact.

        Section 6.2 Registration Rights.
                    -------------------     

                (a)  Aspect shall use all reasonable efforts to cause the shares
of Aspect Common Stock issued in the Merger other than the Escrow Shares (the
"Registrable Securities") to be registered under the Securities Act so as to
permit the resale thereof, and in connection therewith shall use all reasonable
efforts to prepare and file with the SEC within forty-five (45) days following
the Closing, and shall use all reasonable efforts to cause to become effective
no later than ninety (90) days after the Effective Time, a registration
statement (the "Registration Statement") on Form S-3 or on such other form as is
then available under the Securities Act

                                       25
<PAGE>
 
covering the Registrable Securities; provided, however, that each holder of
                                     -----------------
Registrable Securities ("Holder") shall provide all such information and
materials to Aspect and take all such action as may be required in order to
permit Aspect to comply with all applicable requirements of the SEC and to
obtain any desired acceleration of the effective date of such Registration
Statement. Such provision of information and materials is a condition precedent
to the obligations of Aspect pursuant to this Section 6.2. Aspect shall not be
required to effect more than one (1) registration under this Section 6.2. The
offering made pursuant to such registration shall not be underwritten.

                (b)  Notwithstanding Section 6.2(a), Aspect shall be entitled to
postpone the declaration of effectiveness of the Registration Statement prepared
and filed pursuant to Section 6.2(a) for a reasonable period of time up to 
forty-five (45) calendar days after the deadline therefore set forth in Section
6.2(a), if the Board of Directors of Aspect, acting in good faith, determines
that there exists material nonpublic information about Aspect which the Board
does not wish to disclose in a registration statement, which information would
otherwise be required by the Securities Act to be disclosed in the Registration
Statement to be filed pursuant to Section 6.2(a) above. Aspect shall have the
right to extend such 45-day postponement upon the written consent of the
Stockholder Representative (as defined in Section 9.6 hereof); provided,
                                                               --------
however, that Aspect will use all reasonable efforts to limit the extension to
- -------
as short a period as possible. In each case, Aspect shall furnish the
Stockholder Representative with a written notice summarizing in reasonable
detail the material nonpublic information upon which the postponement or
extension of such postponement is based, which information the Stockholder
Representative shall treat as confidential.

                (c)  Subject to the limitations of Section 6.2(b) above, Aspect
shall (i) prepare and file with the SEC the Registration Statement in accordance
with Section 6.2(a) hereof with respect to the shares of Registrable Securities
and shall use all reasonable efforts to cause the Registration Statement to
become effective as promptly as practicable after filing and to keep the
Registration Statement effective until one (1) year after the Effective Time;
and (ii) prepare and file with the SEC such amendments and supplements to the
Registration Statement and the prospectus used in connection therewith as may be
necessary, and to comply with the provisions of the Securities Act with respect
to the sale or other disposition of all securities proposed to be registered in
the Registration Statement until one (1) year after the Effective Time, (iii)
furnish to each Holder such number of copies of any prospectus (including any
preliminary prospectus and any amended or supplemented prospectus) in conformity
with the requirements of the Securities Act, and such other documents, as each
Holder may reasonably request in order to effect the offering and sale of the
shares of the Registrable Securities to be offered and sold, but only while
Aspect shall be required under the provisions hereof to cause the Registration
Statement to remain current.

                (d)  Notwithstanding any other provision of this Section 6.2 but
subject to Section 6.2(e), Aspect shall have the right at any time to require
that all Holders suspend further open market offers and sales of Registrable
Securities whenever, and for so long as, in the reasonable judgment of Aspect in
good faith after consultation with counsel, there is or may be in existence
material undisclosed information or events with respect to Aspect (the
"Suspension Right"). In the event Aspect exercises the Suspension Right, such
suspension will continue for the period of time reasonably necessary for
disclosure to occur at a time that is not materially

                                       26
<PAGE>
 
detrimental to Aspect and its stockholders or until such time as the information
or event is no longer material, each as determined in good faith by Aspect after
consultation with counsel. Aspect will promptly give the Stockholder
Representative notice of any such suspension, summarizing in reasonable detail
the information or events on which such suspension is based, provided that the
                                                             --------
Stockholder Representative shall maintain the confidentiality of the contents of
such summary. Aspect will use all reasonable efforts to limit the length of the
suspension to thirty (30) calendar days or less. Aspect agrees to notify the
Stockholder Representative promptly upon termination of the suspension.

                (e)  If any Holder shall propose to sell any Registrable
Securities pursuant to the Registration Statement, it shall notify the Chief
Financial Officer of Aspect of its intent to do so (including the proposed
manner and timing of all sales) at least two (2) full trading days prior to such
sale, and the provision of such notice to Aspect shall conclusively be deemed to
reestablish and reconfirm an agreement by such Holder to comply with the
registration provisions set forth in this Agreement. Unless otherwise specified
in such notice, such notice shall be deemed to constitute a representation that
any information previously supplied by such Holder expressly for inclusion in
the Registration Statement (as such information may have been superseded by
information provided subsequently) is accurate as of the date of such notice. At
any time within such two-trading-day period, Aspect may refuse to permit the
Holder to resell any Registrable Securities pursuant to the Registration
Statement; provided, however, that in order to exercise this right, Aspect must
           -----------------
deliver a certificate in writing to the Holder to the effect that a delay in
such sale is necessary because a sale pursuant to the Registration Statement in
its then current form without the addition of material, non-public information
about Aspect could constitute a violation of the federal securities laws; and
provided further, that Aspect will use all reasonable efforts to limit the delay
- ----------------
to as short a period as practicable and agrees to notify the Holder promptly
upon termination of the suspension. Notwithstanding the foregoing, Aspect will
ensure that in any event the Holders shall have at least twenty (20) trading
days (prorated for partial quarters) available to sell Registrable Securities
during each calendar quarter (or portion thereof) after the effectiveness of the
Registration Statement until the first anniversary of the Effective Time. For
any offer or sale of any of the Registrable Securities by a Holder in a
transaction that is not exempt under the Securities Act, the Holder, in addition
to complying with any other federal securities laws, shall deliver a copy of the
final prospectus (or amendment of or supplement to such prospectus) of Aspect
covering the Registrable Securities in the form furnished to the Holder by
Aspect to the purchaser of any of the Registrable Securities on or before the
settlement date for the purchase of such Registrable Securities.

                (f)  Aspect will indemnify each Holder, each of its officers and
directors and partners, and each person controlling such Holder within the
meaning of Section 15 of the Securities Act against all expenses, claims,
losses, damages or liabilities (or actions in respect thereof), including any of
the foregoing incurred in settlement of any litigation, commenced or threatened,
arising out of or based on any untrue statement (or alleged untrue statement) of
a material fact contained in any registration statement, prospectus, preliminary
prospectus, offering circular or other document, or any amendment or supplement
thereto, incident to any registration, qualification or compliance effected
pursuant to this Section 6.2, or based on any omission (or alleged omission) to
state therein a material fact required to be stated therein or necessary to make
the statements therein, in light of the circumstances in which they were made,
not

                                       27
<PAGE>
 
misleading, or any violation or any alleged violation by Aspect of any rule or
regulation promulgated under the Securities Act or the Exchange Act in
connection with any such registration, qualification or compliance, and Aspect
will reimburse each such Holder, each of its officers and directors, and each
person controlling such Holder, each such underwriter and each person who
controls any such underwriter, for any legal and any other expenses reasonably
incurred in connection with investigating, preparing or defending any such
claim, loss, damage, liability or action, as such expenses are incurred,
provided that Aspect will not be liable in any such case to the extent that any
such claim, loss, damage, liability or expense arises out of or is based on any
untrue statement or omission or alleged untrue statement or omission, made in
reliance upon and in conformity with written information furnished to Aspect by
such Holder or controlling person and specifically for use therein.

                (g)  Each Holder will, if Registrable Securities held by such
Holder are included in the securities as to which such registration is being
effected, indemnify Aspect, each of its directors and officers, each person who
controls Aspect within the meaning of Section 15 of the Securities Act, and each
other such Holder, each of its officers and directors and each person
controlling such Holder within the meaning of Section 15 of the Securities Act,
against all claims, losses, damages and liabilities (or actions in respect
thereof) arising out of or based on any untrue statement (or alleged untrue
statement) of a material fact contained in any such registration statement,
prospectus, offering circular or other document, or any omission (or alleged
omission) to state therein a material fact required to be stated therein or
necessary to make the statements therein not misleading, and will reimburse
Aspect, such other Holders, directors, officers, persons or control persons for
any legal or any other expenses reasonably incurred in connection with
investigating or defending any such claim, loss, damage, liability or action, as
such expenses are incurred, in each case to the extent, but only to the extent,
that such untrue statement (or alleged untrue statement) or omission (or alleged
omission) is made in such registration statement, prospectus, offering circular
or other document in reliance upon and in conformity with written information
furnished to Aspect by such Holder specifically for use therein.

                (h)  Each party entitled to indemnification under Section 6.2(f)
or 6.2(g) (the "Indemnified Party") shall give notice to the party required to
provide indemnification (the "Indemnifying Party") promptly after such
Indemnified Party has actual knowledge of any claim as to which indemnity may be
sought, and shall permit the Indemnifying Party to assume the defense of any
such claim or any litigation resulting therefrom, provided that counsel for the
Indemnifying Party, who shall conduct the defense of such claim or litigation,
shall be approved by the Indemnified Party (whose approval shall not
unreasonably be withheld), and the Indemnified Party may participate in such
defense at such party's expense; provided, however, that an Indemnified Party
                                 -----------------
(together with all other Indemnified Parties which may be represented without
conflict by one counsel) shall have the right to retain one separate counsel,
with the fees and expenses to be paid by the Indemnifying Party, if
representation of such Indemnified Party by the counsel retained by the
Indemnifying Party would be inappropriate due to differing or potentially
differing interests between such Indemnified Party and any other party
represented by such counsel in such proceeding. The failure of any Indemnified
Party to give notice as provided herein shall not relieve the Indemnifying Party
of its obligations under Section 6.2(f) or 6.2(g) unless the failure to give
such notice is materially prejudicial to an Indemnifying Party's ability to
defend such action. No Indemnifying Party, in the defense of any such claim or
litigation, shall,

                                       28
<PAGE>
 
except with the consent of each Indemnified Party, consent to entry of any
judgment or enter into any settlement which does not include as an unconditional
term thereof the giving by the claimant or plaintiff to such Indemnified Party
of a release from all liability in respect to such claim or litigation.

                (i)  Aspect shall pay all of the out-of-pocket expenses, other
than underwriting discounts and commissions, if any, incurred in connection with
any registration of Registrable Securities pursuant to this Section 6.2,
including, without limitation, all registration and filing fees, printing
expenses, transfer agents' and registrars' fees, and the reasonable fees and
disbursements of Aspect's outside counsel and independent accountants.

        Section 6.3 Consents. Each of Aspect and Cadis shall use all reasonable
                    --------
efforts to obtain all necessary consents, waivers and approvals under any of
Aspect's or Cadis's material agreements, contracts, licenses or leases as may be
necessary or advisable to consummate the Merger and the other transactions
contemplated by this Agreement.

        Section 6.4 Nasdaq Quotation. Aspect agrees to continue the quotation of
                    ----------------
Aspect Common Stock on the NNM during the term of this Agreement.

        Section 6.5 Access to Information. Upon reasonable notice, Cadis shall
                    ---------------------
afford to the officers, employees, accountants, counsel and other
representatives of Aspect, reasonable access, during normal business hours
during the period prior to the Effective Time, to all its properties, books,
contracts, commitments and records and, during such period, Cadis shall furnish
promptly to Aspect or its representatives all other information concerning its
business, properties and personnel as such other party may reasonably request.
Unless otherwise required by law, the parties will treat any such information
which is nonpublic in confidence in accordance with the Joint Confidentiality
Agreement dated October 31, 1997 (the "Confidentiality Agreement") between
Aspect and Cadis, which Confidentiality Agreement shall continue in full force
and effect in accordance with its terms. No information or knowledge obtained in
any investigation pursuant to this Section 6.5 shall affect or be deemed to
modify any representation or warranty contained in this Agreement or the
conditions to the obligations of the parties to consummate the Merger.

        Section 6.6 Information Statement; Other Filings; Board Recommendations.
                    -----------------------------------------------------------
Promptly after the execution of this Agreement, Cadis and Aspect will prepare
the Information Statement, and Cadis will use its best efforts to distribute the
Information Statement to the stockholders of Cadis within three business days
after such execution. As promptly as practicable after the date of this
Agreement, Cadis and Aspect will prepare and file any other filings required
under the Exchange Act, the Securities Act or any other federal, foreign or
state securities or blue sky laws relating to the Merger and the transactions
contemplated by this Agreement (the "Other Filings"). The Information Statement
and the Other Filings will comply in all material respects with all applicable
requirements of law and the rules and regulations promulgated thereunder,
including Regulation D promulgated under the Securities Act. Whenever any event
occurs which is required to be set forth in an amendment or supplement to the
Information Statement or any Other Filing, Cadis or Aspect, as the case may be,
will promptly inform the other of such occurrence and cooperate in making any
appropriate amendment or supplement, and/or mailing to stockholders of Cadis,
such amendment or supplement. The material submitted to Cadis's stockholders for

                                       29
<PAGE>
 
purposes of soliciting such stockholders' consents to the Merger shall be
subject to review and approval by Aspect and include information regarding
Cadis, the terms of the Merger and this Agreement and the unanimous
recommendation of the Board of Directors of Cadis in favor of the Merger and
this Agreement.

        Section 6.7 Legal Conditions to Merger. Each of Aspect and Cadis will
                    --------------------------
take all reasonable actions necessary to comply promptly with all legal
requirements which may be imposed on itself with respect to the Merger (which
actions shall include, without limitation, furnishing all information in
connection with approvals of or filings with any Governmental Entity) and will
promptly cooperate with and furnish information to each other in connection with
any such requirements imposed upon either of them or any of their Subsidiaries
in connection with the Merger. Each of Aspect and Cadis will take all reasonable
actions necessary to obtain (and will cooperate with each other in obtaining)
any consent, authorization, order or approval of, or any exemption by, any
Governmental Entity or other third party, required to be obtained or made by
Cadis, Aspect or any of their Subsidiaries in connection with the Merger or the
taking of any action contemplated thereby or by this Agreement and to enable the
Closing to occur no later than December 1, 1997, but in any event as promptly as
practicable.

        Section 6.8 Public Disclosure. Aspect and Cadis shall consult with each
                    -----------------
other before issuing any press release or otherwise making any public statement
with respect to the Merger or this Agreement and shall not issue any such press
release or make any such public statement prior to such consultation, except as
may be required by law or by the rules of NNM (provided that in such case Aspect
                                               --------
shall use its best efforts to obtain Cadis's consent to such press release or
statement, which consent will not be unreasonably withheld).

        Section 6.9 Tax-Free Reorganization. Aspect and Cadis shall each use its
                    -----------------------
best efforts to cause the Merger to be treated as a reorganization within the
meaning of Section 368(a) of the Code. Aspect and Cadis agree to make, and Cadis
agrees to use its best efforts to cause its stockholders to make, reasonable
representations as requested by counsel to Aspect and Cadis with respect to the
rendering of the opinions required pursuant to Section 7.1(f).

        Section 6.10 Identification of Affiliates. Concurrent with the execution
                     ----------------------------
and delivery of this Agreement, Aspect and Cadis will provide each other with a
list of those persons who are, in Aspect's or Cadis's respective reasonable
judgment, "affiliates" of Aspect or Cadis, respectively, within the meaning of
Rule 145 promulgated under the Securities Act ("Rule 145"). (Each such person
who is an "affiliate" of Aspect or Cadis within the meaning of Rule 145 is
referred to herein as an "Affiliate.") Aspect and Cadis shall provide each
other such information and documents as Cadis or Aspect shall reasonably request
for purposes of reviewing such list and shall notify the other party in writing
regarding any change in the identity of its Affiliates prior to the Closing
Date.

        Section 6.11 Pooling Accounting. Aspect and Cadis shall each use its
                     ------------------
best efforts to cause the business combination to be effected by the Merger to
be accounted for as a pooling of interests. Each of Aspect and Cadis shall use
its best efforts to cause its respective Affiliates (as defined in Section 6.10)
not to take any action that would adversely affect the ability of Aspect to
account for the business combination to be effected by the Merger as a pooling
of interests. 

                                       30
<PAGE>
 
Concurrent with the execution and delivery of this Agreement, Cadis shall
deliver to Aspect from each of the Affiliates of Cadis, an executed Affiliate
Agreement, in form and substance satisfactory to Aspect and Cadis, by which such
Affiliate of Cadis or Aspect agrees to comply with the applicable requirements
of Rule 145 and of the accounting requirements related to pooling of interests
accounting treatment ("Affiliate Agreement"). Aspect shall be entitled to place
appropriate legends on the certificates evidencing any Aspect Common Stock to be
received by such Affiliates of Cadis pursuant to the terms of this Agreement,
and to issue appropriate stop transfer instructions to the transfer agent for
the Aspect Common Stock, consistent with the terms of the Affiliate Agreements.

        Section 6.12 Stock Options.
                     -------------     

                (a)  At the Effective Time, each outstanding Cadis Option,
whether vested or unvested, shall be deemed to constitute an option (an "Assumed
Option") to acquire, on the same terms and conditions as were applicable under
the Cadis Option, such number of shares of Aspect Common Stock as the holder of
such Cadis Option would have been entitled to receive pursuant to the Merger had
such holder exercised such option in full (without regard to vesting)
immediately prior to the Effective Time (rounded down to the nearest whole
share), at a price per share (rounded up to the nearest whole cent) equal to (x)
the aggregate exercise price of Cadis Common Stock otherwise purchasable
pursuant to such Cadis Option immediately prior to the Effective Time divided by
(y) the number of full shares of Aspect Common Stock deemed purchasable pursuant
to such Cadis Option in accordance with the foregoing.

                (b)  As soon as practicable after the Effective Time, Aspect
shall deliver to the participants in the Cadis Option Plan an appropriate notice
setting forth such participants' rights pursuant thereto and the grants pursuant
to the Cadis Option Plan shall continue in effect on the same terms and
conditions (subject only to the adjustments required by this Section 6.12 after
giving effect to the Merger). Aspect shall comply with the terms of the Cadis
Option Plan and ensure, to the extent required by and subject to the provisions
of the Cadis Option Plan, that the Assumed Options representing assumed Cadis
Options which qualified as incentive stock options prior the Effective Time
continue to qualify as incentive stock options after the Effective Time.

                (c)  Aspect shall take all corporate action necessary to reserve
for issuance a sufficient number of shares of Aspect Common Stock for delivery
under the Assumed Options. As soon as practicable after the Effective Time, but
in any event on or prior to the date on which Aspect publishes financial
statements covering at least thirty (30) days' results of combined operations of
Aspect and Cadis, Aspect shall file a registration statement on Form S-8 (or any
successor or other appropriate forms), with respect to the shares of Aspect
Common Stock subject to the Assumed Options and shall use its best efforts to
maintain the effectiveness of such registration statement or registration
statements (and maintain the current status of the prospectus or prospectuses in
connection therewith) for so long as the Assumed Options remain outstanding.
With respect to those individuals who, subsequent to the Merger, will be subject
to the reporting requirements under Section 16(a) of the Exchange Act, where
applicable, Aspect shall administer the Assumed Options in a manner that
complies with Rule 16b-3 promulgated under the Exchange Act to the extent the
Cadis Option Plan complied with such rule prior to the Merger.

                                       31
<PAGE>
 
        Section 6.13 Employee Stock Purchase Plan. Employees of Cadis as of the
                     ----------------------------
Effective Time shall be permitted to participate in the Aspect Purchase Plan
commencing on the first enrollment date following the Effective Time, subject to
compliance with the eligibility provisions of such plan.

        Section 6.14 Brokers or Finders. Each of Aspect and Cadis represents, as
                     ------------------
to itself, its Subsidiaries and its Affiliates, that no agent, broker,
investment banker, financial advisor or other firm or person is or will be
entitled to any broker's or finder's fee or any other commission or similar fee
in connection with any of the transactions contemplated by this Agreement except
Hambrecht & Quist LLC, financial advisor to Cadis, whose fees will be paid by
Cadis in accordance with Cadis's agreement with such firm (a copy of which has
been delivered by Cadis to Aspect prior to the date of this Agreement), and BT
Alex. Brown Incorporated, financial advisor to Aspect, whose fees and expenses
will be paid by Aspect in accordance with Aspect's agreement with such firm (a
copy of which has been delivered by Aspect to Cadis prior to the date of this
Agreement), in each case subject to the provision of Section 6.16, and each of
Aspect and Cadis agrees to indemnify and hold the other harmless from and
against any and all claims, liabilities or obligations with respect to any other
fees, commissions or expenses asserted by any person on the basis of any act or
statement alleged to have been made by such party or its Affiliate.

        Section 6.15 Additional Agreements; Reasonable Efforts. Subject to the
                     -----------------------------------------
terms and conditions of this Agreement, each of the parties agrees to use all
reasonable efforts to take, or cause to be taken, all action and to do, or cause
to be done, all things necessary, proper or advisable under applicable laws and
regulations to consummate and make effective the transactions contemplated by
this Agreement, including cooperating fully with the other party, including by
provision of information. In case at any time after the Effective Time any
further action is necessary or desirable to carry out the purposes of this
Agreement or to vest the Surviving Corporation with full title to all
properties, assets, rights, approvals, immunities and franchises of either of
the Constituent Corporations, the proper officers and directors of each party to
this Agreement shall take all such necessary action.

        Section 6.16 Expenses. The parties shall each pay their own legal,
                     --------
accounting and financial advisory fees and other out-of-pocket expenses related
to the negotiation, preparation and carrying out of this Agreement and the
transactions herein contemplated. In the event the Merger is consummated, legal,
accounting and financial advisory fees and expenses and other out-of-pocket
expenses incurred by Cadis relating to the negotiation, preparation and carrying
out of this Agreement and the transactions herein contemplated, shall be borne
by the Surviving Corporation. Cadis agrees that Aspect may submit an
Indemnification Claim for a Aspect Loss (both as defined in Section 9.3) for the
amount, if any, by which Cadis's legal, accounting and financial advisory fees
relating to the transactions contemplated by this Agreement exceed $1,000,000
and that such claim shall be paid by the Escrow Agent without regard to and
without affecting the Floor (as defined in Section 9.2(b)).

        Section 6.17 Voting Agreements. Concurrently with the execution and
                     -----------------
delivery of this Agreement, Cadis will cause the persons and entities listed on
Schedule 6.17 to execute Voting

                                       32
<PAGE>
 
Agreements in the form attached hereto as Exhibit B agreeing, among other
                                          ---------
things, to vote in favor of the Merger.

        Section 6.18 Noncompetition Agreements. In addition to the persons named
                     -------------------------
in Section 7.22(g), Cadis shall use reasonable efforts to assist Aspect in
causing (i) Dan Ellis, (ii) Lila Peterson and (iii) each of the employees of
Cadis performing software development, sales, professional and data services,
product marketing and supply parterships and alliance functions, including, but
not limited to, any employees in the organizations reporting to Mr. Ellis,
George Heyworth, Bruce Jacquemard, Larry Lenhart and Bob Merlo to enter into a
Noncompetition Agreement (as defined in Section 7.22(g)).

        Section 6.19 Updating Schedules. After execution of this Agreement and
                     ------------------
prior to the Effective Time, each of Cadis and Aspect will promptly supplement
or amend their respective Disclosure Schedules to reflect any matter that, if
existing, occurring or known on the date set forth or discussed in such
Disclosure Schedules, should have been so disclosed, or which is necessary to
correct any information in such Disclosure Schedules which was or has been
rendered inaccurate thereby; provided, however, that for the purpose of
                             -----------------
determining the rights and obligations of the parties under this Agreement, any
such supplemental or amended disclosure by either party shall not be deemed to
have been disclosed as of the date hereof or to constitute part of or an
amendment or supplement to such party's Disclosure Schedule or to cure any
breach or inaccuracy of a representation or warranty unless so agreed to in
writing by the other party, which agreement shall not be unreasonably withheld
if such supplemental or amended disclosure is not reasonably likely,
individually or in the aggregate, to result in a Material Adverse Effect on the
party making such disclosure.
 

                                  ARTICLE VII


                             CONDITIONS TO MERGER

        Section 7.1 Conditions to Each Party's Obligation to Effect the Merger.
                    ----------------------------------------------------------
The respective obligations of each party to this Agreement to effect the Merger
shall be subject to the satisfaction on or prior to the Closing Date of the
following conditions:

                (a)  This Agreement and the Merger shall have been approved and
adopted by the affirmative vote of the holders of the requisite number of
outstanding shares of Cadis Capital Stock.

                (b)  All authorizations, consents, orders or approvals of, or
declarations or filings with, or expirations of waiting periods imposed by, any
Governmental Entity the failure of which to obtain or comply with would be
reasonably likely to have a Material Adverse Effect on Aspect or Cadis or a
Material Adverse Effect on the consummation of the transactions contemplated
hereby shall have been filed, occurred or been obtained.

                (c)  No temporary restraining order, preliminary or permanent
injunction or other order issued by any court of competent jurisdiction or other
legal or regulatory restraint or

                                       33
<PAGE>
 
prohibition preventing the consummation of the Merger or limiting or restricting
Aspect's conduct or operation of the business of Aspect or Cadis after the
Merger shall have been issued, nor shall any proceeding brought by a domestic
administrative agency or commission or other domestic Governmental Entity
seeking any of the foregoing be pending; nor shall there be any action taken, or
any statute, rule, regulation or order enacted, entered, enforced or deemed
applicable to the Merger which makes the consummation of the Merger illegal.

                (d)  Aspect shall have received a letter from Ernst & Young, LLP
dated within two business days prior to the Effective Time, regarding its
concurrence with Aspect's management as to the appropriateness of pooling of
interests accounting for the Merger under Accounting Principles Board Opinion
No. 16 and applicable SEC regulations and releases, if the Merger is consummated
in accordance with this Agreement.

                (e)  Cadis shall have received a letter from Arthur Andersen
LLP, dated within two business days prior to the Effective Time, stating that it
knows of nothing with respect to Cadis that would prohibit Aspect from
accounting for the Merger as a pooling of interests.

                (f)  Aspect shall have received a written opinion from its
counsel, Gray Cary Ware & Freidenrich, and Cadis shall have received a written
opinion from its counsel, Ireland, Stapleton, Pryor & Pascoe P.C., in form and
substance reasonably satisfactory to both parties, to the effect that the Merger
will be treated for federal income tax purposes as a tax-free reorganization
within the meaning of Section 368(a) of the Code. In rendering such opinions,
counsel may rely upon reasonable representations and certificates of Aspect,
Sub, Cadis and their respective directors, officers and stockholders.

                (g)  At least three calendar days shall have passed since the
date when all of the stockholders of Cadis who are not "accredited investors" as
defined in Regulation D (the "Nonaccredited Cadis Stockholders") can reasonably
be expected to have received the Information Statement.

        Section 7.2 Additional Conditions to Obligations of Aspect and Sub. The
                    ------------------------------------------------------  
obligations of Aspect and Sub to effect the Merger are subject to the
satisfaction of each of the following conditions, any of which may be waived in
writing exclusively by Aspect and Sub:

                (a)  The representations and warranties of Cadis set forth in
this Agreement shall be true and correct in all material respects as of the date
of this Agreement and as of the Closing Date as though made on and as of the
Closing Date, except (i) for changes contemplated by this Agreement, (ii) that
representations and warranties which specifically relate to a particular date or
period shall be true and correct as of such date and for such period and (iii)
where the failure of any such representation or warranty to be true and correct
on and as of the Closing Date, individually and in the aggregate, would not be
reasonably likely to have a Material Adverse Effect on Cadis, or a material
adverse effect upon the consummation of the transactions contemplated hereby;
and Aspect shall have received a certificate to such effect signed on behalf of
Cadis by the chief executive officer of Cadis.

                                       34
<PAGE>
 
                (b)  Cadis shall have performed in all material respects all
obligations required to be performed by it under this Agreement at or prior to
the Closing Date, and Aspect shall have received a certificate to such effect
signed on behalf of Cadis by the chief executive officer of Cadis.

                (c)  Aspect shall have received from Cadis written evidence that
the execution, delivery and performance of Cadis's obligations under this
Agreement have been duly and validly approved and authorized by the Board of
Directors and the stockholders of Cadis.

                (d)  Aspect shall have received all permits and other
authorizations required under applicable state blue sky laws for the issuance of
shares of Aspect Common Stock pursuant to the Merger.

                (e)  Aspect shall have been furnished with evidence satisfactory
to it of the consent or approval of those persons whose consent or approval
shall be required in connection with the Merger under the material contracts of
Cadis, as set forth on Schedule 7.2(e) hereto.
                       ---------------

                (f)  Aspect shall have received from each of the Affiliates of
Cadis an executed Affiliate Agreement.

                (g)  Thomas Kavanaugh, Janet Eden-Harris, George Heyworth, Bruce
Jacquemard, Blair LaCorte, Larry Lenhart, and Bob Merlo shall have entered into
Noncompetition Agreements in the form of Exhibit C hereto ("Noncompetition
                                         ---------
Agreements").

                (h)  The Merger shall have been approved by the affirmative vote
of the holders of not less than ninety-three percent (93%) of the outstanding
shares of Cadis Capital Stock voting on a common-equivalent basis.

                (i)  Aspect shall have received a legal opinion from Ireland,
Stapleton, Pryor & Pascoe, P.C., counsel to Cadis, substantially in the form of
Exhibit D hereto.
- ---------

                (j)  The Escrow Agreement shall have been executed and delivered
by the Stockholder Representative and the Escrow Agent.

                (k)  The holders of at least eighty percent (80%) of the shares
of Aspect Common Stock that are issued and outstanding as of the date of this
Agreement and who are receiving shares of Aspect Common Stock in the Merger
shall have executed and delivered to Aspect either a Stockholder Agreement in
the form attached hereto as Exhibit E (the "Stockholder Agreement") or an
                            ---------
Affiliate Agreement.

                (l)  Aspect shall have been furnished with evidence satisfactory
to it of the termination of (i) the Fourth Amended and Restated Registration
Rights Agreement dated August 13, 1996 among Cadis and certain holders of Cadis
Preferred Stock, (ii) the Fourth Amended and Restated Stockholders Agreement
dated August 13, 1996 among Cadis and certain holders of Cadis Common Stock and
Cadis Preferred Stock, (iii) the Series F Preferred Stock Purchase Agreement
dated August 13, 1997 among Cadis and certain holders of Cadis Preferred Stock
and

                                       35
<PAGE>
 
(iv) the letter agreements, each dated August 13, 1996, between Cadis and
each of Norwest Equity Partners V and Chancellor Venture Capital II, L.P.

        Section 7.3 Additional Conditions to Obligations of Cadis. The
                    ---------------------------------------------
obligation of Cadis to effect the Merger is subject to the satisfaction of each
of the following conditions, any of which may be waived, in writing, exclusively
by Cadis:

                (a)  The representations and warranties of Aspect and Sub set
forth in this Agreement shall be true and correct in all material respects as of
the date of this Agreement and (except to the extent such representations speak
as of an earlier date) as of the Closing Date as though made on and as of the
Closing Date, except for (i) changes contemplated by this Agreement and (ii)
where the failure to be true and correct would not be reasonably likely to have
a Material Adverse Effect on Aspect and its Subsidiaries, taken as a whole, or a
material adverse effect upon the consummation of the transactions contemplated
hereby; and Cadis shall have received a certificate to such effect signed on
behalf of Aspect by the chief financial officer of Aspect.

                (b)  Aspect and Sub shall have performed in all material
respects all obligations required to be performed by them under this Agreement
at or prior to the Closing Date, and Cadis shall have received a certificate to
such effect signed on behalf of Aspect by the chief financial officer of Aspect.

                (c)  Cadis shall have received from Aspect and Sub written
evidence that the execution, delivery and performance of Aspect's and Sub's
obligations under this Agreement have been duly and validly approved and
authorized by the Boards of Directors of Aspect and Sub.

                (d)  The Escrow Agreement shall have been and delivered by
Aspect and the Escrow Agent.
 

                                  ARTICLE VIII

                           TERMINATION AND AMENDMENT

        Section 8.1 Termination. This Agreement may be terminated at any time
                    -----------
prior to the Effective Time (with respect to Sections 8.1(b) through 8.1(g), by
written notice by the terminating party to the other party):

                (a)  by the mutual written consent of Aspect and Cadis;

                (b)  by either Aspect or Cadis if the Merger shall not have been
consummated by December 8, 1997 (provided that the right to terminate this
Agreement under this Section 8.1(b) shall not be available to any party whose
failure to fulfill any obligation under this Agreement has been the cause of or
resulted in the failure of the Merger to occur on or before such date);

                                       36
<PAGE>
 
                (c)  by either Aspect or Cadis if a court of competent
jurisdiction or other Governmental Entity shall have issued a nonappealable
final order, decree or ruling or taken any other action, in each case having the
effect of permanently restraining, enjoining or otherwise prohibiting the
Merger, except, if the party relying on such order, decree or ruling or other
action has not complied with its obligations under Section 6.7 of this
Agreement;

                (d)  by Aspect if the Board of Directors of Cadis shall have
withdrawn or modified its recommendation of this Agreement or the Merger in a
manner adverse to Aspect or shall have publicly announced or disclosed to any
third party its intention to do any of the foregoing;

                (e)  by Aspect if the stockholders of Cadis shall fail to
approve this Agreement and the Merger;

                (f)  by Aspect or Cadis, if there has been a material breach of
any representation, warranty, covenant or agreement on the part of the other
party set forth in this Agreement, which breach (i) causes the conditions set
forth in Section 7.2(a) or (b) (in the case of termination by Aspect) or 7.3(a)
or (b) (in the case of termination by Cadis) not to be satisfied and (ii) shall
not have been cured within ten (10) business days following receipt by the
breaching party of written notice of such breach from the other party; or

                (g)  by Aspect if the condition specified in Section 7.2(i) is
not satisfied within thirty days from the date the Information Statement shall
have been sent to the Nonaccredited Cadis Stockholders.

        Section 8.2 Effect of Termination. In the event of termination of this
                    ---------------------
Agreement as provided in Section 8.1, there shall be no liability or obligation
on the part of Aspect, Cadis, Sub or their respective officers, directors,
stockholders or Affiliates, except to the extent that such termination results
from the willful breach by a party of any of its representations, warranties or
covenants set forth in this Agreement; provided that the provisions of Sections
6.14 and 6.16 of this Agreement and the confidentiality provisions set forth
herein shall remain in full force and effect and survive any termination of this
Agreement.

        Section 8.3 Amendment. This Agreement may be amended by the parties 
                    ---------
hereto, by action taken or authorized by their respective Boards of Directors,
at any time before or after approval of the matters presented in connection with
the Merger by the stockholders of Cadis, but, after any such approval, no
amendment shall be made which by law requires further approval by such
stockholders without such further approval. This Agreement may not be amended
except by an instrument in writing signed on behalf of each of the parties
hereto.

        Section 8.4 Extension; Waiver. At any time prior to the Effective Time,
                    -----------------
the parties hereto, by action taken or authorized by their respective Boards of
Directors, may, to the extent legally allowed, (i) extend the time for the
performance of any of the obligations or other acts of the other parties hereto,
(ii) waive any inaccuracies in the representations and warranties 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

                                       37
<PAGE>
 
to any such extension or waiver shall be valid only if set forth in a written
instrument signed on behalf of such party.
 

                                   ARTICLE IX


                          ESCROW AND INDEMNIFICATION

        Section 9.1 Survival of Representations and Warranties. If the Merger
                    ------------------------------------------
occurs, all of the representations and warranties contained in this Agreement
shall survive the Closing Date (except that representations and warranties that
specifically relate to a particular date or period shall be true and correct as
of such date and for such period) and shall continue in full force and effect
until the date of the first anniversary of the Closing Date (the "Termination
Date"), except as to representations and warranties of a nature such that a
breach should be discovered during the first audit of combined operations, which
representations and warranties will survive only until the release of the
audited results of such combined operations.

        Section 9.2 Indemnification by Cadis Stockholders.
                    -------------------------------------

                (a) Subject to the terms and conditions contained herein, each
of the stockholders of Cadis shall indemnify, defend and hold harmless Aspect,
its officers, directors, employees and attorneys, all Subsidiaries and
Affiliates of Aspect, and the respective officers, directors, employees and
attorneys of such entities (all such persons and entities being collectively
referred to as the "Aspect Group") from, against, for and in respect of any
and all losses, damages, costs and expenses (including reasonable legal fees and
expenses) which any member of the Aspect Group may sustain or incur which are
caused by or arise out of (i) any inaccuracy in or breach of any of the
representations, warranties or covenants made by Cadis in this Agreement,
including the Cadis Disclosure Schedule, or (ii) any breach by the stockholders
of Cadis or the Stockholder Representative of this Article IX or the Escrow
Agreement (collectively, "Aspect Losses"). References to stockholders of
Cadis, Cadis stockholders or words of similar import in this Article IX shall be
deemed to be references to the persons who were stockholders of Cadis
immediately prior to the Effective Time.

                (b)  No stockholder of Cadis shall be required to indemnify any
member of the Aspect Group for any Aspect Losses until and only to the extent
that the aggregate amount of all Aspect Losses under all claims shall exceed
$125,000 (the "Floor"), and further, no stockholder of Cadis shall be liable for
any individual Aspect Loss that is less than $5,000 (a "De Minimis Claim"), and
                                                        ----------
no such De Minimis Claims shall be counted against the Floor in determining the
        ----------
dollar amount of the Floor that remains available under this paragraph (b).
Except as specifically provided in Section 9.2(d), the maximum aggregate
liability of the stockholders of Cadis pursuant to Section 9.2(a) shall in no
event exceed the value of the Escrow Shares, as determined pursuant to Section 2
of the Escrow Agreement.

                (c)  The obligation of the stockholders of Cadis to indemnify
members of the Aspect Group for a Aspect Loss under this Article IX is subject
to the condition that the

                                       38
<PAGE>
 
Stockholder Representative shall have received written notice of an
Indemnification Claim (as defined in Section 9.3 hereof) for such Aspect Loss on
or before the Termination Date.

                (d)  The provisions of Section 9.2(b) and (c) above and 9.6
below shall not limit, in any manner, any remedy at law or in equity to which
any member of the Aspect Group shall be entitled against Cadis or any
stockholder of Cadis as a result of willful fraud or intentional
misrepresentation by Cadis, any stockholder of Cadis or any of their respective
representatives.

                (e)  Except as set forth in Section 9.2(d), each stockholder of
Cadis shall be liable for Aspect Losses only to the extent of such stockholder's
Proportionate Interest (as defined in the Escrow Agreement) in the aggregate
Escrow Shares.

        Section 9.3    Procedures for Indemnification.
                       ------------------------------

                (a) As used in this Article IX, the term "Indemnitee" means the
member or members of the Aspect Group seeking indemnification hereunder.

                (b) A claim for indemnification hereunder (an "Indemnification
Claim") shall be made by Indemnitee by delivery of a written notice to the
Stockholder Representative and the Escrow Agent requesting indemnification and
specifying the basis on which indemnification is sought in reasonable detail
(and shall include relevant documentation related to the Indemnification Claim),
the amount of the asserted Aspect Losses and, in the case of a Third Party Claim
(as defined in Section 9.4), containing (by attachment or otherwise) such other
information as Indemnitee shall have concerning such Third Party Claim.

                (c) If the Indemnification Claim involves a Third Party Claim,
the procedures set forth in Section 9.4 hereof shall be observed by
Indemnitee and the Stockholder Representative.

                (d) The Escrow Agent will not release any Escrow Shares held in
the Escrow Account pursuant to an Indemnification until such Indemnification
Claim has been resolved in accordance with Section 9.6 below.

        Section 9.4 Defense of Third Party Claims. Should any claim be made or
                    -----------------------------
suit or proceeding be instituted against an Indemnitee which, if prosecuted
successfully, would be a matter for which such Indemnitee is entitled to
indemnification under this Article IX (a "Third Party Claim"), the obligations
and liabilities of the parties hereunder with respect to such Third Party Claim
shall be subject to the following terms and conditions:

                (a) Indemnitee shall give the Stockholder Representative and
the Escrow Agent written notice of any such Third Party Claim promptly after
receipt by Indemnitee of notice thereof, and the Stockholder Representative may,
subject to the prior written consent of Aspect, undertake control of the defense
thereof by counsel of its own choosing reasonably acceptable to Indemnitee.
Indemnitee may participate in the defense through its own counsel at its own
expense. If, however, the Stockholder Representative fails or refuses to
undertake the

                                       39
<PAGE>
 
defense of such Third Party Claim within fifteen (15) days after written notice
of such claim has been delivered to the Stockholder Representative by
Indemnitee, Indemnitee shall have the right to undertake the defense, compromise
and, subject to Section 9.5, settlement of such Third Party Claim with counsel
of its own choosing. In the circumstances described in the preceding sentence,
Indemnitee shall, promptly upon its assumption of the defense of such Third
Party Claim, make an Indemnification Claim as specified in Section 9.3(b), which
shall be deemed an Indemnification Claim that is not a Third Party Claim for the
purposes of the procedures set forth herein. Failure of Indemnitee to furnish
written notice to the Stockholder Representative or the Escrow Agent of a Third
Party Claim shall not release the stockholders of Cadis from their obligations
hereunder, except to the extent they are prejudiced by such failure.

                (b) Indemnitee and the Stockholder Representative shall
cooperate with each other in all reasonable respects in connection with the
defense of any Third Party Claim, including making available records relating to
such claim and furnishing employees of Indemnitee as may be reasonably necessary
for the preparation of the defense of any such Third Party Claim or for
testimony as witness in any proceeding relating to such claim.

                (c) Unless the Stockholder Representative has failed to fulfill
its obligations under this Article IX, no settlement by Indemnitee of a Third
Party Claim shall be made without the prior written consent by or on behalf of
the Stockholder Representative, which consent shall not be unreasonably withheld
or delayed. If the Stockholder Representative has assumed the defense of a Third
Party Claim as contemplated by this Section 9.4, no settlement of such Third
Party Claim may be made by the Stockholder Representative without the prior
written consent by or on behalf of Indemnitee, which consent shall not be
unreasonably withheld or delayed.

        Section 9.5 Manner of Indemnification.
                    -------------------------

                (a) To provide a fund against which members of the Aspect Group
may assert claims of indemnification under this Article IX, the Escrow Shares
shall be withheld and deposited into Escrow pursuant to the Escrow Agreement in
accordance with the provisions of Section 2.3 hereof. The Escrow Shares so
deposited shall be held and distributed in accordance with the Escrow Agreement.

                (b) Each claim for indemnification asserted against the
stockholders of Cadis pursuant to this Article IX shall be made only in
accordance with the Escrow Agreement, subject to the provisions of Section
9.2(d) hereof.

        Section 9.6 Stockholder Representative. For purposes of this Agreement
                    --------------------------
the stockholders of Cadis, without any further action on the part of any such
stockholder, shall be deemed to have consented to the appointment of Carl D.
Carman as the representative of such stockholders (the "Stockholder
Representative"), as the attorney-in-fact for and on behalf of each such
stockholder, and the taking by the Stockholder Representative of any and all
actions and the making of any decisions required or permitted to be taken by him
under this Agreement, including, without limitation, the exercise of the power
to (i) execute the Escrow Agreement, (ii) authorize delivery to Aspect of the
Escrow Shares, or any portion thereof, in satisfaction of Indemnification
Claims, (iii) agree to, negotiate, enter into settlements and compromises of and
comply with orders of courts and awards of arbitrators with respect to such
Indemnification Claims, (iv) resolve any Indemnification Claims and (v) take all
actions necessary in the judgment of the Stockholder 

                                       40
<PAGE>
 
Representative for the accomplishment of the foregoing and all of the other
terms, conditions and limitations of this Agreement and the Escrow Agreement.
Accordingly, the Stockholder Representative has unlimited authority and power to
act on behalf of each stockholder of Cadis with respect to this Agreement and
the Escrow Agreement and the disposition, settlement or other handling of all
Indemnification Claims, rights or obligations arising from and taken pursuant to
this Agreement. The stockholders of Cadis will be bound by all actions taken by
the Stockholder Representative in connection with this Agreement, and Aspect
shall be entitled to rely on any action or decision of the Stockholder
Representative. The Stockholder Representative will incur no liability with
respect to any action taken or suffered by him in reliance upon any notice,
direction, instruction, consent, statement or other document believed by him to
be genuine and to have been signed by the proper person (and shall have no
responsibility to determine the authenticity thereof), nor for any other action
or inaction, except his own willful misconduct, bad faith or gross negligence.
In all questions arising under this Agreement or the Escrow Agreement, the
Stockholder Representative may rely on the advice of counsel, and the
Stockholder Representative will not be liable to anyone for anything done,
omitted or suffered in good faith by the Stockholder Representative based on
such advice. The Stockholder Representative will not be required to take any
action involving any expense unless the payment of such expense is made or
provided for in a manner satisfactory to him. At any time during the term of the
Escrow Agreement, holders of a majority of the Escrow Shares can appoint a new
Stockholder Representative by written consent by sending notice and a copy of
the written consent appointing such new Stockholder Representative signed by
holders of a majority of the Escrow Shares to Aspect and the Escrow Agent. Such
appointment will be effective upon the later of the date indicated in the
consent or the date such consent is received by Aspect and the Escrow Agent.

                                   ARTICLE X


                             GENERAL PROVISIONS

        Section 10.1 Notices. All notices and other communications hereunder
                     -------
shall be in writing and shall be deemed given if delivered personally or by
commercial delivery service, or within seventy-two (72) hours after being mailed
by registered or certified mail (return receipt requested) or sent via facsimile
(with confirmation of receipt) to the parties at the following addresses (or at
such other address for a party as shall be specified by like notice):

                (a)  if to Aspect, to:

                     Aspect Development, inc.
                     1300 Charleston Road
                     Mountain View, CA 94043
                     Attention: President
                     Fax:  (650) 938-1377
                     Tel:  (650) 428-2700

                                       41
<PAGE>
 
                     with a copy to:

                     Gray Cary Ware & Freidenrich
                     400 Hamilton Avenue
                     Palo Alto, CA 94301
                     Attention: James M. Koshland, Esq.
                     Fax:  (650) 327-3699
                     Tel:  (650) 328-6561
 
                (b)  if to Cadis, to

                     Cadis, Inc.
                     5700 Flatiron Parkway
                     Boulder, CO 80301
                     Attention: President
                     Fax: (303) 440-5309
                     Tel: (303) 440-4363
 
                     with a copy to:

                     Ireland, Stapleton, Pryor & Pascoe, P.C.
                     1575 Broadway, Suite 2600
                     Denver, CO 80202
                     Attention: John G. Lewis, Esq.
                     Fax: (303) 623-2700
                     Tel: (303) 623-2062

                (c)  if to the Stockholder Representative, to

                     Carl D. Carman
                     885 Arapahoe
                     Boulder, CO 80302
                     Fax: (303) 442-8525
                     Tel: (303) 442-5151
 
                     with a copy to:
 
                     Ireland, Stapleton, Pryor & Pascoe P.C.
                     1575 Broadway, Suite 2600
                     Denver, CO 80202
                     Attention: John G. Lewis, Esq.
                     Fax: (303) 623-2700
                     Tel: (303) 623-2062

                                       42
<PAGE>
 
        Section 10.2 Interpretation. When a reference is made in this Agreement
                     --------------
to an Article or Section, such reference shall be to an Article or Section of
this Agreement unless otherwise indicated. The words "include," "includes" and
"including" when used herein shall be deemed in each case to be followed by the
words "without limitation." The phrase "made available" in this Agreement shall
mean that the information referred to has been made available if requested by
the party to whom such information is to be made available. The phrases "the
date of this Agreement," "the date hereof," and terms of similar import, unless
the context otherwise requires, shall be deemed to refer to November 18, 1997.
The table of contents and headings contained in this Agreement are for reference
purposes only and shall not affect in any way the meaning or interpretation of
this Agreement.

        Section 10.3 Counterparts. This Agreement may be executed in two or more
                     ------------
counterparts, each of which shall be deemed an original as against any party
whose signature appears on such counterpart and all of which shall be considered
one and the same agreement and shall become effective when one or more
counterparts have been signed by each of the parties and delivered to the other
parties, it being understood that all parties need not sign the same
counterpart.

        Section 10.4 Severability. In the event that any provision of this
                     ------------
Agreement, or the application thereof, becomes or is declared by a court of
competent jurisdiction to be illegal, void or unenforceable, the remainder of
this Agreement will continue in full force and effect and the application of
such provision to other persons or circumstances will be interpreted so as
reasonably to effect the intent of the parties hereto. The parties further agree
to replace such void or unenforceable provision of this Agreement with a valid
and enforceable provision that will achieve, to the extent possible, the
economic, business and other purposes of such void or unenforceable provision.

        Section 10.5 Entire Agreement. This Agreement (including the schedules
                     ----------------
and exhibits hereto and the other documents delivered pursuant hereto)
constitutes the entire agreement among the parties concerning the subject matter
hereof and supersedes all prior agreements and understandings, both written and
oral, among the parties with respect to the subject matter hereof, other than
the Confidentiality Agreement.

        Section 10.6 Governing Law. This Agreement shall be governed and
                     -------------
construed in accordance with the laws of the State of California without regard
to any applicable conflicts of law principles.

        Section 10.7 Assignment. Neither this Agreement nor any of the rights,
                     ----------
interests or obligations hereunder shall be assigned by any of the parties
hereto (whether by operation of law or otherwise) without the prior written
consent of the other parties. Subject to the preceding sentence, this Agreement
will be binding upon, inure to the benefit of and be enforceable by the parties
and their respective successors and assigns.

        Section 10.8 Third Party Beneficiaries. Nothing contained in this
                     -------------------------
Agreement is intended to confer upon any person other than the parties hereto
and their respective successors and permitted assigns, any rights, remedies or
obligations under, or by reason of this Agreement, 

                                       43
<PAGE>
 
except that (i) the persons who are stockholders of Cadis immediately prior to
the Effective Time (and their successors and assigns) are express intended third
party beneficiaries of Articles I and II, Section 6.9 and Article IX, (ii) the
persons who hold Cadis Options immediately prior to the Effective Time (and
their lawful successors and assigns) are express intended third party
beneficiaries of Section 6.12, (iii) each of the foregoing persons is an express
intended third party beneficiary of Section 6.11 and, to the extent relevant to
any of the foregoing, Article X and as such are entitled to rely on the
provisions hereof as if a party hereto.

                                       44
<PAGE>
 
     IN WITNESS WHEREOF, Aspect, Sub and Cadis have caused this Agreement to be
signed by their respective officers thereunto duly authorized, and the
Stockholder Representative has signed this Agreement, as of the date first
written above.

CADIS, INC.                         ASPECT DEVELOPMENT, INC.


By:______________________________   By:___________________________________

Title:___________________________   Title:________________________________



STOCKHOLDER REPRESENTATIVE          HAWAII ACQUISITION CORPORATION


_________________________________   By:___________________________________
Carl D. Carman
                                    Title:________________________________

                                       45
<PAGE>
 
                                   EXHIBIT A

                                ESCROW AGREEMENT


        THIS ESCROW AGREEMENT is made and entered into as of November ____, 1997
by and among Aspect Development, Inc., a Delaware corporation ("Aspect"), U.S.
Stock Transfer Corporation (the "Escrow Agent"), and Carl D. Carman (the
"Stockholder Representative") for and on behalf of the stockholders (the
"Stockholders") of Cadis, Inc., a Delaware corporation ("Cadis").

                                 RECITALS:
                                 -------- 

        A. Pursuant to that certain Agreement and Plan of Reorganization dated
as of November 18, 1997 (the "Plan of Reorganization"), Aspect will issue to the
Stockholders shares of Common Stock, $0.001 par value, of Aspect ("Aspect Common
Stock) pursuant to the merger (the "Merger") of Aspect Acquisition Corporation,
a Delaware corporation and wholly-owned subsidiary of Aspect ("Sub"), with and
into Cadis.

        B. Pursuant to Article IX of the Plan of Reorganization, a copy of which
is attached hereto as Appendix I and incorporated herein by reference, the
                      ----------
Stockholders have agreed to indemnify Aspect and other members of the Aspect
Group (as therein defined) with respect to inaccuracies in or breaches of
representations, warranties or covenants made by Cadis in the Plan of
Reorganization and certain other matters.

        C. In accordance with the Plan of Reorganization, the parties desire to
establish an escrow for the purpose of providing a fund against which Aspect (on
behalf of itself and other members of the Aspect Group) may seek indemnification
under the Plan of Reorganization.

                                   AGREEMENT:
                                   --------- 

        NOW, THEREFORE, in consideration of the foregoing premises and the
mutual obligations herein, the parties agree as follows:

        Section 11. Establishment of Escrow. At the Closing (as defined in the
                    -----------------------
Plan of Reorganization), or as soon thereafter as practicable, Aspect shall
deliver to the Escrow Agent for deposit into escrow (the "Escrow") certificates
representing an aggregate of 114,750 shares of Aspect Common Stock otherwise
distributable at the Closing to the Stockholders in the Merger (the "Escrow
Shares"). The Escrow Shares (plus such additional shares as may be issued upon
any stock split, stock dividend or recapitalization effected by Aspect after the
Effective Time) so delivered to the Escrow Agent and any

                                       1
<PAGE>
 
other securities, cash or other property from time to time held by the Escrow
Agent pursuant to the terms hereof are herein referred to as the "Escrow Fund."
The Escrow Agent agrees to accept the Escrow Shares and to hold the Escrow Fund
in escrow subject to the terms and conditions of this Agreement.

        Section 12. Maintenance of the Escrow. The Escrow Agent shall establish
                    -------------------------
a separate account for each Stockholder showing the number of Escrow Shares and
the amount and type of other property, if any, held in the Escrow for such
Stockholder on the basis of a list of the Stockholders' respective ownership
percentage provided to the Escrow Agent by the Stockholder Representative. The
Escrow Agent shall maintain records showing each Stockholder's Proportionate
Interest in the Escrow Fund and shall adjust each Stockholder's account to
reflect distributions from, and additions or substitutions to, the property held
for the account of such Stockholder in the Escrow. For purposes of this
Agreement, each Stockholder's "Proportionate Interest" in the Escrow Fund as of
a specific date shall be equal to the percentage that the value of the Escrow
Shares and other property held for the account of such Stockholder in the Escrow
bears to the value of all property held for the account of all Stockholders in
the Escrow as of such date. For purposes of the provisions of this Agreement
relating to indemnification and claims, the Escrow Shares shall be deemed to
have a value equal to the average closing sale price of Aspect Common Stock (as
quoted on the Nasdaq National Market and reported in The Wall Street Journal)
                                                     -----------------------
for the ten (10) trading days preceding the date of the Plan of Reorganization.
The Escrow Agent is hereby granted the power to effect any transfer of Escrow
Shares required by this Agreement. Aspect shall cooperate with the Escrow Agent
in promptly issuing, or causing its transfer agent to promptly issue, such stock
certificates as shall be required to effect such transfers. All Escrow Shares
and any other securities from time to time held in the Escrow Fund shall be
registered in the name of the Escrow Agent or its nominee.

        Section 13. Stockholder Representative. From and after the establishment
                    --------------------------
of the Escrow as provided in Section 1 hereof, the Stockholders shall be
represented by the Stockholder Representative, or his successor appointed in
accordance with Section 9.6 of the Plan of Reorganization, who shall have the
duties and authority set forth in said section.

        Section 14. Dividends, Voting and Rights of Ownership. Except for tax-
                    -----------------------------------------
free dividends paid in stock declared with respect to the Escrow Shares pursuant
to Section 305(a) of the Internal Revenue Code of 1986, as amended (the "Code"),
which shall be treated in the manner set forth in Section 1 hereof, any cash
dividends, dividends payable in securities or other distributions of any kind
made in respect of the Escrow Shares will be distributed currently to the
Stockholders and, if distributed to the Escrow Agent, shall promptly be paid
over to the Stockholders. Each Stockholder will have voting rights with respect
to the Escrow Shares deposited in the Escrow with respect to such Stockholder so
long as such Escrow Shares are held in escrow, and Aspect shall take all
reasonable steps necessary to allow the exercise of such rights. While the
Escrow Shares remain in the 

                                       2
<PAGE>
 
Escrow Agent's possession pursuant to this Agreement, the Stockholders will
retain and will be able to exercise all other incidents of ownership of said
Escrow Shares which are not inconsistent with the terms and conditions of this
Agreement. Subject to the rights of Aspect and the other members of the Aspect
Group under the Plan of Reorganization and this Agreement, all beneficial
interest in the Escrow Fund shall be the property of the Stockholders from and
after the Closing, and Aspect shall have no interest therein. None of the rights
of the Stockholders hereunder shall be transferable except as otherwise provided
by law. Each of the Stockholders shall be obligated for all federal, state or
local taxes applicable to such Stockholder's interest in the Escrow Fund.

        Section 15.  Claims for Indemnification; Disposition Thereof.
                     -----------------------------------------------

        Section 15.1 If an Indemnitee (as defined in the Reorganization
Agreement) shall have any claim for indemnification pursuant to Article IX of
the Plan of Reorganization (a "Claim"), the Indemnitee or Aspect shall promptly
deliver to the Stockholder Representative and the Escrow Agent an
Indemnification Claim in accordance with Section 9.3 of the Plan of
Reorganization Agreement.

        Section 15.2 If the Stockholder Representative shall not have notified
Aspect and the Escrow Agent of its objection to the delivery of any of the
Escrow Fund out of the Escrow to Aspect for application to such Claim within
thirty (30) calendar days after delivery of such Indemnification Claim
(determined in accordance with Section 14(d)), the Escrow Agent shall, as
promptly as practicable following the expiration of such period, deliver out of
the Escrow to Aspect the number of whole Escrow Shares having an aggregate value
most nearly equal to the amount of such Claim.

        Section 15.3 If the Stockholder Representative gives notice to the
Escrow Agent and Aspect of its objection to the delivery of any of the Escrow
Fund out of the Escrow to Aspect for application to a Claim (a "Contested
Claim") within the 30-day period specified in Section 5(b) hereof, the Escrow
Agent shall make no delivery to Aspect out of the Escrow Fund with respect to
such Contested Claim until the rights of the Stockholders and the Indemnitee
with respect thereto have been agreed upon between the Stockholder
Representative and Aspect or until such rights are finally determined by
arbitration pursuant to Section 13 hereof. If the arbitrator in such proceeding
shall determine that the Escrow Fund, or any part thereof, is to be delivered
out of the Escrow to Aspect to satisfy such Contested Claim, the Escrow Agent
shall, as promptly as practicable following receipt of such determination,
deliver out of the Escrow to Aspect the number of whole Escrow Shares having an
aggregate value most nearly equal to the amount of such Contested Claim.

        Section 16. Distribution of Escrow Fund; Termination of Escrow. The
                    --------------------------------------------------
portion of the Escrow Fund not previously distributed in accordance with the
terms of Section 5 hereof


                                      3
<PAGE>
 
shall be held by the Escrow Agent until the date (the "Release Date") occurring
ten (10) business days following the first anniversary of the Closing Date (as
defined in the Plan of Reorganization). Notwithstanding the foregoing, there
shall be retained in the Escrow the lesser of (i) the number of Escrow Shares
having an aggregate value (determined pursuant to Section 2 hereof) equal to
100% of the amount of all pending Claims asserted pursuant to Section 5 hereof
and expenses reasonably estimated by Aspect to be necessary for the disposition
of all such Claims, and (ii) the entire remaining Escrow Fund. The Escrow Fund
not so distributed shall be retained by the Escrow Agent until all such pending
Claims are resolved and the remaining Escrow Fund deliverable to any Aspect
Indemnitee as a result thereof, if any, shall have been delivered to Aspect.
Thereafter, the Escrow Agent shall, as promptly as practicable, deliver the
remaining Escrow Fund to the Stockholders in accordance with their Proportionate
Interests.

        Section 17. Term of Escrow Agreement. This Agreement shall terminate
                    ------------------------
upon the distribution by the Escrow Agent of all property held in the Escrow
Fund.

        Section 18. Fees of the Escrow Agent. The fees of the Escrow Agent,
                    ------------------------
including (i) the normal costs of administering the Escrow as set forth on the
Fee Schedule attached hereto as Appendix II and (ii) all fees and costs
                                -----------
associated with the administration of Claims, shall be paid by Aspect. In the
event that the Escrow Agent renders any service hereunder not provided for
herein or there is any assignment of any interest in the subject matter of the
Escrow or modification hereof, the Escrow Agent shall be reasonably compensated
for such extraordinary services by the party that is responsible for or requests
such services.

        Section 19. Liability of the Escrow Agent. In performing any of its
                    -----------------------------
duties under this Agreement, the Escrow Agent shall not be liable to any party
for damages, losses or expenses, except in the event of gross negligence or
willful misconduct on its part. The Escrow Agent shall not incur any such
liability for (i) any act or failure to act made or omitted in good faith, or
(ii) any action taken or omitted in reliance upon any instrument, including any
written statement or affidavit provided for in this Agreement that the Escrow
Agent shall in good faith believe to be genuine; nor will the Escrow Agent be
liable or responsible for forgeries, fraud, impersonations, or determining the
scope of any agent's authority. In addition, the Escrow Agent may consult with
legal counsel in connection with its duties under this Agreement and shall be
fully protected in any act taken, suffered, or permitted by it in good faith in
accordance with the advice of counsel. The Escrow Agent is not responsible for
determining and verifying the authority of any person acting or purporting to
act on behalf of any party to this Agreement.

        Section 20. Controversies. If any controversy arises between the parties
                    -------------
to this Agreement, or with any other party, concerning the subject matter of the
Escrow, its terms or conditions, the Escrow Agent will not be required to
determine the controversy or to take any action regarding it. The Escrow Agent
may hold all documents and funds and may wait for settlement of any such
controversy by final appropriate legal proceedings or other means as, in the
Escrow Agent's discretion, it may require, despite what may be set forth

                                       4
<PAGE>
 
elsewhere in this Agreement. In such event, the Escrow Agent will not be liable
for interest or damage. Furthermore, the Escrow Agent may, at its option, file
an action of interpleader requiring the parties to answer and litigate any
claims and rights among themselves. The Escrow Agent is authorized to deposit
with the clerk of the court all documents and funds held in the Escrow, except
all costs, expenses, charges and reasonable attorneys' fees incurred by it due
to the interpleader action and which the parties jointly and severally agree to
pay, provided that any liability of the Stockholders for such costs, expenses,
     --------
charges and fees shall be paid exclusively out of the Escrow Fund.. Upon
initiating such action, the Escrow Agent shall be fully released and discharged
of and from all obligations and liability imposed by the terms of the Escrow.

        Section 21. Indemnification of Escrow Agent. Aspect and the Stockholders
                    -------------------------------
and their respective successors and assigns agree jointly and severally to
indemnify and hold the Escrow Agent harmless against any and all losses, claims,
damages, liabilities and expenses, including reasonable costs of investigation,
reasonable fees and disbursements of counsel and disbursements that may be
imposed on the Escrow Agent, or incurred by it in connection with the
performance of its duties under this Agreement, including but not limited to any
arbitration or litigation arising from this Agreement or involving its subject
matter, provided that any liability of the Stockholders for indemnification
        --------
pursuant to this Section 11 shall be paid exclusively out of the Escrow Fund.
Nothing contained in this Section 11 shall impair the rights of the Stockholders
and Aspect, as between themselves, including without limitation, their rights to
enforce the provisions of Section 8 hereof with respect to the allocation of the
Escrow Agent's fees.

        Section 22. Resignation of Escrow Agent. The Escrow Agent may resign at
                    ---------------------------
any time upon giving at least thirty (30) days written notice to the other
parties; provided, however, that no such resignation shall become effective
         -----------------
until the appointment of a successor Escrow Agent which shall be accomplished as
follows: Aspect and the Stockholder Representative shall use their best efforts
to agree on a successor Escrow Agent within thirty (30) days after receiving
such notice. If the parties fail to agree on a successor Escrow Agent within
such time, the Escrow Agent shall have the right to appoint a successor Escrow
Agent authorized to do business in the State of California. The successor Escrow
Agent shall execute and deliver to the Escrow Agent an instrument accepting such
appointment, and the successor Escrow Agent shall, without further acts, be
vested with all the estates, property rights, powers, and duties of the
predecessor Escrow Agent as if originally named as Escrow Agent herein. The
predecessor Escrow Agent then shall be discharged from any further duties and
liability under this Agreement.

        Section 23. Arbitration.
                    ----------- 

        Section 23.1 Each Contested Claim will be settled by binding arbitration
pursuant to Section 13(c) hereof unless otherwise agreed by the Stockholder
Representative and Aspect. Any portion of the Claim which is not contested shall
be resolved as set forth in Section 5(b) hereof. The final decision of the
arbitrator shall be furnished to the Escrow Agent, the Stockholder


                                       5
<PAGE>
 
Representative and Aspect in writing and will constitute a conclusive
determination of the issue in question, binding upon Cadis, the Stockholders and
Aspect and shall not be contested or appealed by any of them. After notice that
the Claim is contested by the Stockholder Representative, the Escrow Agent will
continue to hold in the Escrow Fund Escrow Shares having a value sufficient to
cover such Claim, as determined pursuant to Section 2 hereof (notwithstanding
the expiration of the Release Date), until the earlier of (i) execution of a
settlement agreement by Aspect and the Stockholder Representative setting forth
a resolution of the Indemnification Claim, or (ii) receipt of a copy of the
final award of the arbitrator.

        Section 23.2 The number of Escrow Shares to be delivered or held in
Escrow pursuant to a Contested Claim shall be equal to (i) the aggregate dollar
amount of the Contested Claim as determined pursuant to this Section 13 divided
by (ii) the value of the Escrow Shares, as determined pursuant to Section 2
hereof.

Section 23.3 Any Contested Claim shall be settled by arbitration in Denver,
Colorado, in the case of an action initiated by Aspect, and in Palo Alto,
California, in the case of an action initiated by the Stockholder
Representative, and, except as herein specifically stated, in accordance with
the commercial arbitration rules of the American Arbitration Association ("AAA
Rules") then in effect. However, in all events, these arbitration provisions
shall govern over any conflicting rules which may now or hereafter be contained
in the AAA Rules. Any judgment upon the award rendered by the arbitrator may be
entered in any court having jurisdiction over the subject matter thereof. The
arbitrator shall have the authority to grant any equitable and legal remedies
that would be available in any judicial proceeding instituted to resolve a
Contested Claim, including the ability to allocate costs of defending and
settling any such Contested Claim among the parties.

        Section 24.  Miscellaneous.
                     ------------- 

        Section 24.1 Assignment; Binding upon Successors and Assigns. Except as
                     -----------------------------------------------
set forth in Section 12 with respect to the Escrow Agent, none of the parties
hereto may assign any of its rights or obligations hereunder without the prior
written consent of the other parties. This Agreement will be binding upon and
inure to the benefit of the parties hereto and their respective successors and
permitted assigns.

        Section 24.2 Severability. If any provision of this Agreement, or the
                     ------------
application thereof, shall for any reason and to any extent be held to be
invalid or unenforceable, the remainder of this Agreement and the application of
such provision to other persons or circumstances shall be interpreted so as best
to reasonably effect the intent of the parties hereto. The parties further agree
to replace such invalid or unenforceable provision of this Agreement with a
valid and enforceable provision which will achieve, to the extent possible, the
economic, business and other purposes of the invalid or unenforceable provision.

                                       6
<PAGE>
 
        Section 24.3 Entire Agreement. This Agreement, the Appendices hereto,
                     ----------------
the documents referenced herein, and the exhibits thereto, constitute the entire
understanding and agreement of the parties hereto with respect to the subject
matter hereof and thereof and supersede all prior and contemporaneous agreements
or understandings, inducements or conditions, express or implied, written or
oral, between the parties with respect hereto and thereto. The express terms
hereof control and supersede any course of performance or usage of the trade
inconsistent with any of the terms hereof.

        Section 24.4 Notices. No notice or other communication shall be deemed
                     -------
given unless sent in the manner, and to the persons, specified in this Section
14(d). All notices and other communications hereunder will be in writing and
will be deemed given (i) upon receipt if delivered personally (or if mailed by
registered or certified mail), (ii) the day after dispatch if sent by overnight
courier, or (iii) upon dispatch if transmitted by facsimile (and confirmed by a
copy delivered in accordance with clause (i) or (ii)), addressed to the parties
at the following addresses:

                To the Escrow Agent:  U.S. Stock Transfer Corporation
                                      1745 Gardena Avenue
                                      Glendale, California  91204-2991
                                      Facsimile:  (818) 502-0674
                                      Attn:  Richard Brown
 
                          To Aspect:  Aspect Development, Inc.
                                      1300 Charleston Road
                                      Mountain View, CA 94043
                                      Facsimile: (650) 428-2700
                                      Attn: Chief Financial Officer

                     with a copy to:  Gray Cary Ware & Freidenrich
                                      400 Hamilton Avenue
                                      Palo Alto, California 94301
                                      Facsimile: (415) 327-3699
                                      Attn: James M. Koshland, Esq.

  To the Stockholder Representative:  Carl D. Carman
                                      885 Arapahoe
                                      Boulder, Colorado 80302
                                      Facsimile: (303) 442-8525

                                      7
<PAGE>
 
                     with a copy to:  Ireland, Stapleton, Pryor & Pascoe P.C.
                                      1575 Broadway, Suite 2600
                                      Denver, CO 80202
                                      Facsimile: (303) 623-2062
                                      Attn: John G. Lewis, Esq.

Any party may change its address for such communications by giving notice
thereof to the other parties.

        Section 24.5 Other Remedies. Except as otherwise provided herein, any
                     --------------
and all remedies herein expressly conferred upon a party shall be deemed
cumulative with and not exclusive of any other remedy conferred hereby or by law
on such party, and the exercise of any one remedy shall not preclude the
exercise of any other.

        Section 24.6 Amendment and Waivers. Any term or provision of this
                     ---------------------
Agreement may be amended, and the observance of any term of this Agreement may
be waived (either generally or in a particular instance and either retroactively
or prospectively) only by a writing signed by the party to be bound thereby. The
waiver by a party of any breach hereof for default in payment of any amount due
hereunder or default in the performance hereof shall not be deemed to constitute
a waiver of any other default or any succeeding breach or default.

        Section 24.7 Further Assurances. Each party agrees to cooperate fully
                     ------------------
with the other parties and to execute such further instruments, documents and
agreements and to give such further written assurances, as may be reasonably
requested by any other party to better evidence and reflect the transactions
described herein and contemplated hereby and to carry into effect the intents
and purposes of this Agreement.

        Section 24.8 Absence of Third Party Beneficiary Rights. Nothing
                     -----------------------------------------
contained in this Agreement is intended to confer upon any person other than the
parties hereto and their respective successors and permitted assigns, any
rights, remedies or obligations under, or by reason of this Agreement, other
than the persons who are stockholders of Cadis immediately prior to the
Effective Time (and their successors and assigns) who, as such, are entitled to
rely on the provisions hereof as if a party hereto.

        Section 24.9 Governing Law. It is the intention of the parties hereto
                     -------------
that the internal laws of the State of California (irrespective of its choice of
law principles) shall govern the validity of this Agreement, the construction of
its terms, and the interpretation and enforcement of the rights and duties of
the parties hereto.

                                      8
<PAGE>
 
        Section 24.10 Counterparts. This Agreement may be executed in any number
                      ------------
of counterparts, each of which shall constitute an original and all of which
together shall constitute one and the same instrument.

        IN WITNESS WHEREOF, the parties have executed this Agreement as of the
date first set forth above.

                                    ASPECT DEVELOPMENT, INC.


                                    By:___________________________________

                                    Title:________________________________


                                    ESCROW AGENT:

                                    U.S. STOCK TRANSFER CORPORATION


                                    By:___________________________________

                                    Title:________________________________


                                    STOCKHOLDER REPRESENTATIVE:


                                    ______________________________________
                                    Carl D. Carman


                                      9
<PAGE>
 
                                   EXHIBIT B

                               VOTING AGREEMENT


<PAGE>
 
                                   EXHIBIT C

                                 NONCOMPETITION AGREEMENT
                                 ------------------------


     THIS NONCOMPETITION AGREEMENT ("Agreement") is entered into this ______ day
of November, 1997, by and between ________________________, an individual
("Stockholder"), and Aspect Development, Inc., a Delaware corporation ("Buyer").


                                 RECITALS:

     A.   Cadis, Inc., a Delaware corporation ("Seller"), together with its
subsidiaries is engaged throughout the United States of America and the world in
the business of the development, manufacture and marketing of enterprise
client/server software and reference data products for manufacturers ("Business
of Seller" or "Seller's Products").

     B.   Pursuant to that certain Agreement and Plan of Reorganization (the
"Reorganization Agreement"), dated November ___, 1997, among Buyer, Hawaii
Acquisition Corporation, a Delaware corporation wholly owned by Buyer ("Sub"),
and Seller, Buyer is acquiring Seller through a merger of Sub with and into
Seller (the "Merger").  After the Merger becomes effective, the separate
existence of Sub shall cease, and Seller, as the surviving corporation in the
Merger shall continue its corporate existence under the laws of the State of
Delaware and will continue to operate the Business of Seller.

     C.   Stockholder is the beneficial owner of shares of, or options to
acquire, capital stock of Seller and is a key employee or officer of Seller.  As
a result of the Merger, Stockholder will be entitled to receive stock and
options with a substantial value.

     D.   This Agreement is entered into by Stockholder in consideration of and
as an inducement to Buyer and Sub to consummate the Merger.

                                 AGREEMENT:

     NOW, THEREFORE, the parties agree as follows:

     1.   Covenant Not to Compete.  Stockholder agrees that for a period of
eighteen (18) months from the effective time of the Merger and for so long
thereafter as Stockholder is employed by or serves as a consultant to Buyer (the
"Noncompetition Period"), Stockholder will not, directly or indirectly,
individually or as an owner, partner, shareholder, joint venturer,

                                      1
<PAGE>
 
corporate officer, director, employee, consultant, principal, agent, trustee or
licensor, or in any other similar capacity whatsoever of or for any person,
firm, partnership, company or corporation (other than Buyer), including, but not
limited to, Information Handling Systems, Inc., Acquion, Inc., Ariba
Technologies, Inc., and Requisite Technology, Inc., (a) own, manage, operate,
sell, control or participate in the ownership, management, operation, sales or
control of any business engaged to a significant degree in the design, research,
development, marketing, sales, manufacture or licensing of products that are
substantially similar to or competitive with any Seller Products (whether
through stand-alone products or broader products that include equivalent
functionality) ("Competitive Products"), or be employed primarily in the design,
research, development, marketing, sale or manufacture of such Competitive
Products, (b) accept employment with a customer of Seller with the intent or
purpose of depriving Seller of business performed by Seller by transferring such
work to a department, division or affiliate of the customer or to a third party,
or (c) request or advise any of the customers, suppliers or other business
contacts or Seller with which Stockholder had contact while employed or Seller
to withdraw, curtail, cancel or not increase their business with Seller.
Notwithstanding the foregoing, Stockholder is permitted to own as a passive
investor up to a one percent (1%) interest in any publicly traded entity.

     2.   Covenant Not to Solicit.  Stockholder further agrees that, during the
term of the covenants set forth in Section 1 above, Stockholder will not
directly or indirectly recruit, induce or attempt to persuade any person who is
then, or at any time during the previous six (6) months has been, an employee,
sales representative or consultant of Buyer or Seller to terminate or curtail
his or her relationship with Buyer or Seller.

     3.   Nondisruption; Other Matters.  During the Noncompetition Period,
Stockholder agrees that he or she will not directly or indirectly interfere
with, disrupt or attempt to disrupt any past, present or prospective
relationship, contractual or otherwise, between Hawaii, on the one hand, and any
of its customers, suppliers or employees, on the other hand.

     4.   Reasonableness.  Stockholder agrees that the covenants provided for in
Sections 1 through 3 hereof, including the term and the geographical area
encompassed therein, are necessary and reasonable in order to protect Buyer in
the conduct of its business and the utilization of its assets, tangible and
intangible, including goodwill, and to preserve and protect the tangible and
intangible assets of Seller, including Seller's goodwill, and the customers and
trade secrets of which Stockholder has and will have knowledge, and in
consideration for Buyer's entering into and performing under the Reorganization
Agreement.  Both parties agree that the execution, delivery and performance of
this Agreement is in consideration of and a condition to the consummation of the
Merger, and the parties do not ascribe and cannot ascribe a separate
consideration or value to the covenants provided herein.


                                      2
<PAGE>
 
     5.   Confidentiality.  Stockholder acknowledges that he or she is subject
to the terms of Seller's standard form of employee confidentiality agreement, a
copy of which is attached hereto as Exhibit A.  Stockholder agrees that, in the
event he or she serves as an employee of Buyer or Seller after the Merger,
Stockholder shall be subject to the terms of Buyer's standard form of employee
confidentiality agreement, a copy of which is attached hereto as Exhibit B.

     6.   Construction.  The covenants contained in this Agreement shall be
construed as a series of separate covenants, one for each of the counties in
each of the states of the United States of America, one for each province of
Canada, and one for each country outside the U.S. and Canada.  It is the desire
and intent of the parties that these covenants shall be enforced to the fullest
extent permissible under applicable law and that if one such clause is found
unenforceable, the remaining clauses be enforced.

     7.   Injunctive Relief.  It is expressly agreed between the parties that
monetary damages would be inadequate to compensate Buyer for any breach by
Stockholder of his covenants and agreements set forth herein.  Accordingly,
Stockholder agrees and acknowledges that any such violation or threatened
violation will cause irreparable injury to Buyer and that, in addition to any
other remedies which may be available, Buyer shall be entitled to seek to obtain
injunctive relief against the threatened breach of this Agreement or the
continuation of any such breach by Stockholder, without the necessity of proving
actual damages.

     8.   Entire Agreement; Amendments.  This Agreement contains the entire
agreement of the parties hereto with respect to the subject matter hereof.
There are no restrictions, promises, covenants, or undertakings, other than
those expressly set forth herein.  This Agreement supersedes all prior
agreements and understandings between the parties with respect to such subject
matter.  No provision hereof may be waived, altered or amended, except by
written instrument signed by all of the parties hereto.

     9.   Governing Law.  This Agreement shall be governed, construed and
enforced in accordance with the laws of the State of Colorado.  All disputes
arising under this Agreement shall be brought in the federal and state courts
located in Colorado, as permitted by law, and each of the parties hereby
consents to the personal jurisdiction, service of process and venue of such
courts.

     10.  Successors and Assigns.  Neither this Agreement nor any of the rights
or obligations of Stockholder arising under this Agreement may be assigned or
transferred without Buyer's prior written consent.  This Agreement will be for
the benefit of Buyer's successors and assigns, and will be binding on
Stockholder's heirs and legal representatives.


                                      3
<PAGE>
 
     11.  Notices.  Any notice or other communication under this Agreement shall
be in writing, signed by the party making the same, and shall be delivered
personally or sent by certified or registered mail, postage prepaid, addressed
as follows:

     If to Stockholder:

          ______________
          ______________
          ______________

     If to Buyer:

          Aspect Development, Inc.
          1300 Charleston Road
          Mountain View, CA  94043
          Attn:  Chief Financial Officer

     with a copy to:

          Gray Cary Ware & Freidenrich
          400 Hamilton Avenue
          Palo Alto, CA 94301
          Attn:  James Koshland, Esq.

or to such other address as may hereafter be designated by either party hereto.
All such notices shall be deemed given on the date personally delivered or
mailed.

     12.  Severability.  The parties agree that construction of this Agreement
shall be in favor of its reasonable nature, legality and enforceability, and
that any construction causing unenforceability shall yield to a construction
permitting enforceability.  It is agreed that the noncompetition,
nonsolicitation, nondisclosure and nondisruption covenants and provisions of
this Agreement are severable, and that if any single covenant or provision or
multiple covenants or provisions should be found unenforceable, the entire
Agreement and remaining covenants and provisions shall not fail but shall be
construed as enforceable without any severed covenant or provision in accordance
with the tenor of this Agreement.  Should a court or any other trier of fact or
law determine not to enforce any covenant or provision of this Agreement as
written due to overbreadth, then the parties agree that said covenant or
provision shall be enforced to the extent reasonable, with the court or such
trier to make any necessary revisions to said covenant or provision to permit
its enforceability.


                                      4
<PAGE>
 
     13.  Effectiveness.  Notwithstanding any other provision of this Agreement,
this Agreement shall become effective only upon the effectiveness of the Merger,
and if the Merger does not occur, this Agreement shall be void ab initio and
                                                               ---------
have no force and effect.

     14.  Waiver of Jury Trial.  EACH OF THE PARTIES HERETO HEREBY IRREVOCABLY
WAIVES ANY AND ALL RIGHT TO TRIAL BY JURY IN ANY LEGAL PROCEEDING ARISING OUT OF
OR RELATED TO THIS AGREEMENT.

     15.  No Waiver.  No term or condition of this Agreement shall be deemed to
have been waived, nor shall there be any estoppel to enforce any provision of
this Agreement, except by a statement in writing signed by the party against
whom enforcement of the waiver or estoppel is sought.  Any written waiver shall
operate only as to the specific term or condition waived and shall not
constitute a waiver of such term or condition for the future or as to any act
other than that specifically waived.

     16.  Counterparts.  This Agreement may be executed in counterparts, each of
which shall be an original, with the same effect as if the signatures thereto
and hereto were upon the same instrument.

                 [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]

                                      5
<PAGE>
 
     IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of
the date first written above.


                              ___________________________________________ 
                              Stockholder Signature
                              Name Printed:______________________________

                              ASPECT DEVELOPMENT, INC.

                              By:________________________________________
                              Print Name:________________________________
                              Title:_____________________________________

                                      6

<PAGE>
 
                                                                     EXHIBIT 2.2


               AMENDMENT TO AGREEMENT AND PLAN OF REORGANIZATION


     This Amendment dated November 21, 1997 amends that certain Agreement and
Plan of Reorganization dated November 18, 1997 (the "Original Agreement") by and
among Aspect Development, Inc., a Delaware corporation ("Aspect"), Hawaii
Acquisition Corporation, a Delaware corporation and wholly-owned subsidiary of
Aspect ("Sub"), CADIS, Inc., a Delaware corporation ("Cadis") and solely for the
purposes of set forth in Section 6.2(d) and Article IX hereof, Carl D. Carman,
an individual.

                                 RECITALS
                                 --------

     WHEREAS, the parties have agreed to amend and restate Section 9.2(d) of the
Original Agreement to clarify the parties intentions as expressed therein.

                                 AGREEMENT
                                 ---------

     NOW, THEREFORE, in consideration of the foregoing and the respective
representations, warranties, covenants and agreements set forth below and in the
Original Agreement, the parties agree as follows:

     1.   Section 6.2(f) of the Original Agreement is hereby amended to add the
following proviso at the end of such paragraph (f):

     "...;provided, however, that the total amount for which any Holder shall be
          -----------------
     liable under this Section 6.2(f) shall not exceed the aggregate proceeds
     received by such Holder from the sale of Registrable Securities held by
     such Holder in such registration."

     2.   Section 9.2(d) of the Original Agreement is hereby amended to read in
its entirety as follows:

          "(d) The provisions of Section 9.2(b) and (c) above and Section 9.6
     below shall not limit, in any manner, any remedy at law or in equity to
     which any member of the Aspect Group shall be entitled against Cadis or any
     stockholder of Cadis, respectively, as a result of willful fraud or
     intentional misrepresentation by Cadis or any of its representatives, or as
     a result of willful fraud or intentional misrepresentation by any such
     stockholder or any of its representatives, respectively; provided that,
     Aspect acknowledges and agrees that the liability of any representative or
     stockholder shall be several and not joint, and shall only apply to any
     such stockholder or 

                                      -1-
<PAGE>
 
     representative who engages or participates in the fraud or intentional
     misrepresentation."

     3.   All defined terms used herein shall have the meaning set forth in the
Original Agreement.

     4.   Except as expressly set forth herein, all terms and conditions of the
Original Agreement remain in full force and effect.



           [THE REMAINDER OF THIS PAGE IS INTENTIONALLY LEFT BLANK]

                                      -2-
<PAGE>
 
IN WITNESS WHEREOF, Aspect, Sub and Cadis have caused this Amendment to the
Original Agreement to be signed by their respective officers thereunto duly
authorized, and the Stockholder Representative has signed this Amendment, as of
the date first written above.


ASPECT DEVELOPMENT, INC.                CADIS, INC.



By:_____________________________        By:______________________________
Its:____________________________        Its:_____________________________

HAWAII ACQUISITION CORPORATION

                                        _________________________________
                                        Carl D. Carman, Stockholder
By:_____________________________        Representative
Its:____________________________

                                      -3-

<PAGE>
 
                                                                    Exhibit 99.1



Aspect Development
to Acquire CADIS


Market Leaders Join Forces to Expand the Overall Market for Component
and Supplier Management

MOUNTAIN VIEW, California, November 18, 1997- Aspect Development, Inc.,
the worldwide leader in component and supplier management (CSM)
solutions, today announced a definitive merger agreement under which
Aspect Development will acquire CADIS, Inc. in a stock-for-stock
transaction. Together, the two companies have over 125 of the world's
largest manufacturers as customers.

Under the terms of the transaction, Aspect will exchange approximately
1.5 million shares of Aspect Common Stock for all outstanding shares in
CADIS. Subject to several conditions, including approval of CADIS
shareholders, the transaction is expected to close by the end of
November. The Company anticipates accounting for this transaction as a
pooling of interest. Accordingly, at the time of the combination, Aspect
will restate its historical financial statements to account for the
combined results of Aspect and CADIS.

"For Aspect, 1997 continues to be a year of unparalleled growth and
opportunity," said Romesh Wadhwani, Aspect chairman and CEO. "With
record revenues, an 80% growth rate, and the increased acceptance of CSM
by customers, this acquisition represents the next major milestone.
Through the acquisition of CADIS we will broaden our product and
technology offerings, and expand our sales organization and customer
base."

Following completion of the transaction, CADIS' operations will be
merged into the Aspect organization. Aspect will continue development,
maintenance, and support of CADIS software products and services in
addition to Aspect's own Explore software and VIP content product line.
The combined workforces also provide for seamless product and customer
service integration for Aspect and CADIS customers. Aspect will continue
to support the relationships currently in place between CADIS and its
customers.

Synergies between the Two Companies in Product and Market Focus

                                      -1-
<PAGE>
 
Both Aspect and CADIS were founded in 1991 to create component and
supplier management solutions focused on different segments of the
manufacturing market. Aspect developed a powerful solution for
manufacturers with a need to access and manage electronic component
content; typically high technology and aerospace/defense companies.
CADIS developed a solution targeted to manufacturers with a need to
improve mechanical parts re-use. In the ensuing years, both companies
broadened their products and services in divergent areas that will now
be merged to offer CSM solutions for a broad array of companies.

CADIS' product line has evolved to also address the needs of data
aggregators and suppliers who use CADIS' catalog technology to publish
their customized online databases. In addition, CADIS' web technology
has also been applied in the MRO (maintenance, repair, and operations)
market, an area that Aspect has recently entered into with an agreement
with SAP. "The synergies between the two companies are remarkable,"
commented Romesh Wadhwani. "The combined strengths of Aspect and CADIS
will allow us to dramatically broaden the overall CSM market for both
buyers and sellers and into the MRO area."

Combined Workforces Address Growth of CSM Market

Another key factor in the acquisition is the addition of CADIS'
qualified and knowledgeable team of sales and technical personnel, which
allows Aspect to keep pace with the tremendous growth in the CSM market.
"By pooling our strengths and resources, we will be able to take
advantage of the industry momentum that is driving the growth of both
companies," said Joseph Prang, Aspect president and COO.

Tom Kavanagh, CADIS' president and chief executive officer echoed this
sentiment: "The potential market for CSM is enormous-and still
relatively untapped. By joining forces, we can focus the combined
resources of both organizations on dramatically expanding the market and
delivering the best solutions for all customers. The CADIS team is very
excited about what lies ahead for the combined companies."

About the Companies

Aspect Development, Inc., the leading worldwide provider of component
and supplier management (CSM) solutions, develops, markets and supports
enterprise client/server software and reference data products that
enable manufacturers to improve product development and business
processes through CSM. Aspect's corporate headquarters are in Mountain
View, Calif. For more information on Aspect's complete line of CSM

                                      -2-
<PAGE>
 
products and services, contact Aspect at (800) 941-1046, via electronic
mail at [email protected] or via the Web at www.aspectdv.com.

Founded in 1991, CADIS is a leader in commodity and supplier management
solutions, providing large manufacturing companies rapid, parametric
access to both internal commodity data and external preferred supplier
data through the web. In addition, data aggregators and suppliers are
using CADIS' Krakatoa web technology to give manufacturers instant
access to their specialized online databases. For more information,
contact CADIS at 303-440-4363, 5700 Flatiron Parkway, Boulder, CO, 80301
or visit the company web site at www.cadis.com.

Aspect Explore-CIS, Explore Enterprise, AspectOnline, and Aspect VIP are
trademarks of Aspect Development, Inc. CADIS and Krakatoa are registered
trademarks of CADIS, Inc. CADIS Commodity and Supplier Management and
Web Catalog Publisher are trademarks of CADIS, Inc. Other trademarks
used throughout this document are trademarks of their respective
holders.

                                      -3-

<PAGE>
 
                                                                    Exhibit 99.2


Aspect Development Completes Acquisition of CADIS

MOUNTAIN VIEW, Calif., Dec. 1 -- Aspect Development, Inc., the worldwide leader
in component and supplier management (CSM) solutions, today announced the
completion of its acquisition of privately-held CADIS, Inc., based in Boulder
Colorado. CADIS has been a leading contender in the CSM market, with strengths
in web publishing and industrial manufacturing solutions. Together, the merged
companies are poised to dramatically expand the size and growth rate of the
component and supplier management market.

Under the terms of the transaction, Aspect exchanged approximately 1.5 million
shares of Aspect Common Stock for all outstanding shares in CADIS in a pooled
interest transaction that was approved by CADIS shareholders. Beginning in the
fourth quarter of 1997, Aspect will restate its historical financial statements
to account for the combined results of Aspect and CADIS. Aspect intends to
maintain a Boulder facility for many of the new employees from the merger.

Commenting on the acquisition, Romesh Wadhwani, Aspect chairman and CEO, said,
"Not only does this acquisition strengthen our business, it expands the overall
market for component and supplier management. Our focus will continue to be on
growing this market, and making sure that every senior manufacturing executive
is aware of the enormous cost-savings and efficiencies that a CSM system
delivers."

Component and Supplier Management Powerhouse

As competitors, the two companies developed opposing strengths that can now be
joined into what one leading industry analyst has called a "Component Supplier
Management Powerhouse." Aspect now offers customers a full suite of award
winning industry-standard products-including Explore, Aspect's enterprise
component and supplier management (CSM) software for large buying organizations,
as well as Krakatoa, CADIS' Web cataloging software for sellers and product
publishers.

In addition, Aspect customers will now benefit from CADIS' expertise in the
mechanical CSM market as well as Aspect's expertise in the electronic CSM
market. The joined development team will continue to develop, enhance and
support the combined product offerings.

CADIS' relationship with various data partners spanning various commodity types-
MRO goods, office products, industrial equipment, mechanical CAD drawings-will
augment Aspect's

                                      -1-
<PAGE>
 
subscription data business. CADIS' expertise in managing customers' legacy data
will also be used in the combined company.

According to the Gartner Group, "The Aspect and CADIS merger will leverage a
number of synergies between them. CADIS' Krakatoa Web cataloging software fills
a supplier-centric technology void in the Aspect product line and gives it a
stronger competitive footing to pursue the supply-side of the component supplier
management (CSM) market."

Expertise of Combined Workforce to Expand CSM Market

The combined Aspect and CADIS workforce includes over 500 employees. Of the 500
employees, there are now 100 people working in the consulting division with deep
domain expertise in CSM legacy data and business process services. These
employees are already providing CSM solutions to 125 of the world's leading
manufacturers-spanning high tech, aerospace and defense, industrial, automotive,
consumer and process manufacturing customers. Analysts expect that number to
grow rapidly in the coming years.

"This is an interesting acquisition since it results in a hot market with only
one player. In this case, we believe that the business case for CSM is so
compelling and the market demand is so high that Aspect should be able to
continue or even accelerate its growth," reported Advanced Manufacturing
Research.

About the Companies

Aspect Development, Inc., the leading worldwide provider of component and
supplier management (CSM) solutions, develops, markets and supports enterprise
client/server software and reference data products that enable manufacturers to
improve product development and business processes through CSM. Aspect's
corporate headquarters are in Mountain View, Calif. For more information on
Aspect's complete line of CSM products and services, contact Aspect at (800)
941-1046, via electronic mail at [email protected] or via the Web at
www.aspectdv.com.

Founded in 1991, CADIS is a leader in commodity and supplier management
solutions, providing large manufacturing companies rapid, parametric access to
both internal commodity data and external preferred supplier data through the
web. In addition, data aggregators and suppliers are using CADIS' Krakatoa web
technology to give manufacturers instant access to their specialized online
databases. For more information, contact CADIS at 303-440-4363, 5700 Flatiron
Parkway, Boulder, CO, 80301 or visit the company web site at www.cadis.com.

This press release contains forward-looking statements that involve risks and
uncertainties. The success of Aspect Development may differ from the results
discussed or forecasted in the forward-looking statements due to factors that
include, but are not limited to, risks associated with potential difficulties or
delays in the integration of existing products and technologies or development
of new products and technologies, challenges associated with growth, the risk of
loss of key personnel, diversion of management attention from other business

                                      -2-
<PAGE>
 
concerns, and risks of entering new markets, including the risk of variations in
quarterly operating results due to the timing of significant orders and other
factors, significant current and expected additional competition and the need to
continue to expand product distribution, particularly internationally. Further
information on potential factors that could affect the financial results of
Aspect are included in the company's Form 10-K for the year ended December 31,
1996, which are on file with the Securities and Exchange Commission, as well as
subsequent Quarterly Reports on Form 10-Q.

Aspect Explore-CIS, Explore Enterprise, AspectOnline, and Aspect VIP are
trademarks of Aspect Development, Inc. CADIS and Krakatoa are registered
trademarks of CADIS, Inc. CADIS Commodity and Supplier Management and Web
Catalog Publisher are trademarks of CADIS, Inc. Other trademarks used throughout
this document are trademarks of their respective holders.



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