BAAN CO N V
6-K, 1997-05-15
PREPACKAGED SOFTWARE
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<PAGE>   1
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549



                                    FORM 6-K

                            REPORT OF FOREIGN ISSUER
                    PURSUANT TO RULE 13a-16 OR 15d-16 OF THE
                         SECURITIES EXCHANGE ACT OF 1934



                               dated May 15, 1997


                                BAAN COMPANY N.V.



                               Vanenburgerallee 13
                                 3882 RH Putten
                                 The Netherlands
                                       and
                               4600 Bohannon Drive
                           Menlo Park, California USA
                    (Address of principal executive offices)


         Indicate by check mark whether the registrant files or will file annual
reports under cover Form 20-F or Form 40-F

                      Form 20-F [X]         Form 40-F [ ]

         Indicate by check mark whether the registrant by furnishing the
information contained in this Form is also thereby furnishing the information to
the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of
1934

                           Yes [ ]           No [X]

         If "Yes" is marked, indicate below the file number assigned to the
registrant in connection with Rule 12g3-2(b):

                 82-  N.A.
<PAGE>   2

                               BAAN COMPANY N.V.

                                    FORM 6-K


        The Company has agreed to acquire by merger Aurum Software, Inc., a
Delaware corporation ("Aurum"), pursuant to an Agreement and Plan of
Reorganization dated as of May 13, 1997. In the merger, each holder of Aurum
Common Stock will receive 0.3559322034 Baan Common Shares for each outstanding
share of Aurum Common Stock (the "Exchange Ratio"), representing an aggregate
of 4,152,234 Baan Common Shares based on the number of shares of Aurum Common
Stock outstanding on May 12, 1997. The Exchange Ratio was determined based on
the closing price of Baan Common Shares on May 9, 1997, $59.00 per share,
reflecting a purchase price of $21 per share of Aurum Common Stock. The
Exchange Ratio is subject to increase in the event that the average closing
sales price of Baan Common Shares over the 10 trading days prior to the date of
effectiveness of the Merger (the "Baan Stock Value") is less than $50 per
share. In such event, the Exchange Rate increases to the product of the initial
Exchange Ratio, 0.3559322034, times a fraction, the numerator of which is
$50.00 and the denominator of which is the Baan Stock Value. The Exchange Ratio
does not adjust further below a Baan Stock Value of $40 per share, and
accordingly the maximum Exchange Ratio is 0.4449152542 and the maximum number
of Baan Common Shares issuable in respect of Aurum Common Stock (based on the
number of shares of Aurum Common Stock outstanding on May 12, 1997) is
5,190,293 Baan Common Shares.

        The acquisition, which is expected to close in the third quarter of
1997, will be accounted for as a tax free pooling of interests and is subject
to the approval of Aurum's stockholders. The Company has received the agreement
of certain Aurum stockholders holding a majority of Aurum's common stock to
vote in favor of the acquisition, and an option from Aurum to acquire 19.9% of
Aurum's outstanding Common Stock which is exercisable under certain
circumstances. 



                                      
<PAGE>   3




                                BAAN COMPANY N.V.
                                    FORM 6-K


                                TABLE OF CONTENTS





(i)    a press release, dated as of May 13, 1997, announcing the acquisition 
       by Baan Company N.V. of Aurum Software, Inc.;

(ii)   a conformed copy of the Agreement and Plan of Reorganization between Baan
       Company N.V., Green Software Acquisition Corporation and Aurum Software,
       Inc., dated as of May 13, 1997, including certain exhibits thereto; and

(iii)  a conformed copy of the Stock Option Agreement, dated as of May 13, 1997,
       between Baan Company N.V. and Aurum Software, Inc.











                                      -2-
<PAGE>   4


                                   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, thereunto duly authorized.


                                BAAN COMPANY N.V.


                                By: /s/ Jan Westerhoud
                                    --------------------------
                                    Jan Westerhoud
                                    Chief Financial Officer
Date: May 15, 1997




                                       -3-

<PAGE>   5





(i)   a press release, dated as of may 13, 1997, announcing the acquisition 
      by Baan company N.V. of Aurum Software, Inc.

<PAGE>   6


  The Baan Company to Acquire Aurum Software in Move to Deliver Complete
                     Enterprise Applications Backbone

       Companies to Provide Customers with an Integrated Approach to
            Buying, Selling and Producing Products and Services

Putten, The Netherlands; Menlo Park, CA, USA; Santa Clara, CA, USA - May 13,
1997 - The Baan Company (Nasdaq: BAANF; ASE: BAAN), a leading provider of
enterprise business software, and Aurum Software (Nasdaq: AURM), the leader in
customer relationship management software, announced today that the companies
have entered into a definitive agreement for Baan to acquire Aurum. This move
enables Baan to become the first software company to bridge sales, marketing,
and customer service applications with Enterprise Resource Planning (ERP),
creating a single enterprise applications backbone.

     Under the terms of the agreement, approved by the Boards of Directors of
each firm, Baan will issue approximately .3559 shares of its common shares for
each outstanding share of Aurum stock, representing an aggregate of
approximately 4.2 million Baan common shares, subject to adjustments in certain
events. Outstanding options to purchase Aurum stock will be converted at the
exchange ratio into Baan options. Based upon closing stock prices on May 9, the
transaction is valued at approximately $250 million, or $21.00 per share for
Aurum shareholders.

     The acquisition is expected to be accounted for as a pooling of interests
and to qualify as a tax free reorganization. The acquisition is subject to the
approval of Aurum's stockholders and appropriate government agencies, and is
expected to close in the third quarter. At closing, Baan expects to recognize a
one-time charge related to certain acquisition costs and related expenses. Aurum
will continue to operate independently as a wholly owned subsidiary of Baan,
maintaining its focus on developing and marketing best-in-class software for
front office applications.

      "Once again, Baan is leading the market by redefining the future of
enterprise computing as we enable our customers to leverage their enterprise
applications more effectively," said Jan Baan, founder and CEO of Baan.
"Companies today are not getting the full benefit from their corporate
information because of the difficulty in integrating the multiple applications
required to access that information. Baan's vision is to reduce the complexity
of integrating enterprise applications for our customers by providing one single
base upon which other applications can be connected. The acquisition of Aurum
will help us to realize this goal."




<PAGE>   7
                                  
     "With the largest installed base in its class, proven scaleable technology
and a strong focus on enterprise integration, Aurum was the clear choice to make
our vision a reality," said Amal Johnson, president of Baan Affiliates. "In
addition, the strength of Aurum's management team, headed by Mary Coleman, gave
us confidence in the company's ability to independently continue its drive to
lead the customer relationship management market."

     "This move catapults Aurum to the position of market leader in front office
solutions," said Mary Coleman, president and CEO of Aurum. "While still
maintaining its independence, Aurum will be able to leverage Baan's base of
2,300 customers, its global sales, marketing, and support infrastructure, and
build on its strong presence in key vertical markets. Aurum will continue to
extend its core competencies in enterprise buying and selling solutions for
multi-national corporations."

Market Opportunity

     The market opportunity for an enterprise applications backbone is
significant. Two of the fastest growing markets within the enterprise suite are
ERP and Customer Interaction Software, and Baan and Aurum are two of the fastest
growing companies in these markets. Industry analysts have been predicting
multi-vendor convergence as the solution to providing tighter coordination of
business functions within the enterprise. Baan is the first ERP vendor to begin
delivery of this vision. The company took the first step in linking to front
office applications in 1996 with its acquisition of Antalys, a leader in sales
configurator technology. With Aurum's comprehensive suite of customer-focused
applications, Baan extends the vision of a complete front office which links to
ERP.

Customer Benefits

     Today, enterprise applications focus on two different areas of a company's
business: back office -- manufacturing, finance, distribution, and front office
- - -- customer service, marketing and sales information, but leaves the burden of
integrating these application segments to the customer. However, companies and
their partners could realize tremendous benefits from utilizing one enterprise
applications backbone that integrates all these functions. With the acquisition,
Baan expects to be uniquely positioned to provide this backbone.

     An enterprise applications backbone provides an integrated approach to
buying, selling and producing products and services. With this approach, the
entire business process is streamlined and any contact with customers becomes
decision support knowledge for the company. Sales information flows directly to
and from manufacturing, resulting in shorter sales cycles, better forecasting,
optimized product production, fewer defects, greater sales effectiveness and
increased customer satisfaction. Customer input helps drive manufacturing and
production operations, and realistic manufacturing schedules can help to set
realistic customer expectations. These benefits also reach the extended
enterprise such as retailers, distributors, and suppliers.

      "To grow company revenues and maintain market leadership, our front line
sales, marketing and service functions must be part of a continuous process
linked back to finance and manufacturing operations," said Art Data, chief
information officer of
<PAGE>   8
Navistar International Corporation, a Baan customer. "We cannot make major
business gains if we only automate isolated areas of our business. Every
department needs seamless access to information and analysis on a company-wide
basis. This can only be achieved through integrating key business applications.
That is why we view today's announcement from Baan and Aurum as strategic and
potentially very impactful on our business."

Baan and Aurum Synergies

     Baan and Aurum are poised to lead the market in this paradigm shift to the
next generation of enterprise computing, building on four primary areas of
synergy:

* Common Value Proposition

     Both companies share a common goal of reducing complexity in the
implementation and management of enterprise applications. Baan and Aurum
accomplish this by focusing on a customer's business process as a starting point
for implementation, and enable continuous process improvement. This is achieved
through Baan's Dynamic Enterprise Modeling (DEM) capabilities and Aurum's
Adaptable Architecture, resulting in increased competitive advantage and faster
ROI for customers.

* Compatible Market Strategies

     Baan and Aurum both have strengths in multi-site, multi-currency and
multi-language implementations. Aurum will now be able to leverage Baan's strong
global presence and support organizations around the world for increased support
for multi-national customers. Both companies have a blue chip client list, and a
strong commitment to services through established consulting organizations. Both
Baan and Aurum leverage the expertise and knowledge of leading worldwide
consulting partners and systems integrators.

* Complementary Architecture and Technologies

     Baan and Aurum will each continue to maintain an open technology approach
to support customers and to integrate with other enterprise applications
technologies and processes. The companies both offer scaleable, UNIX- and
NT-based solutions and have compatible Internet strategies. Baan will leverage
Aurum's Enterprise Integration Framework to provide easier integration of
diverse enterprise solutions. Aurum's patented, mobile data synchronization
technology, dbSync, is a strong complement to Baan's existing data replication
strategy.

* Cultural Affinity

     Baan and Aurum believe in maintaining and growing their respective core
competencies, always keeping the customer's requirements as the primary focus.
Additionally, Baan and Aurum have similar, complementary corporate cultures that
encourage and recognize employee integrity, innovation and initiative.

<PAGE>   9
Risks

     This press release contains forward-looking statements that involve risks
and uncertainties. Baans's actual results 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 acquisition, such as the potential
inability to satisfy the closing conditions for the acquisition, difficulties in
the assimilation of distribution channels and other operations, and strategies,
technologies and products of the acquired company, the risk of loss of key
personnel of the acquired company, competitive conditions, diversion of
management's attention from other business concerns, risks of entering new
markets and risk associated with Aurum's business, 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 Baan and Aurum are included in Baans's Report on Form 20-F
for the year ended December 31, 1996 and Aurums's Report on Form 10-K for the
year ended December 31, 1996, each of which are on file with the Securities and
Exchange Commission.

About Baan

     The Baan Company (Nasdaq: BAANF; Amsterdam Stock Exchange: BAAN) is a
leading provider of enterprise-wide and inter-enterprise business software
solutions. Its products are fully year 2000 compliant and based on a flexible,
multi-tier client/server architecture which can scale to meet the needs of
small, medium and large enterprises. More than 2,300 companies use Baan products
at 3,600 sites worldwide. Customers include assemblers and their entire value
chain, within the automotive, electronics, process, aerospace and defense and
other project-based markets, as well as companies with other hybrid
manufacturing environments. Baan's product uniquely supports continuous business
improvements through its capability for Dynamic Enterprise Modeling. Founded in
1978, Baan has dual headquarters in Putten, The Netherlands and Menlo Park,
California. For more information, visit Baan on the World Wide Web at
http://www.baan.com.

About Aurum Software

     Aurum Software (Nasdaq: AURM) is the leading provider of customer
relationship management software. The company offers the Aurum Customer
Enterprise, a suite of client/server applications that transforms an
organization's sales, marketing and customer service functions. Multi-national
corporations across a variety of industries have adopted the Aurum Customer
Enterprise. Leading consulting integration firms, including Cambridge Technology
Partners, Deloitte & Touche, Ernst & Young, GE Information Systems, IBM, KPMG,
and Price Waterhouse, have selected Aurum as a principal vendor for enterprise
customer relationship management solutions. Aurum has headquarters in Santa
Clara, California, with offices worldwide. For more information, visit Aurum
Software on the World Wide Web at http://www.aurum.com, or call Aurum Software
at 1-800-683-8855.
<PAGE>   10



For more information:
Annette Shimada               Wim Heijting
Baan Company                  Baan Company
+1 714 490 2329               +31 342 428 980


at Baan World Press room 5/13-5/14
or 415 462 3561

Mary Cobb
Blanc & Otis for Baan
+1 415 512 0500

Matt Duncan                   Katy Boos
Aurum Software                Big Sky Communications, Inc. for Aurum
+1 408 654 3453               +1 415 851 5360
[email protected]                [email protected]






<PAGE>   11





(ii)  a conformed copy of the Agreement and Plan of Reorganization between Baan
      Company N.V., Software Acquisition Corporation and Aurum Software,
      Inc., dated as of May 13, 1997, including certain exhibits thereto.
  
<PAGE>   12








                      AGREEMENT AND PLAN OF REORGANIZATION

                                  BY AND AMONG

                                BAAN COMPANY N.V.

                     GREEN SOFTWARE ACQUISITION CORPORATION

                                       AND

                              AURUM SOFTWARE, INC.



                            DATED AS OF MAY 13, 1997



<PAGE>   13

                                TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                                                  PAGE
                                                                                                  ----
<S>                                                                                            <C>
ARTICLE I  THE MERGER................................................................................2
        1.1    The Merger............................................................................2
        1.2    Effective Time; Closing...............................................................2
        1.3    Effect of the Merger..................................................................2
        1.4    Certificate of Incorporation; Bylaws..................................................2
        1.5    Directors and Officers................................................................2
        1.6    Effect on Capital Stock...............................................................3
        1.7    Unvested Aurum Common Stock...........................................................4
        1.8    Surrender of Certificates.............................................................4
        1.9    No Further Ownership Rights in Aurum Common Stock.....................................6
        1.10   Lost, Stolen or Destroyed Certificates................................................6
        1.11   Tax and Accounting Consequences.......................................................6
        1.12   Taking of Necessary Action; Further Action............................................6

ARTICLE II  REPRESENTATIONS AND WARRANTIES OF AURUM..................................................7
        2.1    Organization of Aurum.................................................................7
        2.2    Aurum Capital Structure...............................................................8
        2.3    Obligations With Respect to Capital Stock.............................................8
        2.4    Authority.............................................................................9
        2.5    SEC Filings; Aurum Financial Statements..............................................10
        2.6    Absence of Certain Changes or Events.................................................11
        2.7    Tax..................................................................................11
        2.8    Title to Properties; Absence of Liens and Encumbrances...............................12
        2.9    Intellectual Property................................................................12
        2.10   Compliance; Permits; Restrictions....................................................14
        2.11   Litigation...........................................................................14
        2.12   Brokers' and Finders' Fees...........................................................14
        2.13   Employee Benefit Plans...............................................................15
        2.14   Employees; Labor Matters.............................................................15
        2.15   Environmental Matters................................................................15
        2.16   Agreements, Contracts and Commitments................................................16
        2.17   Pooling of Interests.................................................................17
        2.18   Statements; Proxy Statement/Prospectus...............................................17
        2.19   Board Approval.......................................................................18
        2.20   Fairness Opinion.....................................................................18
        2.21   Section 203 of the Delaware General Corporation Law Not Applicable...................18

ARTICLE III  REPRESENTATIONS AND WARRANTIES OF BAAN AND MERGER SUB..................................18
        3.1    Organization of Baan and Merger Sub..................................................18
        3.2    Baan and Merger Sub Capital Structure................................................19
        3.3    Authority............................................................................19
</TABLE>

                                                 -i-

<PAGE>   14


                                TABLE OF CONTENTS
                                   (CONTINUED)
<TABLE>
<CAPTION>
                                                                                                  PAGE
                                                                                                  ----
<S>                                                                                            <C>
        3.4    SEC Filings; Baan Financial Statements...............................................20
        3.5    Absence of Certain Changes or Events.................................................21
        3.6    Statements; Proxy Statement/Prospectus...............................................21

ARTICLE IV  CONDUCT PRIOR TO THE EFFECTIVE TIME.....................................................21
        4.1    Conduct of Business by Aurum and Baan................................................21
        4.2    Certain Actions by Aurum.............................................................21
        4.3    Baan Acquisitions....................................................................23
        4.4    No HSR Violation.....................................................................24

ARTICLE V  ADDITIONAL AGREEMENTS....................................................................24
        5.1    Proxy Statement/Prospectus; Registration Statement; Other Filings; Board
               Recommendations......................................................................24
        5.2    Meeting of Stockholders..............................................................25
        5.3    Confidentiality; Access to Information...............................................25
        5.4    No Solicitation......................................................................25
        5.5    Public Disclosure....................................................................27
        5.6    Legal Requirements...................................................................27
        5.7    Third Party Consents.................................................................27
        5.8    Notification of Certain Matters......................................................27
        5.9    Best Efforts and Further Assurances..................................................28
        5.10   Stock Options and Employee Stock Purchase Plan.......................................28
        5.11   Form S-8.............................................................................29
        5.12   Indemnification......................................................................29
        5.13   NMS and Amsterdam Exchanges Listing..................................................30
        5.14   Aurum Affiliate Agreement............................................................30
        5.15   Regulatory Filings; Reasonable Efforts...............................................30
        5.16   Tax-Free Reorganization..............................................................30
        5.17   Aurum Rights Plan....................................................................30
        5.18   Comfort Letter.......................................................................31
        5.19   Employee Benefit Schedules...........................................................31
        5.20   Employee Matters.....................................................................31

ARTICLE VI  CONDITIONS TO THE MERGER................................................................32
        6.1    Conditions to Obligations of Each Party to Effect the Merger.........................32
        6.2    Additional Conditions to Obligations of Aurum........................................32
        6.3    Additional Conditions to the Obligations of Baan and Merger Sub......................33

ARTICLE VII  TERMINATION, AMENDMENT AND WAIVER......................................................34
        7.1    Termination..........................................................................34
</TABLE>

                                      -ii-

<PAGE>   15


                                TABLE OF CONTENTS
                                   (CONTINUED)
<TABLE>
<CAPTION>
                                                                                                  PAGE
                                                                                                  ----
<S>                                                                                            <C>
        7.2    Notice of Termination; Effect of Termination.........................................35
        7.3    Fees and Expenses....................................................................36
        7.4    Amendment............................................................................36
        7.5    Extension; Waiver....................................................................36

ARTICLE VIII  GENERAL PROVISIONS....................................................................36
        8.1    Non-Survival of Representations and Warranties.......................................36
        8.2    Notices..............................................................................37
        8.3    Interpretation; Knowledge............................................................38
        8.4    Counterparts.........................................................................38
        8.5    Entire Agreement; Third Party Beneficiaries..........................................38
        8.6    Severability.........................................................................39
        8.7    Other Remedies; Specific Performance.................................................39
        8.8    Governing Law........................................................................39
        8.9    Rules of Construction................................................................39
        8.10   Assignment...........................................................................39
        8.11   WAIVER OF JURY TRIAL.................................................................40
</TABLE>


                                      -iii-

<PAGE>   16


                                           INDEX OF EXHIBITS

<TABLE>
<S>                  <C>
Exhibit A              Form of Aurum Software Voting Agreement

Exhibit B              Form of Aurum Software Stock Option Agreement

Exhibit C              Form of Aurum Software Affiliate Agreement

Exhibit D-1            Form of Employment Agreement

Exhibit D-2            Form of Non-Competition Agreement
</TABLE>



                                      -iv-

<PAGE>   17
                      AGREEMENT AND PLAN OF REORGANIZATION


        This AGREEMENT AND PLAN OF REORGANIZATION (the "AGREEMENT") is made and
entered into as of May 13, 1997, among Baan Company, N.V. a corporation
organized under the laws of The Netherlands ("BAAN"), Green Software Acquisition
Corporation, a Delaware corporation and a wholly-owned subsidiary of Baan
("MERGER SUB"), and Aurum Software, Inc., a Delaware corporation ("AURUM").

                                    RECITALS

        A.      Upon the terms and subject to the conditions of this Agreement
(as defined in Section 1.2 below), Baan and Aurum intend to enter into a
business combination transaction.

        B.      The Board of Directors of Aurum has unanimously (i) determined
that the Merger (as defined in Section 1.1) is consistent with and in
furtherance of the long-term business strategy of Aurum and fair to, and in the
best interests of, Aurum and its stockholders, (ii) approved this Agreement, the
Merger and the other transactions contemplated by this Agreement and (iii)
determined to recommend that the stockholders of Aurum adopt and approve this
Agreement and approve the Merger.

        C.      Concurrently with the execution of this Agreement, and as a
condition and inducement to Baan's willingness to enter into this Agreement,
certain affiliates of Aurum specified on Schedule I to the form of Voting
Agreement attached hereto as Exhibit A shall enter into Voting Agreements in
substantially such form (the "AURUM VOTING AGREEMENTS").

        D.      Concurrently with the execution of this Agreement, and as a
condition and inducement to Baan's willingness to enter into this Agreement,
Aurum shall execute and deliver a Stock Option Agreement in favor of Baan in
substantially the form attached hereto as Exhibit B (the "AURUM STOCK OPTION
AGREEMENT"). The Board of Directors of Aurum has approved the Aurum Stock Option
Agreement.

        E.      Concurrently with the execution of this Agreement, and as a
condition and inducement to Baan's willingness to enter into this Agreement,
certain officers of Aurum shall execute and deliver Employment and
Non-Competition Agreements in favor of Aurum following the Merger.

        F.      The parties intend, by executing this Agreement, to adopt a plan
of reorganization within the meaning of Section 368 of the Internal Revenue Code
of 1986, as amended (the "CODE").

        G.      It is also intended by the parties hereto that the Merger shall
qualify for accounting treatment as a pooling of interests.

        NOW, THEREFORE, in consideration of the covenants, promises and
representations set forth herein, and for other good and valuable consideration,
the receipt and sufficiency of which are hereby acknowledged, the parties agree
as follows:



                          
<PAGE>   18



                                    ARTICLE I

                                   THE MERGER

        1.1     The Merger. At the Effective Time (as defined in Section 1.2)
and subject to and upon the terms and conditions of this Agreement and the
applicable provisions of the Delaware General Corporation Law ("Delaware Law"),
Merger Sub shall be merged with and into Aurum (the "MERGER"), the separate
corporate existence of Merger Sub shall cease and Aurum shall continue as the
surviving corporation. Aurum as the surviving corporation after the Merger is
hereinafter sometimes referred to as the "SURVIVING CORPORATION."

        1.2     Effective Time; Closing. Subject to the provisions of this
Agreement, the parties hereto shall cause the Merger to be consummated by filing
a Certificate of Merger with the Secretary of State of the State of Delaware in
accordance with the relevant provisions of Delaware Law (the "CERTIFICATE OF
MERGER") (the time of such filing (or such later time as may be agreed in
writing by the parties and specified in the Certificate of Merger) being the
"EFFECTIVE TIME") as soon as practicable on or after the Closing Date (as herein
defined). Unless the context otherwise requires, the term "AGREEMENT" as used
herein refers collectively to this Agreement and Plan of Reorganization and the
Certificate of Merger. The closing of the Merger (the "CLOSING") shall take
place at the offices of Wilson Sonsini Goodrich & Rosati, Professional
Corporation, at a time and date to be specified by the parties, which shall be
no later than the second business day after the satisfaction or waiver of the
conditions set forth in Article VI, or at such other time, date and location as
the parties hereto agree in writing (the "CLOSING DATE").

        1.3     Effect of the Merger. At the Effective Time, the effect of the
Merger shall be as provided in this Agreement and the applicable provisions of
Delaware Law. Without limiting the generality of the foregoing, and subject
thereto, at the Effective Time all the property, rights, privileges, powers and
franchises of Aurum and Merger Sub shall vest in the Surviving Corporation, and
all debts, liabilities and duties of Aurum and Merger Sub shall become the
debts, liabilities and duties of the Surviving Corporation.

        1.4     Certificate of Incorporation; Bylaws.

                (a)     At the Effective Time, the Certificate of Incorporation
of Merger Sub, as in effect immediately prior to the Effective Time, shall be
the Certificate of Incorporation of the Surviving Corporation until thereafter
amended as provided by law and such Certificate of Incorporation of the
Surviving Corporation; provided, however, that at the Effective Time the
Certificate of Incorporation of the Surviving Corporation shall be amended so
that the name of the Surviving Corporation shall be the name of Aurum prior to
the Merger.

                (b)     The Bylaws of Merger Sub, as in effect immediately prior
to the Effective Time, shall be, at the Effective Time, the Bylaws of the
Surviving Corporation until thereafter amended.

        1.5     Directors and Officers. The initial directors of the Surviving
Corporation shall be the directors of Merger Sub immediately prior to the
Effective Time, until their respective successors are duly


                                       -2-

<PAGE>   19



elected or appointed and qualified. The initial officers of the Surviving
Corporation shall be the officers of Aurum immediately prior to the Effective
Time, until their respective successors are duly appointed.

        1.6     Effect on Capital Stock. At the Effective Time, by virtue of the
Merger and without any action on the part of Merger Sub, Aurum or the holders of
any of the following securities:

                (a)     Transfer of Aurum Common Stock. (i) Each share of Common
Stock, $.001 par value, of Aurum (the "AURUM COMMON STOCK") issued and
outstanding immediately prior to the Effective Time, (other than any shares of
Aurum Common Stock to be transferred to Baan pursuant to Section 1.6(b)) will be
automatically assigned and transferred to Baan at the Effective Time without any
further action required on the part of Aurum or the individual shareholders of
Aurum or Baan, and in exchange therefor the holders of such shares of Aurum
Common Stock will be entitled to receive (subject to Sections 1.6(e) and (f)) a
number of Baan Common Shares (the "BAAN COMMON SHARES") equal to the Exchange
Ratio (as defined herein) upon surrender of the certificate representing such
share of Aurum Common Stock in the manner provided in Section 1.8. The "EXCHANGE
RATIO" is equal to a fraction the numerator of which is $21.00 (appropriately
adjusted for any Aurum Recapitalization, as defined herein) and the denominator
of which is $59.00 (appropriately adjusted for any Baan Recapitalization, as
defined herein), subject to adjustment as provided in paragraphs (ii), (iii) and
(iv) below. Notwithstanding any failure of any holder of Aurum Common Stock to
surrender the certificate representing such shares for exchange in the manner
provided in Section 1.8, immediately following the Effective Time Aurum shall be
entitled to effect a transfer to Baan, on the books, records and stock ledger of
Aurum, of all shares of Common Stock of Aurum issued and outstanding immediately
prior to the Effective Time, and in connection therewith to cancel on such
books, records and ledger all certificates theretofore representing such shares
and to issue a new certificate or certificates therefor in the name of and to
Baan.

                (ii)    Notwithstanding the foregoing, if the average closing
price per share of the Baan Common Shares on the Nasdaq National Market over the
ten consecutive trading days ending on the trading day immediately preceding the
Closing Date (the "BAAN STOCK VALUE") is less than $50.00 and more than $40.00
per share (in each case, as appropriately adjusted for any Baan
Recapitalization) the Exchange Ratio shall be equal to the product of (i) a
fraction, the numerator of which is $21.00 (appropriately adjusted for any Aurum
Recapitalization) and the denominator of which is $59.00 (appropriately adjusted
for any Baan Recapitalization) and (ii) a fraction, the numerator of which is
$50.00 (appropriately adjusted for any Baan Recapitalization) and the
denominator of which shall be the Baan Stock Value.

                (iii)   Further notwithstanding the foregoing, if the Baan Stock
Value (calculated with reference to the scheduled Closing Date) is $40.00 or
less per share (appropriately adjusted for any Baan Recapitalization), the
Exchange Ratio shall be equal to 0.4449152542 (appropriately adjusted for any
Aurum Recapitalization or Baan Recapitalization).

                (iv)    A "AURUM RECAPITALIZATION" shall mean any stock split,
reverse stock split, stock dividend (including any dividend or distribution of
securities convertible into Aurum Common Stock), reorganization,
recapitalization or other like change with respect to Aurum Common Stock
occurring after the date hereof and prior to the Effective Time. A "BAAN
RECAPITALIZATION" shall mean any stock split, reverse stock split, stock
dividend (including any dividend or distribution of securities convertible

                                       -3-

<PAGE>   20



into Baan Common Shares), reorganization, recapitalization or other like change
with respect to Baan Common Shares occurring after the date hereof and prior to
the Effective Time.

                (b)     Transfer of Baan-Owned Stock. Each share of Aurum Common
Stock held by Aurum or owned by Merger Sub, Baan or any direct or indirect
wholly owned subsidiary of Aurum or of Baan immediately prior to the Effective
Time shall be transferred to Baan.

                (c)     Stock Options. At the Effective Time, all options to
purchase Aurum Common Stock then outstanding under Aurum's 1995 Stock Option
Plan, and 1996 Director Stock Option Plan (collectively, the "AURUM STOCK OPTION
PLANS") shall be assumed by Baan in accordance with Section 5.10 hereof or at
Baan's discretion otherwise substituted in a manner consistent with applicable
laws. At the Effective Time, in accordance with the terms of Aurum's Employee
Stock Purchase Plan (the "Aurum Employee Stock Purchase Plan"), all rights to
purchase shares of Aurum Common Stock under the Aurum Employee Stock Purchase
Plan shall be treated as set forth in Section 18 of the Aurum Employee Stock
Purchase Plan.

                (d)     Capital Stock of Merger Sub. Pursuant to the Merger,
each share of Common Stock, $0.001, of Merger Sub (the "MERGER SUB COMMON
STOCK") issued and outstanding immediately prior to the Effective Time shall be
converted into and exchanged for one validly issued, fully paid and
nonassessable share of Common Stock of the Surviving Corporation. Each stock
certificate of Merger Sub evidencing ownership of any such shares shall continue
to evidence ownership of such shares of capital stock of the Surviving
Corporation.

                (e)     Fractional Shares. No fraction of a share of Baan Common
Shares will be issued by virtue of the Merger, but in lieu thereof each holder
of shares of Aurum Common Stock who would otherwise be entitled to a fraction of
a share of Baan Common Shares (after aggregating all fractional shares of Baan
Common Shares to be received by such holder) shall receive from Baan an amount
of cash (rounded to the nearest whole cent) equal to the product of (i) such
fraction, multiplied by (ii) the average closing price of one share of Baan
Common Shares for the five (5) most recent days that Baan Common Shares has
traded ending on the trading day immediately prior to the Effective Time, as
reported on the Nasdaq National Market.

        1.7     Unvested Aurum Common Stock. To the extent that shares of Aurum
Common Stock issued prior to the Merger are subject to vesting arrangements
under which shares that are unvested as of a date of termination of employment
would be subject to repurchase by Aurum, Baan shall issue Baan Common Shares,
which upon issuance, will be subject to equivalent contractual vesting and
repurchase provisions on the same schedules and subject to the same terms,
shares to be repurchased and the repurchase price thereof shall be adjusted as
provided in Section 1.6(c).

        1.8     Surrender of Certificates.

                (a)     Exchange Agent. Prior to the Effective Time, Baan shall
select a bank or trust company in New York with assets of not less than $500
million to act as the exchange agent (the "EXCHANGE AGENT") in the Merger.



                                       -4-

<PAGE>   21



                (b)     Baan to Provide Common Stock. Promptly after the
Effective Time, Baan shall make available to the Exchange Agent for the benefit
of the Aurum shareholders the aggregate number of Baan Common Shares issuable
pursuant to Section 1.6 in exchange for outstanding shares of Aurum Common
Stock, and cash in an amount sufficient for payment in lieu of fractional shares
pursuant to Section 1.6(f) and any dividends or distributions to which holders
of shares of Aurum Common Stock may be entitled pursuant to Section 1.8(d).

                (c)     Exchange Procedures. Promptly after the Effective Time,
Baan shall cause the Exchange Agent to mail to each holder of record (as of the
Effective Time) of a certificate or certificates (the "CERTIFICATES"), which
immediately prior to the Effective Time represented outstanding shares of Aurum
Common Stock which, pursuant to the Merger, were exchanged for Baan Common
Shares pursuant to Section 1.6, cash in lieu of any fractional shares pursuant
to Section 1.6(f) and any dividends or other distributions pursuant to Section
1.8(d), (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 Baan may reasonably specify) and (ii) instructions
for use in effecting the surrender of the Certificates in exchange for
certificates representing shares of Baan Common Shares, cash in lieu of any
fractional shares pursuant to Section 1.6(f) and any dividends or other
distributions pursuant to Section 1.8(d). Upon surrender of Certificates for
cancellation to the Exchange Agent or to such other agent or agents as may be
appointed by Baan, together with such letter of transmittal, duly completed and
validly executed in accordance with the instructions thereto, the holders of
such Certificates shall be entitled to receive in exchange therefor certificates
representing the number of whole shares of Baan Common Shares, payment in lieu
of fractional shares which such holders have the right to receive pursuant to
Section 1.6(f) and any dividends or distributions payable pursuant to Section
1.8(d), and the Certificates so surrendered shall forthwith be transferred to
Baan. Until so surrendered, each outstanding Certificate that, prior to the
Effective Time, represented shares of Aurum Common Stock, will be deemed from
and after the Effective Time, for all corporate purposes to represent solely (i)
the right to receive upon the surrender thereof the number of full shares of
Baan Common Shares for which such shares of Aurum Common Stock shall have been
so exchanged and (ii) the right to receive an amount in cash in lieu of the
issuance of any fractional shares in accordance with Section 1.6(f) and any
dividends or distributions payable pursuant to Section 1.8(d).

                (d)     Distributions With Respect to Unexchanged Shares. No
dividends or other distributions declared or made after the date of this
Agreement with respect to Baan Common Shares with a record date after the
Effective Time will be paid to the holders of any unsurrendered Certificate with
respect to the shares of Baan Common Shares represented thereby until the holder
of record of such Certificate shall surrender such Certificate pursuant to
Section 1.8(c). Subject to applicable law, following surrender of any such
Certificate, the Exchange Agent shall deliver to the record holder thereof,
without interest, a certificate representing whole shares of Baan Common Shares
issued in exchange therefor along with payment in lieu of fractional shares
pursuant to Section 1.6(f) hereof and the amount of any such dividends or other
distributions with a record date after the Effective Time payable with respect
to each whole share of Baan Common Shares represented by such Certificate.

                (e)     Transfers of Ownership. If Certificates for shares of
Baan Common Shares are to be issued in a name other than that in which the
Certificate surrendered in exchange therefor is


                                       -5-

<PAGE>   22



registered, it will be a condition of the issuance thereof that the Certificate
so surrendered will be properly endorsed and otherwise in proper form for
transfer and that the persons requesting such exchange will have paid to Baan or
any agent designated by it any transfer or other taxes required by reason of the
issuance of certificates for shares of Baan Common Shares in any name other than
that of the registered holder of the Certificate so surrendered, or established
to the satisfaction of Baan or any agent designated by it that such tax has been
paid or is not payable.

                (f)     No Liability. Notwithstanding anything to the contrary
in this Section 1.8, neither the Exchange Agent, Baan, the Surviving Corporation
nor any party hereto shall be liable to a holder of shares of Baan Common Shares
or Aurum Common Stock for any amount properly paid to a public official pursuant
to any applicable abandoned property, escheat or similar law.

        1.9     No Further Ownership Rights in Aurum Common Stock. All shares of
Baan Common Shares to be issued pursuant to the Merger in exchange of shares of
Aurum Common Stock in accordance with the terms hereof (including any cash paid
in respect thereof pursuant to Section 1.6(f) and 1.8(d)) shall be deemed to
have been issued in full satisfaction of all rights pertaining to such shares of
Aurum Common Stock, and there shall be no further registration of transfers on
the records of the Surviving Corporation of shares of Aurum Common 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 transferred to Baan.

        1.10    Lost, Stolen or Destroyed Certificates. In the event any
certificate evidencing shares of Aurum Common Stock shall have been lost, stolen
or destroyed, the Exchange Agent shall issue in exchange for such lost, stolen
or destroyed certificate, upon the making of an affidavit of that fact by the
holder thereof, such shares of Baan Common Shares, cash for fractional shares,
if any, as may be required pursuant to Section 1.6(f) and any dividends or
distributions payable pursuant to Section 1.8(d); provided, however, that Baan
may, in its discretion and as a condition precedent to the issuance thereof,
require the owner of such lost, stolen or destroyed Certificate to deliver a
bond in such sum as it may reasonably direct as indemnity against any claim that
may be made against Baan, Aurum or the Exchange Agent with respect to the
Certificate alleged to have been lost, stolen or destroyed.

        1.11    Tax and Accounting Consequences.

                (a)     It is intended by the parties hereto that the Merger
shall constitute a reorganization within the meaning of Section 368 of the Code.
The parties hereto adopt this Agreement as a "plan of reorganization" within the
meaning of Sections 1.368-2(g) and 1.368-3(a) of the United States Income Tax
Regulations.

                (b)     It is intended by the parties hereto that the Merger
shall qualify for accounting treatment as a pooling of interests.

        1.12    Taking of Necessary Action; Further Action. If, at any time
after the Effective Time, any further action is necessary or desirable to carry
out the purposes of this Agreement and to vest the Surviving Corporation with
full right, title and possession to all assets, property, rights, privileges,
powers and franchises of Aurum and Merger Sub, the officers and directors of
Aurum and Merger Sub are fully


                                       -6-

<PAGE>   23



authorized in the name of their respective corporations or otherwise to take,
and will take, all such lawful and necessary action.


                                   ARTICLE II

                     REPRESENTATIONS AND WARRANTIES OF AURUM

        Aurum represents and warrants to Baan and Merger Sub, subject to the
exceptions specifically disclosed in writing in the disclosure letter
(referencing specific representations) supplied by Aurum to Baan dated as of the
date hereof and certified by a duly authorized officer of Aurum (the "AURUM
SCHEDULES"), as follows:

        2.1     Organization of Aurum.

                (a)     Aurum and each of its subsidiaries is a corporation duly
organized, validly existing and in good standing under the laws of the
jurisdiction of its incorporation; has the corporate power and authority to own,
lease and operate its assets and property and to carry on its business as now
being conducted and as proposed to be conducted; and is duly qualified or
licensed to do business and is in good standing in each jurisdiction where the
character of the properties owned, leased or operated by it or the nature of its
activities makes such qualification or licensing necessary, except where the
failure to be so qualified would not have a Material Adverse Effect (as defined
below) on Aurum.

                (b)     Aurum has delivered to Baan a true and complete list of
all of Aurum's subsidiaries, indicating the jurisdiction of incorporation of
each subsidiary and Aurum's equity interest therein. All of the outstanding
shares of capital stock of each subsidiary of Aurum is owned by Aurum, and no
third party has any option, warrant or other right to acquire any shares of
capital stock of any such subsidiary.

                (c)     Aurum has delivered or made available to Baan a true and
correct copy of the Certificate of Incorporation and Bylaws of Aurum and similar
governing instruments of each of its subsidiaries, each as amended to date, and
each such instrument is in full force and effect. Neither Aurum nor any of its
subsidiaries is in violation of any of the provisions of its Certificate of
Incorporation or Bylaws or equivalent governing instruments.

                (d)     When used in connection with Aurum, the term "MATERIAL
ADVERSE EFFECT" means, for purposes of this Agreement, any change, event or
effect that is or reasonably likely could be materially adverse to the current
or continuing business, assets (including intangible assets), financial
condition or results of operations of Aurum and its subsidiaries taken as a
whole; provided, however, that, from and after the date of the public
announcement of this Agreement, the cancellation, termination or nonrenewal of
arrangements with Aurum by suppliers, distributors or customers of Aurum or the
loss of key employees (other than those key employees who have entered into
signed employment agreements with Baan as of the date of this Agreement or
pursuant to Section 6.3(d)), or the termination of negotiations or delays in
ordering by prospective customers of Aurum, and in each such case the resultant
financial effects shall not be taken into account in determining whether there
shall have occurred a


                                       -7-

<PAGE>   24



"Material Adverse Effect" on or with respect to Aurum and its subsidiaries taken
as a whole to the extent (but only to the extent) such supplier, distributor,
customer, prospective customer or employee circumstances may reasonably be
attributed to the adverse reaction by suppliers, distributors, customers or
employees to the transactions contemplated by this Agreement (including the
adverse or potentially adverse impact on suppliers, distributors, customers,
prospective customers or employees that may result from uncertainties that may
be perceived as a result of such transactions).

        2.2     Aurum Capital Structure. The authorized capital stock of Aurum
consists of 25,000,000 shares of Common Stock, $.001 par value, of which there
were approximately 11,665,801 shares issued and outstanding as of May 12, 1997
and 5,000,000 shares of Preferred Stock, $.001 par value, of which no shares are
issued or outstanding. All outstanding shares of Aurum Common Stock are duly
authorized, validly issued, fully paid and nonassessable and are not subject to
preemptive rights created by statute, the Certificate of Incorporation or Bylaws
of Aurum or any agreement or document to which Aurum is a party or by which it
is bound. All outstanding shares of Aurum Common Stock were issued in compliance
with all applicable federal and state securities laws, except any noncompliance
which would not have a Material Adverse Effect on Aurum. As of April 30, 1997,
Aurum had reserved an aggregate of 1,432,821 shares of Aurum Common Stock, net
of exercises, for issuance to employees, consultants and non-employee directors
pursuant to the Aurum Stock Option Plans. Aurum will update the Aurum Schedules
to reflect outstanding shares and options as of the Effective Time. As of April
30, 1997, there were options outstanding to purchase an aggregate of 1,314,663
shares of Common Stock, issued to employees, consultants and non-employee
directors pursuant to the Aurum Stock Option Plans. Since April 30, 1997, all
option grants have been made consistent with past practices and in accordance
with the Aurum Stock Option Plan and Aurum's option grant guidelines. Aurum will
update the Aurum Schedules to reflect outstanding shares and options as of the
Effective Time. All shares of Aurum Common Stock subject to issuance as
aforesaid, upon issuance on the terms and conditions specified in the
instruments pursuant to which they are issuable, would be duly authorized,
validly issued, fully paid and nonassessable. The Aurum Schedules list as of
April 30, 1997, the name of the holder of such option, the exercise price of
such option, the number of shares as to which such option will have vested at
such date, the vesting schedule for such option and whether the exercisability
of such option will be accelerated in any way by the transactions contemplated
by this Agreement, and indicate the extent of acceleration, if any. As of April
30, 1997, there were 136 participants in the Aurum 1996 Employee Stock Purchase
Plan.

        2.3     Obligations With Respect to Capital Stock. Except as set forth
in Section 2.2, there are no equity securities, partnership interests or similar
ownership interests of any class of Aurum, or any securities exchangeable or
convertible into or exercisable for such equity securities, partnership
interests or similar ownership interests, issued, reserved for issuance or
outstanding. Except for securities Aurum owns, directly or indirectly through
one or more subsidiaries, there are no equity securities, partnership interests
or similar ownership interests of any class of any subsidiary of Aurum, or any
security exchangeable or convertible into or exercisable for such equity
securities, partnership interests or similar ownership interests, issued,
reserved for issuance or outstanding. Except as set forth in Section 2.2, there
are no options, warrants, equity securities, partnership interests or similar
ownership interests, calls, rights (including preemptive rights), commitments or
agreements of any character to which Aurum or any of its subsidiaries is a party
or by which it is bound obligating Aurum or any of its subsidiaries to issue,
deliver or sell, or cause to be issued, delivered or sold, or repurchase, redeem
or otherwise acquire, or


                                       -8-

<PAGE>   25



cause the repurchase, redemption or acquisition, of any shares of capital stock,
partnership interests or similar ownership interests of Aurum or any of its
subsidiaries or obligating Aurum or any of its subsidiaries to grant, extend,
accelerate the vesting of or enter into any such option, warrant, equity
security, call, right, commitment or agreement. There are no registration rights
and, to the knowledge of Aurum, with the exception of the Aurum Voting
Agreements to be entered into hereunder, there are no voting trusts, proxies or
other agreements or understandings with respect to any equity security of any
class of Aurum or with respect to any equity security, partnership interest or
similar ownership interest of any class of any of its subsidiaries. Stockholders
of Aurum are not entitled to dissenters rights under applicable state law.

        2.4     Authority.

                (a)     Aurum has all requisite corporate power and authority to
enter into this Agreement and the Aurum Stock Option Agreement and to consummate
the transactions contemplated hereby and thereby. The execution and delivery of
this Agreement and the consummation of the transactions contemplated hereby, and
the execution and delivery of the Aurum Stock Option Agreement and the
consummation of the transactions contemplated thereby, have been duly authorized
by all necessary corporate action on the part of Aurum, subject only to the
approval and adoption of this Agreement and the approval of the Merger by
Aurum's stockholders and the filing and recordation of the Certificate of Merger
pursuant to Delaware Law. A vote of the holders of at least a majority of the
outstanding shares of the Aurum Common Stock is necessary and sufficient for
Aurum's stockholders to approve and adopt this Agreement and approve the Merger.
This Agreement and the Aurum Stock Option Agreement have been duly executed and
delivered by Aurum and, assuming the due authorization, execution and delivery
by Baan and, if applicable, Merger Sub, constitute valid and binding obligations
of Aurum, enforceable in accordance with their respective terms, except as
enforceability may be limited by bankruptcy and other similar laws and general
principles of equity. The execution and delivery of this Agreement and the Aurum
Stock Option Agreement by Aurum do not, and the performance of this Agreement
and the Aurum Stock Option Agreement by Aurum will not, (i) conflict with or
violate the Certificate of Incorporation or Bylaws of Aurum or the equivalent
organizational documents of any of its subsidiaries, (ii) subject to obtaining
the approval and adoption of this Agreement and the approval of the Merger by
Aurum's stockholders as contemplated by Section 5.2 and compliance with the
requirements set forth in Section 2.4(b) below, conflict with or violate any
law, rule, regulation, order, judgment or decree applicable to Aurum or any of
its subsidiaries or by which its or any of their respective properties is bound
or affected, or (iii) result in any breach of or constitute a default (or an
event that with notice or lapse of time or both would become a default) under,
or impair Aurum's rights or alter the rights or obligations of any third party
under, or give to others any rights of termination, amendment, acceleration or
cancellation of, or result in the creation of a lien or encumbrance on any of
the properties or assets of Aurum or any of its subsidiaries pursuant to, any
material note, bond, mortgage, indenture, contract, agreement, lease, license,
permit, franchise or other instrument or obligation to which Aurum or any of its
subsidiaries is a party or by which Aurum or any of its subsidiaries or its or
any of their respective properties are bound or affected, except with respect to
clause (iii) for any such conflicts, violations, defaults or other occurrences
that would not have a Material Adverse Effect on Aurum. The Aurum Schedules list
all material consents, waivers and approvals under any of Aurum's or any of its
subsidiaries' agreements, contracts, licenses or leases required to be obtained
in connection with the consummation of the transactions contemplated hereby.


                                       -9-

<PAGE>   26



                (b)     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, foreign or
domestic ("GOVERNMENTAL ENTITY"), is required by or with respect to Aurum in
connection with the execution and delivery of this Agreement and the Aurum Stock
Option Agreement or the consummation of the Merger, except for (i) the filing of
the Certificate of Merger with the Secretary of State of the State of Delaware
and appropriate documents with the relevant authorities of other states in which
Aurum is qualified to do business, (ii) the filing of the Proxy Statement (as
defined in Section 2.19) with the Securities and Exchange Commission ("SEC") in
accordance with the Securities Exchange Act of 1934, as amended (the "EXCHANGE
ACT") and any clearance thereof by the SEC, (iii) such consents, approvals,
orders, authorizations, registrations, declarations and filings as may be
required under applicable federal, foreign state securities (or related) laws
and the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended (the
"HSR ACT"), and the securities or antitrust laws of any foreign country, and
(iv) such other consents, authorizations, filings, approvals and registrations
which if not obtained or made would not be material to Aurum or Baan or have a
material adverse effect on the ability of the parties to consummate the Merger.

        2.5     SEC Filings; Aurum Financial Statements.

                (a)     Aurum has filed all forms, reports and documents
required to be filed with the SEC since October 28, 1996 and has made available
to Baan such forms, reports and documents in the form filed with the SEC. All
such required forms, reports and documents (including those that Aurum may file
subsequent to the date hereof) are referred to herein as the "AURUM SEC
REPORTS." As of their respective dates, or in the case of registrations
statements, as of their effective dates, the Aurum SEC Reports (i) were prepared
in accordance with and complied with the requirements of the Securities Act of
1933, as amended (the "SECURITIES ACT"), or the Exchange Act, as the case may
be, and the rules and regulations of the SEC thereunder applicable to such Aurum
SEC Reports and (ii) did not at the time they were filed or, in the case of
registrations statements, become effective (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 therein or necessary in order to make the statements
therein, in the light of the circumstances under which they were made, not
misleading. None of Aurum'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 thereto) contained in the Aurum SEC
Reports (the "AURUM FINANCIALS"), including any Aurum SEC Report filed after the
date hereof until the Closing, (x) complied as to form in all material respects
with the published rules and regulations of the SEC with respect thereto, (y)
was prepared in accordance with generally accepted accounting principles
("GAAP") applied on a consistent basis throughout the periods involved (except
as may be indicated in the notes thereto) and (z) fairly presented the
consolidated financial position of Aurum and its subsidiaries as at the
respective dates thereof and the consolidated results of Aurum's 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. The balance sheet of Aurum contained in Aurum SEC Reports as of
December 31, 1996 is hereinafter referred to as the "AURUM BALANCE SHEET."
Neither Aurum nor any of its subsidiaries has any liabilities (absolute,
accrued, contingent or otherwise) of a nature required to be disclosed on a
balance sheet or


                                      -10-

<PAGE>   27



in the related notes to the consolidated financial statements prepared in
accordance with GAAP which are, individually or in the aggregate, material to
the business, results of operations or financial condition of Aurum and its
subsidiaries taken as a whole, except liabilities (i) provided for in the Aurum
Balance Sheet or the Aurum Financials and the footnotes thereto, or (ii)
incurred since the date of the Aurum Balance Sheet in the ordinary course of
business consistent with past practices and in an aggregate amount not in excess
of $5,000,000.

                (c)     Aurum has heretofore furnished to Baan a complete and
correct copy of any amendments or modifications, which have not yet been filed
with the SEC but which are required to be filed, to agreements, documents or
other instruments which previously had been filed by Aurum with the SEC pursuant
to the Securities Act or the Exchange Act.

        2.6     Absence of Certain Changes or Events. Since the date of the
Aurum Balance Sheet, Aurum has conducted its business in the ordinary course
consistent with past practice and there has not occurred: (i) any Material
Adverse Effect to Aurum; (ii) any acquisition, sale or transfer of any material
asset of Aurum or any of its subsidiaries other than in the ordinary course of
business and consistent with past practice; (iii) any material change in
accounting methods or practices (including any change in depreciation or
amortization policies or rates) by Aurum or any material revaluation by Aurum of
any of its or any of its subsidiaries' assets, except as required by concurrent
changes in GAAP; (iv) any declaration, setting aside, or payment of a dividend
or other distribution with respect to the shares of Aurum, or any direct or
indirect redemption, purchase or other acquisition by Aurum of any of its shares
of capital stock, except for the repurchase at cost of unvested shares held by
Aurum employees on the termination of their employment; (v) any material
contract entered into by Aurum or any of its subsidiaries, other than in the
ordinary course of business and as provided to Baan, or any material amendment
or termination of, or default under, any material contract to which Aurum or any
of its subsidiaries is a party or by which it is bound which would result in a
Material Adverse Effect on Aurum; or (vi) any negotiation or agreement by Aurum
or any of its subsidiaries to do any of the things described in the preceding
clauses (i) through (v) (other than negotiations with Baan and its
representatives regarding the transactions contemplated by this Agreement).

        2.7     Taxes.

                Aurum and each of its subsidiaries, and any consolidated,
combined, unitary or aggregate group for Tax (as defined below) purposes of
which Aurum or any of its subsidiaries is or has been a member, has timely filed
all Returns (as defined below) required to be filed by it (other than those that
are not, individually or in the aggregate, material), has paid all Taxes shown
thereon to be due and has provided adequate accruals in all material respects in
accordance with GAAP in its financial statements for any Taxes that have not
been paid, whether or not shown as being due on any returns. In addition, (i) no
material claim for unpaid Taxes has become a lien against the property of Aurum
or any of its subsidiaries or is being asserted against Aurum or any of its
subsidiaries, (ii) no audit of any Tax Return of Aurum or any of its
subsidiaries is being conducted by a Tax authority (A) as of the date of this
Agreement and (B) which, as of the Closing Date, has had and could reasonably be
expected to have a Material Adverse Effect on Aurum and its subsidiaries, (iii)
no extension of the statute of limitations on the assessment of any Taxes has
been granted by Aurum or any of its subsidiaries and is currently in effect (A)
as of the date of this Agreement and (B) which, as of the Closing Date, has had
and could reasonably


                                      -11-

<PAGE>   28



be expected to have a Material Adverse Effect on Aurum and its subsidiaries and
(iv) there is no agreement, contract or arrangement to which Aurum or any of its
subsidiaries is a party that may result in the payment of any amount that would
not be deductible pursuant to Sections 280G, 162 or 404 of the Code. As used
herein, "TAXES" shall mean all taxes of any kind, including, without limitation,
those on or measured by or referred to as income, gross receipts, sales, use, ad
valorem, franchise, profits, license, withholding, payroll, employment, excise,
severance, stamp, occupation, premium, value added, property or windfall profits
taxes, customs, duties or similar fees, assessments or charges of any kind
whatsoever, together with any interest and any penalties, additions to tax or
additional amounts imposed by any governmental authority, domestic or foreign.
As used herein, "RETURN" shall mean any return, report or statement required to
be filed with any governmental authority with respect to Taxes.

        2.8     Title to Properties; Absence of Liens and Encumbrances.

                (a)     The Aurum Schedules list the real property owned by
Aurum. The Aurum Schedules list each real property lease with annual lease
payments of $100,000 or more to which Aurum is a party and each amendment
thereto. All such current leases are in full force and effect, are valid and
effective in accordance with their respective terms, and there is not, under any
of such leases, any existing default or event of default (or event which with
notice or lapse of time, or both, would constitute a default) that would give
rise to a claim in an amount greater than $100,000.

                (b)     Aurum has good and valid title to, or, in the case of
leased properties and assets, valid leasehold interests in, all of its tangible
properties and assets, real, personal and mixed, used or held for use in its
business, free and clear of any liens, pledges, charges, claims, security
interests or other encumbrances of any sort ("LIENS"), except as reflected in
the Aurum Financials, the Aurum SEC Reports or in the Aurum Schedules and except
for liens for taxes not yet due and payable or liens imposed by law and incurred
in the ordinary course of business for obligations not yet due to carriers,
warehousemen, laborers, materials men and the like and such imperfections of
title and encumbrances, if any, which are not material in character, amount or
extent, and which do not materially detract from the value, or materially
interfere with the present use, of the property subject thereto or affected
thereby.

        2.9     Intellectual Property.

                (a)     Aurum (including, for all purposes under this Section
2.9, all of Aurum's subsidiaries) owns, or has a valid and perpetual license
under, all patents, trademarks, trade names, service marks, copyrights, any
applications for all of the foregoing, trade secrets and know-how that are
required for the conduct of business of Aurum (including, without limitation,
the development, production and marketing of Aurum's products) as currently
conducted (the "AURUM IP RIGHTS"), with sufficient rights for the conduct of
Aurum's business as currently conducted.

                (b)     Schedule 2.9(b) of the Aurum Schedules sets forth a
complete list of all patents, registered copyrights, registered trademarks,
trade names and service marks and any applications for all of the foregoing,
included in Aurum IP Rights, and specifies, where applicable, the jurisdictions
in which each such Aurum IP Right has been issued or registered or in which an
application for such issuance and registration has been filed, including the
respective registration or application numbers and the names of all registered
owners. Schedule 2.9(b) of Aurum Schedules sets forth the list of all material
licenses,


                                      -12-

<PAGE>   29



sublicenses and other agreements to which Aurum is a party (with subsidiaries
clearly identified) and pursuant to which Aurum or any other person is licensed
or otherwise has rights under any Aurum IP Right (excluding object code licenses
granted by Aurum to end-users in the ordinary course of business that permit use
of software products without a right to modify, distribute or sublicense the
same ("END-USER LICENSES") and excluding standard licenses granted to Aurum by
software vendors covering software which is broadly distributed by such
licensors). The execution and delivery of this Agreement by Aurum, and the
consummation of the transactions contemplated hereby, will neither cause Aurum
to be in material violation or default under any such license, sublicense or
other agreement, nor entitle any other party to any such license, sublicense or
agreement to terminate or modify such license, sublicense or agreement. Except
as set forth in Schedule 2.9(a) or 2.9(b) of the Aurum Schedules, Aurum (i) is
the sole and exclusive owner of, with all right, title and interest in and to
(free and clear of any liens or encumbrances), Aurum IP Rights, or (ii) is a
licensee under or otherwise possesses legally enforceable rights under the Aurum
IP Rights under valid and binding agreements listed in Schedule 2.9(b) of the
Aurum Schedules or excluded therefrom as permitted by this Section 2.9.

                (c)     No claims against Aurum, or to Aurum's knowledge, its
licensors or licensees with respect to Aurum IP Rights have been asserted or
are, to Aurum's knowledge, threatened by any person, nor to Aurum's knowledge,
are there any valid grounds for any claims, (i) to the effect that the
manufacture, sale, use, offer for sale, importation, reproduction, distribution
or preparation of derivative works of any of the products of Aurum infringes on
any copyright, patent issued at least 60 days prior to the date hereof,
trademark, service mark, trade secret or other proprietary right, (ii) against
the manufacture, sale, use, offer for sale, importation, reproduction,
distribution or preparation of derivative works by Aurum of any computer
software programs and applications and tangible or intangible proprietary
information or material used in Aurum's business as currently conducted or as
currently proposed to be conducted by Aurum, or (iii) challenging the ownership
by Aurum, or the validity or effectiveness of any, of Aurum IP Rights. To
Aurum's knowledge, there is no material unauthorized use, infringement or
misappropriation under any Aurum IP Rights by any third party, including any
employee or former employee of Aurum. To the knowledge of Aurum, no Aurum IP
Right or product of Aurum is subject to any outstanding decree, order, judgment,
or stipulation restricting in any manner the licensing thereof by or to Aurum.
It is Aurum's policy to have each employee, consultant or contractor of Aurum
execute a proprietary information and confidentiality agreement substantially in
the form of Aurum's standard forms of such agreement, and substantially all of
Aurum's employees, consultants and contractors have executed such an agreement.
All computer software included in Aurum's products (i) has been either created
by employees of Aurum within the scope of their employment or otherwise on a
work-for-hire basis or by consultants or contractors who have created such
software themselves and have assigned all right, title and interest they have in
such software to Aurum or (ii) is licensed to Aurum pursuant to valid and
binding agreements.

                (d)     Aurum has taken reasonable and practicable steps
designed to safeguard and maintain the secrecy and confidentiality of, and its
proprietary rights in, all Aurum IP Rights and the intellectual property rights
of third parties entrusted to them.



                                      -13-

<PAGE>   30



        2.10    Compliance; Permits; Restrictions.

                (a)     Except as disclosed in the Aurum SEC Reports filed prior
to the date hereof, neither Aurum nor any of its subsidiaries is, in any
material respect, in conflict with, or in default or violation of (i) to the
knowledge of Aurum, any law, rule, regulation, order, judgment or decree
applicable to Aurum or any of its subsidiaries or by which Aurum or any of its
subsidiaries or any of their respective properties is bound or affected, or (ii)
any material note, bond, mortgage, indenture, contract, agreement, lease,
license, permit, franchise or other instrument or obligation to which Aurum or
any of its subsidiaries is a party or by which Aurum or any of its subsidiaries
or its or any of their respective properties is bound or affected. Except as
disclosed in the Aurum SEC Reports filed prior to the date hereof, to the
knowledge of Aurum, no investigation or review by any Governmental Entity is
pending or threatened against Aurum or any of its subsidiaries, nor has any
Governmental Entity indicated an intention to conduct the same, which
investigation or review is reasonably likely to have a Material Adverse Effect
on Aurum. There is no material agreement, judgment, injunction, order or decree
binding upon Aurum or any of its subsidiaries which has or could reasonably be
expected to have the effect of prohibiting or materially impairing any business
practice of Aurum or any of its subsidiaries, any acquisition of material
property by Aurum or any of its subsidiaries or the conduct of business by Aurum
as currently conducted.

                (b)     Aurum and its subsidiaries hold all permits, licenses,
variances, exemptions, orders and approvals from governmental authorities that
are material to the operation of the business of Aurum (collectively, the "AURUM
PERMITS"). Aurum and its subsidiaries are in compliance in all material respects
with the terms of the Aurum Permits.

        2.11    Litigation. Except as disclosed in the Aurum SEC Reports filed
prior to the date hereof, there is no action, suit, proceeding, claim,
arbitration or investigation pending, or as to which Aurum or any of its
subsidiaries has received any notice of assertion nor, to Aurum's knowledge, is
there a threatened action, suit, proceeding, claim, arbitration or investigation
against Aurum or any of its subsidiaries which is reasonably likely to have a
Material Adverse Effect on Aurum. Aurum is not aware of any basis for any
action, suit, proceeding, claim, arbitration or proceeding of the type described
in the preceding sentence, and Aurum has no knowledge of any unasserted claim,
the assertion of which is likely, and which, if asserted, will seek damages, an
injunction or other legal, equitable, monetary or nonmonetary relief, which
claim individually or collectively with other such unasserted claims if granted
would have a Material Adverse Effect on Aurum. To Aurum's knowledge, no
Governmental Entity has at any time challenged or questioned in writing the
legal right of Aurum to develop, offer or sell any of its products in the
present manner or style thereof.

        2.12    Brokers' and Finders' Fees. Except for fees payable to Cowen &
Company pursuant to an engagement letter dated May 6, 1997, a copy of which has
been provided to Baan, Aurum has not incurred, nor will it incur, directly or
indirectly, any liability for brokerage or finders' fees or agents' commissions
or any similar charges in connection with this Agreement or any transaction
contemplated hereby.



                                      -14-

<PAGE>   31

        2.13   Employee Benefit Plans.

                (a)     With respect to each material employee benefit plan,
program, arrangement and contract (including, without limitation, any "employee
benefit plan" as defined in Section 3(3) of ERISA) maintained or contributed to
by Aurum or any trade or business which is under common control with Aurum
within the meaning of Section 414 of the Code (the "AURUM EMPLOYEE PLANS"),
Aurum has made available or will make available by May 31, 1997 to Baan a true
and complete copy of, to the extent applicable, (i) such Aurum Employee Plan,
(ii) the most recent annual report (Form 5500), (iii) each trust agreement
related to such Aurum Employee Plan, (iv) the most recent summary plan
description for each Aurum Employee Plan for which such a description is
required, (v) the most recent actuarial report relating to any Aurum Employee
Plan subject to Title IV of ERISA and (vi) tie most recent IRS determination
letter issued with respect to any Aurum Employee Plan.

                (b)     Each Aurum Employee Plan which is intended to be
qualified under Section 401(a) of the Code has received a favorable
determination from the IRS covering the provisions of the Tax Reform Act of 1986
stating that such Aurum Employee Plan is so qualified and nothing has occurred
since the date of such letter that could reasonably be expected to affect the
qualified status of such plan. Each Aurum Employee Plan has been operated in all
material respects in accordance with its terms and the requirements of
applicable law. Neither Aurum nor any ERISA Affiliate of Aurum has incurred or
is reasonably expected to incur any material liability under Title IV of ERISA
in connection with any Aurum Employee Plan.


        2.14    Employees; Labor Matters. Between January 1, 1996 and the date
of this Agreement, to Aurum's knowledge, no employee of Aurum (i) has violated
any employment contract, patent disclosure agreement or non competition
agreement between such employee and any former employer of such employee due to
such employee being employed by Aurum and disclosing to Aurum trade secrets or
proprietary information of such employer or (ii) has given notice to Aurum, nor
is Aurum otherwise aware that any employee intends to terminate his or her
employment with Aurum except for terminations of a nature and number that are
consistent with Aurum's prior experience. To Aurum's knowledge, there are no
activities or proceedings of any labor union to organize any employees of Aurum
or any of its subsidiaries and there are no strikes, or material slowdowns, work
stoppages or lockouts, or threats thereof by or with respect to any employees of
Aurum or any of its subsidiaries. Aurum is not, and has never been, a party to
any collective bargaining agreement. Aurum and its subsidiaries are, and since
January 1, 1996, Aurum and its subsidiaries have been in compliance in all
material respects with all applicable laws regarding employment practices, terms
and conditions of employment, and wages and hours (including, without
limitation, ERISA, WARN or any similar state or local law).

        2.15    Environmental Matters.

                (a)     Hazardous Material. Except as would not reasonably be
likely to result in a material liability to Aurum, no underground storage tanks
and no amount of any substance that has been designated by any Governmental
Entity or by applicable federal, state or local law to be radioactive, toxic,
hazardous or otherwise a danger to health or the environment, including, without
limitation, PCBs, asbestos, petroleum, urea-formaldehyde and all substances
listed as hazardous substances pursuant to the


                                      -15-

<PAGE>   32



Comprehensive Environmental Response, Compensation, and Liability Act of 1980,
as amended, or defined as a hazardous waste pursuant to the United States
Resource Conservation and Recovery Act of 1976, as amended, and the regulations
promulgated pursuant to said laws, (a "HAZARDOUS MATERIAL"), but excluding
office and janitorial supplies, are present, as a result of the actions of Aurum
or any of its subsidiaries or, to Aurum'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 thereof, that Aurum or
any of its subsidiaries has at any time owned, operated, occupied or leased.

                (b)     Hazardous Materials Activities. Except as would not
reasonably be likely to result in a material liability to Aurum, neither Aurum
nor any of its subsidiaries has transported, stored, used, manufactured,
disposed of, released or exposed its employees or others to Hazardous Materials
in violation of any law in effect on or before the Closing Date, nor has Aurum
or any of its subsidiaries disposed of, transported, sold, used, released,
exposed its employees or others to or manufactured any product containing a
Hazardous Material (collectively "HAZARDOUS MATERIALS ACTIVITIES") in violation
of any rule, regulation, treaty or statute promulgated by any Governmental
Entity in effect prior to or as of the date hereof to prohibit, regulate or
control Hazardous Materials or any Hazardous Material Activity.

                (c)     Permits. Aurum and its subsidiaries currently hold all
environmental approvals, permits, licenses, clearances and consents (the "AURUM
ENVIRONMENTAL PERMITS") necessary for the conduct of Aurum's and its
subsidiaries' Hazardous Material Activities and other businesses of Aurum and
its subsidiaries as such activities and businesses are currently being
conducted.

                (d)     Environmental Liabilities. No material action,
proceeding, revocation proceeding, amendment procedure, writ, injunction or
claim is pending, or to Aurum's knowledge, threatened concerning any Aurum
Environmental Permit, Hazardous Material or any Hazardous Materials Activity of
Aurum or any of its subsidiaries. Aurum is not aware of any fact or circumstance
which could involve Aurum or any of its subsidiaries in any material
environmental litigation or impose upon Aurum any material environmental
liability.

        2.16    Agreements, Contracts and Commitments. Except as set forth in
the Aurum Schedules, neither Aurum nor any of its subsidiaries is a party to or
is bound by:

                (a)     any employment or consulting agreement, contract or
commitment with any officer or director level employee or member of Aurum's
Board of Directors, other than those that are terminable by Aurum or any of its
subsidiaries on no more than thirty days notice without liability or financial
obligation, except to the extent general principles of wrongful termination law
may limit Aurum's or any of its subsidiaries' ability to terminate employees at
will;

                (b)     any 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;



                                      -16-

<PAGE>   33



                (c)     any agreement of indemnification or guaranty not entered
into in the ordinary course of business other than indemnification agreements
between Aurum or any of its subsidiaries and any of its officers or directors;

                (d)     any agreement, contract or commitment containing any
covenant limiting the freedom of Aurum or any of its subsidiaries to engage in
any line of business or compete with any person or granting any exclusive
distribution rights;

                (e)     any agreement, contract or commitment currently in force
relating to the disposition or acquisition of assets not in the ordinary course
of business or any ownership interest in any corporation, partnership, joint
venture or other business enterprise;

                (f)     any material joint marketing or development agreement;

                (g)     any agreement, contract or commitment currently in force
to provide or receive source code for any product, service or technology; or

                (h)     any agreement, contract or commitment currently in force
to license any third party to manufacture or reproduce any Aurum product,
service or technology except as a distributor in the normal course of business.

        Neither Aurum nor any of its subsidiaries, nor to Aurum's knowledge any
other party to a Aurum Contract (as defined below), has breached, violated or
defaulted under, or received notice that it has breached violated or defaulted
under, any of the material terms or conditions of any of the agreements,
contracts or commitments to which Aurum or any of its subsidiaries is a party or
by which it is bound of the type described in clauses (a) through (h) above (any
such agreement, contract or commitment, a "AURUM CONTRACT") in such a manner as
would permit any other party to cancel or terminate any such Aurum Contract, or
would permit any other party to seek damages, which would be reasonably likely
to cause a Material Adverse Effect on Aurum.

        2.17    Pooling of Interests. To the knowledge of Aurum, based on
consultation with its independent accountants, neither Aurum nor any of its
directors, officers, affiliates or stockholders has taken any action which would
preclude Baan's ability to account for the Merger as a pooling of interests.

        2.18    Statements; Proxy Statement/Prospectus. The information supplied
by Aurum for inclusion in the Registration Statement (as defined in Section
3.4(b)) shall not at the time the Registration Statement becomes effective under
the Securities Act contain any untrue statement of a material fact or omit to
state any material fact required to be stated therein or necessary in order to
make the statements therein not, in light of the circumstances under which they
were made, misleading. The information supplied by Aurum for inclusion in the
proxy statement/prospectus to be sent to the stockholders of Aurum in connection
with the meeting of Aurum's stockholders to consider the approval and adoption
of this Agreement and the approval of the Merger (the "AURUM STOCKHOLDERS'
MEETING") (such proxy statement/prospectus as amended or supplemented is
referred to herein as the "PROXY STATEMENT") shall not, on the date the Proxy
Statement is first mailed to Aurum's stockholders, at the time of the Aurum
Stockholders' Meeting or at the Effective Time, contain any untrue statement of
a material fact or omit


                                      -17-

<PAGE>   34



to state any material fact required to be stated therein or necessary in order
to make the statements therein, in light of the circumstances under which they
were made, not false or misleading; or omit to state any material fact necessary
to correct any statement in any earlier communication with respect to the
solicitation of proxies for the Aurum Stockholders' Meeting which has become
false or misleading. The Proxy Statement will comply as to form in all material
respects with the provisions of the Exchange Act and the rules and regulations
thereunder. If at any time prior to the Effective Time any event relating to
Aurum or any of its affiliates, officers or directors should be discovered by
Aurum which should be set forth in an amendment to the Registration Statement or
a supplement to the Proxy Statement, Aurum shall promptly inform Baan.
Notwithstanding the foregoing, Aurum makes no representation or warranty with
respect to any information supplied by Baan or Merger Sub which is contained in
any of the foregoing documents.

        2.19    Board Approval. The Board of Directors of Aurum has, as of the
date of this Agreement, unanimously determined (i) that the Merger is fair to,
and in the best interests of Aurum and its stockholders, and (ii) to recommend
that the stockholders of Aurum approve and adopt this Agreement and approve the
Merger.

        2.20    Fairness Opinion. Aurum's Board of Directors has received a
written opinion from Cowen & Company dated as of the date of the Agreement, to
the effect that as of such date, the Exchange Ratio is fair to Aurum's
stockholders from a financial point of view and has delivered to Baan a copy of
such opinion.

        2.21    Section 203 of the Delaware General Corporation Law Not
Applicable. The Board of Directors of Aurum has taken all actions so that the
restrictions contained in Section 203 of the Delaware General Corporation Law
applicable to a "business combination" (as defined in such Section 203) will not
apply to the execution, delivery or performance of this Agreement or the Stock
Option Agreement or to the consummation of the Merger or the other transactions
contemplated by this Agreement or the Stock Option Agreement.


                                   ARTICLE III

              REPRESENTATIONS AND WARRANTIES OF BAAN AND MERGER SUB

        Baan and Merger Sub represent and warrant to Aurum, subject to the
exceptions specifically disclosed in writing in the disclosure letter
(indicating the relevant Section of this Agreement) supplied by Baan to Aurum
dated as of the date hereof and certified by a duly authorized officer of Baan
(the "BAAN SCHEDULES"), as follows:

        3.1     Organization of Baan and Merger Sub.

                (a)     Each of Baan and Merger Sub is a corporation duly
organized, validly existing and in good standing, or its equivalent if any,
under the laws of the jurisdiction of its incorporation; has the corporate power
and authority to own, lease and operate its assets and property and to carry on
its business as now being conducted and as proposed to be conducted; and is duly
qualified or licensed to


                                      -18-

<PAGE>   35



do business and is in good standing in each jurisdiction where the character of
the properties owned, leased or operated by it or the nature of its activities
makes such qualification or licensing necessary, except where the failure to be
so qualified would not have a Material Adverse Effect (as defined below) on
Baan.

                (b)     Baan has delivered or made available to Aurum a true and
correct copy of the constitutive documents of Baan and Merger Sub, each as
amended to date, and each such instrument is in full force and effect. Baan is
not in violation of any of the provisions of its constitutive documents.

                (c)     When used in connection with Baan, the term "MATERIAL
ADVERSE EFFECT" means, for purposes of this Agreement, any change, event or
effect that is materially adverse to the business, assets (including intangible
assets), financial condition or results of operations of Baan and its
subsidiaries taken as a whole.

        3.2     Baan and Merger Sub Capital Structure.

                (a)     The authorized capital stock of Baan consists of
350,000,000 Common Shares, of which approximately 90,885,678 shares were issued
and outstanding as of March 31, 1997. The authorized capital stock of Merger Sub
consists of 100 shares of Common Stock, $.01 par value, all of which, as of the
date hereof, are issued and outstanding and are held by Baan. Merger Sub was
formed on May 7, 1997, for the purpose of consummating a merger and has no
material assets or liabilities except as necessary for such purpose. All
outstanding Baan Common Shares are duly authorized, validly issued, fully paid
and nonassessable and have not been issued in violation of any preemptive or
other statutory right of shareholders.

                (b)     The shares of Baan Common Shares to be issued pursuant
to the Merger, when issued in accordance with the terms and provisions of this
Agreement, will be duly authorized, validly issued, fully paid and
non-assessable and will not be subject to any preemptive or other statutory
right of shareholders and will be issued in compliance with applicable U.S.
federal and state and Netherlands securities laws.

        3.3     Authority.

                (a)     Each of Baan and Merger Sub 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 Baan and Merger Sub,
subject only to the filing and recordation of the Certificate of Merger pursuant
to Delaware Law. This Agreement has been duly executed and delivered by each of
Baan and Merger Sub and, assuming the due authorization, execution and delivery
by Aurum, constitutes the valid and binding obligation of Baan and Merger Sub,
enforceable in accordance with its terms, except as enforceability may be
limited by bankruptcy and other similar laws and general principles of equity.
The execution and delivery of this Agreement by each of Baan and Merger Sub does
not, and the performance of this Agreement by each of Baan and Merger Sub will
not, (i) conflict with or violate the Articles of Association of Baan or the
Certificate of Incorporation or Bylaws of Merger Sub, (ii) conflict with or
violate any law, rule, regulation, order, judgment or decree


                                      -19-

<PAGE>   36



applicable to Baan or Merger Sub or by which any of their respective properties
is bound or affected or (iii) result in any breach of or constitute a default
(or an event that with notice or lapse of time or both would become a default)
under, or impair Baan's rights or alter the rights or obligations of any third
party under, or give to others any rights of termination, amendment,
acceleration or cancellation of, or result in the creation of a lien or
encumbrance on any of the properties or assets of Baan or Merger Sub pursuant
to, any material note, bond, mortgage, indenture, contract, agreement, lease,
license, permit, franchise or other instrument or obligation to which Baan or
Merger Sub is a party or by which Baan or Merger Sub or any of their respective
properties are bound or affected.

                (b)     No consent, approval, order or authorization of, or
registration, declaration or filing with any Governmental Entity is required by
or with respect to Baan or Merger Sub in connection with the execution and
delivery of this Agreement or the consummation of the Merger, except for (i) the
filing of a Form F-4 Registration Statement (the "REGISTRATION STATEMENT") with
the SEC in accordance with the Securities Act and the declaration of
effectiveness of such Registration Statement by the SEC, (ii) the filing of the
Certificate of Merger with the Secretary of State of the State of Delaware,
(iii) such consents, approvals, orders, authorizations, registrations,
declarations and filings as may be required under applicable federal and state
securities laws and the HSR Act and the securities or antitrust laws of any
foreign country (including, for the avoidance of doubt, the rules and
regulations of the Amsterdam Exchanges N.V.), and (iv) such other consents,
authorizations, filings, approvals and registrations which if not obtained or
made would not be material to Baan or Aurum or have a material adverse effect on
the ability of the parties to consummate the Merger.

        3.4     SEC Filings; Baan Financial Statements.

                (a)     Baan has filed all forms, reports and documents required
to be filed with the SEC since January 1, 1996, and has made available to Aurum
such forms, reports and documents in the form filed with the SEC. All such
required forms, reports and documents (including those that Baan may file
subsequent to the date hereof) are referred to herein as the "BAAN SEC REPORTS."
As of their respective dates, the Baan SEC Reports (i) were prepared in
accordance with the requirements of the Securities Act or the Exchange Act, as
the case may be, and the rules and regulations of the SEC thereunder applicable
to such Baan SEC Reports, 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 therein or necessary in order to
make the statements therein, in the light of the circumstances under which they
were made, not misleading. None of Baan' 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 thereto) contained in Baan SEC
Reports (the "BAAN FINANCIALS"), including any Baan SEC Reports filed after the
date hereof until the Closing, (x) complied as to form in all material respects
with the published rules and regulations of the SEC with respect thereto, (y)
was prepared in accordance with GAAP applied on a consistent basis throughout
the periods involved (except as may be indicated in the notes thereto or, in the
case of unaudited interim financial statements, as may be permitted by the SEC
on Form 10-Q under the Exchange Act) and (z) fairly presented the consolidated
financial position of Baan and its subsidiaries as at the respective dates
thereof and the consolidated results of Baan'


                                      -20-

<PAGE>   37



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. The balance sheet of Baan contained in Baan SEC Reports as
of March 31, 1997 is hereinafter referred to as the "BAAN BALANCE SHEET."

        3.5     Absence of Certain Changes or Events. Since the date of the Baan
Balance Sheet through the date of this Agreement, there has not been any
Material Adverse Effect on Baan.

        3.6     Statements; Proxy Statement/Prospectus. The information supplied
by Baan for inclusion in the Registration Statement shall not at the time the
Registration Statement becomes effective under the Securities Act, contain any
untrue statement of a material fact or omit to state any material fact required
to be stated therein or necessary in order to make the statements therein not
misleading. The information supplied by Baan for inclusion in the Proxy
Statement shall not, on the date the Proxy Statement is first mailed to Aurum's
stockholders, at the time of the Aurum Stockholders' Meeting or at the Effective
Time, contain any untrue statement of a material fact or omit to state any
material fact required to be stated therein or necessary in order to make the
statements therein, in light of the circumstances under which they are made, not
false or misleading; or omit to state any material fact necessary to correct any
statement in any earlier communication with respect to the solicitation of
proxies for the Aurum Stockholders' Meeting which has become false or
misleading. If at any time prior to the Effective Time, any event relating to
Baan or any of its affiliates, officers or directors should be discovered by
Baan which should be set forth in an amendment to the Registration Statement or
a supplement to the Proxy Statement, Baan shall promptly inform Aurum.
Notwithstanding the foregoing, Baan makes no representation or warranty with
respect to any information supplied by Aurum which is contained in any of the
foregoing documents.


                                   ARTICLE IV

                       CONDUCT PRIOR TO THE EFFECTIVE TIME

        4.1     Conduct of Business by Aurum and Baan. During the period from
the date of this Agreement and continuing until the earlier of the termination
of this Agreement pursuant to its terms or the Effective Time, Aurum (which for
the purposes of this Article 4 shall include Aurum and each of its subsidiaries)
and Baan agree, except (i) as otherwise contemplated by this Agreement, or (ii)
to the extent that the other party shall otherwise consent in writing, to carry
on its business in the usual, regular and ordinary course, in substantially the
same manner as heretofore conducted, to pay its debts and taxes when due subject
to good faith disputes over such debts or taxes, to pay or perform other
material obligations when due, and use its commercially reasonable efforts
consistent with past practices and policies to preserve intact its present
business organization, keep available the services of its present officers and
employees and preserve its relationships with customers, suppliers,
distributors, licensors, licensees, and others with which it has business
dealings. Baan agrees to cause its material subsidiaries to act in accordance
with the foregoing provisions.

        4.2     Certain Actions by Aurum. In addition notwithstanding Section
4.1 above, without the prior consent of Baan, Aurum shall not do any of the
following, nor shall Aurum permit its subsidiaries to do any of the following:


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<PAGE>   38



                (a)     Waive any stock repurchase rights, accelerate, amend or
change the period of exercisability of options or restricted stock, or reprice
options granted under any employee, consultant or director stock plans or
authorize cash payments in exchange for any options granted under any of such
plans;

                (b)     Grant any severance or termination pay to any officer or
employee except payments in amounts consistent with policies and past practices
or pursuant to written agreements outstanding, or policies existing, on the date
hereof and as previously disclosed in writing to Baan, or adopt any new
severance plan;

                (c)     Transfer or license to any person or entity or otherwise
extend, amend or modify in any material respect any rights to the Aurum IP
Rights (other than in the ordinary course of business and in the best interests
of Aurum), or enter into grants of future patent rights, other than licenses in
the ordinary course of business and consistent with past practice;

                (d)     Declare or pay any dividends on or make any other
distributions (whether in cash, stock, equity securities or property) in respect
of any capital stock or split, combine or reclassify any capital stock or issue
or authorize the issuance of any other securities in respect of, in lieu of or
in substitution for any capital stock;

                (e)     Repurchase or otherwise acquire, directly or indirectly,
any shares of capital stock, or any securities convertible into shares of
capital stock, or subscriptions, rights, warrants or options to acquire any
shares of capital stock or any securities convertible into shares of capital
stock, or enter into other agreements or commitments of any character obligating
it to repurchase any such shares, warrants, options or convertible securities,
except for the repurchase at cost of unvested shares held by Aurum employees on
the termination of their employment;

                (f)     Issue, deliver, sell, authorize or propose the issuance,
delivery or sale of, any shares of capital stock or any securities convertible
into shares of capital stock, or subscriptions, rights, warrants or options to
acquire any shares of capital stock or any securities convertible into shares of
capital stock, or enter into other agreements or commitments of any character
obligating it to issue any such shares or convertible securities, other than the
issuance of (i) shares of Aurum Common Stock pursuant to the exercise of stock
options therefor outstanding as of the date of this Agreement or granted
pursuant to clause (iv), (ii) shares of Aurum Common Stock issuable to
participants in the Aurum Employee Stock Purchase Plan, consistent with past
practice, and the terms thereof, (iii) shares of the Aurum Common Stock issuable
pursuant to the Aurum Stock Option Agreement, and (iv) options to purchase Aurum
Common Stock granted at fair market value, consistent with past practices and in
accordance with the Aurum Stock Option Plans and Aurum's option grant
guidelines;

                (g)     Cause, permit or propose any amendments to any charter
document or Bylaw (or similar governing instruments of any subsidiaries);



                                      -22-

<PAGE>   39



                (h)     Acquire or agree to acquire by merging or consolidating
with, or by purchasing any equity interest in or a material portion of the
assets of, or by any other manner, any business or any corporation, partnership
interest, association or other business organization or division thereof, or
otherwise acquire or agree to acquire any assets which are material,
individually or in the aggregate, to the business of Aurum or enter into any
material joint ventures, strategic partnerships or alliances;

                (i)     Sell, lease, license, encumber or otherwise dispose of
any properties or assets which are material, individually or in the aggregate,
to the business of Aurum, except in the ordinary course of business consistent
with past practice;

                (j)     Incur any indebtedness for borrowed money (other than
ordinary course trade payables or pursuant to existing credit facilities in the
ordinary course of business) or guarantee any such indebtedness or issue or sell
any debt securities or warrants or rights to acquire debt securities of Aurum or
guarantee any debt securities of others;

                (k)     Adopt or amend any employee benefit or employee stock
purchase or employee option plan, or enter into any employment contract, pay any
special bonus or special remuneration to any director or employee other than in
the ordinary course of business consistent with past practice, or increase the
salaries or wage rates of its officers or employees other than in the ordinary
course of business, consistent with past practice;

                (l)     Pay, discharge or satisfy any claim, liability or
obligation (absolute, accrued, asserted or unasserted, contingent or otherwise),
other than any such payment, discharge or satisfaction in the ordinary course of
business;

                (m)     Make any grant of exclusive rights to any third party;

                (n)     Enter into any material partnership arrangements, joint
development agreements or strategic alliances, agreements to create standards or
agreements with "Standards" bodies;

                (o)     Take any action that would be reasonably likely to
interfere with Baan's ability to account for the Merger as a pooling of
interests whether or not otherwise permitted by the provisions of this Article
IV; or

                (p)     Agree in writing or otherwise to take any of the actions
described in Article 4 (a) through (o) above.

For purposes of the provisions of this Section 4.2, the prior consent of Baan
shall be deemed to have been received if, prior to the taking of any of the
foregoing actions, such action shall have been discussed with Amal Johnson,
Baan's Executive Vice President, and she shall have received such additional
information as she may have reasonably requested and, after such discussion and
receipt of any such additional information, she shall have not objected to the
taking of the proposed action.

        4.3     Baan Acquisitions. During the period from the date of this
Agreement and until the earlier of the termination of this Agreement pursuant to
its terms or the Effective Time, Baan shall not acquire


                                      -23-

<PAGE>   40



or agree to acquire by merging or consolidating with, or by purchasing any
equity interest in or a material portion of the assets of, any direct competitor
of Aurum in the United States if such acquisition would have a reasonable
likelihood of preventing or materially delaying the consummation of the
transactions contemplated hereby or would result in a Material Adverse Effect on
Aurum or Baan.

        4.4     No HSR Violation. During the period from the date of this
Agreement and until the earlier of the termination of this Agreement pursuant to
its terms or the Effective Time, neither party is required to take any action
pursuant to Article IV that would cause a violation of HSR.

                                    ARTICLE V

                              ADDITIONAL AGREEMENTS

        5.1     Proxy Statement/Prospectus; Registration Statement; Other
Filings; Board Recommendations.

                (a)     As promptly as practicable after the execution of this
Agreement, Aurum and Baan will prepare and file with the SEC the Proxy
Statement, and Baan will prepare and file with the SEC the Registration
Statement in which the Proxy Statement will be included as a prospectus. Each of
Aurum and Baan will respond to any comments of the SEC, will use its respective
reasonable best efforts to have the Registration Statement declared effective
under the Securities Act as promptly as practicable after such filing and will
cause the Proxy Statement to be mailed to the Aurum stockholders at the earliest
practicable time. As promptly as practicable after the date of this Agreement,
Aurum and Baan will prepare and file any other filings required under the
Exchange Act, the Securities Act or any other U.S. federal, U.S. State or
non-U.S. laws relating to the Merger and the transactions contemplated by this
Agreement (the "OTHER FILINGS"). Each of Aurum and Baan will notify the other
promptly upon the receipt of any comments from the SEC or its staff and of any
request by the SEC or its staff or any other government officials for amendments
or supplements to the Registration Statement, the Proxy Statement or any Other
Filing or for additional information and will supply the other with copies of
all correspondence between such party or any of its representatives, on the one
hand, and the SEC, or its staff or any other government officials, on the other
hand, with respect to the Registration Statement, the Proxy Statement, the
Merger or any Other Filing. The Proxy Statement, the Registration Statement and
the Other Filings will comply in all material respects with all applicable
requirements of law and the rules and regulations promulgated thereunder.
Whenever any event occurs which is required to be set forth in an amendment or
supplement to the Proxy Statement, the Registration Statement or any Other
Filing, Aurum or Baan, as the case may be, will promptly inform the other of
such occurrence and cooperate in filing with the SEC or its staff or any other
government officials, and/or mailing to stockholders of Aurum, such amendment or
supplement.

                (b)     Subject to the provisions of Section 5.4(b), the Proxy
Statement will include the recommendation of the Board of Directors of Aurum in
favor of adoption and approval of this Agreement and approval of the Merger
(except that the Board of Directors of Aurum may withdraw, modify or refrain
from making such recommendation to the extent that the Board determines, in good
faith, after consultation with outside legal counsel, that compliance with the
Board's fiduciary duties under applicable law would require it to do so).


                                      -24-

<PAGE>   41



        5.2     Meeting of Stockholders. Promptly after the date hereof, Aurum
will take all action necessary in accordance with the Delaware General
Corporation Law and its Certificate of Incorporation and Bylaws to convene the
Aurum Stockholders' Meeting to be held as promptly as practicable, and in any
event (to the extent permissible under applicable law) within 45 days after the
declaration of effectiveness of the Registration Statement, for the purpose of
voting upon this Agreement and the Merger. Subject to the provisions of Section
5.4(b), Aurum will use its reasonable best efforts to solicit from its
stockholders proxies in favor of the adoption and approval of this Agreement and
the approval of the Merger and will take all other action necessary or advisable
to secure the vote or consent of its stockholders required by the rules of the
National Association of Securities Dealers, Inc. or Delaware Law to obtain such
approvals.

        5.3     Confidentiality; Access to Information.

                (a)     The parties acknowledge that Aurum and Baan have
previously executed a Confidential Disclosure Agreement, dated as of May 8, 1997
(the "CONFIDENTIALITY AGREEMENT"), which Confidentiality Agreement will continue
in full force and effect in accordance with its terms.

                (b)     Access to Information. Each of Aurum and Baan will
afford the other party and its accountants, counsel and other representatives
reasonable access during normal business hours to the properties, books, records
and personnel of such party during the period prior to the Effective Time to
obtain all information concerning the business, including the status of product
development efforts, properties, results of operations and personnel of such
party, as the other party may reasonably request. No information or knowledge
obtained in any investigation pursuant to this Section 5.3 will affect or be
deemed to modify any representation or warranty contained herein or the
conditions to the obligations of the parties to consummate the Merger.

        5.4     No Solicitation.

                (a)     Subject to the provisions of Section 5.4(b), from and
after the date of this Agreement until the earlier of the Effective Time or
termination of this Agreement pursuant to its terms, Aurum and its subsidiaries
will not, and will instruct their respective directors, officers, employees,
representatives, investment bankers, agents and affiliates not to, directly or
indirectly, (i) solicit or knowingly encourage submission of, any Acquisition
Proposal (as defined below) by any person, entity or group (other than Baan and
its affiliates, agents and representatives), or (ii) participate in any
discussions or negotiations with, or disclose any non-public information
concerning Aurum or any of its subsidiaries to, or afford any access to the
properties, books or records of Aurum or any of its subsidiaries to, or
otherwise assist or facilitate, or enter into any agreement or understanding
with, any person, entity or group (other than Baan and its affiliates, agents
and representatives), in connection with any Acquisition Proposal with respect
to Aurum. For the purposes of this Agreement, an "ACQUISITION PROPOSAL" means
any proposal or offer relating to (i) any merger, consolidation, sale or license
of substantial assets or similar transactions involving Aurum or any of its
subsidiaries (other than sales or licenses of assets or inventory in the
ordinary course of business or as permitted under the terms of this Agreement),
(ii) sale by Aurum of any shares of capital stock of Aurum (including without
limitation by way of a tender offer or an exchange offer) except as may be
permitted pursuant to Article 4, (iii) the acquisition by any person of
beneficial ownership or a right to acquire beneficial ownership of, or the


                                      -25-

<PAGE>   42



formation of any "group" (as defined under Section 13(d) of the Exchange Act and
the rules and regulations thereunder) which beneficially owns, or has the right
to acquire beneficial ownership of, 10% or more of the then outstanding shares
of capital stock of Aurum (except for acquisitions for passive investment
purposes of not more than 15% of the then outstanding shares of capital stock of
Aurum only in circumstances where the person or group qualifies for and files a
Schedule 13G with respect thereto and does not become obligated to file a
Schedule 13D); or (iv) any public announcement of a proposal, plan or intention
to do any of the foregoing or any agreement to engage in any of the foregoing.
Aurum will immediately cease any and all existing activities, discussions or
negotiations with any parties conducted heretofore with respect to any of the
foregoing. Aurum will (i) notify Baan as promptly as practicable if it receives
any proposal or written inquiry or written request for information in connection
with an Acquisition Proposal or potential Acquisition Proposal and (ii) as
promptly as practicable notify Baan of the significant terms and conditions of
any such Acquisition Proposal. In addition, subject to the other provisions of
this Section 5.4, from and after the date of this Agreement until the earlier of
the Effective Time and termination of this Agreement pursuant to its terms,
Aurum and its subsidiaries will not, and will instruct their respective
directors, officers, employees, representatives, investment bankers, agents and
affiliates not to, directly or indirectly, make or authorize any public
statement, recommendation or solicitation in support of any Acquisition Proposal
made by any person, entity or group (other than Baan); provided, however, that
nothing herein shall prohibit Aurum's Board of Directors from taking and
disclosing to Aurum's stockholders a position with respect to a tender offer
pursuant to Rules 14d-9 and 14e-2 promulgated under the Exchange Act.

                (b)     Notwithstanding the provisions of paragraph (a) above,
prior to the Effective Time, Aurum may, to the extent the Board of Directors of
Aurum determines, in good faith, after consultation with outside legal counsel,
that the Board's fiduciary duties under applicable law require it to do so,
participate in discussions or negotiations with, and, subject to the
requirements of paragraph (c), below, furnish information to any person, entity
or group after such person, entity or group has delivered to Aurum in writing,
an unsolicited bona fide Acquisition Proposal which the Board of Directors of
Aurum in its good faith reasonable judgment determines, after consultation with
its independent legal and financial advisors, would result in a transaction more
favorable than the Merger to the stockholders of Aurum (a "AURUM ALTERNATIVE
PROPOSAL"). In addition, notwithstanding the provisions of paragraph (a) above,
in connection with a possible Acquisition Proposal, Aurum may refer any third
party to this Section 5.4 or make a copy of this Section 5.4 available to a
third party. In the event Aurum receives a Aurum Alternative Proposal, nothing
contained in this Agreement (but subject to the terms hereof) will prevent the
Board of Directors of Aurum from recommending such Aurum Alternative Proposal to
its Stockholders, if the Board determines, in good faith, after consultation
with outside legal counsel, that such action is required by its fiduciary duties
under applicable law; in such case, the Board of Directors of Aurum may
withdraw, modify or refrain from making its recommendation set forth in Section
5.1(b), and, to the extent it does so, Aurum may refrain from soliciting proxies
to secure the vote of its stockholders as may be required by Section 5.2;
provided, however, that Aurum shall (i) provide at least forty-eight (48) hours
prior notice of any Aurum Board meeting at which it is reasonably expected to
contemplate a Alternative Proposal and (ii) not recommend to its stockholders a
Aurum Alternative Proposal for a period of not less than 5 business days after
Baan's receipt of a copy of such Aurum Alternative Proposal (or a description of
the significant terms and conditions thereof, if not in writing); and provided
further, that nothing contained in this Section shall limit Aurum's obligation
to hold and convene the Aurum Stockholders' Meeting (regardless of whether the
recommendation of


                                      -26-

<PAGE>   43



the Board of Directors of Aurum shall have been withdrawn, modified or not yet
made) or to provide the Aurum stockholders with material information relating to
such meeting.

                (c)     Notwithstanding anything to the contrary in this Section
5.4, Aurum will not provide any non-public information to a third party unless:
(i) Aurum provides such non-public information pursuant to a nondisclosure
agreement with terms regarding the protection of confidential information at
least as restrictive as such terms in the Confidentiality Agreement; (ii) such
non-public information has been previously delivered to Baan and (iii) Aurum
advises Baan in writing of such disclosure, including the party to whom
disclosed.

        5.5     Public Disclosure. Baan and Aurum will consult with each other,
and to the extent practicable, agree, before issuing any press release or
otherwise making any public statement with respect to the Merger, this Agreement
or an Acquisition Proposal and will not issue any such press release or make any
such public statement prior to such consultation, except as may be required by
law or any listing agreement with a national securities exchange or association
or the rules and regulations of the Amsterdam Exchanges N.V. The parties have
agreed to the text of the joint press release announcing the signing of this
Agreement.

        5.6     Legal Requirements. Each of Baan, Merger Sub and Aurum will take
all reasonable actions necessary or desirable to comply promptly with all legal
requirements which may be imposed on them with respect to the consummation of
the transactions contemplated by this Agreement (including furnishing all
information required in connection with approvals by or filings with any
Governmental Entity, and prompt resolution of any litigation prompted hereby)
and will promptly cooperate with and furnish information to any party hereto
necessary in connection with any such filings with or investigations by any
Governmental Entity, and any other such requirements imposed upon any of them or
their respective subsidiaries in connection with the consummation of the
transactions contemplated by this Agreement. Baan will use all reasonable
efforts to take such steps as may be necessary to comply with the securities and
blue sky laws of all jurisdictions which are applicable to the issuance of Baan
Common Shares pursuant hereto. Aurum will use its commercially reasonable
efforts to assist Baan as may be necessary to comply with the securities and
blue sky laws of all jurisdictions which are applicable in connection with the
issuance of Baan Common Shares pursuant hereto.

        5.7     Third Party Consents. As soon as practicable following the date
hereof, Baan and Aurum will each use its commercially reasonable efforts to
obtain all material consents, waivers and approvals under any of its or its
subsidiaries' agreements, contracts, licenses or leases required to be obtained
in connection with the consummation of the transactions contemplated hereby.

        5.8     Notification of Certain Matters. Baan and Merger Sub will give
prompt notice to Aurum, and Aurum will give prompt notice to Baan, of the
occurrence, or failure to occur, of any event, which occurrence or failure to
occur would be reasonably likely to cause (a) any representation or warranty
contained in this Agreement and made by it to be untrue or inaccurate in any
material respect at any time from the date of this Agreement to the Effective
Time such that the conditions set forth in Section 6.2(a) or 6.3(a), as the case
may be, would not be satisfied as a result thereof or (b) any material failure
of Baan and Merger Sub or Aurum, as the case may be, or of any officer,
director, employee or agent thereof, to comply with or satisfy any covenant,
condition or agreement to be complied with or satisfied by it under


                                      -27-

<PAGE>   44



this Agreement. Notwithstanding the above, the delivery of any notice pursuant
to this section will not limit or otherwise affect the remedies available
hereunder to the party receiving such notice.

        5.9     Best Efforts and Further Assurances. Subject to the respective
rights and obligations of Baan and Aurum under this Agreement, each of the
parties to this Agreement will use its reasonable best efforts to effectuate the
Merger and the other transactions contemplated hereby and to fulfill and cause
to be fulfilled the conditions to closing under this Agreement; provided that
neither Baan nor Aurum nor any subsidiary or affiliate thereof will be required
to agree to any divestiture by itself or any of its affiliates of shares of
capital stock or of any business, assets or property, or the imposition of any
material limitation on the ability of any of them to conduct their businesses or
to own or exercise control of such assets, properties and stock. Subject to the
foregoing, each party hereto, at the reasonable request of another party hereto,
will execute and deliver such other instruments and do and perform such other
acts and things as may be necessary or desirable for effecting completely the
consummation of the transactions contemplated hereby.

        5.10    Stock Options and Employee Stock Purchase Plan.

                (a)     At the Effective Time, each outstanding option to
purchase shares of Aurum Common Stock (each a "AURUM STOCK OPTION") under the
Aurum Stock Option Plans, whether or not exercisable, will be assumed or
substituted in a manner consistent with applicable laws by Baan. Each Aurum
Stock Option so assumed or substituted in a manner consistent with the
applicable laws by Baan under this Agreement will continue to have, and be
subject to, the same terms and conditions set forth in the applicable Aurum
Stock Option Plan immediately prior to the Effective Time (including, without
limitation, any repurchase rights), except that (i) each Aurum Stock Option will
be exercisable (or will become exercisable in accordance with its terms) for
that number of whole shares of Baan Common Shares equal to the product of the
number of shares of Aurum Common Stock that were issuable upon exercise of such
Aurum Stock Option immediately prior to the Effective Time multiplied by the
Exchange Ratio, rounded to the nearest whole number of Baan Common Shares and
(ii) the per share exercise price for the Baan Common Shares issuable upon
exercise of such assumed Aurum Stock Option will be equal to the quotient
determined by dividing the exercise price per share of Aurum Common Stock at
which such Aurum Stock Option was exercisable immediately prior to the Effective
Time by the Exchange Ratio, rounded up to the nearest whole cent. As soon as
reasonably practicable, after the Effective Time, Baan will issue to each holder
of an outstanding Aurum Stock Option a notice describing the foregoing
assumption of such Aurum Stock Option by Baan.

                (b)     It is intended that Aurum Stock Options assumed by Baan
shall qualify following the Effective Time as incentive stock options as defined
in Section 422 of the Code to the extent Aurum Stock Options qualified as
incentive stock options immediately prior to the Effective Time and the
provisions of this Section 5.10 shall be applied consistent with such intent.

                (c)     Baan will reserve a sufficient number of Baan Common
Shares for issuance under Section 5.10(a) and under Section 1.6(c) hereof.



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<PAGE>   45



                (d)     Subject to the foregoing provisions requiring Baan to
assume each outstanding Aurum Stock Option, it is understood and agreed that
Baan shall not be required to assume any Stock Option Plan if impracticable or
legally impossible for Baan to do so under the laws of the Netherlands.

        5.11    Form S-8. Baan agrees to file a registration statement on Form
S-8 for the Baan Common Shares issuable with respect to assumed Aurum Stock
Options promptly after the Closing Date and no later than five days after the
Closing Date.

        5.12    Indemnification.

                (a)     From and after the Effective Time, Baan shall cause the
Surviving Corporation to fulfill and honor in all respects the obligations of
Aurum pursuant to any indemnification agreements between Aurum and its directors
and officers existing prior to the date hereof whether or not such persons
continue in their position with the Surviving Corporation following the
Effective Time. The Certificate of Incorporation and By-laws of the Surviving
Corporation will contain provisions providing for indemnification and the
limitation of liability which are substantially equivalent to those set forth in
Aurum's Certificate of Incorporation and By-laws, which provisions will not be
amended, repealed or otherwise modified from the Effective Time in any manner
that would adversely affect the rights thereunder of individuals who,
immediately prior to the Effective Time, were directors, officers, employees or
agents of Aurum, unless such modification is required by law.

                (b)     After the Effective Time, the Surviving Corporation will
to the fullest extent permitted under applicable law, indemnify and hold
harmless, each present and former director or officer of Aurum or any Aurum
subsidiary (collectively, the "INDEMNIFIED PARTIES") against any costs or
expenses (including attorneys' fees), judgments, fines, losses, claims, damages,
liabilities and amounts paid in settlement in connection with any claim, action,
suit, proceeding or investigation, whether civil, criminal administrative or
investigative, to the extent arising out of or pertaining to any action or
omission in his or her capacity as a director or officer of Aurum or any Aurum
subsidiary arising out of or pertaining to the transactions contemplated by this
Agreement for a period of six years after the date hereof. In the event of any
such claim, action, suit, proceeding or investigation (whether arising before or
after the Effective Time), (a) any counsel retained for the defense of the
Indemnified Parties for any period after the Effective Time will be reasonably
satisfactory to the Indemnified Parties, (b) after the Effective Time, the
Surviving Corporation will pay the reasonable fees and expenses of such counsel
promptly after statements therefor are received, and (c) the Surviving
Corporation will cooperate in the defense of any such matter; provided, however,
that the Surviving Corporation will not be liable for any settlement effected
without its written consent (which consent will not be unreasonably withheld);
and provided, further, that, in the event that any claim or claims for
indemnification are asserted or made within such six-year period, all rights to
indemnification in respect of any such claim or claims will continue until the
disposition of any and all such claims. The Indemnified Parties as a group may
be defended by only one law firm (in addition to local counsel) with respect to
any single action unless there is, under applicable standards of professional
conduct, a conflict on any significant issue between the positions of any two or
more Indemnified Parties.

                (c)     Baan will or will cause the Surviving Corporation to
maintain in effect directors' and officers' liability insurance covering those
persons who are currently covered by Aurum's directors'


                                      -29-

<PAGE>   46



and officers' liability insurance policy, to the extent and in such amounts that
Baan provides such coverage to its directors and officers.

                (d)     The Surviving Corporation shall pay all expenses,
including attorneys' fees, that may be incurred by any Indemnified Parties in
enforcing the indemnity and other obligations provided for in this Section 5.12.

                (e)     This Section 5.12 will survive any termination of this
Agreement and the consummation of the Merger at the Effective Time, is intended
to benefit Aurum, the Surviving Corporation and the indemnified parties, and
will be binding on all successors and assigns of the Surviving Corporation.

        5.13    NMS and Amsterdam Exchanges Listing. Baan agrees to authorize
for listing on the Nasdaq National Market and the Official Market of the
Amsterdam Exchanges N.V. the Baan Common Shares issuable, and those required to
be reserved for issuance, in connection with the Merger, upon official notice of
issuance.

        5.14    Aurum Affiliate Agreement. Set forth on the Aurum Schedules is a
list of those persons who may be deemed to be, in Aurum's reasonable judgment,
affiliates of Aurum within the meaning of Rule 145 promulgated under the
Securities Act (each a "AURUM AFFILIATE"). Aurum will provide Baan with such
information and documents as Baan reasonably requests for purposes of reviewing
such list. Aurum will use its reasonable best efforts to deliver or cause to be
delivered to Baan, as promptly as practicable on or following the date hereof,
from each Aurum Affiliate an executed affiliate agreement in substantially the
form attached hereto as Exhibit C (the "AURUM AFFILIATE AGREEMENT"), each of
which will be in full force and effect as of the Effective Time. Baan will be
entitled to place appropriate legends on the certificates evidencing any Baan
Common Shares to be received by a Aurum Affiliate pursuant to the terms of this
Agreement, and to issue appropriate stop transfer instructions to the transfer
agent for the Baan Common Shares, consistent with the terms of the Aurum
Affiliate Agreement.

        5.15    Regulatory Filings; Reasonable Efforts. As soon as may be
reasonably practicable, Aurum and Baan each shall file with the United States
Federal Trade Commission (the "FTC") and the Antitrust Division of the United
States Department of Justice ("DOJ") Notification and Report Forms relating to
the transactions contemplated herein as required by the HSR Act, as well as
comparable pre-merger notification forms required by the merger notification or
control laws and regulations of any applicable jurisdiction, as agreed to by the
parties. Aurum and Baan each shall promptly (a) supply the other with any
information which may be required in order to effectuate such filings and (b)
supply any additional information which reasonably may be required by the FTC,
the DOJ or the competition or merger control authorities of any other
jurisdiction and which the parties may reasonably deem appropriate.

        5.16    Tax-Free Reorganization. No party shall take any action either
prior to or after the Effective Time that could reasonably be expected to cause
the merger to fail to qualify as a "reorganization" under Section 368(a) of the
Code.

        5.17    Aurum Rights Plan. Prior to the Effective Time, without the
prior written consent of Baan, Aurum shall not adopt a shareholders rights plan.


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<PAGE>   47



        5.18    Comfort Letter. Coopers & Lybrand L.L.P., certified public
accountants to Aurum, shall provide a letter reasonably acceptable to Baan,
relating to their review of the financial statements relating to Aurum contained
in or incorporated by reference in the Registration Statement.

        5.19    Employee Benefit Schedules.

                (a)     On or before May 31, 1997, Aurum will provide to Baan,
for inclusion in the Aurum Schedules, an accurate and complete list of each
Aurum Employee Plan (as defined in Section 2.13) and any other plan, program,
policy, practice, contract, or agreement in effect as of the date of this
Agreement providing for compensation, severance, termination pay, performance
awards, stock or stock-related awards, fringe benefits or other employee
benefits of any kind, whether formal or informal, written or otherwise, funded
or unfunded and whether or not legally binding, which is being maintained or
contributed to by Aurum or any ERISA Affiliate (or which has been maintained or
contributed to and under which Aurum has, as of the date of this Agreement,
material obligations under) for the benefit of any current, former, or retired
employee, officer, or director of Aurum or any ERISA Affiliate.

                (b)     On or before May 31, 1997, Aurum will provide to Baan,
for inclusion in the Aurum Schedules, (i) correct and complete copies of all
documents embodying each Aurum Employee Plan including all amendments thereto;
(ii) the most recent annual actuarial valuations, if any, prepared for each
Aurum Employee Plan; (iii) the three most recent annual reports (Series 5500 and
all schedules thereto), if any, required under ERISA or the Code in connection
with each Aurum Employee Plan or related trust; (iv) if the Aurum Employee Plan
is funded, the most recent annual and periodic accounting of Aurum Employee Plan
assets; (v) the most recent summary plan description together with the most
recent summary of material modifications, if any, required under ERISA with
respect to each Aurum Employee Plan; (vi) all IRS determination letters and
rulings issued to Aurum relating to Aurum Employee Plans; (vii) all material
agreements and contracts relating to each Aurum Employee Plan, including but not
limited to, administration service agreements, group annuity contracts and group
insurance contracts; (viii) all material communications from Aurum to any
Employees relating to any amendments, terminations, establishments, increases or
decreases in benefits, acceleration of payments or vesting schedules or other
events with respect to any Aurum Employee Plan which would result in any
material liability to Aurum; and (ix) all registration statements and the most
recent prospectuses prepared in connection with each Aurum Employee Plan.

        5.20    Employee Matters. Prior to the Effective Time, Baan and Aurum
shall mutually agree upon an integration plan relating to the Merger which shall
include, among other things, provisions relating to compensation, other equity
incentive and severance for employees of Aurum. The Surviving Corporation will
not substitute any employee's health, life or disability insurance coverage
without first obtaining a waiver by the substitute carrier of any preexisting
condition that such employee may have (but only to the extent that such
condition was not a preexisting condition under the previous health care, life
or disability coverage, as applicable).




                                      -31-

<PAGE>   48



                                   ARTICLE VI

                            CONDITIONS TO THE MERGER

        6.1     Conditions to Obligations of Each Party to Effect the Merger.
The respective obligations of each party to this Agreement to effect the Merger
shall be subject to the satisfaction at or prior to the Effective Time of the
following conditions:

                (a)     Aurum Stockholder Approval. This Agreement shall have
been approved and adopted, and the Merger shall have been duly approved, by the
requisite vote under applicable law, by the stockholders of Aurum.

                (b)     Registration Statement Effective; Proxy Statement. The
SEC shall have declared the Registration Statement effective. No stop order
suspending the effectiveness of the Registration Statement or any part thereof
shall have been issued and no proceeding for that purpose, and no similar
proceeding in respect of the Proxy Statement, shall have been initiated or
threatened in writing by the SEC.

                (c)     No Order; HSR Act. No Governmental Entity shall have
enacted, issued, promulgated, enforced or entered any statute, rule, regulation,
executive order, decree, injunction or other order (whether temporary,
preliminary or permanent) which is in effect and which has the effect of making
the Merger illegal or otherwise prohibiting consummation of the Merger. All
waiting periods, if any, under the HSR Act relating to the transactions
contemplated hereby will have expired or terminated early.

                (d)     Tax Opinions. Baan and Aurum shall each have received
written opinions from their respective counsel, Wilson Sonsini Goodrich &
Rosati, Professional Corporation, and Fenwick & West LLP, in form and substance
reasonably satisfactory to them, to the effect that the Merger will constitute a
reorganization within the meaning of Section 368(a) of the Code and such
opinions shall not have been withdrawn; provided, however, that if the counsel
to either Baan or Aurum does not render such opinion, this condition shall
nonetheless be deemed to be satisfied with respect to such party if counsel to
the other party renders such opinion to such party. The parties to this
Agreement agree to make reasonable representations as requested by such counsel
for the purpose of rendering such opinions.

                (e)     NMS Listing. The Baan Common Shares issuable to
stockholders of Aurum pursuant to this Agreement and such other shares required
to be reserved for issuance in connection with the Merger shall have been
authorized for listing on the Nasdaq National Market upon official notice of
issuance.

        6.2     Additional Conditions to Obligations of Aurum. The obligation of
Aurum to consummate and effect the Merger shall be subject to the satisfaction
at or prior to the Effective Time of each of the following conditions, any of
which may be waived, in writing, exclusively by Aurum:

                (a)     Representations and Warranties. The representations and
warranties of Baan and Merger Sub contained in this Agreement shall be true and
correct in all material respects as of the date


                                      -32-

<PAGE>   49



of this Agreement. In addition, the representations and warranties of Baan and
Merger Sub contained in this Agreement shall be true and correct in all material
respects on and as of the Effective Time except for changes contemplated by this
Agreement and except for those representations and warranties which address
matters only as of a particular date (which shall remain true and correct as of
such particular date), with the same force and effect as if made on and as of
the Effective Time, except in such cases (other than the representation in
Section 3.2) where the failure to be so true and correct would not have a
Material Adverse Effect on Baan. Aurum shall have received a certificate with
respect to the foregoing signed on behalf of Baan by an authorized officer of
Baan;

                (b)     Agreements and Covenants. Baan and Merger Sub shall have
performed or complied in all material respects with all agreements and covenants
required by this Agreement to be performed or complied with by them on or prior
to the Effective Time, and Aurum shall have received a certificate to such
effect signed on behalf of Baan by an authorized officer of Baan; and

                (c)     Material Adverse Effect. No Material Adverse Effect with
respect to Baan shall have occurred since the date of this Agreement.

        6.3     Additional Conditions to the Obligations of Baan and Merger Sub.
The obligations of Baan and Merger Sub to consummate and effect the Merger shall
be subject to the satisfaction at or prior to the Effective Time of each of the
following conditions, any of which may be waived, in writing, exclusively by
Baan:

                (a)     Representations and Warranties. The representations and
warranties of Aurum contained in this Agreement shall have been true and correct
in all material respects as of the date of this Agreement. The representations
and warranties of Aurum hereunder shall be deemed not to be true and correct in
all material respects on the date of this Agreement only if the aggregate amount
of losses or damages reasonably related to, arising out of or expected to arise
out of any breach of such representations and warranties are reasonably expected
to exceed $5,000,000 (it being understood that any losses or damages as a result
of the adverse or potentially adverse impact of the transactions contemplated
hereby on the relationship between Aurum and Beologics, or any uncertainties
created with Beologics as a result of the transactions contemplated hereby,
including without limitation any resultant writeoffs, shall not be measured
against such $5,000,000 threshold). In addition, the representations and
warranties of Aurum contained in this Agreement shall be true and correct in all
material respects on and as of the Effective Time except for changes
contemplated by this Agreement and except for those representations and
warranties which address matters only as of a particular date (which shall
remain true and correct as of such particular date), with the same force and
effect as if made on and as of the Effective Time, except in such cases (other
than the representations in Sections 2.2, 2.3 and 2.20) where the failure to be
so true and correct would not have a Material Adverse Effect on Aurum. Baan
shall have received a certificate with respect to the foregoing signed on behalf
of Aurum by the Chief Executive Officer and the Chief Financial Officer of
Aurum;

                (b)     Agreements and Covenants. Aurum shall have performed or
complied in all material respects with all agreements and covenants required by
this Agreement to be performed or complied with by it on or prior to the
Effective Time, and the Baan shall have received a certificate to such effect
signed on behalf of Aurum by the President and the Chief Financial Officer of
Aurum; and


                                      -33-

<PAGE>   50



                (c)     Material Adverse Effect. No Material Adverse Effect with
respect to Aurum shall have occurred since the date of this Agreement.

                (d)     Employment and Noncompetition Agreements. Employment and
Noncompetition Agreements substantially in the forms attached hereto as Exhibit
D-1 and D-2 shall have been entered into by the individuals set forth on Exhibit
I thereto and such agreements shall be in full force and effect.

                (e)     Opinion of Accountants. Each of Baan and Aurum shall
have received letters from each of Moret Ernst & Young and Coopers & Lybrand
L.L.P., each dated within two (2) business days prior to the Effective Time,
regarding those firms' concurrence with Baan's managements' and Aurum's
managements' conclusions as to the appropriateness of pooling of interest
accounting for the Merger under Accounting Principles Board Opinion No. 16, if
the Merger is consummated in accordance with this Agreement.

                (f)     Consents. Aurum shall have obtained all material
consents, waivers and approvals required in connection with the consummation of
the transactions contemplated hereby under the agreements, contracts, licenses
or leases set forth on Schedule 6.3(f).


                                   ARTICLE VII

                        TERMINATION, AMENDMENT AND WAIVER

        7.1     Termination. This Agreement may be terminated at any time prior
to the Effective Time of the Merger, whether before or after approval of the
Merger by the stockholders of Aurum:

                (a)     by mutual written consent duly authorized by the Boards
of Directors of Baan and Aurum;

                (b)     by either Aurum or Baan if the Merger shall not have
been consummated by October 14, 1997 for any reason; provided, however, that (i)
if the failure of the Merger to occur prior to such date shall have resulted
solely from the failure to obtain any necessary governmental approval, clearance
or consent (including termination or waiver of all HSR waiting periods and
clearance of the Registration Statement by the SEC) such date for termination
shall be automatically extended to the date upon which such governmental
approval, clearance or consent is obtained (but not beyond December 13, 1997)
and (ii) the right to terminate this Agreement under this Section 7.1(b) shall
not be available to any party whose action or failure to act has been a
principal cause of or resulted in the failure of the Merger to occur on or
before such date and such action or failure to act constitutes a breach of this
Agreement;

                (c)     by either Aurum or Baan if a Governmental Entity shall
have issued an order, decree or ruling or taken any other action (an "ORDER"),
in any case having the effect of permanently restraining, enjoining or otherwise
prohibiting the Merger, which order, decree or ruling is final and
nonappealable;



                                      -34-

<PAGE>   51



                (d)     by either Aurum or Baan if the required approval of the
stockholders of Aurum contemplated by this Agreement shall not have been
obtained by reason of the failure to obtain the required vote at a meeting of
Aurum stockholders duly convened therefor or at any adjournment thereof
(provided that the right to terminate this Agreement under this Section 7.1(d)
shall not be available to Aurum where the failure to obtain Aurum stockholder
approval shall have been caused by the action or failure to act of Aurum in
breach of this Agreement);

                (e)     by Baan, if the Board of Directors of Aurum accepts or
recommends a Aurum Alternative Proposal to the stockholders of Aurum, or if the
Board of Directors of Aurum shall have withheld, withdrawn or modified in a
manner adverse to Baan its recommendation in favor of adoption and approval of
this Agreement and approval of the Merger;

                (f)     by Aurum, upon a breach of any representation, warranty,
covenant or agreement on the part of Baan set forth in this Agreement, or if any
representation or warranty of Baan shall have become untrue, in either case such
that the conditions set forth in Section 6.2(a) or Section 6.2(b) would not be
satisfied as of the time of such breach or as of the time such representation or
warranty shall have become untrue, provided that if such inaccuracy in Baan's
representations and warranties or breach by Baan is curable by Baan through the
exercise of its commercially reasonable efforts, then Aurum may only terminate
this Agreement under this Section 7.1(f) if the breach is not cured within ten
(10) days following the date of written notice from Aurum of such breach,
provided that Baan continues to exercise such commercially reasonable efforts to
cure such breach; or

                (g)     by Baan, upon a breach of any representation, warranty,
covenant or agreement on the part of Aurum set forth in this Agreement, or if
any representation or warranty of Aurum shall have become untrue, in either case
such that the conditions set forth in Section 6.3(a) or Section 6.3(b) would not
be satisfied as of the time of such breach or as of the time such representation
or warranty shall have become untrue, provided, that if such inaccuracy in
Aurum's representations and warranties or breach by Aurum is curable by Aurum
through the exercise of its commercially reasonable efforts, then Baan may only
terminate this Agreement under this Section 7.1(g) if the breach is not cured
within ten (10) days the date of written notice from Baan of such breach,
provided that Aurum continues to exercise such commercially reasonable efforts
to cure such breach.

        7.2     Notice of Termination; Effect of Termination. Any termination of
this Agreement under Section 7.1 above will be effective immediately upon the
delivery of written notice of the terminating party to the other parties hereto.
In the event of the termination of this Agreement as provided in Section 7.1,
this Agreement shall be of no further force or effect, except (i) as set forth
in this Section 7.2, Section 7.3 and Article 8 (miscellaneous), each of which
shall survive the termination of this Agreement, and (ii) nothing herein shall
relieve any party from liability for any breach of this Agreement. No
termination of this Agreement shall affect the obligations of the parties
contained in the Confidentiality Agreement or the Stock Option Agreement, all of
which obligations shall survive termination of this Agreement in accordance with
their terms. A party seeking to terminate this Agreement based on a Material
Adverse Effect on the other party shall have the burden of proof to demonstrate
all elements of the Material Adverse Effect, on the terms set forth herein,
shall have occurred.



                                      -35-

<PAGE>   52



        7.3     Fees and Expenses.

                (a)     General. Except as set forth in this Section 7.3, all
fees and expenses incurred in connection with this Agreement and the
transactions contemplated hereby shall be paid by the party incurring such
expenses whether or not the Merger is consummated; provided, however, that Baan
and Aurum shall share equally all fees and expenses, other than attorneys' and
accountants fees and expenses, incurred in relation to the printing and filing
of the Proxy Statement (including any preliminary materials related thereto) and
the Registration Statement (including financial statements and exhibits) and any
amendments or supplements thereto.

                (b)     Aurum Payments. In the event that this Agreement is
terminated pursuant to either Section 7.1(d), 7.1(e) or 7.1(g), Aurum shall
immediately pay to Baan (by wire transfer or cashier's check) the sum of
$2,500,000; provided that such payment shall not be due if (i) in the case of
termination under Section 7.1(d), the failure to obtain the required stockholder
approval is primarily the result of a Material Adverse Effect on Baan or (ii) in
the case of termination under Section 7.1(e), Aurum accepts or recommends a
Aurum Alternative Proposal, or the Board of Directors of Aurum withholds,
withdraws or modifies its recommendation in favor of adoption and approval of
this Agreement and approval of the Merger, primarily as a result of a Material
Adverse Effect on Baan.

        7.4     Amendment. Subject to applicable law, this Agreement may be
amended by the parties hereto at any time by execution of an instrument in
writing signed on behalf of each of the parties hereto.

        7.5     Extension; Waiver. At any time prior to the Effective Time any
party hereto may, to the extent legally allowed, (i) extend the time for the
performance of any of the obligations or other acts of the other parties hereto,
(ii) waive any inaccuracies in the representations and warranties made to such
party contained herein or in any document delivered pursuant hereto and (iii)
waive compliance with any of the agreements or conditions for the benefit of
such party contained herein. Any agreement on the part of a party hereto to any
such extension or waiver shall be valid only if set forth in an instrument in
writing signed on behalf of such party. Delay in exercising any right under this
Agreement shall not constitute a waiver of such right.


                                  ARTICLE VIII

                               GENERAL PROVISIONS

        8.1     Non-Survival of Representations and Warranties. The
representations and warranties of Aurum, Baan and Merger Sub contained in this
Agreement shall terminate at the Effective Time, and only the covenants that by
their terms survive the Effective Time shall survive the Effective Time.



                                      -36-

<PAGE>   53



        8.2     Notices. All notices and other communications hereunder shall be
in writing, shall be effective when received, and shall in any event be deemed
to have been received (i) when delivered, if delivered personally or by
commercial delivery service, (ii) five (5) business days after deposit with U.S.
Mail, if mailed by registered or certified mail (return receipt requested),
(iii) one (1) business day after the business day of deposit in the United
States with Federal Express or similar overnight courier, for next day delivery
(or, two (2) business days after such deposit if deposited for second business
day delivery), if delivered by such means, or (iv) one (1) business day after
delivery by facsimile transmission with copy by U.S. Mail, if sent via facsimile
plus mail copy (with acknowledgment of complete transmission), to the parties at
the following addresses (or at such other address for a party as shall be
specified by like notice):

               (a)     Baan Company N.V.
                       Zonneoordlaan 17
                       P.O. Box 250
                       6710 BG Ede
                       THE NETHERLANDS
                       Attention: General Counsel and Secretary of the Board
                       Telephone No.:  31-318-696606
                       Facsimile No.: 31-318-651751

                       with a copy to:

                       Amal Johnson
                       Baan U.S.A. Inc.
                       4600 Bohannon Drive
                       Suite 105
                       Menlo Park, CA 94025

                       and a copy to:

                       Wilson Sonsini Goodrich & Rosati, P.C.
                       650 Page Mill Road
                       Palo Alto, California 94304-1050
                       Attention: Mark Bertelsen, Esq.
                                    Howard Zeprun, Esq.
                       Telephone No.:  (415) 493-9300
                       Telecopy No.:    (415) 493-6811



                                      -37-

<PAGE>   54



               (a)     if to Aurum to:

                       Aurum Software, Inc.
                       3385 Scott Boulevard
                       Santa Clara, California  95054-3115
                       Attention:  Mary E. Coleman
                       Telephone No.:  (408) 986-8100
                       Telecopy No.:     (408) 654-3400

                       with a copy to:

                       Fenwick & West LLP
                       Two Palo Alto Square
                       Palo Alto, CA  94305
                       Attention:  Jacqueline Daunt, Esq.
                       Telephone No.:  (415) 494-0600
                       Telecopy No.:    (415) 494-1417

        8.3     Interpretation; Knowledge.

                (a)     When a reference is made in this Agreement to Exhibits,
such reference shall be to an Exhibit to 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 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. When reference is made herein to "THE BUSINESS OF" an entity,
such reference shall be deemed to include the business of all direct and
indirect subsidiaries of such entity. Reference to the subsidiaries of an entity
shall be deemed to include all direct and indirect subsidiaries of such entity.

                (b)     As it relates to Aurum, the term "KNOWLEDGE" means, with
respect to any matter in question, that any of the Chief Executive Officer,
Chief Financial Officer, Controller or Chief Technology Officer, as have actual
knowledge of such matter; and (b) as it relates to Baan, the term "KNOWLEDGE"
means, with respect to any matter in question that any of the Chief Executive
Officer, Chief Financial Officer, General Counsel, Staff Counsel, Executive Vice
President or any manager who in the ordinary course of his duties, have
knowledge of a specific matter.

        8.4     Counterparts. This Agreement may be executed in one or more
counterparts, 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 party, it being understood that all
parties need not sign the same counterpart.

        8.5     Entire Agreement; Third Party Beneficiaries. This Agreement and
the documents and instruments and other agreements among the parties hereto as
contemplated by or referred to herein, including Aurum Schedules (a) constitute
the entire agreement among the parties with respect to the subject matter hereof
and supersede all prior agreements and understandings, both written and oral,


                                      -38-

<PAGE>   55



among the parties with respect to the subject matter hereof, it being understood
that the Confidentiality Agreement shall continue in full force and effect until
the Closing and shall survive any termination of this Agreement; and (b) are not
intended to confer upon any other person any rights or remedies hereunder,
except as specifically provided in Sections 1.6(c), 5.10, 5.11, 5.12 and 5.13.

        8.6     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.

        8.7     Other Remedies; Specific Performance. Except as otherwise
provided herein, any and all remedies herein expressly conferred upon a party
will be deemed cumulative with and not exclusive of any other remedy conferred
hereby, or by law or equity upon such party, and the exercise by a party of any
one remedy will not preclude the exercise of any other remedy. The parties
hereto agree that irreparable damage would occur in the event that any of the
provisions of this Agreement were not performed in accordance with their
specific terms or were otherwise breached. It is accordingly agreed that the
parties shall be entitled to seek an injunction or injunctions to prevent
breaches of this Agreement and to enforce specifically the terms and provisions
hereof in any court of the United States or any state having jurisdiction, this
being in addition to any other remedy to which they are entitled at law or in
equity.

        8.8     Governing Law. This Agreement shall be governed by and construed
in accordance with the laws of the State of Delaware, regardless of the laws
that might otherwise govern under applicable principles of conflicts of law
thereof; provided that issues involving the corporate governance of any of the
parties hereto shall be governed by their respective jurisdictions of
incorporation. Each of the parties hereto irrevocably consents to the exclusive
jurisdiction of any state or federal court within the Northern District of
California, in connection with any matter based upon or arising out of this
Agreement or the matters contemplated herein, other than issues involving the
corporate governance of any of the parties hereto, agrees that process may be
served upon them in any manner authorized by the laws of the State of California
for such persons and waives and covenants not to assert or plead any objection
which they might otherwise have to such jurisdiction and such process.

        8.9     Rules of Construction. The parties hereto agree that they have
been represented by counsel during the negotiation and execution of this
Agreement and, therefore, waive the application of any law, regulation, holding
or rule of construction providing that ambiguities in an agreement or other
document will be construed against the party drafting such agreement or
document.

        8.10    Assignment. No party may assign either this Agreement or any of
its rights, interests, or obligations hereunder without the prior written
approval of the of the other party. Subject to the preceding sentence, this
Agreement shall be binding upon and shall inure to the benefit of the parties
hereto and their respective successors and permitted assigns.



                                      -39-

<PAGE>   56



        8.11    WAIVER OF JURY TRIAL. EACH OF BAAN, AURUM AND MERGER SUB HEREBY
IRREVOCABLY WAIVES ALL RIGHT TO TRIAL BY JURY IN ANY ACTION, PROCEEDING OR
COUNTERCLAIM (WHETHER BASED ON CONTRACT, TORT OR OTHERWISE) ARISING OUT OF OR
RELATING TO THIS AGREEMENT OR THE ACTIONS OF BAAN, AURUM OR MERGER SUB IN THE
NEGOTIATION, ADMINISTRATION, PERFORMANCE AND ENFORCEMENT HEREOF.


                                      *****



                                      -40-

<PAGE>   57



        IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
executed by their duly authorized respective officers as of the date first
written above.


                      BAAN COMPANY N.V.


                      By:   /s/ Amal M. Johnson
                         ---------------------------------------
                         Name:  Amal M. Johnson
                         Title: Executive Vice President, Baan Affiliates
                                and Marketing

                      GREEN SOFTWARE ACQUISITION CORPORATION


                      By:   /s/ Susanne Hereford
                         ---------------------------------------
                         Name:  Susanne Hereford
                         Title: Secretary


                      AURUM SOFTWARE, INC.


                      By:   /s/ Mary E. Coleman
                         ---------------------------------------
                         Name:  Mary E. Coleman
                         Title: President and Chief Executive Officer

















                       **** REORGANIZATION AGREEMENT ****

<PAGE>   58
                                                                       EXHIBIT A

                          STOCKHOLDER VOTING AGREEMENT

        This Stockholder Voting Agreement entered into as of May 13, 1997 (the
"Agreement") by and among Baan Company N.V., a corporation organized under the
law of The Netherlands ("Acquiror"), Green Software Acquisition Corporation, a
Delaware corporation and a wholly-owned subsidiary of Acquiror ("Merger Sub"),
and the undersigned stockholders (the "Major Stockholders") of Aurum Software,
Inc., a Delaware corporation ("Target"). Capitalized terms not defined herein
have the meanings assigned to them in the Agreement and Plan of Reorganization
(the "Merger Agreement") dated the date hereof by and among Acquiror, Merger Sub
and Target.

                                    RECITALS:

        WHEREAS, pursuant to the Merger Agreement, Acquiror, Merger Sub and
Target have agreed to merge (the "Merger") Merger Sub with and into Target on
the terms and conditions set forth therein; and

        WHEREAS, to induce Acquiror to enter into the Merger Agreement, each of
the Major Stockholders, as a principal stockholder of Target, has agreed to
enter into this Agreement;

        NOW, THEREFORE, in consideration of the premises and the mutual
agreements, provisions and covenants contained in this Agreement, the parties
hereby agree as follows:

        1.1.    Covenants and Agreements. Each of the Major Stockholders hereby
covenants and agrees with Acquiror and Merger Sub as follows:

                1.1(a)  Other Negotiations. It agrees to comply with the
provisions of Section 5.4 (Solicitation) of the Merger Agreement.

                1.1(b) Agreement to Vote Shares. At every meeting of the
stockholders of Target held on or prior to the Expiration Date (which shall mean
the earliest to occur of (i) the closing, consummation and effectiveness of the
Merger or (ii) such time as the Merger Agreement is terminated in accordance
with its terms), and at every adjournment thereof, and on every action or
approval by written consent of the stockholders of Target, unless otherwise
directed in writing by Acquiror, it shall vote all shares of Target capital
stock owned by it in favor of approval and adoption of the Merger Agreement and
the Merger and any matter that could reasonably be expected to facilitate the
Merger.

                1.1(c) Agreement to Grant Proxy. It shall execute and deliver to
Acquiror concurrently with the signing of this Agreement a valid and binding
irrevocable proxy in the form attached hereto as Exhibit A granting Acquiror (or
its designees) the authority to vote its shares of capital stock of Target in
accordance with and subject to the limitations of Section 1.1(b), which shall
expire on the Expiration Date.

                1.1(d) No Proxy Solicitations. Except as required by law,
including actions which it determines upon the written advice of legal counsel
are required pursuant to its fiduciary duties as a Director (as defined below)
under applicable law, it shall not, and will not permit any person under its
control to (i) solicit proxies or become a "participant" in a "solicitation" (as
such terms are defined in Regulation 14A under the Exchange Act) with respect to
an Acquisition Proposal; or (ii) initiate a stockholders' vote or action by
consent of Target stockholders with respect to an Acquisition Proposal.




<PAGE>   59

                1.1(e) Obligations as Director and/or Officer. If at any time
prior to the expiration of this Agreement, the Major Stockholder or a
representative of the Major Stockholder is a member of the Board of Directors of
Target ("Director") or an officer of Target, nothing in this Agreement shall
limit or restrict the Director or officer in acting in his capacity as a
Director or officer, as the case may be, of Target and exercising his fiduciary
duties and responsibilities, it being agreed and understood that this Agreement
shall apply to the Major Stockholder solely in its capacity as a stockholder and
shall not apply to the Director's or officer's actions, judgments or decisions
as a Director or officer of Target.

                1.1(f) Cooperation. It shall cooperate fully with Target,
Acquiror and Merger Sub in furnishing any information or performing any action
reasonably requested by any such party, which information or action is necessary
or appropriate for the speedy and successful consummation of the transactions
contemplated by the Merger Agreement or is necessary or appropriate for the
corporate purposes of Acquiror and is consistent with the obligations herein.

        2.1     Representations and Warranties of Major Stockholders. Each of
the Major Stockholders hereby represents and warrants to Acquiror and Merger Sub
as follows:

                2.1(a) Existence; Authorization; Binding Agreement; Ownership of
Stock. If the Major Stockholder is a corporation, partnership, limited liability
company or trust, (i) it is duly organized, validly existing and in good
standing under the laws of its jurisdiction of organization and (ii) the
execution, delivery and performance by the Major Stockholder of this Agreement
are within its power and authority and have been duly authorized by all
necessary action on the part of the Major Stockholder. The Agreement constitutes
a valid and binding agreement of the Major Stockholder, enforceable against the
Major Stockholder in accordance with its terms. The Major Stockholder is the
record and beneficial owner of the shares of Target Common Stock set forth in
the Affiliate Agreement, and owns all such shares free and clear of any and all
liens, pledges, charges, security interests, restrictions or encumbrances of any
kind or any rights of first refusal (other than in favor of Target), voting
trusts, proxies or other arrangements or understandings, whether written or
oral, and the Major Stockholder has the sole and exclusive right and power to
exercise all voting rights and other rights with respect to such shares.

        3.1     Survival; Termination.

                (a) All representations and warranties in this Agreement shall
expire upon the Closing. Any investigation or other examination that may have
been made or may be made at any time by or on behalf of the party to whom
representations and warranties are made shall not limit, diminish or in any way
affect the representations and warranties in this Agreement, and the parties may
rely on the representations and warranties in this Agreement regardless of any
information obtained by them by any investigation, examination or otherwise.

                (b) The covenants contained in Sections 1.1(a), 1.1(b), 1.1(c),
1.1(d) and 1.1(f), (but not any liability for any breach thereof) shall
terminate on the Expiration Date. All other covenants contained in this
Agreement shall survive the Merger.

                (c) This Agreement shall terminate in all respects upon
termination of the Merger Agreement (but not any liability for any breach
hereof).



                                       -2-

<PAGE>   60



        3.2 Specific Performance. Each of the parties to this Agreement hereby
acknowledges that the other party will have no adequate remedy at law if it
fails to perform any of its obligations under this Agreement. In such event,
each of the parties agrees that the other party shall have the right, in
addition to any other rights it may have (whether at law or in equity), to
specific performance of this Agreement.

        3.3 Binding Effect and Assignment. This Agreement and all of the
provisions hereof shall be binding upon and inure to the benefit of the parties
hereto and their respective successors and permitted assigns, but, except as
otherwise specifically provided herein, neither this Agreement nor any of the
rights, interests or obligations of the parties hereto may be assigned by either
of the parties without prior written consent of the other.

        3.4 Partnership. Acquiror and Merger Sub agree that if the Major
Stockholder is a limited partnership, in no event shall the Major Stockholder's
general and limited partners be liable for any of the Major Stockholder's
obligations under this Agreement.

        3.5 Entire Agreement. This Agreement and the Merger Agreement (together
with all other documents delivered pursuant thereto) constitute the entire
agreement between the parties and supersede all prior agreements and
understandings between the parties with respect to the subject matter hereof.

        3.6     Amendment or Modification. This Agreement may not be modified,
amended, altered or supplemented except upon the execution and delivery of a
written agreement executed by the parties hereto.

        3.7 No Waiver. The failure of any party hereto to enforce at any time
any of the provisions of this Agreement shall in no way be construed to be a
waiver of any such provision, nor in any way to affect the validity of this
Agreement or any part hereof or the right of such party thereafter to enforce
each and every such provision. No waiver of any breach of or non-compliance with
this Agreement shall be held to be a waiver of any other or subsequent breach or
non-compliance.

        3.8 Notices. All notices, requests, claims, demands and other
communications under this Agreement shall be in writing and shall be deemed to
have been duly given when received at the addresses set forth in the Merger
Agreement, in the case of Acquiror, Merger Sub, and the books and records of
Target, in the case of the Major Stockholder, or to such other address as any
party may have furnished to the others in writing in accordance herewith, except
that notices of change of address shall only be effective upon receipt.

        3.9 Law Governing. This Agreement shall be governed by and construed and
enforced in accordance with the laws of the State of Delaware, without giving
effect to the principles of conflicts of law thereof. Each of the parties hereto
irrevocably consents to the exclusive jurisdiction of the courts located within
the State of Delaware in connection with any matter based upon or arising out of
this Agreement or the matters contemplated herein, agrees that process may be
served upon them in any authorized manner authorized and covenants not to assert
or plead any objection which they might otherwise have to such jurisdiction or
process.

        3.10 Invalidity of Provisions. Each of the provisions contained in this
Agreement is distinct and severable and a declaration of invalidity or
unenforceability of any such provision or part thereof by a court of competent
jurisdiction shall not affect the validity or enforceability of any other
provision hereof.

        3.11 Counterparts. This Agreement may be executed in one or more
counterparts, each of which shall be deemed to be an original but all of which
together shall constitute one and the same instrument.


                                       -3-

<PAGE>   61

        IN WITNESS WHEREOF, this Agreement has been duly executed and delivered
by the parties on the date first above written.


                                   ACQUIROR


                                   By:________________________________________
                                      Name:
                                      Title:


                                   MERGER SUB


                                   By:________________________________________
                                      Name:
                                      Title:


                                   MAJOR STOCKHOLDER

  
                                   -------------------------------------------
                                   (print name of stockholder above)


                                   By:________________________________________
                                      Name:
                                      Title:
                                      (if applicable)


                                       -4-

<PAGE>   62


                                    Exhibit A

                                IRREVOCABLE PROXY

         The undersigned stockholder of Aurum Software, Inc., a Delaware
corporation ("Company"), hereby irrevocably (to the extent provided in Section
212 of the Delaware General Corporation Law) appoints the directors on the Board
of Directors of Baan Company N.V., a corporation organized under the laws of The
Netherlands ("Baan"), and each of them individually, as the sole and exclusive
attorneys and proxies of the undersigned, with full power of substitution and
resubstitution, to the full extent of the undersigned's rights with respect to
the shares of capital stock of the Company beneficially owned by the
undersigned, which shares are listed on the final page of this Proxy (the
"Shares"), and any and all other shares or securities issued or issuable in
respect thereof on or after the date hereof, until such time as that certain
Agreement and Plan of Reorganization dated as of May 13, 1997 (the "Merger
Agreement"), among Baan, Green Software Acquisition Corporation, a Delaware
corporation and a wholly-owned subsidiary of Baan ("Merger Sub"), and Company,
shall be terminated in accordance with its terms or the Merger (as defined in
the Merger Agreement) is effective. Upon the execution hereof, all prior proxies
given by the undersigned with respect to the Shares and any and all other shares
or securities issued or issuable in respect thereof on or after the date hereof
are hereby revoked and no subsequent proxies will be given.

         This proxy is irrevocable (to the extent provided in Section 212 of the
Delaware General Corporation Law), is granted pursuant to the Stockholder Voting
Agreement dated as of May 13, 1997 between Baan, Merger Sub and the undersigned
stockholder (the "Voting Agreement"), and is granted in consideration of Baan
entering into the Merger Agreement. The attorneys and proxies named above will
be empowered at any time prior to termination of the Merger Agreement to
exercise all voting rights (including, without limitation, the power to execute
and deliver written consents with respect to the Shares) of the undersigned at
every annual, special or adjourned meeting of Company stockholders, and in every
written consent in lieu of such a meeting, or otherwise, in favor of approval of
the Merger and the Merger Agreement and any matter that could reasonably be
expected to facilitate the Merger.

         The attorneys and proxies named above may only exercise this proxy to
vote the Shares subject hereto at any time prior to termination of the Merger
Agreement at every annual, special or adjourned meeting of the stockholders of
Company and in every written consent in lieu of such meeting, in favor of
approval of the Merger and the Merger Agreement and any matter that could
reasonably be expected to facilitate the Merger, and may not exercise this proxy
on any other matter. The undersigned stockholder may vote the Shares on all
other matters.

         Any obligation of the undersigned hereunder shall be binding upon the
successors and assigns of the undersigned.

Dated:   May 13, 1997

         Signature of Stockholder:____________________________________________

         Print Name of Stockholder:___________________________________________

         Shares beneficially owned:______________________shares of Common Stock


                                       -5-

<PAGE>   63
                                                                       EXHIBIT B

                        [Option from Target to Acquiror]

                             STOCK OPTION AGREEMENT


        THIS STOCK OPTION AGREEMENT dated as of May ____, 1997 (the "AGREEMENT")
is entered into by and between Aurum Software, Inc., a Delaware corporation
("TARGET"), and Baan Company N.V., a corporation incorporated in the Netherlands
("ACQUIROR"). Capitalized terms used in this Agreement but not defined herein
shall have the meanings ascribed thereto in the Merger Agreement (as defined
below).

                                    RECITALS

        WHEREAS, concurrently with the execution and delivery of this Agreement,
Target, Acquiror and Green Software Acquisition Corp., a Delaware corporation
and a wholly owned subsidiary of Acquiror ("SUB"), are entering into an
Agreement and Plan of Reorganization (the "MERGER AGREEMENT"), which provides
that, among other things, upon the terms and subject to the conditions thereof,
Target, Acquiror and Sub will enter into a business combination transaction (the
"MERGER"); and

        WHEREAS, as a condition to Acquiror's willingness to enter into the
Merger Agreement, Acquiror has requested that Target agree, and Target has so
agreed, to grant to Acquiror an option to acquire shares of Target's Common
Stock, $0.001 par value, upon the terms and subject to the conditions set forth
herein;

                                    AGREEMENT

        NOW, THEREFORE, in consideration of the foregoing and of the mutual
covenants and agreements set forth herein and in the Merger Agreement and for
other good and valuable consideration, the receipt and adequacy of which are
hereby acknowledged, the parties hereto agree as follows:

        1.     GRANT OF OPTION

               Target hereby grants to Acquiror an irrevocable option (the
"OPTION") to acquire up to a number of shares of the Common Stock, $0.001 par
value, of Target ("TARGET SHARES") equal to 19.9% of the issued and outstanding
shares as of the first date, if any, upon which an Exercise Event (as defined in
Section 2(a) below) shall occur (the "OPTION SHARES"), in the manner set forth
below (i) by paying cash at a price of $21.00 per share (the "EXERCISE PRICE")
and/or, at Acquiror's election, (ii) by exchanging therefor shares of the Common
Stock, 0.01 par value, of Acquiror ("ACQUIROR SHARES") at a rate (the "EXERCISE
RATIO"), for each Option Share, of a number of Acquiror Shares equal to the
Exercise Price divided by the average closing sale prices during the previous 30
trading days of Acquiror Shares on the Nasdaq National Market immediately
preceding the date of the Closing (as defined below) of the particular Option
exercise.


<PAGE>   64



        2.      EXERCISE OF OPTION; MAXIMUM PROCEEDS

                (a)     For all purposes of this Agreement, an "EXERCISE EVENT"
shall have occurred upon the occurrence of both: (i) the individuals or entities
entering into Voting Agreements and providing the related proxies on the date
hereof having ceased to own, in the aggregate, at least a majority of the
capital stock of the Target or (ii) any of such Voting Agreements or the related
proxies having been declared invalid or unenforceable and (x) the earlier of the
consummation of, or the record date, if any, for a meeting of Target's
stockholders with regard to an Acquisition Proposal with respect to Target with
any party other than Acquiror (or an affiliate of Acquiror) if the Board of
Directors of Target shall have withheld, withdrawn, or modified in a manner
adverse to Acquiror its recommendation in favor of adoption and approval of the
Merger Agreement and approval of the Merger (and at that time there shall not
have occurred a Material Adverse Effect on Acquiror) after receipt of and in
connection with an Acquisition Proposal with respect to Target, (y) the
commencement of a tender or exchange offer for 20% or more of any class of
Target's capital stock (and/or during any time which such a tender or exchange
offer remains open or has been consummated), or (z) pursuant to a Termination
under Section 7.1(e) or (g) of the Merger Agreement.

                (b)     Acquiror may deliver to Target a written notice (an
"EXERCISE NOTICE") specifying that it wishes to exercise and close a purchase of
Option Shares at any time within 30 days following the occurrence of an Exercise
Event, specifying the total number of Option Shares it wishes to acquire. Each
closing of a purchase of Option Shares (a "CLOSING") shall occur on the date and
at a time designated by the Acquiror in an Exercise Notice delivered at least
five (5) business days prior to the date of such Closing, which Closing shall be
held at the offices of counsel to Acquiror upon the occurrence of an Exercise
Event prior to the termination of the Option as may be designated by Acquiror in
writing. In the event that no Exercise Event shall occur prior to termination of
the Option, such Exercise Notice shall be void and of no further force and
effect.

                (c)     The Option shall terminate upon the earlier of (i) the
Effective Time and (ii) 12 months following the termination of the Merger
Agreement pursuant to Article VII thereof if an Exercise Event shall have
occurred on or prior to the date of such termination, and (iii) the date on
which the Merger Agreement is terminated pursuant to Article VII thereof if no
Exercise Event shall have occurred on or prior to such date; provided, however,
that if the Option is exercisable but cannot be exercised by reason of any
applicable government order or because the waiting period related to the
issuance of the Option Shares under the HSR Act shall not have expired or been
terminated, then the Option shall not terminate until the tenth business day
after such impediment to exercise shall have been removed or shall have become
final and not subject to appeal. Notwithstanding the foregoing, the Option may
not be exercised if (i) Acquiror shall have breached in any material respect any
of its covenants or agreements contained in the Merger Agreement or (ii) the
representations and warranties of Acquiror contained in the Merger Agreement
shall not have been true and correct in all material respects on and as of the
date when made.



                                       -2-

<PAGE>   65



        3.      CONDITIONS TO CLOSING

                The obligation of Target to issue Option Shares to Acquiror
hereunder is subject to the conditions that (a) any waiting period under the HSR
Act applicable to the issuance of the Option Shares hereunder shall have expired
or been terminated; (b) all material consents, approvals, orders or
authorizations of, or registrations, declarations or filings with, any Federal,
state or local administrative agency or commission or other Federal state or
local governmental authority or instrumentality, if any, required in connection
with the issuance of the Option Shares hereunder shall have been obtained or
made, as the case may be; and (c) no preliminary or permanent injunction or
other order by any court of competent jurisdiction prohibiting or otherwise
restraining such issuance shall be in effect. It is understood and agreed that
at any time during which Acquiror shall be entitled to deliver to Target an
Exercise Notice, the parties will use their respective best efforts to satisfy
all conditions to Closing, so that a Closing may take place as promptly as
practicable, and in any event, upon the occurrence of an Exercise Event.

        4.      CLOSING

                At any Closing, (a) Target shall deliver to Acquiror a single
certificate in definitive form representing the number of Target Shares
designated by Acquiror in its Exercise Notice, such certificate to be registered
in the name of Acquiror and to bear the legend set forth in Section 10 hereof,
against delivery of (b) payment by Acquiror to Target of the aggregate purchase
price for the Target Shares so designated and being purchased by delivery of (i)
a certified check or bank check and/or, at Acquiror's election, (ii) a single
certificate in definitive form representing the number of Acquiror Shares being
issued by Acquiror in consideration therefor (based on the Exercise Ratio), such
certificate to be registered in the name of Target and to bear the legend set
forth in Section 10 hereof.

        5.      REPRESENTATIONS AND WARRANTIES OF TARGET

                Target represents and warrants to Acquiror that (a) Target is a
corporation duly organized, validly existing and in good standing under the laws
of the State of Delaware and has the corporate power and authority to enter into
this Agreement and to carry out its obligations hereunder; (b) the execution and
delivery of this Agreement by Target and consummation by Target of the
transactions contemplated hereby have been duly authorized by all necessary
corporate action on the part of Target and no other corporate proceedings on the
part of Target are necessary to authorize this Agreement or any of the
transactions contemplated hereby; (c) this Agreement has been duly executed and
delivered by Target and constitutes a legal, valid and binding obligation of
Target and, assuming this Agreement constitutes a legal, valid and binding
obligation of Acquiror, is enforceable against Target in accordance with its
terms, except as enforceability may be limited by bankruptcy and other laws
affecting the rights and remedies of creditors generally and general principles
of equity; (d) except for any filings required under the HSR Act, Target has
taken all necessary corporate and other action to authorize and reserve for
issuance and to permit it to issue upon exercise of the Option, and at all times
from the date hereof until the termination of the Option will have reserved for
issuance, a sufficient number of unissued Target Shares for Acquiror to exercise
the Option in full and

                                      -3-

<PAGE>   66

will take all necessary corporate or other action to authorize and reserve for
issuance all additional Target Shares or other securities which may be issuable
pursuant to Section 9(a) upon exercise of the Option, all of which, upon their
issuance and delivery in accordance with the terms of this Agreement, will be
validly issued, fully paid and nonassessable; (e) upon delivery of the Target
Shares and any other securities to Acquiror upon exercise of the Option,
Acquiror will acquire such Target Shares or other securities free and clear of
all material claims, liens, charges, encumbrances and security interests of any
kind or nature whatsoever, excluding those imposed by Acquiror; (f) the
execution and delivery of this Agreement by Target do not, and the performance
of this Agreement by Target will not, (i) violate the Certificate of
Incorporation or Bylaws of Target, (ii) conflict with or violate any order
applicable to Target or any of its subsidiaries or by which they or any of their
property is bound or affected or (iii) result in any breach of or constitute a
default (or an event which with notice or lapse of time or both would become a
default) under, or give rise to any right of termination, amendment,
acceleration or cancellation of, or result in the creation of a lien or
encumbrance on any property or assets of Target or any of its subsidiaries
pursuant to, any contract or agreement to which Target or any of its
subsidiaries is a party or by which Target or any of its subsidiaries or any of
their property is bound or affected, except, in the case of clauses (ii) and
(iii) above, for violations, conflicts, breaches, defaults, rights of
termination, amendment, acceleration or cancellation, liens or encumbrances
which would not, individually or in the aggregate, have a Material Adverse
Effect on Target; and (g) the execution and delivery of this Agreement by Target
does not, and the performance of this Agreement by Target will not, require any
consent, approval, authorization or permit of, or filing with, or notification
to, any Governmental Entity except pursuant to the HSR Act.

        6.      REPRESENTATIONS AND WARRANTIES OF ACQUIROR

                Acquiror represents and warrants to Target that (a) Acquiror is
a corporation duly incorporated, validly existing and in good standing under the
laws of The Netherlands and has the corporate power and authority to enter into
this Agreement and to carry out its obligations hereunder; (b) the execution and
delivery of this Agreement by Acquiror and the consummation by Acquiror of the
transactions contemplated hereby have been duly authorized by all necessary
corporate action on the part of Acquiror and no other corporate proceedings on
the part of Acquiror are necessary to authorize this Agreement or any of the
transactions contemplated hereby; (c) this Agreement has been duly executed and
delivered by Acquiror and constitutes a legal, valid and binding obligation of
Acquiror and, assuming this Agreement constitutes a legal, valid and binding
obligation of Target, is enforceable against Acquiror in accordance with its
terms, except as enforceability may be limited by bankruptcy and other laws
affecting the rights and remedies of creditors generally and general principles
of equity; and (d) except for any filings required under the HSR Act, Acquiror
has taken (or will in a timely manner take) all necessary corporate and other
action in connection with any exercise of the Option; (e) upon delivery of
Acquiror Shares to Target in consideration of any acquisition of Target Shares
pursuant hereto, Target will acquire such Acquiror Shares free and clear of all
material claims, liens, charges, encumbrances and security interests of any kind
or nature whatsoever, excluding those imposed by Target; (f) the execution and
delivery of this Agreement by Acquiror do not, and the performance of this
Agreement by Acquiror will not, (i) violate the Articles of Association of
Acquiror, (ii) conflict with or violate any order applicable to Acquiror or any
of its subsidiaries or by which they or any of their property is bound or
affected or (iii) result in any breach

                                       -4-

<PAGE>   67

of or constitute a default (or an event which with notice or lapse of time or
both would become a default) under, or give rise to any right of termination,
amendment, acceleration or cancellation of, or result in the creation of a lien
or encumbrance on any of the property or assets of Acquiror or any of its
subsidiaries pursuant to, any contract or agreement to which Acquiror or any of
its subsidiaries is a party or by which Acquiror or any of its subsidiaries or
any of their property is bound or affected, except, in the case of clauses (ii)
and (iii) above, for violations, conflicts, breaches, defaults, rights of
termination, amendment, acceleration or cancellation, liens or encumbrances
which would not, individually or in the aggregate, have a Material Adverse
Effect on Acquiror; (g) the execution and delivery of this Agreement by Acquiror
does not, and the performance of this Agreement by Acquiror will not, require
any consent, approval, authorization or permit of, or filing with or
notification to, any Governmental Entity except pursuant to the HSR Act; and (h)
any Target Shares acquired upon exercise of the Option will not be acquired by
Acquiror with a view to the public distribution thereof and Acquiror will not
sell or otherwise dispose of such shares in violation of applicable law or this
Agreement.

        7.      CERTAIN RIGHTS

                (a)     ACQUIROR PUT. If Acquiror shall have exercised the
Option, Acquiror may thereafter deliver to Target a written notice (a "PUT
NOTICE"), at any time during which Acquiror may exercise the Option, specifying
that it wishes to sell (as specified in such Put Notice) all or a portion of the
Option Shares acquired as a result of such exercise at the price, and in the
form, set forth in paragraph (b) below. At any time after delivery of a Put
Notice, unless such Put Notice is withdrawn by Acquiror, the closing of the Put
(the "PUT CLOSING") shall take place at the principal offices of Target on the
date specified in the Put Notice (which shall be at least 5 days after the date
of such Put Notice).

                (b)     PAYMENT AND REDELIVERY OF CASH OR ACQUIROR SHARES. At
the Put Closing, (i) Acquiror shall surrender to Target the certificates
evidencing the Option Shares to be purchased by Target at such Put Closing and
(ii) Target shall deliver to Acquiror a proportionate amount of the aggregate
consideration paid by Acquiror in connection with any exercise of the Option. In
addition, the consideration to be paid by Target to Acquiror at any Put Closing
shall be in the form that is proportionate to the form previously paid by
Acquiror to Target. By way of example only, if (x) one third of the aggregate
Option Shares shall have been acquired for cash and two-thirds shall have been
acquired for Acquiror Shares, then (y) the consideration to be paid by Target to
Acquiror at such Put Closing shall consist of one-third cash and two-thirds
Acquiror Shares. Any cash payment required to be made by Target to Acquiror
shall be paid a certified check or bank check. In connection with any Acquiror
Shares returned to Acquiror at a Put Closing, Target shall represent and warrant
that such shares are then free and clear of all claims, liens, charges,
encumbrances and security interests of any kind or nature whatsoever, other than
those imposed by Acquiror.

               (c) EFFECT OF CERTAIN ACTIONS. The amount of Option Shares and
Acquiror Shares delivered or required to be delivered hereunder shall reflect
appropriately the effect of any stock split, reverse stock split, stock dividend
(including any dividend or distribution of securities convertible into Acquiror
Common Shares or Target Common Stock), reorganization, 

                                       -5-


<PAGE>   68
recapitalization or other like change with respect to Acquiror Common Shares or
Target Common Stock occurring after the date of Closing and prior to the date of
the Put Closing.

                (d)     RESTRICTIONS ON TRANSFER. Until the termination of the
Option, Target shall not sell, transfer or otherwise dispose of any Acquiror
Shares acquired by it pursuant to this Agreement.

        8.      REGISTRATION RIGHTS

                (a)     Following the termination of the Merger Agreement,
Acquiror may by written notice (a "REGISTRATION NOTICE") to Target request
Target to register under the Securities Act, in accordance with Target's
existing Amended and Restated Registration Rights Agreement, dated August 22,
1995 (the "REGISTRATION RIGHTS AGREEMENT"), all or any part of the shares
acquired by Acquiror pursuant to this Agreement (the "REGISTRABLE SECURITIES")
in order to permit the sale or other disposition of such shares pursuant to a
bona fide firm commitment underwritten public offering in which the Acquiror and
the underwriters shall effect as wide a distribution of such Registrable
Securities as is reasonably practicable; provided, however, that any such
Registration Notice must relate to a number of shares equal to at least 2% of
the outstanding shares of Common Stock of the Target on a fully diluted basis
and that any rights to require registration hereunder shall terminate with
respect to any shares that may be sold pursuant to Rule 144(k) under the
Securities Act.

                (b)     The registration rights set forth in this Section 8 are
subject to the condition that Acquiror shall provide Target with such
information with respect to Acquiror's Registrable Securities, the plan for
distribution thereof, and such other information with respect to such Acquiror,
in the reasonable judgment of counsel for Target, is necessary to enable
Acquiror to include in a registration statement all material facts required to
be disclosed with respect to a registration thereunder.

                (c)     A registration effected under this Section 8 shall be
effected at Target's expense, except for underwriting discounts and commissions
and the fees and expenses of counsel to Acquiror, and Target shall provide to
the underwriters such documentation (including certificates, opinions of counsel
and "comfort" letters from auditors) as are customary in connection with
underwritten public offerings and as such underwriters may reasonably require.
In connection with any registration, Target shall agree to enter into an
underwriting agreement reasonably acceptable to each such party, in form and
substance customary for transactions of this type with the underwriters
participating in such offering.

                (d)     Indemnification

                        (i)     Target will indemnify Acquiror, each of its
directors and officers and each person who controls Acquiror within the meaning
of Section 15 of the Securities Act, and each underwriter of Target's
securities, with respect to any registration, qualification or compliance which
has been effected pursuant to this Agreement, in accordance with the terms and
conditions of Target's existing Registration Rights Agreement and Acquiror will
indemnify Target in accordance with the

                                       -6-

<PAGE>   69
terms and conditions of Target's existing Registration Rights Agreement;
provided, however that such terms and conditions may not be modified, altered,
or amended without Acquiror's consent.

        9.      ADJUSTMENT UPON CHANGES IN CAPITALIZATION; RIGHTS PLANS

                (a)     In the event of any change in the Target Shares by
reason of stock dividends, stock splits, reverse stock splits, mergers (other
than the Merger), recapitalizations, combinations, exchanges of shares and the
like, the type and number of shares or securities subject to the Option, the
Exercise Ratio and the Exercise Price shall be adjusted appropriately, and
proper provision shall be made in the agreements governing such transaction so
that Acquiror shall receive, upon exercise of the Option, the number and class
of shares or other securities or property that Acquiror would have received in
respect of the Target Shares if the Option had been exercised immediately prior
to such event or the record date therefor, as applicable.

                (b)     At any time during which the Option is exercisable, and
at any time after the Option is exercised (in whole or in part, if at all),
Target shall not adopt a stockholders rights plan (a so-called "poison pill")
that contains provisions for the distribution of rights thereunder as a result
of Acquiror being the beneficial owner of shares of the first party by virtue of
the Option being exercisable or having been exercised (or as a result of such
other party beneficially owning shares issuable in respect of any Option
Shares). It is understood, however, that following termination (if any) of the
Merger Agreement, a party may adopt a stockholders rights plan, that contains
provisions for the distribution of rights thereunder as a result of the other
party being the beneficial owner of shares of the first party in addition to
those that may be beneficially owned by virtue of the Option being exercisable
or having been exercised (or as a result of such other party beneficially owning
shares issuable in respect of any Option Shares).

        10.     RESTRICTIVE LEGENDS

                Each certificate representing Option Shares issued to Acquiror
hereunder, and each certificate representing Acquiror Shares delivered to Target
at a Closing, shall include a legend in substantially the following form:

        THE SECURITIES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED
        UNDER THE SECURITIES ACT OF 1933, AS AMENDED, AND MAY BE REOFFERED OR
        SOLD ONLY IF SO REGISTERED OR IF AN EXEMPTION FROM SUCH REGISTRATION IS
        AVAILABLE. SUCH SECURITIES ARE ALSO SUBJECT TO ADDITIONAL RESTRICTIONS
        ON TRANSFER AS SET FORTH IN THE STOCK OPTION AGREEMENT DATED AS OF MAY
        13, 1997, A COPY OF WHICH MAY BE OBTAINED FROM ACQUIROR.

        11.     LISTING AND HSR FILING

                Target, upon the request of Acquiror, shall promptly file an
application to list the Target Shares to be acquired upon exercise of the Option
for quotation on the Nasdaq National


                                       -7-

<PAGE>   70



Market and shall use its best efforts to obtain approval of such listing as soon
as practicable. Promptly after the date hereof, each of the parties hereto shall
promptly file with the Federal Trade Commission and the Antitrust Division of
the United States Department of Justice all required premerger notification and
report forms and other documents and exhibits required to be filed under the HSR
Act to permit the acquisition of the Target Shares subject to the Option at the
earliest possible date.

        12.     BINDING EFFECT

                This Agreement shall be binding upon and inure to the benefit of
the parties hereto and their respective successors and permitted assigns.
Nothing contained in this Agreement, express or implied, is intended to confer
upon any person other than the parties hereto and their respective successors
and permitted assigns any rights or remedies of any nature whatsoever by reason
of this Agreement. Any shares sold by a party in compliance with the provisions
of Section 8 shall, upon consummation of such sale, be free of the restrictions
imposed with respect to such shares by this Agreement and any transferee of such
shares shall not be entitled to the rights of such party. Certificates
representing shares sold in a registered public offering pursuant to Section 8
shall not be required to bear the legend set forth in Section 10.

        13.     SPECIFIC PERFORMANCE

                The parties recognize and agree that if for any reason any of
the provisions of this Agreement are not performed in accordance with their
specific terms or are otherwise breached, immediate and irreparable harm or
injury would be caused for which money damages would not be an adequate remedy.
Accordingly, each party agrees that in addition to other remedies the other
party shall be entitled to an injunction restraining any violation or threatened
violation of the provisions of this Agreement. In the event that any action
shall be brought in equity to enforce the provisions of the Agreement, neither
party will allege, and each party hereby waives the defense, that there is an
adequate remedy at law.



                                       -8-

<PAGE>   71



        14.     ENTIRE AGREEMENT

                This Agreement and the Merger Agreement (including the
appendices thereto) constitute the entire agreement between the parties with
respect to the subject matter hereof and supersede all other prior agreements
and understandings, both written and oral, between the parties with respect to
the subject matter hereof.

        15.     FURTHER ASSURANCES

                Each party will execute and deliver all such further documents
and instruments and take all such further action as may be necessary in order to
consummate the transactions contemplated hereby.

        16.     VALIDITY

                The invalidity or unenforceability of any provision of this
Agreement shall not affect the validity or enforceability of the other
provisions of this Agreement, which shall remain in full force and effect. In
the event any Governmental Entity of competent jurisdiction holds any provision
of this Agreement to be null, void or unenforceable, the parties hereto shall
negotiate in good faith and shall execute and deliver an amendment to this
Agreement in order, as nearly as possible, to effectuate, to the extent
permitted by law, the intent of the parties hereto with respect to such
provision.

        17.     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 sent via telecopy (receipt confirmed) to the parties at the
following addresses or telecopy numbers (or at such other address or telecopy
numbers for a party as shall be specified by like notice):

               (a)     if to Target, to:

                       Aurum Software, Inc.
                       3385 Scott Boulevard
                       Santa Clara, California 95054
                       Attn:  President and Chief Executive Officer

                       with a copy to:

                       Fenwick & West LLP
                       Two Palo Alto Square, Suite 700
                       Palo Alto, California 94306
                       Attn:  Jacqueline Daunt, Esq.


                                       -9-

<PAGE>   72



               (b)     if to Acquiror, to:

                       Baan Company N.V.
                       Baron van Nagellstraat 89
                       3771 LK Barneveld
                       P. O. Box 143
                       3770 AC Barneveld
                       The Netherlands
                       Attn:  President and Chief Executive Officer

                       with a copy to each of:

                       Amal Johnson
                       Managing Director
                       Baan USA Inc.
                       4600 Bohannon Drive #105
                       Menlo Park, CA 94025

                       Wilson Sonsini Goodrich & Rosati, P.C.
                       650 Page Mill Road
                       Palo Alto, California 94304-1050
                       Attn:  Mark A. Bertelsen, Esq.
                              Howard S. Zeprun, Esq.

        18.     GOVERNING LAW

                This Agreement shall be governed by and construed in accordance
with the laws of the State of Delaware applicable to agreements made and to be
performed entirely within such State.

        19.     COUNTERPARTS

                This Agreement may be executed in two counterparts, each of
which shall be deemed to be an original, but both of which, taken together,
shall constitute one and the same instrument.

        20.     EXPENSES

                Except as otherwise expressly provided herein or in the Merger
Agreement, all costs and expenses incurred in connection with the transactions
contemplated by this Agreement shall be paid by the party incurring such
expenses.


                                      -10-

<PAGE>   73



        21.     AMENDMENTS; WAIVER

                This Agreement may be amended by the parties hereto and the
terms and conditions hereof may be waived only by an instrument in writing
signed on behalf of each of the parties hereto, or, in the case of a waiver, by
an instrument signed on behalf of the party waiving compliance.

        22.     ASSIGNMENT

                Neither of the parties hereto may sell, transfer, assign or
otherwise dispose of any of its rights or obligations under this Agreement or
the Option created hereunder to any other person, without the express written
consent of the other party, except that the rights and obligations hereunder
shall inure to the benefit of and be binding upon any successor of a party
hereto.





<PAGE>   74


               IN WITNESS WHEREOF, the parties hereto have caused this Agreement
to be executed by their respective duly authorized officers as of the date first
above written.


                                ACQUIROR:

                                BAAN COMPANY N.V.


                                By: /s/
                                   -------------------------------------

                                   Name:
                                        --------------------------------
                                   Title:


                                TARGET:

                                AURUM SOFTWARE, INC.
   

                                By: /s/
                                   -------------------------------------

                                   Name:
                                        --------------------------------
                                   Title:  President and Chief Executive Officer
















                          ***STOCK OPTION AGREEMENT***
                           (Target option to Acquiror)

<PAGE>   75
                                                                       EXHIBIT C

                              AURUM SOFTWARE, INC.

                               AFFILIATE AGREEMENT


        This AFFILIATE AGREEMENT ("Agreement") dated as of May ___, 1997, is
entered into between Baan Company N.V., a corporation organized under the laws
of The Netherlands ("Baan") and the undersigned affiliate ("Affiliate") of Aurum
Software, Inc., a Delaware corporation ("Company").

        WHEREAS, Baan and Company have entered into an Agreement and Plan of
Reorganization dated May 13, 1997 ("Merger Agreement") pursuant to which a
subsidiary of Baan will merge with and into Company ("Merger"), and Company will
become a subsidiary of Baan (capitalized terms not otherwise defined herein
shall have the meanings ascribed to them in the Merger Agreement);

        WHEREAS, pursuant to the Merger, at the Effective Time outstanding
shares of Common Stock of the Company ("Company Common Stock"), including any
shares owned by Affiliate, will be converted into the right to receive Baan
Common Shares;

        WHEREAS, it is intended that the Merger will constitute a reorganization
within the meaning of Section 368(a) of the Internal Revenue Code of 1986 as
amended (the "Code"), and that it will be a condition to effectiveness of the
Merger that legal counsel for each of Company and Baan will have delivered
written opinions to such effect;

        WHEREAS, it is further intended that the Merger will qualify for
"pooling-of-interests" accounting treatment;

        WHEREAS, the execution and delivery of this Agreement by Affiliate is a
material inducement to Baan to enter into the Merger Agreement; and

        WHEREAS, Affiliate has been advised that Affiliate may be deemed to be
an "affiliate" of Company, as the term "affiliate" is used (i) for purposes of
paragraphs (c) and (d) of Rule 145 of the Rules and Regulations (the "Rules and
Regulations") of the Securities and Exchange Commission (the "Commission") and
(ii) in the Commission's Accounting Series Releases 130 and 135, as amended,
although nothing contained herein shall be construed as an admission by
Affiliate that Affiliate is in fact an "affiliate" of Company.

        NOW, THEREFORE, intending to be legally bound, the parties hereby agree
as follows:

        1.      Acknowledgments by Affiliate. Affiliate has been informed that a
reorganization for federal income tax purposes requires that a sufficient number
of former shareholders of the Company maintain a meaningful continuing equity
ownership interest in Baan following the Merger. Affiliate acknowledges and
understands that the representations, warranties and covenants by Affiliate set


<PAGE>   76



forth herein will be relied upon by Baan, Company, and their respective
"affiliates", counsel and accountants, and that substantial losses and damages
may be incurred by these persons if Affiliate's representations, warranties or
covenants are breached. Affiliate has carefully read this Agreement and the
Merger Agreement and has had the opportunity to discuss the requirements of this
Agreement with his, her or its professional advisors, who are qualified to
advise him, her or it with regard to such matters.

        2.      Compliance with Rule 145 and the Securities Act.

                (a) Affiliate has been advised that (i) the issuance of shares
of Baan Common Stock in connection with the Merger is expected to be effected
pursuant to a Registration Statement on Form F-4 to be filed to register the
shares of Baan Common Shares under the Securities Act of 1933, as amended (the
"Securities Act"), and as such will not be deemed "restricted securities" within
the meaning of Rule 144 promulgated under the Securities Act, and resale of such
shares will not be subject to any restrictions other than as set forth in Rule
145 promulgated under the Securities Act (which will not apply if such shares
are otherwise transferred pursuant to an effective registration statement under
the Securities Act or an appropriate exemption from registration), and (ii)
Affiliate may be deemed to be an "affiliate" of the Company within the meaning
of the Securities Act and, in particular, Rule 145 promulgated thereunder.
Affiliate accordingly agrees not to sell, transfer or otherwise dispose of any
Baan Common Shares issued to Affiliate in the Merger unless (i) such sale,
transfer or other disposition is made in conformity with the requirements of
Rule 145(d) promulgated under the Securities Act, or (ii) such sale, transfer or
other disposition is made pursuant to an effective registration statement under
the Securities Act or an appropriate exemption from registration, or (iii)
Affiliate delivers to Baan a written opinion of counsel, reasonably acceptable
to Baan in form and substance, that such sale, transfer or other disposition is
otherwise exempt from registration under the Securities Act.

                (b) Baan will give stop transfer instructions to its transfer
agent with respect to any Baan Common Shares received by Affiliate pursuant to
the Merger and there will be placed on the certificates representing such Common
Shares, or any substitutions therefor, a legend stating in substance:

                "The shares represented by this certificate were issued in a
                transaction to which Rule 145 promulgated under the Securities
                Act of 1933, as amended (the "Securities Act") applies and may
                only be transferred in conformity with Rule 145(d) or pursuant
                to an effective registration statement under the Securities Act,
                or in accordance with a written opinion of counsel, reasonably
                acceptable to the issuer in form and substance, that such
                transfer is exempt from registration under the Securities Act."

The legend set forth above shall be removed (by delivery of a substitute
certificate without such legend) and Baan shall so instruct its transfer agent,
if Affiliate delivers to Baan satisfactory written evidence that (i) the shares
have been sold in compliance with Rule 145 (in which case, the substitute


                                       -2-

<PAGE>   77



certificate will be issued in the name of the transferee), or (ii) any of the
other conditions specified in Section 2(a) hereof have been satisfied.

        3. Covenants Related to Pooling of Interests. Notwithstanding any other
provision of this Affiliate Agreement to the contrary, during the period
commencing on the date hereof, consistent with Accounting Standards Release
("ASR") No. 135, which period the parties agree will continue until such date
after the Effective Time as shall be the first market trading day following the
date Baan publishes financial results covering at least 30 days of combined
operations of Baan and Company, Affiliate will not sell, exchange, transfer,
pledge, distribute, make any gift or otherwise dispose of or grant any option,
establish any "short" or put-equivalent position with respect to or enter into
any similar transaction (through derivatives or otherwise) intended to reduce or
having the effect, directly or indirectly, of reducing his risk relative to any
shares of Company Securities (as hereinafter defined), or any rights, options or
warrants to purchase Company Securities, or Merger Securities (as hereinafter
defined) or other securities of Baan received by Affiliate in connection with
the Merger. For the purposes of this Agreement, (i) "Company Securities" shall
mean, collectively, all shares of Company Common Stock and any other securities
of the Company held by Affiliate, including all securities as to which Affiliate
has sole or shared voting or investment power, and all rights, options and
warrants to acquire shares of capital stock or other securities of Company
granted to or held by Affiliate, and (ii) "Merger Securities" shall mean,
collectively, all Baan Common Shares that are or may be issued by Baan in
connection with the Merger or the transactions contemplated by the Merger
Agreement, and any Securities that may be paid as a dividend or otherwise
distributed thereon or with respect thereto or issued or delivered in exchange
or substitution therefor or upon conversion thereof. Baan may, at its
discretion, cause a restrictive legend to the foregoing effect to be placed on
certificates representing Merger Securities issued to Affiliate in the Merger
and place a stop transfer notice consistent with the foregoing with its transfer
agent with respect to the certificates. Notwithstanding the foregoing, Affiliate
is entitled to sell or dispose of shares so long as such sale or disposition is
in accordance with ASR No. 135 and the "de minimis" test set forth in Commission
Staff Accounting Bulletin No. 76; provided that Shareholder has first obtained
Baan's prior written approval of any such proposed sale or disposition.

        4.      Representations, Warranties and Covenants Related to Tax Effects
of the Merger.

                (a)     Affiliate is the beneficial owner of Company Securities
and did not acquire any of the Company Securities in contemplation of the
Merger;

                (b)     Affiliate has not engaged in a Sale (as defined below)
of any shares of Company Common Stock in contemplation of the Merger;

                (c) Affiliate does not now have, and as of the Effective Time of
the Merger will not have, any current plan or intention (a "Plan") to engage in
a sale, exchange, transfer, redemption or reduction in any way of the
undersigned's risk of ownership by short sale or otherwise, or other
disposition, directly or indirectly (such actions being collectively referred to
herein as a "Sale") of more than fifty percent (50%) of the Baan Common Shares
(or other Merger Securities) (on a fully diluted basis, giving effect to all
options) to be received by Affiliate in the Merger;


                                       -3-

<PAGE>   78



                (d) If Affiliate is a partnership, then the term "Sale" as used
in paragraph (c) above shall not be deemed to include any distribution to the
undersigned's partners, provided that if any recipient of any such distribution
will receive Baan Common Shares (or other Merger Securities) having a fair
market value of 1% or more of the fair market value of all the shares of the
capital stock of Company presently outstanding, the undersigned is not aware of
any Plan on the part of such recipient to engage in a Sale of more than fifty
percent (50%) of Baan Common Shares (or other Merger Securities) (on a fully
diluted basis, giving effect to all options) to be received by such recipient in
such distribution;

                (e) Affiliate is not aware of, or participating in, any Plan to
engage in a Sale or Sales of Baan Common Shares (or other Merger Securities) to
be received in the Merger such that the aggregate fair market value, as of the
Effective Time of the Merger, of the shares subject to such Sales would exceed
fifty percent (50%) of the aggregate fair market value of all shares of
outstanding capital stock of Company immediately prior to the Merger;

                (f) Affiliate understands that Company, Baan and their
respective affiliates, as well as legal counsel to Company and Baan (in
connection with rendering their opinions that the Merger will be a
"reorganization" within the meaning of Section 368(a) of the Code) will be
relying on (a) the truth and accuracy of the representations contained herein
and (b) Affiliate's performance of the obligations set forth herein.

        5.      Miscellaneous.

                (a) The Affiliate agrees that, upon receipt of signatures
representing holders of 662/3% of Registrable Securities (as such term is
defined in the Registration Rights Agreement dated August 22, 1995 (as amended
March 29, 1996) among the Company and the holders of its then-outstanding shares
of Preferred Stock) and upon consummation of the Merger, such Registration
Rights Agreement shall terminate and cease to be of any effect.

                (b) For the convenience of the parties hereto, this Agreement
may be executed in one or more counterparts, each of which shall be deemed an
original, but all of which together shall constitute one and the same document.

                (c) This Agreement shall be enforceable by, and shall inure to
the benefit of and be binding upon, the parties hereto and their respective
successors and assigns. As used herein, the term "successors and assigns" shall
mean, where the context so permits, heirs, executors, administrators, trustees
and successor trustees, and personal and other representatives.

                (d) This Agreement shall be governed by and construed,
interpreted and enforced in accordance with the internal laws of the State of
Delaware.

                (e) If a court of competent jurisdiction determines that any
provision of this Agreement is not enforceable or enforceable only if limited in
time or scope, this Agreement shall continue in full force and effect with such
provision stricken or so limited.


                                       -4-

<PAGE>   79



                (f) Counsel to the parties and each of the parties' accountants
to the Agreement shall be entitled to rely upon this Agreement as appropriate.

                (g) This Agreement shall not be modified or amended, or any
right hereunder waived or any obligation excused, except by a written agreement
signed by both parties.

                (h) This Affiliate Agreement shall be terminated and of no
further force and effect upon termination of the Merger Agreement pursuant to
its terms.




                [Remainder of this page intentionally left blank]


                                       -5-

<PAGE>   80


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


                                BAAN COMPANY N.V.


                                By:________________________________

                                Title:_____________________________





                                AFFILIATE


                                By:________________________________

                                Name of Affiliate:_________________

                  Name of Signatory (if different from name of
                       Affiliate):________________________

                                Title of Signatory
                                (if applicable):___________________


                                Company shares beneficially owned:

                                _______________ shares of Common Stock

                                Company shares subject to outstanding options:

                                _______________ shares of Common Stock







                 ***AURUM SOFTWARE, INC. AFFILIATE AGREEMENT***


                                       -6-

<PAGE>   81





(iii)  a conformed copy of the Stock Option Agreement, dated as of May 13, 1997,
       between Baan Company N.V. and Aurum Software, Inc.
<PAGE>   82

                        [Option from Target to Acquiror]

                             STOCK OPTION AGREEMENT


        THIS STOCK OPTION AGREEMENT dated as of May 13, 1997 (the "AGREEMENT")
is entered into by and between Aurum Software, Inc., a Delaware corporation
("TARGET"), and Baan Company N.V., a corporation incorporated in the Netherlands
("ACQUIROR"). Capitalized terms used in this Agreement but not defined herein
shall have the meanings ascribed thereto in the Merger Agreement (as defined
below).

                                    RECITALS

        WHEREAS, concurrently with the execution and delivery of this Agreement,
Target, Acquiror and Green Software Acquisition Corp., a Delaware corporation
and a wholly owned subsidiary of Acquiror ("SUB"), are entering into an
Agreement and Plan of Reorganization (the "MERGER AGREEMENT"), which provides
that, among other things, upon the terms and subject to the conditions thereof,
Target, Acquiror and Sub will enter into a business combination transaction (the
"MERGER"); and

        WHEREAS, as a condition to Acquiror's willingness to enter into the
Merger Agreement, Acquiror has requested that Target agree, and Target has so
agreed, to grant to Acquiror an option to acquire shares of Target's Common
Stock, $0.001 par value, upon the terms and subject to the conditions set forth
herein;

                                    AGREEMENT

        NOW, THEREFORE, in consideration of the foregoing and of the mutual
covenants and agreements set forth herein and in the Merger Agreement and for
other good and valuable consideration, the receipt and adequacy of which are
hereby acknowledged, the parties hereto agree as follows:

        1.     GRANT OF OPTION

               Target hereby grants to Acquiror an irrevocable option (the
"OPTION") to acquire up to a number of shares of the Common Stock, $0.001 par
value, of Target ("TARGET SHARES") equal to 19.9% of the issued and outstanding
shares as of the first date, if any, upon which an Exercise Event (as defined in
Section 2(a) below) shall occur (the "OPTION SHARES"), in the manner set forth
below (i) by paying cash at a price of $21.00 per share (the "EXERCISE PRICE")
and/or, at Acquiror's election, (ii) by exchanging therefor shares of the Common
Stock, 0.01 par value, of Acquiror ("ACQUIROR SHARES") at a rate (the "EXERCISE
RATIO"), for each Option Share, of a number of Acquiror Shares equal to the
Exercise Price divided by the average closing sale prices during the previous 30
trading days of Acquiror Shares on the Nasdaq National Market immediately
preceding the date of the Closing (as defined below) of the particular Option
exercise.


<PAGE>   83



        2.      EXERCISE OF OPTION; MAXIMUM PROCEEDS

                (a)     For all purposes of this Agreement, an "EXERCISE EVENT"
shall have occurred upon the occurrence of both: (i) the individuals or entities
entering into Voting Agreements and providing the related proxies on the date
hereof having ceased to own, in the aggregate, at least a majority of the
capital stock of the Target or (ii) any of such Voting Agreements or the related
proxies having been declared invalid or unenforceable and (x) the earlier of the
consummation of, or the record date, if any, for a meeting of Target's
stockholders with regard to an Acquisition Proposal with respect to Target with
any party other than Acquiror (or an affiliate of Acquiror) if the Board of
Directors of Target shall have withheld, withdrawn, or modified in a manner
adverse to Acquiror its recommendation in favor of adoption and approval of the
Merger Agreement and approval of the Merger (and at that time there shall not
have occurred a Material Adverse Effect on Acquiror) after receipt of and in
connection with an Acquisition Proposal with respect to Target, (y) the
commencement of a tender or exchange offer for 20% or more of any class of
Target's capital stock (and/or during any time which such a tender or exchange
offer remains open or has been consummated), or (z) pursuant to a Termination
under Section 7.1(e) or (g) of the Merger Agreement.

                (b)     Acquiror may deliver to Target a written notice (an
"EXERCISE NOTICE") specifying that it wishes to exercise and close a purchase of
Option Shares at any time within 30 days following the occurrence of an Exercise
Event, specifying the total number of Option Shares it wishes to acquire. Each
closing of a purchase of Option Shares (a "CLOSING") shall occur on the date and
at a time designated by the Acquiror in an Exercise Notice delivered at least
five (5) business days prior to the date of such Closing, which Closing shall be
held at the offices of counsel to Acquiror upon the occurrence of an Exercise
Event prior to the termination of the Option as may be designated by Acquiror in
writing. In the event that no Exercise Event shall occur prior to termination of
the Option, such Exercise Notice shall be void and of no further force and
effect.

                (c)     The Option shall terminate upon the earlier of (i) the
Effective Time and (ii) 12 months following the termination of the Merger
Agreement pursuant to Article VII thereof if an Exercise Event shall have
occurred on or prior to the date of such termination, and (iii) the date on
which the Merger Agreement is terminated pursuant to Article VII thereof if no
Exercise Event shall have occurred on or prior to such date; provided, however,
that if the Option is exercisable but cannot be exercised by reason of any
applicable government order or because the waiting period related to the
issuance of the Option Shares under the HSR Act shall not have expired or been
terminated, then the Option shall not terminate until the tenth business day
after such impediment to exercise shall have been removed or shall have become
final and not subject to appeal. Notwithstanding the foregoing, the Option may
not be exercised if (i) Acquiror shall have breached in any material respect any
of its covenants or agreements contained in the Merger Agreement or (ii) the
representations and warranties of Acquiror contained in the Merger Agreement
shall not have been true and correct in all material respects on and as of the
date when made.



                                       -2-

<PAGE>   84



        3.      CONDITIONS TO CLOSING

                The obligation of Target to issue Option Shares to Acquiror
hereunder is subject to the conditions that (a) any waiting period under the HSR
Act applicable to the issuance of the Option Shares hereunder shall have expired
or been terminated; (b) all material consents, approvals, orders or
authorizations of, or registrations, declarations or filings with, any Federal,
state or local administrative agency or commission or other Federal state or
local governmental authority or instrumentality, if any, required in connection
with the issuance of the Option Shares hereunder shall have been obtained or
made, as the case may be; and (c) no preliminary or permanent injunction or
other order by any court of competent jurisdiction prohibiting or otherwise
restraining such issuance shall be in effect. It is understood and agreed that
at any time during which Acquiror shall be entitled to deliver to Target an
Exercise Notice, the parties will use their respective best efforts to satisfy
all conditions to Closing, so that a Closing may take place as promptly as
practicable, and in any event, upon the occurrence of an Exercise Event.

        4.      CLOSING

                At any Closing, (a) Target shall deliver to Acquiror a single
certificate in definitive form representing the number of Target Shares
designated by Acquiror in its Exercise Notice, such certificate to be registered
in the name of Acquiror and to bear the legend set forth in Section 10 hereof,
against delivery of (b) payment by Acquiror to Target of the aggregate purchase
price for the Target Shares so designated and being purchased by delivery of (i)
a certified check or bank check and/or, at Acquiror's election, (ii) a single
certificate in definitive form representing the number of Acquiror Shares being
issued by Acquiror in consideration therefor (based on the Exercise Ratio), such
certificate to be registered in the name of Target and to bear the legend set
forth in Section 10 hereof.

        5.      REPRESENTATIONS AND WARRANTIES OF TARGET

                Target represents and warrants to Acquiror that (a) Target is a
corporation duly organized, validly existing and in good standing under the laws
of the State of Delaware and has the corporate power and authority to enter into
this Agreement and to carry out its obligations hereunder; (b) the execution and
delivery of this Agreement by Target and consummation by Target of the
transactions contemplated hereby have been duly authorized by all necessary
corporate action on the part of Target and no other corporate proceedings on the
part of Target are necessary to authorize this Agreement or any of the
transactions contemplated hereby; (c) this Agreement has been duly executed and
delivered by Target and constitutes a legal, valid and binding obligation of
Target and, assuming this Agreement constitutes a legal, valid and binding
obligation of Acquiror, is enforceable against Target in accordance with its
terms, except as enforceability may be limited by bankruptcy and other laws
affecting the rights and remedies of creditors generally and general principles
of equity; (d) except for any filings required under the HSR Act, Target has
taken all necessary corporate and other action to authorize and reserve for
issuance and to permit it to issue upon exercise of the Option, and at all times
from the date hereof until the termination of the Option will have reserved for
issuance, a sufficient number of unissued Target Shares for Acquiror to exercise
the Option in full and

                                      -3-

<PAGE>   85

will take all necessary corporate or other action to authorize and reserve for
issuance all additional Target Shares or other securities which may be issuable
pursuant to Section 9(a) upon exercise of the Option, all of which, upon their
issuance and delivery in accordance with the terms of this Agreement, will be
validly issued, fully paid and nonassessable; (e) upon delivery of the Target
Shares and any other securities to Acquiror upon exercise of the Option,
Acquiror will acquire such Target Shares or other securities free and clear of
all material claims, liens, charges, encumbrances and security interests of any
kind or nature whatsoever, excluding those imposed by Acquiror; (f) the
execution and delivery of this Agreement by Target do not, and the performance
of this Agreement by Target will not, (i) violate the Certificate of
Incorporation or Bylaws of Target, (ii) conflict with or violate any order
applicable to Target or any of its subsidiaries or by which they or any of their
property is bound or affected or (iii) result in any breach of or constitute a
default (or an event which with notice or lapse of time or both would become a
default) under, or give rise to any right of termination, amendment,
acceleration or cancellation of, or result in the creation of a lien or
encumbrance on any property or assets of Target or any of its subsidiaries
pursuant to, any contract or agreement to which Target or any of its
subsidiaries is a party or by which Target or any of its subsidiaries or any of
their property is bound or affected, except, in the case of clauses (ii) and
(iii) above, for violations, conflicts, breaches, defaults, rights of
termination, amendment, acceleration or cancellation, liens or encumbrances
which would not, individually or in the aggregate, have a Material Adverse
Effect on Target; and (g) the execution and delivery of this Agreement by Target
does not, and the performance of this Agreement by Target will not, require any
consent, approval, authorization or permit of, or filing with, or notification
to, any Governmental Entity except pursuant to the HSR Act.

        6.      REPRESENTATIONS AND WARRANTIES OF ACQUIROR

                Acquiror represents and warrants to Target that (a) Acquiror is
a corporation duly incorporated, validly existing and in good standing under the
laws of The Netherlands and has the corporate power and authority to enter into
this Agreement and to carry out its obligations hereunder; (b) the execution and
delivery of this Agreement by Acquiror and the consummation by Acquiror of the
transactions contemplated hereby have been duly authorized by all necessary
corporate action on the part of Acquiror and no other corporate proceedings on
the part of Acquiror are necessary to authorize this Agreement or any of the
transactions contemplated hereby; (c) this Agreement has been duly executed and
delivered by Acquiror and constitutes a legal, valid and binding obligation of
Acquiror and, assuming this Agreement constitutes a legal, valid and binding
obligation of Target, is enforceable against Acquiror in accordance with its
terms, except as enforceability may be limited by bankruptcy and other laws
affecting the rights and remedies of creditors generally and general principles
of equity; and (d) except for any filings required under the HSR Act, Acquiror
has taken (or will in a timely manner take) all necessary corporate and other
action in connection with any exercise of the Option; (e) upon delivery of
Acquiror Shares to Target in consideration of any acquisition of Target Shares
pursuant hereto, Target will acquire such Acquiror Shares free and clear of all
material claims, liens, charges, encumbrances and security interests of any kind
or nature whatsoever, excluding those imposed by Target; (f) the execution and
delivery of this Agreement by Acquiror do not, and the performance of this
Agreement by Acquiror will not, (i) violate the Articles of Association of
Acquiror, (ii) conflict with or violate any order applicable to Acquiror or any
of its subsidiaries or by which they or any of their property is bound or
affected or (iii) result in any breach

                                       -4-

<PAGE>   86

of or constitute a default (or an event which with notice or lapse of time or
both would become a default) under, or give rise to any right of termination,
amendment, acceleration or cancellation of, or result in the creation of a lien
or encumbrance on any of the property or assets of Acquiror or any of its
subsidiaries pursuant to, any contract or agreement to which Acquiror or any of
its subsidiaries is a party or by which Acquiror or any of its subsidiaries or
any of their property is bound or affected, except, in the case of clauses (ii)
and (iii) above, for violations, conflicts, breaches, defaults, rights of
termination, amendment, acceleration or cancellation, liens or encumbrances
which would not, individually or in the aggregate, have a Material Adverse
Effect on Acquiror; (g) the execution and delivery of this Agreement by Acquiror
does not, and the performance of this Agreement by Acquiror will not, require
any consent, approval, authorization or permit of, or filing with or
notification to, any Governmental Entity except pursuant to the HSR Act; and (h)
any Target Shares acquired upon exercise of the Option will not be acquired by
Acquiror with a view to the public distribution thereof and Acquiror will not
sell or otherwise dispose of such shares in violation of applicable law or this
Agreement.

        7.      CERTAIN RIGHTS

                (a)     ACQUIROR PUT. If Acquiror shall have exercised the
Option, Acquiror may thereafter deliver to Target a written notice (a "PUT
NOTICE"), at any time during which Acquiror may exercise the Option, specifying
that it wishes to sell (as specified in such Put Notice) all or a portion of the
Option Shares acquired as a result of such exercise at the price, and in the
form, set forth in paragraph (b) below. At any time after delivery of a Put
Notice, unless such Put Notice is withdrawn by Acquiror, the closing of the Put
(the "PUT CLOSING") shall take place at the principal offices of Target on the
date specified in the Put Notice (which shall be at least 5 days after the date
of such Put Notice).

                (b)     PAYMENT AND REDELIVERY OF CASH OR ACQUIROR SHARES. At
the Put Closing, (i) Acquiror shall surrender to Target the certificates
evidencing the Option Shares to be purchased by Target at such Put Closing and
(ii) Target shall deliver to Acquiror a proportionate amount of the aggregate
consideration paid by Acquiror in connection with any exercise of the Option. In
addition, the consideration to be paid by Target to Acquiror at any Put Closing
shall be in the form that is proportionate to the form previously paid by
Acquiror to Target. By way of example only, if (x) one third of the aggregate
Option Shares shall have been acquired for cash and two-thirds shall have been
acquired for Acquiror Shares, then (y) the consideration to be paid by Target to
Acquiror at such Put Closing shall consist of one-third cash and two-thirds
Acquiror Shares. Any cash payment required to be made by Target to Acquiror
shall be paid a certified check or bank check. In connection with any Acquiror
Shares returned to Acquiror at a Put Closing, Target shall represent and warrant
that such shares are then free and clear of all claims, liens, charges,
encumbrances and security interests of any kind or nature whatsoever, other than
those imposed by Acquiror.

               (c) EFFECT OF CERTAIN ACTIONS. The amount of Option Shares and
Acquiror Shares delivered or required to be delivered hereunder shall reflect
appropriately the effect of any stock split, reverse stock split, stock dividend
(including any dividend or distribution of securities convertible into Acquiror
Common Shares or Target Common Stock), reorganization, 

                                       -5-


<PAGE>   87
recapitalization or other like change with respect to Acquiror Common Shares or
Target Common Stock occurring after the date of Closing and prior to the date of
the Put Closing.

                (d)     RESTRICTIONS ON TRANSFER. Until the termination of the
Option, Target shall not sell, transfer or otherwise dispose of any Acquiror
Shares acquired by it pursuant to this Agreement.

        8.      REGISTRATION RIGHTS

                (a)     Following the termination of the Merger Agreement,
Acquiror may by written notice (a "REGISTRATION NOTICE") to Target request
Target to register under the Securities Act, in accordance with Target's
existing Amended and Restated Registration Rights Agreement, dated August 22,
1995 (the "REGISTRATION RIGHTS AGREEMENT"), all or any part of the shares
acquired by Acquiror pursuant to this Agreement (the "REGISTRABLE SECURITIES")
in order to permit the sale or other disposition of such shares pursuant to a
bona fide firm commitment underwritten public offering in which the Acquiror and
the underwriters shall effect as wide a distribution of such Registrable
Securities as is reasonably practicable; provided, however, that any such
Registration Notice must relate to a number of shares equal to at least 2% of
the outstanding shares of Common Stock of the Target on a fully diluted basis
and that any rights to require registration hereunder shall terminate with
respect to any shares that may be sold pursuant to Rule 144(k) under the
Securities Act.

                (b)     The registration rights set forth in this Section 8 are
subject to the condition that Acquiror shall provide Target with such
information with respect to Acquiror's Registrable Securities, the plan for
distribution thereof, and such other information with respect to such Acquiror,
in the reasonable judgment of counsel for Target, is necessary to enable
Acquiror to include in a registration statement all material facts required to
be disclosed with respect to a registration thereunder.

                (c)     A registration effected under this Section 8 shall be
effected at Target's expense, except for underwriting discounts and commissions
and the fees and expenses of counsel to Acquiror, and Target shall provide to
the underwriters such documentation (including certificates, opinions of counsel
and "comfort" letters from auditors) as are customary in connection with
underwritten public offerings and as such underwriters may reasonably require.
In connection with any registration, Target shall agree to enter into an
underwriting agreement reasonably acceptable to each such party, in form and
substance customary for transactions of this type with the underwriters
participating in such offering.

                (d)     Indemnification

                        (i)     Target will indemnify Acquiror, each of its
directors and officers and each person who controls Acquiror within the meaning
of Section 15 of the Securities Act, and each underwriter of Target's
securities, with respect to any registration, qualification or compliance which
has been effected pursuant to this Agreement, in accordance with the terms and
conditions of Target's existing Registration Rights Agreement and Acquiror will
indemnify Target in accordance with the

                                       -6-

<PAGE>   88
terms and conditions of Target's existing Registration Rights Agreement;
provided, however that such terms and conditions may not be modified, altered,
or amended without Acquiror's consent.

        9.      ADJUSTMENT UPON CHANGES IN CAPITALIZATION; RIGHTS PLANS

                (a)     In the event of any change in the Target Shares by
reason of stock dividends, stock splits, reverse stock splits, mergers (other
than the Merger), recapitalizations, combinations, exchanges of shares and the
like, the type and number of shares or securities subject to the Option, the
Exercise Ratio and the Exercise Price shall be adjusted appropriately, and
proper provision shall be made in the agreements governing such transaction so
that Acquiror shall receive, upon exercise of the Option, the number and class
of shares or other securities or property that Acquiror would have received in
respect of the Target Shares if the Option had been exercised immediately prior
to such event or the record date therefor, as applicable.

                (b)     At any time during which the Option is exercisable, and
at any time after the Option is exercised (in whole or in part, if at all),
Target shall not adopt a stockholders rights plan (a so-called "poison pill")
that contains provisions for the distribution of rights thereunder as a result
of Acquiror being the beneficial owner of shares of the first party by virtue of
the Option being exercisable or having been exercised (or as a result of such
other party beneficially owning shares issuable in respect of any Option
Shares). It is understood, however, that following termination (if any) of the
Merger Agreement, a party may adopt a stockholders rights plan, that contains
provisions for the distribution of rights thereunder as a result of the other
party being the beneficial owner of shares of the first party in addition to
those that may be beneficially owned by virtue of the Option being exercisable
or having been exercised (or as a result of such other party beneficially owning
shares issuable in respect of any Option Shares).

        10.     RESTRICTIVE LEGENDS

                Each certificate representing Option Shares issued to Acquiror
hereunder, and each certificate representing Acquiror Shares delivered to Target
at a Closing, shall include a legend in substantially the following form:

        THE SECURITIES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED
        UNDER THE SECURITIES ACT OF 1933, AS AMENDED, AND MAY BE REOFFERED OR
        SOLD ONLY IF SO REGISTERED OR IF AN EXEMPTION FROM SUCH REGISTRATION IS
        AVAILABLE. SUCH SECURITIES ARE ALSO SUBJECT TO ADDITIONAL RESTRICTIONS
        ON TRANSFER AS SET FORTH IN THE STOCK OPTION AGREEMENT DATED AS OF MAY
        13, 1997, A COPY OF WHICH MAY BE OBTAINED FROM ACQUIROR.

        11.     LISTING AND HSR FILING

                Target, upon the request of Acquiror, shall promptly file an
application to list the Target Shares to be acquired upon exercise of the Option
for quotation on the Nasdaq National


                                       -7-

<PAGE>   89



Market and shall use its best efforts to obtain approval of such listing as soon
as practicable. Promptly after the date hereof, each of the parties hereto shall
promptly file with the Federal Trade Commission and the Antitrust Division of
the United States Department of Justice all required premerger notification and
report forms and other documents and exhibits required to be filed under the HSR
Act to permit the acquisition of the Target Shares subject to the Option at the
earliest possible date.

        12.     BINDING EFFECT

                This Agreement shall be binding upon and inure to the benefit of
the parties hereto and their respective successors and permitted assigns.
Nothing contained in this Agreement, express or implied, is intended to confer
upon any person other than the parties hereto and their respective successors
and permitted assigns any rights or remedies of any nature whatsoever by reason
of this Agreement. Any shares sold by a party in compliance with the provisions
of Section 8 shall, upon consummation of such sale, be free of the restrictions
imposed with respect to such shares by this Agreement and any transferee of such
shares shall not be entitled to the rights of such party. Certificates
representing shares sold in a registered public offering pursuant to Section 8
shall not be required to bear the legend set forth in Section 10.

        13.     SPECIFIC PERFORMANCE

                The parties recognize and agree that if for any reason any of
the provisions of this Agreement are not performed in accordance with their
specific terms or are otherwise breached, immediate and irreparable harm or
injury would be caused for which money damages would not be an adequate remedy.
Accordingly, each party agrees that in addition to other remedies the other
party shall be entitled to an injunction restraining any violation or threatened
violation of the provisions of this Agreement. In the event that any action
shall be brought in equity to enforce the provisions of the Agreement, neither
party will allege, and each party hereby waives the defense, that there is an
adequate remedy at law.



                                       -8-

<PAGE>   90



        14.     ENTIRE AGREEMENT

                This Agreement and the Merger Agreement (including the
appendices thereto) constitute the entire agreement between the parties with
respect to the subject matter hereof and supersede all other prior agreements
and understandings, both written and oral, between the parties with respect to
the subject matter hereof.

        15.     FURTHER ASSURANCES

                Each party will execute and deliver all such further documents
and instruments and take all such further action as may be necessary in order to
consummate the transactions contemplated hereby.

        16.     VALIDITY

                The invalidity or unenforceability of any provision of this
Agreement shall not affect the validity or enforceability of the other
provisions of this Agreement, which shall remain in full force and effect. In
the event any Governmental Entity of competent jurisdiction holds any provision
of this Agreement to be null, void or unenforceable, the parties hereto shall
negotiate in good faith and shall execute and deliver an amendment to this
Agreement in order, as nearly as possible, to effectuate, to the extent
permitted by law, the intent of the parties hereto with respect to such
provision.

        17.     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 sent via telecopy (receipt confirmed) to the parties at the
following addresses or telecopy numbers (or at such other address or telecopy
numbers for a party as shall be specified by like notice):

               (a)     if to Target, to:

                       Aurum Software, Inc.
                       3385 Scott Boulevard
                       Santa Clara, California 95054
                       Attn:  President and Chief Executive Officer

                       with a copy to:

                       Fenwick & West LLP
                       Two Palo Alto Square, Suite 700
                       Palo Alto, California 94306
                       Attn:  Jacqueline Daunt, Esq.


                                       -9-

<PAGE>   91



               (b)     if to Acquiror, to:

                       Baan Company N.V.
                       Baron van Nagellstraat 89
                       3771 LK Barneveld
                       P. O. Box 143
                       3770 AC Barneveld
                       The Netherlands
                       Attn:  President and Chief Executive Officer

                       with a copy to each of:

                       Amal Johnson
                       Managing Director
                       Baan USA Inc.
                       4600 Bohannon Drive #105
                       Menlo Park, CA 94025

                       Wilson Sonsini Goodrich & Rosati, P.C.
                       650 Page Mill Road
                       Palo Alto, California 94304-1050
                       Attn:  Mark A. Bertelsen, Esq.
                              Howard S. Zeprun, Esq.

        18.     GOVERNING LAW

                This Agreement shall be governed by and construed in accordance
with the laws of the State of Delaware applicable to agreements made and to be
performed entirely within such State.

        19.     COUNTERPARTS

                This Agreement may be executed in two counterparts, each of
which shall be deemed to be an original, but both of which, taken together,
shall constitute one and the same instrument.

        20.     EXPENSES

                Except as otherwise expressly provided herein or in the Merger
Agreement, all costs and expenses incurred in connection with the transactions
contemplated by this Agreement shall be paid by the party incurring such
expenses.


                                      -10-

<PAGE>   92



        21.     AMENDMENTS; WAIVER

                This Agreement may be amended by the parties hereto and the
terms and conditions hereof may be waived only by an instrument in writing
signed on behalf of each of the parties hereto, or, in the case of a waiver, by
an instrument signed on behalf of the party waiving compliance.

        22.     ASSIGNMENT

                Neither of the parties hereto may sell, transfer, assign or
otherwise dispose of any of its rights or obligations under this Agreement or
the Option created hereunder to any other person, without the express written
consent of the other party, except that the rights and obligations hereunder
shall inure to the benefit of and be binding upon any successor of a party
hereto.





<PAGE>   93


               IN WITNESS WHEREOF, the parties hereto have caused this Agreement
to be executed by their respective duly authorized officers as of the date first
above written.


                                ACQUIROR:

                                BAAN COMPANY N.V.


                                By: /s/     Amal M. Johnson
                                   -------------------------------------

                                   Name:    Amal M. Johnson
                                        --------------------------------
                                   Title:   Executive Vice President, Baan
                                            Affiliates and Marketing

                                TARGET:

                                AURUM SOFTWARE, INC.
   

                                By: /s/     Mary E. Coleman
                                   -------------------------------------

                                   Name:    Mary E. Coleman
                                        --------------------------------
                                   Title:  President and Chief Executive Officer
















                          ***STOCK OPTION AGREEMENT***
                           (Target option to Acquiror)



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