INFORMIX CORP
SC 13D, 1999-12-09
PREPACKAGED SOFTWARE
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<PAGE>

                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                  SCHEDULE 13D

                    UNDER THE SECURITIES EXCHANGE ACT OF 1934

                              ARDENT SOFTWARE, INC.
                                (Name of Issuer)

                    COMMON STOCK, $0.001 par value per share
                         (Title of Class of Securities)

                                    039794102
                                 (CUSIP Number)

                                GARY LLOYD, ESQ.
                             VICE PRESIDENT, LEGAL,
                          GENERAL COUNSEL AND SECRETARY
                              INFORMIX CORPORATION
                               4100 BOHANNON DRIVE
                              MENLO PARK, CA 94025
                                 (650) 926-6300

(Name, Address and Telephone Number of Person Authorized to Receive Notices and
                                Communications)

                                NOVEMBER 30, 1999
             (Date of Event which Requires Filing of this Statement)

         If the filing person has previously filed a statement on Schedule 13G
to report the acquisition which is the subject of this Schedule 13D, and is
filing this schedule because of Rule 13d-1(e), 13d-1(f) or 13d-1(g), check the
following box. / /

         NOTE: Schedules filed in paper format shall include a signed original
and five copies of the schedule, including all exhibits. See Rule 13d-7(b) for
other parties to whom copies are to be sent.

         The information required on the remainder of this cover page shall not
be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange
Act of 1934 (the "Act") or otherwise subject to the liabilities of that section
of the Act but shall be subject to all other provisions of the Act (however, see
the Notes).


<PAGE>

- --------------------------------------------------------------------------------
CUSIP No. 039794102                 SCHEDULE 13D            Page 2 of 13 Pages
- --------------------------------------------------------------------------------


- --------------------------------------------------------------------------------
1              NAME OF REPORTING PERSON
               S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
               Informix Corporation       I.R.S. Identification No.: 94-3011736
- --------------------------------------------------------------------------------
2              CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*          (a)
                                                                          (b)

               N/A
- --------------------------------------------------------------------------------
3              SEC USE ONLY
- --------------------------------------------------------------------------------
4              SOURCE OF FUNDS*
               OO
- --------------------------------------------------------------------------------
5              CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
               TO ITEMS 2(d) OR 2(e)
               N/A
- --------------------------------------------------------------------------------
6              CITIZENSHIP OR PLACE OF ORGANIZATION
               STATE OF DELAWARE
- --------------------------------------------------------------------------------
       NUMBER OF SHARES          7        SOLE VOTING POWER
         BENEFICIALLY                     3,921,395 (1)
         OWNED BY EACH
       REPORTING PERSON
             WITH
- --------------------------------------------------------------------------------
                                 8        SHARED VOTING POWER
                                          2,476,251 (2)
- --------------------------------------------------------------------------------
                                 9        SOLE DISPOSITIVE POWER
                                          3,921,395 (1)
- --------------------------------------------------------------------------------
                                 10       SHARED DISPOSITIVE POWER
                                          N/A
- --------------------------------------------------------------------------------
11             AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
               6,397,646 (1) (2)
- --------------------------------------------------------------------------------
12             CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
               SHARES*
- --------------------------------------------------------------------------------
13             PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
               32.5%
- --------------------------------------------------------------------------------
14             TYPE OF REPORTING PERSON*
               CO
- --------------------------------------------------------------------------------

                      *SEE INSTRUCTIONS BEFORE FILLING OUT!

         (1) In the event the Option (discussed in Items 3 and 4 below) becomes
exercisable and is exercised in full, Informix Corporation ("Informix") will
have sole voting power with respect to that number of shares equal to 19.9% of
the then outstanding shares of Common Stock of Ardent Software Inc. ("Ardent")
which, based upon the 19,705,506 shares of Ardent Common Stock outstanding as of
November 30, 1999 (as represented by Ardent in the Merger Agreement discussed in
Items 3 and 4) currently equals 3,921,395 shares of Ardent Common Stock. Prior
to the exercise of the Option, Informix is not entitled to any rights as a

<PAGE>

- --------------------------------------------------------------------------------
CUSIP No. 039794102                 SCHEDULE 13D            Page 3 of 13 Pages
- --------------------------------------------------------------------------------


stockholder of Ardent as to the shares of Ardent Common Stock covered by the
Option. The Option may only be exercised upon the happening of certain events
referred to in Item 4, none of which has occurred as of the date hereof.
Informix expressly disclaims beneficial ownership of any of the shares of Ardent
Common Stock which are purchasable by Informix upon exercise of the Option until
such time as Informix purchases any such shares of Ardent Common Stock upon any
such exercise.

         (2) 2,476,251 shares of Ardent Common Stock are subject to Voting
Agreements entered into by Informix and certain stockholders of Ardent
(discussed in Items 3 and 4 below). Informix expressly disclaims beneficial
ownership of any of the shares of Ardent Common Stock covered by the Voting
Agreements. Based on the number of shares of Ardent Common Stock outstanding as
of November 30, 1999 (as represented by Ardent in the Merger Agreement discussed
in Items 3 and 4), the number of shares of Ardent Common Stock indicated
represents approximately 12.6% of the outstanding Ardent Common Stock, excluding
the shares of outstanding shares of Ardent Common Stock issuable upon exercise
of the Option.

ITEM 1.  SECURITY AND ISSUER.

         This statement on Schedule 13D (this "Statement") relates to the Common
Stock of Ardent Software, Inc., a Delaware corporation ("Ardent" or "Issuer").
The principal executive offices of Ardent are located at 50 Washington Street,
Westboro, Massachusetts 01581.

ITEM 2.  IDENTITY AND BACKGROUND.

         The name of the corporation filing this statement is Informix
Corporation, a Delaware corporation ("Informix"). Informix is a leading supplier
of information management and software solutions, including relational and
object relational database management systems, connectivity interfaces and
gateways, and graphical and character-based application development tools. The
address of Informix's principal business is 4100 Bohannon Drive, Menlo Park,
California 94025. The address of Informix's executive offices is the same as the
address of its principal business.

         Set forth on Schedule A is the name of each of the directors and
executive officers of Informix as of the date hereof, along with the present
principal occupation or employment of such persons, including the name,
principal business and address of any corporation or other organization in which
such employment is conducted. The information set forth in Schedule A is hereby
incorporated by reference.

         During the past five years neither Informix nor, to Informix's
knowledge, any person named in Schedule A to this statement, has been convicted
in a criminal proceeding (excluding traffic violations or similar misdemeanors),
or was a party to a civil proceeding of a judicial or administrative body of
competent jurisdiction as a result of which such person was or is subject to a
judgment, decree or final order enjoining future violations of, or prohibiting
or mandating activity subject to, federal or state securities laws or finding
any violation with respect to such laws. Consequently, neither Informix nor, to
Informix's best knowledge, any person named on Schedule A hereto is required to
disclose legal proceedings pursuant to Item 2(d) or 2(e) of Schedule 13D.

<PAGE>

- --------------------------------------------------------------------------------
CUSIP No. 039794102                 SCHEDULE 13D            Page 4 of 13 Pages
- --------------------------------------------------------------------------------

         To Informix's knowledge, except as set forth on Schedule A, each of the
individuals identified on Schedule A is a citizen of the United States.

ITEM 3. SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION.

         Pursuant to an Agreement and Plan of Reorganization dated as of
November 30, 1999 (the "Merger Agreement"), among Informix, Iroquois Acquisition
Corporation, a Delaware corporation and wholly-owned subsidiary of Informix
("Merger Sub"), and Ardent, and subject to the conditions set forth therein
(including approval by stockholders of each of Ardent and Informix), Merger Sub
will merge with and into Ardent and Ardent will become a wholly-owned subsidiary
of Informix (such events constituting the "Merger"). Once the Merger is
consummated, Merger Sub will cease to exist as a corporation and all of the
business, assets, liabilities and obligations of Merger Sub will be merged into
Ardent with Ardent remaining as the surviving corporation (the "Surviving
Corporation") and a wholly-owned subsidiary of Informix.

         As an inducement to Informix to enter into the Merger Agreement,
Informix and Ardent entered into a Stock Option Agreement dated as of November
30, 1999 (the "Stock Option Agreement") pursuant to which Ardent granted
Informix the right (the "Option"), under certain conditions, to acquire up to
the number of shares of Ardent Common Stock sufficient to give Informix
ownership of 19.9% of Ardent's outstanding Common Stock. Ardent's obligation to
issue shares pursuant to the exercise of the Option is subject to the occurrence
of certain events (discussed in Item 4 below) which may not occur. The granting
of the Option was negotiated as a material term of the entire Merger
transaction. Informix did not pay additional consideration to Ardent in
connection with Ardent entering into the Stock Option Agreement and granting the
Option. In the event the Option becomes exercisable, Informix anticipates it
will use working capital for any exercise of the Option.

         As a further inducement for Informix to enter into the Merger Agreement
and in consideration thereof, certain stockholders of Ardent (the
"Stockholders") entered into individual voting agreements with Informix
(collectively the "Voting Agreements") whereby each Stockholder agreed,
severally and not jointly, to vote all of the shares of Ardent Common Stock
beneficially owned by him or her in favor of approval and adoption of the Merger
Agreement and approval of the Merger and certain related matters. Informix did
not pay additional consideration to any Stockholder in connection with the
execution and delivery of the Voting Agreements.

         References to, and descriptions of, the Merger, the Merger Agreement,
the Stock Option Agreement and the Voting Agreements as set forth herein are
qualified in their entirety by reference to the copies of the Merger Agreement,
the Stock Option Agreement and the Voting Agreement, respectively, included as
Exhibits 1, 2 and 3, respectively, to this Schedule 13D.

ITEM 4.  PURPOSE OF TRANSACTION.

         (a) - (b) As described in Item 3 above, this statement relates to the
Merger of Merger Sub, a wholly-owned subsidiary of Informix, with and into
Ardent in a statutory merger pursuant to the Delaware General Corporation Law.
At the effective time of the Merger, the separate existence of Merger Sub will
cease and Ardent will continue as the Surviving Corporation and as a
wholly-owned subsidiary of Informix. Each holder of outstanding Ardent Common
Stock will receive, in exchange for each share of Ardent Common

<PAGE>

- --------------------------------------------------------------------------------
CUSIP No. 039794102                 SCHEDULE 13D            Page 5 of 13 Pages
- --------------------------------------------------------------------------------


Stock held by such holder, 3.5 shares of Informix Common Stock. Informix will
assume each outstanding option to purchase Ardent Common Stock under Ardent's
stock option plans.

         Pursuant to the Stock Option Agreement, Ardent granted Informix the
Option, under certain conditions, to acquire up to the number of shares of
Ardent Common Stock sufficient to give Informix ownership of 19.9% of Ardent's
outstanding Common Stock. Ardent's obligation to issue shares pursuant to the
exercise of the Stock Option is subject to the occurrence of certain events
(each, an "Exercise Event"), which may not occur. In general, an Exercise Event
may be deemed to occur: (a) if (i) the Board of Directors of Ardent or any
committee thereof, for any reason, shall have withdrawn or shall have amended or
modified in a manner adverse to Informix its unanimous recommendation in favor
of, the adoption and approval of the Merger Agreement or the approval of the
Merger; (ii) Ardent shall have failed to include in the joint proxy
statement/prospectus the unanimous recommendation of the Board of Directors of
Ardent in favor of the adoption and approval of the Merger Agreement and the
approval of the Merger; (iii) the Board of Directors of Ardent fails to reaffirm
its unanimous recommendation in favor of the adoption and approval of the Merger
Agreement and the approval of the Merger within five (5) days after Informix
requests in writing that such recommendation be reaffirmed at any time following
the announcement of an Acquisition Proposal (as defined in Section 5.4(a) of the
Merger Agreement); (iv) the Board of Directors of Ardent or any committee
thereof shall have approved or recommended any Acquisition Proposal; (v) Ardent
shall have entered into any letter of intent or similar document or any
agreement, contract or commitment accepting any Acquisition Proposal; or (vi) a
tender or exchange offer relating to securities of Ardent shall have been
commenced by a person unaffiliated with Informix and Ardent shall not have sent
to its securityholders pursuant to Rule 14e-2 promulgated under the Securities
Act of 1933, as amended, within ten (10) business days after such tender or
exchange offer is first published, sent or given, a statement disclosing that
Ardent recommends rejection of such tender or exchange offer; (b) upon a breach
of Section 5.4 of the Merger Agreement by Ardent; (c) if the Merger Agreement
is terminated by either Informix or Ardent because the Merger shall not have
been consummated by June 30, 2000; or (d) because the Ardent stockholders fail
to approve the Merger Agreement and the Merger.

         Pursuant to the Voting Agreements, the Stockholders have irrevocably
appointed Informix as their lawful attorney and proxy. Such proxy gives Informix
the limited right to vote each of the 2,476,251 shares (including options
exercisable within 60 days of November 30, 1999) of Ardent Common Stock
beneficially owned by the Stockholders in all matters related to the Merger. In
exercising its right to vote the Shares as lawful attorney and proxy of the
Stockholders, Informix (or any nominee of Informix) will be limited, at every
Ardent stockholders meeting and every written consent in lieu of such a meeting
to vote the Shares in favor of approval and adoption of the Merger Agreement, in
favor of approval of the Merger and in favor of each matter that could
reasonably be expected to facilitate the Merger. The Stockholders may vote the
Shares on all other matters. The Voting Agreements terminate upon the earlier to
occur of (i) such date and time as the Merger shall become effective in
accordance with the terms and provisions of the Merger Agreement, or (ii) such
date and time as the Merger Agreement shall have been terminated pursuant to
Article VII thereof.

         The purpose of the transactions under the Voting Agreements and the
Stock Option Agreement are to enable Informix and Ardent to consummate the
transactions contemplated under the Merger Agreement.

         (c)      Not applicable.

         (d)      It is anticipated that upon consummation of the Merger, the
executive officers and directors of the Surviving Corporation shall be the
current executive officers and directors of Merger Sub.

<PAGE>

- --------------------------------------------------------------------------------
CUSIP No. 039794102                 SCHEDULE 13D            Page 6 of 13 Pages
- --------------------------------------------------------------------------------


         (e)      Other than as a result of the Merger described in Item 3
above, not applicable.

         (f)      Not applicable.

         (g)      Upon consummation of the Merger, the Certificate of
Incorporation of Merger Sub, as in effect immediately prior to the Merger, shall
be the Certificate of Incorporation of the Surviving Corporation until
thereafter amended as provided by the Delaware General Corporation Law and such
Certificate of Incorporation except that the name of the Surviving Corporation
shall be "Ardent Software, Inc." Upon consummation of the Merger, the Bylaws of
Merger Sub, as in effect immediately prior to the Merger, shall be the Bylaws of
the Surviving Corporation until thereafter amended.

         (h)      Upon consummation of the Merger, Ardent Common Stock will be
de-listed from the Nasdaq Stock Market.

         (i)      Upon consummation of the Merger, Ardent Common Stock will be
de-registered under the Securities Act pursuant to Section 12(g)(4) of the Act
by filing a Form 15 with the Securities and Exchange Commission.

         (j)      Other than described above, Informix currently has no plan or
proposals which relate to, or may result in, any of the matters listed in Items
4(a) - (j) of Schedule 13D (although Informix reserves the right to develop such
plans).

         References to, and descriptions of, the Merger Agreement, the Stock
Option Agreement and the Voting Agreements as set forth above in this Item 4 are
qualified in their entirety by reference to the copies of the Merger Agreement,
the Stock Option Agreement and the Voting Agreement, respectively, included as
Exhibits 1, 2 and 3, respectively, to this Schedule 13D.

ITEM 5.  INTEREST IN SECURITIES OF THE ISSUER.

         (a) - (b) As a result of the Voting Agreements, Informix may be deemed
to be the beneficial owner of at least 2,476,251 shares of Ardent Common Stock.
Such Ardent Common Stock constitutes approximately 12.6% of the issued and
outstanding shares of Ardent Common Stock based on the number of shares of
Ardent Common Stock outstanding as of November 30, 1999 (as represented by
Ardent in the Merger Agreement discussed in Items 3 and 4). Informix may be
deemed to have the shared power to vote the Shares with respect to those matters
described above. However, Informix (i) is not entitled to any rights as a
stockholder of Ardent as to the Shares and (ii) disclaims any beneficial
ownership of the shares of Ardent Common Stock which are covered by the Voting
Agreements.

         In the event the Stock Option becomes exercisable and is exercised in
full, Informix will have the sole power to vote, and the sole power to dispose
of, that number of shares equal to 19.9% of the then outstanding shares of
Ardent Common Stock, which, based upon the 19,705,506 shares of Ardent Common
Stock outstanding as of November 30, 1999 (as represented by Ardent in the
Merger Agreement discussed in Items 3 and 4), currently equals 3,921,395 shares
of Ardent Common Stock.

         To Informix 's knowledge, no person listed on Schedule A has an
ownership interest in Ardent.

<PAGE>

- --------------------------------------------------------------------------------
CUSIP No. 039794102                 SCHEDULE 13D            Page 7 of 13 Pages
- --------------------------------------------------------------------------------


         Set forth on Schedule B is the name of those stockholders of Ardent
that have entered into a Voting Agreement with Informix, and their present
position with Ardent.

         (c)      To the knowledge of Informix, no transactions in the class of
securities reported have been effected during the past sixty days by any person
named pursuant to Item 2.

         (d)      To the knowledge of Informix, no other person has the right to
receive or the power to direct the receipt of dividends from, or the proceeds
from the sale of, the securities of Ardent reported on herein.

         (e)      Not applicable.

ITEM 6.  CONTRACTS,  ARRANGEMENTS,  UNDERSTANDINGS OR RELATIONSHIPS WITH RESPECT
         TO SECURITIES OF THE ISSUER.

         Other than the Merger Agreement and the exhibits thereto, including the
Voting Agreements and the Stock Option Agreement, to the knowledge of Informix,
there are no contracts, arrangements, understandings or relationships among the
persons named in Item 2 and between such persons and any person with respect to
any securities of Ardent, including but not limited to transfer or voting of any
of the securities, finder's fees, joint ventures, loan or option arrangements,
puts or calls, guarantees of profits, division of profits or loss, or the giving
or withholding of proxies.

ITEM 7.   MATERIALS TO BE FILED AS EXHIBITS.

          The following documents are filed as exhibits:

         1.       Agreement and Plan of Reorganization, dated November 30, 1999,
                  by and among Informix, Merger Sub and Ardent.

         2.       Stock Option Agreement, dated November 30, 1999, by and
                  between Informix and Ardent.

         3.       Form of Voting Agreement, dated November 30, 1999, between
                  Informix and certain stockholders of Ardent.

<PAGE>

- --------------------------------------------------------------------------------
CUSIP No. 039794102                 SCHEDULE 13D            Page 8 of 13 Pages
- --------------------------------------------------------------------------------


                                            SIGNATURE

         After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete and
correct.

Dated:  December 9, 1999                  INFORMIX CORPORATION



                                          By:    /s/ GARY LLOYD
                                             ----------------------------------
                                               Gary Lloyd
                                               Vice President, Legal,
                                               General Counsel and Secretary


<PAGE>

- --------------------------------------------------------------------------------
CUSIP No. 039794102                 SCHEDULE 13D            Page 9 of 13 Pages
- --------------------------------------------------------------------------------


                                   SCHEDULE A

                       DIRECTORS AND EXECUTIVE OFFICERS OF
                              INFORMIX CORPORATION

         The following table sets forth the name, business address and present
principal occupation or employment of each director and executive officer of
Informix. Except as indicated below, the business address of each such person is
4100 Bohannon Drive, Menlo Park, CA 94025.

1.       DIRECTORS

<TABLE>
<CAPTION>
          NAME                               TITLE AND PRESENT PRINCIPAL OCCUPATION
- ------------------------      ----------------------------------------------------------------------------
<S>                           <C>
Jean-Yves Dexmier             President, Chief Executive Officer and Director, Informix Corporation

Leslie G. Denend(1)           President (Retired), Network Associates, Inc.

George Reyes(2)               Vice President and Corporate Controller, Sun Microsystems, Inc.

Cyril J. Yansouni(3)          Chief Executive Officer and Chairman of the Board of Read-Rite Corporation

James L. Koch(4)              Director of the Center for Science, Technology and Society and Professor of
                              Management at Santa Clara University

Thomas A. McDonnell(5)        Chief Executive Officer, DST Systems, Inc.

Robert J. Finocchio, Jr.      Chairman of the Board, Informix Corporation
</TABLE>

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

(1)      The address for Mr. Denend is 1800 Webster Street, Palo Alto, CA
         94301.

(2)      The business address for Mr. Reyes is c/o Sun Microsystems, Inc., 901
         San Antonio Road, Palo Alto, CA 94303.

(3)      The business address for Mr. Yansouni is c/o Read-Rite Corporation, 345
         Los Coches Street, Milpitas, CA 95035.  Mr. Yansouni is a citizen of
         Belgium.

(4)      The business address for Mr. Koch is c/o Santa Clara University, 500 El
         Camino Real, Santa Clara, CA 95053.

(5)      The business address for Mr. McDonnell is c/o DST Systems, Inc., 333
         West 11th Street, Kansas City, MO 64105-1594.


<PAGE>

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CUSIP No. 039794102                 SCHEDULE 13D            Page 10 of 13 Pages
- --------------------------------------------------------------------------------


2.       EXECUTIVE OFFICERS OF INFORMIX CORPORATION WHO ARE NOT DIRECTORS

<TABLE>
<CAPTION>
          NAME                               TITLE AND PRESENT PRINCIPAL OCCUPATION
- ------------------------      ----------------------------------------------------------------------------
<S>                           <C>

Howard A. Bain, III           Executive Vice President and Chief Financial Officer

Karen Blasing                 Vice President, Corporate Business Development Finance

Charles W. Chang              Senior Vice President and Group Executive, i.Intelligence Business Group

Diane L. Fraiman              Vice President, Corporate Marketing

J.F. Hendrickson, Jr.         Senior Vice President and Group Executive, i.Informix Business Group

Gary Lloyd                    Vice President, Legal, General Counsel and Secretary

Wayne E. Page                 Vice President, Human Resources

Michael R. Stonebraker        Vice President and Chief Technology Officer

F. Steven Weick               Senior Vice President and Group Executive, i.Foundation Business Group

William O'Kelly               Vice President, Treasurer
</TABLE>

<PAGE>

- --------------------------------------------------------------------------------
CUSIP No. 039794102                 SCHEDULE 13D            Page 11 of 13 Pages
- --------------------------------------------------------------------------------


                                   SCHEDULE B

         The following table sets forth the name and present principal
occupation or employment of each Ardent stockholder that entered into a Voting
Agreement with Informix.

<TABLE>
<CAPTION>
                              NAME OF STOCKHOLDER/
                            POSITION WITH ARDENT SOFTWARE                            SHARES BENEFICIALLY OWNED
- ----------------------------------------------------------------------------------  ----------------------------
<S>                                                                                 <C>
Peter Gyenes(1).................................................................               562,218
   Chairman of the Board, President and Chief Executive Officer

David Brunel(2).................................................................               486,671
   Director

Robert G. Claussen(3)...........................................................               147,926
   Director

Martin T. Hart(4)...............................................................                65,000
   Director

Robert M. Morrill(5)............................................................               348,967
   Director

Peter L. Fiore(6)...............................................................               142,058
   Vice President, General Manager, Marketing Operations and Business
   Development

James D. Foy(7).................................................................               185,190
   Vice President, Engineering

Charles F. Kane(8)..............................................................               144,346
   Vice President, Finance, Chief Financial Officer and Treasurer

Cornelius P. McMullan(9)........................................................               150,000
   Vice President and General Manager, Worldwide Sales Operations

Jason E. Silvia(10).............................................................                97,788
   Vice President and General Manager, Services

James K. Walsh(11)..............................................................               146,087
   Vice President and General Counsel

                  TOTAL
</TABLE>

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

(1)      Represents 43,747 shares of outstanding Ardent Common Stock and 518,471
         shares subject to options exercisable within 60 days of November 30,
         1999.

(2)      Represents 141,906 shares of outstanding Ardent Common Stock and
         344,765 shares subject to options exercisable within 60 days of
         November 30, 1999.

<PAGE>

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CUSIP No. 039794102                 SCHEDULE 13D            Page 11 of 13 Pages
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(3)      Represents 125,219 shares of outstanding Ardent Common Stock and 22,707
         shares subject to options exercisable within 60 days of November 30,
         1999.

(4)      Represents 50,000 shares of outstanding Ardent Common Stock and 15,000
         shares subject to options exercisable within 60 days of November 30,
         1999.

(5)      Represents 181,634 shares of outstanding Ardent Common Stock and
         167,333 shares subject to options exercisable within 60 days of
         November 30, 1999.

(6)      Represents, 5,157 shares of outstanding Ardent Common Stock and 136,901
         shares subject to options exercisable within 60 days of November 30,
         1999.

(7)      Represents 19,661 shares of outstanding Ardent Common Stock and 165,529
         shares subject to options exercisable within 60 days of November 30,
         1999.

(8)      Represents 14,346 shares of outstanding Ardent Common Stock and 130,000
         shares subject to options exercisable within 60 days of November 30,
         1999.

(9)      Represents 150,000 shares of Ardent Common Stock subject to options
         exercisable within 60 days of November 30, 1999.

(10)     Represents 6,441 shares of outstanding Ardent Common Stock and 91,347
         shares subject to options exercisable within 60 days of November 30,
         1999.

(11)     Represents 43,587 shares of outstanding Ardent Common Stock and 102,500
         shares subject to options exercisable within 60 days of November 30,
         1999.

<PAGE>

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CUSIP No. 039794102                 SCHEDULE 13D            Page 11 of 13 Pages
- --------------------------------------------------------------------------------


                                  EXHIBIT INDEX


<TABLE>
<CAPTION>
 EXHIBIT No.                             DESCRIPTION
- -------------  -----------------------------------------------------------------
<S>            <C>
     1         Agreement and Plan of Reorganization, dated November 30, 1999 by
               and among Informix, Merger Sub and Ardent.

     2         Stock Option Agreement dated November 30, 1999 by and between
               Informix and Ardent.

     3         Form of Voting Agreement, dated November 30, 1999, between
               Informix and certain stockholders of Ardent.
</TABLE>

<PAGE>
                                  EXHIBIT 2.1
                      AGREEMENT AND PLAN OF REORGANIZATION
<PAGE>
                      AGREEMENT AND PLAN OF REORGANIZATION
                                  BY AND AMONG
                              INFORMIX CORPORATION
                        IROQUOIS ACQUISITION CORPORATION
                                      AND
                             ARDENT SOFTWARE, INC.
                         DATED AS OF NOVEMBER 30, 1999
<PAGE>
                               TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                           PAGE
                                                                         --------
<S>        <C>                                                           <C>
ARTICLE I THE MERGER...................................................      1
    1.1    The Merger..................................................      1
    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.....................................      2
    1.7    Surrender of Certificates...................................      4
    1.8    No Further Ownership Rights in Company Common Stock.........      5
    1.9    Lost, Stolen or Destroyed Certificates......................      5
    1.10   Tax and Accounting Consequences.............................      5
    1.11   Taking of Necessary Action; Further Action..................      6

ARTICLE II REPRESENTATIONS AND WARRANTIES OF COMPANY...................      6
    2.1    Organization and Qualification; Subsidiaries................      6
    2.2    Certificate of Incorporation and Bylaws.....................      6
    2.3    Capitalization..............................................      7
    2.4    Authority Relative to this Agreement........................      8
    2.5    No Conflict; Required Filings and Consents..................      8
    2.6    Compliance; Permits.........................................      9
    2.7    SEC Filings; Financial Statements...........................      9
    2.8    No Undisclosed Liabilities..................................     10
    2.9    Absence of Certain Changes or Events........................     10
    2.10   Absence of Litigation.......................................     11
    2.11   Employee Matters and Benefit Plans..........................     11
    2.12   Registration Statement; Proxy Statement.....................     14
    2.13   Restrictions on Business Activities.........................     14
    2.14   Title to Property...........................................     15
    2.15   Taxes.......................................................     15
    2.16   Environmental Matters.......................................     16
    2.17   Brokers.....................................................     17
    2.18   Intellectual Property.......................................     17
    2.19   Agreements, Contracts and Commitments.......................     20
    2.20   Company Rights Plan.........................................     21
    2.21   Insurance...................................................     22
    2.22   Opinion of Financial Advisor................................     22
    2.23   Board Approval..............................................     22
    2.24   Vote Required...............................................     22
    2.25   Pooling of Interests........................................     22

ARTICLE III REPRESENTATIONS AND WARRANTIES OF PARENT AND MERGER SUB....     22
    3.1    Organization and Qualification; Subsidiaries................     22
    3.2    Certificate of Incorporation and Bylaws.....................     23
    3.3    Capitalization..............................................     23
    3.4    Authority Relative to this Agreement........................     23
    3.5    No Conflict; Required Filings and Consents..................     24
    3.6    SEC Filings; Financial Statements...........................     24
</TABLE>

                                       i
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                               TABLE OF CONTENTS

                                  (CONTINUED)

<TABLE>
<CAPTION>
                                                                           PAGE
                                                                         --------
<S>        <C>                                                           <C>
    3.7    Registration Statement; Proxy Statement.....................     25
    3.8    Compliance; Permits.........................................     25
    3.9    No Undisclosed Liabilities..................................     25
    3.10   Absence of Litigation.......................................     26
    3.11   Brokers.....................................................     26
    3.12   Opinion of Financial Advisor................................     26
    3.13   Board Approval..............................................     26
    3.14   Vote Required...............................................     26
    3.15   Pooling of Interests........................................     26
    3.16   Interim Operations of Sub...................................     26

ARTICLE IV CONDUCT PRIOR TO THE EFFECTIVE TIME.........................     26
    4.1    Conduct of Business by Company..............................     26
    4.2    Conduct of Business by Parent...............................     29

ARTICLE V ADDITIONAL AGREEMENTS........................................     29
    5.1    Proxy Statement/Prospectus; Registration Statement; Other
             Filings; Board Recommendations............................     29
    5.2    Meeting of Company Stockholders.............................     30
    5.3    Confidentiality; Access to Information......................     31
    5.4    No Solicitation.............................................     31
    5.5    Public Disclosure...........................................     33
    5.6    Reasonable Efforts; Notification............................     33
    5.7    Third Party Consents........................................     34
    5.8    Stock Options, Warrants and Employee Benefits...............     34
    5.9    Form S-8....................................................     35
    5.10   Indemnification.............................................     35
    5.11   Nasdaq Listing..............................................     35
    5.12   Company Affiliate Agreement.................................     35
    5.13   Regulatory Filings; Reasonable Efforts......................     36
    5.14   No Rights Plan Amendment....................................     36
    5.15   Termination of 401(k) Plan..................................     36
    5.16   Termination of Severance Plans..............................     36
    5.17   Parent Stockholders' Meeting................................     37
    5.18   Directors...................................................     37
    5.19   Benefit Arrangements........................................     37
    5.20   Restructuring...............................................     37

ARTICLE VI CONDITIONS TO THE MERGER....................................     38
    6.1    Conditions to Obligations of Each Party to Effect the
             Merger....................................................     38
    6.2    Additional Conditions to Obligations of Company.............     38
    6.3    Additional Conditions to the Obligations of Parent and
             Merger Sub................................................     39

ARTICLE VII TERMINATION, AMENDMENT AND WAIVER..........................     40
    7.1    Termination.................................................     40
    7.2    Notice of Termination; Effect of Termination................     42
    7.3    Fees and Expenses...........................................     42
    7.4    Amendment...................................................     43
</TABLE>

                                       ii
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                               TABLE OF CONTENTS

                                  (CONTINUED)

<TABLE>
<CAPTION>
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                                                                         --------
<S>        <C>                                                           <C>
    7.5    Extension; Waiver...........................................     43

ARTICLE VIII GENERAL PROVISIONS........................................     43
    8.1    Non-Survival of Representations and Warranties..............     43
    8.2    Notices.....................................................     43
    8.3    Interpretation; Knowledge...................................     44
    8.4    Counterparts................................................     45
    8.5    Entire Agreement; Third Party Beneficiaries.................     45
    8.6    Severability................................................     45
    8.7    Other Remedies; Specific Performance........................     45
    8.8    Governing Law...............................................     45
    8.9    Rules of Construction.......................................     45
    8.10   Assignment..................................................     46
    8.11   WAIVER OF JURY TRIAL........................................     46

                                INDEX OF EXHIBITS

Exhibit A  Form of Company Voting Agreement

Exhibit B  Form of Stock Option Agreement

Exhibit C  Form of Company Affiliate Agreement

Exhibit D  Schedule of Employees to Sign Noncompetition Agreements
</TABLE>

                                      iii
<PAGE>
                      AGREEMENT AND PLAN OF REORGANIZATION

    This AGREEMENT AND PLAN OF REORGANIZATION is made and entered into as of
November 30, 1999, among Informix Corporation, a Delaware corporation
("PARENT"), Iroquois Acquisition Corporation, a Delaware corporation and a
wholly-owned subsidiary of Parent ("MERGER SUB"), and Ardent Software, Inc., a
Delaware corporation ("COMPANY").

                                    RECITALS

    A. Upon the terms and subject to the conditions of this Agreement (as
defined in Section 1.2 below) and in accordance with the Delaware General
Corporation Law ("DELAWARE LAW"), Parent and Company intend to enter into a
business combination transaction.

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

    C.  Concurrently with the execution of this Agreement, and as a condition
and inducement to Parent's willingness to enter into this Agreement, certain
affiliates of Company are entering into Voting Agreements in substantially the
form attached hereto as EXHIBIT A (the "COMPANY VOTING AGREEMENTS").

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

    E.  Concurrently with the execution of this Agreement, and as a condition
and inducement to Parent's willingness to enter into this Agreement, certain
affiliates of Company (the "COMPANY AFFILIATES") are entering into Company
Affiliate Agreements in substantially the form attached hereto as EXHIBIT C (the
"COMPANY AFFILIATE AGREEMENTS").

    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:

                                   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
Delaware Law, Merger Sub shall be merged with and into Company (the "MERGER"),
the separate corporate existence of Merger Sub shall cease and Company shall
continue as the surviving corporation. Company as the surviving corporation
after the Merger is hereinafter sometimes referred to as the "SURVIVING
CORPORATION."

                                       1
<PAGE>
    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 Company and Parent 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 the 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 Company and Merger
Sub shall vest in the Surviving Corporation, and all debts, liabilities and
duties of Company 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 "Ardent Software,
    Inc."

        (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 elected or appointed and qualified. The initial officers of
the Surviving Corporation shall be the officers of Merger Sub immediately prior
to the Effective Time.

    1.6  EFFECT ON CAPITAL STOCK

    Subject to the terms and conditions of this Agreement, at the Effective
Time, by virtue of the Merger and without any action on the part of Merger Sub,
Company or the holders of any of the following securities, the following shall
occur:

        (a)  CONVERSION OF COMPANY COMMON STOCK.  Each share of Common Stock,
    $0.01 par value per share, of Company, including, with respect to each such
    share of Company Common Stock, the associated Rights (as defined in that
    certain Amended and Restated Rights Agreement (the "Company Rights Plan")
    dated as of July 20, 1999 and amended as of November 30, 1999, between
    Company and State Street Bank and Trust Company as Rights Agent) (the
    "COMPANY COMMON STOCK") issued and outstanding immediately prior to the
    Effective Time, other than any shares of Company Common Stock to be canceled
    pursuant to Section 1.6(b), will be canceled and extinguished and
    automatically converted (subject to Sections 1.6(e) and (f)) into the right
    to receive 3.5 shares of Common Stock of Parent (the "PARENT COMMON STOCK")
    (the "EXCHANGE RATIO") upon surrender of

                                       2
<PAGE>
    the certificate representing such share of Company Common Stock in the
    manner provided in Section 1.7 (or in the case of a lost, stolen or
    destroyed certificate, upon delivery of an affidavit (and bond, if required)
    in the manner provided in Section 1.9). If any shares of Company Common
    Stock outstanding immediately prior to the Effective Time are unvested or
    are subject to a repurchase option, risk of forfeiture or other condition
    under any applicable restricted stock purchase agreement or other agreement
    with Company, then the shares of Parent Common Stock issued in exchange for
    such shares of Company Common Stock will also be unvested and subject to the
    same repurchase option, risk of forfeiture or other condition, and the
    certificates representing such shares of Parent Common Stock may accordingly
    be marked with appropriate legends. Company shall take all action that may
    be necessary to ensure that, from and after the Effective Time, Parent is
    entitled to exercise any such repurchase option or other right set forth in
    any such restricted stock purchase agreement or other agreement.

        (b)  CANCELLATION OF PARENT-OWNED STOCK.  Each share of Company Common
    Stock held by Company or owned by Merger Sub, Parent or any direct or
    indirect wholly-owned subsidiary of Company or of Parent immediately prior
    to the Effective Time shall be canceled and extinguished without any
    conversion thereof.

        (c)  STOCK OPTIONS; WARRANTS; EMPLOYEE STOCK PURCHASE PLANS.  At the
    Effective Time, all options to purchase Company Common Stock then
    outstanding under Company's 1986 Stock Option Plan (the "1986 Plan"), the
    1999 Director Stock Option Plan (the "Director Plan") and the 1995
    Non-Statutory Stock Option Plan (the "1995 Plan" and together with the 1986
    Plan and the Director Plan, the "COMPANY OPTION PLANS") shall be assumed by
    Parent in accordance with Section 5.8 hereof. Warrants to purchase Company
    Common Stock shall be treated as set forth in Section 5.8. Purchase rights
    outstanding under Company's Employee Stock Purchase Plan (the "ESPP") shall
    be treated as set forth in Section 5.8.

        (d)  CAPITAL STOCK OF MERGER SUB.  Each share of Common Stock, $0.001
    par value per share, of Merger Sub (the "MERGER SUB COMMON STOCK") issued
    and outstanding immediately prior to the Effective Time shall be converted
    into one validly issued, fully paid and nonassessable share of Common Stock,
    $0.001 par value per share, of the Surviving Corporation. Each certificate
    evidencing ownership of shares of Merger Sub Common Stock shall evidence
    ownership of such shares of capital stock of the Surviving Corporation.

        (e)  ADJUSTMENTS TO EXCHANGE RATIO.  The Exchange Ratio shall be
    adjusted to reflect appropriately the effect of any stock split, reverse
    stock split, stock dividend (including any dividend or distribution of
    securities convertible into Parent Common Stock or Company Common Stock),
    extraordinary cash dividends, reorganization, recapitalization,
    reclassification, combination, exchange of shares or other like change with
    respect to Parent Common Stock or Company Common Stock occurring on or after
    the date hereof and prior to the Effective Time.

        (f)  FRACTIONAL SHARES.  No fraction of a share of Parent Common Stock
    will be issued by virtue of the Merger, but in lieu thereof each holder of
    shares of Company Common Stock who would otherwise be entitled to a fraction
    of a share of Parent Common Stock (after aggregating all fractional shares
    of Parent Common Stock that otherwise would be received by such holder)
    shall, upon surrender of such holder's Certificates(s) (as defined in
    Section 1.7(c)) receive from Parent an amount of cash (rounded to the
    nearest whole cent), without interest, equal to the product of (i) such
    fraction, multiplied by (ii) the average closing price of one share of
    Parent Common Stock for the five (5) most recent days that Parent Common
    Stock has traded ending on the trading day immediately prior to the
    Effective Time, as reported on the Nasdaq National Market System ("NASDAQ").

                                       3
<PAGE>
    1.7  SURRENDER OF CERTIFICATES

        (a)  EXCHANGE AGENT.  Parent shall select a bank or trust company
    reasonably acceptable to Company to act as the exchange agent (the "EXCHANGE
    AGENT") in the Merger.

        (b)  PARENT TO PROVIDE COMMON STOCK.  Promptly after the Effective Time,
    Parent shall make available to the Exchange Agent, for exchange in
    accordance with this Article I, the shares of Parent Common Stock issuable
    pursuant to Section 1.6 in exchange for outstanding shares of Company 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 Company Common Stock may be entitled pursuant to
    Section 1.7(d).

        (c)  EXCHANGE PROCEDURES.  Promptly after the Effective Time, Parent
    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
    Company Common Stock whose shares were converted into the right to receive
    shares of Parent Common Stock 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 1.7(d), (i) a letter of transmittal in
    customary form (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 contain such other
    provisions as Parent may reasonably specify) and (ii) instructions for use
    in effecting the surrender of the Certificates in exchange for certificates
    representing shares of Parent Common Stock, cash in lieu of any fractional
    shares pursuant to Section 1.6(f) and any dividends or other distributions
    pursuant to Section 1.7(d). Upon surrender of Certificates for cancellation
    to the Exchange Agent or to such other agent or agents as may be appointed
    by Parent, 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 Parent Common Stock
    into which their shares of Company Common Stock were converted at the
    Effective Time, 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 1.7(d), and the Certificates so
    surrendered shall forthwith be canceled. Until so surrendered, outstanding
    Certificates will be deemed from and after the Effective Time, for all
    corporate purposes, subject to Section 1.7(d) as to dividends and other
    distributions, to evidence only the ownership of the number of full shares
    of Parent Common Stock into which such shares of Company Common Stock shall
    have been so converted and 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 1.7(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 Parent Common Stock with a record date after the Effective Time
    will be paid to the holders of any unsurrendered Certificates with respect
    to the shares of Parent Common Stock represented thereby until the holders
    of record of such Certificates shall surrender such Certificates. Subject to
    applicable law, following surrender of any such Certificates, the Exchange
    Agent shall deliver to the record holders thereof, without interest,
    certificates representing whole shares of Parent Common Stock 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 such whole shares of Parent Common Stock.

        (e)  TRANSFERS OF OWNERSHIP.  If certificates representing shares of
    Parent Common Stock are to be issued in a name other than that in which the
    Certificates surrendered in exchange therefor are registered, it will be a
    condition of the issuance thereof that the Certificates so surrendered will
    be properly endorsed and otherwise in proper form for transfer and that the
    persons requesting such

                                       4
<PAGE>
    exchange will have paid to Parent or any agent designated by it any transfer
    or other taxes required by reason of the issuance of certificates
    representing shares of Parent Common Stock in any name other than that of
    the registered holder of the Certificates surrendered, or established to the
    satisfaction of Parent or any agent designated by it that such tax has been
    paid or is not payable.

        (f)  REQUIRED WITHHOLDING.  Each of the Exchange Agent, Parent and the
    Surviving Corporation shall be entitled to deduct and withhold from any
    consideration payable or otherwise deliverable pursuant to this Agreement to
    any holder or former holder of Company Common Stock such amounts as may be
    required (as advised by tax counsel for Parent) to be deducted or withheld
    therefrom under the Code or under any provision of state, local or foreign
    tax law or under any other applicable legal requirement. To the extent such
    amounts are so deducted or withheld, such amounts shall be treated for all
    purposes under this Agreement as having been paid to the person to whom such
    amounts would otherwise have been paid.

        (g)  NO LIABILITY.  Notwithstanding anything to the contrary in this
    Section 1.7, neither the Exchange Agent, Parent, the Surviving Corporation
    nor any party hereto shall be liable to a holder of shares of Parent Common
    Stock or Company Common Stock for any amount properly paid to a public
    official pursuant to any applicable abandoned property, escheat or similar
    law.

    1.8  NO FURTHER OWNERSHIP RIGHTS IN COMPANY COMMON STOCK

    All shares of Parent Common Stock issued in accordance with the terms hereof
(including any cash paid in respect thereof pursuant to Section 1.6(f) and
1.7(d)) shall be deemed to have been issued in full satisfaction of all rights
pertaining to such shares of Company Common Stock, and there shall be no further
registration of transfers on the records of the Surviving Corporation of shares
of Company 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 canceled and exchanged as
provided in this Article I.

    1.9  LOST, STOLEN OR DESTROYED CERTIFICATES

    In the event that any Certificates shall have been lost, stolen or
destroyed, the Exchange Agent shall issue in exchange for such lost, stolen or
destroyed Certificates, upon the making of an affidavit of that fact by the
holder thereof, certificates representing the shares of Parent Common Stock into
which the shares of Company Common Stock represented by such Certificates were
converted pursuant to Section 1.6, 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 1.7(d); PROVIDED, HOWEVER, that Parent may, in its
discretion and as a condition precedent to the issuance of such certificates
representing shares of Parent Common Stock, cash and other distributions,
require the owner of such lost, stolen or destroyed Certificates to deliver a
bond in such sum as it may reasonably direct as indemnity against any claim that
may be made against Parent, the Surviving Corporation or the Exchange Agent with
respect to the Certificates alleged to have been lost, stolen or destroyed.

    1.10  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 be
    treated as a pooling of interests for accounting purposes.

                                       5
<PAGE>
    1.11  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 Company and Merger Sub, the
officers and directors of Company and Merger Sub will take all such lawful and
necessary action.

                                   ARTICLE II
                   REPRESENTATIONS AND WARRANTIES OF COMPANY

    As of the date hereof and as of the Closing Date, Company represents and
warrants to Parent and Merger Sub, subject to such exceptions as are
specifically disclosed in writing in the disclosure letter supplied by Company
to Parent dated as of the date hereof and certified by a duly authorized officer
of Company and whether or not referenced in any specific section herein, which
disclosure shall provide an exception to or otherwise qualify the
representations or warranties of Company specifically referred to in such
disclosure (the "COMPANY SCHEDULE"), as follows:

    2.1  ORGANIZATION AND QUALIFICATION; SUBSIDIARIES

        (a) Each of Company and its subsidiaries is a corporation duly
    organized, validly existing and in good standing under the laws of the
    jurisdiction of its incorporation and has the requisite corporate power and
    authority to own, lease and operate its assets and properties and to carry
    on its business as it is now being conducted, except where the failure to do
    so would not, individually, or in the aggregate, have a Material Adverse
    Effect. Each of Company and its subsidiaries is in possession of all
    franchises, grants, authorizations, licenses, permits, easements, consents,
    certificates, approvals and orders ("APPROVALS") necessary to own, lease and
    operate the properties it purports to own, operate or lease and to carry on
    its business as it is now being conducted, except where the failure to have
    such Approvals would not, individually or in the aggregate, have a Material
    Adverse Effect on Company.

        (b) Company has no subsidiaries except for the corporations identified
    in Section 2.1(b) of the Company Schedule. Neither Company nor any of its
    subsidiaries has agreed nor is obligated to make nor is bound by any
    written, oral or other agreement, contract, subcontract, lease, binding
    understanding, instrument, note, option, warranty, purchase order, license,
    sublicense, insurance policy, benefit plan, commitment or undertaking of any
    nature, as of the date hereof or as may hereafter be in effect (a
    "CONTRACT") under which it may become obligated to make, any future
    investment in or capital contribution to any other entity. Neither Company
    nor any of its subsidiaries directly or indirectly owns any equity or
    similar interest in or any interest convertible, exchangeable or exercisable
    for, any equity or similar interest in, any corporation, partnership, joint
    venture or other business, association or entity.

        (c) Company and each of its subsidiaries is qualified to do business as
    a foreign corporation, and is in good standing, under the laws of all
    jurisdictions where the nature of their business requires such qualification
    and where the failure to so qualify would have a Material Adverse Effect (as
    defined in Section 8.3) on Company.

    2.2  CERTIFICATE OF INCORPORATION AND BYLAWS

    Company has previously furnished to Parent a complete and correct copy of
its Certificate of Incorporation and Bylaws as amended to date (together, the
"COMPANY CHARTER DOCUMENTS"). Such Company Charter Documents and equivalent
organizational documents of each of its subsidiaries are in full force and
effect. Company is not in violation of any of the provisions of the Company
Charter Documents, and no subsidiary of Company is in violation of its
equivalent organizational documents.

                                       6
<PAGE>
    2.3  CAPITALIZATION

        (a) The authorized capital stock of Company consists of 65,000,000
    shares of Company Common Stock and 10,000,000 shares of Preferred Stock
    ("COMPANY PREFERRED STOCK"), each having a par value of $0.01 per share. At
    the close of business on the date of this Agreement (i) 19,705,506 shares of
    Company Common Stock (including treasury shares) were issued and
    outstanding, all of which are validly issued, fully paid and nonassessable
    (not including any shares issued on or after such date upon exercise of
    options outstanding on the date hereof); (ii) no shares of Company Common
    Stock were held by subsidiaries of Company; (iii) 407,071 shares of Company
    Common Stock were available for future issuance pursuant to Company's ESPP;
    (iv) 595,346 shares of Company Common Stock were reserved for issuance upon
    the exercise of outstanding options to purchase Company Common Stock under
    the 1986 Plan; (v) 98,438 shares of Company Common Stock were available for
    future grant under the Directors Plan; (vi) 572,624 shares of Company Common
    Stock were available for future grant under the 1995 Plan; (vii) 114,151
    shares of Company Common Stock were reserved for issuance upon conversion of
    warrants of Company (the "WARRANTS") and (viii) 3,921,396 shares of Company
    Common Stock were reserved for future issuance pursuant to the Stock Option
    Agreement. As of the date hereof, no shares of Company Preferred Stock were
    issued or outstanding. Section 2.3(a) of the Company Schedule sets forth the
    following information with respect to each Company Stock Option (as defined
    in Section 5.8) outstanding as of the date of this Agreement: (i) the name
    and address of the optionee; (ii) the particular plan pursuant to which such
    Company Stock Option was granted; (iii) the number of shares of Company
    Common Stock subject to such Company Stock Option; (iv) the exercise price
    of such Company Stock Option; (v) the date on which such Company Stock
    Option was granted; (vi) the applicable vesting schedule; (vii) the date on
    which such Company Stock Option expires; and (viii) whether the
    exercisability of such option will be accelerated in any way by the
    transactions contemplated by this Agreement, and indicates the extent of
    acceleration. Company has made available to Parent accurate and complete
    copies of all stock option plans pursuant to which Company has granted such
    Company Stock Options that are currently outstanding and the form of all
    stock option agreements evidencing such Company Stock Options. All shares of
    Company Common Stock subject to issuance as aforesaid, upon issuance on the
    terms and conditions specified in the instrument pursuant to which they are
    issuable, would be duly authorized, validly issued, fully paid and
    nonassessable. Except as set forth in Section 2.3(a) of the Company
    Schedule, there are no commitments or agreements of any character to which
    Company is bound obligating Company to accelerate the vesting of any Company
    Stock Option as a result of the Merger. All outstanding shares of Company
    Common Stock, all outstanding Company Stock Options, and all outstanding
    shares of capital stock of each subsidiary of Company have been issued and
    granted in compliance with (i) all applicable securities laws and other
    applicable Legal Requirements (as defined below) and (ii) all requirements
    set forth in applicable Contracts. For the purposes of this Agreement,
    "LEGAL REQUIREMENTS" means any federal, state, local, municipal, foreign or
    other law, statute, constitution, principle of common law, resolution,
    ordinance, code, edict, decree, rule, regulation, ruling or requirement
    issues, enacted, adopted, promulgated, implemented or otherwise put into
    effect by or under the authority of any Governmental Entity (as defined
    below) and (ii) all requirements set forth in applicable contracts,
    agreements, and instruments.

        (b) Except for securities Company owns free and clear of all liens,
    pledges, hypothecations, charges, mortgages, security interests,
    encumbrances, claims, infringements, interferences, options, right of first
    refusals, preemptive rights, community property interests or restriction of
    any nature (including any restriction on the voting of any security, any
    restriction on the transfer of any security or other asset, any restriction
    on the possession, exercise or transfer of any other attribute of ownership
    of any asset) directly or indirectly through one or more subsidiaries, and
    except for shares of capital stock or other similar ownership interests of
    subsidiaries of Company that are owned by certain nominee equity holders as
    required by the applicable law of the jurisdiction of organization of such
    subsidiaries (which shares or other interests do not materially affect
    Company's control of such

                                       7
<PAGE>
    subsidiaries), as of the date of this Agreement, there are no equity
    securities, partnership interests or similar ownership interests of any
    class of equity security of any subsidiary of Company, 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 2.3(b) of the
    Company Schedule or as set forth in Section 2.3(a) hereof and except for the
    Stock Option Agreement, there are no subscriptions, options, warrants,
    equity securities, partnership interests or similar ownership interests,
    calls, rights (including preemptive rights), commitments or agreements of
    any character to which Company or any of its subsidiaries is a party or by
    which it is bound obligating Company 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 cause the repurchase, redemption or
    acquisition of, any shares of capital stock, partnership interests or
    similar ownership interests of Company or any of its subsidiaries or
    obligating Company or any of its subsidiaries to grant, extend, accelerate
    the vesting of or enter into any such subscription, option, warrant, equity
    security, call, right, commitment or agreement. As of the date of this
    Agreement, except as contemplated by this Agreement and except for the
    Company Rights Plan, there are no registration rights and there is, except
    for the Company Voting Agreements, no voting trust, proxy, rights plan,
    antitakeover plan or other agreement or understanding to which Company or
    any of its subsidiaries is a party or by which they are bound with respect
    to any equity security of any class of Company or with respect to any equity
    security, partnership interest or similar ownership interest of any class of
    any of its subsidiaries. Stockholders of Company will not be entitled to
    dissenters' rights under applicable state law in connection with the Merger.

    2.4  AUTHORITY RELATIVE TO THIS AGREEMENT

    Company has all necessary corporate power and authority to execute and
deliver this Agreement and the Stock Option Agreement and to perform its
obligations hereunder and thereunder and, subject to obtaining the approval of
the stockholders of Company of the Merger, to consummate the transactions
contemplated hereby and thereby. The execution and delivery of this Agreement
and the Stock Option Agreement by Company and the consummation by Company of the
transactions contemplated hereby and thereby have been duly and validly
authorized by all necessary corporate action on the part of Company and no other
corporate proceedings on the part of Company are necessary to authorize this
Agreement, the Stock Option Agreement or to consummate the transactions so
contemplated (other than the approval and adoption of this Agreement and the
Merger by holders of a majority of the outstanding shares of Company Common
Stock in accordance with Delaware Law and the Company Charter Documents). This
Agreement and the Stock Option Agreement have been duly and validly executed and
delivered by Company and, assuming the due authorization, execution and delivery
by Parent and Merger Sub, constitute legal and binding obligations of Company,
enforceable against Company in accordance with their respective terms.

    2.5  NO CONFLICT; REQUIRED FILINGS AND CONSENTS

        (a) The execution and delivery of this Agreement and the Stock Option
    Agreement by Company do not, and the performance of this Agreement and the
    Stock Option Agreement by Company shall not, (i) conflict with or violate
    the Company Charter Documents or the equivalent organizational documents of
    any of Company's subsidiaries, (ii) subject to obtaining the approval of
    Company's stockholders of this Agreement and the Merger and compliance with
    the requirements set forth in Section 2.5(b) below, conflict with or violate
    any law, rule, regulation, order, judgment or decree applicable to Company
    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 materially impair Company's or any of its
    subsidiaries' 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 Company or any of its subsidiaries
    pursuant to, any

                                       8
<PAGE>
    material note, bond, mortgage, indenture, contract, agreement, lease,
    license, permit, franchise or other instrument or obligation to which
    Company or any of its subsidiaries is a party or by which Company or any of
    its subsidiaries or its or any of their respective properties are bound or
    affected.

        (b) The execution and delivery of this Agreement and the Stock Option
    Agreement by Company do not, and the performance of this Agreement by
    Company shall not, require any consent, approval, authorization or permit
    of, or filing with or notification to, any court, administrative agency,
    commission, governmental or regulatory authority, domestic or foreign (a
    "GOVERNMENTAL ENTITY"), except (A) for applicable requirements, if any, of
    the Securities Act of 1933, as amended (the "SECURITIES ACT"), the
    Securities Exchange Act of 1934, as amended (the "EXCHANGE ACT"), state
    securities laws ("BLUE SKY LAWS"), the pre-merger notification requirements
    (the "HSR APPROVAL") of the Hart-Scott-Rodino Antitrust Improvements Act of
    1976, as amended (the "HSR ACT") and of foreign Governmental Entities and
    the rules and regulations thereunder, the rules and regulations of Nasdaq,
    and the filing and recordation of the Merger Documents as required by
    Delaware Law and (B) where the failure to obtain such consents, approvals,
    authorizations or permits, or to make such filings or notifications, could
    not, individually or in the aggregate, reasonably be expected to have a
    Material Adverse Effect on Company or, after the Effective Time, Parent, or
    prevent consummation of the Merger or otherwise prevent the parties hereto
    from performing their obligations under this Agreement.

    2.6  COMPLIANCE; PERMITS

        (a) Neither Company nor any of its subsidiaries is in conflict with, or
    in default or violation of, (i) any law, rule, regulation, order, judgment
    or decree applicable to Company or any of its subsidiaries or by which its
    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
    Company or any of its subsidiaries is a party or by which Company or any of
    its subsidiaries or its or any of their respective properties is bound or
    affected, except for any conflicts, defaults or violations that
    (individually or in the aggregate) would not cause Company to lose any
    material benefit or incur any material liability. No investigation or review
    by any governmental or regulatory body or authority is pending or, to the
    knowledge of Company, threatened against Company or its subsidiaries, nor
    has any governmental or regulatory body or authority indicated to Company an
    intention to conduct the same, other than, in each such case, those the
    outcome of which could not, individually or in the aggregate, reasonably be
    expected to have the effect of prohibiting or materially impairing any
    business practice of Company or any of its subsidiaries, any acquisition of
    material property by Company or any of its subsidiaries or the conduct of
    business by Company or any of its subsidiaries.

        (b) Company and its subsidiaries hold all permits, licenses, variances,
    exemptions, orders and approvals from governmental authorities which are
    material to operation of the business of Company and its subsidiaries taken
    as a whole (collectively, the "COMPANY PERMITS"). Company and its
    subsidiaries are in compliance in all material respects with the terms of
    the Company Permits.

    2.7  SEC FILINGS; FINANCIAL STATEMENTS

        (a) Company has made available to Parent a correct and complete copy of
    each report, schedule, registration statement and definitive proxy statement
    filed by Company with the Securities and Exchange Commission ("SEC") since
    September 30, 1997 (the "COMPANY SEC REPORTS"), which are all the forms,
    reports and documents required to be filed by Company with the SEC since
    September 30, 1997. The Company SEC Reports (A) were prepared in accordance
    with the requirements of the Securities Act or the Exchange Act, as the case
    may be, and (B) did not at the time they were filed (and 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 light of the circumstances

                                       9
<PAGE>
under which they were made, not misleading. None of Company's subsidiaries is
required to file any reports or other documents with the SEC.

        (b) Each set of consolidated financial statements (including, in each
    case, any related notes thereto) contained in the Company SEC Reports 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 or, in the case of
    unaudited statements, do not contain footnotes as permitted by Form 10-Q of
    the Exchange Act) and each fairly presents in all material respects the
    consolidated financial position of Company and its subsidiaries at the
    respective dates thereof and the consolidated results of its operations and
    cash flows for the periods indicated, except that the unaudited interim
    financial statements were or are subject to normal adjustments which were
    not or are not expected to be material in amount.

        (c) Company has previously furnished to Parent 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 Company with the SEC
    pursuant to the Securities Act or the Exchange Act.

    2.8  NO UNDISCLOSED LIABILITIES

    Neither Company 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 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
Company and its subsidiaries taken as a whole, except (i) liabilities provided
for in Company's balance sheet as of September 30, 1999 or (ii) liabilities
incurred since September 30, 1999 in the ordinary course of business, none of
which is material to the business, results of operations or financial condition
of Company and its subsidiaries, taken as a whole.

    2.9  ABSENCE OF CERTAIN CHANGES OR EVENTS

    Since September 30, 1999, there has not been: (i) any Material Adverse
Effect on Company, (ii) any declaration, setting aside or payment of any
dividend on, or other distribution (whether in cash, stock or property) in
respect of, any of Company's or any of its subsidiaries' capital stock, or any
purchase, redemption or other acquisition by Company of any of Company's capital
stock or any other securities of Company or its subsidiaries or any options,
warrants, calls or rights to acquire any such shares or other securities except
for repurchases from employees following their termination pursuant to the terms
of their pre-existing stock option or purchase agreements, (iii) any split,
combination or reclassification of any of Company's or any of its subsidiaries'
capital stock, (iv) any granting by Company or any of its subsidiaries of any
increase in compensation or fringe benefits, except for normal increases of cash
compensation in the ordinary course of business consistent with past practice,
or any payment by Company or any of its subsidiaries of any bonus, except for
bonuses made in the ordinary course of business consistent with past practice or
any granting by Company or any of its subsidiaries of any increase in severance
or termination pay or any entry by Company or any of its subsidiaries into any
currently effective employment, severance, termination or indemnification
agreement or any agreement the benefits of which are contingent or the terms of
which are materially altered upon the occurrence of a transaction involving
Company of the nature contemplated hereby, (v) entry by Company or any of its
subsidiaries into any licensing or other agreement with regard to the
acquisition or disposition of any Intellectual Property (as defined in
Section 2.18) other than licenses in the ordinary course of business consistent
with past practice or any amendment or consent with respect to any licensing
agreement filed or required to be filed by Company with the SEC, (vi) any
material change by Company in its accounting methods, principles or practices,
except as required by concurrent changes in GAAP, or (vii) any revaluation by
Company of any of its assets, including, without limitation, writing down the
value of capitalized inventory or writing off notes or accounts receivable or
any sale of assets of Company other than in the ordinary course of business.

                                       10
<PAGE>
    2.10  ABSENCE OF LITIGATION

    There are no claims, actions, suits or proceedings pending or, to the
knowledge of Company, threatened (or, to the knowledge of Company, any
governmental or regulatory investigation pending or threatened) against Company
or any of its subsidiaries or any properties or rights of Company or any of its
subsidiaries, before any court, arbitrator or administrative, governmental or
regulatory authority or body, domestic or foreign.

    2.11  EMPLOYEE MATTERS AND BENEFIT PLANS

        (a)  DEFINITIONS.  With the exception of the definition of "Affiliate"
    set forth in Section 2.11(a)(i) below (which definition shall apply only to
    this Section 2.11, for purposes of this Agreement, the following terms shall
    have the meanings set forth below:

           (i) "AFFILIATE" shall mean any other person or entity under common
       control with Company within the meaning of Section 414(b), (c), (m) or
       (o) of the Code and the regulations issued thereunder;

           (ii) "CODE" shall mean the Internal Revenue Code of 1986, as amended;

          (iii) "COMPANY EMPLOYEE PLAN" shall mean any plan, program, policy,
       practice, contract, agreement or other arrangement providing for
       compensation, severance, termination pay, deferred compensation,
       performance awards, stock or stock-related awards, fringe benefits or
       other employee benefits or remuneration of any kind, whether written or
       unwritten or otherwise, funded or unfunded, including without limitation,
       each "employee benefit plan," within the meaning of Section 3(3) of ERISA
       which is or has been maintained, contributed to, or required to be
       contributed to, by Company or any Affiliate for the benefit of any
       Employee, or with respect to which Company or any Affiliate has or may
       have any liability or obligation;

           (iv) "COBRA" shall mean the Consolidated Omnibus Budget
       Reconciliation Act of 1985, as amended;

           (v) "DOL" shall mean the Department of Labor;

           (vi) "EMPLOYEE" shall mean any current or former employee, consultant
       or director of Company or any Affiliate;

          (vii) "EMPLOYEE AGREEMENT" shall mean each management, employment,
       severance, consulting, relocation, repatriation, expatriation or other
       agreement, contract or understanding in effect between Company or any
       Affiliate and any Employee;

         (viii) "ERISA" shall mean the Employee Retirement Income Security Act
       of 1974, as amended;

           (ix) "FMLA" shall mean the Family Medical Leave Act of 1993, as
       amended;

           (x) "INTERNATIONAL EMPLOYEE PLAN" shall mean each Company Employee
       Plan that has been adopted or maintained by Company or any Affiliate,
       whether informally or formally, or with respect to which Company or any
       Affiliate will or may have any liability, for the benefit of Employees
       who perform services outside the United States;

           (xi) "IRS" shall mean the Internal Revenue Service;

          (xii) "MULTIEMPLOYER PLAN" shall mean any "Pension Plan" (as defined
       below) which is a "multiemployer plan," as defined in Section 3(37) of
       ERISA;

         (xiii) "PBGC" shall mean the Pension Benefit Guaranty Corporation; and

                                       11
<PAGE>
          (xiv) "PENSION PLAN" shall mean each Company Employee Plan which is an
       "employee pension benefit plan," within the meaning of Section 3(2) of
       ERISA.

        (b)  SCHEDULE.  Section 2.11(b) of the Company Schedule contains an
    accurate and complete list of each Company Employee Plan, International
    Employee Plan, and each Employee Agreement. Company does not have any plan
    or commitment to establish any new Company Employee Plan, International
    Employee Plan, or Employee Agreement, to modify any Company Employee Plan or
    Employee Agreement (except to the extent required by law or to conform any
    such Company Employee Plan or Employee Agreement to the requirements of any
    applicable law, in each case as previously disclosed to Parent in writing,
    or as required by this Agreement), or to adopt or enter into any Company
    Employee Plan, International Employee Plan, or Employee Agreement.

        (c)  DOCUMENTS.  Company has provided to Parent: (i) correct and
    complete copies of all documents embodying each Company Employee Plan,
    International Employee Plan, and each Employee Agreement including (without
    limitation) all amendments thereto and all related trust documents;
    (ii) the most recent annual actuarial valuations, if any, prepared for each
    Company Employee Plan; (iii) the three (3) most recent annual reports (Form
    Series 5500 and all schedules and financial statements attached thereto), if
    any, required under ERISA or the Code in connection with each Company
    Employee Plan; (iv) if the Company Employee Plan is funded, the most recent
    annual and periodic accounting of Company Employee Plan assets; (v) the most
    recent summary plan description together with the summary(ies) of material
    modifications thereto, if any, required under ERISA with respect to each
    Company Employee Plan; (vi) all IRS determination, opinion, notification and
    advisory letters, and all applications and correspondence to or from the IRS
    or the DOL with respect to any such application or letter; (vii) all
    material written agreements and contracts relating to each Company Employee
    Plan, including, but not limited to, administrative service agreements,
    group annuity contracts and group insurance contracts; (viii) all
    communications material to any Employee or Employees relating to any Company
    Employee Plan and any proposed Company Employee Plans, in each case,
    relating to any amendments, terminations, establishments, increases or
    decreases in benefits, acceleration of payments or vesting schedules or
    other events which would result in any material liability to Company;
    (ix) all correspondence to or from any governmental agency relating to any
    Company Employee Plan; (x) all COBRA forms and related notices (or such
    forms and notices as required under comparable law); (xi) all policies
    pertaining to fiduciary liability insurance covering the fiduciaries for
    each Company Employee Plan; (xii) the three (3) most recent plan years
    discrimination tests for each Company Employee Plan; and (xiii) all
    registration statements, annual reports (Form 11-K and all attachments
    thereto) and prospectuses prepared in connection with each Company Employee
    Plan.

        (d)  EMPLOYEE PLAN COMPLIANCE.  Except as set forth in Section 2.11(d)
    of the Company Schedule, (i) Company has performed in all material respects
    all obligations required to be performed by it under, is not in default or
    violation of, and has no knowledge of any default or violation by any other
    party to each Company Employee Plan, and each Company Employee Plan has been
    established and maintained in all material respects in accordance with its
    terms and in compliance with all applicable laws, statutes, orders, rules
    and regulations, including but not limited to ERISA or the Code; (ii) each
    Company Employee Plan intended to qualify under Section 401(a) of the Code
    and each trust intended to qualify under Section 501(a) of the Code has
    either received a favorable determination, opinion, notification or advisory
    letter from the IRS with respect to each such Plan as to its qualified
    status under the Code, including all amendments to the Code effected by the
    Tax Reform Act of 1986 and subsequent legislation, or has remaining a period
    of time under applicable Treasury regulations or IRS pronouncements in which
    to apply for such a letter and make any amendments necessary to obtain a
    favorable determination as to the qualified status of each such Company
    Employee Plan; (iii) no "prohibited transaction," within the meaning of
    Section 4975 of the Code or Sections 406 and 407 of ERISA, and not otherwise
    exempt under Section 4975 or Section 408

                                       12
<PAGE>
    of ERISA (or any administrative class exemption issued thereunder), has
    occurred with respect to any Company Employee Plan; (iv) there are no
    actions, suits or claims pending, or, to the knowledge of Company,
    threatened or reasonably anticipated (other than routine claims for
    benefits) against any Company Employee Plan or against the assets of any
    Company Employee Plan; (v) each Company Employee Plan (other than any stock
    option plan) can be amended, terminated or otherwise discontinued after the
    Effective Time, without material liability to Parent, Company or any of its
    Affiliates (other than ordinary administration expenses); (vi) there are no
    audits, inquiries or proceedings pending or, to the knowledge of Company or
    any Affiliates, threatened by the IRS or DOL with respect to any Company
    Employee Plan; and (vii) neither Company nor any Affiliate is subject to any
    penalty or tax with respect to any Company Employee Plan under
    Section 502(i) of ERISA or Sections 4975 through 4980 of the Code.

        (e)  PENSION PLAN.  Neither Company nor any Affiliate has ever
    maintained, established, sponsored, participated in, or contributed to, any
    Pension Plan which is subject to Title IV of ERISA or Section 412 of the
    Code.

        (f)  MULTIEMPLOYER AND MULTIPLE EMPLOYER PLANS.  At no time has Company
    or any Affiliate contributed to or been obligated to contribute to any
    Multiemployer Plan. Neither Company, nor any Affiliate has at any time ever
    maintained, established, sponsored, participated in, or contributed to any
    multiple employer plan, as described in Section 413(c) of the Code.

        (g)  NO POST-EMPLOYMENT OBLIGATIONS.  Except as set forth in
    Section 2.11(g) of the Company Schedule, no Company Employee Plan provides,
    or reflects or represents any liability to provide retiree health to any
    person for any reason, except as may be required by COBRA or other
    applicable statute, and Company has never represented, promised or
    contracted (whether in oral or written form) to any Employee (either
    individually or to Employees as a group) or any other person that such
    Employee(s) or other person would be provided with retiree health, except to
    the extent required by statute.

        (h)  HEALTH CARE COMPLIANCE.  Neither Company nor any Affiliate has,
    prior to the Effective Time and in any material respect, violated any of the
    health care continuation requirements of COBRA, the requirements of FMLA,
    the requirements of the Health Insurance Portability and Accountability Act
    of 1996, the requirements of the Women's Health and Cancer Rights Act, the
    requirements of the Newborns' and Mothers' Health Protection Act of 1996, or
    any amendment to each such Act, or any similar provisions of state law
    applicable to its Employees.

        (i)  EFFECT OF TRANSACTION.

           (i) Except as set forth in Section 2.11(i) of the Company Schedule,
       the execution of this Agreement and the consummation of the transactions
       contemplated hereby will not (either alone or upon the occurrence of any
       additional or subsequent events) constitute an event under any Company
       Employee Plan, Employee Agreement, trust or loan that will or may result
       in any payment (whether of severance pay or otherwise), acceleration,
       forgiveness of indebtedness, vesting, distribution, increase in benefits
       or obligation to fund benefits with respect to any Employee.

           (ii) Except as set forth in Section 2.11(i) of the Company Schedule,
       no payment or benefit which will or may be made by Company or its
       Affiliates with respect to any Employee will be characterized as a
       "parachute payment," within the meaning of Section 280G(b)(2) of the
       Code.

        (j)  EMPLOYMENT MATTERS.  Company: (i) is in compliance in all respects
    with all applicable foreign, federal, state and local laws, rules and
    regulations respecting employment eligibility, employment, employment
    practices, terms and conditions of employment and wages and hours, in each
    case, with respect to Employees; (ii) has withheld and reported all amounts
    required by law or by agreement to be withheld and reported with respect to
    wages, salaries and other payments to

                                       13
<PAGE>
    Employees; (iii) is not liable for any arrears of wages or any taxes or any
    penalty for failure to comply with any of the foregoing; and (iv) is not
    liable for any payment to any trust or other fund governed by or maintained
    by or on behalf of any governmental authority, with respect to unemployment
    compensation benefits, social security or other benefits or obligations for
    Employees (other than routine payments to be made in the normal course of
    business and consistent with past practice). There are no pending,
    threatened or reasonably anticipated claims or actions against Company under
    any worker's compensation policy or long-term disability policy.

        (k)  LABOR.  No work stoppage or labor strike against Company is
    pending, threatened or reasonably anticipated. Company does not know of any
    activities or proceedings of any labor union to organize any Employees.
    Except as set forth in Section 2.11(k) of the Company Schedule, there are no
    actions, suits, claims, labor disputes or grievances pending, or, to the
    knowledge of Company, threatened or reasonably anticipated relating to any
    labor, safety or discrimination matters involving any Employee, including,
    without limitation, charges of unfair labor practices or discrimination
    complaints, which, if adversely determined, would, individually or in the
    aggregate, result in any material liability to Company. Neither Company nor
    any of its subsidiaries has engaged in any unfair labor practices within the
    meaning of the National Labor Relations Act. Except as set forth in
    Section 2.11(k) of the Company Schedule, Company is not presently, nor has
    it been in the past, a party to, or bound by, any collective bargaining
    agreement or union contract with respect to Employees and no collective
    bargaining agreement is being negotiated by Company.

        (l)  INTERNATIONAL EMPLOYEE PLAN.  Each International Employee Plan has
    been established, maintained and administered in compliance with its terms
    and conditions and with the requirements prescribed by any and all statutory
    or regulatory laws that are applicable to such International Employee Plan.
    Furthermore, no International Employee Plan has unfunded liabilities, that
    as of the Effective Time, will not be offset by insurance or fully accrued.
    Except as required by law, no condition exists that would prevent Company or
    Parent from terminating or amending any International Employee Plan at any
    time for any reason.

    2.12  REGISTRATION STATEMENT; PROXY STATEMENT

    None of the information supplied or to be supplied by Company for inclusion
or incorporation by reference in (i) the registration statement on Form S-4 to
be filed with the SEC by Parent in connection with the issuance of the Parent
Common Stock in or as a result of the Merger (the "S-4") will, at the time the
S-4 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, in light of the
circumstances under which they are made, not misleading; and (ii) the joint
proxy statement/prospectus to be filed with the SEC by Company and Parent
pursuant to Section 5.1(a) hereof (the "PROXY STATEMENT/PROSPECTUS") will, at
the dates mailed to the stockholders of Company and Parent, at the times of the
stockholders meetings of Company (the "COMPANY STOCKHOLDERS' MEETING") and of
Parent (the "PARENT STOCKHOLDERS' MEETING" and together with the Company
Stockholders' Meeting, the "STOCKHOLDERS MEETING") in connection with the
transactions contemplated hereby and as of 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 misleading. The Proxy
Statement/Prospectus will comply as to form in all material respects with the
provisions of the Exchange Act and the rules and regulations promulgated by the
SEC thereunder. Notwithstanding the foregoing, Company makes no representation
or warranty with respect to any information supplied by Parent or Merger Sub
which is contained in any of the foregoing documents.

    2.13  RESTRICTIONS ON BUSINESS ACTIVITIES

    There is no agreement, commitment, judgment, injunction, order or decree
binding upon Company or its subsidiaries or to which Company or any of its
subsidiaries is a party which has or could reasonably be

                                       14
<PAGE>
expected to have the effect of prohibiting or materially impairing any business
practice of Company or any of its subsidiaries, any acquisition of property by
Company or any of its subsidiaries or the conduct of business by Company or any
of its subsidiaries as currently conducted.

    2.14  TITLE TO PROPERTY

    Neither Company nor any of its subsidiaries owns any material real property.
Company and each of its subsidiaries have good and defensible title to all of
their material properties and assets, free and clear of all liens, charges and
encumbrances except liens for taxes not yet due and payable and such liens or
other imperfections of title, if any, as do not materially detract from the
value of or materially interfere with the present use of the property affected
thereby; and all leases pursuant to which Company or any of its subsidiaries
lease from others material real or personal property are in good standing, valid
and effective in accordance with their respective terms, and there is not, under
any of such leases, any existing material default or event of default of Company
or any of its subsidiaries or, to Company's knowledge, any other party (or any
event which with notice or lapse of time, or both, would constitute a material
default and in respect of which Company or subsidiary has not taken adequate
steps to prevent such default from occurring). All the plants, structures and
equipment of Company and its subsidiaries, except such as may be under
construction, are in good operating condition and repair, in all material
respects.

    2.15  TAXES

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

        (b)  TAX RETURNS AND AUDITS.

           (i) Company and each of its subsidiaries have timely filed all
       federal, state, local and foreign returns, estimates, information
       statements and reports ("RETURNS") relating to Taxes required to be filed
       by Company and each of its subsidiaries with any Tax authority, except
       such Returns which are not, individually or in the aggregate, material to
       Company. Company and each of its subsidiaries have paid all Taxes
       required to be paid, except such Taxes which are not, individually or in
       the aggregate, material to Company.

           (ii) Company and each of its subsidiaries as of the Effective Time
       will have withheld with respect to all employees, independent contractors
       or other persons all federal and state income Taxes, Taxes pursuant to
       the Federal Insurance Contribution Act, Taxes pursuant to the Federal
       Unemployment Tax Act and other Taxes required to be withheld, except such
       Taxes which are not, individually or in the aggregate, material to
       Company.

          (iii) Neither Company nor any of its subsidiaries has been delinquent
       in the payment of any material Tax nor is there any material Tax
       deficiency outstanding, proposed or assessed against Company or any of
       its subsidiaries, nor has Company or any of its subsidiaries executed any
       unexpired waiver of any statute of limitations on or extending the period
       for the assessment or collection of any Tax.

           (iv) No audit or other examination of any Return of Company or any of
       its subsidiaries by any Tax authority is presently in progress, nor has
       Company or any of its subsidiaries been notified of any request for such
       an audit or other examination.

                                       15
<PAGE>
           (v) No adjustment relating to any Returns filed by Company or any of
       its subsidiaries has been proposed, formally or informally, by any Tax
       authority to Company or any of its subsidiaries or any representative
       thereof.

           (vi) Neither Company nor any of its subsidiaries has any liability
       for any material unpaid Taxes which has not been accrued for or reserved
       on Company balance sheet dated September 30, 1999 in accordance with
       GAAP, whether asserted or unasserted, contingent or otherwise, other than
       any liability for unpaid Taxes that may have accrued since October 1,
       1999 in connection with the operation of the business of Company and its
       subsidiaries in the ordinary course. There are no liens with respect to
       Taxes on any of the assets of Company, other than liens which are not,
       individually or in the aggregate, material or customary liens for current
       Taxes not yet due and payable.

          (vii) There is no contract, agreement, plan or arrangement to which
       Company or any of its subsidiaries is a party as of the date of this
       Agreement, including but not limited to the provisions of this Agreement,
       covering any employee or former employee of Company or any of its
       subsidiaries that, individually or collectively, could reasonably be
       expected to give rise to the payment of any amount that would not be
       deductible pursuant to Sections 280G, 404 or 162(m) of the Code. There is
       no contract, agreement, plan or arrangement to which Company or any of
       its subsidiaries is a party or by which it is bound to compensate any
       individual for excise taxes paid pursuant to Section 4999 of the Code.

         (viii) Neither Company nor any of its subsidiaries has filed any
       consent agreement under Section 341(f) of the Code or agreed to have
       Section 341(f)(2) of the Code apply to any disposition of a subsection
       (f) asset (as defined in Section 341(f)(4) of the Code) owned by Company
       or any of its subsidiaries.

           (ix) Neither Company nor any of its subsidiaries (A) has ever been a
       member of a consolidated group other than a consolidated group of which
       Company is the parent corporation or (B) is party to or has any
       obligation under any tax-sharing, tax indemnity or tax allocation
       agreement or arrangement.

           (x) None of Company's or its subsidiaries' assets are tax exempt use
       property within the meaning of Section 168(h) of the Code.

           (xi) Neither Company nor any of its subsidiaries has distributed the
       stock of any corporation in a transaction satisfying the requirements of
       Section 355 of the Code since April 16, 1997. The stock of neither
       Company nor any of its subsidiaries has been distributed in a transaction
       satisfying the requirements of Section 355 of the Code since April 16,
       1997.

          (xii) Neither Company nor any of its subsidiaries owns any property,
       the indirect transfer of which pursuant to this Agreement would give rise
       to any documentary, stamp or other transfer Tax.

    2.16  ENVIRONMENTAL MATTERS

        (a)  HAZARDOUS MATERIAL.  Except as would not result in material
    liability to Company or any of its subsidiaries, 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 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, but excluding office and
    janitorial supplies, (a "HAZARDOUS MATERIAL") are present, as a result of
    the actions of Company or any of its subsidiaries or any affiliate of
    Company, or, to Company's

                                       16
<PAGE>
    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 Company or any of its subsidiaries has
    at any time owned, operated, occupied or leased.

        (b)  HAZARDOUS MATERIALS ACTIVITIES.  Except as would not result in a
    material liability to Company (in any individual case or in the aggregate)
    (i) neither Company 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, and (ii) neither Company nor any of its subsidiaries has
    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.  Company and its subsidiaries currently hold all
    environmental approvals, permits, licenses, clearances and consents (the
    "COMPANY ENVIRONMENTAL PERMITS") necessary for the conduct of Company's and
    its subsidiaries' Hazardous Material Activities and other businesses of
    Company and its subsidiaries as such activities and businesses are currently
    being conducted, except where the absence of such Company Environmental
    Permits would not cause a Material Adverse Effect.

        (d)  ENVIRONMENTAL LIABILITIES.  No action, proceeding, revocation
    proceeding, amendment procedure, writ or injunction is pending, and to
    Company's knowledge, no action, proceeding, revocation proceeding, amendment
    procedure, writ or injunction has been threatened by any Governmental Entity
    against Company or any of its subsidiaries in a writing delivered to Company
    or any of its subsidiaries concerning any Company Environmental Permit,
    Hazardous Material or any Hazardous Materials Activity of Company or any of
    its subsidiaries. Company is not aware of any fact or circumstance which
    could involve Company or any of its subsidiaries in any environmental
    litigation or impose upon Company any material environmental liability.

    2.17  BROKERS

    Other than fees owed to Company's financial advisors, S.G. Cowen and Volpe
Brown Whelan & Co., as set forth in Section 2.17 to the Company Schedule,
Company has not incurred, nor will it incur, directly or indirectly, any
liability for brokerage or finders fees or agent's commissions or any similar
charges in connection with this Agreement or any transaction contemplated
hereby.

    2.18  INTELLECTUAL PROPERTY

    For the purposes of this Agreement, the following terms have the following
definitions:

    "INTELLECTUAL PROPERTY" shall mean any or all of the following and all
    worldwide common law and statutory rights in, arising out of, or associated
    therewith: (i) patents and applications therefor and all reissues,
    divisions, renewals, extensions, provisionals, continuations and
    continuations-in-part thereof ("PATENTS"); (ii) inventions (whether
    patentable or not), invention disclosures, improvements, trade secrets,
    proprietary information, know how, technology, technical data and customer
    lists, and all documentation relating to any of the foregoing;
    (iii) copyrights, copyrights registrations and applications therefor, and
    all other rights corresponding thereto throughout the world; (iv) domain
    names, uniform resource locators ("URLS") and other names and locators
    associated with the Internet ("DOMAIN NAMES"); (v) industrial designs and
    any registrations and applications therefor; (vi) trade names, logos, common
    law trademarks and service marks, trademark and service mark registrations
    and applications therefor; (vii) all databases and data collections and all
    rights therein; (viii) all moral and economic rights of authors and
    inventors, however denominated, and (ix) any similar or equivalent rights to
    any of the foregoing (as applicable).

                                       17
<PAGE>
    "COMPANY INTELLECTUAL PROPERTY" shall mean any Intellectual Property that is
    owned by, or exclusively licensed to, Company and it subsidiaries.

    "REGISTERED INTELLECTUAL PROPERTY" means all Intellectual Property that is
    the subject of an application, certificate, filing, registration or other
    document issued, filed with, or recorded by any private, state, government
    or other legal authority.

    "COMPANY REGISTERED INTELLECTUAL PROPERTY" means all of the Registered
    Intellectual Property owned by, or filed in the name of, Company or any of
    its subsidiaries.

        (a) Section 2.18(a) of the Company Schedule is a complete and accurate
    list of all Company Registered Intellectual Property and specifies, where
    applicable, the jurisdictions in which each such item of Company Registered
    Intellectual Property has been issued or registered and lists any
    proceedings or actions before any court or tribunal (including the United
    States Patent and Trademark Office (the "PTO") or equivalent authority
    anywhere in the world) related to any of the Company Registered Intellectual
    Property.

        (b) Section 2.18(b) of the Company Schedule is a complete and accurate
    list (by name and version number) of all products or service offerings of
    Company or any of its subsidiaries ("COMPANY PRODUCTS") that have been
    distributed or provided in the two (2) year period preceding the date hereof
    or which Company or any of its subsidiaries currently intends to distribute
    or provide in the future, including any products or service offerings under
    development.

        (c) No Company Intellectual Property or Company Product is subject to
    any proceeding or outstanding decree, order, judgment, contract, license,
    agreement, or stipulation restricting in any manner the use, transfer, or
    licensing thereof by Company or any of its subsidiaries, or which may affect
    the validity, use or enforceability of such Company Intellectual Property or
    Company Product.

        (d) Each material item of Company Registered Intellectual Property is
    valid and subsisting, all necessary registration, maintenance and renewal
    fees currently due in connection with such Company Registered Intellectual
    Property have been made and all necessary documents, recordations and
    certificates in connection with such Company Registered Intellectual
    Property have been filed with the relevant patent, copyright, trademark or
    other authorities in the United States or foreign jurisdictions, as the case
    may be, for the purposes of maintaining such Company Registered Intellectual
    Property.

        (e) Section 2.18(e) of the Company Schedule is a complete and accurate
    list of all material actions that are required to be taken by Company within
    ninety (90) days of the date hereof with respect to any of the foregoing
    Registered Intellectual Property.

        (f) Company owns and has good and exclusive title to, each material item
    of Company Intellectual Property owned by it free and clear of any lien or
    encumbrance (excluding non-exclusive licenses and related restrictions
    granted in the ordinary course). Without limiting the foregoing:
    (i) Company is the exclusive owner of all trademarks and trade names used in
    connection with the operation or conduct of the business of Company and its
    subsidiaries, including the sale, distribution or provision of any Company
    Products by Company or its subsidiaries; (ii) Company owns exclusively, and
    has good title to, all copyrighted works that are Company Products or which
    Company or any of its subsidiaries otherwise purports to own; and (iii) to
    the extent that any Patents would be infringed by any Company Products,
    Company is the exclusive owner of such Patents.

        (g) To the extent that any material technology, software or Intellectual
    Property has been developed or created independently or jointly by a third
    party for Company or any of its subsidiaries or is incorporated into any of
    the Company Products, Company has a written agreement with such third party
    with respect thereto and Company thereby either (i) has obtained ownership
    of, and is the exclusive owner of, or (ii) has obtained a perpetual,
    non-terminable license (sufficient for the conduct

                                       18
<PAGE>
    of its business as currently conducted and as proposed to be conducted) to
    all such third party's Intellectual Property in such work, material or
    invention by operation of law or by valid assignment, to the fullest extent
    it is legally possible to do so.

        (h) Neither Company nor any of its subsidiaries has transferred
    ownership of, or granted any exclusive license with respect to, any
    Intellectual Property that is material Company Intellectual Property, to any
    third party, or knowingly permitted Company's rights in such material
    Company Intellectual Property to lapse or enter the public domain.

        (i) Section 2.18(i) of the Company Schedule lists all material
    contracts, licenses and agreements to which Company or any of its
    subsidiaries is a party: (i) with respect to Company Intellectual Property
    licensed or transferred to any third party (other than end-user licenses in
    the ordinary course); or (ii) pursuant to which a third party has licensed
    or transferred any material Intellectual Property to Company.

        (j) All material contracts, licenses and agreements relating to either
    (i) Company Intellectual Property or (ii) Intellectual Property of a third
    party licensed to Company or any of its subsidiaries, are in full force and
    effect. The consummation of the transactions contemplated by this Agreement
    will neither violate nor result in the breach, modification, cancellation,
    termination or suspension of such contracts, licenses and agreements. Each
    of Company and its subsidiaries is in material compliance with, and has not
    materially breached any term of any such contracts, licenses and agreements
    and, to the knowledge of Company, all other parties to such contracts,
    licenses and agreements are in compliance with, and have not materially
    breached any term of, such contracts, licenses and agreements. Following the
    Closing Date, the Surviving Corporation will be permitted to exercise all of
    Company's rights under such contracts, licenses and agreements to the same
    extent Company and its subsidiaries would have been able to had the
    transactions contemplated by this Agreement not occurred and without the
    payment of any additional amounts or consideration other than ongoing fees,
    royalties or payments which Company would otherwise be required to pay.
    Neither this Agreement nor the transactions contemplated by this Agreement,
    including the assignment to Parent or Merger Sub by operation of law or
    otherwise of any contracts or agreements to which Company is a party, will
    result in (i) either Parent's or the Merger Sub's granting to any third
    party any right to or with respect to any material Intellectual Property
    right owned by, or licensed to, either of them, (ii) either the Parent's or
    the Merger Sub's being bound by, or subject to, any non-compete or other
    material restriction on the operation or scope of their respective
    businesses, or (iii) either the Parent's or the Merger Sub's being obligated
    to pay any royalties or other material amounts to any third party in excess
    of those payable by Company prior to the Closing.

        (k) The operation of the business of Company and its subsidiaries as
    such business currently is conducted, including (i) Company's and its
    subsidiaries' design, development, manufacture, distribution, reproduction,
    marketing or sale of the products or services of Company and its
    subsidiaries (including Company Products) and (ii) Company's use of any
    product, device or process, has not, does not and, to its knowledge, will
    not infringe or misappropriate the Intellectual Property of any third party
    or constitute unfair competition or trade practices under the laws of any
    jurisdiction.

        (l) Neither Company nor any of its subsidiaries has received notice from
    any third party that the operation of the business of Company or any of its
    subsidiaries or any act, product or service of Company or any of its
    subsidiaries, infringes or misappropriates the Intellectual Property of any
    third party or constitutes unfair competition or trade practices under the
    laws of any jurisdiction.

        (m) To the knowledge of Company, no person has or is infringing or
    misappropriating any Company Intellectual Property.

        (n) Company and each of its subsidiaries has taken reasonable steps to
    protect Company's and its subsidiaries' rights in Company's confidential
    information and trade secrets that it wishes to protect

                                       19
<PAGE>
    or any trade secrets or confidential information of third parties provided
    to Company or any of its subsidiaries, and, without limiting the foregoing,
    each of Company and its subsidiaries has and uses its best efforts to
    enforce a policy requiring each employee and contractor to execute a
    proprietary information/confidentiality agreement substantially in the form
    provided to Parent and all current and former employees and contractors of
    Company and any of its subsidiaries have executed such an agreement, except
    where the failure to do so is not reasonably expected to be material to
    Company.

        (o) All of the Company Products (i) will record, store, process,
    calculate and present calendar dates falling on and after (and if
    applicable, spans of time including) January 1, 2000, and will calculate any
    information dependent on or relating to such dates in the same manner, and
    with the same functionality, data integrity and performance, as the products
    record, store, process, calculate and present calendar dates on or before
    December 31, 1999, or calculate any information dependent on or relating to
    such dates (collectively, "YEAR 2000 COMPLIANT"), (ii) will lose no
    functionality with respect to the introduction of records containing dates
    falling on or after January 1, 2000, and (iii) will, to the knowledge of
    Company, be interoperable with other products used and distributed by Parent
    that may reasonably deliver records to Company's or any of its subsidiaries'
    products or receive records from Company's or any of its subsidiaries'
    products, or interact with Company's or any of its subsidiaries' products.
    Except as would not result in a Material Adverse Effect, all of Company's or
    its subsidiaries' Information Technology (as defined below) is Year 2000
    Compliant, and will not cause an interruption in the ongoing operations of
    Company's or any of its subsidiaries' business on or after January 1, 2000.
    For purposes of the foregoing, the term "INFORMATION TECHNOLOGY" shall mean
    and include all software, hardware, firmware, telecommunications systems,
    network systems, embedded systems and other systems, components and/or
    services (other than general utility services including gas, electric,
    telephone and postal) that are owned or used by Company or any of its
    subsidiaries in the conduct of their business, or purchased by Company or
    any of its subsidiaries from third-party suppliers.

    2.19  AGREEMENTS, CONTRACTS AND COMMITMENTS

    Neither Company 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, director, Company employee or member of Company's Board of
    Directors, other than those that are terminable by Company or any of its
    subsidiaries on no more than thirty (30) days' notice without liability or
    financial obligation to Company;

        (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;

        (c) any material agreement of indemnification or any guaranty other than
    any agreement of indemnification entered into in connection with the sale or
    license of software products in the ordinary course of business;

        (d) any material agreement, contract or commitment containing any
    covenant limiting in any respect the right of Company or any of its
    subsidiaries to engage in any line of business or to 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 by Company or any of its subsidiaries after
    the date of this Agreement of a material amount of assets not in the
    ordinary course of business or pursuant to which Company or any of its
    subsidiaries has any material ownership interest in any corporation,
    partnership, joint venture or other business enterprise other than Company's
    subsidiaries;

                                       20
<PAGE>
        (f) any dealer, distributor, joint marketing or development agreement
    currently in force under which Company or any of its subsidiaries have
    continuing material obligations to jointly market any product, technology or
    service or any material agreement pursuant to which Company or any of its
    subsidiaries have continuing material obligations to jointly develop any
    intellectual property that will not be owned, in whole or in part, by
    Company or any of its subsidiaries;

        (g) any agreement, contract or commitment currently in force to provide
    source code to any third party for any product or technology that is
    material to Company and its subsidiaries taken as a whole;

        (h) any agreement, contract or commitment currently in force to license
    any third party to manufacture or reproduce any Company product, service or
    technology or any agreement, contract or commitment currently in force to
    sell or distribute any Company products, service or technology except
    agreements with distributors or sales representative in the normal course of
    business cancelable without penalty upon notice of ninety (90) days or less
    and substantially in the form previously provided to Parent;

        (i) any mortgages, indentures, guarantees, loans or credit agreements,
    security agreements or other agreements or instruments relating to the
    borrowing of money or extension of credit;

        (j) any material settlement agreement entered into within five
    (5) years prior to the date of this Agreement; or

        (k) any other agreement, contract or commitment that has a value of
    $500,000 or more individually.

    Neither Company nor any of its subsidiaries, nor to Company's knowledge any
other party to a Company Contract (as defined below), is in breach, violation or
default under, and neither Company nor any of its subsidiaries has received
written 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 Company or any of its subsidiaries is a party or by which it is bound
that are required to be disclosed in the Company Schedule (any such agreement,
contract or commitment, a "COMPANY CONTRACT") in such a manner as would permit
any other party to cancel or terminate any such Company Contract, or would
permit any other party to seek material damages or other remedies (for any or
all of such breaches, violations or defaults, in the aggregate).

    2.20  COMPANY RIGHTS PLAN

    The Company Rights Plan has been amended to (i) render the Company Rights
Plan inapplicable to the Merger and the other transactions contemplated by this
Agreement, the Stock Option Agreement, the Company Affiliate Agreements and the
Company Voting Agreements, (ii) ensure that (x) neither Parent nor Merger Sub,
nor any of their affiliates shall be deemed to have become an Acquiring Person
(as defined in the Company Rights Plan) pursuant to the Company Rights Plan
solely by virtue of the execution of this Agreement, the Stock Option Agreement,
the Company Affiliate Agreements and the Company Voting Agreements of the
consummation of the transactions contemplated hereby or thereby and (y) a
Distribution Date, a Shares Acquisition Date (as such terms are defined in the
Company Rights Plan) or similar event does not occur by reason of the execution
of this Agreement, the Company Stock Option Agreement, the Company Affiliate
Agreements and the Company Voting Agreements, the consummation of the Merger, or
the consummation of the other transactions, contemplated hereby and thereby,
(iii) provide that the exercise of rights under the Company Rights Plan shall
expire immediately prior to the Effective Time and (iv) that such amendment may
not be further amended by Company without the prior consent of Parent in its
sole discretion.

                                       21
<PAGE>
    2.21  INSURANCE

    Company maintains insurance policies and fidelity bonds covering the assets,
business, equipment, properties, operations, employees, officers and directors
of Company and its subsidiaries (collectively, the "INSURANCE POLICIES") which
are of the type and in amounts customarily carried by persons conducting
businesses similar to those of Company and its subsidiaries. There is no
material claim by Company or any of its subsidiaries pending under any of the
material Insurance Policies as to which coverage has been questioned, denied or
disputed by the underwriters of such policies or bonds.

    2.22  OPINION OF FINANCIAL ADVISOR

    Company has been advised in writing by its financial advisor, S.G. Cowen
that in its opinion, as of the date of this Agreement, the Exchange Ratio is
fair to the stockholders of Company from a financial point of view.

    2.23  BOARD APPROVAL

    The Board of Directors of Company has, as of the date of this Agreement
unanimously (i) approved, subject to stockholder approval, this Agreement, the
Stock Option Agreement and the transactions contemplated hereby and thereby,
(ii) determined that the Merger is in the best interests of the stockholders of
Company and is on terms that are fair to such stockholders and
(iii) recommended that the stockholders of Company approve this Agreement and
the Merger.

    2.24  VOTE REQUIRED

    The affirmative vote of a majority of the votes that holders of the
outstanding shares of Company Common Stock are entitled to vote with respect to
the Merger is the only vote of the holders of any class or series of Company's
capital stock necessary to approve this Agreement and the transactions
contemplated hereby.

    2.25  POOLING OF INTERESTS

    To its knowledge, and based on consultation with its independent
accountants, neither Company nor any of its directors, officers or affiliates
has taken any action which would interfere with (i) Parent's ability to account
for the Merger as a pooling of interests or (ii) Parent's, Surviving
Corporation's or Company's ability to continue to account for as a pooling of
interests any past acquisition by Company currently accounted for as a pooling
of interests.

                                  ARTICLE III
            REPRESENTATIONS AND WARRANTIES OF PARENT AND MERGER SUB

    Parent and Merger Sub jointly and severally represent and warrant to
Company, subject to such exceptions as are specifically disclosed in writing in
the disclosure letter and referencing a specific representation supplied by
Parent to Company dated as of the date hereof and certified by a duly authorized
officer of Parent (the "PARENT SCHEDULE"), as follows:

    3.1  ORGANIZATION AND QUALIFICATION; SUBSIDIARIES

    Each of Parent and its subsidiaries is a corporation duly organized, validly
existing and in good standing under the laws of the jurisdiction of its
incorporation and has the requisite corporate power and authority to own, lease
and operate its assets and properties and to carry on its business as it is now
being conducted, except where the failure to do so would not, individually or in
the aggregate, have a Material Adverse Effect on Parent. Each of Parent and its
subsidiaries is in possession of all Approvals necessary to own, lease and
operate the properties it purports to own, operate or lease and to carry on its
business as it is now being conducted, except where the failure to have such
Approvals would not, individually or in the aggregate, have a Material Adverse
Effect on Parent. Each of Parent and its subsidiaries is duly qualified

                                       22
<PAGE>
or licensed as a foreign corporation 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 for such failures to be so duly qualified or
licensed and in good standing that would not, either individually or in the
aggregate, have a Material Adverse Effect on Parent.

    3.2  CERTIFICATE OF INCORPORATION AND BYLAWS

    Parent has previously furnished to Company a complete and correct copy of
its Certificate of Incorporation and Bylaws as amended to date (together, the
"PARENT CHARTER DOCUMENTS"). Such Parent Charter Documents and equivalent
organizational documents of each of its subsidiaries are in full force and
effect. Parent is not in violation of any of the provisions of the Parent
Charter Documents, and no subsidiary of Parent is in violation of any of its
equivalent organizational documents.

    3.3  CAPITALIZATION

    The authorized capital stock of Parent consists of (i) 500,000,000 shares of
Parent Common Stock, par value $0.01 per share, and (ii) 5,000,000 shares of
Preferred Stock, par value $0.01 per share ("PARENT PREFERRED STOCK"), 440,000
of which have been designated as Series A-1 Preferred Stock and 80,000 of which
have been designated as Series B Preferred Stock. At the close of business on
October 31, 1999, (i) 201,346,149 shares of Parent Common Stock were issued and
outstanding, (ii) 253,365 shares of Parent Common Stock were held in treasury by
Parent or by subsidiaries of Parent, (iii) 1,463,379 shares of Parent Common
Stock were reserved for future issuance pursuant to Parent's employee stock
purchase plan, (iv) 7,237,949 shares of Parent Common Stock were reserved for
issuance upon the exercise of outstanding options ("PARENT OPTIONS") to purchase
Parent Common Stock. As of the date hereof, no shares of Series A-1 Preferred
Stock and 7,000 shares of Series B Preferred Stock were issued or outstanding. A
warrant to purchase an aggregate of 1,938,947 shares of Parent Common Stock,
associated with the exercise of Series B Preferred Stock, were outstanding as of
the date hereof. The authorized capital stock of Merger Sub consists of 1,000
shares of common stock, par value $0.001 per share, all of which, as of the date
hereof, are issued and outstanding. All of the outstanding shares of Parent's
and Merger Sub's respective capital stock have been duly authorized and validly
issued and are fully paid and nonassessable. All shares of Parent Common Stock
subject to issuance as aforesaid, upon issuance on the terms and conditions
specified in the instruments pursuant to which they are issuable, shall, and the
shares of Parent Common Stock to be issued pursuant to the Merger will be, duly
authorized, validly issued, fully paid and nonassessable. All of the outstanding
shares of capital stock (other than directors' qualifying shares) of each of
Parent's subsidiaries is duly authorized, validly issued, fully paid and
nonassessable and all such shares (other than directors' qualifying shares) are
owned by Parent or another subsidiary free and clear of all security interests,
liens, claims, pledges, agreements, limitations in Parent's voting rights,
charges or other encumbrances of any nature whatsoever.

    3.4  AUTHORITY RELATIVE TO THIS AGREEMENT

    Each of Parent and Merger Sub has all necessary corporate power and
authority to execute and deliver this Agreement and the Stock Option Agreement,
and to perform its obligations hereunder and thereunder and to consummate the
transactions contemplated hereby and thereby. The execution and delivery of this
Agreement and the Stock Option Agreement by Parent and Merger Sub and the
consummation by Parent and Merger Sub of the transactions contemplated hereby
and thereby have been duly and validly authorized by all necessary corporate
action on the part of Parent and Merger Sub, and no other corporate proceedings
on the part of Parent or Merger Sub are necessary to authorize this Agreement
and the Stock Option Agreement, or to consummate the transactions so
contemplated. This Agreement and the Stock Option Agreement have been duly and
validly executed and delivered by Parent and Merger Sub and, assuming the due
authorization, execution and delivery by Company, constitute legal and binding
obligations of Parent and Merger Sub, enforceable against Parent and Merger Sub
in accordance with their respective terms.

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<PAGE>
    3.5  NO CONFLICT; REQUIRED FILINGS AND CONSENTS

        (a) The execution and delivery of this Agreement by Parent and Merger
    Sub and the Stock Option Agreement by Parent do not, and the performance of
    this Agreement by Parent and Merger Sub and the Stock Option Agreement by
    Parent shall not, (i) conflict with or violate the Certificate of
    Incorporation, Bylaws or equivalent organizational documents of Parent or
    any of its subsidiaries, (ii) subject to compliance with the requirements
    set forth in Section 3.5(b) below, conflict with or violate any law, rule,
    regulation, order, judgment or decree applicable to Parent or any of its
    subsidiaries or by which it or their respective properties are 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 Parent's or any such subsidiary'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
    Parent 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 Parent or any of its subsidiaries
    is a party or by which Parent or any of its subsidiaries or its or any of
    their respective properties are bound or affected, except to the extent such
    conflict, violation, breach, default, impairment or other effect could not
    in the case of clauses (ii) or (iii) individually or in the aggregate,
    reasonably be expected to have a Material Adverse Effect on Parent.

        (b) The execution and delivery of this Agreement by Parent and Merger
    Sub and the Stock Option Agreement by Parent do not, and the performance of
    this Agreement by Parent and Merger Sub shall not, require any consent,
    approval, authorization or permit of, or filing with or notification to, any
    Governmental Entity except (i) for applicable requirements, if any, of the
    Securities Act, the Exchange Act, Blue Sky Laws, the pre-merger notification
    requirements of the HSR Act and of foreign governmental entities and the
    rules and regulations thereunder, the rules and regulations of Nasdaq, and
    the filing and recordation of the Certificate of Merger as required by
    Delaware Law and (ii) where the failure to obtain such consents, approvals,
    authorizations or permits, or to make such filings or notifications,
    (x) would not prevent consummation of the Merger or otherwise prevent Parent
    or Merger Sub from performing their respective obligations under this
    Agreement or (y) could not, individually or in the aggregate, reasonably be
    expected to have a Material Adverse Effect on Parent.

    3.6  SEC FILINGS; FINANCIAL STATEMENTS

        (a) Parent has made available to Company a correct and complete copy of
    each report, schedule, registration statement and definitive proxy statement
    filed by Parent with the SEC on or after September 30, 1997 (the "PARENT SEC
    REPORTS"), which are all the forms, reports and documents required to be
    filed by Parent with the SEC since September 30, 1997. The Parent SEC
    Reports (A) were prepared in accordance with the requirements of the
    Securities Act or the Exchange Act, as the case may be, and (B) 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 light of the circumstances under which they were made, not
    misleading. None of Parent's subsidiaries is required to file any reports or
    other documents with the SEC.

        (b) Each set of consolidated financial statements (including, in each
    case, any related notes thereto) contained in the Parent SEC Reports 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 statements, do not contain footnotes as permitted by
    Form 10-Q of the Exchange Act) and each fairly presents in all material
    respects the consolidated financial position of Parent and its subsidiaries
    at the respective dates thereof and the consolidated results of its
    operations

                                       24
<PAGE>
    and cash flows for the periods indicated, except that the unaudited interim
    financial statements were or are subject to normal adjustments which were
    not or are not expected to be material in amount.

        (c) Since the date of the balance sheet included in Parent's report on
    Form 10-Q filed on November 15, 1999, and until the date hereof, there has
    not occurred any Material Adverse Effect on Parent.

    3.7  REGISTRATION STATEMENT; PROXY STATEMENT

    None of the information supplied or to be supplied by Parent for inclusion
or incorporation by reference in (i) the S-4 will, at the time the S-4 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, in light of the circumstances
under which they are made, not misleading; and (ii) the Proxy
Statement/Prospectus will, at the dates mailed to the stockholders of Company
and Parent, at the times of the Stockholders' Meetings and as of 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
misleading. The S-4 will comply as to form in all material respects with the
provisions of the Securities Act and the rules and regulations promulgated by
the SEC thereunder. Notwithstanding the foregoing, Parent makes no
representation or warranty with respect to any information supplied by Company
which is contained in any of the foregoing documents.

    3.8  COMPLIANCE; PERMITS

        (a) Neither Parent nor any of its subsidiaries is in conflict with, or
    in default or violation of, (i) any law, rule, regulation, order, judgment
    or decree applicable to Parent or any of its subsidiaries or by which its 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 Parent
    or any of its subsidiaries is a party or by which Parent or any of its
    subsidiaries or its or any of their respective properties is bound or
    affected, except for any conflicts, defaults or violations that
    (individually or in the aggregate) would not cause Parent to lose any
    material benefit or incur any material liability. Except as disclosed in the
    Parent SEC Reports, no investigation or review by any governmental or
    regulatory body or authority is pending or, to the knowledge of Parent,
    threatened against Parent or its subsidiaries, nor has any governmental or
    regulatory body or authority indicated to Parent an intention to conduct the
    same, other than, in each such case, those the outcome of which could not,
    individually or in the aggregate, reasonably be expected to have the effect
    of prohibiting or materially impairing any business practice of Parent or
    any of its subsidiaries, any acquisition of material property by Parent or
    any of its subsidiaries or the conduct of business by Parent or any of its
    subsidiaries.

        (b) Parent and its subsidiaries hold all permits, licenses, variances,
    exemptions, orders and approvals from governmental authorities which are
    material to operation of the business of Parent and its subsidiaries taken
    as a whole (collectively, the "PARENT PERMITS"). Parent and its subsidiaries
    are in compliance in all material respects with the terms of the Parent
    Permits.

    3.9  NO UNDISCLOSED LIABILITIES

    Neither Parent 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 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 Parent
and its subsidiaries taken as a whole, except (i) liabilities provided for in
Parent's balance sheet as of September 30, 1999 or (ii) liabilities incurred
since September 30, 1999 in the ordinary course of business, none of which is
material to the business, results of operations or financial condition of Parent
and its subsidiaries, taken as a whole.

                                       25
<PAGE>
    3.10  ABSENCE OF LITIGATION

    Except as disclosed in Parent SEC Reports, there are no claims, actions,
suits or proceedings pending or, to the knowledge of Parent, threatened (or, to
the knowledge of Parent, any governmental or regulatory investigation pending or
threatened) against Parent or any of its subsidiaries or any properties or
rights of Parent or any of its subsidiaries, before any court, arbitrator or
administrative, governmental or regulatory authority or body, domestic or
foreign.

    3.11  BROKERS

    Other than fees owed to Parent's financial advisor, Merrill Lynch & Co.,
Parent has not incurred, nor will it incur, directly or indirectly, any
liability for brokerage or finders fees or agent's commissions or any similar
charges in connection with this Agreement or any transaction contemplated
hereby.

    3.12  OPINION OF FINANCIAL ADVISOR

    Parent has been advised in writing by its financial advisor, Merrill
Lynch & Co., that in its opinion, as of the date of this Agreement, the Exchange
Ratio is fair, from a financial point of view, to Parent.

    3.13  BOARD APPROVAL

    The Board of Directors of Parent has, as of the date of this Agreement
unanimously (i) approved, subject to stockholder approval, this Agreement, the
Stock Option Agreement and the transactions contemplated hereby and thereby,
(ii) determined that the Merger is in the best interests of the stockholders of
Parent and is on terms that are fair to such stockholders and (iii) recommended
that the stockholders of Parent approve the issuance of Parent Common Stock in
connection with the Merger.

    3.14  VOTE REQUIRED

    The affirmative vote of a majority of the votes that holders of the
outstanding shares of Parent Common Stock are entitled to vote with respect to
the Merger is the only vote of the holders of any class or series of Parent's
capital stock necessary to approve the issuance of Parent Common Stock in
connection with the Merger.

    3.15  POOLING OF INTERESTS

    To its knowledge, and based on consultation with its independent
accountants, neither Parent nor any of its directors, officers or affiliates has
taken any action which would interfere with Parent's ability to account for the
Merger as a pooling of interests.

    3.16  INTERIM OPERATIONS OF SUB

    Merger Sub was formed solely for the purpose of engaging in the transactions
contemplated hereby, has engaged in no other business activities and has
conducted its operations only as contemplated hereby.

                                   ARTICLE IV
                      CONDUCT PRIOR TO THE EFFECTIVE TIME

    4.1  CONDUCT OF BUSINESS BY COMPANY

    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, Company and each of its subsidiaries shall, except to the extent
that Parent shall otherwise consent in writing, carry on its business, in the
usual, regular and ordinary course, in substantially the same manner as
heretofore conducted and in compliance with all applicable laws and regulations,
pay its debts and taxes when due subject to good faith disputes over such debts
or taxes, pay or perform other material obligations when due, and use its
commercially reasonable efforts consistent with past practices and policies to
(i) preserve intact its present business

                                       26
<PAGE>
organization, (ii) keep available the services of its present officers and
employees and (iii) preserve its relationships with customers, suppliers,
distributors, licensors, licensees, and others with which it has significant
business dealings.

    In addition, except as permitted by the terms of this Agreement, and except
as provided in Section 4.1 of the Company Schedule, without the prior written
consent of Parent, 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, Company shall not do any of the following and
shall not permit its subsidiaries to do any of the following:

        (a) Other than pursuant to terms of agreements or policies in existence
    as of the date of this Agreement as they apply to the transactions
    contemplated by this Agreement, 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,
    director or other 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 pursuant to written agreements outstanding, or policies existing, on
    the date hereof and as previously disclosed in writing or made available to
    Parent, or adopt any new severance plan, or amend or modify or alter in any
    manner any severance plan, agreement or arrangement existing on the date
    hereof;

        (c) Transfer or license to any person or entity or otherwise extend,
    amend or modify any rights to the Company Intellectual Property, or enter
    into grants to transfer or license to any person future patent rights, other
    than in the ordinary course of business consistent with past practices,
    provided that in no event shall Company license on an exclusive basis or
    sell any Company Intellectual Property;

        (d) Declare, set aside 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) Except as set forth in Section 4.1(h) of the Company Schedule with
    respect to mergers among Company and any of its direct or indirect
    subsidiaries, acquire or purchase, redeem or otherwise acquire, directly or
    indirectly, any shares of capital stock of Company or its subsidiaries,
    except repurchases of unvested shares at cost in connection with the
    termination of the employment relationship with any employee pursuant to
    stock option or purchase agreements in effect on the date hereof;

        (f) Issue, deliver, sell, authorize, pledge or otherwise encumber or
    propose any of the foregoing with respect to, 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 (x) the issuance delivery
    and/or sale of (i) shares of Company Common Stock pursuant to the exercise
    of the Warrants or stock options outstanding as of the date of this
    Agreement, and (ii) shares of Company Common Stock issuable to participants
    in the ESPP consistent with the terms thereof and (y) the granting of stock
    options to employees (excluding directors and executive officers), in the
    ordinary course of business and consistent with past practices, in an amount
    not to exceed options to purchase (and the issuance of Company Common Stock
    upon exercise thereof) 600,000 shares in the aggregate;

        (g) Cause, permit or propose any amendments to the Company Charter
    Documents (or similar governing instruments of any of its subsidiaries);

                                       27
<PAGE>
        (h) Except as set forth in Section 4.1(h) of the Company Schedule with
    respect to mergers among Company and any of its direct or indirect
    subsidiaries, acquire or agree to acquire by merging or consolidating with,
    or by purchasing any equity interest in or a portion of the assets of, or by
    any other manner, any business or any corporation, partnership, association
    or other business organization or division thereof, or otherwise acquire or
    agree to enter into any joint ventures, strategic partnerships or alliances;

        (i) Sell, lease, license, encumber or otherwise dispose of any
    properties or assets except sales of inventory in the ordinary course of
    business consistent with past practice, except for the sale, lease or
    disposition (other than through licensing) of property or assets which are
    not material, individually or in the aggregate, to the business of Company
    and its subsidiaries;

        (j) Incur any indebtedness for borrowed money or guarantee any such
    indebtedness of another person, issue or sell any debt securities or
    options, warrants, calls or other rights to acquire any debt securities of
    Company, enter into any "keep well" or other agreement to maintain any
    financial statement condition or enter into any arrangement having the
    economic effect of any of the foregoing other than in connection with the
    financing of ordinary course trade payables consistent with past practice;

        (k) Adopt or amend any employee benefit plan, policy or arrangement, any
    employee stock purchase or employee stock option plan, or enter into any
    employment contract or collective bargaining agreement (other than offer
    letters and letter agreements entered into in the ordinary course of
    business consistent with past practice with employees who are terminable "at
    will"), pay any special bonus or special remuneration to any director or
    employee, or increase the salaries or wage rates or fringe benefits
    (including rights to severance or indemnification) of its directors,
    officers, employees or consultants;

        (l) (i) pay, discharge, settle or satisfy any claims, liabilities or
    obligations (absolute, accrued, asserted or unasserted, contingent or
    otherwise), or litigation (whether or not commenced prior to the date of
    this Agreement) other than the payment, discharge, settlement or
    satisfaction, in the ordinary course of business consistent with past
    practice or in accordance with their terms, or liabilities recognized or
    disclosed in the most recent consolidated financial statements (or the notes
    thereto) of Company included in the Company SEC Reports or incurred since
    the date of such financial statements, or (ii) waive the benefits of, agree
    to modify in any manner, terminate, release any person from or knowingly
    fail to enforce any confidentiality or similar agreement to which Company or
    any of its subsidiaries is a party or of which Company or any of its
    subsidiaries is a beneficiary;

        (m) Make any individual or series of related payments outside of the
    ordinary course of business in excess of $100,000;

        (n) Except as set forth in Section 4.1(h) of the Company Schedule or
    except in the ordinary course of business consistent with past practice,
    modify, amend or terminate any material contract or agreement, to which
    Company or any subsidiary thereof is a party or waive, delay the exercise
    of, release or assign any material rights or claims thereunder;

        (o) Enter into, renew or materially modify any contracts, agreements, or
    obligations relating to the distribution, sale, license or marketing by
    third parties of Company's products or products licensed by Company other
    than new (or material modifications of existing) non-exclusive contracts,
    agreements or obligations entered into in the usual, regular and ordinary
    course, in substantially the same manner as heretofor conducted, and
    renewals of existing nonexclusive contracts, agreements or obligations;

        (p) Except as required by GAAP, revalue any of its assets or make any
    change in accounting methods, principles or practices;

                                       28
<PAGE>
        (q) Incur or enter into any agreement, contract or commitment requiring
    Company or any of its subsidiaries to pay in excess of $250,000;

        (r) Engage in any action that could reasonably be expected to (i) cause
    the Merger to fail to qualify as a "reorganization" under Section 368(a) of
    the Code or (ii) interfere with Parent's ability to account for the Merger
    as a pooling of interests, whether or not (in each case) otherwise permitted
    by the provisions of this Article IV;

        (s) Settle any litigation;

        (t) Make any tax election that, individually or in the aggregate, is
    reasonably likely to adversely affect in any material respect the tax
    liability or tax attributes of Company or any of its subsidiaries or settle
    or compromise any material income tax liability;

        (u) Agree in writing or otherwise to take any of the actions described
    in Section 4.1(a) through (t) above.

    4.2  CONDUCT OF BUSINESS BY PARENT

    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, except as permitted by the terms of this Agreement and the Stock
Option Agreement and except as provided in Section 4.2 of the Parent Schedule,
without the prior written consent of Company, Parent shall not

        (a) Engage in any action that could reasonably be expected to (i) cause
    the Merger to fail to qualify as a "reorganization" under Section 368(a) of
    the Code or (ii) interfere with Parent's ability to account for the Merger
    as a pooling of interests;

        (b) Declare, set aside or pay any cash dividends on or make any other
    cash distributions in respect of any capital stock; or

        (c) Take any action that would reasonably be likely to materially delay
    the Merger.

                                   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,
    Company and Parent will prepare, and file with the SEC, the Proxy
    Statement/Prospectus, and Parent will prepare and file with the SEC the S-4
    in which the Proxy Statement/Prospectus will be included as a prospectus.
    Each of Parent and Company shall provide promptly to the other such
    information concerning its business and financial statements and affairs as,
    in the reasonable judgment of the providing party or its counsel, may be
    required or appropriate for inclusion in the Proxy Statement/Prospectus and
    the S-4, or in any amendments or supplements thereto, and to cause its
    counsel and auditors to cooperate with the other's counsel and auditors in
    the preparation of the Proxy Statement/Prospectus and the S-4. Each of
    Company and Parent will respond to any comments of the SEC, and will use its
    respective commercially reasonable efforts to have the S-4 declared
    effective under the Securities Act as promptly as practicable after such
    filing, and Parent and Company will cause the Proxy Statement/ Prospectus to
    be mailed to its respective stockholders at the earliest practicable time
    after the S-4 is declared effective by the SEC. As promptly as practicable
    after the date of this Agreement, each of Company and Parent will prepare
    and file any other filings required to be filed by it under the Exchange
    Act, the Securities Act or any other Federal, foreign or Blue Sky or related
    laws relating to the Merger and the transactions contemplated by this
    Agreement (the "OTHER FILINGS"). Each of Company and Parent will notify the
    other promptly upon the receipt of any comments from the SEC

                                       29
<PAGE>
    or its staff or any other government officials and of any request by the SEC
    or its staff or any other government officials for amendments or supplements
    to the S-4, the Proxy Statement/Prospectus 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 S-4, the Proxy Statement/ Prospectus, the
    Merger or any Other Filing. Each of Company and Parent will cause all
    documents that it is responsible for filing with the SEC or other regulatory
    authorities under this Section 5.1(a) to 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/Prospectus,
    the S-4 or any Other Filing, Company or Parent, 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 Company, such amendment or supplement.

        (b) The Proxy Statement/Prospectus will include the unanimous
    recommendations of (i) the Board of Directors of Parent in favor of the
    issuance of the shares of Parent Common Stock in connection with the Merger
    and (ii) subject to Section 5.2, the Board of Directors of Company in favor
    of adoption and approval of this Agreement and approval of the Merger.

    5.2  MEETING OF COMPANY STOCKHOLDERS

        (a) Promptly after the date hereof, Company will take all action
    necessary in accordance with Delaware Law and the Company Charter Documents
    to convene the Company 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 S-4, for
    the purpose of voting upon this Agreement and the Merger. Subject to
    Section 5.2(c), Company will use its commercially reasonable 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 Nasdaq or Delaware Law to obtain such
    approvals. Notwithstanding anything to the contrary contained in this
    Agreement, Company may adjourn or postpone the Company Stockholders' Meeting
    to the extent necessary to ensure that any necessary supplement or amendment
    to the Prospectus/Proxy Statement is provided to Company's stockholders in
    advance of a vote on the Merger and this Agreement or, if as of the time for
    which the Company Stockholders' Meeting is originally scheduled (as set
    forth in the Prospectus/Proxy Statement) there are insufficient shares of
    Company Common Stock represented (either in person or by proxy) to
    constitute a quorum necessary to conduct the business of the Company
    Stockholders' Meeting. Company shall ensure that the Company Stockholders'
    Meeting is called, noticed, convened and conducted, and that all proxies
    solicited by Company in connection with the Company Stockholders' Meeting
    are solicited, in compliance with Delaware Law, the Company Charter
    Documents, the rules of Nasdaq and all other applicable legal requirements.
    Company's obligation to call, give notice of, convene and conduct the
    Company Stockholders' Meeting in accordance with this Section 5.2(a) shall
    not be limited to or otherwise affected by the commencement, disclosure,
    announcement or submission to Company of any Acquisition Proposal.

        (b) Subject to Section 5.2(c): (i) the Board of Directors of Company
    shall unanimously recommend that Company's stockholders vote in favor of and
    adopt and approve this Agreement and the Merger at the Company Stockholders'
    Meeting; (ii) the Prospectus/Proxy Statement shall include a statement to
    the effect that the Board of Directors of Company has unanimously
    recommended that Company's stockholders vote in favor of and adopt and
    approve this Agreement and the Merger at the Company Stockholders' Meeting;
    and (iii) neither the Board of Directors of Company nor any committee
    thereof shall withdraw, amend or modify, or propose or resolve to withdraw,
    amend or modify in a manner adverse to Parent, the unanimous recommendation
    of the Board of Directors of Company that Company's stockholders vote in
    favor of and adopt and approve this Agreement and

                                       30
<PAGE>
    the Merger. For purposes of this Agreement, said recommendation of the Board
    of Directors shall be deemed to have been modified in a manner adverse to
    Parent if said recommendation shall no longer be unanimous.

        (c) Nothing in this Agreement shall prevent the Board of Directors of
    Company from withholding, withdrawing, amending or modifying its unanimous
    recommendation in favor of the Merger if (i) a Superior Offer (as defined
    below) is made to Company and is not withdrawn, (ii) neither Company nor any
    of its representatives shall have violated any of the restrictions set forth
    in Section 5.4, and (iii) the Board of Directors of Company concludes in
    good faith, after consultation with its outside counsel, that, in light of
    such Superior Offer, the withholding, withdrawal, amendment or modification
    of such recommendation is required in order for the Board of Directors of
    Company to comply with its fiduciary obligations to Company's stockholders
    under applicable law. Nothing contained in this Section 5.2 shall limit
    Company's obligation to convene and conduct the Company Stockholders'
    Meeting (regardless of whether the unanimous recommendation of the Board of
    Directors of Company shall have been withdrawn, amended or modified). For
    purposes of this Agreement, "SUPERIOR OFFER" shall mean an unsolicited, bona
    fide written offer made by a third party to consummate any of the following
    transactions: (i) a merger, consolidation, business combination,
    recapitalization, liquidation, dissolution or similar transaction involving
    Company pursuant to which the stockholders of Company immediately preceding
    such transaction hold less than 51% of the equity interest in the surviving
    or resulting entity of such transaction; (ii) a sale or other disposition by
    Company of assets (excluding inventory and used equipment sold in the
    ordinary course of business) representing in excess of 51% of the fair
    market value of Company's business immediately prior to such sale, or
    (iii) the acquisition by any person or group (including by way of a tender
    offer or an exchange offer or issuance by Company), directly or indirectly,
    of beneficial ownership or a right to acquire beneficial ownership of shares
    representing in excess of 51% of the voting power of the then outstanding
    shares of capital stock of Company, in each case on terms that the Board of
    Directors of Company determines, in its reasonable judgment (based on
    written advice of a financial advisor of nationally recognized reputation)
    to be more favorable to Company stockholders from a financial point of view
    than the terms of the Merger.

    5.3  CONFIDENTIALITY; ACCESS TO INFORMATION

        (a) The parties acknowledge that Company and Parent have previously
    executed a Mutual Nondisclosure Agreement, dated as of September 29, 1999
    (the "CONFIDENTIALITY AGREEMENT"), which Confidentiality Agreement will
    continue in full force and effect in accordance with its terms.

        (b)  ACCESS TO INFORMATION.  Each Party will afford the other Party its
    accountants, counsel and other representatives reasonable access during
    normal business hours, upon reasonable notice, 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 such requesting Party may reasonably request. No
    information or knowledge obtained by any Party 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) From and after the date of this Agreement until the Effective Time
    or termination of this Agreement pursuant to Article VII, Company and its
    subsidiaries will not, nor will they authorize or permit any of their
    respective officers, directors, affiliates or employees or any investment
    banker, attorney or other advisor or representative retained by any of them
    to, directly or indirectly (i) solicit, initiate, encourage or induce the
    making, submission or announcement of any Acquisition Proposal (as defined
    below), (ii) participate in any discussions or negotiations regarding, or
    furnish to any person any non-public information with respect to, or take
    any other action to facilitate any inquiries

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    or the making of any proposal that constitutes or may reasonably be expected
    to lead to, any Acquisition Proposal, (iii) engage in discussions with any
    person with respect to any Acquisition Proposal, (iv) subject to
    Section 5.2(c), approve, endorse or recommend any Acquisition Proposal or
    (v) enter into any letter of intent or similar document or any contract,
    agreement or commitment contemplating or otherwise relating to any
    Acquisition Transaction (as defined below); PROVIDED, HOWEVER, that this
    Section 5.4(a) shall not prohibit Company from furnishing nonpublic
    information regarding Company and its subsidiaries to, entering into a
    confidentiality agreement with or entering into discussions with, any person
    or group in response to a Superior Offer submitted by such person or group
    (and not withdrawn) if (1) neither Company nor any representative of Company
    and its subsidiaries shall have violated any of the restrictions set forth
    in this Section 5.4, (2) the Board of Directors of Company concludes in good
    faith, after consultation with its outside legal counsel, that such action
    is required in order for the Board of Directors of Company to comply with
    its fiduciary obligations to Company's stockholders under applicable law,
    (3) (x) at least five days prior to furnishing any such nonpublic
    information to, or entering into discussions or negotiations with, such
    person or group, Company gives Parent written notice of the identity of such
    person or group and of Company's intention to furnish nonpublic information
    to, or enter into discussions or negotiations with, such person or group and
    (y) Company receives from such person or group an executed confidentiality
    agreement containing customary limitations on the use and disclosure of all
    nonpublic written and oral information furnished to such person or group by
    or on behalf of Company, and (4) contemporaneously with furnishing any such
    nonpublic information to such person or group, Company furnishes such
    nonpublic information to Parent (to the extent such nonpublic information
    has not been previously furnished by Company to Parent). Company and its
    subsidiaries will immediately cease any and all existing activities,
    discussions or negotiations with any parties conducted heretofore with
    respect to any Acquisition Proposal. Without limiting the foregoing, it is
    understood that any violation of the restrictions set forth in the preceding
    two sentences by any officer or director of Company or any of its
    subsidiaries or any investment banker, attorney or other advisor or
    representative of Company or any of its subsidiaries shall be deemed to be a
    breach of this Section 5.4 by Company. In addition to the foregoing, Company
    shall (i) provide Parent with at least forty-eight (48) hours prior notice
    (or such lesser prior notice as provided to the members of Company's Board
    of Directors but in no event less than eight hours) of any meeting of
    Company's Board of Directors at which Company's Board of Directors is
    reasonably expected to consider a Superior Offer and (ii) provide Parent
    with at least five (5) business days prior written notice (or such lesser
    prior notice as provided to the members of Company's Board of Directors but
    in no event less than 24 hours) of a meeting of Company's Board of Directors
    at which Company's Board of Directors is reasonably expected to recommend a
    Superior Offer to its stockholders.

        For purposes of this Agreement, "ACQUISITION PROPOSAL" shall mean any
    offer or proposal (other than an offer or proposal by Parent) relating to
    any Acquisition Transaction. For the purposes of this Agreement,
    "ACQUISITION TRANSACTION" shall mean any transaction or series of related
    transactions other than the transactions contemplated by this Agreement
    involving: (A) any acquisition or purchase from Company by any person or
    "group" (as defined under Section 13(d) of the Exchange Act and the rules
    and regulations thereunder) of more than a 10% interest in the total
    outstanding voting securities of Company or any of its subsidiaries or any
    tender offer or exchange offer that if consummated would result in any
    person or "group" (as defined under Section 13(d) of the Exchange Act and
    the rules and regulations thereunder) beneficially owning 10% or more of the
    total outstanding voting securities of Company or any of its subsidiaries or
    any merger, consolidation, business combination or similar transaction
    involving Company pursuant to which the stockholders of Company immediately
    preceding such transaction hold less than 90% of the equity interests in the
    surviving or resulting entity of such transaction; (B) any sale, lease
    (other than in the ordinary course of business), exchange, transfer, license
    (other than in the ordinary course of business), acquisition or

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<PAGE>
    disposition of more than 10% of the assets of Company; or (C) any
    liquidation or dissolution of Company.

        (b) In addition to the obligations of Company set forth in
    paragraph (a) of this Section 5.4, Company as promptly as practicable shall
    advise Parent orally and in writing of any request received by Company for
    non-public information which Company reasonably believes would lead to an
    Acquisition Proposal or of any Acquisition Proposal, or any inquiry received
    by Company with respect to or which Company reasonably should believe would
    lead to any Acquisition Proposal, the material terms and conditions of such
    request, Acquisition Proposal or inquiry, and the identity of the person or
    group making any such request, Acquisition Proposal or inquiry. Company will
    keep Parent informed in all material respects of the status and details
    (including material amendments or proposed amendments) of any such request,
    Acquisition Proposal or inquiry.

    5.5  PUBLIC DISCLOSURE

        Parent and Company 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. The
    parties have agreed to the text of the joint press release announcing the
    signing of this Agreement.

    5.6  REASONABLE EFFORTS; NOTIFICATION

        (a) Upon the terms and subject to the conditions set forth in this
    Agreement, each of the parties agrees to use all reasonable efforts to take,
    or cause to be taken, all actions, and to do, or cause to be done, and to
    assist and cooperate with the other parties in doing, all things necessary,
    proper or advisable to consummate and make effective, in the most
    expeditious manner practicable, the Merger and the other transactions
    contemplated by this Agreement, including using reasonable efforts to
    accomplish the following: (i) the taking of all reasonable acts necessary to
    cause the conditions precedent set forth in Article VI to be satisfied,
    (ii) the obtaining of all necessary actions or nonactions, waivers,
    consents, approvals, orders and authorizations from Governmental Entities
    and the making of all necessary registrations, declarations and filings
    (including registrations, declarations and filings with Governmental
    Entities, if any) and the taking of all reasonable steps as may be necessary
    to avoid any suit, claim, action, investigation or proceeding by any
    Governmental Entity, (iii) the obtaining of all consents, approvals or
    waivers from third parties required as a result of the transactions
    contemplated in this Agreement, (iv) the defending of any suits, claims,
    actions, investigations or proceedings, whether judicial or administrative,
    challenging this Agreement or the consummation of the transactions
    contemplated hereby, including seeking to have any stay or temporary
    restraining order entered by any court or other Governmental Entity vacated
    or reversed and (v) the execution or delivery of any additional instruments
    reasonably necessary to consummate the transactions contemplated by, and to
    fully carry out the purposes of, this Agreement. In connection with and
    without limiting the foregoing, Company and its Board of Directors shall, if
    any state takeover statute or similar statute or regulation is or becomes
    applicable to the Merger, this Agreement or any of the transactions
    contemplated by this Agreement, use all reasonable efforts to ensure that
    the Merger and the other transactions contemplated by this Agreement may be
    consummated as promptly as practicable on the terms contemplated by this
    Agreement and otherwise to minimize the effect of such statute or regulation
    on the Merger, this Agreement and the transactions contemplated hereby.
    Notwithstanding anything herein to the contrary, nothing in this Agreement
    shall be deemed to require Parent or Company or any subsidiary or affiliate
    thereof 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 business or to own or exercise control of such assets,
    properties and stock.

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<PAGE>
        (b) Company shall give prompt notice to Parent upon becoming aware that
    any representation or warranty made by it contained in this Agreement has
    become untrue or inaccurate, or of any failure of Company to comply with or
    satisfy in any material respect any covenant, condition or agreement to be
    complied with or satisfied by it under this Agreement, in each case, such
    that the conditions set forth in Section 6.3(a) or 6.3(b) would not be
    satisfied; PROVIDED, HOWEVER, that no such notification shall affect the
    representations, warranties, covenants or agreements of the parties or the
    conditions to the obligations of the parties under this Agreement.

        (c) Parent shall give prompt notice to Company (i) upon becoming aware
    that any representation or warranty made by it or Merger Sub contained in
    this Agreement has become untrue or inaccurate, or of any failure of Parent
    or Merger Sub to comply with or satisfy in any material respect any
    covenant, condition or agreement to be complied with or satisfied by it
    under this Agreement, in each case, such that the conditions set forth in
    Section 6.2(a) or 6.2(b) would not be satisfied or (ii) in the event Parent
    intends to undertake a transaction that would require the vote of Parent
    stockholders; PROVIDED, HOWEVER, that no such notification shall affect the
    representations, warranties, covenants or agreements of the parties or the
    conditions to the obligations of the parties under this Agreement.

    5.7  THIRD PARTY CONSENTS

    As soon as practicable following the date hereof, Parent and Company will
each use its commercially reasonable efforts to obtain any consents, waivers and
approvals under any of its or its subsidiaries' respective agreements,
contracts, licenses or leases required to be obtained in connection with the
consummation of the transactions contemplated hereby.

    5.8  STOCK OPTIONS, WARRANTS AND EMPLOYEE BENEFITS

        (a)  STOCK OPTIONS.  At the Effective Time, each outstanding option to
    purchase shares of Company Common Stock (each, a "Company Stock Option")
    under the Company Option Plans, whether or not vested, shall by virtue of
    the Merger be assumed by Parent. Each Company Stock Option so assumed by
    Parent under this Agreement will continue to have, and be subject to, the
    same terms and conditions of such options immediately prior to the Effective
    Time (including, without limitation, any repurchase rights or vesting
    provisions and provisions regarding the acceleration of vesting on certain
    transactions, other than the transactions contemplated by this Agreement),
    except that (i) each Company Stock Option will be exercisable (or will
    become exercisable in accordance with its terms) for that number of whole
    shares of Parent Common Stock equal to the product of the number of shares
    of Company Common Stock that were issuable upon exercise of such Company
    Stock Option immediately prior to the Effective Time multiplied by the
    Exchange Ratio, rounded down to the nearest whole number of shares of Parent
    Common Stock and (ii) the per share exercise price for the shares of Parent
    Common Stock issuable upon exercise of such assumed Company Stock Option
    will be equal to the quotient determined by dividing the exercise price per
    share of Company Common Stock at which such Company Stock Option was
    exercisable immediately prior to the Effective Time by the Exchange Ratio,
    rounded up to the nearest tenth of a cent.

        (b)  WARRANTS.  At the Effective Time, the Warrants will be assumed by
    Parent. Each Warrant so assumed by Parent under this Agreement will continue
    to have, and be subject to, the same terms and conditions set forth in the
    applicable warrant agreement immediately prior to the Effective Time
    (including, without limitation, any repurchase rights or vesting
    provisions), except that (i) each Warrant will be exercisable (or will
    become exercisable in accordance with its terms) for that number of whole
    shares of Parent Common Stock equal to the product of the number of shares
    of Company Common Stock that were issuable upon exercise of such Warrant
    immediately prior to the Effective Time multiplied by the Exchange Ratio,
    rounded to the nearest whole number of shares of Parent Common Stock and
    (ii) the per share exercise price for the share of Parent Common Stock
    issuable upon exercise of such assumed Warrant will be equal to the quotient
    determined by dividing the

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<PAGE>
    exercise price per share of Company Common Stock at which such Warrant was
    exercisable immediately prior to the Effective Time by the Exchange Ratio,
    rounded to the nearest whole cent. Company agrees to provide the holders of
    Company Warrants with any and all notices required as a result of the Merger
    and the transactions contemplated thereby.

        (c)  ESPP.  Prior to the Effective Time, outstanding purchase rights
    under Company's ESPP shall be exercised in accordance with the terms of the
    ESPP. With respect to each share of Company Common Stock purchased pursuant
    to the ESPP, such exercise shall by virtue of the Merger, and without any
    action on the part of the holder thereof, be converted into the right to
    receive a number of shares of Parent Common Stock equal to the Exchange
    Ratio without issuance of certificates representing issued and outstanding
    shares of Company Common Stock to ESPP participants. Company agrees that it
    shall terminate the ESPP immediately following the aforesaid purchase of
    shares of Company Common Stock thereunder.

    5.9  FORM S-8

    Parent agrees to file, if available for use by Parent, a registration
statement on Form S-8 for the shares of Parent Common Stock issuable with
respect to assumed Company Stock Options as soon as is reasonably practicable
after the Effective Time.

    5.10  INDEMNIFICATION

    From and after the Effective Time, Parent will cause the Surviving
Corporation to fulfill and honor in all respects the obligations of Company
pursuant to any indemnification agreements between Company and its directors and
officers in effect immediately prior to the Effective Time (the "INDEMNIFIED
PARTIES") and any indemnification provisions under the Company Charter Documents
as in effect on the date hereof. The Certificate of Incorporation and Bylaws of
the Surviving Corporation will contain provisions with respect to exculpation
and indemnification that are at least as favorable to the Indemnified Parties as
those contained in the Company Charter Documents as in effect on the date
hereof, which provisions will not be amended, repealed or otherwise modified for
a period of six (6) years 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 Company,
unless such modification is required by law. For a period of six years after the
Effective Time, Parent will cause the Surviving Corporation to use its
commercially reasonable efforts to maintain in effect, if available, directors'
and officers' liability insurance covering those persons who are currently
covered by Company's directors' and officers' liability insurance policy on
terms substantially similar to those applicable to the current directors and
officers of Company.

    5.11  NASDAQ LISTING

    Parent agrees to cause the listing on Nasdaq the shares of Parent Common
Stock issuable, and those required to be reserved for issuance, in connection
with the Merger, subject to official notice of issuance.

    5.12  COMPANY AFFILIATE AGREEMENT

    Set forth in Section 5.12 the Company Schedule is a list of those persons
who may be deemed to be, in Company's reasonable judgment, affiliates of Company
within the meaning of Rule 145 promulgated under the Securities Act (each, a
"COMPANY AFFILIATE"). Company will provide Parent with such information and
documents as Parent reasonably requests for purposes of reviewing such list.
Each Company Affiliate Agreement will be in full force and effect as of the
Effective Time. Parent will be entitled to place appropriate legends on the
certificates evidencing any Parent Common Stock to be received by a Company
Affiliate pursuant to the terms of this Agreement, and to issue appropriate stop
transfer instructions to the transfer agent for the Parent Common Stock,
consistent with the terms of the Company Affiliate Agreement.

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<PAGE>
    5.13  REGULATORY FILINGS; REASONABLE EFFORTS

    As soon as may be reasonably practicable, Company and Parent 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. Company and Parent 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; PROVIDED, HOWEVER, that Parent shall not be
required to agree to any divestiture by Parent or Company or any of Parent's
subsidiaries or affiliates of shares of capital stock or of any business, assets
or property of Parent or its subsidiaries or affiliates or of Company, its
affiliates, 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.

    5.14  NO RIGHTS PLAN AMENDMENT

    Except as expressly required by Section 6.3(g), prior to the Closing,
Company and its Board of Directors shall not amend or modify or take any other
action with regard to the Company Rights Plan in any manner or take another
action so as to (i) render the Company Rights Plan inapplicable to any
transaction(s) other than the Merger and other transactions contemplated by this
Agreement, the Stock Option Agreement, the Company Affiliate Agreements and the
Company Voting Agreements, or (ii) permit any person or group who would
otherwise be an Acquiring Person (as defined in the Company Rights Plan) not to
be an Acquiring Person, or (iii) provide that a Distribution Date or a Shares
Acquisition Date (as such terms are defined in the Company Rights Plan) or
similar event does not occur as promptly as practicable by reason of the
execution of any agreement or transaction other than this Agreement and the
Merger and the agreements and transactions contemplated hereby and thereby, or
(iv) except as specifically contemplated by this Agreement, otherwise affect the
rights of holders of Rights.

    5.15  TERMINATION OF 401(K) PLAN

    Company and its Affiliates, as applicable, each agrees to terminate its
401(k) plan immediately prior to Closing, unless Parent, in its sole and
absolute discretion, agrees to sponsor and maintain such plans by providing
Company with written notice of such election at least three (3) days before the
Effective Time. Unless Parent provides such notice to Company, Parent shall
receive from Company evidence that Company's and each Affiliate's (as
applicable) 401(k) plan has been terminated pursuant to resolutions of each such
entity's Board of Directors (the form and substance of which resolutions shall
be subject to review and approval of Parent), effective as of the day
immediately preceding the Closing Date.

    5.16  SEVERANCE

    (i) Parent shall provide each Company employee terminated by Parent or its
Affiliates at the Effective Time the same severance, transition and separation
benefits as such employee would have received from Company pursuant to policies
and practices in effect immediately prior to the Effective Time; (ii) Parent
shall provide each Company employee identified at Closing who is hired by Parent
to assist with the transition of Company after the Effective Time and who is
subsequently terminated by Parent or its Affiliates the same severance,
transition and separation benefits as such employee would have received from
Company pursuant to policies and practices in effect immediately prior to the
Effective Time; and (iii) Parent shall provide each Company employee who becomes
a full-time employee of Parent and who is subsequently terminated by Parent or
its Affiliates severance, transition and separation benefits under Parent's
policies and practices in effect at such time. Company's Policy Regarding
Termination of Executive Status and Related Matters shall apply to the
transactions contemplated by this Agreement but

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shall not apply to subsequent changes of control (as defined therein) occuring
between Merger Sub or any affiliated entities subsequent to the Effective Time.

    5.17  PARENT STOCKHOLDERS' MEETING

    Promptly after the date hereof, Parent will take all action necessary in
accordance with Delaware Law and the Parent Charter Documents to convene the
Parent 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 S-4, for the purpose of voting upon the
issuance of Parent Common Stock pursuant to the Merger and this Agreement.
Parent will use its commercially reasonable efforts to solicit from its
stockholders proxies in favor of the issuance of Parent Common Stock in
connection with 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
Nasdaq or Delaware Law to obtain such approvals. Notwithstanding anything to the
contrary contained in this Agreement, Parent may adjourn or postpone the Parent
Stockholders' Meeting to the extent necessary to ensure that any necessary
supplement or amendment to the Prospectus/Proxy Statement is provided to
Parent's stockholders in advance of a vote on the issuance of such stock or, if
as of the time for which the Parent Stockholders' Meeting is originally
scheduled (as set forth in the Prospectus/Proxy Statement) there are
insufficient shares of Parent Common Stock represented (either in person or by
proxy) to constitute a quorum necessary to conduct the business of the Parent
Stockholders' Meeting. Parent shall ensure that the Parent Stockholders' Meeting
is called, noticed, convened and conducted, and that all proxies solicited by
Parent in connection with the Parent Stockholders' Meeting are solicited, in
compliance with Delaware Law, the Parent Charter Documents, the rules of Nasdaq
and all other applicable legal requirements.

    5.18  DIRECTORS

    Promptly following the Effective Time, Parent will cause Mr. Peter Gyenes
and Mr. Robert Morrill to be designated as directors of Parent to serve in the
class of directors whose term expires in 2002. In the event either of
Messrs. Gyenes or Morrill is unable or unwilling to serve or complete his term,
Mr. Morrill will designate Mr. Gyenes' successor and Mr. Gyenes will designate
Mr. Morrill's successor. If the individual that will make such designation is
unable to do so, Mr. Robert Claussen will make such designation.

    5.19  BENEFIT ARRANGEMENTS

    Parent covenants and agrees that to the extent permitted by applicable law
and to the extent the existing benefit plans and arrangements provided by
Company to its employees are terminated on or after the Effective Time, such
employees shall be entitled to benefits which are available or subsequently
become available to Parent's employees, and on a basis which is on parity with
Parent's employees. For purposes of satisfying the terms and conditions of such
plans, Parent shall give full credit for eligibility, vesting or benefit accrual
to the extent possible for each participant's period of service at the Company
prior to the Effective Time.

    5.20  RESTRUCTURING

    In the event that all conditions to the closing are satisfied on or before
the date specified in Section 7.1(b) other than the condition specified in
Section 6.3(f), then the parties agree to use best efforts in good faith to
negotiate the restructure of this Agreement to allow the transaction
contemplated hereby to proceed; provided however that in such case neither party
shall be bound to any agreement or any such restructuring unless mutually
agreed.

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                                   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 Closing Date of
the following conditions:

        (a)  COMPANY 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 Company.

        (b)  PARENT 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 Parent.

        (c)  REGISTRATION STATEMENT EFFECTIVE; PROXY STATEMENT.  The SEC shall
    have declared the S-4 effective. No stop order suspending the effectiveness
    of the S-4 or any part thereof shall have been issued and no proceeding for
    that purpose, and no similar proceeding in respect of the Proxy
    Statement/Prospectus, shall have been initiated or threatened in writing by
    the SEC.

        (d)  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 and
    all material foreign antitrust approvals required to be obtained prior to
    the Merger in connection with the transactions contemplated hereby shall
    have been obtained.

        (e)  TAX OPINIONS.  Parent and Company shall each have received written
    opinions from their respective tax counsel (Wilson Sonsini Goodrich &
    Rosati, Professional Corporation, and Choate Hall & Stewart, respectively),
    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 Parent or Company 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 such
    reasonable representations as requested by such counsel for the purpose of
    rendering such opinions.

        (f)  NASDAQ LISTING.  The shares of Parent Common Stock issuable to the
    stockholders of Company 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 Nasdaq upon official notice of issuance.

    6.2  ADDITIONAL CONDITIONS TO OBLIGATIONS OF COMPANY

    The obligation of Company to consummate and effect the Merger shall be
subject to the satisfaction at or prior to the Closing Date of each of the
following conditions, any of which may be waived, in writing, exclusively by
Company:

        (a)  REPRESENTATIONS AND WARRANTIES.  Each representation and warranty
    of Parent and Merger Sub contained in this Agreement (i) shall have been
    true and correct as of the date of this Agreement and (ii) shall be true and
    correct on and as of the Closing Date with the same force and effect as if
    made on the Closing Date except (A) in each case, or in the aggregate, as
    does not constitute a Material Adverse Effect on Parent and Merger Sub,
    (B) for changes contemplated by this Agreement and (C) for those
    representations and warranties which address matters only as of a particular
    date

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<PAGE>
    (which representations shall have been true and correct (subject to the
    qualifications as set forth in the preceding clause A) as of such particular
    date) (it being understood that, for purposes of determining the accuracy of
    such representations and warranties, (i) all "Material Adverse Effect"
    qualifications and other qualifications based on the word "material" or
    similar phrases contained in such representations and warranties shall be
    disregarded and (ii) any update of or modification to the Parent Schedule
    made or purported to have been made after the date of this Agreement shall
    be disregarded). Company shall have received a certificate with respect to
    the foregoing signed on behalf of Parent by an authorized officer of Parent.

        (b)  AGREEMENTS AND COVENANTS.  Parent 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 Closing Date, and Company shall have received a
    certificate to such effect signed on behalf of Parent by an authorized
    officer of Parent.

        (c)  MATERIAL ADVERSE EFFECT.  No Material Adverse Effect with respect
    to Parent and its subsidiaries shall have occurred since the date of this
    Agreement.

    6.3  ADDITIONAL CONDITIONS TO THE OBLIGATIONS OF PARENT AND MERGER SUB

    The obligations of Parent and Merger Sub to consummate and effect the Merger
shall be subject to the satisfaction at or prior to the Closing Date of each of
the following conditions, any of which may be waived, in writing, exclusively by
Parent:

        (a)  REPRESENTATIONS AND WARRANTIES.  Each representation and warranty
    of Company contained in this Agreement (i) shall have been true and correct
    as of the date of this Agreement and (ii) shall be true and correct on and
    as of the Closing Date with the same force and effect as if made on and as
    of the Closing Date except (A) in each case, or in the aggregate, as does
    not constitute a Material Adverse Effect on Company provided, however, such
    Material Adverse Effect qualifier shall be inapplicable with respect to
    representations and warranties contained in Section 2.3, (B) for changes
    contemplated by this Agreement and (C) for those representations and
    warranties which address matters only as of a particular date (which
    representations shall have been true and correct (subject to the
    qualifications as set forth in the preceding clause (A) as of such
    particular date) (it being understood that, for purposes of determining the
    accuracy of such representations and warranties, (i) all "Material Adverse
    Effect" qualifications and other qualifications based on the word "material"
    or similar phrases contained in such representations and warranties shall be
    disregarded and (ii) any update of or modification to the Company Schedule
    made or purported to have been made after the date of this Agreement shall
    be disregarded). Parent shall have received a certificate with respect to
    the foregoing signed on behalf of Company by an authorized officer of
    Company.

        (b)  AGREEMENTS AND COVENANTS.  Company 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 at or prior to the Closing
    Date, and Parent shall have received a certificate to such effect signed on
    behalf of Company by the Chief Executive Officer and the Chief Financial
    Officer of the Company.

        (c)  MATERIAL ADVERSE EFFECT.  No Material Adverse Effect with respect
    to Company and its subsidiaries shall have occurred since the date of this
    Agreement.

        (d)  AFFILIATE AGREEMENTS.  Each of the Company Affiliates shall have
    entered into the Company Affiliate Agreement and each of such agreements
    will be in full force and effect as of the Effective Time.

        (e)  CONSENTS.  Company shall have obtained all consents, waivers and
    approvals required in connection with the consummation of the transactions
    contemplated hereby in connection with the agreements, contracts, licenses
    or leases set forth on Section 6.3(e) of the Company Schedule.

                                       39
<PAGE>
        (f)  OPINIONS OF ACCOUNTANTS.  Parent shall have received (i) from
    Deloitte & Touche LLP, independent auditors for Company, a copy of a letter
    addressed to Company dated as of the Closing Date in substance reasonably
    satisfactory to Parent (which may contain customary qualifications and
    assumptions) to the effect that Deloitte & Touche LLP concurs with Company
    management's conclusion that no conditions exist related to Company that
    would preclude Parent from accounting for the Merger as a
    "pooling-of-interests" and (ii) from KPMG LLP, independent accountants for
    Parent, a letter dated as of the Closing Date in substance reasonably
    satisfactory to Parent (which may contain customary qualifications and
    assumptions) to the effect that KPMG LLP concurs with Parent management's
    conclusion that no conditions exist related to Parent that would preclude
    Parent from accounting for the Merger as a "pooling-of-interests."

        (g)  COMPANY RIGHTS PLANS.  All actions necessary to extinguish and
    cancel all outstanding Rights under the Company Rights Plan at the Effective
    Time and to render such rights inapplicable to the Merger shall have been
    taken.

        (h)  NONCOMPETITION AGREEMENTS.  Parent shall have received from each of
    the persons identified on EXHIBIT D a noncompetition agreement in a form
    provided by the Parent and approved by the Company.

                                  ARTICLE VII
                       TERMINATION, AMENDMENT AND WAIVER

    7.1  TERMINATION.

    This Agreement may be terminated at any time prior to the Effective Time,
whether before or after the requisite approval of the stockholders of Company:

        (a) by mutual written consent duly authorized by the Boards of Directors
    of Parent and Company;

        (b) by either Company or Parent if the Merger shall not have been
    consummated by June 30, 2000 for any reason; PROVIDED, HOWEVER, that 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 Company or Parent if a Governmental Entity shall have
    issued an order, decree or ruling or taken any other action, in any case
    having the effect of permanently restraining, enjoining or otherwise
    prohibiting the Merger, which order, decree, ruling or other action is final
    and nonappealable;

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

        (e) by Company, upon a breach of any representation, warranty, covenant
    or agreement on the part of Parent set forth in this Agreement, or if any
    representation or warranty of Parent 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 Parent's representations and warranties or breach by Parent is
    curable by Parent through the exercise of its commercially reasonable
    efforts,

                                       40
<PAGE>
    then Company may not terminate this Agreement under this Section 7.1(e) for
    thirty (30) days after delivery of written notice from Company to Parent of
    such breach, provided Parent continues to exercise commercially reasonable
    efforts to cure such breach (it being understood that Company may not
    terminate this Agreement pursuant to this paragraph (e) if it shall have
    materially breached this Agreement or if such breach by Parent is cured
    during such thirty (30)-day period);

        (f) by Parent, upon a breach of any representation, warranty, covenant
    or agreement on the part of Company set forth in this Agreement, or if any
    representation or warranty of Company 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 Company's representations and warranties or breach by Company
    is curable by Company through the exercise of its commercially reasonable
    efforts, then Parent may not terminate this Agreement under this
    Section 7.1(f) for thirty (30) days after delivery of written notice from
    Parent to Company of such breach, provided Company continues to exercise
    commercially reasonable efforts to cure such breach (it being understood
    that Parent may not terminate this Agreement pursuant to this paragraph (f)
    if it shall have materially breached this Agreement or if such breach by
    Company is cured during such thirty (30)-day period);

        (g) by Parent, upon a breach of the provisions of Section 5.4 of this
    Agreement;

        (h) by Parent if a Triggering Event (as defined below) shall have
    occurred; or

        (i) by either Company or Parent if the required approval by the
    stockholders of Parent contemplated by this Agreement shall not have been
    obtained by reason of the failure to obtain the required vote at a meeting
    of Parent stockholders duly convened therefor or at any adjournment thereof;
    PROVIDED, HOWEVER, that the right to terminate this Agreement under this
    Section 7.1(i) shall not be available to Parent where the failure to obtain
    Parent stockholder approval shall have been caused by the action or failure
    to act of parent and such action or failure to act constitutes a breach by
    Parent of this Agreement.

    For the purposes of this Agreement, a "Triggering Event" shall be deemed to
have occurred if: (i) the Board of Directors of Company or any committee thereof
shall for any reason have withdrawn or shall have amended or modified in a
manner adverse to Parent its unanimous recommendation in favor of, the adoption
and approval of the Agreement or the approval of the Merger; (ii) Company shall
have failed to include in the Proxy Statement/Prospectus the unanimous
recommendation of the Board of Directors of Company in favor of the adoption and
approval of the Agreement and the approval of the Merger; (iii) Board of
Directors of Company fails to reaffirm its unanimous recommendation in favor of
the adoption and approval of the Agreement and the approval of the Merger within
five (5) business days after Parent requests in writing that such recommendation
be reaffirmed at any time following the announcement of an Acquisition Proposal;
(iv) the Board of Directors of Company or any committee thereof shall have
approved or recommended any Acquisition Proposal; (v) Company shall have entered
into any letter of intent or similar document or any agreement, contract or
commitment accepting any Acquisition Proposal; or (vi) a tender or exchange
offer relating to securities of Company shall have been commenced by a person
unaffiliated with Parent and Company shall not have sent to its securityholders
pursuant to Rule 14e-2 promulgated under the Securities Act, within ten
(10) business days after such tender or exchange offer is first published sent
or given, a statement disclosing that Company recommends rejection of such
tender or exchange offer.

                                       41
<PAGE>
    7.2  NOTICE OF TERMINATION; EFFECT OF TERMINATION

    Any termination of this Agreement under Section 7.1 above will be effective
immediately upon (or, if the termination is pursuant to Section 7.1(e) or
Section 7.1(f) and the proviso therein is applicable, thirty (30) days after)
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 (General
Provisions), each of which shall survive the termination of this Agreement, and
(ii) nothing herein shall relieve any party from liability for any intentional
or willful breach of this Agreement. No termination of this Agreement shall
affect the obligations of the parties contained in the Confidentiality
Agreement, all of which obligations shall survive termination of this Agreement
in accordance with their terms.

    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 Parent and
    Company shall share equally all fees and expenses, other than attorneys' and
    accountants fees and expenses, incurred in relation to the printing and
    filing (with the SEC) of the Proxy Statement/ Prospectus (including any
    preliminary materials related thereto) and the S-4 (including financial
    statements and exhibits) and any amendments or supplements thereto.

        (b)  COMPANY PAYMENTS.

           (i) Company shall pay to Parent in immediately available funds,
       within one (1) business day after demand by Parent, an amount equal to
       $25,500,000.00 (the "TERMINATION FEE") if this Agreement is terminated by
       Parent pursuant to Section 7.1(g) or (h).

           (ii) Company shall pay Parent in immediately available funds, within
       one (1) business day after demand by Parent, an amount equal to the
       Termination Fee, if this Agreement is terminated by Parent or Company, as
       applicable, pursuant to Sections 7.1(b) or (d) and any of the following
       shall occur:

               a)  if following the date hereof and prior to the termination of
           this Agreement, a third party has announced an Acquisition Proposal
           and within twelve (12) months following the termination of this
           Agreement a Company Acquisition (as defined below) is consummated; or

               b)  if following the date hereof and prior to the termination of
           this Agreement, a third party has announced an Acquisition Proposal
           and within twelve (12) months following the termination of this
           Agreement Company enters into an agreement or letter of intent
           providing for a Company Acquisition.

           Notwithstanding the foregoing, Parent shall not be entitled to
       Termination Fee with respect to Section 7.1(b) if Parent's or Merger
       Sub's action or failure to act has been the principal cause of or
       resulted in the failure of the Merger to occur on or before June 30, 2000
       and such action or failure to act constitutes a breach of this Agreement.

          (iii) Company acknowledges that the agreements contained in this
       Section 7.3(b) are an integral part of the transactions contemplated by
       this Agreement, and that, without these agreements, Parent would not
       enter into this Agreement; accordingly, if Company fails to pay in a
       timely manner the amounts due pursuant to this Section 7.3(b) and, in
       order to obtain such payment, Parent makes a claim that results in a
       judgment against Company for the amounts set forth in this
       Section 7.3(b), Company shall pay to Parent its reasonable costs and
       expenses (including reasonable attorneys' fees and expenses) in
       connection with such suit, together with interest on the amounts set
       forth in this Section 7.3(b) at the prime rate of The Chase Manhattan

                                       42
<PAGE>
       Bank in effect on the date such payment was required to be made. Payment
       of the fees described in this Section 7.3(b) shall not be in lieu of
       damages incurred in the event of breach of this Agreement. For the
       purposes of this Agreement, "COMPANY ACQUISITION" shall mean any of the
       following transactions (other than the transactions contemplated by this
       Agreement): (i) a merger, consolidation, business combination,
       recapitalization, liquidation, dissolution or similar transaction
       involving Company pursuant to which the stockholders of Company
       immediately preceding such transaction hold less than 50% of the
       aggregate equity interests in the surviving or resulting entity of such
       transaction, (ii) a sale or other disposition by Company of assets
       representing in excess of 50% of the aggregate fair market value of
       Company's business immediately prior to such sale or (iii) the
       acquisition by any person or group (including by way of a tender offer or
       an exchange offer or issuance by Company), directly or indirectly, of
       beneficial ownership or a right to acquire beneficial ownership of shares
       representing in excess of 50% of the voting power of the then outstanding
       shares of capital stock of Company.

    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 Parent and Company.

    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 Company, Parent 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.

    8.2  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 Parent or Merger Sub, to:

           Informix Corporation
           4100 Bohannon Drive
           Menlo Park, California 94025
           Attention: Scott Harlan, Esq.
           Telephone No.: (650) 926-6300
           Fax No.: (650) 926-6091

                                       43
<PAGE>
           with a copy to:

           Wilson Sonsini Goodrich & Rosati
           Professional Corporation
           650 Page Mill Road
           Palo Alto, California 94304-1050
           Attention:  Douglas H. Collom
                     Michael J. Kennedy
           Telephone No.: (650) 493-9300
           Fax No.: (650) 493-6811

       (b) if to Company, to:

           Ardent Software, Inc.
           50 Washington Street
           Westboro, Massachusetts
           Attention: James K. Walsh
           Telephone No.:(508) 366-3888
           Fax No.: (508) 389-8767

           with a copy to:

           Choate, Hall & Stewart
           Exchange Place
           53 State Street
           Boston, Massachusetts 02109
           Attention: Richard Hoehn, Esq.
           Telephone No.:(617) 248-5000
           Fax No.: (617) 248-4000

    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. When a reference is made in this Agreement to Sections, such
    reference shall be to a Section of this Agreement. Unless otherwise
    indicated the words "include," "includes" and "including" when used herein
    shall be deemed in each case to be followed by the words "without
    limitation." The 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) For purposes of this Agreement, the term "KNOWLEDGE" means with
    respect to a party hereto, with respect to any matter in question, that any
    of the executive officers of such party has actual knowledge of such matter.

        (c) For purposes of this Agreement, the term "MATERIAL ADVERSE EFFECT"
    when used in connection with an entity means any change, event, violation,
    inaccuracy, circumstance or effect, individually or when aggregated with
    other changes, events, violations, inaccuracies, circumstances or effects,
    that is materially adverse to the business, assets (including intangible
    assets), capitalization, financial condition or results of operations of
    such entity and its subsidiaries taken as a whole; PROVIDED that the failure
    of Parent or Company to achieve the current street expectations for any
    fiscal quarter shall not by itself constitute a Material Adverse Effect.

        (d) For purposes of this Agreement, the term "PERSON" shall mean any
    individual, corporation (including any non-profit corporation), general
    partnership, limited partnership, limited liability

                                       44
<PAGE>
    partnership, joint venture, estate, trust, company (including any limited
    liability company or joint stock company), firm or other enterprise,
    association, organization, entity or Governmental Entity.

    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 the
Company Schedule and the Parent Schedule (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, 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 Section 5.10.

    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.

    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.

                                       45
<PAGE>
    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 other
parties. 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.

    8.11  WAIVER OF JURY TRIAL

    EACH OF PARENT, COMPANY 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 PARENT, COMPANY OR MERGER SUB IN THE NEGOTIATION, ADMINISTRATION,
PERFORMANCE AND ENFORCEMENT HEREOF.

                                     *****

                                       46
<PAGE>
    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.

<TABLE>
<S>                                                    <C>    <C>
                                                       INFORMIX CORPORATION

                                                       By:    /s/ JEAN-YVES DEXMIER
                                                              --------------------------------------
                                                       Name:  Jean-Yves Dexmier
                                                              --------------------------------------
                                                       Title: President and Chief Executive Officer
                                                              --------------------------------------

                                                       IROQUOIS ACQUISITION CORPORATION

                                                       By:    /s/ JEAN-YVES DEXMIER
                                                              --------------------------------------
                                                       Name:  Jean-Yves Dexmier
                                                              --------------------------------------
                                                       Title: President
                                                              --------------------------------------

                                                       ARDENT SOFTWARE, INC.

                                                       By:    /s/ PETER GYENES
                                                              --------------------------------------
                                                       Name:  Peter Gyenes
                                                              --------------------------------------
                                                       Title: Chairman, President and CEO
                                                              --------------------------------------
</TABLE>

                       **** REORGANIZATION AGREEMENT ****

                                       47

<PAGE>

                                  EXHIBIT 2.2
                             STOCK OPTION AGREEMENT
<PAGE>
                             STOCK OPTION AGREEMENT

    THIS STOCK OPTION AGREEMENT (this "AGREEMENT") is made and entered into as
of November 30, 1999, among Informix Corporation, a Delaware corporation
("PARENT"), and Ardent Software, Inc., a Delaware corporation (the "COMPANY").
Capitalized terms used but not otherwise defined herein will have the meanings
ascribed to them in the Reorganization Agreement (as defined below).

                                    RECITALS

    A. The Company, Merger Sub (as defined below) and Parent have entered into
an Agreement and Plan of Reorganization (the "REORGANIZATION AGREEMENT") which
provides for the merger (the "MERGER") of a wholly-owned subsidiary of Parent
("MERGER SUB") with and into the Company. Pursuant to the Merger, all
outstanding capital stock of the Company will be converted into the right to
receive Common Stock of Parent.

    B.  As a condition to Parent's willingness to enter into the Reorganization
Agreement, Parent has requested that Company agree, and Company has so agreed,
to grant to Parent an option to acquire shares of Company's Common Stock, $0.01
par value per share (the "COMPANY SHARES"), upon the terms and subject to the
conditions set forth herein.

    NOW, THEREFORE, in consideration of the foregoing and of the mutual
covenants and agreements set forth herein and in the Reorganization 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.  The Company hereby grants to Parent an irrevocable
option (the "OPTION") to acquire up to a number of Company 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) occurs (the "OPTION SHARES"),
in the manner set forth below by paying cash at a price of $38.50 per share (the
"EXERCISE PRICE").

    2.  EXERCISE OF OPTION.

        (a) The Option may be exercised by Parent, in whole or in part, at any
    time or from time to time if the Reorganization Agreement is terminated
    pursuant to Section 7.1(b), 7.1(d), 7.1(g), or 7.1(h) thereof and an event
    causing the Termination Fee to become payable pursuant to Section 7.3(b) of
    the Reorganization Agreement occurs (any of the events being referred to
    herein as an "EXERCISE EVENT"). In the event Parent wishes to exercise the
    Option, Parent will deliver to the Company a written notice (each an
    "EXERCISE NOTICE") specifying the total number of Option Shares it wishes to
    acquire. Each closing of a purchase of Option Shares (a "CLOSING") will
    occur on a date and at a time prior to the termination of the Option
    designated by Parent in an Exercise Notice delivered at least two business
    days prior to the date of such Closing, which Closing will be held at the
    principal offices of the Company.

        (b) The Option will terminate upon the earliest of (i) the Effective
    Time, (ii) twelve (12) months following the date on which the Reorganization
    Agreement is terminated pursuant to Section 7.1(b) or 7.1(d) thereof, if no
    event causing the Termination Fee to become payable pursuant to
    Section 7.3(b)(ii) of the Reorganization Agreement has occurred,
    (iii) twelve (12) months following the date on which the Reorganization
    Agreement is terminated pursuant to Section 7.1(g) or 7.1(h) thereof,
    (iv) in the event the Reorganization Agreement has been terminated pursuant
    to Section 7.1(b) or 7.1(d) thereof and the Termination Fee became payable
    pursuant to Section 7.3(b)(ii) thereof, 18 months after payment of the
    Termination Fee; and (v) the date on which the Reorganization Agreement is
    otherwise terminated if neither a Triggering Event nor the announcement of
    an Acquisition Proposal by a third party occurred on or prior to the date of
    such termination; PROVIDED, HOWEVER, that if the Option 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 will not have
    expired or been terminated, then the Option will not terminate until the
    tenth business

                                       1
<PAGE>
    day after such impediment to exercise will have been removed or will have
    become final and not subject to appeal.

    3.  CONDITIONS TO CLOSING.  The obligation of Company to issue Option Shares
to Parent hereunder is subject to the conditions that (A) any waiting period
under the HSR Act applicable to the issuance of the Option Shares hereunder will
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 will 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 will be in effect. It is understood and agreed that at
any time during which the Option is exercisable, 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.

    4.  CLOSING.  At any Closing, (A) the Company will deliver to Parent a
single certificate in definitive form representing the number of Company Shares
designated by Parent in its Exercise Notice, such certificate to be registered
in the name of Parent and to bear the legend set forth in Section 9 hereof,
against delivery of (B) payment by Parent to the Company of the aggregate
purchase price for the Company Shares so designated and being purchased by
delivery of a certified check or bank check.

    5.  REPRESENTATIONS AND WARRANTIES OF THE COMPANY.  Company represents and
warrants to Parent that (A) Company 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
the Company and consummation by the Company of the transactions contemplated
hereby have been duly authorized by all necessary corporate action on the part
of the Company and no other corporate proceedings on the part of the Company are
necessary to authorize this Agreement or any of the transactions contemplated
hereby; (C) this Agreement has been duly executed and delivered by the Company
and constitutes a legal, valid and binding obligation of the Company and,
assuming this Agreement constitutes a legal, valid and binding obligation of
Parent, is enforceable against the Company in accordance with its terms;
(D) except for any filings required under the HSR Act, the Company has taken all
necessary corporate and other actions 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 Company Shares for Parent to exercise the Option
in full and will take all necessary corporate or other action to authorize and
reserve for issuance all additional Company Shares or other securities which may
be issuable pursuant to Section 8(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
Company Shares and any other securities to Parent upon exercise of the Option,
Parent will acquire such Company 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 Parent; (F) the execution
and delivery of this Agreement by the Company do not, and the performance of
this Agreement by the Company will not, (i) conflict with or violate the
Certificate of Incorporation or Bylaws or equivalent organizational documents of
the Company or any of its subsidiaries, (ii) conflict with or violate any law,
rule, regulation, order, judgment or decree applicable to the Company 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 the Company's or any of its subsidiaries' 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 the
Company 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 the Company or any of its subsidiaries
is a party or by which the Company or any of its subsidiaries or its or

                                       2
<PAGE>
any of their respective properties are bound or affected; and (G) the execution
and delivery of this Agreement by the Company does not, and the performance of
this Agreement by the Company 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.  CERTAIN RIGHTS.

        (a)  PARENT PUT.  At the request of and upon notice by Parent (the "PUT
    NOTICE"), at any time during the period during which the Option is
    exercisable pursuant to Section 2 (the "PURCHASE PERIOD"), the Company (or
    any successor entity thereof) will purchase from Parent the Option, to the
    extent not previously exercised, at the price set forth in subparagraph
    (i) below (as limited by subparagraph (iii) below), and the Option Shares,
    if any, acquired by Parent pursuant thereto, at the price set forth in
    subparagraph (ii) below (as limited by subparagraph (iii) below):

           (i) The difference between the "MARKET/TENDER OFFER PRICE" for the
       Company Shares as of the date Parent gives notice of its intent to
       exercise its rights under this Section 6(a) (defined as the higher of
       (A) the highest price per share offered as of such date pursuant to any
       Acquisition Proposal which was made prior to such date and (B) the
       highest closing sale price of Company Shares then on the Nasdaq National
       Market during the 20 trading days ending on the trading day immediately
       preceding such date) and the Exercise Price, multiplied by the number of
       Company Shares purchasable pursuant to the Option that remain, but only
       if the Market/Tender Offer Price is greater than the Exercise Price. For
       purposes of determining the highest price offered pursuant to any
       Acquisition Proposal which involves consideration other than cash, the
       value of such consideration will be equal to the higher of (x) if
       securities of the same class of the proponent as such consideration are
       traded on any national securities exchange or by any registered
       securities association, a value based on the closing sale price or asked
       price for such securities on their principal trading market on such date
       and (y) the value ascribed to such consideration by the proponent of such
       Acquisition Proposal, or if no such value is ascribed, a value determined
       in good faith by the Board of Directors of the Company.

           (ii) The Exercise Price paid by Parent for Company Shares acquired
       pursuant to the Option plus the difference between the Market/Tender
       Offer Price and such Exercise Price (but only if the Market/Tender Offer
       Price is greater than the Exercise Price) multiplied by the number of
       Company Shares so purchased.

          (iii) Notwithstanding subparagraphs (i) and (ii) above, pursuant to
       this Section 6 Company will not be required to pay Parent in excess of an
       aggregate of (x) $25,500,000.00 PLUS (y) the Exercise Price paid by
       Parent for Company Shares acquired pursuant to the Option MINUS (z) any
       amounts paid to Parent by the Company pursuant to Section 7.3(b) of the
       Reorganization Agreement.

        (b)  PAYMENT AND REDELIVERY OF OPTION OR SHARES.  In the event Parent
    exercises its rights under Section 6(a), the Company will, within five
    business days after Parent delivers notice pursuant to Section 6(a), pay the
    required amount to Parent in immediately available funds and Parent will
    surrender to the Company the Option and the certificates evidencing the
    Company Shares purchased by Parent pursuant thereto.

    7.  REGISTRATION RIGHTS.

        (a) Following the termination of the Reorganization Agreement, Parent
    (sometimes referred to herein as the "HOLDER") may by written notice (a
    "REGISTRATION NOTICE") to the Company (the "REGISTRANT") request the
    Registrant to register under the Securities Act all or any part of the
    shares acquired by the Holder pursuant to this Agreement (such shares
    requested to be registered, the "REGISTRABLE SECURITIES") in order to permit
    the sale or other disposition of any or all shares of the Registrable
    Securities that have been acquired by or are issuable to Holder upon
    exercise of the

                                       3
<PAGE>
    Option in accordance with the intended method of sale or other disposition
    stated by Holder, including a "shelf" registration statement under Rule 415
    under the Securities Act or any successor provision. Holder agrees to cause,
    and to cause any underwriters of any sale or other disposition to cause, any
    sale or other disposition pursuant to such registration statement to be
    effected on a widely distributed basis so that upon consummation thereof no
    purchaser or transferee will own beneficially more than 5.0% of the
    then-outstanding voting power of Registrant. Upon a request for
    registration, the Registrant will have the option exercisable by written
    notice delivered to the Holder within ten business days after the receipt of
    the Registration Notice, irrevocably to agree to purchase all or any part of
    the Registrable Securities for cash at a price (the "OPTION PRICE" equal to
    the product of (i) the number of Registrable Securities so purchased and
    (ii) the per share average of the closing sale prices of the Registrant's
    Common Stock on the Nasdaq National Market for the ten trading days
    immediately preceding the date of the Registration Notice. Any such purchase
    of Registrable Securities by the Registrant hereunder will take place at a
    closing to be held at the principal executive offices of the Registrant or
    its counsel at any reasonable date and time designated by the Registrant in
    such notice within ten business days after delivery of such notice. The
    payment for the shares to be purchased will be made by delivery at the time
    of such closing of the Option Price in immediately available funds.

        (b) If the Registrant does not elect to exercise its option to purchase
    pursuant to Section 7(a) with respect to all Registrable Securities, the
    Registrant will use all reasonable efforts to effect, as promptly as
    practicable, the registration under the Securities Act of the unpurchased
    Registrable Securities requested to be registered in the Registration Notice
    and to keep such registration statement effective for such period not in
    excess of 120 calendar days from the day such registration statement first
    becomes effective as may be reasonably necessary to effect such sale or
    other disposition; PROVIDED, HOWEVER, that the Holder will not be entitled
    to more than an aggregate of two effective registration statements
    hereunder. The obligations of Registrant hereunder to file a registration
    statement and to maintain its effectiveness may be suspended for up to 120
    calendar days in the aggregate if the Board of Directors of Registrant shall
    have determined that the filing of such registration statement or the
    maintenance of its effectiveness would require premature disclosure of
    material nonpublic information that would materially and adversely affect
    Registrant or otherwise interfere with or adversely affect any pending or
    proposed offering of securities of Registrant or any other material
    transaction involving Registrant. If consummation of the sale of any
    Registrable Securities pursuant to a registration hereunder does not occur
    within 120 days after the filing with the SEC of the initial registration
    statement therefor, the provisions of this Section 7 will again be
    applicable to any proposed registration. The Registrant will use all
    reasonable efforts to cause any Registrable Securities registered pursuant
    to this Section 7 to be qualified for sale under the securities or blue sky
    laws of such jurisdictions as the Holder may reasonably request and will
    continue such registration or qualification in effect in such jurisdictions;
    PROVIDED, HOWEVER, that the Registrant will not be required to qualify to do
    business in, or consent to general service of process in, any jurisdiction
    by reason of this provision. If Registrant effects a registration under the
    Securities Act of Company Common Stock for its own account or for any other
    stockholders of Registrant (other than on Form S-4 or Form S-8, or any
    successor form), it will allow Holder the right to participate in such
    registration by selling its Registrable Securities, and such participation
    will not affect the obligation of Registrant to effect demand registration
    statements for Holder under this Section 7; PROVIDED that, if the managing
    underwriters of such offering advise Registrant in writing that in their
    opinion the number of shares of Company Common Stock requested to be
    included in such registration exceeds the number which can be sold in such
    offering, Registrant will include the shares requested to be included
    therein by Holder pro rata with the shares intended to be included therein
    by Registrant and such other stockholders.

        (c) The registration rights set forth in this Section 7 are subject to
    the condition that the Holder will provide the Registrant with such
    information with respect to the Holder's Registrable Securities, the plan
    for distribution thereof, and such other information with respect to the
    Holder as, in the

                                       4
<PAGE>
    reasonable judgment of counsel for the Registrant, is necessary to enable
    the Registrant to include in a registration statement all facts required to
    be disclosed with respect to a registration thereunder.

        (d) A registration effected under this Section 7 will be effected at the
    Registrant's expense, except for underwriting discounts and commissions and
    the fees and expenses of counsel to the Holder, and the Registrant will
    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, the Holder and the
    Registrant 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.

    (e)  INDEMNIFICATION.

           (i) The Registrant will indemnify the Holder, each of its directors
       and officers and each person who controls the Holder within the meaning
       of Section 15 of the Securities Act, and each underwriter of the
       Registrant's securities, with respect to any registration, qualification
       or compliance which has been effected pursuant to this Agreement, against
       all expenses, claims, losses, damages or liabilities (or actions in
       respect thereof), including any of the foregoing incurred in settlement
       of any litigation, commenced or threatened, arising out of or based on
       any untrue statement (or alleged untrue statement) of a material fact
       contained in any registration statement, prospectus, offering circular or
       other document, or any amendment or supplement thereto, incident to any
       such registration, qualification or compliance, or based on any omission
       (or alleged omission) to state therein a material fact required to be
       stated therein or necessary to make the statements therein, in light of
       the circumstances in which they were made, not misleading, or any
       violation by the Registrant of any rule or regulation promulgated under
       the Securities Act applicable to the Registrant in connection with any
       such registration, qualification or compliance, and the Registrant will
       reimburse the Holder, each of its directors and officers and each person
       who controls the Holder within the meaning of Section 15 of the
       Securities Act, and each underwriter for any legal and any other expenses
       reasonably incurred in connection with investigating, preparing or
       defending any such claim, loss, damage, liability or action; PROVIDED,
       that the Registrant will not be liable in any such case to the extent
       that any such claim, loss, damage, liability or expense arises out of or
       is based on any untrue statement or omission or alleged untrue statement
       or omission, made in reliance upon and in conformity with written
       information furnished to the Registrant by such Holder or director or
       officer or controlling person or underwriter seeking indemnification.

           (ii) The Holder will indemnify the Registrant, each of its directors
       and officers and each underwriter of the Registrant's securities covered
       by such registration statement and each person who controls the
       Registrant within the meaning of Section 15 of the Securities Act,
       against all expenses, claims, losses, damages and liabilities (or actions
       in respect thereof), including any of the foregoing incurred in
       settlement of any litigation, commenced or threatened, arising out of or
       based on any untrue statement (or alleged untrue statement) of a material
       fact contained in any such registration statement, prospectus, offering
       circular or other document, or any omission (or alleged omission) to
       state therein a material fact required to be stated therein or necessary
       to make the statements therein not misleading, or any violation by the
       Holder of any rule or regulation promulgated under the Securities Act
       applicable to the Holder in connection with any such registration,
       qualification or compliance, and will reimburse the Registrant, such
       directors, officers or control persons or underwriters for any legal or
       any other expenses reasonably incurred in connection with investigating,
       preparing or defending any such claim, loss, damage, liability or action,
       in each case to the extent, but only to the extent, that such untrue
       statement (or alleged untrue statement) or omission (or alleged omission)
       is made in such registration statement, prospectus, offering circular or
       other document in reliance upon and in conformity with

                                       5
<PAGE>
       written information furnished to the Registrant by the Holder for use
       therein; PROVIDED, that in no event will any indemnity under this
       Section 7(e) exceed the net proceeds of the offering received by the
       Holder.

          (iii) Each party entitled to indemnification under this Section 7(e)
       (the "INDEMNIFIED PARTY") will give notice to the party required to
       provide indemnification (the "INDEMNIFYING PARTY") promptly after such
       Indemnified Party has actual knowledge of any claim as to which indemnity
       may be sought, and will permit the Indemnifying Party to assume the
       defense of any such claim or any litigation resulting therefrom,
       PROVIDED, that counsel for the Indemnifying Party, who will conduct the
       defense of such claim or litigation, will be approved by the Indemnified
       Party (whose approval will not unreasonably be withheld), and the
       Indemnified Party may participate in such defense at such party's
       expense; PROVIDED, HOWEVER, that the Indemnifying Party will pay such
       expense if representation of the Indemnified Party by counsel retained by
       the Indemnifying Party would be inappropriate due to actual or potential
       differing interests between the Indemnified Party and any other party
       represented by such counsel in such proceeding, and PROVIDED FURTHER,
       HOWEVER, that the failure of any Indemnified Party to give notice as
       provided herein will not relieve the Indemnifying Party of its
       obligations under this Section 7(e) unless the failure to give such
       notice is materially prejudicial to an Indemnifying Party's ability to
       defend such action. No Indemnifying Party, in the defense of any such
       claim or litigation will, except with the consent of each Indemnified
       Party, consent to entry of any judgment or enter into any settlement
       which does not include as an unconditional term thereof the giving by the
       claimant or plaintiff to such Indemnified Party of a release from all
       liability in respect to such claim or litigation. No Indemnifying Party
       will be required to indemnify any Indemnified Party with respect to any
       settlement entered into without such Indemnifying Party's prior consent
       (which will not be unreasonably withheld).

    8.  ADJUSTMENT UPON CHANGES IN CAPITALIZATION; RIGHTS PLANS.

        (a) In the event of any change in the Company 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 Price will be adjusted appropriately, and proper provision will be
    made in the agreements governing such transaction so that Parent will
    receive, upon exercise of the Option, the number and class of shares or
    other securities or property that Parent would have received in respect of
    the Company 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), the Company
    will not amend (nor permit the amendment of) the Company Rights Plan nor
    adopt (nor permit the adoption of) a new stockholders rights plan, that
    contains provisions for the distribution or exercise of rights thereunder as
    a result of Parent or any affiliate or transferee being the beneficial owner
    of shares of the Company by virtue of the Option being exercisable or having
    been exercised (or as a result of beneficially owning shares issuable in
    respect of any Option Shares).

    9.  RESTRICTIVE LEGENDS.  Each certificate representing Option Shares issued
to Parent hereunder will 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

                                       6
<PAGE>
    REGISTRATION IS AVAILABLE. SUCH SECURITIES ARE ALSO SUBJECT TO ADDITIONAL
    RESTRICTIONS ON TRANSFER AS SET FORTH IN THE STOCK OPTION AGREEMENT DATED AS
    OF NOVEMBER 30, 1999, A COPY OF WHICH MAY BE OBTAINED FROM THE ISSUER.

    It is understood and agreed that (i) the reference to restrictions arising
under the Securities Act in the above legend will be removed by delivery of
substitute certificate(s) without such reference if such Option Shares have been
registered pursuant to the Securities Act, such Option Shares have been sold in
reliance on and in accordance with Rule 144 under the Securities Act or Holder
has delivered to Registrant a copy of a letter from the staff of the SEC, or an
opinion of counsel in form and substance reasonably satisfactory to Registrant
and its counsel, to the effect that such legend is not required for purposes of
the Securities Act and (ii) the reference to restrictions pursuant to this
Agreement in the above legend will be removed by delivery of substitute
certificate(s) without such reference if the Option Shares evidenced by
certificate(s) containing such reference have been sold or transferred in
compliance with the provisions of this Agreement under circumstances that do not
require the retention of such reference.

    10.  LISTING AND HSR FILING.  The Company, upon the request of Parent, will
promptly file an application to list the Company Shares to be acquired upon
exercise of the Option for quotation on the Nasdaq National Market and will use
its best efforts to obtain approval of such listing as soon as practicable.
Promptly after the date hereof, each of the parties hereto will 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 Company Shares subject to the Option at the
earliest possible date.

    11.  BINDING EFFECT.  This Agreement will 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 7 will, 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 will not be entitled to the rights of such party.
Certificates representing shares sold in a registered public offering pursuant
to Section 7 will not be required to bear the legend set forth in Section 9.

    12.  SPECIFIC PERFORMANCE.  The parties hereto 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 hereto agrees that in addition to
other remedies the other party hereto will be entitled to an injunction
restraining any violation or threatened violation of the provisions of this
Agreement or the right to enforce any of the covenants or agreements set forth
herein by specific performance. In the event that any action will be brought in
equity to enforce the provisions of the Agreement, neither party hereto will
allege, and each party hereto hereby waives the defense, that there is an
adequate remedy at law.

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

    14.  FURTHER ASSURANCES.  Each party hereto 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.

                                       7
<PAGE>
    15.  VALIDITY.  The invalidity or unenforceability of any provision of this
Agreement will not affect the validity or enforceability of the other provisions
of this Agreement, which will 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 will negotiate
in good faith and will 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.

    16.  NOTICES.  All notices and other communications hereunder will be in
writing and will 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 will be specified by like notice):

    (a) if to Parent, to:

        Informix Corporation
       4100 Bohannon Drive
       Menlo Park, California 94025
       Attention: Karen Blasing
       Telecopy No.: (650) 926-6091

        with a copy to:

        Wilson, Sonsini, Goodrich & Rosati, P.C.
       650 Page Mill Road
       Palo Alto, California 94304-1050
       Attention: Douglas H. Collom, Esq.
                 Michael J. Kennedy, Esq.
       Telecopy No.: (650) 493-6811

    (b) if to the Company, to:

        Ardent Software, Inc.
       50 Washington Street
       Westboro, Massachusetts
       Attention: General Counsel
       Telecopy No.: (508) 366-3888

        with a copy to:

        Choate, Hall & Stewart
       Exchange Place
       53 State Street
       Boston, Massachusetts 02109
       Attention: Richard Hoehn, Esq.
       Telecopy No.: (617) 248-4000

    17.  GOVERNING LAW.  This Agreement will 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.

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

    19.  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.

                                       8
<PAGE>
    20.  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
will inure to the benefit of and be binding upon any successor of a party
hereto.

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

    22.  EFFECT OF HEADINGS.  The section headings are for convenience only and
shall not affect the construction or interpretation of this Agreement.

                                       9
<PAGE>
    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.

<TABLE>
<S>                                                    <C>    <C>
                                                       INFORMIX CORPORATION

                                                       By:             /s/ JEAN-YVES DEXMIER
                                                              --------------------------------------
                                                       Name:             Jean-Yves Dexmier
                                                              --------------------------------------
                                                       Title:  President and Chief Executive Officer
                                                              --------------------------------------

                                                       ARDENT SOFTWARE, INC.

                                                       By:               /s/ PETER GYENES
                                                              --------------------------------------
                                                       Name:               Peter Gyenes
                                                              --------------------------------------
                                                       Title:       Chairman, President and CEO
                                                              --------------------------------------
</TABLE>

                   [SIGNATURE PAGE TO STOCK OPTION AGREEMENT]

                                       10

<PAGE>

                                  EXHIBIT 2.3
                            FORM OF VOTING AGREEMENT
<PAGE>
                                VOTING AGREEMENT

    THIS VOTING AGREEMENT (this "AGREEMENT") is made and entered into as of
November 30, 1999, among Informix Corporation, a Delaware corporation
("PARENT"), and the undersigned stockholder and/or option holder (the
"STOCKHOLDER") of Ardent Software, Inc., a Delaware corporation (the "COMPANY").

                                    RECITALS

    A. The Company, Merger Sub (as defined below) and Parent have entered into
an Agreement and Plan of Reorganization (the "REORGANIZATION AGREEMENT"), which
provides for the merger (the "MERGER") of a wholly-owned subsidiary of Parent
("MERGER SUB") with and into the Company. Pursuant to the Merger, all
outstanding capital stock of the Company shall be converted into the right to
receive common stock of Parent, as set forth in the Reorganization Agreement;

    B.  Stockholder is the beneficial owner (as defined in Rule 13d-3 under the
Securities Exchange Act of 1934, as amended (the "EXCHANGE ACT")) of such number
of shares of the outstanding capital stock of the Company and shares subject to
outstanding options and warrants as is indicated on the signature page of this
Agreement; and

    C.  In consideration of the execution of the Reorganization Agreement by
Parent, Stockholder (in his or her capacity as such) agrees to vote the Shares
(as defined below) and other such shares of capital stock of the Company over
which Stockholder has voting power so as to facilitate consummation of the
Merger.

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

    1.  CERTAIN DEFINITIONS.  Capitalized terms not defined herein shall have
the meanings ascribed to them in the Reorganization Agreement. For purposes of
this Agreement:

        (a)  "EXPIRATION DATE"  shall mean the earlier to occur of (i) such date
    and time as the Reorganization Agreement shall have been terminated pursuant
    to Article VII thereof, or (ii) such date and time as the Merger shall
    become effective in accordance with the terms and provisions of the
    Reorganization Agreement.

        (b)  "PERSON"  shall mean any (i) individual, (ii) corporation, limited
    liability company, partnership or other entity, or (iii) governmental
    authority.

        (c)  "SHARES"  shall mean: (i) all securities of the Company (including
    all shares of Company Common Stock and all options, warrants and other
    rights to acquire shares of Company Common Stock) owned by Stockholder as of
    the date of this Agreement; and (ii) all additional securities of the
    Company (including all additional shares of Company Common Stock and all
    additional options, warrants and other rights to acquire shares of Company
    Common Stock) of which Stockholder acquires ownership during the period from
    the date of this Agreement through the Expiration Date.

        (d)  TRANSFER.  A Person shall be deemed to have effected a "TRANSFER"
    of a security if such person directly or indirectly: (i) sells, pledges,
    encumbers, grants an option with respect to, transfers or disposes of such
    security or any interest in such security; or (ii) enters into an agreement
    or commitment providing for the sale of, pledge of, encumbrance of, grant of
    an option with respect to, transfer of or disposition of such security or
    any interest therein.

    2.  TRANSFER OF SHARES.

        (a)  TRANSFEREE OF SHARES TO BE BOUND BY THIS AGREEMENT.  Stockholder
    agrees that, during the period from the date of this Agreement through the
    Expiration Date, Stockholder shall not cause or permit any Transfer of any
    of the Shares to be effected unless such Transfer is in accordance with any
    affiliate agreement between Stockholder and Parent contemplated by the
    Reorganization Agreement.

                                       1
<PAGE>
        (b)  TRANSFER OF VOTING RIGHTS.  Stockholder agrees that, during the
    period from the date of this Agreement through the Expiration Date,
    Stockholder shall not deposit (or permit the deposit of) any Shares in a
    voting trust or grant any proxy or enter into any voting agreement or
    similar agreement in contravention of the obligations of Stockholder under
    this Agreement with respect to any of the Shares.

    3.  AGREEMENT TO VOTE SHARES.  At every meeting of the stockholders of the
Company called, and at every adjournment thereof, and on every action or
approval by written consent of the stockholders of the Company, Stockholder (in
his or her capacity as such) shall cause the Shares to be voted in favor of
approval of the Reorganization Agreement and the Merger and in favor of any
matter that could reasonably be expected to facilitate the Merger.

    4.  IRREVOCABLE PROXY.  Concurrently with the execution of this Agreement,
Stockholder agrees to deliver to Parent a proxy in the form attached hereto as
EXHIBIT A (the "PROXY"), which shall be irrevocable to the fullest extent
permissible by law, with respect to the Shares.

    5.  REPRESENTATIONS AND WARRANTIES OF THE STOCKHOLDER.  Stockholder (i) is
the beneficial owner of the shares of Company Common Stock and the options and
warrants to purchase shares of Common Stock of the Company indicated on the
final page of this Agreement, free and clear of any liens, claims, options,
rights of first refusal, co-sale rights, charges or other encumbrances;
(ii) does not beneficially own any securities of the Company other than the
shares of Company Common Stock and options and warrants to purchase shares of
Common Stock of the Company indicated on the final page of this Agreement; and
(iii) has full power and authority to make, enter into and carry out the terms
of this Agreement and the Proxy.

    6.  ADDITIONAL DOCUMENTS.  Stockholder (in his or her capacity as such)
hereby covenants and agrees to execute and deliver any additional documents
necessary or desirable, in the reasonable opinion of Parent, to carry out the
intent of this Agreement.

    7.  CONSENT AND WAIVER.  Stockholder (not in his capacity as a director or
officer of the Company) hereby gives any consents or waivers that are reasonably
required for the consummation of the Merger under the terms of any agreements to
which Stockholder is a party or pursuant to any rights Stockholder may have.

    8.  LEGENDING OF SHARES.  If so requested by Parent, Stockholder agrees that
the Shares shall bear a legend stating that they are subject to this Agreement
and to an irrevocable proxy. Subject to the terms of Section 2 hereof,
Stockholder agrees that Stockholder shall not Transfer the Shares without first
having the aforementioned legend affixed to the certificates representing the
Shares.

    9.  TERMINATION.  This Agreement shall terminate and shall have no further
force or effect as of the Expiration Date.

    10.  MISCELLANEOUS.

        (a)  SEVERABILITY.  If any term, provision, covenant or restriction of
    this Agreement is held by a court of competent jurisdiction to be invalid,
    void or unenforceable, then the remainder of the terms, provisions,
    covenants and restrictions of this Agreement shall remain in full force and
    effect and shall in no way be affected, impaired or invalidated.

        (b)  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.

                                       2
<PAGE>
        (c)  AMENDMENTS AND 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.

        (d)  SPECIFIC PERFORMANCE; INJUNCTIVE RELIEF.  The parties hereto
    acknowledge that Parent shall be irreparably harmed and that there shall be
    no adequate remedy at law for a violation of any of the covenants or
    agreements of Stockholder set forth herein. Therefore, it is agreed that, in
    addition to any other remedies that may be available to Parent upon any such
    violation, Parent shall have the right to enforce such covenants and
    agreements by specific performance, injunctive relief or by any other means
    available to Parent at law or in equity.

        (e)  NOTICES.  All notices and other communications pursuant to this
    Agreement shall be in writing and deemed to be sufficient if contained in a
    written instrument and shall be deemed given if delivered personally,
    telecopied, sent by nationally-recognized overnight courier or mailed by
    registered or certified mail (return receipt requested), postage prepaid, to
    the parties at the following address (or at such other address for a party
    as shall be specified by like notice):

<TABLE>
<C>                                            <S>
                                If to Parent:  Informix Corporation
                                               4100 Bohannon Drive
                                               Menlo Park, California 94025
                                               Attention: Scott Harlan, Esq.
                                               Telecopy No.: (650) 926-6091

                              With a copy to:  Wilson Sonsini Goodrich & Rosati
                                               Professional Corporation
                                               650 Page Mill Road
                                               Palo Alto, California 94304
                                               Attention:  Douglas H. Collom, Esq.
                                                         Michael J. Kennedy, Esq.
                                               Telecopy No.: (650) 493-6811

                           If to Stockholder:  To the address for notice set forth on the
                                               signature page hereof.
</TABLE>

        (f)  GOVERNING LAW.  This Agreement shall be governed by the laws of the
    State of Delaware, without reference to rules of conflicts of law.

        (g)  ENTIRE AGREEMENT.  This Agreement and the Proxy contain the entire
    understanding of the parties in respect of the subject matter hereof, and
    supersede all prior negotiations and understandings between the parties with
    respect to such subject matter.

        (h)  EFFECT OF HEADINGS.  The section headings are for convenience only
    and shall not affect the construction or interpretation of this Agreement.

        (i)  COUNTERPARTS.  This Agreement may be executed in several
    counterparts, each of which shall be an original, but all of which together
    shall constitute one and the same agreement.

           [The remainder of this page has been intentionally left blank]

                                       3
<PAGE>
    IN WITNESS WHEREOF, the parties have caused this Agreement to be duly
executed on the day and year first above written.

<TABLE>
<S>                                              <C>
Informix Corporation                             Stockholder

                                                 By:
                                                 Signature
By:

Name:                                            Name:

Title:                                           Title:

                                                 Print Address

                                                 Telephone

                                                 Facsimile No.

                                                 Shares beneficially owned:

                                                 shares of Company Common Stock

                                                 shares of Company Common Stock issuable upon
                                                 exercise of outstanding options or warrants
</TABLE>

                      [SIGNATURE PAGE TO VOTING AGREEMENT]

                                       4
<PAGE>
                               IRREVOCABLE PROXY

    The undersigned stockholder of Ardent Software, Inc., a Delaware corporation
(the "COMPANY"), hereby irrevocably (to the fullest extent permitted by law)
appoints the directors on the Board of Directors of Informix Corporation, a
Delaware corporation ("PARENT"), and each of them, as the sole and exclusive
attorneys and proxies of the undersigned, with full power of substitution and
resubstitution, to vote and exercise all voting and related rights (to the full
extent that the undersigned is entitled to do so) with respect to all of the
shares of capital stock of the Company that now are or hereafter may be
beneficially owned by the undersigned, and any and all other shares or
securities of the Company issued or issuable in respect thereof on or after the
date hereof (collectively, the "SHARES") in accordance with the terms of this
Proxy. The Shares beneficially owned by the undersigned stockholder of the
Company as of the date of this Proxy are listed on the final page of this Proxy.
Upon the undersigned's execution of this Proxy, any and all prior proxies given
by the undersigned with respect to any Shares are hereby revoked and the
undersigned agrees not to grant any subsequent proxies with respect to the
Shares until after the Expiration Date (as defined below).

    This Proxy is irrevocable (to the fullest extent permitted by law), is
coupled with an interest and is granted pursuant to that certain Voting
Agreement of even date herewith by and among Parent and the undersigned
stockholder (the "VOTING AGREEMENT"), and is granted in consideration of Parent
entering into that certain Agreement and Plan of Reorganization (the
"REORGANIZATION AGREEMENT"), among Parent, Iroquois Acquisition Corporation, a
Delaware corporation and a wholly-owned subsidiary of Parent ("MERGER SUB"), and
the Company. The Reorganization Agreement provides for the merger of Merger Sub
with and into the Company in accordance with its terms (the "MERGER"). As used
herein, the term "EXPIRATION DATE" shall mean the earlier to occur of (i) such
date and time as the Reorganization Agreement shall have been validly terminated
pursuant to Article VII thereof or (ii) such date and time as the Merger shall
become effective in accordance with the terms and provisions of the
Reorganization Agreement.

    The attorneys and proxies named above, and each of them, are hereby
authorized and empowered by the undersigned, at any time prior to the Expiration
Date, to act as the undersigned's attorney and proxy to vote the Shares, and to
exercise all voting, consent and similar rights of the undersigned with respect
to the Shares (including, without limitation, the power to execute and deliver
written consents) at every annual, special or adjourned meeting of stockholders
of the Company and in every written consent in lieu of such meeting in favor of
approval of the Merger, the execution and delivery by the Company of the
Reorganization Agreement and the adoption and approval of the terms thereof and
in favor of each of the other actions contemplated by the Reorganization
Agreement and any action required in furtherance hereof and thereof.

    The attorneys and proxies named above may not exercise this Proxy on any
other matter except as provided above. 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.

                                       5
<PAGE>
    This Proxy is irrevocable (to the fullest extent permitted by law). This
Proxy shall terminate, and be of no further force and effect, automatically upon
the Expiration Date.

Dated: ____________, 1999

                                          Signature of Stockholder:  ___________
                                          Print Name of Stockholder:  __________
                                          Shares beneficially owned:
                                          _________shares of the Company Common
                                          Stock
                                          _________shares of the Company Common
                                          Stock issuable upon exercise of
                                          outstanding options or warrants

                     [SIGNATURE PAGE TO IRREVOCABLE PROXY]

                                       6


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