Document:

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                                                                   EXHIBIT 10.20

                        SCHEDULE OF INVESTOR'S AGREEMENTS

1)       Investor's Agreement by and between Factory Automation & Computer
         Technologies, Inc. and Warburg, Pincus Investors, L.P. dated as of
         September 19, 1995.

2)       Investor's Agreement by and between Factory Automation & Computer
         Technologies, Inc. and Warburg, Pincus Investors, L.P. dated as of
         November 5, 1996.

3)       Investor's Agreement by and between Factory Automation & Computer
         Technologies, Inc. and Warburg, Pincus Investors, L.P. dated as of
         December 9, 1996.

4)       Investor's Agreement by and between SynQuest, Inc. and Warburg, Pincus
         Investors, L.P. dated as of February 17, 1997.

5)       Investor's Agreement by and between SynQuest, Inc. and Warburg, Pincus
         Investors, L.P. dated as of April 15, 1997.

6)       Investor's Agreement by and between SynQuest, Inc. and Warburg, Pincus
         Investors, L.P. dated as of May 20, 1997.

7)       Investor's Agreement by and between SynQuest, Inc. and Warburg, Pincus
         Investors, L.P. dated as of July 20, 1997.

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                                 SYNQUEST, INC.

                              Investor's Agreement

                  This Investor's Agreement (this "Agreement") is entered into
as of [Date], by and among SynQuest, Inc., a Georgia corporation (the
"Company"), and _______________ (the "Investor").

                  In consideration of the mutual promises, representations,
warranties, covenants and conditions set forth in this Agreement, the Company
and the Investor mutually agree as follows:

                  1.       $ Investment.

                  1.1      Stock Purchase Warrant and Subordinated Promissory
Note. Subject to the terms and conditions of this Agreement, at the Closing (as
defined in Section 1.2 hereof), the Company agrees to issue and deliver to the
Investor (i) a Subordinated Promissory Note in favor of the Investor executed by
the Company in the form of Exhibit 1.1(i) hereto (the "Note") in the amount of
___ Dollars ($___) and bearing interest at the Prime Rate, as defined therein,
plus two percent per annum, and (ii) the Stock Purchase Warrant in favor of the
Investor executed by the Company in the form of Exhibit 1.1(ii) hereto (the
"Warrant") for the purchase of up to ______shares of Common Stock of the
Company. In consideration of the issuance and delivery of the Note and the
Warrant, the Investor shall deliver to the Company a certified check or
cashier's check, or immediately make available funds by wire transfer to an
account designated by the Company, in the amount of _____ Dollars ($____) (the
"Funding").

                  1.2      Closing. The issuance and delivery of the Warrant and
the Note by the Company, and the advance of the Funding by the Investor, shall
take place at the offices of [Investor's Office], effective as of the date of
this Agreement.

                  2.       Representations and Warranties of the Company.

                  The Company represents and warrants to the Investor that:

                  2.1      Authorization. The Company has all requisite
corporate power and authority to execute, deliver and perform this Agreement.
All corporate action on the part of the Company and its officers, directors and
stockholders necessary for the Company's authorization, execution, delivery and
performance of all obligations of the Company under this Agreement has

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been or taken. This Agreement constituted a legal, valid and binding obligation
of the Company, enforceable against the Company in accordance with its terms.

                  2.2      Validity of Stock. The shares of Common Stock that
will be issued to the Investor upon exercise of the warrants (the "Shares") will
be duly authorized and, when issued shall be duly and validly issued, fully paid
and nonassessable with no personal liability attaching to the ownership thereof,
and will be free and clear of all liens, charges, restrictions, claims and
encumbrances imposed by or through the Company.

                  2.3      Governmental Consents. All consents, approvals,
orders or authorizations of, or registrations, qualifications, designations or
filings with any federal or state governmental authority on the part of the
Company required in connection with the consummation of the transactions
contemplated by this Agreement shall have been obtained prior to, and be
effective as of, the effective date of this Agreement except that any notices of
sale required to be filed with the Securities and Exchange Commission ("SEC")
pursuant to Regulation D promulgated under the Securities Act of 1933, as
amended (the "Act"), or any state securities law authority pursuant to
applicable blue sky laws may be filed within the applicable periods therefor.

                  2.4      Compliance with Other Instruments. The Company will
not, as of the effective date of this Agreement, be in violation of any
provisions of its By-Laws, each as in effect as of such date, or in any material
respect of any provision of any indenture, instrument or contract to which it is
a party, or of any provision of any federal or state judgment, writ, decree,
order, statute, rule or governmental regulation applicable to the Company. The
execution, delivery and performance of this Agreement and the Shares, or either
of them, will not result in any such violation or be in conflict with or
constitute a default under any such provision, or result in the creation or
imposition of any lien, charge, restriction, claim or encumbrance of any nature
whatsoever upon any of the properties or assets of the Company.

                  2.5      Private Sale. Neither the Company nor any person
authorized or employed by the Company as an agent, broker, dealer or otherwise
has sold or offered any of the Common Stock to be authorized by the Company or
other securities of the Company or has solicited any offers to buy any of such
Common Stock or other securities of the Company from, or otherwise negotiated or
sought to negotiate in respect thereof with, any person, firm or corporation, or
will take any other action (including, without limitation, any offer, issuance
or sale of any security of the Company under circumstances that might require
the integration of the offer or sale of such security with the offer or sale of
the Common Stock under the Act or the rules and regulations of the SEC
thereunder), so as to bring the issuance and delivery of the Common Stock under
the circumstances contemplated by this Agreement, within the provisions of
Section 5 of the Act. The issuance and delivery of the Common Stock will be
exempt from the registration requirements of the Act and any applicable state
securities laws.

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                  3.       Representations and Warranties of the Investor. The
Investor represents and warrants to the Company, that:

                  3.1      Authorization. All action on the part of the Investor
necessary for the Investor's authorization, execution, delivery and performance
of all obligations of the Investor under this Agreement has been taken. This
Agreement shall constitute a legal, valid and binding obligation of the
Investor, enforceable against the Investor in accordance with its terms.

                  3.2      Compliance with Other Instruments. The execution,
delivery and performance of this Agreement by the Investor will not conflict
with or result in a violation of any provision of the Investor's limited
partnership agreement or certificate of limited partnership, each as amended to
date.

                  3.3      Investment Representations.

                  3.3.1    This Agreement is made with the Investor in reliance
upon the Investor's representation to the Company, which by the acceptance
hereof the Investor hereby confirms, that the Shares will be acquired for
investment for its own account, not as a nominee or agent, and not with a view
to the sale or distribution of all or any part thereof absent the registration
of such Shares under the Act and any applicable state securities laws, or
pursuant to a valid exemption from such registration requirements, and the
Investor has no present intention of selling, granting, participation in, or
otherwise distributing the same. By executing this Agreement, the Investor
further represents that it does not have any contract, undertaking, agreement or
arrangement with any person to sell, transfer or grant participation to such
person, or to any third person, with respect to any of the Shares.

                  3.3.2    The Investor understands that at the time of
issuance, the Shares may not be registered under the Act on the ground that the
sale provided for in this Agreement and the issuance of the Shares hereunder is
being made in reliance upon an exemption from the registration requirements of
the Act pursuant to Section 4(2) thereof as a transaction by an issuer not
involving a public offering or pursuant to Section 3(b) thereof, and is
similarly exempt under any other applicable state securities laws, and that the
Company's reliance on such exemption is predicated on the Investor's
representations as set forth herein.

                  3.3.3    The Investor represents that it is experienced in
evaluating and investing in private companies such as the Company, is able to
fend for itself in the transactions contemplated by this Agreement, has such
knowledge and experience in financial and business matters as to be capable of
evaluating the merits and risks of its investment, and has the ability to bear
the economic risks of its investment. The Investor further represents that it
has had access, during the course of the transaction and prior to the issuance
of the Shares, to information concerning the Company and that it has had during
the course of the transaction and prior to the issuance of the Shares, the
opportunity to ask questions of, and receive answers from, the Company
concerning the terms and conditions of the offering and the Company's business,

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management and financial affairs, and to obtain additional information (to the
extent the Company possessed such information or could acquire it without
unreasonable effort or expense) necessary to verify the accuracy of any
information furnished to it or to which had access.

                  3.3.4    The Investor represents that it is an "accredited
investor" as defined in Rule 501 of Regulation D promulgated under the Act.

                  3.3.5    The Investor understands that the Shares may not be
sold, transferred or otherwise disposed of without registration under the Act
and any applicable state securities laws absent an exemption therefrom, and that
in the absence of an effective registration statement covering the Shares or an
available exemption from registration under the Act and any applicable state
securities laws, the Shares must be held indefinitely. In particular, the
Investor is aware that the Shares may not be sold pursuant to Rule 144
promulgated under the Act unless all the conditions of that Rule are met. Among
the conditions for use of Rule 144 may be the availability of current and
adequate information to the public about the Company. Such information is not
now available and the Company has no current plans to make such information
available.

                  3.3.6    The Investor agrees that in no event will it sell,
transfer or otherwise dispose of any of the Shares (other than pursuant to an
effective registration statement under the Act and any applicable state
securities laws), unless and until it or its proposed transferee shall have
furnished to the Company an opinion, reasonably satisfactory to the Company, of
counsel reasonably satisfactory to the Company, prepared at the expense of the
Investor or its proposed transferee, to the effect that such transfer may be
made without registration under the Act and all applicable state securities
laws.

                  3.4      Legends.

                  3.4.1    All documents and certificates evidencing the Shares
shall bear a legend substantially to the following effect until the same is no
longer required under the Act:

           THESE SHARES OF COMMON STOCK HAVE NOT BEEN REGISTERED UNDER THE
           SECURITIES ACT OF 1933, AS AMENDED, OR ANY APPLICABLE STATE
           SECURITIES LAWS AND TRANSFERRED, NOR WILL ANY ASSIGNEE OR ENDORSEE
           HEREOF BE RECOGNIZED AS AN OWNER OR HOLDER HEREOF BY THE COMPANY FOR
           ANY PURPOSE UNLESS A REGISTRATION STATEMENT UNDER THE SECURITIES ACT
           OF 1933, AS AMENDED, AND ANY APPLICABLE STATE SECURITIES LAWS
           APPLICABLE TO THESE SHARES OF COMMON STOCK SHALL THEN BE IN EFFECT OR
           UNLESS THE AVAILABILITY OF AN EXEMPTION FROM REGISTRATION WITH
           RESPECT TO ANY PROPOSED TRANSFER OR DISPOSITION OF THESE SHARES OF
           COMMON STOCK SHALL BE ESTABLISHED IN AN OPINION OF COUNSEL
           SATISFACTORY TO THE COMPANY THAT SUCH REGISTRATION IS NOT REQUIRED.

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                  3.4.2    The documents and certificates evidencing the Shares
shall also bear any legend required by any applicable state securities law.

                  4.       Miscellaneous.

                  4.1      Survival of Representations and Warranties. The
representations and warranties of the parties shall survive the effective date
of the issuance of the Shares.

                  4.2      Entire Agreement. This Agreement and the documents
referred to herein constitute the entire agreement among the parties and
supersede all prior communications, representations, understandings and
agreements of the parties with respect to the subject matter hereof and thereof,
and no party shall be liable or bound to any other party in any manner by any
warranties, representations or covenants except as specifically set forth herein
or therein. Nothing in this Agreement, express or implied, is intended to confer
upon any third party any rights, remedies, obligations or liabilities under or
by reason of this Agreement, except as expressly provided in this Agreement.

                  4.3      Governing, Law. This Agreement shall be governed by
and construed under the laws of the State of Georgia, as it applies to a
contract executed, delivered and performed in the State of Georgia.

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

                  4.5      Titles and Subtitles. The titles and subtitles used
in this Agreement are used for convenience only and are not to be considered in
construing or interpreting this Agreement.

                  4.6      Notices. Any notice required or permitted under this
Agreement shall be given in writing and shall be deemed effectively given upon
personal delivery, upon transmission thereof if sent by facsimile transmission,
on the second business day after delivered to an air courier company for express
delivery or on the seventh business day after deposit with the United States
Post Office, by registered or certified mail, postage prepaid, addressed as
follows:

                           INVESTOR
                           [Investor's name, address, fax number and contact
                           person]

                           COMPANY

                           SynQuest, Inc.
                           3500 Parkway Lane, Suite 555
                           Norcross, Georgia  30092
                           Facsimile: (404) 447-4995
                           Attention: Joseph Trino

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Any party may designate a new address by five days advance written notice to the
other party.

                  4.7      Finders' Fees. Each party hereto represents that it
neither is, nor will be, obligated for any finders' fee or commission in
connection with this transaction.

                  4.8      Expenses. The Company and the Investor shall pay all
costs and expenses that they incur with respect to the negotiation, execution
and delivery of this Agreement and the transactions contemplated hereby.

                  4.9      Amendments and Waivers. Any term of this Agreement
may be amended and the observance of any term of this Agreement may be waived
(either generally or in a particular instance and either retroactively or
prospectively), with the written consent of the Company and the Investor.

                  4.10     Successors and Assigns. This Agreement shall inure to
the benefit of and be binding upon the successors and assigns of each of the
parties hereto. Except to the extent otherwise provided for herein, neither this
Agreement nor the rights of the parties hereunder may be assigned without the
written consent of the non-assigning party.

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

                                                     SYNQUEST, INC.

                                                     By:
                                                        ------------------------
                                                     Joseph Trino
                                                     Chief Executive Officer

                                                     [INVESTOR]

                                                     By:
                                                        ------------------------
                                                     Name
                                                     Position

                                       8<PAGE>   1
                                                                   EXHIBIT 10.21

                              INVESTORS' AGREEMENT

         THIS AGREEMENT, effective as of this 23rd day of February, 1996, is
made by and among LAURENT MARTINEAU, CLAUDE MARTINEAU, PIERRE-ANDRE DUBREUIL,
BERTRAND RENAUD, individual residents of France, SEAFORTH LYLE, an individual
resident of the United States, ABR EUROPE S.A. and A.D.I.S.A., corporations
formed under the laws of France (individually and collectively referred to as
"Sellers"), FACTORY AUTOMATION & COMPUTER TECHNOLOGIES, INC., a corporation
formed under the laws of the State of New York ("Buyer") and WARBURG, PINCUS
INVESTORS, L.P., a Delaware limited partnership ("Warburg").

         In consideration of the mutual promises, representations, warranties
and conditions set forth in this Agreement, Sellers and Buyer mutually agree as
follows:

                  ARTICLE I.        DEFINITIONS.

         Capitalized terms used herein and not otherwise defined shall have the
meaning set forth in the Stock Purchase Agreement (the "Purchase Agreement"),
executed contemporaneously herewith, among Sellers and Buyer.

                  ARTICLE II.       INVESTMENT REPRESENTATIONS.

         (a)      Each Seller, except Seaforth Lyle, represents and warrants to
Buyer that such Seller is not a U.S. person and is not acquiring the Buyer
Shares for the account or benefit of any U.S. person.

         (b)      Seaforth Lyle represents and warrants to Buyer that he is a
U.S. resident and is not acquiring the Buyer Shares for the account or benefit
of any other U.S. person.

         (c)      Each Seller represents and warrants to Buyer that such Seller
is acquiring the Buyer Shares for investment purposes only and for such Seller's
own account (i.e., with the intent of holding the Buyer Shares for investment
and without the intent of participating directly or indirectly in a distribution
of such Buyer Shares). By execution of this Agreement, each Seller represents
and warrants to Buyer that such Seller has no agreement, contract or
understanding with any person or entity to sell, transfer, or grant rights in
any of the Buyer Shares.

         (d)      Each Seller acknowledges and agrees that the Buyer Shares to
be acquired by such Seller may not be offered for sale, hypothecated, sold,
transferred or otherwise disposed of, unless such shares are transferred (i) in
accordance with Regulation S of the Securities Act of 1933 (the "Securities
Act"), (ii) pursuant to registration under the Securities Act, or (iii) pursuant
to an available exemption from registration.

         (e)      Each Seller represents and warrants to Buyer that such Seller
has such knowledge, skill and experience in business and financial matters,
based on actual participation, that such Seller is capable of evaluating the
merits and risks of such investment in Buyer and the suitability thereof as an
investment for such Seller, has sufficient net worth to sustain a loss of all

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of such Seller's interest in the Buyer Shares, without economic hardship if such
a loss should occur and can bear the economic risk of such Seller's investment
in Buyer Shares, understands that an investment in the Buyer Shares is
speculative and involves a high degree of risk of loss by such Seller, has
received such documents and information as such Seller has requested and has had
an opportunity to ask questions of and receive satisfactory answers from Buyer
concerning the terms and conditions of the investment in the Buyer Shares
contemplated under the Purchase Agreement, and based thereon believes that it
can make an informed investment decision, and as not formed for the specific
purpose of making an investment in the Buyer Shares.

         (f)      Each Seller represents and warrants that such Seller
understands that such Seller must bear the economic risk of such Seller's
investment in the Buyer Shares for an indefinite period of time because the
Buyer Shares are not registered under the Securities Act or any state securities
laws and may not be sold unless subsequently registered under the Securities Act
and any applicable state securities laws or unless an exemption from such
registration is available. Each Seller agrees that such Seller will not attempt
to pledge, transfer, convey or otherwise dispose of such Seller's Buyer Shares,
except in a transaction that is the subject of either (i) an effective
registration statement under the Securities Act and any applicable state
securities laws, or (ii) an opinion of counsel, which opinion and counsel shall
be satisfactory Buyer, to the effect that such registration is not required.
Buyer may rely on such an opinion of counsel in making such determination. Each
Seller understands that no public market now exists, or may ever exist, for the
Buyer Shares.

         (g)      Each Seller acknowledges that it has had the opportunity to
ask questions of Buyer's officers with respect to the terms and conditions of
the offering of the Buyer Shares and the business and financial condition of
Buyer.

                  ARTICLE III.      RESTRICTIVE LEGEND AND NOTICE OF PROPOSED
                                    TRANSFER.

         (a)      Restrictive Legend. Each certificate representing the Buyer
Shares and each certificate issued upon exchange or transfer of the Buyer Shares
shall be stamped or otherwise imprinted with a legend substantially in the
following form:

"THE SHARES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED UNDER ANY
STATE SECURITIES LAW OR THE SECURITIES ACT OF 1933, AS AMENDED (THE "FEDERAL
ACT"). THESE SHARES HAVE BEEN ACQUIRED FOR INVESTMENT AND MAY NOT BE OFFERED FOR
SALE, HYPOTHECATED, SOLD, TRANSFERRED OR OTHERWISE DISPOSED OF, NOR WILL ANY
ASSIGNEE OR TRANSFEREE THEREOF BE RECOGNIZED BY THE CORPORATION AS HAVING ANY
INTEREST IN SUCH SHARES, UNLESS SUCH SHARES ARE TRANSFERRED IN ACCORDANCE WITH
REGULATION S OF THE FEDERAL ACT OR ARE THE SUBJECT OF (I) AN EFFECTIVE
REGISTRATION STATEMENT WITH RESPECT TO THE SHARES UNDER THE FEDERAL ACT AND ANY
APPLICABLE STATE SECURITIES LAW OR (II) AN OPINION OF COUNSEL, WHICH OPINION AND
COUNSEL SHALL BE SATISFACTORY TO THE CORPORATION, TO THE EFFECT THAT THE
TRANSACTION BY WHICH SUCH SHARES WILL BE OFFERED FOR SALE, HYPOTHECATED, SOLD,
TRANSFERRED OR OTHERWISE DISPOSED OF IS EXEMPT FROM THE

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REGISTRATION REQUIREMENTS OF SUCH ACTS OR IS OTHERWISE IN COMPLIANCE WITH THE
REGISTRATION REQUIREMENTS OF SUCH ACTS."

         (b)      Notice of Proposed Transfer. Prior to any proposed transfer of
any Buyer Shares by any Seller, such Holder (as hereinafter defined) thereof
shall give written notice to Buyer of its intention to effect such transfer.
Each such notice shall describe the manner of the proposed transfer and, if
requested by Buyer, shall be accompanied by an opinion of counsel reasonably
satisfactory to Buyer to the effect that the proposed transfer of the Buyer
Shares may be effected without registration under the Securities Act or under
any applicable blue sky or state securities laws, whereupon the Holder of such
shares shall be entitled to transfer such Buyer Shares in accordance with the
terms of its notice; provided, however, that Buyer agrees not to request such an
opinion of counsel for a transfer by any Seller to an "affiliate" of such Seller
so long as such transferee makes representations and warranties to Buyer
substantially in the form of those contained in Article II hereof. The term
"affiliate" shall have the meaning set forth in the rules and regulations
promulgated under the Securities Act. Each certificate for Buyer Shares
transferred as above provided shall bear the legend set forth in Article III,
except that such certificate shall not bear such legend if (i) such transfer is
in accordance with the provisions of Rule 144 (or any other rule permitting
public sale without registration under the Securities Act) or (ii) the opinion
of counsel referred to above is to the further effect that the transferee and
any subsequent transferee (other than an affiliate of Buyer) would be entitled
to transfer such securities in a public sale without registration under the
Securities Act. For purposes of this Article III, the term "Holder" shall mean
any holder of shares of Buyer Shares.

                  ARTICLE IV.       RIGHT OF FIRST REFUSAL.

         Each Seller agrees that such Seller will not, directly or indirectly,
transfer any of the Buyer Shares owned by such Seller unless in each such
instance such Seller shall have first made the offers to sell to Buyer and
Warburg contemplated by this Article IV, and such offers shall not have been
accepted. Notwithstanding the foregoing, the provisions of this Article IV shall
not apply to a transfer of Buyer Shares by a Seller to any member of such
Seller's immediate family, provided that such transferee agrees, in writing, to
be bound by the provisions of this Agreement as if he or she were such Seller.

         (a)      Offer Transfer. Copies of each Seller's offer to transfer
shall be given to Buyer and to Warburg and shall consist of an offer to sell to
Buyer or, failing its election to purchase, then an offer to sell to Warburg,
all of the shares then proposed to be transferred by such Seller (the "Subject
Shares") pursuant to a bona fide offer of a third party, the name and address of
the prospective third party transferee, the number of shares involved in the
proposed transfer, and terms of such transfer. If Buyer shall not elect to
purchase the Subject Shares or is legally unable to do so, Buyer shall forthwith
so notify Warburg, whereupon Warburg shall have the right to purchase such
Subject Shares.

         (b)      Acceptance of Offer. Within 10 business days after the receipt
of the offer described in subsection (a) above, Buyer may, at its option, elect
to purchase all, but not less than all, of the Subject Shares. Buyer shall
exercise such option by giving notice thereof to a Seller and to Warburg within
such 10 business day period. In the event that Buyer does not exercise its
option to purchase, Warburg may exercise its option to purchase by giving notice
thereof to a Seller and to Buyer within 10 business days after receipt of notice
from Buyer in accordance

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with subsection (a) above to the effect that Buyer did not exercise its option
to purchase. In either event, the notice required to be given by the purchasing
party shall specify a date for the closing of the purchase which shall not be
more than 20 business days after the date of the giving of such notice or within
20 business days after the conclusion of an appraisal procedure conducted
pursuant to subsection (e) below.

         (c)      Purchase Price. The purchase price per share for the Subject
Shares shall be the price per share offered to be paid by the prospective
transferee described in the offer, which price shall be paid in cash or, if so
provided in the offer of the prospective transferee, cash plus deferred payments
of cash, in the same proportions, and with the same terms of deferred payment,
as therein set forth.

         (d)      Consideration Other Than Cash. If the offer of Subject Shares
under this Article IV is for consideration other than cash or cash plus deferred
payments of cash, Warburg or Buyer shall pay the cash equivalent of such other
consideration. If a Seller and Warburg or Buyer cannot agree on the amount of
such cash equivalent within 10 business days after the beginning of the 20
business day period under subsection (b), any of such parties may, by 3 business
days' written notice to the other, initiate appraisal proceedings under
subsection (e) for determination of the cash equivalent. Buyer or Warburg may
give notice to a Seller revoking an election to purchase the Subject Shares
within 10 days after determination of the appraised value, if it chooses not to
purchase the Subject Shares. The other purchasing party shall then have 10
business days in which to elect to purchase the Subject Shares not purchased
because of such revocation.

         (e)      Appraisal Procedure. If any party shall initiate an appraisal
procedure to determine the amount of the cash equivalent of any consideration
for Subject Shares under subsection (d), then the Seller, on the one hand, and
Buyer or Warburg, on the other hand, shall each promptly appoint as an appraiser
an individual who shall be a member of a nationally recognized investment
banking firm. Each appraiser shall, within 20 business days of appointment,
separately investigate the value of the consideration for the Subject Shares as
of the proposed transfer date and shall submit a notice of an appraisal of that
value to each party. Each appraiser shall be instructed to determine such value
by taking into account reasonably quantifiable tax benefits, if any, to the
Seller associated with such Seller receiving other consideration rather than
cash. If the appraised values of such consideration (the "Earlier Appraisals")
vary by less than 10%, the average of the two appraisals on a per share basis
shall be controlling as the amount of the cash equivalent. If the appraised
values vary by more than 10%, the appraisers, within 10 business days of the
submission of the last appraisal, shall appoint a third appraiser who shall be
member of a nationally recognized investment banking firm. The third appraiser
shall, within 20 business days of his appointment, appraise the value of the
consideration for the Subject Shares as of the proposed transfer date and submit
notice of his appraisal to each party. The value determined by the third
appraiser shall be controlling as the amount of the cash equivalent unless that
value is greater than the two Earlier Appraisals, in which case the higher of
the two Earlier Appraisals will control. If the value determined by the third
appraiser is less than the two Earlier Appraisals, the lower of the two Earlier
Appraisals will control. If any party fails to appoint an appraiser or if one of
the two initial appraisers fails after appointment to submit his appraisal
within the required period, the appraisal submitted by the remaining appraiser
shall be controlling. The cost of the first appraisal initiated under

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<PAGE>   5

subsection (d) with respect to any Seller shall be paid by Buyer. Thereafter,
the cost of any such appraisals shall be shared one-half by the Seller and
one-half by Warburg or Buyer depending on who initiated the appraisal procedure.

         (f)      Closing of Purchase. The closing of the purchase shall take
place on the closing date stated in the purchase notice pursuant to subsection
(b) hereof, at the office of Buyer or such other location or date as shall be
mutually agreeable and the purchase price, to the extent comprised of cash,
shall be paid at the closing, and cash equivalents and documents evidencing any
deferred payments of cash permitted pursuant to subsection (c) above shall be
delivered at the closing. At the closing, a Seller shall deliver to the
purchaser of the Subject Shares the certificates evidencing the Subject Shares
to be conveyed, duly endorsed or accompanied by a duly executed separate stock
power.

         (g)      Release from Restriction; Termination of Rights. If the offer
to sell is neither accepted by Buyer nor by Warburg, or if the closing fails to
take place in accordance with subsection (f) above by the closing date stated in
the purchase notice, unless otherwise agreed to by the Seller and the party that
gave notice of its intention to purchase the Subject Shares, the Seller may make
a bona fide transfer to the prospective transferee named in the statement
attached to the offer in accordance with the agreed-upon terms of such transfer,
provided, that (i) such transfer shall be made only in strict accordance with
the terms therein stated and (ii) the transferee agrees, in writing, to be bound
by the provisions of this Agreement as if he or it were such Seller. However, if
the Seller shall fails to make such transfer within 45 business days following
the expiration of the time hereinabove provided for the election to purchase,
such shares shall again become subject to all the restrictions of this Article
IV.

                  ARTICLE V.        TAGALONG RIGHT OF SELLERS.

         In the event that Warburg proposes to transfer all or any part of its
shares of common stock of Buyer or shares of Buyer convertible into common stock
of Buyer (as part of a single transaction of a series of related transactions)
to any person other than an affiliate of Warburg (a "Tagalong Transaction"), the
Tagalong Transaction shall not be permitted hereunder unless the proposed
transferee (a "Tagalong Purchaser") offers to purchase Sellers' pro rata share
of Buyer Shares at the same price and on the same terms and conditions as the
Tagalong Purchaser has offered to Warburg. Prior to effecting any Tagalong
Transaction, Warburg shall deliver to Sellers a binding irrevocable offer (the
"Tagalong Offer") by the Tagalong Purchaser to purchase Sellers' pro rata share
of Buyer Shares at the same price and on the same terms and conditions as the
Tagalong Purchaser has offered to Warburg. The Tagalong Offer shall be
irrevocable for a period (the "Tagalong Period") ending on the tenth business
day following the date the Tagalong Offer is delivered to Sellers. At any time
during the Tagalong Period, Sellers may accept the Tagalong Offer by giving
written notice to the Tagalong Purchaser.

                                      -5-
<PAGE>   6

IN WITNESS WHEREOF, each of the parties hereto has caused this Agreement to be
executed on its behalf on the date and year first above written.

                                BUYER:

                                FACTORY AUTOMATION & COMPUTER
                                TECHNOLOGIES, INC.

                                By:
                                   ---------------------------------------------

                                Title:
                                      ------------------------------------------

                                SELLERS:

                                FACTORY AUTOMATION & COMPUTER
                                TECHNOLOGIES, INC.

                                ------------------------------------------------
                                Laurent Martineau

                                Claude Martineau

                                ------------------------------------------------
                                Claude Martineau, by: Laurent Martineau, as
                                attorney-in-fact pursuant to a Power of
                                Attorney dated February 27, 1996

                                Pierre-Andre Dubreuil

                                ------------------------------------------------
                                Pierre-Andre Dubreuil, by: Laurent Martineau, as
                                attorney-in-fact pursuant to a Power of Attorney
                                dated February 27, 1996

                                ------------------------------------------------
                                Seaforth Lyle

                                      -6-
<PAGE>   7

                                Bertrand Renaud

                                ------------------------------------------------
                                Bertrand Renaud, by: Laurent Martineau, as
                                attorney-in-fact pursuant to a Power of Attorney
                                dated February 27, 1996

                                ABR Europe S.A.

                                ------------------------------------------------
                                By: Laurent Martineau, as attorney-in-fact
                                pursuant to a Power of Attorney dated February
                                27, 1996

                                A.D.I.S.A.

                                ------------------------------------------------
                                B: Laurent Martineau, as attorney-in-fact
                                pursuant to a Power of Attorney dated February
                                27, 1996

                               WARBURG:

                               WARBURG, FINCUS INVESTORS, L.P.

                               By:
                                  ----------------------------------------------

                               By:
                                  ----------------------------------------------

                                      -7-

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