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                                                                   EXHIBIT 10.22

                                CONSILIUM, INC.

                            1996 STOCK OPTION PLAN


     1.   ESTABLISHMENT, PURPOSE AND TERM OF PLAN.
          --------------------------------------- 

          1.1  ESTABLISHMENT.  The Consilium, Inc. 1996 Stock Option Plan (the
"PLAN") is hereby established effective as of December 13, 1996 (the "EFFECTIVE
DATE").

          1.2  PURPOSE. The purpose of the Plan is to advance the interests of
the Participating Company Group and its stockholders by providing an incentive
to attract, retain and reward persons performing services for the Participating
Company Group and by motivating such persons to contribute to the growth and
profitability of the Participating Company Group.

          1.3  TERM OF PLAN. The Plan shall continue in effect until the earlier
of its termination by the Board or the date on which all of the shares of Stock
available for issuance under the Plan have been issued and all restrictions on
such shares under the terms of the Plan and the agreements evidencing Options
granted under the Plan have lapsed. However, all Incentive Stock Options shall
be granted, if at all, within ten (10) years from the earlier of the date the
Plan is adopted by the Board or the date the Plan is duly approved by the
stockholders of the Company. Notwithstanding the foregoing, if the maximum
number of shares of Stock issuable pursuant to the Plan as provided in Section
4.1 has been increased at any time, all Incentive Stock Options shall be
granted, if at all, no later than the last day preceding the tenth (10th)
anniversary of the earlier of (a) the date on which the latest such increase in
the maximum number of shares of Stock issuable under the Plan was approved by
the stockholders of the Company or (b) the date such amendment was adopted by
the Board.

     2.   DEFINITIONS AND CONSTRUCTION.
          ---------------------------- 

          2.1  DEFINITIONS.  Whenever used herein, the following terms shall
have their respective meanings set forth below:

               (a)  "BOARD" means the Board of Directors of the Company. If one
or more Committees have been appointed by the Board to administer the Plan,
"Board" also means such Committee(s).

               (b)  "CODE" means the Internal Revenue Code of 1986, as amended,
and any applicable regulations promulgated thereunder.

               (c)  "COMMITTEE" means the Compensation Committee or other
committee of the Board duly appointed to administer the Plan and having such
powers as shall be specified by the Board. Unless the powers of the Committee
have been specifically limited, the Committee shall have all of the powers of
the Board granted herein, including, without

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limitation, the power to amend or terminate the Plan at any time, subject to the
terms of the Plan and any applicable limitations imposed by law.

               (d)  "COMPANY" means Consilium, Inc., a Delaware corporation, or
any successor corporation thereto.

               (e)  "CONSULTANT" means any person, including an advisor, engaged
by a Participating Company to render services other than as an Employee or a
Director.

               (f)  "DIRECTOR" means a member of the Board or of the board of
directors of any other Participating Company.

               (g)  "EMPLOYEE" means any person treated as an employee
(including an officer or a Director who is also treated as an employee) in the
records of a Participating Company; provided, however, that neither service as a
Director nor payment of a director's fee shall be sufficient to constitute
employment for purposes of the Plan.

               (h)  "EXCHANGE ACT" means the Securities Exchange Act of 1934, as
amended.

               (i)  "FAIR MARKET VALUE" means, as of any date, the value of a
share of Stock or other property as determined by the Board, in its sole
discretion, or by the Company, in its sole discretion, if such determination is
expressly allocated to the Company herein, subject to the following:

                    (i)  If, on such date, there is a public market for the
Stock, the Fair Market Value of a share of Stock shall be the closing sale price
of a share of Stock (or the mean of the closing bid and asked prices of a share
of Stock if the Stock is so quoted instead) as quoted on the Nasdaq National
Market, the Nasdaq Small-Cap Market or such other national or regional
securities exchange or market system constituting the primary market for the
Stock, as reported in the Wall Street Journal or such other source as the
                          -------------------  
Company deems reliable. If the relevant date does not fall on a day on which the
Stock has traded on such securities exchange or market system, the date on which
the Fair Market Value shall be established shall be the last day on which the
Stock was so traded prior to the relevant date, or such other appropriate day as
shall be determined by the Board, in its sole discretion.

                    (ii) If, on such date, there is no public market for the
Stock, the Fair Market Value of a share of Stock shall be as determined by the
Board without regard to any restriction other than a restriction which, by its
terms, will never lapse.

               
               (j)  "INCENTIVE STOCK OPTION" means an Option intended to be (as
set forth in the Option Agreement) and which qualifies as an incentive stock
option within the meaning of Section 422(b) of the Code.

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               (k)  "INSIDER" means an officer or a Director of the Company or
any other person whose transactions in Stock are subject to Section 16 of the
Exchange Act.

               (l)  "NONSTATUTORY STOCK OPTION" means an Option not intended to
be (as set forth in the Option Agreement) or which does not qualify as an
Incentive Stock Option.

               (m)  "OPTION" means a right to purchase Stock (subject to
adjustment as provided in Section 4.2) pursuant to the terms and conditions of
the Plan. An Option may be either an Incentive Stock Option or a Nonstatutory
Stock Option.

               (n)  "OPTION AGREEMENT" means a written agreement between the
Company and an Optionee setting forth the terms, conditions and restrictions of
the Option granted to the Optionee and any shares acquired upon the exercise
thereof.

               (o)  "OPTIONEE" means a person who has been granted one or more
Options.

               (p)  "PARENT CORPORATION" means any present or future "parent
corporation" of the Company, as defined in Section 424(e) of the Code.

               (q)  "PARTICIPATING COMPANY" means the Company or any Parent
Corporation or Subsidiary Corporation.

               (r)  "PARTICIPATING COMPANY GROUP" means, at any point in time,
all corporations collectively which are then Participating Companies.

               (s)  "RULE 16B-3" means Rule 16b-3 under the Exchange Act, as
amended from time to time, or any successor rule or regulation.

               (t)  "SECTION 162(M)" means Section 162(m) of the Code, as
amended by the Revenue Reconciliation Act of 1993 (P.L. 103-66).

               (u)  "STOCK" means the common stock, par value $0.01, of the
Company, as adjusted from time to time in accordance with Section 4.2.

               (v)  "SUBSIDIARY CORPORATION" means any present or future
"subsidiary corporation" of the Company, as defined in Section 424(f) of the
Code.

               (w)  "TEN PERCENT OWNER OPTIONEE" means an Optionee who, at the
time an Option is granted to the Optionee, owns stock possessing more than ten
percent (10%) of the total combined voting power of all classes of stock of a
Participating Company within the meaning of Section 422(b)(6) of the Code.

          2.2  CONSTRUCTION.  Captions and titles contained herein are for
convenience only and shall not affect the meaning or interpretation of any
provision of the Plan.  Except when 

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otherwise indicated by the context, the singular shall include the plural and
the plural shall include the singular. Use of the term "or" is not intended to
be exclusive, unless the context clearly requires otherwise.

     3.   ADMINISTRATION.
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          3.1  ADMINISTRATION BY THE BOARD. The Plan shall be administered by
the Board, including any duly appointed Committee of the Board. All questions of
interpretation of the Plan or of any Option shall be determined by the Board,
and such determinations shall be final and binding upon all persons having an
interest in the Plan or such Option. Any officer of a Participating Company
shall have the authority to act on behalf of the Company with respect to any
matter, right, obligation, determination or election which is the responsibility
of or which is allocated to the Company herein, provided the officer has
apparent authority with respect to such matter, right, obligation, determination
or election.

          3.2  ADMINISTRATION WITH RESPECT TO INSIDERS.  With respect to
participation by Insiders in the Plan, at any time that any class of equity
security of the Company is registered pursuant to Section 12 of the Exchange
Act, the Plan shall be administered in compliance with the requirements, if any,
of Rule 16b-3.

          3.3  POWERS OF THE BOARD. In addition to any other powers set forth in
the Plan and subject to the provisions of the Plan, the Board shall have the
full and final power and authority, in its sole discretion:

               (a)  to determine the persons to whom, and the time or times at
which, Options shall be granted and the number of shares of Stock to be subject
to each Option;

               (b)  to designate Options as Incentive Stock Options or
Nonstatutory Stock Options;

               (c)  to determine the Fair Market Value of shares of Stock or
other property;

               (d)  to determine the terms, conditions and restrictions
applicable to each Option (which need not be identical) and any shares acquired
upon the exercise thereof, including, without limitation, (i) the exercise price
of the Option, (ii) the method of payment for shares purchased upon the exercise
of the Option, (iii) the method for satisfaction of any tax withholding
obligation arising in connection with the Option or such shares, including by
the withholding or delivery of shares of stock, (iv) the timing, terms and
conditions of the exercisability of the Option or the vesting of any shares
acquired upon the exercise thereof, (v) the time of the expiration of the
Option, (vi) the effect of the Optionee's termination of employment or service
with the Participating Company Group on any of the foregoing, and (vii) all
other terms, conditions and restrictions applicable to the Option or such shares
not inconsistent with the terms of the Plan;

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               (e)  to approve one or more forms of Option Agreement;

               (f)  to amend, modify, extend, or renew, or grant a new Option in
substitution for, any Option or to waive any restrictions or conditions
applicable to any Option or any shares acquired upon the exercise thereof;

               (g)  to accelerate, continue, extend or defer the exercisability
of any Option or the vesting of any shares acquired upon the exercise thereof,
including with respect to the period following an Optionee's termination of
employment or service with the Participating Company Group;

               (h)  to prescribe, amend or rescind rules, guidelines and
policies relating to the Plan, or to adopt supplements to, or alternative
versions of, the Plan, including, without limitation, as the Board deems
necessary or desirable to comply with the laws of, or to accommodate the tax
policy or custom of, foreign jurisdictions whose citizens may be granted
Options; and

               (i)  to correct any defect, supply any omission or reconcile any
inconsistency in the Plan or any Option Agreement and to make all other
determinations and take such other actions with respect to the Plan or any
Option as the Board may deem advisable to the extent consistent with the Plan
and applicable law.

          3.4  COMMITTEE COMPLYING WITH SECTION 162(m). If a Participating
Company is a "publicly held corporation" within the meaning of Section 162(m),
the Board may establish a Committee of "outside directors" within the meaning of
Section 162(m) to approve the grant of any Option which might reasonably be
anticipated to result in the payment of employee remuneration that would
otherwise exceed the limit on employee remuneration deductible for income tax
purposes pursuant to Section 162(m).

      4.  SHARES SUBJECT TO PLAN.
          ---------------------- 

          4.1  MAXIMUM NUMBER OF SHARES ISSUABLE. Subject to adjustment as
provided in Section 4.2, the maximum aggregate number of shares of Stock that
may be issued under the Plan shall be the sum of (a) Three Hundred Ninety
Thousand (390,000) shares, (b) the number of shares of Stock, as of the
Effective Date, subject to outstanding options granted pursuant to the Company's
Fourth Amended and Restated 1983 Stock Option Plan and 1993 Stock Option Plan
(collectively, the "PRIOR PLANS"), which amount is One Million Six Hundred
Seventy-Seven Thousand Six Hundred Fifty-Four (1,677,654) shares (the "PRIOR
PLAN OPTIONS"), and (c) the number of shares of Stock available for future grant
under the Prior Plans as of the Effective Date, which amount is Two Hundred
Forty-Five Thousand Six Hundred Twenty-Four (245,624) (the "PRIOR PLAN AVAILABLE
SHARES"), resulting in an aggregate total of Two Million Three Hundred Thirteen
Thousand Two Hundred Seventy-Eight (2,313,278) shares (the "SHARE RESERVE") and
shall consist of authorized but unissued or reacquired shares of Stock or any
combination thereof. Notwithstanding the foregoing, the Share Reserve,
determined at any time, shall be reduced by (a) the number of shares remaining
subject to outstanding Prior

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Plan Options, (b) the number of shares issued upon the exercise of Prior Plan
Options, and (c) the number of shares, if any, of the Prior Plan Available
Shares which are issued upon the exercise of options granted under the Prior
Plans subsequent to the Effective Date. If an outstanding Option for any reason
expires or is terminated or canceled, or if shares of Stock acquired, subject to
repurchase, upon the exercise of an Option are repurchased by the Company, the
shares of Stock allocable to the unexercised portion of such Option or such
repurchased shares of Stock shall again be available for issuance under the
Plan.

          4.2  ADJUSTMENTS FOR CHANGES IN CAPITAL STRUCTURE. In the event of any
stock dividend, stock split, reverse stock split, recapitalization, combination,
reclassification or similar change in the capital structure of the Company,
appropriate adjustments shall be made in the number and class of shares subject
to the Plan and to any outstanding Options, in the Section 162(m) Grant Limit
set forth in Section 5.4, and in the exercise price per share of any outstanding
Options. If a majority of the shares which are of the same class as the shares
that are subject to outstanding Options are exchanged for, converted into, or
otherwise become (whether or not pursuant to an Ownership Change Event, as
defined in Section 8.1) shares of another corporation (the "NEW SHARES"), the
Board may unilaterally amend the outstanding Options to provide that such
Options are exercisable for New Shares. In the event of any such amendment, the
number of shares subject to, and the exercise price per share of, the
outstanding Options shall be adjusted in a fair and equitable manner as
determined by the Board, in its sole discretion. Notwithstanding the foregoing,
any fractional share resulting from an adjustment pursuant to this Section 4.2
shall be rounded up or down to the nearest whole number, as determined by the
Board, and in no event may the exercise price of any Option be decreased to an
amount less than the par value, if any, of the stock subject to the Option. The
adjustments determined by the Board pursuant to this Section 4.2 shall be final,
binding and conclusive.

     5.   ELIGIBILITY AND OPTION LIMITATIONS.
          ---------------------------------- 

          5.1  PERSONS ELIGIBLE FOR OPTIONS.  Options may be granted only to
Employees, Consultants, and Directors.  For purposes of the foregoing sentence,
"Employees," "Consultants" and "Directors" shall include prospective Employees,
prospective Consultants and prospective Directors to whom Options are granted in
connection with written offers of employment or other service relationship with
the Participating Company Group.  Eligible persons may be granted more than one
(1) Option.

          5.2  OPTION GRANT RESTRICTIONS. Any person who is not an Employee on
the effective date of the grant of an Option to such person may be granted only
a Nonstatutory Stock Option. An Incentive Stock Option granted to a prospective
Employee upon the condition that such person become an Employee shall be deemed
granted effective on the date such person commences service with a Participating
Company, with an exercise price determined as of such date in accordance with
Section 6.1.

          5.3  FAIR MARKET VALUE LIMITATION. To the extent that options
designated as Incentive Stock Options (granted under all stock option plans of
the Participating Company Group, including the Plan) become exercisable by an
Optionee for the first time during any

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calendar year for stock having an aggregate Fair Market Value greater than One
Hundred Thousand Dollars ($100,000), the portion of such options which exceeds
such amount shall be treated as Nonstatutory Stock Options. For purposes of this
Section 5.3, options designated as Incentive Stock Options shall be taken into
account in the order in which they were granted, and the Fair Market Value of
stock shall be determined as of the time the option with respect to such stock
is granted. If the Code is amended to provide for a different limitation from
that set forth in this Section 5.3, such different limitation shall be deemed
incorporated herein effective as of the date and with respect to such Options as
required or permitted by such amendment to the Code. If an Option is treated as
an Incentive Stock Option in part and as a Nonstatutory Stock Option in part by
reason of the limitation set forth in this Section 5.3, the Optionee may
designate which portion of such Option the Optionee is exercising. In the
absence of such designation, the Optionee shall be deemed to have exercised the
Incentive Stock Option portion of the Option first. Separate certificates
representing each such portion shall be issued upon the exercise of the Option.

          5.4  SECTION 162(m) GRANT LIMIT.  Subject to adjustment as provided in
Section 4.2, at any such time as a Participating Company is a "publicly held
corporation" within the meaning of Section 162(m), no Employee shall be granted
one or more Options within any fiscal year of the Company which in the aggregate
are for the purchase of more than Two Hundred Thousand (200,000) shares;
provided, however, that the Company may make grant any newly-hired Employee an
Option for the purchase of up to Three Hundred Thousand (300,000) shares (the
"SECTION 162(M) GRANT LIMIT").  An Option which is canceled in the same fiscal
year of the Company in which it was granted shall continue to be counted against
the Section 162(m) Grant Limit for such period.

     6.   TERMS AND CONDITIONS OF OPTIONS.  Options shall be evidenced by Option
          -------------------------------                                       
Agreements specifying the number of shares of Stock covered thereby, in such
form as the Board shall from time to time establish.  Option Agreements may
incorporate all or any of the terms of the Plan by reference and shall comply
with and be subject to the following terms and conditions:

          6.1  EXERCISE PRICE.  The exercise price for each Option shall be
established in the sole discretion of the Board; provided, however, that (a) the
exercise price per share for an Option shall be not less than the Fair Market
Value of a share of Stock on the effective date of grant of the Option and (b)
no Incentive Stock Option granted to a Ten Percent Owner Optionee shall have an
exercise price per share less than one hundred ten percent (110%) of the Fair
Market Value of a share of Stock on the effective date of grant of the Option.
Notwithstanding the foregoing, an Option (whether an Incentive Stock Option or a
Nonstatutory Stock Option) may be granted with an exercise price lower than the
minimum exercise price set forth above if such Option is granted pursuant to an
assumption or substitution for another option in a manner qualifying under the
provisions of Section 424(a) of the Code.

          6.2  EXERCISE PERIOD. Options shall be exercisable at such time or
times, or upon such event or events, and subject to such terms, conditions,
performance criteria, and restrictions as shall be determined by the Board and
set forth in the Option Agreement

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evidencing such Option; provided, however, that (a) no Incentive Stock Option
shall be exercisable after the expiration of ten (10) years after the effective
date of grant of such Option, (b) no Incentive Stock Option granted to a Ten
Percent Owner Optionee shall be exercisable after the expiration of five (5)
years after the effective date of grant of such Option, and (c) no Option
granted to a prospective Employee, prospective Consultant or prospective
Director may become exercisable prior to the date on which such person commences
service with a Participating Company.

          6.3  PAYMENT OF EXERCISE PRICE.

               (a)  FORMS OF CONSIDERATION AUTHORIZED. Except as otherwise
provided below, payment of the exercise price for the number of shares of Stock
being purchased pursuant to any Option shall be made (i) in cash, by check, or
cash equivalent, (ii) by tender to the Company of shares of Stock owned by the
Optionee having a Fair Market Value (as determined by the Company without regard
to any restrictions on transferability applicable to such stock by reason of
federal or state securities laws or agreements with an underwriter for the
Company) not less than the exercise price, (iii) by the assignment of the
proceeds of a sale or loan with respect to some or all of the shares being
acquired upon the exercise of the Option (including, without limitation, through
an exercise complying with the provisions of Regulation T as promulgated from
time to time by the Board of Governors of the Federal Reserve System) (a
"CASHLESS EXERCISE"), (iv) by the Optionee's promissory note in a form approved
by the Company, (v) by such other consideration as may be approved by the Board
from time to time to the extent permitted by applicable law, or (vi) by any
combination thereof. The Board may at any time or from time to time, by adoption
of or by amendment to the standard forms of Option Agreement described in
Section 7, or by other means, grant Options which do not permit all of the
foregoing forms of consideration to be used in payment of the exercise price or
which otherwise restrict one or more forms of consideration.

               (b)  TENDER OF STOCK. Notwithstanding the foregoing, an Option
may not be exercised by tender to the Company of shares of Stock to the extent
such tender of Stock would constitute a violation of the provisions of any law,
regulation or agreement restricting the redemption of the Company's stock.
Unless otherwise provided by the Board, an Option may not be exercised by tender
to the Company of shares of Stock unless such shares either have been owned by
the Optionee for more than six (6) months or were not acquired, directly or
indirectly, from the Company.

               (c)  CASHLESS EXERCISE. The Company reserves, at any and all
times, the right, in the Company's sole and absolute discretion, to establish,
decline to approve or terminate any program or procedures for the exercise of
Options by means of a Cashless Exercise.

               (d)  PAYMENT BY PROMISSORY NOTE. No promissory note shall be
permitted if the exercise of an Option using a promissory note would be a
violation of any law. Any permitted promissory note shall be on such terms as
the Board shall determine at the time the Option is granted. The Board shall
have the authority to permit or require the Optionee to

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secure any promissory note used to exercise an Option with the shares of Stock
acquired upon the exercise of the Option or with other collateral acceptable to
the Company. Unless otherwise provided by the Board, if the Company at any time
is subject to the regulations promulgated by the Board of Governors of the
Federal Reserve System or any other governmental entity affecting the extension
of credit in connection with the Company's securities, any promissory note shall
comply with such applicable regulations, and the Optionee shall pay the unpaid
principal and accrued interest, if any, to the extent necessary to comply with
such applicable regulations.

          6.4  TAX WITHHOLDING.  The Company shall have the right, but not the
obligation, to deduct from the shares of Stock issuable upon the exercise of an
Option, or to accept from the Optionee the tender of, a number of whole shares
of Stock having a Fair Market Value, as determined by the Company, equal to all
or any part of the federal, state, local and foreign taxes, if any, required by
law to be withheld by the Participating Company Group with respect to such
Option or the shares acquired upon the exercise thereof.  Alternatively or in
addition, in its sole discretion, the Company shall have the right to require
the Optionee, through payroll withholding, cash payment or otherwise, including
by means of a Cashless Exercise, to make adequate provision for any such tax
withholding obligations of the Participating Company Group arising in connection
with the Option or the shares acquired upon the exercise thereof.  The Company
shall have no obligation to deliver shares of Stock or to release shares of
Stock from an escrow established pursuant to the Option Agreement until the
Participating Company Group's tax withholding obligations have been satisfied by
the Optionee.

     7.   STANDARD FORMS OF OPTION AGREEMENT.
          ---------------------------------- 

          7.1  INCENTIVE STOCK OPTIONS. Unless otherwise provided by the Board
at the time the Option is granted, an Option designated as an "Incentive Stock
Option" shall comply with and be subject to the terms and conditions set forth
in the appropriate form of Incentive Stock Option Agreement adopted by the Board
concurrently with its adoption of the Plan and as amended from time to time.

          7.2  NONSTATUTORY STOCK OPTIONS. Unless otherwise provided by the
Board at the time the Option is granted, an Option designated as a "Nonstatutory
Stock Option" shall comply with and be subject to the terms and conditions set
forth in the appropriate form of Nonstatutory Stock Option Agreement adopted by
the Board concurrently with its adoption of the Plan and as amended from time to
time.

          7.3  STANDARD TERM OF OPTIONS. Except as otherwise provided in Section
6.2 or by the Board in the grant of an Option, any Option granted hereunder
shall have a term of ten (10) years from the effective date of grant of the
Option.

          7.4  AUTHORITY TO VARY TERMS. The Board shall have the authority from
time to time to vary the terms of any of the standard forms of Option Agreement
described in this Section 7 either in connection with the grant or amendment of
an individual Option or in connection with the authorization of a new standard
form or forms; provided, however, that the

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terms and conditions of any such new, revised or amended standard form or forms
of Option Agreement are not inconsistent with the terms of the Plan. Such
authority shall include, but not by way of limitation, the authority to grant
Options which are immediately exercisable subject to the Company's right to
repurchase any unvested shares of Stock acquired by an Optionee upon the
exercise of an Option in the event such Optionee's employment or service with
the Participating Company Group is terminated for any reason, with or without
cause.

     8.   TRANSFER OF CONTROL.
          ------------------- 

          8.1  DEFINITIONS.

               (a)  An "OWNERSHIP CHANGE EVENT" shall be deemed to have occurred
if any of the following occurs with respect to the Company:

                    (i)   the direct or indirect sale or exchange in a single or
series of related transactions by the stockholders of the Company of more than
fifty percent (50%) of the voting stock of the Company;

                    (ii)  a merger or consolidation in which the Company is a
party;

                    (iii) the sale, exchange, or transfer of all or
substantially all of the assets of the Company; or

                    (iv)  a liquidation or dissolution of the Company.

               (b)  A "TRANSFER OF CONTROL" shall mean an Ownership Change Event
or a series of related Ownership Change Events (collectively, the "TRANSACTION")
wherein the stockholders of the Company immediately before the Transaction do
not retain immediately after the Transaction, in substantially the same
proportions as their ownership of shares of the Company's voting stock
immediately before the Transaction, direct or indirect beneficial ownership of
more than fifty percent (50%) of the total combined voting power of the
outstanding voting stock of the Company or the corporation or corporations to
which the assets of the Company were transferred (the "TRANSFEREE
CORPORATION(S)"), as the case may be. For purposes of the preceding sentence,
indirect beneficial ownership shall include, without limitation, an interest
resulting from ownership of the voting stock of one or more corporations which,
as a result of the Transaction, own the Company or the Transferee
Corporation(s), as the case may be, either directly or through one or more
subsidiary corporations. The Board shall have the right to determine whether
multiple sales or exchanges of the voting stock of the Company or multiple
Ownership Change Events are related, and its determination shall be final,
binding and conclusive.

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          8.2  EFFECT OF TRANSFER OF CONTROL ON OPTIONS. In the event of a
Transfer of Control, the surviving, continuing, successor, or purchasing
corporation or parent corporation thereof, as the case may be (the "ACQUIRING
CORPORATION"), may either assume the Company's rights and obligations under
outstanding Options or substitute for outstanding Options substantially
equivalent options for the Acquiring Corporation's stock. For purposes of this
Section 8.2, an Option shall be deemed assumed if, following the Transfer of
Control, the Option confers the right to purchase, for each share of Stock
subject to the Option immediately prior to the Transfer of Control, the
consideration (whether stock, cash or other securities or property) to which a
holder of a share of Stock on the effective date of the Transfer of Control was
entitled. In the event the Acquiring Corporation assumes or substitutes for an
outstanding Option in connection with a Transfer of Control, no acceleration of
exercisability or vesting shall occur, unless otherwise provided in the Option
Agreement evidencing such Option or a change of control agreement between the
Company and the Optionee, if any. In the event the Acquiring Corporation elects
not to assume or substitute for outstanding Options in connection with a
Transfer of Control, any unexercisable or unvested portion of the outstanding
Options shall be immediately exercisable and vested in full as of the date ten
(10) days prior to the date of the Transfer of Control. The exercise or vesting
of any Option that was permissible solely by reason of this Section 8.2 shall be
conditioned upon the consummation of the Transfer of Control. Any Options which
are neither assumed or substituted for by the Acquiring Corporation in
connection with the Transfer of Control nor exercised as of the date of the
Transfer of Control shall terminate and cease to be outstanding effective as of
the date of the Transfer of Control. Notwithstanding the foregoing, shares
acquired upon exercise of an Option prior to the Transfer of Control and any
consideration received pursuant to the Transfer of Control with respect to such
shares shall continue to be subject to all applicable provisions of the Option
Agreement evidencing such Option except as otherwise provided in such Option
Agreement. Furthermore, notwithstanding the foregoing, if the corporation the
stock of which is subject to the outstanding Options immediately prior to an
Ownership Change Event described in Section 8.1(a)(i) constituting a Transfer of
Control is the surviving or continuing corporation and immediately after such
Ownership Change Event less than fifty percent (50%) of the total combined
voting power of its voting stock is held by another corporation or by other
corporations that are members of an affiliated group within the meaning of
Section 1504(a) of the Code without regard to the provisions of Section 1504(b)
of the Code, the outstanding Options shall not terminate unless the Board
otherwise provides in its sole discretion.

     9.   PROVISION OF INFORMATION.  Each Optionee shall be given access to
          ------------------------                                         
information concerning the Company equivalent to that information generally made
available to the Company's common stockholders.

     10.  NONTRANSFERABILITY OF INCENTIVE STOCK OPTIONS.  During the lifetime of
          ---------------------------------------------                         
the Optionee, an Option shall be exercisable only by the Optionee or the
Optionee's guardian or legal representative.  No Option shall be assignable or
transferable by the Optionee, except by will or by the laws of descent and
distribution.  Notwithstanding the foregoing, a Nonstatutory Stock Option shall
be assignable or transferable to the extent permitted by the Board and set forth
in the Option Agreement evidencing such Option.

                                       11
<PAGE>
 
     11.  INDEMNIFICATION.  In addition to such other rights of indemnification
          ---------------                                                      
as they may have as members of the Board or officers or employees of the
Participating Company Group, members of the Board and any officers or employees
of the Participating Company Group to whom authority to act for the Board or the
Company is delegated shall be indemnified by the Company against all reasonable
expenses, including attorneys' fees, actually and necessarily incurred in
connection with the defense of any action, suit or proceeding, or in connection
with any appeal therein, to which they or any of them may be a party by reason
of any action taken or failure to act under or in connection with the Plan, or
any right granted hereunder, and against all amounts paid by them in settlement
thereof (provided such settlement is approved by independent legal counsel
selected by the Company) or paid by them in satisfaction of a judgment in any
such action, suit or proceeding, except in relation to matters as to which it
shall be adjudged in such action, suit or proceeding that such person is liable
for gross negligence, bad faith or intentional misconduct in duties; provided,
however, that within sixty (60) days after the institution of such action, suit
or proceeding, such person shall offer to the Company, in writing, the
opportunity at its own expense to handle and defend the same.

     12.  TERMINATION OR AMENDMENT OF PLAN.  The Board may terminate or amend
          --------------------------------                                   
the Plan at any time.  However, subject to changes in applicable law,
regulations or rules that would permit otherwise, without the approval of the
Company's stockholders, there shall be (a) no increase in the maximum aggregate
number of shares of Stock that may be issued under the Plan (except by operation
of the provisions of Section 4.2), (b) no change in the class of persons
eligible to receive Incentive Stock Options, and (c) no other amendment of the
Plan that would require approval of the Company's stockholders under any
applicable law, regulation or rule.  In any event, no termination or amendment
of the Plan may adversely affect any then outstanding Option or any unexercised
portion thereof, without the consent of the Optionee, unless such termination or
amendment is required to enable an Option designated as an Incentive Stock
Option to qualify as an Incentive Stock Option or is necessary to comply with
any applicable law, regulation or rule.

     IN WITNESS WHEREOF, the undersigned Secretary of the Company certifies that
the foregoing Consilium, Inc. 1996 Stock Option Plan was duly adopted by the
Board on December 13, 1996.



                                    ____________________________________________
                                    Secretary

                                       12
<PAGE>
 
                                  PLAN HISTORY
                                  ------------



December 13, 1996       Board adopts Plan, with an initial reserve of 2,313,278
                        shares.


[______________, 1997]  Stockholders approve Plan, with an initial reserve of
                        2,313,278 shares.

                                       13
<PAGE>
 
                                CONSILIUM, INC.

                       INCENTIVE STOCK OPTION AGREEMENT

                                   (OFFICER)


     THIS INCENTIVE STOCK OPTION AGREEMENT (the "OPTION AGREEMENT") is made and
entered into as of ___________, 199_, by and between Consilium, Inc. and
___________________________ (the "OPTIONEE").

     The Company has granted to the Optionee pursuant to the Consilium, Inc.
1996 Stock Option Plan an option to purchase certain shares of Stock upon the
terms and conditions set forth in this Option Agreement (the "OPTION").

     1.   DEFINITIONS AND CONSTRUCTION.
          ---------------------------- 

          1.1  DEFINITIONS.  Whenever used herein, the following terms shall
have their respective meanings set forth below:

               (a)  "DATE OF OPTION GRANT" means ________________________,
199_.

               (b)  "NUMBER OF OPTION SHARES" means ___________________ shares
of Stock, as adjusted from time to time pursuant to Section 9.

               (c)  "EXERCISE PRICE" means $ ____________ per share of Stock, as
adjusted from time to time pursuant to Section 9.

               (d)  "INITIAL EXERCISE DATE" means the Initial Vesting Date.

               (e)  "INITIAL VESTING DATE" means the date occurring one (1) year
after (check one):

                    __   the Date of Option Grant.
                        
                    __   __________________ , 199_, the date the Optionee's
                         Service commenced.

                                       14
<PAGE>
 
               (f)  "VESTED RATIO" means, on any relevant date, the ratio
determined as follows:

<TABLE> 
<CAPTION> 
                                                          Vested Ratio
                                                          ------------
               <S>                                        <C>        
               Prior to Initial Vesting Date                         0
                                                                     
               On Initial Vesting Date, provided the               1/4
               Optionee's Service is continuous from                
               the Date of Option Grant until the                   
               Initial Vesting Date                                 
                                                                     
               Plus                                                  
               ----                                                  
                                                                     
               For each full month of the Optionee's              1/48
               continuous Service from the Initial                  
               Vesting Date until the Vested Ratio                  
               equals 1/1, an additional                             
</TABLE>

               (g)  "OPTION EXPIRATION DATE" means the date ten (10) years after
the Date of Option Grant.

               (h)  "BOARD" means the Board of Directors of the Company. If one
or more Committees have been appointed by the Board to administer the Plan,
"Board" shall also mean such Committee(s).

               (i)  "CODE" means the Internal Revenue Code of 1986, as amended,
and any applicable regulations promulgated thereunder.

               (j)  "COMMITTEE" means the Compensation Committee or other
committee of the Board duly appointed to administer the Plan and having such
powers as shall be specified by the Board. Unless the powers of the Committee
have been specifically limited, the Committee shall have all of the powers of
the Board granted in the Plan, including, without limitation, the power to amend
or terminate the Plan at any time, subject to the terms of the Plan and any
applicable limitations imposed by law.

               (k)  "COMPANY" means Consilium, Inc., a Delaware corporation, or
any successor corporation thereto.

               (l)  "CONSULTANT" means any person, including an advisor, engaged
by a Participating Company to render services other than as an Employee or a
Director.

               (m)  "DIRECTOR" means a member of the Board or of the board of
directors of any other Participating Company.

                                       15
<PAGE>
 
               (n)  "DISABILITY" means the permanent and total disability of the
Optionee within the meaning of Section 22(e)(3) of the Code.

               (o)  "EMPLOYEE" means any person treated as an employee
(including an officer or a Director who is also treated as an employee) in the
records of a Participating Company; provided, however, that neither service as a
Director nor payment of a director's fee shall be sufficient to constitute
employment for this purpose.

               (p)  "EXCHANGE ACT" means the Securities Exchange Act of 1934, as
amended.

               (q)  "FAIR MARKET VALUE" means, as of any date, the value of a
share of Stock or other property as determined by the Board, in its sole
discretion, or by the Company, in its sole discretion, if such determination is
expressly allocated to the Company herein, subject to the following:

                    (i)  If, on such date, there is a public market for the
Stock, the Fair Market Value of a share of Stock shall be the closing sale price
of a share of Stock (or the mean of the closing bid and asked prices of a share
of Stock if the Stock is so quoted instead) as quoted on the Nasdaq National
Market, the Nasdaq Small-Cap Market or such other national or regional
securities exchange or market system constituting the primary market for the
Stock, as reported in the Wall Street Journal or such other source as the
                          -------------------  
Company deems reliable. If the relevant date does not fall on a day on which the
Stock has traded on such securities exchange or market system, the date on which
the Fair Market Value shall be established shall be the last day on which the
Stock was so traded prior to the relevant date, or such other appropriate day as
shall be determined by the Board, in its sole discretion.

                    (ii) If, on such date, there is no public market for the
Stock, the Fair Market Value of a share of Stock shall be as determined by the
Board without regard to any restriction other than a restriction which, by its
terms, will never lapse.

               (r)  "PARENT CORPORATION" means any present or future "parent
corporation" of the Company, as defined in Section 424(e) of the Code.

               (s)  "PARTICIPATING COMPANY" means the Company or any Parent
Corporation or Subsidiary Corporation.

               (t)  "PARTICIPATING COMPANY GROUP" means, at any point in time,
all corporations collectively which are then Participating Companies.

               (u)  "PLAN" means the Consilium, Inc. 1996 Stock Option Plan.

               (v)  "RULE 16B-3" means Rule 16b-3 under the Exchange Act, as
amended from time to time, or any successor rule or regulation.

               (w) "SECURITIES ACT" means the Securities Act of 1933, as
amended.

                                       16
<PAGE>
 
               (x)  "SERVICE" means the Optionee's employment or service with
the Participating Company Group, whether in the capacity of an Employee, a
Director or a Consultant. The Optionee's Service shall not be deemed to have
terminated merely because of a change in the capacity in which the Optionee
renders Service to the Participating Company Group or a change in the
Participating Company for which the Optionee renders such Service, provided that
there is no interruption or termination of the Optionee's Service. The
Optionee's Service shall be deemed to have terminated either upon an actual
termination of Service or upon the corporation for which the Optionee performs
Service ceasing to be a Participating Company. Subject to the foregoing, the
Company, in its sole discretion, shall determine whether the Optionee's Service
has terminated and the effective date of such termination. (NOTE: If the Option
is exercised more than three (3) months after the date on which the Optionee
ceased to be an Employee (other than by reason of death or a permanent and total
disability as defined in Section 22(e)(3) of the Code), the Option will be
treated as a nonstatutory stock option and not as an incentive stock option to
the extent required by Section 422 of the Code.)

               (y)  "STOCK" means the common stock, par value $0.01, of the
Company, as adjusted from time to time in accordance with Section 9.

               (z)  "SUBSIDIARY CORPORATION" means any present or future
"subsidiary corporation" of the Company, as defined in Section 424(f) of the
Code.

          1.2  CONSTRUCTION.  Captions and titles contained herein are for
convenience only and shall not affect the meaning or interpretation of any
provision of this Option Agreement.  Except when otherwise indicated by the
context, the singular shall include the plural and the plural shall include the
singular.  Use of the term "or" is not intended to be exclusive, unless the
context clearly requires otherwise.

     2.   TAX CONSEQUENCES.
          ---------------- 

          2.1  TAX STATUS OF OPTION.  This Option is intended to be an incentive
stock option within the meaning of Section 422(b) of the Code (an "INCENTIVE
STOCK OPTION"), but the Company does not represent or warrant that this Option
qualifies as such.  The Optionee should consult with the Optionee's own tax
advisor regarding the tax effects of this Option and the requirements necessary
to obtain favorable income tax treatment under Section 422 of the Code,
including, but not limited to, holding period requirements.  (NOTE: If the
aggregate Exercise Price of the Option (that is, the Exercise Price multiplied
by the Number of Option Shares) plus the aggregate exercise price of any other
Incentive Stock Options held by the Optionee (whether granted pursuant to the
Plan or any other stock option plan of the Participating Company Group) is
greater than One Hundred Thousand Dollars ($100,000), the Optionee should
contact the Chief Financial Officer of the Company to ascertain whether the
entire Option qualifies as an Incentive Stock Option.)

          2.2  ELECTION UNDER SECTION 83(b) OF THE CODE. If the Optionee
exercises this Option to purchase shares of Stock that are both nontransferable
and subject to a substantial risk

                                       17
<PAGE>
 
of forfeiture, the Optionee understands that the Optionee should consult with
the Optionee's tax advisor regarding the advisability of filing with the
Internal Revenue Service an election under Section 83(b) of the Code, which must
be filed no later than thirty (30) days after the date on which the Optionee
exercises the Option. Shares acquired upon exercise of the Option are
nontransferable and subject to a substantial risk of forfeiture if, for example,
(a) they are unvested and are subject to a right of the Company to repurchase
such shares at the Optionee's original purchase price if the Optionee's Service
terminates, or (b) the Optionee is subject to a restriction on transfer to
comply with "Pooling-of-Interests Accounting" rules. Failure to file an election
under Section 83(b), if appropriate, may result in adverse tax consequences to
the Optionee. The Optionee acknowledges that the Optionee has been advised to
consult with a tax advisor prior to the exercise of the Option regarding the tax
consequences to the Optionee of the exercise of the Option. AN ELECTION UNDER
SECTION 83(b) MUST BE FILED WITHIN 30 DAYS AFTER THE DATE ON WHICH THE OPTIONEE
PURCHASES SHARES. THIS TIME PERIOD CANNOT BE EXTENDED. THE OPTIONEE ACKNOWLEDGES
THAT TIMELY FILING OF A SECTION 83(b) ELECTION IS THE OPTIONEE'S SOLE
RESPONSIBILITY, EVEN IF THE OPTIONEE REQUESTS THE COMPANY OR ITS REPRESENTATIVE
TO FILE SUCH ELECTION ON HIS OR HER BEHALF.

     3.   ADMINISTRATION.  All questions of interpretation concerning this
          --------------                                                  
Option Agreement shall be determined by the Board, including any duly appointed
Committee of the Board.  All determinations by the Board shall be final and
binding upon all persons having an interest in the Option.  Any officer of a
Participating Company shall have the authority to act on behalf of the Company
with respect to any matter, right, obligation, or election which is the
responsibility of or which is allocated to the Company herein, provided the
officer has apparent authority with respect to such matter, right, obligation,
or election.

     4.   EXERCISE OF THE OPTION.
          ---------------------- 

          4.1  RIGHT TO EXERCISE. Except as otherwise provided herein, the
Option shall be exercisable on and after the Initial Exercise Date and prior to
the termination of the Option (as provided in Section 6) in an amount not to
exceed the Number of Option Shares multiplied by the Vested Ratio less the
number of shares previously acquired upon exercise of the Option. In no event
shall the Option be exercisable for more shares than the Number of Option
Shares.

          4.2  METHOD OF EXERCISE. Exercise of the Option shall be by written
notice to the Company which must state the election to exercise the Option, the
number of whole shares of Stock for which the Option is being exercised and such
other representations and agreements as to the Optionee's investment intent with
respect to such shares as may be required pursuant to the provisions of this
Option Agreement. The written notice must be signed by the Optionee and must be
delivered in person, by certified or registered mail, return receipt requested,
by confirmed facsimile transmission, or by such other means as the Company may
permit, to the Chief Financial Officer of the Company, or other authorized
representative of the Participating Company Group, prior to the termination of
the Option as set forth in Section 6, accompanied by full payment of the
aggregate Exercise Price for the number of shares of Stock being purchased.

                                       18
<PAGE>
 
The Option shall be deemed to be exercised upon receipt by the Company of such
written notice and the aggregate Exercise Price.

          4.3  PAYMENT OF EXERCISE PRICE.

               (a)  FORMS OF CONSIDERATION AUTHORIZED. Except as otherwise
provided below, payment of the aggregate Exercise Price for the number of shares
of Stock for which the Option is being exercised shall be made (i) in cash, by
check, or cash equivalent, (ii) by tender to the Company of whole shares of
Stock owned by the Optionee having a Fair Market Value (as determined by the
Company without regard to any restrictions on transferability applicable to such
stock by reason of federal or state securities laws or agreements with an
underwriter for the Company) not less than the aggregate Exercise Price, (iii)
by means of a Cashless Exercise, as defined in Section 4.3(c), or (iv) by any
combination of the foregoing.

               (b)  TENDER OF STOCK. Notwithstanding the foregoing, the Option
may not be exercised by tender to the Company of shares of Stock to the extent
such tender of Stock would constitute a violation of the provisions of any law,
regulation or agreement restricting the redemption of the Company's stock. The
Option may not be exercised by tender to the Company of shares of Stock unless
such shares either have been owned by the Optionee for more than six (6) months
or were not acquired, directly or indirectly, from the Company.

               (c)  CASHLESS EXERCISE. A "CASHLESS EXERCISE" means the
assignment in a form acceptable to the Company of the proceeds of a sale or loan
with respect to some or all of the shares of Stock acquired upon the exercise of
the Option pursuant to a program or procedure approved by the Company
(including, without limitation, through an exercise complying with the
provisions of Regulation T as promulgated from time to time by the Board of
Governors of the Federal Reserve System). The Company reserves, at any and all
times, the right, in the Company's sole and absolute discretion, to decline to
approve or terminate any such program or procedure.

          4.4  TAX WITHHOLDING. At the time the Option is exercised, in whole or
in part, or at any time thereafter as requested by the Company, the Optionee
hereby authorizes withholding from payroll and any other amounts payable to the
Optionee, and otherwise agrees to make adequate provision for (including by
means of a Cashless Exercise to the extent permitted by the Company), any sums
required to satisfy the federal, state, local and foreign tax withholding
obligations of the Participating Company Group, if any, which arise in
connection with the Option, including, without limitation, obligations arising
upon (i) the exercise, in whole or in part, of the Option, (ii) the transfer, in
whole or in part, of any shares acquired upon exercise of the Option, (iii) the
operation of any law or regulation providing for the imputation of interest, or
(iv) the lapsing of any restriction with respect to any shares acquired upon
exercise of the Option. The Optionee is cautioned that the Option is not
exercisable unless the tax withholding obligations of the Participating Company
Group are satisfied. Accordingly, the Optionee may not be able to exercise the
Option when desired even though the Option is vested, and the Company shall have
no obligation to issue a certificate for such shares or release such shares from
any escrow provided for herein.

                                       19
<PAGE>
 
          4.5  CERTIFICATE REGISTRATION. Except in the event the Exercise Price
is paid by means of a Cashless Exercise, the certificate for the shares as to
which the Option is exercised shall be registered in the name of the Optionee,
or, if applicable, in the names of the heirs of the Optionee.

          4.6  RESTRICTIONS ON GRANT OF THE OPTION AND ISSUANCE OF SHARES. The
grant of the Option and the issuance of shares of Stock upon exercise of the
Option shall be subject to compliance with all applicable requirements of
federal, state or foreign law with respect to such securities. The Option may
not be exercised if the issuance of shares of Stock upon exercise would
constitute a violation of any applicable federal, state or foreign securities
laws or other law or regulations or the requirements of any stock exchange or
market system upon which the Stock may then be listed. In addition, the Option
may not be exercised unless (i) a registration statement under the Securities
Act shall at the time of exercise of the Option be in effect with respect to the
shares issuable upon exercise of the Option or (ii) in the opinion of legal
counsel to the Company, the shares issuable upon exercise of the Option may be
issued in accordance with the terms of an applicable exemption from the
registration requirements of the Securities Act. THE OPTIONEE IS CAUTIONED THAT
THE OPTION MAY NOT BE EXERCISED UNLESS THE FOREGOING CONDITIONS ARE SATISFIED.
ACCORDINGLY, THE OPTIONEE MAY NOT BE ABLE TO EXERCISE THE OPTION WHEN DESIRED
EVEN THOUGH THE OPTION IS VESTED. Questions concerning this restriction should
be directed to the Chief Financial Officer of the Company. The inability of the
Company to obtain from any regulatory body having jurisdiction the authority, if
any, deemed by the Company's legal counsel to be necessary to the lawful
issuance and sale of any shares subject to the Option shall relieve the Company
of any liability in respect of the failure to issue or sell such shares as to
which such requisite authority shall not have been obtained. As a condition to
the exercise of the Option, the Company may require the Optionee to satisfy any
qualifications that may be necessary or appropriate, to evidence compliance with
any applicable law or regulation and to make any representation or warranty with
respect thereto as may be requested by the Company.

          4.7  FRACTIONAL SHARES.  The Company shall not be required to issue
fractional shares upon the exercise of the Option.

     5.   NONTRANSFERABILITY OF THE OPTION.  The Option may be exercised during
          --------------------------------                                     
the lifetime of the Optionee only by the Optionee or the Optionee's guardian or
legal representative and may not be assigned or transferred in any manner except
by will or by the laws of descent and distribution.  Following the death of the
Optionee, the Option, to the extent provided in Section 7, may be exercised by
the Optionee's legal representative or by any person empowered to do so under
the deceased Optionee's will or under the then applicable laws of descent and
distribution.

     6.   TERMINATION OF THE OPTION.  The Option shall terminate and may no
          -------------------------                                        
longer be exercised on the first to occur of (a) the Option Expiration Date, (b)
the last date for exercising the Option following termination of the Optionee's
Service as described in Section 7, or (c) a Transfer of Control to the extent
provided in Section 8.

                                       20
<PAGE>
 
     7.   EFFECT OF TERMINATION OF SERVICE.
          -------------------------------- 

          7.1  OPTION EXERCISABILITY.

               (a)  DISABILITY. If the Optionee's Service with the Participating
Company Group is terminated because of the Disability of the Optionee, the
Option, to the extent unexercised and exercisable on the date on which the
Optionee's Service terminated, may be exercised by the Optionee (or the
Optionee's guardian or legal representative) at any time prior to the expiration
of twelve (12) months after the date on which the Optionee's Service terminated,
but in any event no later than the Option Expiration Date.

               (b)  DEATH. If the Optionee's Service with the Participating
Company Group is terminated because of the death of the Optionee, the Option, to
the extent unexercised and exercisable on the date on which the Optionee's
Service terminated, may be exercised by the Optionee's legal representative or
other person who acquired the right to exercise the Option by reason of the
Optionee's death at any time prior to the expiration of twelve (12) months after
the date on which the Optionee's Service terminated, but in any event no later
than the Option Expiration Date. The Optionee's Service shall be deemed to have
terminated on account of death if the Optionee dies within three (3) months
after the Optionee's termination of Service.

               (c)  OTHER TERMINATION OF SERVICE. If the Optionee's Service with
the Participating Company Group terminates for any reason, except Disability or
death, the Option, to the extent unexercised and exercisable by the Optionee on
the date on which the Optionee's Service terminated, may be exercised by the
Optionee within three (3) months (or such other longer period of time as
determined by the Board, in its sole discretion) after the date on which the
Optionee's Service terminated, but in any event no later than the Option
Expiration Date.

          7.2  EXTENSION IF EXERCISE PREVENTED BY LAW.  Notwithstanding the
foregoing, if the exercise of the Option within the applicable time periods set
forth in Section 7.1 is prevented by the provisions of Section 4.6, the Option
shall remain exercisable until three (3) months after the date the Optionee is
notified by the Company that the Option is exercisable, but in any event no
later than the Option Expiration Date.  The Company makes no representation as
to the tax consequences of any such delayed exercise.  The Optionee should
consult with the Optionee's own tax advisor as to the tax consequences to the
Optionee of any such delayed exercise.

          7.3  EXTENSION IF OPTIONEE SUBJECT TO SECTION 16(b). Notwithstanding
the foregoing, if a sale within the applicable time periods set forth in Section
7.1 of shares acquired upon the exercise of the Option would subject the
Optionee to suit under Section 16(b) of the Exchange Act, the Option shall
remain exercisable until the earliest to occur of (i) the tenth (10th) day
following the date on which a sale of such shares by the Optionee would no
longer be subject to such suit, (ii) the one hundred and ninetieth (190th) day
after the Optionee's termination of Service, or (iii) the Option Expiration
Date. The Company makes no representation as to the tax consequences of any such
delayed exercise. The Optionee should

                                       21
<PAGE>
 
consult with the Optionee's own tax advisors as to the tax consequences to the
Optionee of any such delayed exercise.

          7.4  LEAVE OF ABSENCE. For purposes of Section 7.1, the Optionee's
Service with the Participating Company Group shall not be deemed to terminate if
the Optionee takes any military leave, sick leave, or other bona fide leave of
absence approved by the Company of ninety (90) days or less. In the event of a
leave of absence in excess of ninety (90) days, the Optionee's Service shall be
deemed to terminate on the ninety-first (91st) day of such leave unless the
Optionee's right to return to Service with the Participating Company Group
remains guaranteed by statute or contract. Notwithstanding the foregoing, unless
otherwise designated by the Company (or required by law), a leave of absence
shall not be treated as Service for purposes of determining the Optionee's
Vested Ratio.

     8.   TRANSFER OF CONTROL.
          ------------------- 

          8.1  DEFINITIONS.

               (a)  An "OWNERSHIP CHANGE EVENT" shall be deemed to have occurred
if any of the following occurs with respect to the Company:

                    (i)   the direct or indirect sale or exchange in a single or
series of related transactions by the stockholders of the Company of more than
fifty percent (50%) of the voting stock of the Company;

                    (ii)  a merger or consolidation in which the Company is a
party;

                    (iii) the sale, exchange, or transfer of all or
substantially all of the assets of the Company; or

                    (iv)  a liquidation or dissolution of the Company.

               (b)  A "TRANSFER OF CONTROL" shall mean an Ownership Change Event
or a series of related Ownership Change Events (collectively, the "TRANSACTION")
wherein the stockholders of the Company immediately before the Transaction do
not retain immediately after the Transaction, in substantially the same
proportions as their ownership of shares of the Company's voting stock
immediately before the Transaction, direct or indirect beneficial ownership of
more than fifty percent (50%) of the total combined voting power of the
outstanding voting stock of the Company or the corporation or corporations to
which the assets of the Company were transferred (the "TRANSFEREE
CORPORATION(S)"), as the case may be. For purposes of the preceding sentence,
indirect beneficial ownership shall include, without limitation, an interest
resulting from ownership of the voting stock of one or more corporations which,
as a result of the Transaction, own the Company or the Transferee
Corporation(s), as the case may be, either directly or through one or more
subsidiary corporations. The Board shall have the right to determine whether
multiple sales or exchanges of the voting stock of the

                                       22
<PAGE>
 
Company or multiple Ownership Change Events are related, and its determination
shall be final, binding and conclusive.

          8.2  EFFECT OF TRANSFER OF CONTROL ON OPTION. In the event of a
Transfer of Control, the surviving, continuing, successor, or purchasing
corporation or parent corporation thereof, as the case may be (the "ACQUIRING
CORPORATION"), may either assume the Company's rights and obligations under the
Option or substitute for the Option a substantially equivalent option for the
Acquiring Corporation's stock. For purposes of this Section 8.2, an Option shall
be deemed assumed if, following the Transfer of Control, the Option confers the
right to purchase, for each share of Stock subject to the Option immediately
prior to the Transfer of Control, the consideration (whether stock, cash or
other securities or property) to which a holder of a share of Stock on the
effective date of the Transfer of Control was entitled. In the event the
Acquiring Corporation elects not to assume the Company's rights and obligations
under the Option or substitute for the Option in connection with the Transfer of
Control, any unexercised portion of the Option shall be immediately exercisable
and vested in full as of the date ten (10) days prior to the date of the
Transfer of Control. Any exercise of the Option that was permissible solely by
reason of this Section 8.2 shall be conditioned upon the consummation of the
Transfer of Control. The Option shall terminate and cease to be outstanding
effective as of the date of the Transfer of Control to the extent that the
Option is neither assumed or substituted for by the Acquiring Corporation in
connection with the Transfer of Control nor exercised as of the date of the
Transfer of Control. Notwithstanding the foregoing, shares acquired upon
exercise of the Option prior to the Transfer of Control and any consideration
received pursuant to the Transfer of Control with respect to such shares shall
continue to be subject to all applicable provisions of this Option Agreement
except as otherwise provided herein. Furthermore, notwithstanding the foregoing,
if the corporation the stock of which is subject to the Option immediately prior
to an Ownership Change Event described in Section 8.1(a)(i) constituting a
Transfer of Control is the surviving or continuing corporation and immediately
after such Ownership Change Event less than fifty percent (50%) of the total
combined voting power of its voting stock is held by another corporation or by
other corporations that are members of an affiliated group within the meaning of
Section 1504(a) of the Code without regard to the provisions of Section 1504(b)
of the Code, the Option shall not terminate unless the Board otherwise provides
in its sole discretion.

          8.3  FAIR MARKET VALUE LIMITATION.  Should the exercisability of this
Option be accelerated in connection with a Transfer of Control in accordance
with Section 8.2, then to the extent that the aggregate Fair Market Value of the
shares of Stock with respect to which the Optionee may exercise the Option for
the first time during the calendar year of the Transfer of Control, when added
to the aggregate Fair Market Value of the shares subject to any other options
designated as Incentive Stock Options granted to the Optionee under all stock
option plans of the Participating Company Group prior to the Date of Option
Grant with respect to which such options are exercisable for the first time
during the same calendar year, exceeds One Hundred Thousand Dollars ($100,000)
(or such other limit, if any, imposed by Section 422 of the Code), the portion
of the Option which exceeds such amount shall be treated as a Nonstatutory Stock
Option.  For purposes of the preceding sentence, options designated as Incentive
Stock Options shall be taken into account in the order in which they were
granted, and the Fair Market 

                                       23
<PAGE>
 
Value of shares of stock shall be determined as of the time the option with
respect to such shares is granted.

     9.   ADJUSTMENTS FOR CHANGES IN CAPITAL STRUCTURE.  In the event of any
          --------------------------------------------                      
stock dividend, stock split, reverse stock split, recapitalization, combination,
reclassification, or similar change in the capital structure of the Company,
appropriate adjustments shall be made in the number, Exercise Price and class of
shares of stock subject to the Option.  If a majority of the shares which are of
the same class as the shares that are subject to the Option are exchanged for,
converted into, or otherwise become (whether or not pursuant to an Ownership
Change Event) shares of another corporation (the "NEW SHARES"), the Board may
unilaterally amend the Option to provide that the Option is exercisable for New
Shares.  In the event of any such amendment, the Number of Option Shares and the
Exercise Price shall be adjusted in a fair and equitable manner, as determined
by the Board, in its sole discretion.  Notwithstanding the foregoing, any
fractional share resulting from an adjustment pursuant to this Section 9 shall
be rounded up or down to the nearest whole number, as determined by the Board,
and in no event may the Exercise Price be decreased to an amount less than the
par value, if any, of the stock subject to the Option.  The adjustments
determined by the Board pursuant to this Section 9 shall be final, binding and
conclusive.

     10.  RIGHTS AS A STOCKHOLDER, EMPLOYEE OR CONSULTANT.  The Optionee shall
          -----------------------------------------------                     
have no rights as a stockholder with respect to any shares covered by the Option
until the date of the issuance of a certificate for the shares for which the
Option has been exercised (as evidenced by the appropriate entry on the books of
the Company or of a duly authorized transfer agent of the Company).  No
adjustment shall be made for dividends, distributions or other rights for which
the record date is prior to the date such certificate is issued, except as
provided in Section 9.  Nothing in this Option Agreement shall confer upon the
Optionee any right to continue in the Service of a Participating Company or
interfere in any way with any right of the Participating Company Group to
terminate the Optionee's Service as an Employee or Consultant, as the case may
be, at any time.

     11.  NOTICE OF SALES UPON DISQUALIFYING DISPOSITION.  The Optionee shall
          ----------------------------------------------                     
dispose of the shares acquired pursuant to the Option only in accordance with
the provisions of this Option Agreement.  In addition, the Optionee shall
promptly notify the Chief Financial Officer of the Company if the Optionee
disposes of any of the shares acquired pursuant to the Option within one (1)
year after the date the Optionee exercises all or part of the Option or within
two (2) years after the Date of Option Grant and shall provide the Company with
a description of the terms and circumstances of such disposition.  Until such
time as the Optionee disposes of such shares in a manner consistent with the
provisions of this Option Agreement, unless otherwise expressly authorized by
the Company, the Optionee shall hold all shares acquired pursuant to the Option
in the Optionee's name (and not in the name of any nominee) for the one-year
period immediately after the exercise of the Option and the two-year period
immediately after Date of Option Grant.  At any time during the one-year or two-
year periods set forth above, the Company may place a legend on any certificate
representing shares acquired pursuant to the Option requesting the transfer
agent for the Company's stock to notify the Company of any such transfers.  The
obligation of the Optionee to notify the Company of any such transfer shall
continue 

                                       24
<PAGE>
 
notwithstanding that a legend has been placed on the certificate pursuant to the
preceding sentence.

     12.  LEGENDS.  The Company may at any time place legends referencing any
          -------                                                            
applicable federal, state or foreign securities law restrictions on all
certificates representing shares of stock subject to the provisions of this
Option Agreement.  The Optionee shall, at the request of the Company, promptly
present to the Company any and all certificates representing shares acquired
pursuant to the Option in the possession of the Optionee in order to carry out
the provisions of this Section.

     13.  RESTRICTIONS ON TRANSFER OF SHARES.  No shares acquired upon exercise
          ----------------------------------                                   
of the Option may be sold, exchanged, transferred (including, without
limitation, any transfer to a nominee or agent of the Optionee), assigned,
pledged, hypothecated or otherwise disposed of, including by operation of law,
in any manner which violates any of the provisions of this Option Agreement, and
any such attempted disposition shall be void.  The Company shall not be required
(a) to transfer on its books any shares which will have been transferred in
violation of any of the provisions set forth in this Option Agreement or (b) to
treat as owner of such shares or to accord the right to vote as such owner or to
pay dividends to any transferee to whom such shares will have been so
transferred.

     14.  BINDING EFFECT.  Subject to the restrictions on transfer set forth
          --------------                                                    
herein, this Option Agreement shall inure to the benefit of and be binding upon
the parties hereto and their respective heirs, executors, administrators,
successors and assigns.

     15.  TERMINATION OR AMENDMENT.  The Board may terminate or amend the Plan
          ------------------------                                            
or the Option at any time; provided, however, that except as provided in Section
8.2 in connection with a Transfer of Control, no such termination or amendment
may adversely affect the Option or any unexercised portion hereof without the
consent of the Optionee unless such termination or amendment is necessary to
comply with any applicable law or government regulation or is required to enable
the Option to qualify as an Incentive Stock Option.  No amendment or addition to
this Option Agreement shall be effective unless in writing.

     16.  INTEGRATED AGREEMENT.  This Option Agreement constitutes the entire
          --------------------                                               
understanding and agreement of the Optionee and the Participating Company Group
with respect to the subject matter contained herein, and there are no
agreements, understandings, restrictions, representations, or warranties among
the Optionee and the Participating Company Group with respect to such subject
matter other than those as set forth or provided for herein, except for the
provisions set forth in a change of control agreement between the Company and
the Optionee, if any.  To the extent contemplated herein, the provisions of this
Option Agreement shall survive any exercise of the Option and shall remain in
full force and effect.

     17.  APPLICABLE LAW.  This Option Agreement shall be governed by the laws
          --------------                                                      
of the State of California as such laws are applied to agreements between
California residents entered into and to be performed entirely within the State
of California.

                                       25
<PAGE>
 
                                    CONSILIUM, INC.



                                    By:_________________________________

                                    Title:______________________________



     The Optionee represents that the Optionee is familiar with the terms and
provisions of this Option Agreement and hereby accepts the Option subject to all
of the terms and provisions thereof.  The Optionee hereby agrees to accept as
binding, conclusive and final all decisions or interpretations of the Board upon
any questions arising under this Option Agreement.


                                    OPTIONEE



Date:___________________________    ____________________________________

                                       26
<PAGE>
 
                                CONSILIUM, INC.

                       INCENTIVE STOCK OPTION AGREEMENT

                                 (NON-OFFICER)


     THIS INCENTIVE STOCK OPTION AGREEMENT (the "OPTION AGREEMENT") is made and
entered into as of ___________, 199_, by and between Consilium, Inc. and
___________________________ (the "OPTIONEE").

     The Company has granted to the Optionee pursuant to the Consilium, Inc.
1996 Stock Option Plan an option to purchase certain shares of Stock upon the
terms and conditions set forth in this Option Agreement (the "OPTION").

     1.   DEFINITIONS AND CONSTRUCTION.
          ---------------------------- 

          1.1  DEFINITIONS.  Whenever used herein, the following terms shall
have their respective meanings set forth below:

               (a)  "DATE OF OPTION GRANT" means ________________________ ,
199_.

               (b)  "NUMBER OF OPTION SHARES" means ___________________ shares
of Stock, as adjusted from time to time pursuant to Section 9.

               (c)  "EXERCISE PRICE" means $ ____________ per share of Stock, as
adjusted from time to time pursuant to Section 9.

               (d)  "INITIAL EXERCISE DATE" means the Initial Vesting Date.

               (e)  "INITIAL VESTING DATE" means the date occurring one (1) year
after (check one):

                    __   the Date of Option Grant.

                    __   __________________ , 199_, the date the Optionee's
                         Service commenced.

                                       27
<PAGE>
 
               (f)  "VESTED RATIO" means, on any relevant date, the ratio
determined as follows:

<TABLE>
<CAPTION>
                                                          Vested Ratio
                                                          ------------
               <S>                                        <C>         
               Prior to Initial Vesting Date                         0
                                                                      
               On Initial Vesting Date, provided the               1/4
               Optionee's Service is continuous from                  
               the Date of Option Grant until the                     
               Initial Vesting Date                                   
                                                                      
               Plus                                                   
               ----                                                   
                                                                      
               For each full month of the Optionee's              1/48
               continuous Service from the Initial                    
               Vesting Date until the Vested Ratio                    
               equals 1/1, an additional                               
</TABLE>

               (g)  "OPTION EXPIRATION DATE" means the date ten (10) years after
the Date of Option Grant.

               (h)  "BOARD" means the Board of Directors of the Company. If one
or more Committees have been appointed by the Board to administer the Plan,
"Board" shall also mean such Committee(s).

               (i)  "CODE" means the Internal Revenue Code of 1986, as amended,
and any applicable regulations promulgated thereunder.

               (j)  "COMMITTEE" means the Compensation Committee or other
committee of the Board duly appointed to administer the Plan and having such
powers as shall be specified by the Board. Unless the powers of the Committee
have been specifically limited, the Committee shall have all of the powers of
the Board granted in the Plan, including, without limitation, the power to amend
or terminate the Plan at any time, subject to the terms of the Plan and any
applicable limitations imposed by law.

               (k)  "COMPANY" means Consilium, Inc., a Delaware corporation, or
any successor corporation thereto.

               (l)  "CONSULTANT" means any person, including an advisor, engaged
by a Participating Company to render services other than as an Employee or a
Director.

               (m)  "DIRECTOR" means a member of the Board or of the board of
directors of any other Participating Company.

                                       28
<PAGE>
 
               (n)  "DISABILITY" means the permanent and total disability of the
Optionee within the meaning of Section 22(e)(3) of the Code.

               (o)  "EMPLOYEE" means any person treated as an employee
(including an officer or a Director who is also treated as an employee) in the
records of a Participating Company; provided, however, that neither service as a
Director nor payment of a director's fee shall be sufficient to constitute
employment for this purpose.

               (p)  "EXCHANGE ACT" means the Securities Exchange Act of 1934, as
amended.

               (q)  "FAIR MARKET VALUE" means, as of any date, the value of a
share of Stock or other property as determined by the Board, in its sole
discretion, or by the Company, in its sole discretion, if such determination is
expressly allocated to the Company herein, subject to the following:

                    (i)  If, on such date, there is a public market for the
Stock, the Fair Market Value of a share of Stock shall be the closing sale price
of a share of Stock (or the mean of the closing bid and asked prices of a share
of Stock if the Stock is so quoted instead) as quoted on the Nasdaq National
Market, the Nasdaq Small-Cap Market or such other national or regional
securities exchange or market system constituting the primary market for the
Stock, as reported in the Wall Street Journal or such other source as the
                          ------------------- 
Company deems reliable. If the relevant date does not fall on a day on which the
Stock has traded on such securities exchange or market system, the date on which
the Fair Market Value shall be established shall be the last day on which the
Stock was so traded prior to the relevant date, or such other appropriate day as
shall be determined by the Board, in its sole discretion.

                    (ii) If, on such date, there is no public market for the
Stock, the Fair Market Value of a share of Stock shall be as determined by the
Board without regard to any restriction other than a restriction which, by its
terms, will never lapse.

               (r)  "PARENT CORPORATION" means any present or future "parent
corporation" of the Company, as defined in Section 424(e) of the Code.

               (s)  "PARTICIPATING COMPANY" means the Company or any Parent
Corporation or Subsidiary Corporation.

               (t)  "PARTICIPATING COMPANY GROUP" means, at any point in time,
all corporations collectively which are then Participating Companies.

               (u)  "PLAN" means the Consilium, Inc. 1996 Stock Option Plan.

               (v)  "RULE 16b-3" means Rule 16b-3 under the Exchange Act, as
amended from time to time, or any successor rule or regulation.

                                       29
<PAGE>
 
               (w)  "SECURITIES ACT" means the Securities Act of 1933, as
amended.

               (x)  "SERVICE" means the Optionee's employment or service with
the Participating Company Group, whether in the capacity of an Employee, a
Director or a Consultant. The Optionee's Service shall not be deemed to have
terminated merely because of a change in the capacity in which the Optionee
renders Service to the Participating Company Group or a change in the
Participating Company for which the Optionee renders such Service, provided that
there is no interruption or termination of the Optionee's Service. The
Optionee's Service shall be deemed to have terminated either upon an actual
termination of Service or upon the corporation for which the Optionee performs
Service ceasing to be a Participating Company. Subject to the foregoing, the
Company, in its sole discretion, shall determine whether the Optionee's Service
has terminated and the effective date of such termination. (NOTE: If the Option
is exercised more than three (3) months after the date on which the Optionee
ceased to be an Employee (other than by reason of death or a permanent and total
disability as defined in Section 22(e)(3) of the Code), the Option will be
treated as a nonstatutory stock option and not as an incentive stock option to
the extent required by Section 422 of the Code.)

               (y)  "STOCK" means the common stock, par value $0.01, of the
Company, as adjusted from time to time in accordance with Section 9.

               (z)  "SUBSIDIARY CORPORATION" means any present or future
"subsidiary corporation" of the Company, as defined in Section 424(f) of the
Code.

          1.2  CONSTRUCTION.  Captions and titles contained herein are for
convenience only and shall not affect the meaning or interpretation of any
provision of this Option Agreement.  Except when otherwise indicated by the
context, the singular shall include the plural and the plural shall include the
singular.  Use of the term "or" is not intended to be exclusive, unless the
context clearly requires otherwise.

     2.   TAX CONSEQUENCES.
          ---------------- 

          2.1  TAX STATUS OF OPTION.  This Option is intended to be an incentive
stock option within the meaning of Section 422(b) of the Code (an "INCENTIVE
STOCK OPTION"), but the Company does not represent or warrant that this Option
qualifies as such.  The Optionee should consult with the Optionee's own tax
advisor regarding the tax effects of this Option and the requirements necessary
to obtain favorable income tax treatment under Section 422 of the Code,
including, but not limited to, holding period requirements.  (NOTE: If the
aggregate Exercise Price of the Option (that is, the Exercise Price multiplied
by the Number of Option Shares) plus the aggregate exercise price of any other
Incentive Stock Options held by the Optionee (whether granted pursuant to the
Plan or any other stock option plan of the Participating Company Group) is
greater than One Hundred Thousand Dollars ($100,000), the Optionee should
contact the Chief Financial Officer of the Company to ascertain whether the
entire Option qualifies as an Incentive Stock Option.)

                                       30
<PAGE>
 
          2.2  ELECTION UNDER SECTION 83(B) OF THE CODE. If the Optionee
exercises this Option to purchase shares of Stock that are both nontransferable
and subject to a substantial risk of forfeiture, the Optionee understands that
the Optionee should consult with the Optionee's tax advisor regarding the
advisability of filing with the Internal Revenue Service an election under
Section 83(b) of the Code, which must be filed no later than thirty (30) days
after the date on which the Optionee exercises the Option. Shares acquired upon
exercise of the Option are nontransferable and subject to a substantial risk of
forfeiture if, for example, (a) they are unvested and are subject to a right of
the Company to repurchase such shares at the Optionee's original purchase price
if the Optionee's Service terminates, or (b) the Optionee is subject to a
restriction on transfer to comply with "Pooling-of-Interests Accounting" rules.
Failure to file an election under Section 83(b), if appropriate, may result in
adverse tax consequences to the Optionee. The Optionee acknowledges that the
Optionee has been advised to consult with a tax advisor prior to the exercise of
the Option regarding the tax consequences to the Optionee of the exercise of the
Option. AN ELECTION UNDER SECTION 83(b) MUST BE FILED WITHIN 30 DAYS AFTER THE
DATE ON WHICH THE OPTIONEE PURCHASES SHARES. THIS TIME PERIOD CANNOT BE
EXTENDED. THE OPTIONEE ACKNOWLEDGES THAT TIMELY FILING OF A SECTION 83(b)
ELECTION IS THE OPTIONEE'S SOLE RESPONSIBILITY, EVEN IF THE OPTIONEE REQUESTS
THE COMPANY OR ITS REPRESENTATIVE TO FILE SUCH ELECTION ON HIS OR HER BEHALF.

     3.   ADMINISTRATION.  All questions of interpretation concerning this
          --------------                                                  
Option Agreement shall be determined by the Board, including any duly appointed
Committee of the Board.  All determinations by the Board shall be final and
binding upon all persons having an interest in the Option.  Any officer of a
Participating Company shall have the authority to act on behalf of the Company
with respect to any matter, right, obligation, or election which is the
responsibility of or which is allocated to the Company herein, provided the
officer has apparent authority with respect to such matter, right, obligation,
or election.

     4.   EXERCISE OF THE OPTION.
          ---------------------- 

          4.1  RIGHT TO EXERCISE. Except as otherwise provided herein, the
Option shall be exercisable on and after the Initial Exercise Date and prior to
the termination of the Option (as provided in Section 6) in an amount not to
exceed the Number of Option Shares multiplied by the Vested Ratio less the
number of shares previously acquired upon exercise of the Option. In no event
shall the Option be exercisable for more shares than the Number of Option
Shares.

          4.2  METHOD OF EXERCISE. Exercise of the Option shall be by written
notice to the Company which must state the election to exercise the Option, the
number of whole shares of Stock for which the Option is being exercised and such
other representations and agreements as to the Optionee's investment intent with
respect to such shares as may be required pursuant to the provisions of this
Option Agreement. The written notice must be signed by the Optionee and must be
delivered in person, by certified or registered mail, return receipt requested,
by confirmed facsimile transmission, or by such other means as the Company may
permit, to the Chief Financial Officer of the Company, or other authorized
representative of the Participating

                                       31
<PAGE>
 
Company Group, prior to the termination of the Option as set forth in Section 6,
accompanied by full payment of the aggregate Exercise Price for the number of
shares of Stock being purchased. The Option shall be deemed to be exercised upon
receipt by the Company of such written notice and the aggregate Exercise Price.

          4.3  PAYMENT OF EXERCISE PRICE.

               (a)  FORMS OF CONSIDERATION AUTHORIZED. Except as otherwise
provided below, payment of the aggregate Exercise Price for the number of shares
of Stock for which the Option is being exercised shall be made (i) in cash, by
check, or cash equivalent, (ii) by tender to the Company of whole shares of
Stock owned by the Optionee having a Fair Market Value (as determined by the
Company without regard to any restrictions on transferability applicable to such
stock by reason of federal or state securities laws or agreements with an
underwriter for the Company) not less than the aggregate Exercise Price, (iii)
by means of a Cashless Exercise, as defined in Section 4.3(c), or (iv) by any
combination of the foregoing.

               (b)  TENDER OF STOCK. Notwithstanding the foregoing, the Option
may not be exercised by tender to the Company of shares of Stock to the extent
such tender of Stock would constitute a violation of the provisions of any law,
regulation or agreement restricting the redemption of the Company's stock. The
Option may not be exercised by tender to the Company of shares of Stock unless
such shares either have been owned by the Optionee for more than six (6) months
or were not acquired, directly or indirectly, from the Company.

               (c)  CASHLESS EXERCISE. A "CASHLESS EXERCISE" means the
assignment in a form acceptable to the Company of the proceeds of a sale or loan
with respect to some or all of the shares of Stock acquired upon the exercise of
the Option pursuant to a program or procedure approved by the Company
(including, without limitation, through an exercise complying with the
provisions of Regulation T as promulgated from time to time by the Board of
Governors of the Federal Reserve System). The Company reserves, at any and all
times, the right, in the Company's sole and absolute discretion, to decline to
approve or terminate any such program or procedure.

          4.4  TAX WITHHOLDING. At the time the Option is exercised, in whole or
in part, or at any time thereafter as requested by the Company, the Optionee
hereby authorizes withholding from payroll and any other amounts payable to the
Optionee, and otherwise agrees to make adequate provision for (including by
means of a Cashless Exercise to the extent permitted by the Company), any sums
required to satisfy the federal, state, local and foreign tax withholding
obligations of the Participating Company Group, if any, which arise in
connection with the Option, including, without limitation, obligations arising
upon (i) the exercise, in whole or in part, of the Option, (ii) the transfer, in
whole or in part, of any shares acquired upon exercise of the Option, (iii) the
operation of any law or regulation providing for the imputation of interest, or
(iv) the lapsing of any restriction with respect to any shares acquired upon
exercise of the Option. The Optionee is cautioned that the Option is not
exercisable unless the tax withholding obligations of the Participating Company
Group are satisfied. Accordingly, the

                                       32
<PAGE>
 
Optionee may not be able to exercise the Option when desired even though the
Option is vested, and the Company shall have no obligation to issue a
certificate for such shares or release such shares from any escrow provided for
herein.

          4.5  CERTIFICATE REGISTRATION. Except in the event the Exercise Price
is paid by means of a Cashless Exercise, the certificate for the shares as to
which the Option is exercised shall be registered in the name of the Optionee,
or, if applicable, in the names of the heirs of the Optionee.

          4.6  RESTRICTIONS ON GRANT OF THE OPTION AND ISSUANCE OF SHARES. The
grant of the Option and the issuance of shares of Stock upon exercise of the
Option shall be subject to compliance with all applicable requirements of
federal, state or foreign law with respect to such securities. The Option may
not be exercised if the issuance of shares of Stock upon exercise would
constitute a violation of any applicable federal, state or foreign securities
laws or other law or regulations or the requirements of any stock exchange or
market system upon which the Stock may then be listed. In addition, the Option
may not be exercised unless (i) a registration statement under the Securities
Act shall at the time of exercise of the Option be in effect with respect to the
shares issuable upon exercise of the Option or (ii) in the opinion of legal
counsel to the Company, the shares issuable upon exercise of the Option may be
issued in accordance with the terms of an applicable exemption from the
registration requirements of the Securities Act. THE OPTIONEE IS CAUTIONED THAT
THE OPTION MAY NOT BE EXERCISED UNLESS THE FOREGOING CONDITIONS ARE SATISFIED.
ACCORDINGLY, THE OPTIONEE MAY NOT BE ABLE TO EXERCISE THE OPTION WHEN DESIRED
EVEN THOUGH THE OPTION IS VESTED. Questions concerning this restriction should
be directed to the Chief Financial Officer of the Company. The inability of the
Company to obtain from any regulatory body having jurisdiction the authority, if
any, deemed by the Company's legal counsel to be necessary to the lawful
issuance and sale of any shares subject to the Option shall relieve the Company
of any liability in respect of the failure to issue or sell such shares as to
which such requisite authority shall not have been obtained. As a condition to
the exercise of the Option, the Company may require the Optionee to satisfy any
qualifications that may be necessary or appropriate, to evidence compliance with
any applicable law or regulation and to make any representation or warranty with
respect thereto as may be requested by the Company.

          4.7  FRACTIONAL SHARES.  The Company shall not be required to issue
fractional shares upon the exercise of the Option.

     5.   NONTRANSFERABILITY OF THE OPTION.  The Option may be exercised during
          --------------------------------                                     
the lifetime of the Optionee only by the Optionee or the Optionee's guardian or
legal representative and may not be assigned or transferred in any manner except
by will or by the laws of descent and distribution.  Following the death of the
Optionee, the Option, to the extent provided in Section 7, may be exercised by
the Optionee's legal representative or by any person empowered to do so under
the deceased Optionee's will or under the then applicable laws of descent and
distribution.

                                       33
<PAGE>
 
     6.   TERMINATION OF THE OPTION.  The Option shall terminate and may no
          -------------------------                                        
longer be exercised on the first to occur of (a) the Option Expiration Date, (b)
the last date for exercising the Option following termination of the Optionee's
Service as described in Section 7, or (c) a Transfer of Control to the extent
provided in Section 8.

     7.   EFFECT OF TERMINATION OF SERVICE.
          -------------------------------- 

          7.1  OPTION EXERCISABILITY.

               (a)  DISABILITY. If the Optionee's Service with the Participating
Company Group is terminated because of the Disability of the Optionee, the
Option, to the extent unexercised and exercisable on the date on which the
Optionee's Service terminated, may be exercised by the Optionee (or the
Optionee's guardian or legal representative) at any time prior to the expiration
of twelve (12) months after the date on which the Optionee's Service terminated,
but in any event no later than the Option Expiration Date.

               (b)  DEATH. If the Optionee's Service with the Participating
Company Group is terminated because of the death of the Optionee, the Option, to
the extent unexercised and exercisable on the date on which the Optionee's
Service terminated, may be exercised by the Optionee's legal representative or
other person who acquired the right to exercise the Option by reason of the
Optionee's death at any time prior to the expiration of twelve (12) months after
the date on which the Optionee's Service terminated, but in any event no later
than the Option Expiration Date. The Optionee's Service shall be deemed to have
terminated on account of death if the Optionee dies within three (3) months
after the Optionee's termination of Service.

               (c)  OTHER TERMINATION OF SERVICE. If the Optionee's Service with
the Participating Company Group terminates for any reason, except Disability or
death, the Option, to the extent unexercised and exercisable by the Optionee on
the date on which the Optionee's Service terminated, may be exercised by the
Optionee within three (3) months (or such other longer period of time as
determined by the Board, in its sole discretion) after the date on which the
Optionee's Service terminated, but in any event no later than the Option
Expiration Date.

          7.2  EXTENSION IF EXERCISE PREVENTED BY LAW.  Notwithstanding the
foregoing, if the exercise of the Option within the applicable time periods set
forth in Section 7.1 is prevented by the provisions of Section 4.6, the Option
shall remain exercisable until three (3) months after the date the Optionee is
notified by the Company that the Option is exercisable, but in any event no
later than the Option Expiration Date.  The Company makes no representation as
to the tax consequences of any such delayed exercise.  The Optionee should
consult with the Optionee's own tax advisor as to the tax consequences to the
Optionee of any such delayed exercise.

          7.3  EXTENSION IF OPTIONEE SUBJECT TO SECTION 16(B). Notwithstanding
the foregoing, if a sale within the applicable time periods set forth in Section
7.1 of shares acquired upon the exercise of the Option would subject the
Optionee to suit under Section 16(b) of the

                                       34
<PAGE>
 
Exchange Act, the Option shall remain exercisable until the earliest to occur of
(i) the tenth (10th) day following the date on which a sale of such shares by
the Optionee would no longer be subject to such suit, (ii) the one hundred and
ninetieth (190th) day after the Optionee's termination of Service, or (iii) the
Option Expiration Date. The Company makes no representation as to the tax
consequences of any such delayed exercise. The Optionee should consult with the
Optionee's own tax advisors as to the tax consequences to the Optionee of any
such delayed exercise.

          7.4  LEAVE OF ABSENCE. For purposes of Section 7.1, the Optionee's
Service with the Participating Company Group shall not be deemed to terminate if
the Optionee takes any military leave, sick leave, or other bona fide leave of
absence approved by the Company of ninety (90) days or less. In the event of a
leave of absence in excess of ninety (90) days, the Optionee's Service shall be
deemed to terminate on the ninety-first (91st) day of such leave unless the
Optionee's right to return to Service with the Participating Company Group
remains guaranteed by statute or contract. Notwithstanding the foregoing, unless
otherwise designated by the Company (or required by law), a leave of absence
shall not be treated as Service for purposes of determining the Optionee's
Vested Ratio.

     8.   TRANSFER OF CONTROL.
          ------------------- 

          8.1  DEFINITIONS.

               (a)  An "OWNERSHIP CHANGE EVENT" shall be deemed to have occurred
if any of the following occurs with respect to the Company:

                    (i)   the direct or indirect sale or exchange in a single or
series of related transactions by the stockholders of the Company of more than
fifty percent (50%) of the voting stock of the Company;

                    (ii)  a merger or consolidation in which the Company is a
party;

                    (iii) the sale, exchange, or transfer of all or
substantially all of the assets of the Company; or

                    (iv)  a liquidation or dissolution of the Company.

               (b)  A "TRANSFER OF CONTROL" shall mean an Ownership Change Event
or a series of related Ownership Change Events (collectively, the "TRANSACTION")
wherein the stockholders of the Company immediately before the Transaction do
not retain immediately after the Transaction, in substantially the same
proportions as their ownership of shares of the Company's voting stock
immediately before the Transaction, direct or indirect beneficial ownership of
more than fifty percent (50%) of the total combined voting power of the
outstanding voting stock of the Company or the corporation or corporations to
which the assets of the Company were transferred (the "TRANSFEREE
CORPORATION(S)"), as the case may be. For

                                       35
<PAGE>
 
purposes of the preceding sentence, indirect beneficial ownership shall include,
without limitation, an interest resulting from ownership of the voting stock of
one or more corporations which, as a result of the Transaction, own the Company
or the Transferee Corporation(s), as the case may be, either directly or through
one or more subsidiary corporations. The Board shall have the right to determine
whether multiple sales or exchanges of the voting stock of the Company or
multiple Ownership Change Events are related, and its determination shall be
final, binding and conclusive.

          8.2  EFFECT OF TRANSFER OF CONTROL ON OPTION. In the event of a
Transfer of Control, the surviving, continuing, successor, or purchasing
corporation or parent corporation thereof, as the case may be (the "ACQUIRING
CORPORATION"), may either assume the Company's rights and obligations under the
Option or substitute for the Option a substantially equivalent option for the
Acquiring Corporation's stock. For purposes of this Section 8.2, an Option shall
be deemed assumed if, following the Transfer of Control, the Option confers the
right to purchase, for each share of Stock subject to the Option immediately
prior to the Transfer of Control, the consideration (whether stock, cash or
other securities or property) to which a holder of a share of Stock on the
effective date of the Transfer of Control was entitled. In the event the
Acquiring Corporation elects not to assume the Company's rights and obligations
under the Option or substitute for the Option in connection with the Transfer of
Control, any unexercised portion of the Option shall be immediately exercisable
and vested in full as of the date ten (10) days prior to the date of the
Transfer of Control. Any exercise of the Option that was permissible solely by
reason of this Section 8.2 shall be conditioned upon the consummation of the
Transfer of Control. The Option shall terminate and cease to be outstanding
effective as of the date of the Transfer of Control to the extent that the
Option is neither assumed or substituted for by the Acquiring Corporation in
connection with the Transfer of Control nor exercised as of the date of the
Transfer of Control. Notwithstanding the foregoing, shares acquired upon
exercise of the Option prior to the Transfer of Control and any consideration
received pursuant to the Transfer of Control with respect to such shares shall
continue to be subject to all applicable provisions of this Option Agreement
except as otherwise provided herein. Furthermore, notwithstanding the foregoing,
if the corporation the stock of which is subject to the Option immediately prior
to an Ownership Change Event described in Section 8.1(a)(i) constituting a
Transfer of Control is the surviving or continuing corporation and immediately
after such Ownership Change Event less than fifty percent (50%) of the total
combined voting power of its voting stock is held by another corporation or by
other corporations that are members of an affiliated group within the meaning of
Section 1504(a) of the Code without regard to the provisions of Section 1504(b)
of the Code, the Option shall not terminate unless the Board otherwise provides
in its sole discretion.

          8.3  FAIR MARKET VALUE LIMITATION.  Should the exercisability of this
Option be accelerated in connection with a Transfer of Control in accordance
with Section 8.2, then to the extent that the aggregate Fair Market Value of the
shares of Stock with respect to which the Optionee may exercise the Option for
the first time during the calendar year of the Transfer of Control, when added
to the aggregate Fair Market Value of the shares subject to any other options
designated as Incentive Stock Options granted to the Optionee under all stock
option plans of the Participating Company Group prior to the Date of Option
Grant with respect to 

                                       36
<PAGE>
 
which such options are exercisable for the first time during the same calendar
year, exceeds One Hundred Thousand Dollars ($100,000) (or such other limit, if
any, imposed by Section 422 of the Code), the portion of the Option which
exceeds such amount shall be treated as a Nonstatutory Stock Option. For
purposes of the preceding sentence, options designated as Incentive Stock
Options shall be taken into account in the order in which they were granted, and
the Fair Market Value of shares of stock shall be determined as of the time the
option with respect to such shares is granted.

     9.   ADJUSTMENTS FOR CHANGES IN CAPITAL STRUCTURE.  In the event of any
          --------------------------------------------                      
stock dividend, stock split, reverse stock split, recapitalization, combination,
reclassification, or similar change in the capital structure of the Company,
appropriate adjustments shall be made in the number, Exercise Price and class of
shares of stock subject to the Option.  If a majority of the shares which are of
the same class as the shares that are subject to the Option are exchanged for,
converted into, or otherwise become (whether or not pursuant to an Ownership
Change Event) shares of another corporation (the "NEW SHARES"), the Board may
unilaterally amend the Option to provide that the Option is exercisable for New
Shares.  In the event of any such amendment, the Number of Option Shares and the
Exercise Price shall be adjusted in a fair and equitable manner, as determined
by the Board, in its sole discretion.  Notwithstanding the foregoing, any
fractional share resulting from an adjustment pursuant to this Section 9 shall
be rounded up or down to the nearest whole number, as determined by the Board,
and in no event may the Exercise Price be decreased to an amount less than the
par value, if any, of the stock subject to the Option.  The adjustments
determined by the Board pursuant to this Section 9 shall be final, binding and
conclusive.

     10.  RIGHTS AS A STOCKHOLDER, EMPLOYEE OR CONSULTANT.  The Optionee shall
          -----------------------------------------------                     
have no rights as a stockholder with respect to any shares covered by the Option
until the date of the issuance of a certificate for the shares for which the
Option has been exercised (as evidenced by the appropriate entry on the books of
the Company or of a duly authorized transfer agent of the Company).  No
adjustment shall be made for dividends, distributions or other rights for which
the record date is prior to the date such certificate is issued, except as
provided in Section 9.  Nothing in this Option Agreement shall confer upon the
Optionee any right to continue in the Service of a Participating Company or
interfere in any way with any right of the Participating Company Group to
terminate the Optionee's Service as an Employee or Consultant, as the case may
be, at any time.

     11.  NOTICE OF SALES UPON DISQUALIFYING DISPOSITION.  The Optionee shall
          ----------------------------------------------                     
dispose of the shares acquired pursuant to the Option only in accordance with
the provisions of this Option Agreement.  In addition, the Optionee shall
promptly notify the Chief Financial Officer of the Company if the Optionee
disposes of any of the shares acquired pursuant to the Option within one (1)
year after the date the Optionee exercises all or part of the Option or within
two (2) years after the Date of Option Grant and shall provide the Company with
a description of the terms and circumstances of such disposition.  Until such
time as the Optionee disposes of such shares in a manner consistent with the
provisions of this Option Agreement, unless otherwise expressly authorized by
the Company, the Optionee shall hold all shares acquired pursuant to the Option
in 

                                       37
<PAGE>
 
the Optionee's name (and not in the name of any nominee) for the one-year period
immediately after the exercise of the Option and the two-year period immediately
after Date of Option Grant. At any time during the one-year or two-year periods
set forth above, the Company may place a legend on any certificate representing
shares acquired pursuant to the Option requesting the transfer agent for the
Company's stock to notify the Company of any such transfers. The obligation of
the Optionee to notify the Company of any such transfer shall continue
notwithstanding that a legend has been placed on the certificate pursuant to the
preceding sentence.

     12.  LEGENDS.  The Company may at any time place legends referencing any
          -------                                                            
applicable federal, state or foreign securities law restrictions on all
certificates representing shares of stock subject to the provisions of this
Option Agreement.  The Optionee shall, at the request of the Company, promptly
present to the Company any and all certificates representing shares acquired
pursuant to the Option in the possession of the Optionee in order to carry out
the provisions of this Section.

     13.  RESTRICTIONS ON TRANSFER OF SHARES.  No shares acquired upon exercise
          ----------------------------------                                   
of the Option may be sold, exchanged, transferred (including, without
limitation, any transfer to a nominee or agent of the Optionee), assigned,
pledged, hypothecated or otherwise disposed of, including by operation of law,
in any manner which violates any of the provisions of this Option Agreement, and
any such attempted disposition shall be void.  The Company shall not be required
(a) to transfer on its books any shares which will have been transferred in
violation of any of the provisions set forth in this Option Agreement or (b) to
treat as owner of such shares or to accord the right to vote as such owner or to
pay dividends to any transferee to whom such shares will have been so
transferred.

     14.  BINDING EFFECT.  Subject to the restrictions on transfer set forth
          --------------                                                    
herein, this Option Agreement shall inure to the benefit of and be binding upon
the parties hereto and their respective heirs, executors, administrators,
successors and assigns.

     15.  TERMINATION OR AMENDMENT.  The Board may terminate or amend the Plan
          ------------------------                                            
or the Option at any time; provided, however, that except as provided in Section
8.2 in connection with a Transfer of Control, no such termination or amendment
may adversely affect the Option or any unexercised portion hereof without the
consent of the Optionee unless such termination or amendment is necessary to
comply with any applicable law or government regulation or is required to enable
the Option to qualify as an Incentive Stock Option.  No amendment or addition to
this Option Agreement shall be effective unless in writing.

     16.  INTEGRATED AGREEMENT.  This Option Agreement constitutes the entire
          --------------------                                               
understanding and agreement of the Optionee and the Participating Company Group
with respect to the subject matter contained herein, and there are no
agreements, understandings, restrictions, representations, or warranties among
the Optionee and the Participating Company Group with respect to such subject
matter other than those as set forth or provided for herein.  To the extent

                                       38
<PAGE>
 
contemplated herein, the provisions of this Option Agreement shall survive any
exercise of the Option and shall remain in full force and effect.

     17.  APPLICABLE LAW.  This Option Agreement shall be governed by the laws
          --------------                                                      
of the State of California as such laws are applied to agreements between
California residents entered into and to be performed entirely within the State
of California.


                                    CONSILIUM, INC.



                                    By:____________________________________

                                    Title:_________________________________



     The Optionee represents that the Optionee is familiar with the terms and
provisions of this Option Agreement and hereby accepts the Option subject to all
of the terms and provisions thereof.  The Optionee hereby agrees to accept as
binding, conclusive and final all decisions or interpretations of the Board upon
any questions arising under this Option Agreement.


                                    OPTIONEE



Date:___________________________    _______________________________________

                                       39
<PAGE>
 
                                CONSILIUM, INC.

                      NONSTATUTORY STOCK OPTION AGREEMENT

                                   (OFFICER)


     THIS NONSTATUTORY STOCK OPTION AGREEMENT (the "OPTION AGREEMENT") is made
and entered into as of ___________, 199_, by and between Consilium, Inc. and
___________________________ (the "OPTIONEE").

     The Company has granted to the Optionee pursuant to the Consilium, Inc.
1996 Stock Option Plan an option to purchase certain shares of Stock upon the
terms and conditions set forth in this Option Agreement (the "OPTION").

     1.   DEFINITIONS AND CONSTRUCTION.
          ---------------------------- 

          1.1  DEFINITIONS.  Whenever used herein, the following terms shall
have their respective meanings set forth below:

               (a)  "DATE OF OPTION GRANT" means ________________________,
199_.

               (b)  "NUMBER OF OPTION SHARES" means ___________________ shares
of Stock, as adjusted from time to time pursuant to Section 9.

               (c)  "EXERCISE PRICE" means $ ____________ per share of Stock, as
adjusted from time to time pursuant to Section 9.

               (d)  "INITIAL EXERCISE DATE" means the Initial Vesting Date.

               (e)  "INITIAL VESTING DATE" means the date occurring one (1) year
after (check one):

                    __  the Date of Option Grant.
                    
                    __  __________________ , 199_, the date the Optionee's
                        Service commenced.
                        

                                       40
<PAGE>
 
               (f)  "VESTED RATIO" means, on any relevant date, the ratio
determined as follows:

<TABLE>
<CAPTION>
                                                                     
                                                          Vested Ratio
                                                          ------------
               <S>                                        <C>        
               Prior to Initial Vesting Date                         0
                                                                     
               On Initial Vesting Date, provided the               1/4
               Optionee's Service is continuous from                 
               the later of the Date of Option Grant                 
               or the Optionee's Service commencement                
               date until the Initial Vesting Date                   
                                                                     
               Plus                                                  
               ----                                                  
                                                                     
               For each full month of the Optionee's              1/48
               continuous Service from the Initial                   
               Vesting Date until the Vested Ratio                   
               equals 1/1, an additional                              
</TABLE>

               (g)  "OPTION EXPIRATION DATE" means the date ten (10) years after
the Date of Option Grant.

               (h)  "BOARD" means the Board of Directors of the Company. If one
or more Committees have been appointed by the Board to administer the Plan,
"Board" shall also mean such Committee(s).

               (i)  "CODE" means the Internal Revenue Code of 1986, as amended,
and any applicable regulations promulgated thereunder.

               (j)  "COMMITTEE" means the Compensation Committee or other
committee of the Board duly appointed to administer the Plan and having such
powers as shall be specified by the Board. Unless the powers of the Committee
have been specifically limited, the Committee shall have all of the powers of
the Board granted in the Plan, including, without limitation, the power to amend
or terminate the Plan at any time, subject to the terms of the Plan and any
applicable limitations imposed by law.

               (k)  "COMPANY" means Consilium, Inc., a Delaware corporation, or
any successor corporation thereto.

               (l)  "CONSULTANT" means any person, including an advisor, engaged
by a Participating Company to render services other than as an Employee or a
Director.

                                       41
<PAGE>
 
               (m)  "DIRECTOR" means a member of the Board or of the board of
directors of any other Participating Company.

               (n)  "DISABILITY" means the permanent and total disability of the
Optionee within the meaning of Section 22(e)(3) of the Code.

               (o)  "EMPLOYEE" means any person treated as an employee
(including an officer or a Director who is also treated as an employee) in the
records of a Participating Company; provided, however, that neither service as a
Director nor payment of a director's fee shall be sufficient to constitute
employment for this purpose.

               (p)  "EXCHANGE ACT" means the Securities Exchange Act of 1934, as
amended.

               (q)  "FAIR MARKET VALUE" means, as of any date, the value of a
share of Stock or other property as determined by the Board, in its sole
discretion, or by the Company, in its sole discretion, if such determination is
expressly allocated to the Company herein, subject to the following:

                    (i)  If, on such date, there is a public market for the
Stock, the Fair Market Value of a share of Stock shall be the closing sale price
of a share of Stock (or the mean of the closing bid and asked prices of a share
of Stock if the Stock is so quoted instead) as quoted on the Nasdaq National
Market, the Nasdaq Small-Cap Market or such other national or regional
securities exchange or market system constituting the primary market for the
Stock, as reported in the Wall Street Journal or such other source as the
                          -------------------    
Company deems reliable. If the relevant date does not fall on a day on which the
Stock has traded on such securities exchange or market system, the date on which
the Fair Market Value shall be established shall be the last day on which the
Stock was so traded prior to the relevant date, or such other appropriate day as
shall be determined by the Board, in its sole discretion.

                    (ii) If, on such date, there is no public market for the
Stock, the Fair Market Value of a share of Stock shall be as determined by the
Board without regard to any restriction other than a restriction which, by its
terms, will never lapse.

               (r)  "PARENT CORPORATION" means any present or future "parent
corporation" of the Company, as defined in Section 424(e) of the Code.

               (s)  "PARTICIPATING COMPANY" means the Company or any Parent
Corporation or Subsidiary Corporation.

               (t)  "PARTICIPATING COMPANY GROUP" means, at any point in time,
all corporations collectively which are then Participating Companies.

               (u)  "PLAN" means the Consilium, Inc. 1996 Stock Option Plan.

                                       42
<PAGE>
 
               (v)  "RULE 16B-3" means Rule 16b-3 under the Exchange Act, as
amended from time to time, or any successor rule or regulation.

               (w)  "SECURITIES ACT" means the Securities Act of 1933, as
amended.

               (x)  "SERVICE" means the Optionee's employment or service with
the Participating Company Group, whether in the capacity of an Employee, a
Director or a Consultant. The Optionee's Service shall not be deemed to have
terminated merely because of a change in the capacity in which the Optionee
renders Service to the Participating Company Group or a change in the
Participating Company for which the Optionee renders such Service, provided that
there is no interruption or termination of the Optionee's Service. The
Optionee's Service shall be deemed to have terminated either upon an actual
termination of Service or upon the corporation for which the Optionee performs
Service ceasing to be a Participating Company. Subject to the foregoing, the
Company, in its sole discretion, shall determine whether the Optionee's Service
has terminated and the effective date of such termination.

               (y)  "STOCK" means the common stock, par value $0.01, of the
Company, as adjusted from time to time in accordance with Section 9.

               (z)  "SUBSIDIARY CORPORATION" means any present or future
"subsidiary corporation" of the Company, as defined in Section 424(f) of the
Code.

          1.2  CONSTRUCTION.  Captions and titles contained herein are for
convenience only and shall not affect the meaning or interpretation of any
provision of this Option Agreement.  Except when otherwise indicated by the
context, the singular shall include the plural and the plural shall include the
singular.  Use of the term "or" is not intended to be exclusive, unless the
context clearly requires otherwise.

     2.   TAX CONSEQUENCES.
          ---------------- 

          2.1  TAX STATUS OF OPTION.  This Option is intended to be a
nonstatutory stock option and shall not be treated as an incentive stock option
within the meaning of Section 422(b) of the Code.

          2.2  ELECTION UNDER SECTION 83(b) OF THE CODE. If the Optionee
exercises this Option to purchase shares of Stock that are both nontransferable
and subject to a substantial risk of forfeiture, the Optionee understands that
the Optionee should consult with the Optionee's tax advisor regarding the
advisability of filing with the Internal Revenue Service an election under
Section 83(b) of the Code, which must be filed no later than thirty (30) days
after the date on which the Optionee exercises the Option. Shares acquired upon
exercise of the Option are nontransferable and subject to a substantial risk of
forfeiture if, for example, (a) they are unvested and are subject to a right of
the Company to repurchase such shares at the Optionee's original purchase price
if the Optionee's Service terminates, or (b) the Optionee is subject to a
restriction on transfer to comply with "Pooling-of-Interests Accounting" rules.
Failure to file an election under Section 83(b), if appropriate, may result in
adverse tax consequences to the

                                       43
<PAGE>
 
Optionee. The Optionee acknowledges that the Optionee has been advised to
consult with a tax advisor prior to the exercise of the Option regarding the tax
consequences to the Optionee of the exercise of the Option. AN ELECTION UNDER
SECTION 83(b) MUST BE FILED WITHIN 30 DAYS AFTER THE DATE ON WHICH THE OPTIONEE
PURCHASES SHARES. THIS TIME PERIOD CANNOT BE EXTENDED. THE OPTIONEE ACKNOWLEDGES
THAT TIMELY FILING OF A SECTION 83(b) ELECTION IS THE OPTIONEE'S SOLE
RESPONSIBILITY, EVEN IF THE OPTIONEE REQUESTS THE COMPANY OR ITS REPRESENTATIVE
TO FILE SUCH ELECTION ON HIS OR HER BEHALF.

     3.   ADMINISTRATION.  All questions of interpretation concerning this
          --------------                                                  
Option Agreement shall be determined by the Board, including any duly appointed
Committee of the Board.  All determinations by the Board shall be final and
binding upon all persons having an interest in the Option.  Any officer of a
Participating Company shall have the authority to act on behalf of the Company
with respect to any matter, right, obligation, or election which is the
responsibility of or which is allocated to the Company herein, provided the
officer has apparent authority with respect to such matter, right, obligation,
or election.

     4.   EXERCISE OF THE OPTION.
          ---------------------- 

          4.1  RIGHT TO EXERCISE.  Except as otherwise provided herein, the
Option shall be exercisable on and after the Initial Exercise Date and prior to
the termination of the Option (as provided in Section 6) in an amount not to
exceed the Number of Option Shares multiplied by the Vested Ratio less the
number of shares previously acquired upon exercise of the Option. In no event
shall the Option be exercisable for more shares than the Number of Option
Shares.

          4.2  METHOD OF EXERCISE.  Exercise of the Option shall be by written
notice to the Company which must state the election to exercise the Option, the
number of whole shares of Stock for which the Option is being exercised and such
other representations and agreements as to the Optionee's investment intent with
respect to such shares as may be required pursuant to the provisions of this
Option Agreement. The written notice must be signed by the Optionee and must be
delivered in person, by certified or registered mail, return receipt requested,
by confirmed facsimile transmission, or by such other means as the Company may
permit, to the Chief Financial Officer of the Company, or other authorized
representative of the Participating Company Group, prior to the termination of
the Option as set forth in Section 6, accompanied by full payment of the
aggregate Exercise Price for the number of shares of Stock being purchased. The
Option shall be deemed to be exercised upon receipt by the Company of such
written notice and the aggregate Exercise Price.

                                       44
<PAGE>
 
          4.3  PAYMENT OF EXERCISE PRICE.

               (a)  FORMS OF CONSIDERATION AUTHORIZED. Except as otherwise
provided below, payment of the aggregate Exercise Price for the number of shares
of Stock for which the Option is being exercised shall be made (i) in cash, by
check, or cash equivalent, (ii) by tender to the Company of whole shares of
Stock owned by the Optionee having a Fair Market Value (as determined by the
Company without regard to any restrictions on transferability applicable to such
stock by reason of federal or state securities laws or agreements with an
underwriter for the Company) not less than the aggregate Exercise Price, (iii)
by means of a Cashless Exercise, as defined in Section 4.3(c), or (iv) by any
combination of the foregoing.

               (b)  TENDER OF STOCK.  Notwithstanding the foregoing, the Option
may not be exercised by tender to the Company of shares of Stock to the extent
such tender of Stock would constitute a violation of the provisions of any law,
regulation or agreement restricting the redemption of the Company's stock. The
Option may not be exercised by tender to the Company of shares of Stock unless
such shares either have been owned by the Optionee for more than six (6) months
or were not acquired, directly or indirectly, from the Company.

               (c)  CASHLESS EXERCISE.  A "CASHLESS EXERCISE" means the
assignment in a form acceptable to the Company of the proceeds of a sale or loan
with respect to some or all of the shares of Stock acquired upon the exercise of
the Option pursuant to a program or procedure approved by the Company
(including, without limitation, through an exercise complying with the
provisions of Regulation T as promulgated from time to time by the Board of
Governors of the Federal Reserve System). The Company reserves, at any and all
times, the right, in the Company's sole and absolute discretion, to decline to
approve or terminate any such program or procedure.

          4.4  TAX WITHHOLDING.  At the time the Option is exercised, in whole
or in part, or at any time thereafter as requested by the Company, the Optionee
hereby authorizes withholding from payroll and any other amounts payable to the
Optionee, and otherwise agrees to make adequate provision for (including by
means of a Cashless Exercise to the extent permitted by the Company), any sums
required to satisfy the federal, state, local and foreign tax withholding
obligations of the Participating Company Group, if any, which arise in
connection with the Option, including, without limitation, obligations arising
upon (i) the exercise, in whole or in part, of the Option, (ii) the transfer, in
whole or in part, of any shares acquired upon exercise of the Option, (iii) the
operation of any law or regulation providing for the imputation of interest, or
(iv) the lapsing of any restriction with respect to any shares acquired upon
exercise of the Option. The Optionee is cautioned that the Option is not
exercisable unless the tax withholding obligations of the Participating Company
Group are satisfied. Accordingly, the Optionee may not be able to exercise the
Option when desired even though the Option is vested, and the Company shall have
no obligation to issue a certificate for such shares or release such shares from
any escrow provided for herein.

          4.5  CERTIFICATE REGISTRATION.  Except in the event the Exercise Price
is paid by means of a Cashless Exercise, the certificate for the shares as to
which the Option is exercised

                                       45
<PAGE>
 
shall be registered in the name of the Optionee, or, if applicable, in the names
of the heirs of the Optionee.

          4.6  RESTRICTIONS ON GRANT OF THE OPTION AND ISSUANCE OF SHARES. The
grant of the Option and the issuance of shares of Stock upon exercise of the
Option shall be subject to compliance with all applicable requirements of
federal, state or foreign law with respect to such securities. The Option may
not be exercised if the issuance of shares of Stock upon exercise would
constitute a violation of any applicable federal, state or foreign securities
laws or other law or regulations or the requirements of any stock exchange or
market system upon which the Stock may then be listed. In addition, the Option
may not be exercised unless (i) a registration statement under the Securities
Act shall at the time of exercise of the Option be in effect with respect to the
shares issuable upon exercise of the Option or (ii) in the opinion of legal
counsel to the Company, the shares issuable upon exercise of the Option may be
issued in accordance with the terms of an applicable exemption from the
registration requirements of the Securities Act. THE OPTIONEE IS CAUTIONED THAT
THE OPTION MAY NOT BE EXERCISED UNLESS THE FOREGOING CONDITIONS ARE SATISFIED.
ACCORDINGLY, THE OPTIONEE MAY NOT BE ABLE TO EXERCISE THE OPTION WHEN DESIRED
EVEN THOUGH THE OPTION IS VESTED. Questions concerning this restriction should
be directed to the Chief Financial Officer of the Company. The inability of the
Company to obtain from any regulatory body having jurisdiction the authority, if
any, deemed by the Company's legal counsel to be necessary to the lawful
issuance and sale of any shares subject to the Option shall relieve the Company
of any liability in respect of the failure to issue or sell such shares as to
which such requisite authority shall not have been obtained. As a condition to
the exercise of the Option, the Company may require the Optionee to satisfy any
qualifications that may be necessary or appropriate, to evidence compliance with
any applicable law or regulation and to make any representation or warranty with
respect thereto as may be requested by the Company.

          4.7  FRACTIONAL SHARES.  The Company shall not be required to issue
fractional shares upon the exercise of the Option.

     5.   NONTRANSFERABILITY OF THE OPTION.  The Option may be exercised during
          --------------------------------                                     
the lifetime of the Optionee only by the Optionee or the Optionee's guardian or
legal representative and may not be assigned or transferred in any manner except
by will or by the laws of descent and distribution.  Following the death of the
Optionee, the Option, to the extent provided in Section 7, may be exercised by
the Optionee's legal representative or by any person empowered to do so under
the deceased Optionee's will or under the then applicable laws of descent and
distribution.

     6.   TERMINATION OF THE OPTION.  The Option shall terminate and may no
          -------------------------                                        
longer be exercised on the first to occur of (a) the Option Expiration Date, (b)
the last date for exercising the Option following termination of the Optionee's
Service as described in Section 7, or (c) a Transfer of Control to the extent
provided in Section 8.

                                       46
<PAGE>
 
     7.   EFFECT OF TERMINATION OF SERVICE.
          -------------------------------- 

          7.1  OPTION EXERCISABILITY.

               (a)  DISABILITY.  If the Optionee's Service with the
Participating Company Group is terminated because of the Disability of the
Optionee, the Option, to the extent unexercised and exercisable on the date on
which the Optionee's Service terminated, may be exercised by the Optionee (or
the Optionee's guardian or legal representative) at any time prior to the
expiration of twelve (12) months after the date on which the Optionee's Service
terminated, but in any event no later than the Option Expiration Date.

               (b)  DEATH.  If the Optionee's Service with the Participating
Company Group is terminated because of the death of the Optionee, the Option, to
the extent unexercised and exercisable on the date on which the Optionee's
Service terminated, may be exercised by the Optionee's legal representative or
other person who acquired the right to exercise the Option by reason of the
Optionee's death at any time prior to the expiration of twelve (12) months after
the date on which the Optionee's Service terminated, but in any event no later
than the Option Expiration Date. The Optionee's Service shall be deemed to have
terminated on account of death if the Optionee dies within three (3) months
after the Optionee's termination of Service.

               (c)  OTHER TERMINATION OF SERVICE. If the Optionee's Service with
the Participating Company Group terminates for any reason, except Disability or
death, the Option, to the extent unexercised and exercisable by the Optionee on
the date on which the Optionee's Service terminated, may be exercised by the
Optionee within three (3) months (or such other longer period of time as
determined by the Board, in its sole discretion) after the date on which the
Optionee's Service terminated, but in any event no later than the Option
Expiration Date.

          7.2  EXTENSION IF EXERCISE PREVENTED BY LAW.  Notwithstanding the
foregoing, if the exercise of the Option within the applicable time periods set
forth in Section 7.1 is prevented by the provisions of Section 4.6, the Option
shall remain exercisable until three (3) months after the date the Optionee is
notified by the Company that the Option is exercisable, but in any event no
later than the Option Expiration Date.

          7.3  EXTENSION IF OPTIONEE SUBJECT TO SECTION 16(b). Notwithstanding
the foregoing, if a sale within the applicable time periods set forth in Section
7.1 of shares acquired upon the exercise of the Option would subject the
Optionee to suit under Section 16(b) of the Exchange Act, the Option shall
remain exercisable until the earliest to occur of (i) the tenth (10th) day
following the date on which a sale of such shares by the Optionee would no
longer be subject to such suit, (ii) the one hundred and ninetieth (190th) day
after the Optionee's termination of Service, or (iii) the Option Expiration
Date.

          7.4  LEAVE OF ABSENCE. For purposes of Section 7.1, the Optionee's
Service with the Participating Company Group shall not be deemed to terminate if
the Optionee takes any military leave, sick leave, or other bona fide leave of
absence approved by the Company of

                                       47
<PAGE>
 
ninety (90) days or less. In the event of a leave of absence in excess of ninety
(90) days, the Optionee's Service shall be deemed to terminate on the ninety-
first (91st) day of such leave unless the Optionee's right to return to Service
with the Participating Company Group remains guaranteed by statute or contract.
Notwithstanding the foregoing, unless otherwise designated by the Company (or
required by law), a leave of absence shall not be treated as Service for
purposes of determining the Optionee's Vested Ratio.

     8.   TRANSFER OF CONTROL.
          ------------------- 

          8.1  DEFINITIONS.

               (a)  An "OWNERSHIP CHANGE EVENT" shall be deemed to have occurred
if any of the following occurs with respect to the Company:

                    (i)   the direct or indirect sale or exchange in a single or
series of related transactions by the stockholders of the Company of more than
fifty percent (50%) of the voting stock of the Company;

                    (ii)  a merger or consolidation in which the Company is a
party;

                    (iii) the sale, exchange, or transfer of all or
substantially all of the assets of the Company; or

                    (iv)  a liquidation or dissolution of the Company.

               (b)  A "TRANSFER OF CONTROL" shall mean an Ownership Change Event
or a series of related Ownership Change Events (collectively, the "TRANSACTION")
wherein the stockholders of the Company immediately before the Transaction do
not retain immediately after the Transaction, in substantially the same
proportions as their ownership of shares of the Company's voting stock
immediately before the Transaction, direct or indirect beneficial ownership of
more than fifty percent (50%) of the total combined voting power of the
outstanding voting stock of the Company or the corporation or corporations to
which the assets of the Company were transferred (the "TRANSFEREE
CORPORATION(S)"), as the case may be. For purposes of the preceding sentence,
indirect beneficial ownership shall include, without limitation, an interest
resulting from ownership of the voting stock of one or more corporations which,
as a result of the Transaction, own the Company or the Transferee
Corporation(s), as the case may be, either directly or through one or more
subsidiary corporations. The Board shall have the right to determine whether
multiple sales or exchanges of the voting stock of the Company or multiple
Ownership Change Events are related, and its determination shall be final,
binding and conclusive.

          8.2  EFFECT OF TRANSFER OF CONTROL ON OPTION. In the event of a
Transfer of Control, the surviving, continuing, successor, or purchasing
corporation or parent corporation thereof, as the case may be (the "ACQUIRING
CORPORATION"), may either assume the Company's rights and obligations under the
Option or substitute for the Option a substantially equivalent

                                       48
<PAGE>
 
option for the Acquiring Corporation's stock. For purposes of this Section 8.2,
an Option shall be deemed assumed if, following the Transfer of Control, the
Option confers the right to purchase, for each share of Stock subject to the
Option immediately prior to the Transfer of Control, the consideration (whether
stock, cash or other securities or property) to which a holder of a share of
Stock on the effective date of the Transfer of Control was entitled. In the
event the Acquiring Corporation elects not to assume the Company's rights and
obligations under the Option or substitute for the Option in connection with the
Transfer of Control, any unexercised portion of the Option shall be immediately
exercisable and vested in full as of the date ten (10) days prior to the date of
the Transfer of Control. Any exercise of the Option that was permissible solely
by reason of this Section 8.2 shall be conditioned upon the consummation of the
Transfer of Control. The Option shall terminate and cease to be outstanding
effective as of the date of the Transfer of Control to the extent that the
Option is neither assumed or substituted for by the Acquiring Corporation in
connection with the Transfer of Control nor exercised as of the date of the
Transfer of Control. Notwithstanding the foregoing, shares acquired upon
exercise of the Option prior to the Transfer of Control and any consideration
received pursuant to the Transfer of Control with respect to such shares shall
continue to be subject to all applicable provisions of this Option Agreement
except as otherwise provided herein. Furthermore, notwithstanding the foregoing,
if the corporation the stock of which is subject to the Option immediately prior
to an Ownership Change Event described in Section 8.1(a)(i) constituting a
Transfer of Control is the surviving or continuing corporation and immediately
after such Ownership Change Event less than fifty percent (50%) of the total
combined voting power of its voting stock is held by another corporation or by
other corporations that are members of an affiliated group within the meaning of
Section 1504(a) of the Code without regard to the provisions of Section 1504(b)
of the Code, the Option shall not terminate unless the Board otherwise provides
in its sole discretion.

     9.   ADJUSTMENTS FOR CHANGES IN CAPITAL STRUCTURE.  In the event of any
          --------------------------------------------                      
stock dividend, stock split, reverse stock split, recapitalization, combination,
reclassification, or similar change in the capital structure of the Company,
appropriate adjustments shall be made in the number, Exercise Price and class of
shares of stock subject to the Option.  If a majority of the shares which are of
the same class as the shares that are subject to the Option are exchanged for,
converted into, or otherwise become (whether or not pursuant to an Ownership
Change Event) shares of another corporation (the "NEW SHARES"), the Board may
unilaterally amend the Option to provide that the Option is exercisable for New
Shares.  In the event of any such amendment, the Number of Option Shares and the
Exercise Price shall be adjusted in a fair and equitable manner, as determined
by the Board, in its sole discretion.  Notwithstanding the foregoing, any
fractional share resulting from an adjustment pursuant to this Section 9 shall
be rounded up or down to the nearest whole number, as determined by the Board,
and in no event may the Exercise Price be decreased to an amount less than the
par value, if any, of the stock subject to the Option.  The adjustments
determined by the Board pursuant to this Section 9 shall be final, binding and
conclusive.

     10.  RIGHTS AS A STOCKHOLDER, EMPLOYEE OR CONSULTANT.  The Optionee shall
          -----------------------------------------------                     
have no rights as a stockholder with respect to any shares covered by the Option
until the date of the issuance of a certificate for the shares for which the
Option has been exercised (as evidenced by the appropriate entry on the books of
the Company or of a duly authorized transfer agent of the 

                                       49
<PAGE>
 
Company). No adjustment shall be made for dividends, distributions or other
rights for which the record date is prior to the date such certificate is
issued, except as provided in Section 9. Nothing in this Option Agreement shall
confer upon the Optionee any right to continue in the Service of a Participating
Company or interfere in any way with any right of the Participating Company
Group to terminate the Optionee's Service as an Employee or Consultant, as the
case may be, at any time.

     11.  LEGENDS.  The Company may at any time place legends referencing any
          -------                                                            
applicable federal, state or foreign securities law restrictions on all
certificates representing shares of stock subject to the provisions of this
Option Agreement.  The Optionee shall, at the request of the Company, promptly
present to the Company any and all certificates representing shares acquired
pursuant to the Option in the possession of the Optionee in order to carry out
the provisions of this Section.

     12.  RESTRICTIONS ON TRANSFER OF SHARES.  No shares acquired upon exercise
          ----------------------------------                                   
of the Option may be sold, exchanged, transferred (including, without
limitation, any transfer to a nominee or agent of the Optionee), assigned,
pledged, hypothecated or otherwise disposed of, including by operation of law,
in any manner which violates any of the provisions of this Option Agreement, and
any such attempted disposition shall be void.  The Company shall not be required
(a) to transfer on its books any shares which will have been transferred in
violation of any of the provisions set forth in this Option Agreement or (b) to
treat as owner of such shares or to accord the right to vote as such owner or to
pay dividends to any transferee to whom such shares will have been so
transferred.

     13.  BINDING EFFECT.  Subject to the restrictions on transfer set forth
          --------------                                                    
herein, this Option Agreement shall inure to the benefit of and be binding upon
the parties hereto and their respective heirs, executors, administrators,
successors and assigns.

     14.  TERMINATION OR AMENDMENT.  The Board may terminate or amend the Plan
          ------------------------                                            
or the Option at any time; provided, however, that except as provided in Section
8.2 in connection with a Transfer of Control, no such termination or amendment
may adversely affect the Option or any unexercised portion hereof without the
consent of the Optionee unless such termination or amendment is necessary to
comply with any applicable law or government regulation.  No amendment or
addition to this Option Agreement shall be effective unless in writing.

     15.  INTEGRATED AGREEMENT.  This Option Agreement constitutes the entire
          --------------------                                               
understanding and agreement of the Optionee and the Participating Company Group
with respect to the subject matter contained herein, and there are no
agreements, understandings, restrictions, representations, or warranties among
the Optionee and the Participating Company Group with respect to such subject
matter other than those as set forth or provided for herein, except for the
provisions set forth in a change of control agreement between the Company and
the Optionee, if any.  To the extent contemplated herein, the provisions of this
Option Agreement shall survive any exercise of the Option and shall remain in
full force and effect.

                                       50
<PAGE>
 
     16.  APPLICABLE LAW.  This Option Agreement shall be governed by the laws
          --------------                                                      
of the State of California as such laws are applied to agreements between
California residents entered into and to be performed entirely within the State
of California.


                                    CONSILIUM, INC.



                                    By:_________________________________

                                    Title:______________________________



     The Optionee represents that the Optionee is familiar with the terms and
provisions of this Option Agreement and hereby accepts the Option subject to all
of the terms and provisions thereof.  The Optionee hereby agrees to accept as
binding, conclusive and final all decisions or interpretations of the Board upon
any questions arising under this Option Agreement.


                                    OPTIONEE



Date:____________________________   ____________________________________

                                       51
<PAGE>
 
                                                                   EXHIBIT 10.22

                                CONSILIUM, INC.

                      NONSTATUTORY STOCK OPTION AGREEMENT

                                 (NON-OFFICER)


     THIS NONSTATUTORY STOCK OPTION AGREEMENT (the "OPTION AGREEMENT") is made
and entered into as of ___________, 199_, by and between Consilium, Inc. and
___________________________ (the "OPTIONEE").

     The Company has granted to the Optionee pursuant to the Consilium, Inc.
1996 Stock Option Plan an option to purchase certain shares of Stock upon the
terms and conditions set forth in this Option Agreement (the "OPTION").

     1.   DEFINITIONS AND CONSTRUCTION.
          ---------------------------- 

          1.1  DEFINITIONS.  Whenever used herein, the following terms shall
have their respective meanings set forth below:

               (a)  "DATE OF OPTION GRANT" means ________________________ ,
199_.

               (b)  "NUMBER OF OPTION SHARES" means ___________________ shares
of Stock, as adjusted from time to time pursuant to Section 9.

               (c)  "EXERCISE PRICE" means $ ____________ per share of Stock, as
adjusted from time to time pursuant to Section 9.

               (d)  "INITIAL EXERCISE DATE" means the Initial Vesting Date.

               (e)  "INITIAL VESTING DATE" means the date occurring one (1) year
after (check one):

                    __   the Date of Option Grant.

                    __   __________________ , 199_, the date the Optionee's
                         Service commenced.

                                       52
<PAGE>
 
               (f)  "VESTED RATIO" means, on any relevant date, the ratio
determined as follows:

<TABLE>
<CAPTION>
                                                          Vested Ratio
                                                          ------------
               <S>                                        <C>        
               Prior to Initial Vesting Date                         0
                                                                     
               On Initial Vesting Date, provided the               1/4
               Optionee's Service is continuous from                
               the later of the Date of Option Grant                
               or the Optionee's Service commencement               
               date until the Initial Vesting Date                  
                                                                     
               Plus                                                  
               ----
                                                                     
               For each full month of the Optionee's              1/48
               continuous Service from the Initial                  
               Vesting Date until the Vested Ratio                  
               equals 1/1, an additional                             
</TABLE>

               (g)  "OPTION EXPIRATION DATE" means the date ten (10) years after
the Date of Option Grant.

               (h)  "BOARD" means the Board of Directors of the Company. If one
or more Committees have been appointed by the Board to administer the Plan,
"Board" shall also mean such Committee(s).

               (i)  "CODE" means the Internal Revenue Code of 1986, as amended,
and any applicable regulations promulgated thereunder.

               (j)  "COMMITTEE" means the Compensation Committee or other
committee of the Board duly appointed to administer the Plan and having such
powers as shall be specified by the Board. Unless the powers of the Committee
have been specifically limited, the Committee shall have all of the powers of
the Board granted in the Plan, including, without limitation, the power to amend
or terminate the Plan at any time, subject to the terms of the Plan and any
applicable limitations imposed by law.

               (k)  "COMPANY" means Consilium, Inc., a Delaware corporation, or
any successor corporation thereto.

               (l)  "CONSULTANT" means any person, including an advisor, engaged
by a Participating Company to render services other than as an Employee or a
Director.

                                       53
<PAGE>
 
               (m)  "DIRECTOR" means a member of the Board or of the board of
directors of any other Participating Company.

               (n)  "DISABILITY" means the permanent and total disability of the
Optionee within the meaning of Section 22(e)(3) of the Code.

               (o)  "EMPLOYEE" means any person treated as an employee
(including an officer or a Director who is also treated as an employee) in the
records of a Participating Company; provided, however, that neither service as a
Director nor payment of a director's fee shall be sufficient to constitute
employment for this purpose.

               (p)  "EXCHANGE ACT" means the Securities Exchange Act of 1934, as
amended.

               (q)  "FAIR MARKET VALUE" means, as of any date, the value of a
share of Stock or other property as determined by the Board, in its sole
discretion, or by the Company, in its sole discretion, if such determination is
expressly allocated to the Company herein, subject to the following:

                    (i)  If, on such date, there is a public market for the
Stock, the Fair Market Value of a share of Stock shall be the closing sale price
of a share of Stock (or the mean of the closing bid and asked prices of a share
of Stock if the Stock is so quoted instead) as quoted on the Nasdaq National
Market, the Nasdaq Small-Cap Market or such other national or regional
securities exchange or market system constituting the primary market for the
Stock, as reported in the Wall Street Journal or such other source as the
                          ------------------- 
Company deems reliable. If the relevant date does not fall on a day on which the
Stock has traded on such securities exchange or market system, the date on which
the Fair Market Value shall be established shall be the last day on which the
Stock was so traded prior to the relevant date, or such other appropriate day as
shall be determined by the Board, in its sole discretion.

                    (ii) If, on such date, there is no public market for the
Stock, the Fair Market Value of a share of Stock shall be as determined by the
Board without regard to any restriction other than a restriction which, by its
terms, will never lapse.

               (r)  "PARENT CORPORATION" means any present or future "parent
corporation" of the Company, as defined in Section 424(e) of the Code.

               (s)  "PARTICIPATING COMPANY" means the Company or any Parent
Corporation or Subsidiary Corporation.

               (t)  "PARTICIPATING COMPANY GROUP" means, at any point in time,
all corporations collectively which are then Participating Companies.

               (u)  "PLAN" means the Consilium, Inc. 1996 Stock Option Plan.

                                       54
<PAGE>
 
               (v)  "RULE 16B-3" means Rule 16b-3 under the Exchange Act, as
amended from time to time, or any successor rule or regulation.

               (w)  "SECURITIES ACT" means the Securities Act of 1933, as
amended.

               (x)  "SERVICE" means the Optionee's employment or service with
the Participating Company Group, whether in the capacity of an Employee, a
Director or a Consultant. The Optionee's Service shall not be deemed to have
terminated merely because of a change in the capacity in which the Optionee
renders Service to the Participating Company Group or a change in the
Participating Company for which the Optionee renders such Service, provided that
there is no interruption or termination of the Optionee's Service. The
Optionee's Service shall be deemed to have terminated either upon an actual
termination of Service or upon the corporation for which the Optionee performs
Service ceasing to be a Participating Company. Subject to the foregoing, the
Company, in its sole discretion, shall determine whether the Optionee's Service
has terminated and the effective date of such termination.

               (y)  "STOCK" means the common stock, par value $0.01, of the
Company, as adjusted from time to time in accordance with Section 9.

               (z)  "SUBSIDIARY CORPORATION" means any present or future
"subsidiary corporation" of the Company, as defined in Section 424(f) of the
Code.

          1.2  CONSTRUCTION.  Captions and titles contained herein are for
convenience only and shall not affect the meaning or interpretation of any
provision of this Option Agreement.  Except when otherwise indicated by the
context, the singular shall include the plural and the plural shall include the
singular.  Use of the term "or" is not intended to be exclusive, unless the
context clearly requires otherwise.

     2.   TAX CONSEQUENCES.
          ---------------- 

          2.1  TAX STATUS OF OPTION. This Option is intended to be a
nonstatutory stock option and shall not be treated as an incentive stock option
within the meaning of Section 422(b) of the Code.

          2.2  ELECTION UNDER SECTION 83(B) OF THE CODE. If the Optionee
exercises this Option to purchase shares of Stock that are both nontransferable
and subject to a substantial risk of forfeiture, the Optionee understands that
the Optionee should consult with the Optionee's tax advisor regarding the
advisability of filing with the Internal Revenue Service an election under
Section 83(b) of the Code, which must be filed no later than thirty (30) days
after the date on which the Optionee exercises the Option. Shares acquired upon
exercise of the Option are nontransferable and subject to a substantial risk of
forfeiture if, for example, (a) they are unvested and are subject to a right of
the Company to repurchase such shares at the Optionee's original purchase price
if the Optionee's Service terminates, or (b) the Optionee is subject to a
restriction on transfer to comply with "Pooling-of-Interests Accounting" rules.
Failure to file an election under Section 83(b), if appropriate, may result in
adverse tax consequences to the 

                                       55
<PAGE>
 
Optionee. The Optionee acknowledges that the Optionee has been advised to
consult with a tax advisor prior to the exercise of the Option regarding the tax
consequences to the Optionee of the exercise of the Option. AN ELECTION UNDER
SECTION 83(b) MUST BE FILED WITHIN 30 DAYS AFTER THE DATE ON WHICH THE OPTIONEE
PURCHASES SHARES. THIS TIME PERIOD CANNOT BE EXTENDED. THE OPTIONEE ACKNOWLEDGES
THAT TIMELY FILING OF A SECTION 83(b) ELECTION IS THE OPTIONEE'S SOLE
RESPONSIBILITY, EVEN IF THE OPTIONEE REQUESTS THE COMPANY OR ITS REPRESENTATIVE
TO FILE SUCH ELECTION ON HIS OR HER BEHALF.

     3.   ADMINISTRATION.  All questions of interpretation concerning this
          --------------                                                  
Option Agreement shall be determined by the Board, including any duly appointed
Committee of the Board.  All determinations by the Board shall be final and
binding upon all persons having an interest in the Option.  Any officer of a
Participating Company shall have the authority to act on behalf of the Company
with respect to any matter, right, obligation, or election which is the
responsibility of or which is allocated to the Company herein, provided the
officer has apparent authority with respect to such matter, right, obligation,
or election.

     4.   EXERCISE OF THE OPTION.
          ---------------------- 

          4.1  RIGHT TO EXERCISE. Except as otherwise provided herein, the
Option shall be exercisable on and after the Initial Exercise Date and prior to
the termination of the Option (as provided in Section 6) in an amount not to
exceed the Number of Option Shares multiplied by the Vested Ratio less the
number of shares previously acquired upon exercise of the Option. In no event
shall the Option be exercisable for more shares than the Number of Option
Shares.

          4.2  METHOD OF EXERCISE. Exercise of the Option shall be by written
notice to the Company which must state the election to exercise the Option, the
number of whole shares of Stock for which the Option is being exercised and such
other representations and agreements as to the Optionee's investment intent with
respect to such shares as may be required pursuant to the provisions of this
Option Agreement. The written notice must be signed by the Optionee and must be
delivered in person, by certified or registered mail, return receipt requested,
by confirmed facsimile transmission, or by such other means as the Company may
permit, to the Chief Financial Officer of the Company, or other authorized
representative of the Participating Company Group, prior to the termination of
the Option as set forth in Section 6, accompanied by full payment of the
aggregate Exercise Price for the number of shares of Stock being purchased. The
Option shall be deemed to be exercised upon receipt by the Company of such
written notice and the aggregate Exercise Price.

                                       56
<PAGE>
 
          4.3  PAYMENT OF EXERCISE PRICE.

               (a)  FORMS OF CONSIDERATION AUTHORIZED. Except as otherwise
provided below, payment of the aggregate Exercise Price for the number of shares
of Stock for which the Option is being exercised shall be made (i) in cash, by
check, or cash equivalent, (ii) by tender to the Company of whole shares of
Stock owned by the Optionee having a Fair Market Value (as determined by the
Company without regard to any restrictions on transferability applicable to such
stock by reason of federal or state securities laws or agreements with an
underwriter for the Company) not less than the aggregate Exercise Price, (iii)
by means of a Cashless Exercise, as defined in Section 4.3(c), or (iv) by any
combination of the foregoing.

               (b)  TENDER OF STOCK. Notwithstanding the foregoing, the Option
may not be exercised by tender to the Company of shares of Stock to the extent
such tender of Stock would constitute a violation of the provisions of any law,
regulation or agreement restricting the redemption of the Company's stock. The
Option may not be exercised by tender to the Company of shares of Stock unless
such shares either have been owned by the Optionee for more than six (6) months
or were not acquired, directly or indirectly, from the Company.

               (c)  CASHLESS EXERCISE.  A "CASHLESS EXERCISE" means the
assignment in a form acceptable to the Company of the proceeds of a sale or loan
with respect to some or all of the shares of Stock acquired upon the exercise of
the Option pursuant to a program or procedure approved by the Company
(including, without limitation, through an exercise complying with the
provisions of Regulation T as promulgated from time to time by the Board of
Governors of the Federal Reserve System). The Company reserves, at any and all
times, the right, in the Company's sole and absolute discretion, to decline to
approve or terminate any such program or procedure.

          4.4  TAX WITHHOLDING. At the time the Option is exercised, in whole or
in part, or at any time thereafter as requested by the Company, the Optionee
hereby authorizes withholding from payroll and any other amounts payable to the
Optionee, and otherwise agrees to make adequate provision for (including by
means of a Cashless Exercise to the extent permitted by the Company), any sums
required to satisfy the federal, state, local and foreign tax withholding
obligations of the Participating Company Group, if any, which arise in
connection with the Option, including, without limitation, obligations arising
upon (i) the exercise, in whole or in part, of the Option, (ii) the transfer, in
whole or in part, of any shares acquired upon exercise of the Option, (iii) the
operation of any law or regulation providing for the imputation of interest, or
(iv) the lapsing of any restriction with respect to any shares acquired upon
exercise of the Option. The Optionee is cautioned that the Option is not
exercisable unless the tax withholding obligations of the Participating Company
Group are satisfied. Accordingly, the Optionee may not be able to exercise the
Option when desired even though the Option is vested, and the Company shall have
no obligation to issue a certificate for such shares or release such shares from
any escrow provided for herein.

          4.5  CERTIFICATE REGISTRATION. Except in the event the Exercise Price
is paid by means of a Cashless Exercise, the certificate for the shares as to
which the Option is exercised

                                       57
<PAGE>
 
shall be registered in the name of the Optionee, or, if applicable, in the names
of the heirs of the Optionee.

          4.6  RESTRICTIONS ON GRANT OF THE OPTION AND ISSUANCE OF SHARES. The
grant of the Option and the issuance of shares of Stock upon exercise of the
Option shall be subject to compliance with all applicable requirements of
federal, state or foreign law with respect to such securities. The Option may
not be exercised if the issuance of shares of Stock upon exercise would
constitute a violation of any applicable federal, state or foreign securities
laws or other law or regulations or the requirements of any stock exchange or
market system upon which the Stock may then be listed. In addition, the Option
may not be exercised unless (i) a registration statement under the Securities
Act shall at the time of exercise of the Option be in effect with respect to the
shares issuable upon exercise of the Option or (ii) in the opinion of legal
counsel to the Company, the shares issuable upon exercise of the Option may be
issued in accordance with the terms of an applicable exemption from the
registration requirements of the Securities Act. THE OPTIONEE IS CAUTIONED THAT
THE OPTION MAY NOT BE EXERCISED UNLESS THE FOREGOING CONDITIONS ARE SATISFIED.
ACCORDINGLY, THE OPTIONEE MAY NOT BE ABLE TO EXERCISE THE OPTION WHEN DESIRED
EVEN THOUGH THE OPTION IS VESTED. Questions concerning this restriction should
be directed to the Chief Financial Officer of the Company. The inability of the
Company to obtain from any regulatory body having jurisdiction the authority, if
any, deemed by the Company's legal counsel to be necessary to the lawful
issuance and sale of any shares subject to the Option shall relieve the Company
of any liability in respect of the failure to issue or sell such shares as to
which such requisite authority shall not have been obtained. As a condition to
the exercise of the Option, the Company may require the Optionee to satisfy any
qualifications that may be necessary or appropriate, to evidence compliance with
any applicable law or regulation and to make any representation or warranty with
respect thereto as may be requested by the Company.

          4.7  FRACTIONAL SHARES.  The Company shall not be required to issue
fractional shares upon the exercise of the Option.

     5.   NONTRANSFERABILITY OF THE OPTION.  The Option may be exercised during
          --------------------------------                                     
the lifetime of the Optionee only by the Optionee or the Optionee's guardian or
legal representative and may not be assigned or transferred in any manner except
by will or by the laws of descent and distribution.  Following the death of the
Optionee, the Option, to the extent provided in Section 7, may be exercised by
the Optionee's legal representative or by any person empowered to do so under
the deceased Optionee's will or under the then applicable laws of descent and
distribution.

     6.   TERMINATION OF THE OPTION.  The Option shall terminate and may no
          -------------------------                                        
longer be exercised on the first to occur of (a) the Option Expiration Date, (b)
the last date for exercising the Option following termination of the Optionee's
Service as described in Section 7, or (c) a Transfer of Control to the extent
provided in Section 8.

                                       58
<PAGE>
 
     7.   EFFECT OF TERMINATION OF SERVICE.
          -------------------------------- 

          7.1  OPTION EXERCISABILITY.

               (a)  DISABILITY. If the Optionee's Service with the Participating
Company Group is terminated because of the Disability of the Optionee, the
Option, to the extent unexercised and exercisable on the date on which the
Optionee's Service terminated, may be exercised by the Optionee (or the
Optionee's guardian or legal representative) at any time prior to the expiration
of twelve (12) months after the date on which the Optionee's Service terminated,
but in any event no later than the Option Expiration Date.

               (b)  DEATH. If the Optionee's Service with the Participating
Company Group is terminated because of the death of the Optionee, the Option, to
the extent unexercised and exercisable on the date on which the Optionee's
Service terminated, may be exercised by the Optionee's legal representative or
other person who acquired the right to exercise the Option by reason of the
Optionee's death at any time prior to the expiration of twelve (12) months after
the date on which the Optionee's Service terminated, but in any event no later
than the Option Expiration Date. The Optionee's Service shall be deemed to have
terminated on account of death if the Optionee dies within three (3) months
after the Optionee's termination of Service.

               (c)  OTHER TERMINATION OF SERVICE. If the Optionee's Service with
the Participating Company Group terminates for any reason, except Disability or
death, the Option, to the extent unexercised and exercisable by the Optionee on
the date on which the Optionee's Service terminated, may be exercised by the
Optionee within three (3) months (or such other longer period of time as
determined by the Board, in its sole discretion) after the date on which the
Optionee's Service terminated, but in any event no later than the Option
Expiration Date.

          7.2  EXTENSION IF EXERCISE PREVENTED BY LAW.  Notwithstanding the
foregoing, if the exercise of the Option within the applicable time periods set
forth in Section 7.1 is prevented by the provisions of Section 4.6, the Option
shall remain exercisable until three (3) months after the date the Optionee is
notified by the Company that the Option is exercisable, but in any event no
later than the Option Expiration Date.

          7.3  EXTENSION IF OPTIONEE SUBJECT TO SECTION 16(B). Notwithstanding
the foregoing, if a sale within the applicable time periods set forth in Section
7.1 of shares acquired upon the exercise of the Option would subject the
Optionee to suit under Section 16(b) of the Exchange Act, the Option shall
remain exercisable until the earliest to occur of (i) the tenth (10th) day
following the date on which a sale of such shares by the Optionee would no
longer be subject to such suit, (ii) the one hundred and ninetieth (190th) day
after the Optionee's termination of Service, or (iii) the Option Expiration
Date.

          7.4  LEAVE OF ABSENCE. For purposes of Section 7.1, the Optionee's
Service with the Participating Company Group shall not be deemed to terminate if
the Optionee takes any military leave, sick leave, or other bona fide leave of
absence approved by the Company of

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<PAGE>
 
ninety (90) days or less. In the event of a leave of absence in excess of ninety
(90) days, the Optionee's Service shall be deemed to terminate on the ninety-
first (91st) day of such leave unless the Optionee's right to return to Service
with the Participating Company Group remains guaranteed by statute or contract.
Notwithstanding the foregoing, unless otherwise designated by the Company (or
required by law), a leave of absence shall not be treated as Service for
purposes of determining the Optionee's Vested Ratio.

     8.   TRANSFER OF CONTROL.
          ------------------- 

          8.1  DEFINITIONS.

               (a)  An "OWNERSHIP CHANGE EVENT" shall be deemed to have occurred
if any of the following occurs with respect to the Company:

                    (i)   the direct or indirect sale or exchange in a single or
series of related transactions by the stockholders of the Company of more than
fifty percent (50%) of the voting stock of the Company;

                    (ii)  a merger or consolidation in which the Company is a
party;

                    (iii) the sale, exchange, or transfer of all or
substantially all of the assets of the Company; or

                    (iv)  a liquidation or dissolution of the Company.

               (b)  A "TRANSFER OF CONTROL" shall mean an Ownership Change Event
or a series of related Ownership Change Events (collectively, the "TRANSACTION")
wherein the stockholders of the Company immediately before the Transaction do
not retain immediately after the Transaction, in substantially the same
proportions as their ownership of shares of the Company's voting stock
immediately before the Transaction, direct or indirect beneficial ownership of
more than fifty percent (50%) of the total combined voting power of the
outstanding voting stock of the Company or the corporation or corporations to
which the assets of the Company were transferred (the "TRANSFEREE
CORPORATION(S)"), as the case may be. For purposes of the preceding sentence,
indirect beneficial ownership shall include, without limitation, an interest
resulting from ownership of the voting stock of one or more corporations which,
as a result of the Transaction, own the Company or the Transferee
Corporation(s), as the case may be, either directly or through one or more
subsidiary corporations. The Board shall have the right to determine whether
multiple sales or exchanges of the voting stock of the Company or multiple
Ownership Change Events are related, and its determination shall be final,
binding and conclusive.

          8.2  EFFECT OF TRANSFER OF CONTROL ON OPTION. In the event of a
Transfer of Control, the surviving, continuing, successor, or purchasing
corporation or parent corporation thereof, as the case may be (the "ACQUIRING
CORPORATION"), may either assume the Company's rights and obligations under the
Option or substitute for the Option a substantially equivalent

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option for the Acquiring Corporation's stock. For purposes of this Section 8.2,
an Option shall be deemed assumed if, following the Transfer of Control, the
Option confers the right to purchase, for each share of Stock subject to the
Option immediately prior to the Transfer of Control, the consideration (whether
stock, cash or other securities or property) to which a holder of a share of
Stock on the effective date of the Transfer of Control was entitled. In the
event the Acquiring Corporation elects not to assume the Company's rights and
obligations under the Option or substitute for the Option in connection with the
Transfer of Control, any unexercised portion of the Option shall be immediately
exercisable and vested in full as of the date ten (10) days prior to the date of
the Transfer of Control. Any exercise of the Option that was permissible solely
by reason of this Section 8.2 shall be conditioned upon the consummation of the
Transfer of Control. The Option shall terminate and cease to be outstanding
effective as of the date of the Transfer of Control to the extent that the
Option is neither assumed or substituted for by the Acquiring Corporation in
connection with the Transfer of Control nor exercised as of the date of the
Transfer of Control. Notwithstanding the foregoing, shares acquired upon
exercise of the Option prior to the Transfer of Control and any consideration
received pursuant to the Transfer of Control with respect to such shares shall
continue to be subject to all applicable provisions of this Option Agreement
except as otherwise provided herein. Furthermore, notwithstanding the foregoing,
if the corporation the stock of which is subject to the Option immediately prior
to an Ownership Change Event described in Section 8.1(a)(i) constituting a
Transfer of Control is the surviving or continuing corporation and immediately
after such Ownership Change Event less than fifty percent (50%) of the total
combined voting power of its voting stock is held by another corporation or by
other corporations that are members of an affiliated group within the meaning of
Section 1504(a) of the Code without regard to the provisions of Section 1504(b)
of the Code, the Option shall not terminate unless the Board otherwise provides
in its sole discretion.

     9.   ADJUSTMENTS FOR CHANGES IN CAPITAL STRUCTURE.  In the event of any
          --------------------------------------------                      
stock dividend, stock split, reverse stock split, recapitalization, combination,
reclassification, or similar change in the capital structure of the Company,
appropriate adjustments shall be made in the number, Exercise Price and class of
shares of stock subject to the Option.  If a majority of the shares which are of
the same class as the shares that are subject to the Option are exchanged for,
converted into, or otherwise become (whether or not pursuant to an Ownership
Change Event) shares of another corporation (the "NEW SHARES"), the Board may
unilaterally amend the Option to provide that the Option is exercisable for New
Shares.  In the event of any such amendment, the Number of Option Shares and the
Exercise Price shall be adjusted in a fair and equitable manner, as determined
by the Board, in its sole discretion.  Notwithstanding the foregoing, any
fractional share resulting from an adjustment pursuant to this Section 9 shall
be rounded up or down to the nearest whole number, as determined by the Board,
and in no event may the Exercise Price be decreased to an amount less than the
par value, if any, of the stock subject to the Option.  The adjustments
determined by the Board pursuant to this Section 9 shall be final, binding and
conclusive.

     10.  RIGHTS AS A STOCKHOLDER, EMPLOYEE OR CONSULTANT.  The Optionee shall
          -----------------------------------------------                     
have no rights as a stockholder with respect to any shares covered by the Option
until the date of the issuance of a certificate for the shares for which the
Option has been exercised (as evidenced by the appropriate entry on the books of
the Company or of a duly authorized transfer agent of the 

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<PAGE>
 
Company). No adjustment shall be made for dividends, distributions or other
rights for which the record date is prior to the date such certificate is
issued, except as provided in Section 9. Nothing in this Option Agreement shall
confer upon the Optionee any right to continue in the Service of a Participating
Company or interfere in any way with any right of the Participating Company
Group to terminate the Optionee's Service as an Employee or Consultant, as the
case may be, at any time.

     11.  LEGENDS.  The Company may at any time place legends referencing any
          -------                                                            
applicable federal, state or foreign securities law restrictions on all
certificates representing shares of stock subject to the provisions of this
Option Agreement.  The Optionee shall, at the request of the Company, promptly
present to the Company any and all certificates representing shares acquired
pursuant to the Option in the possession of the Optionee in order to carry out
the provisions of this Section.

     12.  RESTRICTIONS ON TRANSFER OF SHARES.  No shares acquired upon exercise
          ----------------------------------                                   
of the Option may be sold, exchanged, transferred (including, without
limitation, any transfer to a nominee or agent of the Optionee), assigned,
pledged, hypothecated or otherwise disposed of, including by operation of law,
in any manner which violates any of the provisions of this Option Agreement, and
any such attempted disposition shall be void.  The Company shall not be required
(a) to transfer on its books any shares which will have been transferred in
violation of any of the provisions set forth in this Option Agreement or (b) to
treat as owner of such shares or to accord the right to vote as such owner or to
pay dividends to any transferee to whom such shares will have been so
transferred.

     13.  BINDING EFFECT.  Subject to the restrictions on transfer set forth
          --------------                                                    
herein, this Option Agreement shall inure to the benefit of and be binding upon
the parties hereto and their respective heirs, executors, administrators,
successors and assigns.

     14.  TERMINATION OR AMENDMENT.  The Board may terminate or amend the Plan
          ------------------------                                            
or the Option at any time; provided, however, that except as provided in Section
8.2 in connection with a Transfer of Control, no such termination or amendment
may adversely affect the Option or any unexercised portion hereof without the
consent of the Optionee unless such termination or amendment is necessary to
comply with any applicable law or government regulation.  No amendment or
addition to this Option Agreement shall be effective unless in writing.

     15.  INTEGRATED AGREEMENT.  This Option Agreement constitutes the entire
          --------------------                                               
understanding and agreement of the Optionee and the Participating Company Group
with respect to the subject matter contained herein, and there are no
agreements, understandings, restrictions, representations, or warranties among
the Optionee and the Participating Company Group with respect to such subject
matter other than those as set forth or provided for herein.  To the extent
contemplated herein, the provisions of this Option Agreement shall survive any
exercise of the Option and shall remain in full force and effect.

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<PAGE>
 
     16.  APPLICABLE LAW.  This Option Agreement shall be governed by the laws
          --------------                                                      
of the State of California as such laws are applied to agreements between
California residents entered into and to be performed entirely within the State
of California.


                                    CONSILIUM, INC.



                                    By:________________________________

                                    Title:_____________________________



     The Optionee represents that the Optionee is familiar with the terms and
provisions of this Option Agreement and hereby accepts the Option subject to all
of the terms and provisions thereof.  The Optionee hereby agrees to accept as
binding, conclusive and final all decisions or interpretations of the Board upon
any questions arising under this Option Agreement.


                                    OPTIONEE



Date:___________________________    ___________________________________

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