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                                                                   Exhibit 10.31

                                 SYNOPSYS, INC.

                   INTERNATIONAL EMPLOYEE STOCK PURCHASE PLAN

                           (As Amended August 1, 1999)

   I. PURPOSE

   The Synopsys, Inc. International Employee Stock Purchase Plan (the "Plan") is
intended to provide Eligible Employees of designated subsidiaries of the Company
with the opportunity to acquire a proprietary interest in the Company through
the periodic application of their payroll deductions to the purchase of shares
of the Company's common stock.

   II. DEFINITIONS

   For purposes of plan administration, the following terms shall have the
meanings indicated:

   Base Salary means all compensation paid as wages, salaries, commissions,
overtime, and bonuses, but excluding all of the following items (even if
included in taxable income): reimbursements, car allowances or other expense
allowances, severance pay, fringe benefits (cash and noncash), moving expenses,
deferred compensation, income attributable to stock options, restricted stock
grants, SARs and other equity-related incentive programs, and welfare benefits.

   Code means the Internal Revenue Code of 1986, as amended from time to time.

   Company means Synopsys, Inc., a Delaware corporation, and any corporate
successor to all or substantially all of the assets or voting stock of Synopsys,
Inc. which shall by appropriate action adopt the Plan.

   Common Stock means shares of the Company's common stock.

   Corporate Affiliate means any company which is a parent or subsidiary
corporation of the Company (as determined in accordance with Code Section 424),
including any parent or subsidiary

corporation which becomes such after the Effective Date.

   Effective Date means the first day of the initial offering period scheduled
to commence on May 3, 1993. However, for any Subsidiary which becomes a
Participating Subsidiary in the Plan after the first day of the initial offering
period, a subsequent Effective Date shall be designated with respect to
participation by its Eligible Employees.

   Eligible Employee means any person who is engaged, on a regularly-scheduled
basis of more than twenty (20) hours per week and more than five (5) months per
calendar year, in the rendition of personal services to any Participating
Subsidiary for earnings considered wages under Section 3121(a) of the Code, but
shall not include persons prohibited by the laws of the nation of their
residence or employment from participating in the Plan.

   Enrollment Date has the meaning ascribed to it in Section V.A.

   Participant means any Eligible Employee of a Participating Subsidiary who is
actively participating in the Plan.

   Participating Subsidiary means a Subsidiary of the Company that has been
designated as a Participating Subsidiary by the Board.

   Semi-Annual Entry Date means (i) during 1999 and each preceding calendar year
within an offering period in effect under the Plan, the first business day of
May and the first business day of November and (ii) during 2000 and all
subsequent calendar years within an offering period under the Plan, the first
business day of March
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and the first business day of September. The earliest Semi-Annual Entry Date
under the Plan shall be May 3, 1993.

   Semi-Annual Period of Participation means each period for which the
Participant actually participates in an offering period in effect under the
Plan. There shall be a maximum of four (4) periods of participation within each
offering period. Except as otherwise designated by the Plan Administrator, each
such period shall commence on the applicable Semi-Annual Entry Date.

   Semi-Annual Purchase Date means (i) during 1999 and each preceding year on
which shares of Common Stock are automatically purchased for Participants under
the Plan, the last business day of April and October, and (ii) during 2000 and
each subsequent year on which shares of Common Stock are automatically purchased
for Participants under the Plan, the last business day of February and August.

   Subsidiary shall mean any corporation described in Section 425(e) or (f) of
the Code.

   III. ADMINISTRATION

   The Plan shall be administered by the Board of Directors or a committee that
will satisfy Rule 16b-3 of the Securities and Exchange Commission, as in effect
with respect to the Company from time to time (in either case, the "Board"). The
Board may from time to time select a committee or persons (the "Plan
Administrator") to be responsible for any transactions.

   IV. OFFERING PERIODS

   The Plan shall be implemented in a series of offering periods. Each offering
period shall be of a duration of twenty-four (24) months or less as designated
by the Plan Administrator prior to the start date of any offering period, except
that offering periods that include the Semi-Annual Entry Date on November 1,
1999 shall be of a duration of twenty-two (22) months. Within each offering
period, there shall be a maximum of four (4) Semi-Annual Periods of
Participation.

   V. ELIGIBILITY AND PARTICIPATION

   A. Each Eligible Employee of a Participating Subsidiary shall be eligible to
participate in the Plan in accordance with the following provisions:

          - The Board may at any time designate one or more Subsidiaries as
          participating in the Plan. The names of all Participating Subsidiaries
          shall be shown on Exhibit A to the Plan, which shall be amended from
          time to time to reflect additions and deletions of Participating
          Subsidiaries; failure to show a Participating Subsidiary on Exhibit A
          shall not, however, prevent otherwise eligible employees of that
          Subsidiary from participating in the Plan. No Subsidiary participating
          in the Company's Employee Stock Purchase Plan effective May 3, 1993
          may be designated for participation in the Plan.

          - Each Eligible Employee will be automatically enrolled in the Plan in
          the offering period that begins on the first Semi-Annual Entry Date
          following the commencement of employment; thereafter, any Eligible
          Employee may enroll or re-enroll in the Plan in the offering period
          that begins as of any Semi-Annual Entry Date, or such other days as
          may be established by the Board from time to time (each, an
          "Enrollment Date"). To participate, an Eligible Employee must
          complete, sign, and submit to the Company an enrollment form
          prescribed by the Plan Administrator. Any enrollment form received by
          the Company by the 15th day of the month preceding an Enrollment Date
          (or by the Enrollment Date in the case of employees hired after such
          15th day), or such other date established by the Plan Administrator
          from time to time, will be effective on that Enrollment Date.
          Enrollment or re-enrollment by a Participant in the Plan on an
          Enrollment Date will constitute the grant by the Company to the
          Participant of an option to purchase shares of Common Stock from the
          Company under the Plan. At the end of each offering period, each
          Participant who has not withdrawn from the Plan will automatically be
          re-enrolled in the Plan in the offering period that begins on the
          Enrollment Date immediately following the date on which the option
          expires. Furthermore, except as may otherwise be determined by the
          Plan Administrator, each Participant who has not withdrawn from the
          Plan will automatically be re-enrolled in the Plan in each offering
          period that begins on an Enrollment Date on which the fair
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          market value per share of the Company's Common Stock is lower than
          the fair market value per share of the Company's Common Stock on the
          Enrollment Date for the offering period in which the Participant is
          then enrolled. Notwithstanding anything in the Plan to the contrary,
          if the fair market value (the "Authorization Date FVM") on the date
          (the "Authorization Date") on which additional shares of Common Stock
          are authorized for issuance hereunder by the Company's shareholders
          is higher than the fair market value at the beginning of any Offering
          Period that commenced prior to the Authorization Date, then, with
          respect to any of such authorized shares available to be issued on
          Purchase Dates relating to such Offering Period, the Authorization
          Date FMV shall be used instead of the fair market value on the
          Enrollment Date for the purposes of the preceding sentence, provided
          that the Plan Administrator, in its discretion, may waive application
          of this sentence with respect to the first Purchase Date occurring
          after the Authorization Date.

          - An individual who becomes an Eligible Employee immediately following
          termination of such employee's participation in the Synopsys, Inc.
          Employee Stock Purchase Plan shall, for purposes of participation in
          the Plan, have a deemed Enrollment Date corresponding to such
          employee's most recent Enrollment Date under the Synopsys, Inc.
          Employee Stock Purchase Plan.

   B. The payroll deduction authorized by the Participant for purposes of
acquiring shares of Common Stock under the Plan may be zero percent (0%) or any
whole multiple of one percent (1%) of the Base Salary paid to the Participant
during each Semi-Annual Period of Participation within the offering period, up
to a maximum of ten percent (10%). The deduction rate so authorized shall
continue in effect for the entire Semi-Annual Period of Participation and for
each successive Semi-Annual Period of Participation unless (i) the Participant
shall change the rate for a subsequent Semi-Annual Period of Participation by
filing the appropriate form with the Plan Administrator prior to the
commencement of that Semi-Annual Period of Participation or (ii) the Participant
shall change the rate within a Semi-Annual Period of Participation by filing the
appropriate form with the Plan Administrator. The new rate shall become
effective as soon as practicable following the filing of such form. A
Participant may not increase or decrease the deduction rate more than once per
Semi-Annual Period of Participation in addition to fixing the rate at the
beginning of the Semi-Annual Period of Participation. Payroll deductions,
however, will automatically cease upon the termination of the Participant's
purchase right in accordance with Article VII below.

   C. In no event may any Participant's payroll deductions for any one
Semi-Annual Period of Participation exceed Seven Thousand Five Hundred Dollars
($7,500.00) calculated on the Purchase Date following conversion of accumulated
withholdings into U.S. Dollars.

   D. It is intended that all eligible employees shall have substantially
equivalent rights and privileges with respect to the Plan; notwithstanding any
other provision of the Plan, however, the Plan Administrator may make such
changes in the terms of eligibility and participation from Subsidiary to
Subsidiary that it determines, in its discretion, to be necessary or desirable
to reflect or comply with local laws or conditions.

   VI. STOCK SUBJECT TO PLAN

   A. The Common Stock purchasable by Participants under the Plan shall, solely
in the discretion of the Plan Administrator, be made available from either
authorized but unissued shares of the Common Stock or from shares of Common
Stock reacquired by the Company, including shares of Common Stock purchased on
the open market. The total number of shares which may be issued under the Plan
shall not exceed 5,050,000 shares, less any shares sold under the Synopsys, Inc.
Employee Stock Purchase Plan (subject to adjustment under Section VI.B below).
Such share reserve includes the increase of 1,500,000 shares approved by the
Board in December 1998 and approved by the stockholders in March 1999.

   B. In the event any change is made to the Company's outstanding Common Stock
by reason of any stock dividend, stock split, combination of shares or other
change affecting such outstanding Common Stock as a class without receipt of
consideration, then appropriate adjustments shall be made by the Plan
Administrator to (i) the class and maximum number of shares issuable over the
term of the Plan, (ii) the class and maximum number of shares purchasable per
Participant during each Semi-Annual Period of Participation, (iii) the class and
maximum number of shares purchasable in the aggregate by all Participants on any
one purchase date under the Plan and (iv) the class and number of shares and the
price per share of the Common Stock subject to each purchase right at the time
outstanding under the Plan. Such adjustments shall be designed to preclude the
dilution or enlargement of rights and benefits under the Plan.

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   VII. PURCHASE RIGHTS

   An Employee who participates in the Plan for a particular offering period
shall have the right to purchase shares of Common Stock, in a series of
successive installments during such offering period, upon the terms and
conditions set forth below and shall execute such agreements and documents
embodying such terms and conditions and such other provisions (not inconsistent
with the Plan) as the Plan Administrator may deem advisable.

   Purchase Price. Common Stock shall be issuable on each Semi-Annual Purchase
Date at a purchase price equal to eighty-five percent (85%) of the lower of (i)
the fair market value per share on the Participant's Enrollment Date or (ii)
the fair market value per share on the Semi-Annual Purchase Date.
Notwithstanding anything in the Plan to the contrary, if the Authorization Date
FVM is higher than the fair market value at the beginning of any Offering Period
that commenced prior to the Authorization Date, then, with respect to any of
such authorized shares available to be issued on Purchase Dates relating to such
Offering Period, the Authorization Date FMV shall be used instead of the fair
market value on the Enrollment Date for the purposes of clause (i) of the
preceding sentence, provided that the Plan Administrator, in its discretion, may
waive application of this sentence with respect to the first Purchase Date
occurring after the Authorization Date.

   Valuation. The fair market value per share of Common Stock on any relevant
date shall be the closing selling price of the Common Stock on that date, as
officially quoted on the Nasdaq National Market System. If there is no quoted
selling price for such date, then the closing selling price on the next
preceding day for which there does exist such a quotation shall be determinative
of fair market value.

   Number of Purchasable Shares. The number of shares purchasable per
Participant on each Semi-Annual Purchase Date shall be the number of whole
shares obtained by dividing the amount collected, after conversion into U.S.
Dollars on the Purchase Date, from the Participant through payroll deductions
during the corresponding Semi-Annual Period of Participation by the purchase
price in effect for the Semi-Annual Purchase Date. However, no Participant may,
during any one Semi-Annual Purchase Period, purchase more than 2,000 shares of
Common Stock, subject to periodic adjustment under Section VI.B.

   Under no circumstances shall purchase rights be granted under the Plan to any
Eligible Employee if such individual would, immediately after the grant, own
(within the meaning of Code Section 424(d)) or hold outstanding options or other
rights to purchase, stock possessing five percent (5%) or more of the total
combined voting power or value of all classes of stock of the Company or any of
its Corporate Affiliates.

   Payment. Payment for the Common Stock purchased under the Plan shall be
effected by means of the Participant's authorized payroll deductions. Such
deductions shall begin on the first pay day coincident with or immediately
following the Participant's Enrollment Date into the offering period and shall
(unless sooner terminated by the Participant) continue through the pay day
ending with or immediately prior to the last day of the offering period. The
amounts so collected shall be credited to the Participant's book account under
the Plan in local currency, but no interest shall be paid on the balance from
time to time outstanding in such account. The amounts collected from a
Participant may be commingled with the general assets of the Company and/or any
Participating Subsidiary and may be used for general corporate purposes. Upon
disposition of shares acquired by exercise of purchase right, the Participant
shall pay, or make provision adequate to the Company and the Participating
Subsidiary for payment of, all federal, state, and other tax (and similar)
withholdings that the Company or the Participating Subsidiary determines, in its
discretion, are required due to the disposition, including any such withholding
that the Company or the Participating Subsidiary determines, in its discretion,
is necessary to allow the Company or the Participating Subsidiary to claim tax
deductions or other benefits in connection with the disposition. A Participant
shall make such similar provisions for payment that the Company or the
Participating Subsidiary determines, in its discretion, are required due to the
exercise of purchase right, including such provisions as are necessary to allow
the Company or the Participating Subsidiary to claim tax deductions or other
benefits in connection with the exercise of purchase right.

   Termination of Purchase Right. The following provisions shall govern the
termination of outstanding purchase rights:

               (i) A Participant may, at any time prior to the last five (5)
               business days of the Semi-Annual Period of Participation,
               terminate his/her outstanding purchase right under the Plan by
               filing the prescribed notification form with the Plan
               Administrator. No further payroll deductions
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               shall be collected from the Participant with respect to the
               terminated purchase right, and any payroll deductions collected
               for the Semi-Annual Period of Participation in which such
               termination occurs shall, at the Participant's election, be
               immediately refunded or held for the purchase of shares on the
               next Semi-Annual Purchase Date. If no such election is made, then
               such funds shall be refunded as soon as possible after the close
               of such Semi-Annual Period of Participation.

               (ii) The termination of such purchase right shall be irrevocable,
               and the Participant may not subsequently rejoin the offering
               period for which such terminated purchase right was granted. In
               order to resume participation in any subsequent offering period,
               such individual must enroll in the Plan in accordance with
               Section V.A.

               (iii) Should a Participant cease to remain an Eligible Employee
               while his/her purchase right remains outstanding or should there
               otherwise occur a change in such individual's employee status so
               that he/she is no longer an Eligible Employee while holding such
               purchase right, then such purchase right shall immediately
               terminate upon such termination of service or change in status
               and all sums previously collected from the Participant during the
               Semi-Annual Period of Participation in which the purchase right
               so terminates shall be promptly refunded to the Participant.
               However, should the Participant die or become permanently
               disabled while in service or should the Participant cease
               employment by reason of a leave of absence, then the Participant
               (or the person or persons to whom the rights of the deceased
               Participant under the Plan are transferred by will or the laws of
               inheritance) shall have the election, exercisable up until the
               end of the Semi-Annual Period of Participation in which the
               Participant dies or becomes permanently disabled or in which the
               leave of absence commences, to (i) withdraw all the funds
               credited to the Participant's account at the time of his/her
               cessation of service or at the commencement of such leave or (ii)
               have such funds held for the purchase of shares of Common Stock
               at the next Semi-Annual Purchase Date. If no such election is
               made, then such funds shall automatically be held for the
               purchase of shares of Common Stock at the next Semi-Annual
               Purchase Date. In no event, however, shall any further payroll
               deductions be added to the Participant's account following
               his/her cessation of service or the commencement of such leave;
               provided, however, that if a Participant's employment is
               terminated because of a transfer of employment to the Company or
               any subsidiary of the Company other than a Participating
               Subsidiary, any outstanding purchase right shall not terminate
               until the occurrence of the earlier of (x) the last Semi-Annual
               Purchase Date in the offering period or (y) enrollment of the
               Participant in the Company's Employee Stock Purchase Plan. While
               a purchase right remains outstanding, the Company or other
               subsidiary to which the participant is transferred shall effect
               payroll deductions authorized by the Participant and shall remit
               them to the Participating Subsidiary that employed the
               Participant at the time of the transfer for purposes of acquiring
               shares of Common Stock under the Plan. Following approval by the
               Company and the Participating Subsidiary, the Participant may, in
               lieu of payroll deduction, pay a corresponding amount to the
               Participating Subsidiary if such amount is received on or before
               the relevant Purchase Date. Should the Participant return to
               active service following a leave of absence, then his/her payroll
               deductions under the Plan shall automatically resume at the rate
               in effect at the time the leave began, provided such return to
               service occurs prior to the end of the offering period in which
               such leave began. For purpose of the Plan: (i) the Participant
               shall be considered to remain in service for so long as such
               Participant remains in the active employ of the Company or one or
               more other Participating Subsidiaries and (ii) the Participant
               shall be deemed to be permanently disabled if he/she is unable to
               engage in any substantial gainful employment, by reason of any
               medically determinable physical or mental impairment expected to
               result in death or to be of continuous duration of at least
               twelve (12) months.

   Stock Purchase. Shares of Common Stock shall automatically be purchased on
behalf of each Participant (other than Participants whose payroll deductions
have previously been refunded or set aside for refund in accordance with the
Termination of Purchase Right provisions above) on each Semi-Annual Purchase
Date. The purchase shall be effected by applying each Participant's payroll
deductions after conversion to U.S. Dollars for the Semi-Annual Period of
Participation ending on such semiannual Purchase Date (together with any
carryover deductions from the preceding Semi-Annual Period of Participation) to
the purchase of whole shares of Common Stock (subject to the limitation on the
maximum number of purchasable shares as set forth above) at the purchase price
in effect for such Semi-Annual Period of Participation. Any payroll deductions
not applied

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to such purchase because they are not sufficient to purchase a whole share shall
be held in local currency for the purchase of Common Stock in the next
Semi-Annual Period of Participation. However, any payroll deductions not applied
to the purchase of Common Stock by reason of the limitation on the maximum
number of shares purchasable by the Participant for that Semi-Annual Period of
Participation shall be promptly refunded to the Participant.

   Proration of Purchase Rights. Not more than 500,000 shares of Common Stock,
subject to periodic adjustment under Section VI.B, may be purchased in the
aggregate by all participants under the Plan and under the Synopsys, Inc.
Employee Stock Purchase Plan on any one Semi-Annual Purchase Date. Should the
total number of shares of Common Stock which are to be purchased pursuant to
outstanding purchase rights on any particular date exceed either (i) the maximum
limitation on the number of shares purchasable in the aggregate on such date or
(ii) the number of shares then available for issuance under the Plan and the
Synopsys, Inc. Employee Stock Purchase Plan, the Plan Administrator shall make a
pro-rata allocation of the available shares on a uniform and non-discriminatory
basis (including, to the extent practicable vis a vis participants in the
Synopsys, Inc. Employee Stock Purchase Plan) and the payroll deductions for each
Participant, to the extent in excess of the aggregate purchase price payable for
the Common Stock pro-rated to such individual, shall be refunded to such
Participant.

   Rights as Stockholder. A Participant shall have no stockholder rights with
respect to the shares subject to his/her outstanding purchase right until the
shares are actually purchased on the Participant's behalf in accordance; with
the applicable provisions of the Plan. No adjustments shall be made for
dividends, distributions, or other rights for which the record date is prior to
the date of such purchase.

   Assignability. No purchase right granted under the Plan shall be assignable
or transferable by the Participant other than by will or by the laws of descent
and distribution following the Participant's death, and during the Participant'
s lifetime the purchase right shall be exercisable only by the Participant.

   Change in Ownership. Should the Company or its stockholders enter into an
agreement to dispose of all or substantially all of the assets or outstanding
capital stock of the Company by means of:

               (i) A sale, merger or other reorganization in which the Company
               will not be the surviving corporation (other than a
               reorganization effected primarily to change the State in which
               the Company is incorporated), or

               (ii) a reverse merger in which the Company is the surviving
               corporation but in which more than fifty percent (50%) of the
               Company's outstanding voting stock is transferred to holders
               different from those who held the stock immediately prior to the
               reverse merger,

   then all outstanding purchase rights under the Plan shall automatically be
exercised immediately prior to the consummation of such sale, merger,
reorganization or reverse merger by applying the payroll deductions of each
Participant, after conversion into U.S. Dollars on the date of purchase, for the
Semi-Annual Period of Participation in which such transaction occurs to the
purchase of whole shares of Common Stock at eighty-five percent (85%) of the
lower of (i) the fair market value of the Common Stock on the Participant's
Enrollment Date into the offering period in which such transaction occurs or
(ii) the fair market value of the Common Stock immediately prior to the
consummation of such transaction. However, the applicable share limitations of
Sections VII and VIII shall continue to apply to any such purchase, and the
clause (i) amount above shall not, for any Participant whose Enrollment Date for
the offering period is other than the start date of such offering period, be
less than the fair market value of the Common Stock on such start date.

   The Company shall use its best efforts to provide at least ten (10) days'
advance written notice of the occurrence of any such sale, merger,
reorganization or reverse merger, and Participants shall, following the receipt
of such notice, have the right to terminate their outstanding purchase rights in
accordance with the applicable provisions of this Article VII.

   VIII. ACCRUAL LIMITATIONS

   A. No Participant shall be entitled to accrue rights to acquire Common Stock
pursuant to any purchase right outstanding under this Plan if and to the extent
such accrual, when aggregated with (i) rights to purchase Common Stock accrued
under any other purchase right outstanding under this Plan and (ii) similar
rights accrued under other employee stock purchase plans (within the meaning of
Section 423 of the Code) of the

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Company and its Corporate Affiliates would otherwise permit such Participant to
purchase more than $25,000 worth of stock of the Company or any Corporate
Affiliate (determined on the basis of the fair market value of such stock on the
date or dates such rights are granted to the Participant) for each calendar year
such rights are at any time outstanding.

   B. For purposes of applying such accrual limitations, the right to acquire
Common Stock pursuant to each purchase right outstanding under the Plan shall
accrue as follows:

               (i) The right to acquire Common Stock under each such purchase
               right shall accrue in a series of successive semi-annual
               installments as and when the purchase right first becomes
               exercisable for each semi-annual installment on the last business
               day of each Semi-Annual Period of Participation for which the
               right remains outstanding.

               (ii) No right to acquire Common Stock under any outstanding
               purchase right shall accrue to the extent the Participant has
               already accrued in the same calendar year the right to acquire
               $25,000 worth of Common Stock (determined on the basis of the
               fair market value on the date or dates of grant) pursuant to one
               or more purchase rights held by the Participant during such
               calendar year.

               (iii) If by reason of such accrual limitations, any purchase
               right of a Participant does not accrue for a particular
               Semi-Annual Period of Participation, then the payroll deductions
               which the Participant made during that Semi-Annual Period of
               Participation with respect to such purchase right shall be
               promptly refunded.

   C. In the event there is any conflict between the provisions of this Section
VIII and one or more provisions of the Plan or any instrument issued thereunder,
the provisions of this Section VIII shall be controlling.

   IX. AMENDMENT AND TERMINATION

   A. The Board may amend, alter, suspend, discontinue, or terminate the Plan at
any time, including amendments to outstanding options/purchase rights. However,
the Board may not, without the approval of the Company's stockholders:

               (i) Increase the number of shares issuable under the Plan or the
               maximum number of shares which may be purchased per Participant
               or in the aggregate during any one Semi-Annual Period of
               Participation under the Plan, except that the Plan Administrator
               shall have the authority, exercisable without such stockholder
               approval, to effect adjustments to the extent necessary to
               reflect changes in the Company's capital structure pursuant to
               Section VI.B;

               (ii) alter the purchase price formula so as to reduce the
               purchase price payable for the shares issuable under the Plan; or

               (iii) materially increase the benefits accruing to Participants
               under the Plan or materially modify the requirements for
               eligibility to participate in the Plan.

   B. The Board may elect to terminate any or all outstanding purchase rights at
any time. In the event the Plan is terminated, the Board may also elect to
terminate outstanding purchase rights either immediately or upon completion of
the purchase of shares on the next Semi-Annual Purchase Date, or may elect to
permit purchase rights to expire in accordance with their terms (and
participation to continue through such expiration dates). If purchase rights are
terminated prior to expiration, all funds contributed to the Plan that have not
been used to purchase shares shall be returned to the Participants as soon as
administratively feasible.

   X. GENERAL PROVISIONS

   A. The Plan shall become effective on the date on which it is adopted by the
Board, provided the Company has complied with all applicable requirements
established by law or regulation.

   B. All costs and expenses incurred in the administration of the Plan shall be
paid by the Company.

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   C. Neither the action of the Company in establishing the Plan, nor any action
taken under the Plan by the Board or the Plan Administrator, nor any provision
of the Plan itself shall be construed so as to grant any person the right to
remain in the employ of the Company or any of its Corporate Affiliates for any
period of specific duration, and such person's employment may be terminated at
any time, with or without cause.

   D. The provisions of the Plan shall be governed by the laws of the State of
California without resort to that State's conflict-of-laws rules.

   E. If the Plan Administrator in its discretion so elects, it may retain a
brokerage firm, bank, or other financial institution to assist in the purchase
of shares, delivery of reports, or other administrative aspects of the Plan. If
the Plan Administrator so elects, each Participant shall (unless prohibited by
the laws of the nation of his or her employment or residence) be deemed upon
enrollment in the Plan to have authorized the establishment of an account on his
or her behalf at such institution. Shares purchased by a Participant under the
Plan shall be held in the account in the name in which the share certificate
would otherwise be issued pursuant to Section VII.


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                                   Schedule A

                           Companies Participating in
                      International Employee Stock Purchase
                          Plan As of the Effective Date

        Subsidiary                                                       Name
        ----------                                                       ----

        Germany                                                 Synopsys GmbH

        France                                                  Synopsys SARL

        United Kingdom                        Synopsys (Northern Europe) Ltd.

        Japan                                        Nihon Synopsys Co., Ltd.

        Korea                                            Synopsys Korea, Inc.