Pegasystems Inc.                    Appendix A

                          1994 Long-Term Incentive Plan

                    As Amended and Restated on April 22, 1998


SECTION 1.  Purpose; Definitions.

        The name of this Plan is the Pegasystems Inc. 1994 Long-Term Incentive
Plan (the "Plan"). The purpose of the Plan is to provide incentives: (a) to
employees of Pegasystems Inc. (the "Corporation") by providing them with
opportunities to purchase stock in the Corporation pursuant to options granted
hereunder which qualify as Incentive Stock Options under Section 422 of the
Internal Revenue Code of 1986; (b) to directors (whether or not employees),
employees and consultants of the Corporation by providing them with
opportunities to purchase stock in the Corporation pursuant to options granted
hereunder which do not qualify as Incentive Stock Options under Section 422 of
the Internal Revenue Code of 1986, and otherwise to participate in shareholder
value which has been created.

          For the purposes of the Plan, the following terms shall be defined as
set forth below:

          a.   "Award" means any Option, Stock Appreciation Right, Restricted
               Stock or Long-Term Award granted under this Plan.

          b.   "Board" means the Board of Directors of the Corporation.

          c.   "Cause" means a felony conviction of a Participant or the failure
               of a Participant to contest prosecution for a felony, or a
               Participant's willful misconduct or dishonesty, any of which is
               directly and materially harmful to the business or reputation of
               the Corporation.

          d.   "Code" means the Internal Revenue Code of 1986, as amended from
               time to time, and any successor thereto.

          e.   "Committee" means a Compensation Committee of the Board, if such
               Committee has been appointed by the Board and has been authorized
               to administer the Plan Such Committee will consist of two or more
               members of the Board. In the event the Corporation registers any
               class of any equity security pursuant to Section 12 of the
               Securities Exchange Act of 1934, as amended (the "Exchange Act"),
               each member of the Committee shall be a "Disinterested Person" as
               defined below. All references herein to the Committee shall mean
               the Board if there is no Committee so appointed. From time to
               time the Board may increase the size of the Committee and appoint
               additional members thereof, remove members (with or without
               cause), and appoint new members in substitution thereof, fill
               vacancies however caused, or remove all members of the Committee
               and thereafter directly administer the Plan.

          f.   "Corporation" means Pegasystems Inc., a corporation organized
               under the laws of the Commonwealth of Massachusetts, or any
               successor organization.

          g.   "Disability" means permanent and total disability as determined
               under the Corporation's long-term disability program.

                                       




          h.   "Disinterested Person" shall have the meaning set forth in Rule
               16b-3(c)(2)(i) as promulgated by the Securities and Exchange
               Commission under the Exchange Act, or any successor definition
               adopted by the Securities and Exchange Commission.

          i.   "Early Retirement" means that a Participant has attained the
               consent of the Committee to retire prior to having attained age
               60 or qualifies for early retirement pursuant to the early
               retirement provisions as set forth in a pension plan of the
               Corporation in which the Optionee is a participant.

          j.   "Fair Market Value" means, as of any given date, the mean of the
               highest and lowest quoted selling prices of the Stock on the
               exchange on which the Corporation's shares are listed for trading
               (consolidated trading) or, if no such sale occurs on the exchange
               on such date, the fair market value of the Stock as determined by
               the Committee in good faith based on the best available facts and
               circumstances at the time.

          k.   "Incentive Stock Option" means any Stock Option intended to be
               and designated as an "Incentive Stock Option" within the meaning
               of Section 422 of the Code.

          l.   "Insider" means a Participant who is subject to the requirements
               of the Rules (as defined below).

          m.   "Long-Term Performance Award" or "Long-Term Award" means an award
               made pursuant to Section 8 below that is payable in cash and/or
               Stock (including Restricted Stock) in accordance with the terms
               of the grant, based on Corporation, business unit and/or
               individual performance over a period of at least two years.

          n.   "Non-Qualified Stock Option" means any Stock Option that is not
               an Incentive Stock Option.

          o.   "Normal Retirement" means retirement of a Participant from active
               employment with the Corporation and any subsidiary or affiliate
               after either having attained age 60 or pursuant to the normal
               retirement provisions of an applicable pension plan of the
               Corporation.

          p.   "Option" means any Incentive Stock Option or Non-Qualified Stock
               Option to purchase shares of Stock (including Restricted Stock,
               if the Committee so determines) granted pursuant to Section 5
               below.

          q.   "Optionee" means a Participant who is the recipient of any
               Incentive Stock Option or Non-Qualified Stock Option under this
               Plan.

          r.   "Participant" means anyone to whom an Award is granted pursuant
               to the Plan.

          s.   "Plan" means the Pegasystems Inc. 1994 Long-Term Incentive Plan,
               as hereinafter amended from time to time.

          t.   "Restricted Stock" means an award of shares of Stock that is
               subject to restrictions pursuant to Section 7 below.

          u.   "Retirement" means Normal or Early Retirement.


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          v.   "Rules" means Section 16 of the Securities Exchange Act of 1934,
               as amended (the "Exchange Act") and the regulations promulgated
               thereunder.

          w.   "Securities Broker" means the registered securities broker
               acceptable to the Corporation who agrees to effect the cashless
               exercise of an Option pursuant to Section 5(m) hereof.

          x.   "Stock" means the Common Stock, $.01 par value per share, of the
               Corporation.

          y.   "Stock Appreciation Right" means the right, pursuant to an award
               granted under Section 6 below, to surrender to the Corporation
               all (or a portion) of a Stock Option in exchange for an amount
               equal to the difference between (i) the Fair Market Value (or
               such lesser ceiling as may be specified in the option grant), as
               of the date such Stock Option (or such portion thereof) is
               surrendered, of the shares of Stock covered by such Stock Option
               (or such portion thereof), and (ii) the aggregate exercise price
               of such Stock Option (or such portion thereof).

SECTION 2.  Administration

The Plan shall be administered by the Committee.

         The Committee shall have the authority to grant to eligible
Participants, pursuant to the terms of the Plan: (i) Stock Options, (ii) Stock
Appreciation Rights, (iii) Restricted Stock and/or (iv) Long-Term Performance
Awards.

         In particular, the Committee shall have the authority:

          (i)  to select the Participants to whom Stock Options, Stock
               Appreciation Rights, Restricted Stock and Long-Term Performance
               Awards may from time to time be granted hereunder.

          (ii) to determine whether and to what extent Incentive Stock Options,
               Non-Qualified Stock Options, Stock Appreciation Rights,
               Restricted Stock and Long-Term Performance Awards, or any
               combination thereof, are to be granted hereunder;

         (iii) to determine the number of shares to be covered by each such
               award granted hereunder;

          (iv) to determine the terms and conditions, not inconsistent with the
               terms of the Plan, of any award granted hereunder including, but
               not limited to, the share price and any restriction or
               limitation, or any vesting acceleration or forfeiture waiver
               regarding any Stock Option or other award and/or the shares of
               Stock relating thereto, based on such factors as the Committee
               shall determine, in its sole discretion;

          (v)  to determine whether and under what circumstances a Stock Option
               may be settled in cash or stock, including Restricted Stock under
               Section 5(k);

          (vi) to determine whether and under what circumstances a Stock Option
               may be exercised without a payment of cash under Section 5(1);
               and

         (vii) to determine whether, to what extent and under what
               circumstances Stock and other amounts payable with respect to an
               award under this Plan shall be deferred either automatically or
               at the election of the Participant.


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        The Committee shall have the authority to adopt, alter and repeal such
administrative rules, guidelines and practices governing the Plan as it shall,
from time to time, deem advisable; to interpret the terms and provisions of the
Plan and any award issued under the Plan (and any agreements relating thereto);
and to otherwise supervise the administration of the Plan.

        All decisions made by the Committee pursuant to the provisions of the
Plan shall be final and binding on all persons, including the Corporation and
Plan Participants.

SECTION 3.  Stock Subject to the Plan

          (a)  Stock Subject to Plan. The stock to be subject or related to
               awards under the Plan shall be shares of the Corporation's Stock
               and may be either authorized and unissued or held in the treasury
               of the Corporation. The maximum number of shares of Stock
               authorized with respect to the grant of awards under the Plan,
               subject to adjustment in accordance with paragraph 3(c) below,
               shall be up to 7,500,000 shares of Stock; any or all of such
               7,500,000 shares of Stock may be granted for awards of Incentive
               Stock Options. In addition, shares equal to 2% of Stock
               outstanding shares at the start of each Fiscal Year shall each
               year be reserved exclusively for the granting of replacement
               Options under Section 5(e) below to all Participants. Such
               additional authorization of Stock for the granting of replacement
               Options shall not, at any time, cause the maximum shareholder
               dilution caused by the Plan to exceed the 7,500,000 shares of
               Stock authorized for grant under the Plan. Notwithstanding the
               foregoing, no individual shall receive, over the term of the
               Plan, more than an aggregate of 30% of the shares authorized for
               grant under the Plan, including shares subject to replacement
               Options awarded under the Plan.

          (b)  Unused, Forfeited and Reacquired Shares. The shares related to
               the unexercised or undistributed portion of any terminated,
               expired or forfeited Award for which no material benefit was
               received by a Participant (i.e. dividends) shall be made
               available for distribution in connection with future awards under
               the Plan to the extent permitted to receive exemptive relief
               pursuant to the Rules. Any shares made available for distribution
               in connection with future awards under this Plan pursuant to this
               paragraph (b) shall be in addition to the shares available
               pursuant to paragraph (a) of this Section 3.

          (c)  Other Adjustments. In the event of any merger, reorganization,
               consolidation, recapitalization, Stock dividend, or other change
               in corporate structure affecting the Stock, such substitution or
               adjustment shall be made in the aggregate number of shares
               reserved for issuance under the Plan, in the number and option
               price of shares subject to outstanding Options granted under the
               Plan and in the number and price of shares subject to other
               Awards made under the Plan, as may be determined to be
               appropriate by the Committee in its sole discretion, provided
               that the number of shares subject to any award shall always be a
               whole number. Such adjusted option price shall also be used to
               determine the amount payable by the Corporation upon the exercise
               of any Stock Appreciation Right associated with any Stock Option.

SECTION 4.  Eligibility

         Directors (whether or not employees of the Corporation), consultants
and employees of the Corporation who are responsible for or who contribute to
the management, growth and/or profitability


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of the Corporation and/or any Subsidiary (as defined below) or affiliate of the
Corporation are eligible to be granted Awards under the Plan.

SECTION 5.      Stock Options

         Stock Options may be granted alone, in addition to or in tandem with
other awards granted under the Plan. Any Stock Option granted under the Plan
shall be in such form as the Committee may from time to time approve.

         Stock Options granted under the Plan may be of two types: (i) Incentive
Stock Options and (ii) Non-Qualified Stock Options.

         With the exception of Optionees who are either (i) consultants or (ii)
directors who are not also employees of the corporation, who shall not be
eligible to receive Incentive Stock Options, the Committee shall have the
authority to grant any Optionee Incentive Stock Options, Non-Qualified Stock
Options, or both types of Stock Options (in each case with or without Stock
Appreciation Rights). To the extent that any Stock Option does not qualify as an
Incentive Stock Option, it shall constitute a separate Non-Qualified Stock
Option.

         Anything in the Plan to the contrary notwithstanding, no term of this
Plan relating to Incentive Stock Options shall be interpreted, amended or
altered, nor shall any discretion or authority granted under the Plan be so
exercised, so as to disqualify the Plan under Section 422 of the Code, or,
without the consent of the Optionee(s) affected, to disqualify any Incentive
Stock Option under such Section 422.

         Options granted under the Plan shall be subject to the following terms
and conditions and shall contain such additional terms and conditions, not
inconsistent with the terms of the Plan, as the Committee shall deem
appropriate:

          (a)  Option Price. The option price per share of Stock purchasable
               under a Stock Option shall be determined by the Committee at the
               time of grant, but for Non-Qualified Stock Options shall not be
               less than 50% of the Fair Market Value of the Stock at the time
               of grant, and for Incentive Stock Options shall be not less than
               100% of the Fair Market Value of the Stock at the time of grant.
               However, any Incentive Stock Option granted to any Optionee who,
               at the time the Option is granted, owns more than 10% of the
               voting power of all classes of stock of the Corporation or of a
               Parent or Subsidiary corporation, shall have an exercise price no
               less than 110% of Fair Market Value per share on date of the
               grant. The term "Parent" and "Subsidiary" as used herein shall
               mean "parent corporation" and "subsidiary corporation" as those
               terms are defined in Section 424 of the Code.

          (b)  Option Term. The term of each Stock Option shall be fixed by the
               Committee, but no Incentive Stock Option or Non-Qualified Stock
               Option shall be exercisable more than ten years after the date
               the Option is granted. However, any Option granted to any
               Optionee who at the time the Option is granted owns more than 10%
               of the voting power of all classes of Stock of the Corporation or
               of a Parent or Subsidiary corporation may not have a term of more
               than five years. No Option may be exercised by any person after
               expiration of the term of the Option.

          (c)  Exercisability. Stock Options shall be exercisable at such time
               or times and subject to such terms and conditions as shall be
               determined by the Committee at or after grant, provided, 


                                       5




               however, that, except as provided in Section 5(g), unless 
               otherwise determined by the Committee at or after grant, no Stock
               Option shall be exercisable during the six months following the 
               date of the granting of the Option. If the Committee provides, in
               its discretion, that any Stock Option is exercisable only in
               installments, the Committee may waive such installment exercise
               provisions at any time at or after grant in whole or in part,
               based on such factors as the Committee shall determine, in its
               sole discretion.

          (d)  Method of Exercise. Subject to whatever installment exercise
               provisions apply under Section 5(c), Stock Options may be
               exercised in whole or in part at any time and from time to time
               during the Option period, by giving written notice of exercise to
               the Corporation specifying the number of shares to be purchased.
               Such notice shall be accompanied by payment in full of the
               purchase price, either by certified or bank check, or such other
               instrument as the Committee may accept. As determined by the
               Committee, in its sole discretion, at or after grant, payment in
               full or in part may also be made in the form of unrestricted
               Stock already owned by the Optionee or, in the case of the
               exercise of a Non-Qualified Stock Option or Restricted Stock
               subject to an award hereunder (based, in each case, on the Fair
               Market Value of the Stock on the date the Option is exercised, as
               determined by the Committee), provided, however, that, in the
               case of an Incentive Stock Option, the right to make a payment in
               the form of already owned shares may be authorized only at the
               time the Option is granted.

               The Committee, in its sole discretion, may at the time of grant
               or such later time as it determines, permit payment of the Option
               exercise price of a Non-Qualified Stock Option to be made in
               whole or in part in the form of Restricted Stock. If such payment
               is permitted, then such Restricted Stock (and any replacement
               shares relating thereto) shall remain (or be) restricted in
               accordance with the original terms of the Restricted Stock award
               in question, and any additional Stock received upon the exercise,
               shall be subject to the same forfeiture restrictions, unless
               otherwise determined by the Committee, in its sole discretion, at
               or after grant.

               If payment of the Option exercise price of a Non-Qualified Option
               is made in whole or in part in the form of unrestricted stock
               already owned by the Participant, the Corporation may require
               that the stock be owned by the Participant for a period of six
               months or longer so that such payment would not result in a
               pyramid exercise.

               No shares of Stock shall be issued until full payment therefor
               has been made. An Optionee shall generally have the rights to
               dividends or other rights of a shareholder with respect to shares
               subject to the Option when the Optionee has given written notice
               of exercise, has paid in full for such shares, and, if requested,
               has given the representation described in Section 11(a).

          (e)  Replacement Options. If an Option granted pursuant to the Plan
               may be exercised by an Optionee by means of a stock-for-stock
               swap method of exercise as provided in 5(d) above, then the
               Committee may, in its sole discretion, at the time of the
               original Option grant or at such subsequent time during the term
               of such Option as the Committee, in its sole discretion, shall
               deem appropriate, authorize the Participant to automatically
               receive a replacement Option pursuant to this part of the Plan.
               This replacement Option shall cover a number of shares determined
               by the Committee, but in no event more than the number of shares
               equal to the difference between the number of shares covered by
               the original Option exercised and the net shares received by the
               Participant from such exercise. The exercise price of the



                                       6



               replacement Option shall equal the then current Fair Market
               Value, and with a term not to exceed ten years.

               The Committee shall have the right, in its sole discretion and at
               any time, to discontinue the automatic grant of replacement
               Options if it determines the continuance of such grants to no
               longer be in the best interest of the Corporation.

          (f)  Non-transferability of Options. No Stock Option shall be
               transferable by the Optionee otherwise than by will or by the
               laws of descent and distribution, and all Stock Options shall be
               exercisable, during the Optionee's lifetime, only by the
               Optionee.

          (g)  Termination by Reason of Death. Subject to Section 5(j), if an
               Optionee's employment by the Corporation and any Subsidiary or
               affiliate terminates by reason of death, any Stock Option held by
               such Optionee may thereafter be exercised, to the extent then
               exercisable or on such accelerated basis as the Committee may
               determine at or after grant, by the legal representative of the
               estate or by the legatee of the Optionee under the will of the
               Optionee, for a period of one year (or such shorter period as the
               Committee may specify at grant) from the date of such death or
               until the expiration of the stated term of such Stock Option,
               whichever period is the shorter.

          (h)  Termination by Reason of Disability. Subject to Section 5(k), if
               an Optionee's employment by the Corporation and any Subsidiary or
               affiliate terminates by reason of Disability, any Stock Option
               held by such Optionee may thereafter be exercised by the
               Optionee, to the extent it was exercisable at the time of
               termination, or on such accelerated basis as the Committee may
               determine at or after grant, for a period of two years (or such
               shorter period as the Committee may specify at grant) from the
               date of such termination of employment or until the expiration of
               the stated term of such Stock Option, whichever period is the
               shorter; provided, however, that if the Optionee dies within such
               two-year period (or such shorter period as the Committee shall
               specify at grant), any unexercised Stock Option held by such
               Optionee shall, at the sole discretion of the Committee,
               thereafter be exercisable to the extent to which it was
               exercisable at the time of death for a period of twelve months
               from the date of such death or until the expiration of the stated
               term of such Stock Option, whichever period is the shorter. In
               the event of termination of employment by reason of Disability,
               if an Incentive Stock Option is exercised after the expiration of
               the exercise periods that apply for purposes of Section 422 of
               the Code, such Stock Option will thereafter be treated as a
               Non-Qualified Stock Option.

          (i)  Termination by Reason of Retirement. Subject to Section 5(j), if
               an Optionee's employment by the Corporation terminates by reason
               of Normal or Early Retirement, any Stock Option held by such
               Optionee may thereafter be exercised by the Optionee, to the
               extent it was exercisable at the time of such Retirement or on
               such accelerated basis as the Committee may determine at or after
               grant, for a period of two years (or such shorter period as
               Committee may specify at grant) from the date of such termination
               of employment or the expiration of the stated term of such Stock
               Option, whichever period is the shorter; provided, however, that,
               if the Optionee dies within such two-year period, any unexercised
               Stock Option held by such Optionee shall, at the sole discretion
               of the Committee, thereafter be exercisable, to the extent to
               which it was exercisable at the time of death, for a period of
               twelve months from the date of such death or until the expiration
               of the stated term of such Stock Option, whichever period is the
               shorter. In the event of termination of employment by reason of
               Retirement, if an Incentive Stock Option is exercised after the
               expiration of the exercise periods that apply 


                                       7



               for purposes of Section 422 of the Code, such Stock Option will
               thereafter be treated as a Non-Qualified Stock Option.

          (j)  Other Termination. Unless otherwise determined by the Committee
               at or after grant, if an Optionee's employment by the Corporation
               terminates for any reason other than death, Disability or Normal
               or Early Retirement, the Stock Option shall thereupon terminate,
               except that such Stock Option may be exercised for the lesser of
               three months or the balance of such Stock Option's term if the
               Optionee is involuntarily terminated by the Corporation without
               Cause.

          (k)  Incentive Stock Option Limitations. To the extent required for
               "Incentive Stock Option" status under Section 422 of the Code,
               the aggregate Fair Market Value (determined as of the time of
               grant) of the Stock with respect to which Incentive Stock Options
               granted after 1986 are exercisable for the first time by the
               Optionee during any calendar year under the Plan and/or any other
               Option plan of the Corporation (within the meaning of Section 424
               of the Code) after 1986 shall not exceed $100,000.

               To the extent (if any) permitted under Section 422 of the Code,
               if (i) a Participant's employment with the Corporation is
               terminated by reason of death, Disability or Retirement and (ii)
               the portion of any Incentive Stock Option that is otherwise
               exercisable during the post-termination period specified under
               Section 5(g), (h) or (i), applied without regard to this Section
               5(k), is greater than the portion of such Option that is
               exercisable as an "Incentive Stock Option" during such
               post-termination period under Section 422, such post-termination
               period shall automatically be extended (but not beyond the
               original Option term) to the extent necessary to permit the
               Optionee to exercise such Incentive Stock Option.

          (l)  Cash-out of Option; Settlement of Spread Value in Restricted
               Stock. On receipt of written notice to exercise, the Committee
               may, in its sole discretion, elect to cash out all or part of the
               portion of the Option(s) to be exercised by paying the Optionee
               an amount, in cash or stock, equal to the excess of the Fair
               Market Value of the Stock over the option price (the "Spread
               Value") on the effective date of such cash-out.

               In addition, if the Option agreement so provides at grant or is
               amended (with the Optionee's consent) after grant and prior to
               exercise to so provide, the Committee may require that all or
               part of the shares to be issued with respect to the Spread Value
               of an exercised Option take the form of Restricted Stock, which
               shall be valued on the date of exercise on the basis of the Fair
               Market Value of such Restricted Stock determined without regard
               to the forfeiture restrictions involved.

          (m)  Cashless Exercise. To the extent permitted under the applicable
               laws and regulations under Section 16 of the Securities Exchange
               Act of 1934, as amended, and the Rules promulgated thereunder,
               and with the consent of the Committee, the Corporation agrees to
               cooperate in a "cashless exercise" of an Option. The cashless
               exercise shall be effected by the Participant delivering to the
               Securities Broker instructions to sell a sufficient number of
               shares of Common Stock to cover the costs and expenses associated
               therewith.

SECTION 6.  Stock Appreciation Rights

          (a)  Grant and Exercise. Stock Appreciation Rights may be granted in
               conjunction with all or part of any Stock Option granted under
               the Plan. In the case of a Non-Qualified Stock Option,



                                       8



               such rights may be granted either at or after the time of the
               grant of such Stock Option. In the case of an Incentive Stock
               Option, such rights may be granted only at the time of the grant
               of such Stock Option.

               A Stock Appreciation Right or applicable portion thereof granted
               with respect to a given Stock Option shall terminate and no
               longer be exercisable upon the termination or exercise of the
               related Stock Option, except that, unless otherwise determined by
               the Committee, in its sole discretion, at the time of grant, a
               Stock Appreciation Right granted with respect to less than the
               full number of shares covered by a related Stock Option shall not
               be reduced until the number of shares covered by an exercise or
               termination of the related Stock Option exceeds the number of
               shares not covered by the Stock Appreciation Right.

               A Stock Appreciation Right may be exercised by an Optionee, in
               accordance with Section 6(b), by surrendering the applicable
               portion of the related Stock Option. Upon such exercise and
               surrender, the Optionee shall be entitled to receive an amount
               determined in the manner prescribed in Section 6(b). Stock
               Options which have been so surrendered, in whole or in part,
               shall no longer be exercisable to the extent the related Stock
               Appreciation Rights have been exercised.

          (b)  Terms and Conditions. Stock Appreciation Rights shall be subject
               to such terms and conditions, not inconsistent with the
               provisions of the Plan, as shall be determined from time to time
               by the Committee, including the following:

               (i)  Stock Appreciation Rights shall be exercisable only at such
                    time or times and to the extent that the Stock Options to
                    which they relate, if any, shall be exercisable in
                    accordance with the provisions of Section 5 and this Section
                    6 of the Plan; provided, however, that any Stock
                    Appreciation Right granted subsequent to the grant of the
                    related Stock Option shall not be exercisable during the
                    first six months of its term, except that this special
                    limitation shall not apply in the event of death or
                    Disability of the Optionee prior to the expiration of the
                    six-month period.

               (ii) Upon the exercise of a Stock Appreciation Right, an Optionee
                    shall be entitled to receive up to, but not more than, an
                    amount in cash and/or shares of Stock equal in value to the
                    excess of the Fair Market Value of one share of Stock over
                    the Option price per share or such lesser amount as
                    specified in the grant agreement, multiplied by the number
                    of shares in respect of which the Stock Appreciation Right
                    shall have been exercised, with the Committee having the
                    right to determine the form of payment.

              (iii) Stock Appreciation Rights shall be transferable only when
                    and to the extent that the underlying Stock Option would be
                    transferable under Section 5(f) of the Plan.

               (iv) Upon the exercise of a Stock Appreciation Right, the Stock
                    Option or part thereof to which such Stock Appreciation
                    Right is related shall be deemed to have been exercised for
                    the purpose of the limitation set forth in Section 3 of the
                    Plan on the number of shares of Stock to be issued under the
                    Plan, but only to the extent of the number of shares issued
                    under the Stock Appreciation Right at the time of exercise
                    based on the value of the Stock Appreciation Right at such
                    time.


                                       9



               (v)  A Stock Appreciation Right granted in connection with an
                    Incentive Stock Option may be exercised only if and when the
                    market price of the Stock subject to the Incentive Stock
                    Option exceeds the exercise price of such Stock Option.

SECTION 7.     Restricted Stock

          (a)  Administration. Shares of Restricted Stock may be issued either
               alone or in addition to other awards granted under the Plan. The
               Committee shall determine the Participants to whom, and the time
               or times at which, grants of Restricted Stock will be made, the
               number of shares to be awarded, the price (if any) to be paid by
               the recipient of Restricted Stock (subject to Section 7(b)), the
               time or times within which such awards may be subject to
               forfeiture, and all other conditions of the awards.

               The Committee may condition the grant of Restricted Stock upon
               the attainment of specified performance goals or such other
               factors as the Committee may determine, in its sole discretion.

               The provisions of Restricted Stock awards need not be the same
               with respect to each recipient.

          (b)  Awards and Certificates. The prospective recipient of a
               Restricted Stock award shall not have any rights with respect to
               such award, unless and until such recipient has executed an
               agreement evidencing the award and has delivered a fully executed
               copy thereof to the Corporation, and has otherwise complied with
               the applicable terms and conditions of such award.

               (i)  The purchase price for shares of Restricted Stock shall not
                    be less than what prevailing law may require.

               (ii) Awards of Restricted Stock must be accepted within a period
                    of 60 days (or such shorter period as the Committee may
                    specify at grant) after the award date, by executing a
                    Restricted Stock Award Agreement and paying whatever price
                    (if any) is required under Section 7(b)(i).

              (iii) Each Participant receiving a Restricted Stock award shall
                    be issued a stock certificate in respect of such shares of
                    Restricted Stock. Such certificate shall be registered in
                    the name of such Participant, and shall bear an appropriate
                    legend referring to the terms, conditions, and restrictions
                    applicable to such award, substantially in the following
                    form:

                     "The transferability of this certificate and the shares of
                     stock represented hereby are subject to the terms and
                     conditions (including forfeiture) of the Pegasystems Inc.
                     1994 Long-Term Incentive Plan and an Agreement entered into
                     between the registered owner and Pegasystems Inc. Copies of
                     such Plan and or Agreement are on file in the offices of
                     Pegasystems Inc. 101 Main Street, Cambridge, MA 02142-1590
                     Attention: Vice President, Corporate Services."

               (iv) The Committee shall require that the stock certificates
                    evidencing such shares be held in custody by the Corporation
                    until the restrictions thereon shall have lapsed, and that,
                    as a condition of any Restricted Stock award, the
                    Participant shall have delivered a stock power, endorsed in
                    blank, relating to the Stock covered by such award.


                                       10



          (c)  Restrictions and Conditions. The shares of Restricted Stock
               awarded pursuant to this Section 7 shall be subject to the
               following restrictions and conditions:

               (i)  Subject to the provisions of this Plan and the award
                    agreement, during a period set by the Committee commencing
                    with the date of such award (the "Restriction Period"), the
                    Participant shall not be permitted to sell, transfer,
                    pledge, assign or otherwise encumber shares of Restricted
                    Stock awarded under the Plan. Within these limits, the
                    Committee, in its sole discretion, may provide for the lapse
                    of such restrictions in installments and may accelerate or
                    waive such restrictions in whole or in part, based on
                    service, performance and/or such other factors or criteria
                    as the Committee may determine, in its sole discretion.

               (ii) Except as provided in this paragraph (ii) and Section
                    7(c)(i), the Participant shall have, with respect to the
                    shares of Restricted Stock, all of the rights of a
                    shareholder of the Corporation, including the right to vote
                    the shares, and the right to receive any cash dividends. The
                    Committee, in its sole discretion, as determined at the time
                    of award, may permit or require the payment of cash
                    dividends to be deferred and, if the Committee so
                    determines, reinvested in additional Restricted Stock to the
                    extent shares are available under Section 3.

              (iii) Subject to the applicable provisions of the award agreement
                    and this Section 7, upon termination of a Participant's
                    employment with the Corporation for any reason during the
                    Restriction Period, all shares still subject to restriction
                    shall be forfeited by the Participant.

               (iv) In the event of hardship or other special circumstances of a
                    Participant whose employment with the Corporation is
                    involuntarily terminated (other than for Cause), the
                    Committee may, in its sole discretion, waive in whole or in
                    part any or all remaining restrictions with respect to such
                    Participant's shares of Restricted Stock, based on such
                    factors as the Committee may deem appropriate.

               (v)  If and when the Restriction Period expires without a prior
                    forfeiture of the Restricted Stock subject to such
                    Restriction Period, the certificates for such shares shall
                    be delivered to the Participant promptly.

SECTION 8.     Long Term Performance Awards

          (a)  Awards and Administration. Long Term Performance Awards may be
               awarded either alone or in addition to other awards granted under
               the Plan. The Committee shall determine the nature, length and
               starting date of the performance period (the "Performance
               Period") for each Long Term Performance Award, which shall be at
               least two years, and shall determine the performance objectives
               to be used in valuing Long Term Performance Awards and
               determining the extent to which such Long Term Performance Awards
               have been earned. Performance objectives may vary from
               Participant to Participant and between groups of Participants and
               shall be based upon such Corporation, business unit and/or
               individual performance factors and criteria as the Committee may
               deem appropriate, including, but not limited to, earnings per
               share or return on equity. Performance Periods may overlap and
               Participants may participate simultaneously with respect to Long
               Term Performance Awards 


                                       11



               that are subject to different Performance Periods and/or
               different performance factors and criteria.

               At the beginning of each Performance Period, the Committee shall
               determine for each Long Term Performance Award subject to such
               Performance Period the range of dollar values or number of shares
               of Stock to be awarded to the Participant at the end of the
               Performance Period if and to the extent that the relevant
               measure(s) of performance for such Long Term Performance Award is
               (are) met. Such dollar values or number of shares of Stock may be
               fixed or may vary in accordance with such performance and/or
               other criteria as may be specified by the Committee, in its sole
               discretion.

          (b)  Adjustment of Awards. In the event of special or unusual events
               or circumstances affecting the application of one or more
               performance objectives to a Long Term Performance Award, the
               Committee may revise the performance objectives and/or underlying
               factors and criteria applicable to the Long Term Performance
               Awards affected, to the extent deemed appropriate by the
               Committee, in its sole discretion, to avoid unintended windfalls
               or hardship.

          (c)  Termination of Employment. Unless otherwise provided in the
               applicable award agreement(s), if a Participant terminates
               employment with the Corporation during a Performance Period
               because of death, Disability or Retirement, such Participant
               shall be entitled to a payment with respect to each outstanding
               Long Term Performance Award at the end of the applicable
               Performance Period:

               (i)  based, to the extent relevant under the terms of the award,
                    upon the Participant's performance for the portion of such
                    Performance Period ending on the date of termination and the
                    performance of the applicable business unit(s) for the
                    entire Performance Period, and

               (ii) prorated where deemed appropriate by the Committee, for the
                    portion of the Performance Period during which the
                    Participant was employed by the Corporation, all as
                    determined by the Committee, in its sole discretion.
                    However, the Committee may provide for an earlier payment in
                    settlement of such award in such amount and under such terms
                    and conditions as the Committee deems appropriate.

                    If a Participant terminates employment with the Corporation
                    during a Performance Period for any other reason, then such
                    Participant shall not be entitled to any payment with
                    respect to the Long Term Performance Awards subject to such
                    Performance Period, unless the Committee shall otherwise
                    determine, in its sole discretion.

          (d)  Form of Payment. The earned portion of a Long Term Performance
               Award may be paid currently or on a deferred basis with such
               interest or earnings equivalent as may be determined by the
               Committee, in its sole discretion. Payment shall be made in the
               form of cash or whole shares of Stock, including Restricted
               Stock, either in a lump sum payment or in annual installments
               commencing as soon as practicable after the end of the relevant
               Performance Period, all as the Committee shall determine at or
               after grant. If and to the extent a Long Term Performance Award
               is payable in Stock and the full amount of such value is not paid
               in Stock, then the shares of Stock representing the portion of
               the value of the Long Term Performance Award not paid in Stock
               shall again become available for award under the Plan.


                                       12





SECTION 9.     Amendments and Termination

         The Board may amend, alter, or discontinue the Plan at any time and
from time to time, but no amendment, alteration, or discontinuation shall be
made which would impair the rights of an Optionee or Participant with respect to
a Stock Option, Stock Appreciation Right, Restricted Stock or Long Term
Performance Award which has been granted under the Plan, without the Optionee's
or Participant's consent, or which, without the approval of the Corporation's
stockholders obtained within 12 months before or after the Board adopts a
resolution authorizing any of the following amendments, would:

          (a)  except as expressly provided in this Plan, increase the total
               number of shares reserved for the purpose of the Plan;

          (b)  decrease the Option price of any Stock Option to less than 50% of
               the Fair Market Value on the date of grant;

          (c)  change the employees or class of employees eligible to
               participate in the Plan; or

          (d)  extend the maximum Option period under Section 5(b) of the Plan.

         The Committee may amend the terms of any Stock Option or other award
theretofore granted, prospectively or retroactively, but, subject to Section 3
above, no such amendment shall impair the rights of any holder without the
holder's consent. The Committee may also substitute new Stock Options for
previously granted Stock Options, including previously granted Stock Options
having higher Option prices.

         Subject to the above provisions, the Committee shall have broad
authority to amend the Plan to take into account changes in applicable tax laws
and accounting rules, as well as other developments.

SECTION 10.  Unfunded Status of Plan

         The Plan is intended to constitute an "unfunded" plan for incentive and
deferred compensation. With respect to any payments not yet made to a
Participant or Optionee by the Corporation, nothing contained herein shall give
any such Participant or Optionee any rights that are greater than those of a
general creditor of the Corporation. In its sole discretion, the Board may
authorize the creation of trusts or other arrangements to meet the obligations
created under the Plan to deliver Stock or payments in lieu of or with respect
to awards hereunder, provided, however, that, unless the Board otherwise
determines with the consent of the affected Participant, the existence of such
trusts or other arrangements is consistent with the "unfunded" status of the
Plan.

SECTION 11.  General Provisions

          (a)  The Committee may require each person purchasing shares pursuant
               to a Stock Option under the Plan to represent to and agree with
               the Corporation in writing that the Optionee or Participant is
               acquiring the shares without a view to distribution thereof. The
               certificates for such shares may include any legend which the
               Committee deems appropriate to reflect any restrictions on
               transfer.

               All certificates for shares of Stock or other securities
               delivered under the Plan shall be subject to such stock-transfer
               orders and other restrictions as the Committee may deem advisable
               under the rules, regulations, and other requirements of the
               Exchange Act, any stock exchange 


                                       13



               upon which the Stock is then listed, and any applicable federal
               or state securities law, and the Committee may cause a legend or
               legends to be put on any such certificates to make appropriate
               reference to such restrictions.

          (b)  Nothing contained in this Plan shall prevent the Board of
               Directors from adopting other or additional compensation
               arrangements, subject to stockholder approval if such approval is
               required; and such arrangements may be either generally
               applicable or applicable only in specific cases.

          (c)  The adoption of the Plan shall not confer upon any employee of
               the Corporation any right to continued employment with the
               Corporation, as the case may be, nor shall it interfere in any
               way with the right of the Corporation to terminate the employment
               of any of its employees at any time.

          (d)  No later than the date as of which an amount first becomes
               includible in the gross income of the Participant for Federal
               income tax purposes with respect to any award under the Plan, the
               Participant shall pay to the Corporation, or make arrangements
               satisfactory to the Committee regarding the payment of, any
               Federal, state, or local taxes of any kind required by law to be
               withheld with respect to such amount. Unless otherwise determined
               by the Committee, the minimum required withholding obligations
               may be settled with Stock, including Stock that is part of the
               award that gives rise to the withholding requirement. The
               obligations of the Corporation under the Plan shall be
               conditional on such payment or arrangements and the Corporation
               shall, to the extent permitted by law, have the right to deduct
               any such taxes from any payment of any kind otherwise due to the
               Participant.

          (e)  At the time of grant, the Committee may provide in connection
               with any grant made under this Plan that the shares of Stock
               received as a result of such grant shall be subject to a right of
               first refusal, pursuant to which the Participant shall be
               required to offer to the Corporation any shares that the
               Participant wishes to sell, with the price being the then Fair
               Market Value of the Stock, subject to such other terms and
               conditions as the Committee may specify at the time of grant.

          (f)  Shares may be subject to a repurchase right by the Corporation
               which the Corporation shall have the right to exercise from time
               to time as may be set forth in a grant agreement for an award
               granted under this Plan.

          (g)  The reinvestment of dividends in additional Restricted Stock (or
               in other types of Plan awards) at the time of any dividend
               payment shall only be permissible if sufficient shares of Stock
               are available under Section 3 for such reinvestment (taking into
               account then outstanding Stock Options and other Plan awards).

          (h)  The Committee shall establish such procedures as it deems
               appropriate for a Participant to designate a beneficiary to whom
               any amounts payable in the event of the Participant's death are
               to be paid.

          (i)  The Plan and all awards made and actions taken thereunder shall
               be governed by and construed in accordance with the laws of the
               Commonwealth of Massachusetts.


                                       14





SECTION 12.  Effective Date of Plan

         The Plan shall be effective on the date it is approved by a vote of the
holders of a majority of the total outstanding Stock.

SECTION 13.  Term of Plan

         No Stock Option, Stock Appreciation Right, Restricted Stock or Long
Term Performance Award shall be granted pursuant to the Plan on or after the
tenth anniversary of the date of stockholder approval, but awards granted prior
to such tenth anniversary may extend beyond that date.


                                       15