Document:

<PAGE>   1
                                                                     EXHIBIT 4.2

                              XPEDIOR INCORPORATED

                          EMPLOYEE STOCK PURCHASE PLAN

     1. PURPOSE. The XPEDIOR INCORPORATED EMPLOYEE STOCK PURCHASE PLAN (the
"Plan") is intended to provide an incentive for employees of XPEDIOR
INCORPORATED, a Delaware corporation (the "Company") and its participating
subsidiaries (as defined in Paragraph 4) to acquire or increase a proprietary
interest in the Company through the purchase of shares of the Company's common
stock, and to encourage eligible employees to remain in the employ of the
Company and its participating subsidiaries. The Plan is intended to constitute
an "employee stock purchase plan" within the meaning of Section 423 (b) of the
Internal Revenue Code of 1986, as amended (the "Code"). The provisions of the
Plan shall, accordingly, be construed so as to extend and limit participation in
the Plan in a manner consistent with the requirements of that section of the
Code.

     2.   DEFINITIONS AND CONSTRUCTION.

          2.1 DEFINITIONS. Where the following words and phrases are used in the
     Plan, they shall have the respective meanings set forth below, unless the
     context clearly indicates to the contrary:

     (i)   "BOARD" means the Board of Directors of the Company.

     (ii)  "CODE" means the Internal Revenue Code of 1986, as amended.

     (iii) "COMMITTEE" means a committee appointed from time to time by the
           Board to administer the Plan as provided in Paragraph 3 and
           constituted so as to permit the Plan to comply with Rule 16b-3, as
           currently in effect or as hereafter modified, promulgated under the
           Securities Exchange Act of 1934, as amended.

     (iv)  "COMPANY" means Xpedior Incorporated, a Delaware corporation.

     (v)   "DATE OF EXERCISE" means the last day of each Option Period.

     (vi)  "DATE OF GRANT" means August 1, 2000, and, thereafter, the first day
           of each successive October, January, April and July.

     (vii) "ELIGIBLE COMPENSATION" means regular straight-time earnings or base
           salary, plus overtime pay, incentive compensation, bonuses, and
           commissions.

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

     (ix)  "OPTION PERIOD" means the three-month period beginning on each Date
           of Grant.

     (x)   "OPTION PRICE" shall have the meaning assigned to such term in
           Paragraph 8.2.

                                       -1-

<PAGE>   2

     (xi)  "PARTICIPATING COMPANY" means any present or future parent or
           subsidiary corporation of the Company that participates in the Plan
           pursuant to Paragraph 4.

     (xii) "PLAN" means this Xpedior Incorporated Employee Stock Purchase Plan,
           as amended from time to time.

     (xiii)"RESTRICTION PERIOD" means the period of time, if any, during which
           shares of Stock acquired by a participant in the Plan may not be
           sold, assigned, pledged, exchanged, hypothecated, or otherwise
           transferred, encumbered, or disposed of by such participant as
           provided in Paragraph 8.4.

     (xiv) "STOCK" means the shares of the Company's Common Stock, par value
           $.01 per share.

          2.2 NUMBER AND GENDER. Wherever appropriate herein, words used in the
     singular shall be considered to include the plural, and words used in the
     plural shall be considered to include the singular. The masculine gender,
     where appearing in the Plan, shall be deemed to include the feminine
     gender.

          2.3 HEADINGS. The headings and subheadings in the Plan are included
     solely for convenience, and, if there is any conflict between such headings
     or subheadings and the text of the Plan, the text shall control.

          2.4 SEVERABILITY. If any provision of the Plan shall be held illegal
     or invalid for any reason, said illegality or invalidity shall not affect
     the remaining provisions hereof; instead, each provision shall be fully
     severable, and the Plan shall be construed and enforced as if said illegal
     or invalid provision had never been included herein.

          2.5 GOVERNING LAW. All provisions of the Plan shall be construed in
     accordance with the laws of the state of Delaware, except to the extent
     preempted by federal law.

          2.6 SECTION 423 OF THE CODE. The Plan is intended to qualify as an
     "employee stock purchase plan" under Section 423 of the Code. The
     provisions of the Plan shall be construed in a manner consistent with the
     requirements of that section of the Code.

     3. ADMINISTRATION OF THE PLAN. The Plan shall be administered by the
Committee, the members of which shall be appointed from time to time by the
Board. Each member of the Committee shall serve for a term commencing on a date
specified by the Board and continuing until he dies, resigns, or is removed from
office by the Board. Subject to the provisions of the Plan, the Committee shall
interpret the Plan and all options granted under the Plan, make such rules as it
deems necessary for the proper administration of the Plan, and make all other
determinations necessary or advisable for the administration of the Plan. In
addition, the Committee shall correct any defect or supply any omission or
reconcile any inconsistency in the Plan, or in any option granted under the
Plan, in the manner and to the extent that the Committee deems desirable to
carry the Plan or any option into effect. The Committee shall, in its sole
discretion, make such decisions or determinations and take such actions, and all
such decisions, determinations, and actions taken or made by the Committee
pursuant to this and the other Paragraphs of the Plan shall be conclusive on all
parties. The Committee shall not be liable for any

                                       -2-

<PAGE>   3

decision, determination, or action taken in good faith in connection with the
administration of the Plan. The Committee shall have the authority to delegate
routine day-to-day administration of the Plan to such officers and employees of
the Company as the Committee deems appropriate.

     4. PARTICIPATING COMPANIES. The Committee may from time to time designate
any present or future parent or subsidiary corporation of the Company that is
eligible by law to participate in the Plan as a Participating Company. The terms
of the Plan may be modified as applied to a Participating Company only to the
extent permitted under Section 423 of the Code. Transfer of employment among the
Company and Participating Companies (and among any other parent or subsidiary
corporation of the Company) shall not be considered a termination of employment
hereunder. Any Participating Company may, by appropriate action of its Board of
Directors, terminate its participation in the Plan. Moreover, the Committee may,
in its discretion, terminate a Participating Company's Plan participation at any
time.

     5. ELIGIBILITY TO PARTICIPATE. Subject to the provisions hereof, all
employees of the Company and the Participating Companies who are employed by the
Company or any Participating Company as of a Date of Grant shall be eligible to
participate in the Plan. The preceding notwithstanding, no option shall be
granted to an employee if such employee, immediately after the option is
granted, owns stock possessing five percent (5%) or more of the total combined
voting power or value of all classes of stock of the Company or of its parent or
subsidiary corporations (within the meaning of Sections 423(b)(3) and 424(d) of
the Code).

     6. STOCK SUBJECT TO THE PLAN. Subject to the provisions of Paragraph 13
hereof, the aggregate number of shares which may be sold pursuant to options
granted under the Plan shall not exceed 2,000,000 shares of the authorized
Stock, which shares may be unissued shares or reacquired shares, including
shares bought on the market or otherwise for purposes of the Plan. Should any
option granted under the Plan expire or terminate prior to its exercise in full,
the shares theretofore subject to such option may again be subject to an option
granted under the Plan. Any shares that are not subject to outstanding options
upon the termination of the Plan shall cease to be subject to the Plan.

     7.   GRANT OF OPTIONS.

          7.1 IN GENERAL. Following the effective date of the Plan and
     continuing while the Plan remains in force, the Company shall offer options
     under the Plan to purchase shares of Stock to all eligible employees who
     elect to participate in the Plan. Except as otherwise determined by the
     Committee, these options shall be granted on each Date of Grant. Except as
     provided in Paragraph 14, the term of each option shall be for three
     months, which shall begin on the Date of Grant and end on the last day of
     such three-month period. Subject to Subparagraph 7.4, the number of shares
     of Stock subject to an option for a participant shall be equal to the
     quotient of (i) the aggregate payroll deductions withheld on behalf of such
     participant during the Option Period in accordance with Subparagraph 7.2,
     divided by (ii) the Option Price of the Stock applicable to the Option
     Period, including fractions.

          7.2 ELECTION TO PARTICIPATE; PAYROLL DEDUCTION AUTHORIZATION. Except
     as provided in Subparagraph 7.6, each eligible employee may elect to
     participate in the Plan by delivering to the Company, within the time
     period prescribed by the Committee, a written payroll deduction
     authorization in a form prepared by the Company, whereby such employee
     gives notice of his election to participate in the Plan as of the next
     following Date of Grant, and whereby such

                                       -3-

<PAGE>   4

     employee designates an integral percentage of his Eligible Compensation to
     be deducted from his compensation for each pay period and paid into the
     Plan for his account. The designated percentage may not be less than 1% nor
     exceed 15% of Eligible Compensation. An eligible employee may participate
     in the Plan only by means of payroll deduction.

          7.3 CHANGES IN PAYROLL AUTHORIZATION. The payroll deduction
     authorization referred to in Subparagraph 7.2 may not be changed during the
     Option Period. However, a participant may withdraw from the Plan as
     provided in Paragraph 9.

          7.4 $25,000 LIMITATION. No employee shall be granted any option under
     the Plan that permits his rights to purchase Stock under the Plan and under
     all other employee stock purchase plans of the Company and its parent and
     subsidiary corporations to accrue at a rate which exceeds $25,000 of fair
     market value of Stock (determined at the time such option is granted) for
     each calendar year in which such option is outstanding at any time (within
     the meaning of Section 423(b)(8) of the Code). Any payroll deductions in
     excess of the amount specified in the foregoing sentence shall be returned
     to the participant as soon as administratively feasible after the next
     following Date of Exercise.

          7.5 LEAVES OF ABSENCE. During a paid leave of absence approved by the
     Company and meeting the requirements of Treasury Regulation ss.
     1.421-7(h)(2), a participant's elected payroll deductions shall continue. A
     participant may not contribute to the Plan during an unpaid leave of
     absence. If a participant takes an unpaid leave of absence that is approved
     by the Company and meets the requirements of Treasury Regulation ss.
     1.421-7(h)(2), then such participant's payroll deductions for such Option
     Period that were made prior to such leave may remain in the Plan and be
     used to purchase Stock under the Plan on the Date of Exercise relating to
     such Option Period. If a participant takes a leave of absence that is not
     described in the first or third sentence of this Subparagraph 7.5, then he
     shall be considered to have withdrawn from the Plan pursuant to the
     provisions of Paragraph 9 hereof. Furthermore, notwithstanding the
     preceding provisions of this Subparagraph 7.5, if a participant takes a
     leave of absence that is described in the first or third sentence of this
     Subparagraph 7.5 and such leave of absence exceeds 30 days, then he shall
     be considered to have withdrawn from the Plan pursuant to the provisions of
     Paragraph 9 hereof on the 31st day of such leave of absence.

          7.6 CONTINUING ELECTION. Subject to the limitation set forth in
     Subparagraph 7.4, a participant (i) who has elected to participate in the
     Plan pursuant to Subparagraph 7.2 as of a Date of Grant and (ii) who takes
     no action to change or revoke such election as of the next following Date
     of Grant and/or as of any subsequent Date of Grant prior to any such
     respective Date of Grant shall be deemed to have made the same election,
     including the same attendant payroll deduction authorization, for such next
     following and/or subsequent Date(s) of Grant as was in effect immediately
     prior to such respective Date of Grant. Payroll deductions that are limited
     by Subparagraph 7.4 shall recommence at the rate provided in such
     participant's payroll deduction authorization at the beginning of the first
     Option Period that is scheduled to end in the following calendar year,
     unless the participant changes the amount of his payroll deduction
     authorization pursuant to Paragraph 7, withdraws from the Plan as provided
     in Paragraph 9, or is terminated from participation in the Plan as provided
     in Paragraph 10.

     8.   EXERCISE OF OPTIONS.

                                       -4-

<PAGE>   5

          8.1 GENERAL STATEMENT. Subject to the limitation set forth in
     Subparagraph 7.4, each participant in the Plan automatically, and without
     any act on his part, shall be deemed to have exercised his option on each
     Date of Exercise to the extent of his unused payroll deductions under the
     Plan and to the extent the issuance of Stock to such participant upon such
     exercise is lawful.

          8.2 "OPTION PRICE" DEFINED. The term "Option Price" shall mean the per
     share price of Stock to be paid by each participant on each exercise of his
     option, which price shall be equal to 85% of the lesser of (i) the fair
     market value of the Stock on the Date of Exercise or (ii) the fair market
     value of the Stock on the Date of Grant. For all purposes under the Plan,
     the fair market value of a share of Stock on a particular date shall be
     equal to the closing price of the Stock on the NASDAQ National Market on
     that date (or, if no shares of Stock have been traded on that date, on the
     next regular business date on which shares of the Stock are so traded).

          8.3 DELIVERY OF SHARE CERTIFICATES. As soon as practicable after each
     Date of Exercise, the Company shall deliver to a custodian selected by the
     Committee one or more certificates representing (or shall otherwise cause
     to be credited to the account of such custodian) the total number of whole
     shares of Stock respecting options exercised on such Date of Exercise in
     the aggregate (for both whole and fractional shares) of all of the
     participating employees hereunder. Any remaining amount representing a
     fractional share shall not be certificated (or otherwise so credited), and
     such remaining amount shall be paid in cash to the custodian. Such
     custodian shall keep accurate records of the beneficial interests of each
     participating employee in such shares by means of participant accounts
     under the Plan, and shall provide each eligible employee with quarterly or
     such other periodic statements with respect thereto as may be directed by
     the Committee. If the Company is required to obtain from any U.S.
     commission or agency authority to issue any such shares, the Company shall
     seek to obtain such authority. Inability of the Company to obtain from any
     commission or agency (whether U.S. or foreign) authority, which counsel for
     the Company deems necessary for the lawful issuance of any such shares,
     shall relieve the Company from liability to any participant in the Plan
     except to return to him the amount of his payroll deductions under the Plan
     that would have otherwise been used upon exercise of the relevant option.

          8.4 RESTRICTIONS ON TRANSFER. The Committee may from time to time
     specify with respect to a particular grant of options a Restriction Period
     that shall apply to the shares of Stock acquired pursuant to such options.
     In the event the Committee has specified that a Restriction Period will
     apply with respect to a particular grant of options, unless another
     Restriction Period is specified by the Committee, the Restriction Period
     applicable to shares of Stock acquired pursuant to such grant shall be a
     period of six months after the Date of Exercise of the options pursuant to
     which such shares were acquired. Except as hereinafter provided, during the
     Restriction Period applicable to shares of Stock acquired under the Plan,
     such shares may not be sold, assigned, pledged, exchanged, hypothecated, or
     otherwise transferred, encumbered, or disposed of by the participant who
     has purchased such shares; provided, however, that such Restriction shall
     not apply to the transfer, exchange, or conversion of such shares of Stock
     pursuant to a merger, consolidation, or other plan of reorganization of the
     Company, but the stock, securities, or other property (other than cash)
     received upon any such transfer, exchange or conversion shall also become
     subject to the same transfer restrictions applicable to the original shares
     of Stock, and shall be held by the custodian, pursuant to the provisions
     hereof. Upon the

                                       -5-

<PAGE>   6

     expiration of such Restriction Period, if any, the transfer restrictions
     set forth in this Subparagraph 8.4 shall cease to apply and the optionee
     may, pursuant to procedures established by the Committee and the custodian,
     direct the sale or distribution of some or all of the whole shares of Stock
     in his Company stock account that are not then subject to transfer
     restrictions and, in the event of a sale, request payment of the net
     proceeds from such sale. Further, upon the termination of the participant's
     employment with the Company and its parent or subsidiary corporations for
     any reason whatsoever, the transfer restrictions set forth in this
     Subparagraph 8.4 shall cease to apply and the custodian shall, upon the
     request of such participant, deliver to such participant a certificate
     issued in his name representing (or otherwise credit to an account of such
     participant) the aggregate whole number of shares of Stock in his Company
     stock account under the Plan. At the time of distribution of such shares,
     any fractional share in such Company stock account shall be converted to
     cash based on the fair market value of the Stock on the date of
     distribution and such cash shall be paid to the participant. The Committee
     may cause the Stock issued in connection with the exercise of options under
     the Plan to bear such legends or other appropriate restrictions, and the
     Committee may take such other actions, as it deems appropriate in order to
     reflect the transfer restrictions set forth in this Subparagraph 8.4 and to
     assure compliance with applicable laws.

     9.   WITHDRAWAL FROM THE PLAN.

          9.1 GENERAL STATEMENT. Any participant may withdraw in whole from the
     Plan at any time prior to the Date of Exercise relating to a particular
     Option Period. Partial withdrawals shall not be permitted. A participant
     who wishes to withdraw from the Plan must timely deliver to the Company a
     notice of withdrawal in a form prepared by the Company. The Company,
     promptly following the time when the notice of withdrawal is delivered,
     shall refund to the participant the amount of his payroll deductions under
     the Plan which have not yet been otherwise returned to him or used upon
     exercise of options, and thereupon, automatically and without any further
     act on his part, his payroll deduction authorization and his interest in
     unexercised options under the Plan shall terminate.

          9.2 ELIGIBILITY FOLLOWING WITHDRAWAL. A participant who withdraws from
     the Plan shall be eligible to participate again in the Plan upon expiration
     of the Option Period during which he withdrew (provided that he is
     otherwise eligible to participate in the Plan at such time in accordance
     with Paragraph 5 hereof).

     10.  TERMINATION OF EMPLOYMENT AND OF PARTICIPATION.

          10.1 GENERAL STATEMENT. Except as provided in Subparagraph 10.2, if
     the employment of a participant terminates for any reason whatsoever, then
     his participation in the Plan automatically, and without any act on his
     part, shall terminate as of the date of the termination of his employment.
     The Company shall promptly refund to him the amount of his payroll
     deductions under the Plan which have not yet been otherwise returned to him
     or used upon exercise of options, and thereupon his interest in unexercised
     options under the Plan shall terminate.

          10.2 TERMINATION BY RETIREMENT, DEATH, OR DISABILITY. If the
     employment of a participant terminates after such participant has attained
     age 65 or due to such participant's death

                                       -6-

<PAGE>   7

     or permanent and total disability (within the meaning of Section 22(e)(3)
     of the Code), then such participant, or such participant's personal
     representative, as applicable, shall have the right to elect either to:

               (i) Withdraw all of such participant's accumulated unused payroll
          deductions under the Plan; or

               (ii) Exercise such participant's option for the purchase of Stock
          on the last day of the Option Period during which termination of
          employment occurs for the purchase of the number of full shares of
          Stock that the accumulated payroll deductions at the date of such
          participant's termination of employment will purchase at the
          applicable Option Price (subject to Subparagraph 7.4), with any excess
          payroll deduction amounts to be returned to such participant or such
          personal representative.

The participant or, if applicable, such personal representative, must make such
election by giving written notice to the Committee at such time and in such
manner as the Committee prescribes. In the event that no such written notice of
election is timely received by the Committee, the participant or personal
representative will automatically be deemed to have elected as set forth in
Clause (ii) above, and promptly after the exercise so described in Clause (ii)
above, all shares of Stock in such participant's account under the Plan shall be
distributed to the participant or such personal representative.

     11. RESTRICTION UPON ASSIGNMENT OF OPTION. An option granted under the Plan
shall not be transferable otherwise than by will or the laws of descent and
distribution. Each option shall be exercisable, during his lifetime, only by the
employee to whom such option is granted. The Company shall not recognize, and
shall be under no duty to recognize, any assignment or purported assignment by
an employee of his option or of any rights under his option or under the Plan.

     12. NO RIGHTS OF STOCKHOLDER UNTIL EXERCISE OF OPTION. With respect to
shares of Stock subject to an option, an optionee shall not be deemed to be a
stockholder, and he shall not have any of the rights or privileges of a
stockholder, until such option has been exercised. With respect to an
individual's Stock held by the custodian pursuant to Subparagraph 8.4, the
custodian shall, as soon as practicable, pay the individual any cash dividends
attributable thereto and shall, in accordance with procedures adopted by the
custodian, facilitate the individual's voting rights attributable thereto.

     13. ADJUSTMENTS. Whenever any change is made in the Stock, by reason of a
stock dividend or by reason of subdivision, stock split, reverse stock split,
recapitalization, reorganization, combination, reclassification of shares, or
other similar change, appropriate action will be taken by the Committee to
adjust accordingly the number of shares subject to the Plan, the maximum number
of shares that may be subject to any option, and the number and Option Price of
shares subject to options outstanding under the Plan.

     14. MERGER, CONSOLIDATION, OR LIQUIDATION OF COMPANY. If the Company shall
not be the surviving corporation in any merger or consolidation (or survives
only as a subsidiary of another entity), or if the Company is to be dissolved or
liquidated, then, unless a surviving corporation assumes or substitutes new
options (within the meaning of Section 424(a) of the Code) for all options then
outstanding, (i) the Date of Exercise for all options then outstanding shall be
accelerated to a date fixed by the Committee prior to the effective date of such
merger or consolidation or such dissolution or

                                       -7-

<PAGE>   8

liquidation and (ii) upon such effective date, any unexercised options shall
expire, and the Company promptly shall refund to each participant the amount of
such participant's payroll deductions under the Plan that have not yet been
returned to him or used upon exercise of options.

     15.  USE OF FUNDS; NO INTEREST PAID. All funds received or held by the
Company under the Plan shall be included in the general funds of the Company,
free of any trust or other restriction, and may be used for any corporate
purpose. No interest shall be paid to any participant.

     16. EFFECTIVE DATE AND TERM OF THE PLAN. The Plan shall be effective on
August 1, 2000, provided the Plan is approved by the stockholders of the Company
within twelve months of such date. Notwithstanding any provision in the Plan, no
option granted under the Plan shall be exercisable prior to such stockholder
approval, and, if the stockholders of the Company do not approve the Plan by the
Date of Exercise of the first option granted hereunder, then the Plan will have
no force and effect. Except with respect to options then outstanding, if not
sooner terminated under the provisions of Paragraph 17, the Plan shall terminate
upon, and no further payroll deductions shall be made and no further options
shall be granted after July 31, 2010.

     17. AMENDMENT OR TERMINATION OF THE PLAN. The Board in its discretion may
terminate the Plan at any time with respect to any Stock for which options have
not theretofore been granted. The Board and the Committee shall each have the
right to alter or amend the Plan or any part thereof from time to time;
provided, however, that no change in any option theretofore granted may be made
that would impair the rights of the optionee without the consent of such
optionee.

     18. SECURITIES LAWS. The Company shall not be obligated to issue any Stock
pursuant to any option granted under the Plan at any time when the offer,
issuance, or sale of shares covered by such option has not been registered under
the Securities Act of 1933, as amended, or does not comply with such other
state, federal, or foreign laws, rules, or regulations, or the requirements of
any stock exchange upon which the Stock may then be listed, as the Company or
the Committee deems applicable and, in the opinion of legal counsel for the
Company, there is no exemption from the requirements of such laws, rules,
regulations, or requirements available for the offer, issuance, and sale of such
shares. Furthermore, all Stock acquired pursuant to the Plan shall be subject to
the Company's policies concerning compliance with securities laws and
regulations, as such policies may be amended from time to time. The terms and
conditions of options granted hereunder to, and the purchase of shares by,
persons subject to Section 16 of the Exchange Act shall comply with any
applicable provisions of Rule 16b-3 promulgated thereunder. As to such persons,
the Plan shall be deemed to contain, and such options shall contain, and the
shares issued upon exercise thereof shall be subject to, such additional
conditions and restrictions as may be required from time to time by Rule 16b-3
to qualify for the maximum exemption from Section 16 of the Exchange Act with
respect to Plan transactions.

     19. NO RESTRICTION ON CORPORATE ACTION. Nothing contained in the Plan shall
be construed to prevent the Company or any subsidiary from taking any corporate
action that is deemed by the Company or such subsidiary to be appropriate or in
its best interest, whether or not such action would have an adverse effect on
the Plan or any option granted under the Plan. No employee, beneficiary, or
other person shall have any claim against the Company or any subsidiary as a
result of any such action.

     20.  MISCELLANEOUS PROVISIONS.

                                       -8-

<PAGE>   9

     20.1 PARENT AND SUBSIDIARY CORPORATIONS. For all purposes of the Plan, a
corporation shall be considered to be a parent or subsidiary corporation of the
Company only if such corporation is a parent or subsidiary corporation of the
Company within the meaning of Sections 424(e) and 424(f) of the Code.

     20.2 NOT A CONTRACT OF EMPLOYMENT. The adoption and maintenance of the Plan
shall not be deemed to be a contract between the Company or any Participating
Company and any person or to be consideration for the employment of any person.
Participation in the Plan at any given time shall not be deemed to create the
right to participate in the Plan or in any other arrangement permitting an
employee of the Company or any Participating Company to purchase Stock at a
discount in the future. The rights and obligations under any participant's terms
of employment with the Company or any Participating Company shall not be
affected by participation in the Plan. Nothing herein contained shall be deemed
to give any person the right to be retained in the employ of the Company or any
Participating Company or to restrict the right of the Company or any
Participating Company to discharge any person at any time, nor shall the Plan be
deemed to give the Company or any Participating Company the right to require any
person to remain in the employ of the Company or such Participating Company or
to restrict any person's right to terminate his employment at any time. The Plan
shall not afford any participant any additional right to compensation as a
result of the termination of such participant's employment for any reason
whatsoever.

     20.3 COMPLIANCE WITH APPLICABLE LAWS. The Company's obligation to offer,
issue, sell, or deliver Stock under the Plan is at all times subject to all
approvals of and compliance with any governmental authorities (whether domestic
or foreign) required in connection with the authorization, offer, issuance,
sale, or delivery of Stock as well as all federal, state, local, and foreign
laws. Without limiting the scope of the preceding sentence, and notwithstanding
any other provision in the Plan, the Company shall not be obligated to grant
options or to offer, issue, sell, or deliver Stock under the Plan to any
employee who is a citizen or resident of a jurisdiction the laws of which, for
reasons of its public policy, prohibit the Company from taking any such action
with respect to such employee.

                                       -9-<PAGE>   1

                                                                   EXHIBIT 10.19

                         HYPERION SOLUTIONS CORPORATION
                             1999 STOCK OPTION PLAN

                                    ARTICLE I

                               GENERAL PROVISIONS

         I.       PURPOSE OF THE PLAN

                  This 1999 Stock Option Plan is intended to promote the
interests of Hyperion Solutions Corporation (the "Corporation") by providing
eligible persons with the opportunity to acquire a proprietary interest, or
otherwise increase their proprietary interest, in the Corporation as an
incentive for them to remain in the service of the Corporation.

                  Capitalized terms shall have the meanings assigned to such
terms in the attached Appendix.

         II.      ADMINISTRATION OF THE PLAN

                  A.       Administration of the Plan may, at the Board's
discretion, be vested in the Primary Committee or a Secondary Committee, or the
Board may retain the power to administer those programs with respect to all such
persons.

                  B.       Members of the Primary Committee shall serve for such
period of time as the Board may determine and may be removed by the Board at any
time. The Board may also at any time terminate the functions of any Secondary
Committee and reassume all powers and authority previously delegated to such
committee or transfer such powers and authority to the Primary Committee.

                  C.       The Plan Administrator shall, within the scope of its
administrative functions under the Plan, have full power and authority to
establish such rules and regulations as it may deem appropriate for proper
administration of the Plan and to make such determinations under, and issue such
interpretations of, the provisions of such programs and any outstanding options
thereunder as it may deem necessary or advisable. Decisions of the Plan
Administrator within the scope of its administrative functions under the Plan
shall be final and binding on all parties who have an interest in the Plan or
any option issued thereunder.

                  D.       Service on the Primary Committee or the Secondary
Committee shall constitute service as a Board member, and members of each such
committee shall accordingly be entitled to full indemnification and
reimbursement as Board members for their service on such committee. No member of
the Primary Committee or the Secondary Committee shall be liable
<PAGE>   2
for any act or omission made in good faith with respect to the Plan or any
option grants under the Plan.

         III.     ELIGIBILITY

                  A.       Employees and consultants to the Corporation shall be
eligible for the grant of options under the Plan, except that members of the
Board and individuals who are considered officers of the Corporation under the
rules of the National Association of Securities Dealers shall not be eligible
for the grant of options under the Plan.

                  B.       The Plan Administrator shall, within the scope of its
administrative jurisdiction under the Plan, have full authority (subject to the
provisions of the Plan) to determine, with respect to the option grants under
the Plan, which eligible persons are to receive option grants, the time or times
when such option grants are to be made, the number of shares to be covered by
each such grant, the time or times at which each option is to become
exercisable, the vesting schedule (if any) applicable to the option shares and
the maximum term for which the option is to remain outstanding.

         IV.      STOCK SUBJECT TO THE PLAN

                  A.       The stock issuable under the Plan shall be shares of
authorized but unissued or reacquired Common Stock, including shares repurchased
by the Corporation on the open market. The number of shares of Common Stock
which may be issued under the Plan shall be determined from time to time by the
Primary Committee.

                  B.       Shares of Common Stock subject to outstanding options
shall be available for subsequent issuance under the Plan to the extent (i) the
options expire or terminate for any reason prior to exercise in full or (ii) the
options are canceled in accordance with the cancellation-regrant provisions of
Article II. All shares issued under the Plan, whether or not those shares are
subsequently repurchased by the Corporation pursuant to its repurchase rights
under the Plan, shall reduce on a share-for-share basis the number of shares of
Common Stock available for subsequent issuance under the Plan. In addition,
should the exercise price of an option under the Plan be paid with shares of
Common Stock or should shares of Common Stock otherwise issuable under the Plan
be withheld by the Corporation in satisfaction of the withholding taxes incurred
in connection with the exercise of an option under the Plan, then the number of
shares of Common Stock available for issuance under the Plan shall be reduced by
the gross number of shares for which the option is exercised, and not by the net
number of shares of Common Stock issued to the holder of such option.

                  C.       Should any change be made to the Common Stock by
reason of any stock split, stock dividend, recapitalization, combination of
shares, exchange of shares or other change affecting the outstanding Common
Stock as a class without the Corporation's receipt of consideration, appropriate
adjustments shall be made to (i) the maximum number and/or class of securities
issuable under the Plan and (ii) the number and/or class of securities and the
exercise price per share in effect under each outstanding option in order to
prevent the dilution or enlargement of benefits thereunder. The adjustments
determined by the Plan Administrator shall be final, binding and conclusive.

                                       2
<PAGE>   3
                                   ARTICLE II

                                     OPTIONS

         I.       OPTION TERMS

                  Each option shall be evidenced by one or more documents in the
form approved by the Plan Administrator; PROVIDED, however, that each such
document shall comply with the terms specified below.

                  A.       Exercise Price.

                           1.       The exercise price per share shall be fixed
by the Plan Administrator.

                           2.       The exercise price shall become immediately
due upon exercise of the option and shall, subject to the provisions of Section
I of Article III and the documents evidencing the option, be payable in one or
more of the forms specified below:

                                    (i)      cash or check made payable to the
Corporation,

                                    (ii)     shares of Common Stock held for the
requisite period necessary to avoid a charge to the Corporation's earnings for
financial reporting purposes and valued at Fair Market Value on the Exercise
Date, or

                                    (iii)    to the extent the option is
exercised for vested shares, through a special sale and remittance procedure
pursuant to which the Optionee shall concurrently provide irrevocable written
instructions to (a) a Corporation-designated brokerage firm to effect the
immediate sale of the purchased shares and remit to the Corporation, out of the
sale proceeds available on the settlement date, sufficient funds to cover the
aggregate exercise price payable for the purchased shares plus all applicable
Federal, state and local income and employment taxes required to be withheld by
the Corporation by reason of such exercise and (b) the Corporation to deliver
the certificates for the purchased shares directly to such brokerage firm in
order to complete the sale transaction.

                  Except to the extent such sale and remittance procedure is
utilized, payment of the exercise price for the purchased shares must be made on
the Exercise Date.

                  B.       Exercise and Term of Options. Each option shall be
exercisable at such time or times, during such period and for such number of
shares as shall be determined by the Plan Administrator and set forth in the
documents evidencing the option. However, no option shall have a term in excess
of ten (10) years measured from the option grant date.

                  C.       Effect of Termination of Service.

                           1.       The following provisions shall govern the
exercise of any options held by the Optionee at the time of cessation of Service
or death:

                                       3
<PAGE>   4
                                    (i)      Any option outstanding at the time
of the Optionee's cessation of Service for any reason shall remain exercisable
for such period of time thereafter as shall be determined by the Plan
Administrator and set forth in the documents evidencing the option, but no such
option shall be exercisable after the expiration of the option term.

                                    (ii)     Any option exercisable in whole or
in part by the Optionee at the time of death may be subsequently exercised by
the personal representative of the Optionee's estate or by the person or persons
to whom the option is transferred pursuant to the Optionee's will or beneficiary
designation or in accordance with the laws of descent and distribution.

                                    (iii)    During the applicable post-Service
exercise period, the option may not be exercised in the aggregate for more than
the number of vested shares for which the option is exercisable on the date of
the Optionee's cessation of Service. Upon the expiration of the applicable
exercise period or (if earlier) upon the expiration of the option term, the
option shall terminate and cease to be outstanding for any vested shares for
which the option has not been exercised. However, the option shall, immediately
upon the Optionee's cessation of Service, terminate and cease to be outstanding
to the extent it is not exercisable for vested shares on the date of such
cessation of Service.

                                    (iv)     Should the Optionee's Service be
terminated for Misconduct, then all outstanding options held by the Optionee
shall terminate immediately and cease to be outstanding.

                                    (v)      In the event of an Involuntary
Termination following a Corporate Transaction, the provisions of Section III of
this Article II shall govern the period for which the outstanding options are to
remain exercisable following the Optionee's cessation of Service and shall
supersede any provisions to the contrary in this Section I.

                           2.       The Plan Administrator shall have the
discretion, exercisable either at the time an option is granted or at any time
while the option remains outstanding, to:

                                    (i)      extend the period of time for which
the option is to remain exercisable following the Optionee's cessation of
Service from the period otherwise in effect for that option to such greater
period of time as the Plan Administrator shall deem appropriate, but in no event
beyond the expiration of the option term, and/or

                                    (ii)     permit the option to be exercised,
during the applicable post-Service exercise period, not only with respect to the
number of vested shares of Common Stock for which such option is exercisable at
the time of the Optionee's cessation of Service but also with respect to one or
more additional installments in which the Optionee would have vested under the
option had the Optionee continued in Service.

                  D.       Stockholder Rights. The holder of an option shall
have no stockholder rights with respect to the shares subject to the option
until such person shall have exercised the option, paid the exercise price and
become a holder of record of the purchased shares.

                                       4
<PAGE>   5
                  E.       Repurchase Rights. The Plan Administrator shall have
the discretion to grant options which are exercisable for unvested shares of
Common Stock. Should the Optionee cease Service while holding such unvested
shares, the Corporation shall have the right to repurchase, at the exercise
price paid per share, any or all of those unvested shares. The terms upon which
such repurchase right shall be exercisable (including the period and procedure
for exercise and the appropriate vesting schedule for the purchased shares)
shall be established by the Plan Administrator and set forth in the document
evidencing such repurchase right.

                  F.       Limited Transferability of Options. During the
lifetime of the Optionee, the option shall be exercisable only by the Optionee
and shall not be assignable or transferable other than by will, beneficiary
designation or the laws of descent and distribution following the Optionee's
death. However, a Non-Statutory Option may be assigned in whole or in part
during the Optionee's lifetime in accordance with the terms of a Qualified
Domestic Relations Order. The assigned portion may only be exercised by the
person or persons who acquire a proprietary interest in the option pursuant to
such Qualified Domestic Relations Order. The terms applicable to the assigned
portion shall be the same as those in effect for the option immediately prior to
such assignment and shall be set forth in such documents issued to the assignee
as the Plan Administrator may deem appropriate.

         II.      CORPORATE TRANSACTION/CHANGE IN CONTROL

                  A.       In the event of any Corporate Transaction, each
outstanding option shall automatically accelerate so that each such option
shall, immediately prior to the effective date of the Corporate Transaction,
become fully exercisable for all of the shares of Common Stock at the time
subject to such option and may be exercised for any or all of those shares as
fully-vested shares of Common Stock. However, an outstanding option shall NOT so
accelerate if and to the extent: (i) such option is, in connection with the
Corporate Transaction, either to be assumed by the successor corporation (or
parent thereof) or to be replaced with a comparable option to purchase shares of
the capital stock of the successor corporation (or parent thereof), (ii) such
option is to be replaced with a cash incentive program of the successor
corporation which preserves the spread existing on the unvested option shares at
the time of the Corporate Transaction and provides for subsequent payout in
accordance with the same vesting schedule applicable to such option or (iii) the
acceleration of such option is subject to other limitations imposed by the Plan
Administrator at the time of the option grant. The determination of option
comparability under clause (i) above shall be made by the Plan Administrator,
and its determination shall be final, binding and conclusive.

                  B.       All outstanding repurchase rights shall also
terminate automatically, and the shares of Common Stock subject to those
terminated rights shall immediately vest in full, in the event of any Corporate
Transaction, except to the extent: (i) those repurchase rights are to be
assigned to the successor corporation (or parent thereof) in connection with
such Corporate Transaction or (ii) such accelerated vesting is precluded by
other limitations imposed by the Plan Administrator at the time the repurchase
right is issued.

                                       5
<PAGE>   6
                  C.       Immediately following the consummation of the
Corporate Transaction, all outstanding options shall terminate and cease to be
outstanding, except to the extent assumed by the successor corporation (or
parent thereof).

                  D.       Each option which is assumed in connection with a
Corporate Transaction shall be appropriately adjusted, immediately after such
Corporate Transaction, to apply to the number and class of securities which
would have been issuable to the Optionee in consummation of such Corporate
Transaction had the option been exercised immediately prior to such Corporate
Transaction. Appropriate adjustments shall also be made to (i) the number and
class of securities available for issuance under the Plan on both an aggregate
and per Optionee basis following the consummation of such Corporate Transaction
and (ii) the exercise price payable per share under each outstanding option,
PROVIDED the aggregate exercise price payable for such securities shall remain
the same.

                  E.       Any options which are assumed or replaced in the
Corporate Transaction and do not otherwise accelerate at that time shall
automatically accelerate (and any of the Corporation's outstanding repurchase
rights which do not otherwise terminate at the time of the Corporate Transaction
shall automatically terminate and the shares of Common Stock subject to those
terminated rights shall immediately vest in full) in the event the Optionee's
Service should subsequently terminate by reason of an Involuntary Termination
within eighteen (18) months following the effective date of such Corporate
Transaction. Any options so accelerated shall remain exercisable for
fully-vested shares until the EARLIER of (i) the expiration of the option term
or (ii) the expiration of the one (1)-year period measured from the effective
date of the Involuntary Termination.

                  F.       The Plan Administrator shall have the discretion,
exercisable either at the time the option is granted or at any time while the
option remains outstanding, to (i) provide for the automatic acceleration of one
or more outstanding options (and the automatic termination of one or more
outstanding repurchase rights with the immediate vesting of the shares of Common
Stock subject to those rights) upon the occurrence of a Change in Control or
(ii) condition any such option acceleration (and the termination of any
outstanding repurchase rights) upon the subsequent Involuntary Termination of
the Optionee's Service within a specified period following the effective date of
such Change in Control. Any options accelerated in connection with a Change in
Control shall remain fully exercisable until the expiration or sooner
termination of the option term.

                  G.       The grant of options under the Plan shall in no way
affect the right of the Corporation to adjust, reclassify, reorganize or
otherwise change its capital or business structure or to merge, consolidate,
dissolve, liquidate or sell or transfer all or any part of its business or
assets.

         III.     CANCELLATION AND REGRANT OF OPTIONS

                  The Plan Administrator shall have the authority to effect, at
any time and from time to time, with the consent of the affected option holders,
the cancellation of any or all outstanding options under the Plan and to grant
in substitution new options covering the same or

                                       6
<PAGE>   7
different number of shares of Common Stock but with an exercise price per share
based on the Fair Market Value per share of Common Stock on the new option grant
date.

         IV.      STOCK APPRECIATION RIGHTS

                  A.       The Plan Administrator shall have full power and
authority to grant to selected Optionees tandem stock appreciation rights and/or
limited stock appreciation rights.

                  B.       The following terms shall govern the grant and
exercise of tandem stock appreciation rights:

                                    (i)      One or more Optionees may be
granted the right, exercisable upon such terms as the Plan Administrator may
establish, to elect between the exercise of the underlying option for shares of
Common Stock and the surrender of that option in exchange for a distribution
from the Corporation in an amount equal to the excess of (a) the Fair Market
Value (on the option surrender date) of the number of shares in which the
Optionee is at the time vested under the surrendered option (or surrendered
portion thereof) over (b) the aggregate exercise price payable for such shares.

                                    (ii)     No such option surrender shall be
effective unless it is approved by the Plan Administrator. If the surrender is
so approved, then the distribution to which the Optionee shall be entitled may
be made in shares of Common Stock valued at Fair Market Value on the option
surrender date, in cash, or partly in shares and partly in cash, as the Plan
Administrator shall in its sole discretion deem appropriate.

                                    (iii)    If the surrender of an option is
rejected by the Plan Administrator, then the Optionee shall retain whatever
rights the Optionee had under the surrendered option (or surrendered portion
thereof) on the option surrender date and may exercise such rights at any time
prior to the LATER of (a) five (5) business days after the receipt of the
rejection notice or (b) the last day on which the option is otherwise
exercisable in accordance with the terms of the documents evidencing such
option, but in no event may such rights be exercised more than ten (10) years
after the option grant date.

                  C.       The following terms shall govern the grant and
exercise of limited stock appreciation rights:

                                    (i)      Upon the occurrence of a Hostile
Take-Over, each such individual holding one or more options with such a limited
stock appreciation right in effect for at least six (6) months shall have the
unconditional right (exercisable for a thirty (30)-day period following such
Hostile Take-Over) to surrender each such option to the Corporation, to the
extent the option is at the time exercisable for vested shares of Common Stock.
In return for the surrendered option, the Optionee shall receive a cash
distribution from the Corporation in an amount equal to the excess of (A) the
Take-Over Price of the shares of Common Stock which are at the time vested under
each surrendered option (or surrendered portion thereof) over (B) the aggregate
exercise price payable for such shares. Such cash distribution shall be paid
within five (5) days following the option surrender date.

                                       7
<PAGE>   8
                                    (ii)     Neither the approval of the Plan
Administrator nor the consent of the Board shall be required in connection with
such option surrender and cash distribution.

                                    (iii)    The balance of the option (if any)
shall continue in full force and effect in accordance with the documents
evidencing such option.

                                   ARTICLE III

                                  MISCELLANEOUS

         I.       FINANCING

                  A.       The Plan Administrator may permit any Optionee to pay
the option exercise price under the Plan by delivering a promissory note payable
in one or more installments. The terms of any such promissory note (including
the interest rate and the terms of repayment) shall be established by the Plan
Administrator in its sole discretion. Promissory notes may be authorized with or
without security or collateral. In all events, the maximum credit available to
the Optionee may not exceed the sum of (i) the aggregate option exercise price
or purchase price payable for the purchased shares plus (ii) any Federal, state
and local income and employment tax liability incurred by the Optionee in
connection with the option exercise or share purchase.

                  B.       The Plan Administrator may, in its discretion,
determine that one or more such promissory notes shall be subject to forgiveness
by the Corporation in whole or in part upon such terms as the Plan Administrator
may deem appropriate.

         II.      TAX WITHHOLDING

                  A.       The Corporation's obligation to deliver shares of
Common Stock upon the exercise of options or stock appreciation rights under the
Plan shall be subject to the satisfaction of all applicable Federal, state and
local income and employment tax withholding requirements.

                  B.       The Plan Administrator may, in its discretion,
provide any or all holders of Non-Statutory Options or unvested shares of Common
Stock under the Plan with the right to use shares of Common Stock in
satisfaction of all or part of the Taxes incurred by such holders in connection
with the exercise of their options or the vesting of their shares. Such right
may be provided to any such holder in either or both of the following formats:

                                    (i)      Stock Withholding: The election to
have the Corporation withhold, from the shares of Common Stock otherwise
issuable upon the exercise of such Non-Statutory Option or the vesting of such
shares, a portion of those shares with an aggregate Fair Market Value equal to
the percentage of the Taxes (not to exceed one hundred percent (100%))
designated by the holder.

                                       8
<PAGE>   9
                                    (ii)     Stock Delivery: The election to
deliver to the Corporation, at the time the Non-Statutory Option is exercised or
the shares vest, one or more shares of Common Stock previously acquired by such
holder (other than in connection with the option exercise or share vesting
triggering the Taxes) with an aggregate Fair Market Value equal to the
percentage of the Taxes (not to exceed one hundred percent (100%)) designated by
the holder.

         III.     EFFECTIVE DATE AND TERM OF THE PLAN

                  A.       The Plan shall become effective on the Plan Effective
Date and options may be granted under the Plan from and after the Plan Effective
Date.

                  B.       The Plan shall terminate upon the EARLIEST of (i)
September 15, 2009, (ii) the date on which all shares available for issuance
under the Plan shall have been issued pursuant to the exercise of the options or
(iii) the termination of all outstanding options in connection with a Corporate
Transaction. Upon such Plan termination, all options outstanding on such date
shall thereafter continue to have force and effect in accordance with the
provisions of the documents evidencing such options.

         IV.      AMENDMENT OF THE PLAN

                  The Board shall have complete and exclusive power and
authority to amend or modify the Plan in any or all respects. However, no such
amendment or modification shall adversely affect the rights and obligations with
respect to options or stock appreciation rights at the time outstanding under
the Plan unless the Optionee consents to such amendment or modification.

         V.       USE OF PROCEEDS

                  Any cash proceeds received by the Corporation from the sale of
shares of Common Stock under the Plan shall be used for general corporate
purposes.

         VI.      REGULATORY APPROVALS

                  A.       The implementation of the Plan, the granting of any
option or stock appreciation right under the Plan and the issuance of any shares
of Common Stock upon the exercise of any option or stock appreciation right
shall be subject to the Corporation's procurement of all approvals and permits
required by regulatory authorities having jurisdiction over the Plan, the
options and stock appreciation rights granted under it and the shares of Common
Stock issued pursuant to it.

                  B.       No shares of Common Stock or other assets shall be
issued or delivered under the Plan unless and until there shall have been
compliance with all applicable requirements of Federal and state securities
laws, including the filing and effectiveness of the Form S-8 registration
statement for the shares of Common Stock issuable under the Plan, and all
applicable listing requirements of any stock exchange (or the Nasdaq National
Market, if applicable) on which Common Stock is then listed for trading.

                                       9
<PAGE>   10
         VII.     NO EMPLOYMENT/SERVICE RIGHTS

                  Nothing in the Plan shall confer upon the Optionee any right
to continue in Service for any period of specific duration or interfere with or
otherwise restrict in any way the rights of the Corporation (or any Parent or
Subsidiary employing or retaining such person) or of the Optionee, which rights
are hereby expressly reserved by each, to terminate such person's Service at any
time for any reason, with or without cause.

                                       10
<PAGE>   11
                                    APPENDIX

                  The following definitions shall be in effect under the Plan:

                  A.       BOARD shall mean the Corporation's Board of
Directors.

                  B.       CHANGE IN CONTROL shall mean a change in ownership or
control of the Corporation effected through either of the following
transactions:

                           (i)      the acquisition, directly or indirectly, by
any person or related group of persons (other than the Corporation or a person
that directly or indirectly controls, is controlled by, or is under common
control with, the Corporation), of beneficial ownership (within the meaning of
Rule 13d-3 of the 1934 Act) of securities possessing more than fifty percent
(50%) of the total combined voting power of the Corporation's outstanding
securities pursuant to a tender or exchange offer made directly to the
Corporation's stockholders which the Board does not recommend such stockholders
to accept, or

                           (ii)     a change in the composition of the Board
over a period of thirty-six (36) consecutive months or less such that a majority
of the Board members ceases, by reason of one or more contested elections for
Board membership, to be comprised of individuals who either (A) have been Board
members continuously since the beginning of such period or (B) have been elected
or nominated for election as Board members during such period by at least a
majority of the Board members described in clause (A) who were still in office
at the time the Board approved such election or nomination.

                  C.       CODE shall mean the Internal Revenue Code of 1986, as
amended.

                  D.       COMMON STOCK shall mean the Corporation's common
stock.

                  E.       CORPORATE TRANSACTION shall mean either of the
following stockholder-approved transactions to which the Corporation is a party:

                           (i)      a merger or consolidation in which
securities possessing more than fifty percent (50%) of the total combined voting
power of the Corporation's outstanding securities are transferred to a person or
persons different from the persons holding those securities immediately prior to
such transaction; or

                           (ii)     the sale, transfer or other disposition of
all or substantially all of the Corporation's assets in complete liquidation or
dissolution of the Corporation.

                  F.       CORPORATION shall mean Hyperion Solutions Corporation
(formerly known as Arbor Software Corporation), a Delaware corporation.

                  G.       PLAN shall mean the Plan in effect under the Plan.

                                      A-1
<PAGE>   12
                  H.       DOMESTIC RELATIONS ORDER shall mean any judgment,
decree or order (including approval of a property settlement agreement) which
provides or otherwise conveys, pursuant to applicable State domestic relations
laws (including community property laws), marital property rights to any spouse
or former spouse of the Optionee.

                  I.       EMPLOYEE shall mean an individual who is in the
employ of the Corporation (or any Parent or Subsidiary), subject to the control
and direction of the employer entity as to both the work to be performed and the
manner and method of performance.

                  J.       EXERCISE DATE shall mean the date on which the
Corporation shall have received written notice of the option exercise.

                  K.       FAIR MARKET VALUE per share of Common Stock on any
relevant date shall be determined in accordance with the following provisions:

                           (i)      If the Common Stock is at the time traded on
the Nasdaq National Market, then the Fair Market Value shall be the closing
price per share of Common Stock on the date in question, as such price is
reported by the National Association of Securities Dealers on the Nasdaq
National Market or any successor system. If there is no closing price for the
Common Stock on the date in question, then the Fair Market Value shall be the
closing price on the last preceding date for which such quotation exists.

                           (ii)     If the Common Stock is at the time listed on
any Stock Exchange, then the Fair Market Value shall be the closing selling
price per share of Common Stock on the date in question on the Stock Exchange
determined by the Plan Administrator to be the primary market for the Common
Stock, as such price is officially quoted in the composite tape of transactions
on such exchange. If there is no closing selling price for the Common Stock on
the date in question, then the Fair Market Value shall be the closing selling
price on the last preceding date for which such quotation exists.

                  L.       HOSTILE TAKE-OVER shall mean a change in ownership of
the Corporation effected through the following transaction:

                           (i)      the acquisition, directly or indirectly, by
any person or related group of persons (other than the Corporation or a person
that directly or indirectly controls, is controlled by, or is under common
control with, the Corporation) of beneficial ownership (within the meaning of
Rule 13d-3 of the 1934 Act) of securities possessing more than fifty percent
(50%) of the total combined voting power of the Corporation's outstanding
securities pursuant to a tender or exchange offer made directly to the
Corporation's stockholders which the Board does not recommend such stockholders
to accept, AND

                           (ii)     more than fifty percent (50%) of the
securities so acquired are accepted from persons other than Section 16 Insiders.

                  M.       INVOLUNTARY TERMINATION shall mean the termination of
the Service of any individual which occurs by reason of:

                                      A-2
<PAGE>   13
                           (i)      such individual's involuntary dismissal or
discharge by the Corporation for reasons other than Misconduct, or

                           (ii)     such individual's voluntary resignation
following (A) a change in his or her position with the Corporation which
materially reduces his or her level of responsibility, (B) a reduction in his or
her level of compensation (including base salary, fringe benefits and
participation in corporate-performance based bonus or incentive programs) by
more than fifteen percent (15%) or (C) a relocation of such individual's place
of employment by more than fifty (50) miles, provided and only if such change,
reduction or relocation is effected by the Corporation without the individual's
consent.

                  N.       MISCONDUCT shall mean the commission of any act of
fraud, embezzlement or dishonesty by the Optionee, any unauthorized use or
disclosure by such person of confidential information or trade secrets of the
Corporation (or any Parent or Subsidiary), or any other intentional misconduct
by such person adversely affecting the business or affairs of the Corporation
(or any Parent or Subsidiary) in a material manner. The foregoing definition
shall not be deemed to be inclusive of all the acts or omissions which the
Corporation (or any Parent or Subsidiary) may consider as grounds for the
dismissal or discharge of any Optionee or other person in the Service of the
Corporation (or any Parent or Subsidiary).

                  O.       1934 ACT shall mean the Securities Exchange Act of
1934, as amended.

                  P.       NON-STATUTORY OPTION shall mean an option not
intended to satisfy the requirements of Code Section 422.

                  Q.       OPTIONEE shall mean any person to whom an option is
granted under the Plan.

                  R.       PARENT shall mean any corporation (other than the
Corporation) in an unbroken chain of corporations ending with the Corporation,
provided each corporation in the unbroken chain (other than the Corporation)
owns, at the time of the determination, stock possessing fifty percent (50%) or
more of the total combined voting power of all classes of stock in one of the
other corporations in such chain.

                  S.       PERMANENT DISABILITY OR PERMANENTLY DISABLED shall
mean the inability of the Optionee to engage in any substantial gainful activity
by reason of any medically determinable physical or mental impairment expected
to result in death or to be of continuous duration of twelve (12) months or
more.

                  T.       PLAN shall mean the Corporation's 1999 Stock Option
Plan, as set forth in this document.

                  U.       PLAN ADMINISTRATOR shall mean the particular entity,
whether the Primary Committee, the Secondary Committee or the Board, which is
authorized to administer the Plan, to the extent such entity is carrying out its
administrative functions under those programs with respect to the persons under
its jurisdiction.

                                      A-3
<PAGE>   14
                  V.       PLAN EFFECTIVE DATE shall mean September 15, 1999.

                  W.       PRIMARY COMMITTEE shall mean the committee of two (2)
or more non-employee Board members appointed by the Board to administer the
Plan.

                  X.       QUALIFIED DOMESTIC RELATIONS ORDER shall mean a
Domestic Relations Order that would substantially comply with the requirements
of Code Section 414(p) if the Plan were subject to such section. The Plan
Administrator shall have the sole discretion to determine whether a Domestic
Relations Order is a Qualified Domestic Relations Order.

                  Y.       SECONDARY COMMITTEE shall mean a committee of one (1)
or more Board members appointed by the Board to administer the Plan.

                  Z.       SERVICE shall mean the provision of services to the
Corporation (or any Parent or Subsidiary) by a person in the capacity of an
Employee, a non-employee member of the board of directors or a consultant or
independent advisor, except to the extent otherwise specifically provided in the
documents evidencing the option grant.

                  AA.      STOCK EXCHANGE shall mean either the American Stock
Exchange or the New York Stock Exchange.

                  BB.      SUBSIDIARY shall mean any corporation (other than the
Corporation) in an unbroken chain of corporations beginning with the
Corporation, provided each corporation (other than the last corporation) in the
unbroken chain owns, at the time of the determination, stock possessing fifty
percent (50%) or more of the total combined voting power of all classes of stock
in one of the other corporations in such chain.

                  CC.      TAKE-OVER PRICE shall mean the GREATER of (i) the
Fair Market Value per share of Common Stock on the date the option is
surrendered to the Corporation in connection with a Hostile Take-Over or (ii)
the highest reported price per share of Common Stock paid by the tender offeror
in effecting such Hostile Take-Over. However, if the surrendered option is an
Incentive Option, the Take-Over Price shall not exceed the clause (i) price per
share.

                  DD.      TAXES shall mean the Federal, state and local income
and employment tax liabilities incurred by the holder of Non-Statutory Options
or unvested shares of Common Stock in connection with the exercise of those
options or the vesting of those shares.

Adopted by BOD 9/15/99, as amended by BOD on 02/22/00

                                      A-4

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00015-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00015-of-00352.parquet"}]]