Document:

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                                                                    Exhibit 10.6

                              Vignette Corporation

                       1999 Supplemental Stock Option Plan

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                                TABLE OF CONTENTS

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                                                                             Page
<S>                                                                          <C>
 ARTICLE 1. INTRODUCTION ...............................................     1

 ARTICLE 2. ADMINISTRATION .............................................     1
       2.1 Committee Composition .......................................     1
       2.2 Committee Responsibilities ..................................     1

 ARTICLE 3. SHARES AVAILABLE FOR GRANTS ................................     1
       3.1 Basic Limitation ............................................     1
       3.2 Additional Shares ...........................................     1
       3.3 Dividend Equivalents ........................................     2

 ARTICLE 4. ELIGIBILITY ................................................     2
       4.1 Options .....................................................     2

 ARTICLE 5. OPTIONS ....................................................     2
       5.1 Stock Option Agreement ......................................     2
       5.2 Number of Shares ............................................     2
       5.3 Exercise Price ..............................................     2
       5.4 Exercisability and Term .....................................     2
       5.5 Modification or Assumption of Options .......................     2
       5.6 Buyout Provisions ...........................................     2

 ARTICLE 6. PAYMENT FOR OPTION SHARES ..................................     3
       6.1 General Rule ................................................     3
       6.2 Surrender of Common Stock ...................................     3
       6.3 Exercise/Sale ...............................................     3
       6.4 Exercise/Pledge .............................................     3
       6.5 Promissory Note .............................................     3
       6.6 Other Forms of Payment ......................................     3

 ARTICLE 7 CHANGE IN CONTROL ...........................................     3
       7.1 Effect of Change in Control .................................     3
       7.2 nvoluntary Termination ......................................     3

 ARTICLE 8. PROTECTION AGAINST DILUTION ................................     4
       8.1 Adjustments .................................................     4
       8.2 Dissolution or Liquidation ..................................     4
       8.3 Reorganizations .............................................     4
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<S>                                                                          <C>
 ARTICLE 9. DEFERRAL OF AWARDS .........................................     5

 ARTICLE 10. AWARDS UNDER OTHER PLANS ..................................     5

 ARTICLE 11. LIMITATION ON RIGHTS ......................................     5
       11.1 Retention Rights ...........................................     5
       11.2 Stockholders' Rights .......................................     6
       11.3 Regulatory Requirements ....................................     6

 ARTICLE 12. WITHHOLDING TAXES .........................................     6
       12.1 General ....................................................     6
       12.2 Share Withholding ..........................................     6

 ARTICLE 13. FUTURE OF THE PLAN ........................................     6
       13.1 Term of the Plan ...........................................     6
       13.2 Amendment or Termination ...................................     6

 ARTICLE 14. DEFINITIONS ...............................................     6
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                              Vignette Corporation
                       1999 Supplemental Stock Option Plan

     ARTICLE 1. INTRODUCTION.

     The Plan was adopted by the Board to be effective as of July 1, 1999. The
purpose of the Plan is to promote the long-term success of the Corporation and
the creation of stockholder value by (a) encouraging Employees and Consultants
to focus on critical long-range objectives, (b) encouraging the attraction and
retention of Employees and Consultants with exceptional qualifications and (c)
linking Employees and Consultants directly to stockholder interests through
increased stock ownership. The Plan seeks to achieve this purpose by providing
for Options (which shall be nonstatutory stock options).

     The Plan shall be governed by, and construed in accordance with, the laws
of the State of Delaware (except their choice-of-law provisions).

     ARTICLE 2. ADMINISTRATION.

     2.1 Committee Composition. The Plan shall be administered by the Committee.
The Committee shall consist exclusively of one or more directors of the
Corporation, who shall be appointed by the Board.

     2.2 Committee Responsibilities. The Committee shall (a) select the
Employees or Consultants who are to receive Options under the Plan, (b)
determine the number, vesting requirements and other features and conditions of
such Options, (c) interpret the Plan and (d) make all other decisions relating
to the operation of the Plan. The Committee may adopt such rules or guidelines
as it deems appropriate to implement the Plan. The Committee's determinations
under the Plan shall be final and binding on all persons.

     ARTICLE 3. SHARES AVAILABLE FOR GRANTS.

     3.1 Basic Limitation. Shares of Common Stock issued pursuant to the Plan
may be authorized but unissued shares or treasury shares. The aggregate number
of Options awarded under the Plan shall not exceed (a) 4,000,000, plus (b) the
additional shares of Common Stock described in Section 3.2. The limitation of
this Section 3.1 shall be subject to adjustment pursuant to Article 8.

     3.2 Additional Shares. If shares of Common Stock issued upon the exercise
of Options are forfeited, then such shares of Common Stock shall again become
available for Options under the Plan. If Options are forfeited or terminate for
any other reason before being exercised, then the corresponding shares of Common
Stock shall again become available for Options under the Plan.

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     3.3 Dividend Equivalents. Any dividend equivalents paid or credited under
the Plan shall not be applied against the number of shares available for
Options.

     ARTICLE 4. ELIGIBILITY.

     4.1 Options. Only Employees and Consultants who are common-law employees of
the Corporation, a Parent or a Subsidiary shall be eligible for the grant of
Options, Employees who are officers of the Corporation shall not be eligible for
the grant of Options under this Plan.

     ARTICLE 5. OPTIONS.

     5.1 Stock Option Agreement. Each grant of an Option under the Plan shall be
evidenced by a Stock Option Agreement between the Optionee and the Corporation.
Such Option shall be subject to all applicable terms of the Plan and may be
subject to any other terms that are not inconsistent with the Plan. The
provisions of the various Stock Option Agreements entered into under the Plan
need not be identical. Options may be granted in consideration of a reduction in
the Optionee's other compensation. A Stock Option Agreement may provide that a
new Option will be granted automatically to the Optionee when he or she
exercises a prior Option and pays the Exercise Price in the form described in
Section 6.2.

     5.2 Number of Shares. Each Stock Option Agreement shall specify the number
of shares of Common Stock subject to the Option and shall provide for the
adjustment of such number in accordance with Article 8.

     5.3 Exercise Price. Each Stock Option Agreement shall specify the Exercise
Price; provided that the Exercise Price shall in no event be less than 85% of
the Fair Market Value of a share of Common Stock on the date of grant. A Stock
Option Agreement may specify an Exercise Price that varies in accordance with a
predetermined formula while the NSO is outstanding.

     5.4 Exercisability and Term. Each Stock Option Agreement shall specify the
date or event when all or any installment of the Option is to become
exercisable. The Stock Option Agreement shall also specify the term of the
Option. A Stock Option Agreement may provide for accelerated exercisability in
the event of the Optionee's death, disability or retirement or other events and
may provide for expiration prior to the end of its term in the event of the
termination of the Optionee's service.

     5.5 Modification or Assumption of Options. Within the limitations of the
Plan, the Committee may modify, extend or assume outstanding options or may
accept the cancellation of outstanding options (whether granted by the
Corporation or by another issuer) in return for the grant of new options for the
same or a different number of shares and at the same or a different exercise
price. The foregoing notwithstanding, no modification of an Option shall,
without the consent of the Optionee, alter or impair his or her rights or
obligations under such Option.

     5.6 Buyout Provisions. The Committee may at any time (a) offer to buy out
for a payment in cash or cash equivalents an Option previously granted or (b)
authorize an Optionee to

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elect to cash out an Option previously granted, in either case at such time and
based upon such terms and conditions as the Committee shall establish.

     ARTICLE 6. PAYMENT FOR OPTION SHARES.

     6.1 General Rule. The entire Exercise Price of shares of Common Stock
issued upon exercise of Options shall be payable in cash or cash equivalents at
the time when such shares of Common Stock are purchased, except the Committee
may at any time accept payment in any form(s) described in this Article 6.

     6.2 Surrender of Common Stock. To the extent that this Section 6.2 is
applicable, all or any part of the Exercise Price may be paid by surrendering,
or attesting to the ownership of, shares of Common Stock that are already owned
by the Optionee. Such shares of Common Stock shall be valued at their Fair
Market Value on the date when the new shares of Common Stock are purchased under
the Plan. The Optionee shall not surrender, or attest to the ownership of,
shares of Common Stock in payment of the Exercise Price if such action would
cause the Corporation to recognize compensation expense (or additional
compensation expense) with respect to the Option for financial reporting
purposes.

     6.3 Exercise/Sale. To the extent that this Section 6.3 is applicable, all
or any part of the Exercise Price and any withholding taxes may be paid by
delivering (on a form prescribed by the Corporation) an irrevocable direction to
a securities broker approved by the Corporation to sell all or part of the
shares of Common Stock being purchased under the Plan and to deliver all or part
of the sales proceeds to the Corporation.

     6.4 Exercise/Pledge. To the extent that this Section 6.4 is applicable, all
or any part of the Exercise Price and any withholding taxes may be paid by
delivering (on a form prescribed by the Corporation) an irrevocable direction to
pledge all or part of the shares of Common Stock being purchased under the Plan
to a securities broker or lender approved by the Corporation, as security for a
loan, and to deliver all or part of the loan proceeds to the Corporation.

     6.5 Promissory Note. To the extent that this Section 6.5 is applicable, all
or any part of the Exercise Price and any withholding taxes may be paid by
delivering (on a form prescribed by the Corporation) a full-recourse promissory
note. However, the par value of the shares of Common Stock being purchased under
the Plan, if newly issued, shall be paid in cash or cash equivalents.

     6.6 Other Forms of Payment. To the extent that this Section 6.6 is
applicable, all or any part of the Exercise Price and any withholding taxes may
be paid in any other form that is consistent with applicable laws, regulations
and rules.

     ARTICLE 7. CHANGE IN CONTROL

     7.1 Effect of Change in Control. In the event of any Change in Control,
each outstanding Option shall automatically accelerate so that each such Option
shall, immediately prior to the effective date of the Change in Control, 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

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shares as fully-vested shares of Common Stock. However, an outstanding Option
shall not so accelerate if and to the extent such Option is, in connection with
the Change in Control, either to be assumed by the successor corporation (or
parent thereof) or to be replaced with a comparable Option for shares of the
capital stock of the successor corporation (or parent thereof). The
determination of Option comparability shall be made by the Plan Administrator,
and its determination shall be final, binding and conclusive.

     7.2 Involuntary Termination. In addition, in the event that the Option is
assumed by the successor corporation (or parent thereof) and the Optionee
experiences an Involuntary Termination within eighteen months following a Change
in Control, each outstanding Option shall automatically accelerate so that each
such Option shall, immediately prior to the effective date of the Involuntary
Termination, 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.

     ARTICLE 8. PROTECTION AGAINST DILUTION.

     8.1 Adjustments. In the event of a subdivision of the outstanding shares of
Common Stock, a declaration of a dividend payable in shares of Common Stock, a
declaration of a dividend payable in a form other than shares of Common Stock in
an amount that has a material effect on the price of shares of Common Stock, a
combination or consolidation of the outstanding shares of Common Stock (by
reclassification or otherwise) into a lesser number of shares of Common Stock, a
recapitalization, a spin-off or a similar occurrence, the Committee shall make
such adjustments as it, in its sole discretion, deems appropriate in one or more
of:

         (a) The number of Options available for future Options under Article
     3;

         (b) The number of shares of Common Stock covered by each outstanding
     Option; or

         (c) The Exercise Price under each outstanding Option.

Except as provided in this Article 8, an Optionee shall have no rights by reason
of any issue by the Corporation of stock of any class or securities convertible
into stock of any class, any subdivision or consolidation of shares of stock of
any class, the payment of any stock dividend or any other increase or decrease
in the number of shares of stock of any class.

     8.2 Dissolution or Liquidation. To the extent not previously exercised or
settled, Options shall terminate immediately prior to the dissolution or
liquidation of the Corporation.

     8.3 Reorganizations. In the event that the Corporation is a party to a
merger or other reorganization, outstanding Options shall be subject to the
agreement of merger or reorganization. Such agreement shall provide for (a) the
continuation of the outstanding Options by the Corporation, if the Corporation
is a surviving corporation, (b) the assumption of the outstanding Options by the
surviving corporation or its parent or subsidiary, (c) the substitution by the
surviving corporation or its parent or subsidiary of its own awards for the
outstanding Options, (d) full exercisability or vesting and accelerated
expiration of the outstanding Options

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or (e) settlement of the full value of the outstanding Options in cash or cash
equivalents followed by cancellation of such Options.

     ARTICLE 9.  DEFERRAL OF AWARDS.

          The Committee (in its sole discretion) may permit or require an
Optionee to:

          (a) Have shares of Common Stock that otherwise would be delivered to
     such Optionee as a result of the exercise of an Option converted into an
     equal number of stock units; or

          (b) Have shares of Common Stock that otherwise would be delivered to
     such Optionee as a result of the exercise of an Option converted into
     amounts credited to a deferred compensation account established for such
     Optionee by the Committee as an entry on the Corporation's books. Such
     amounts shall be determined by reference to the Fair Market Value of such
     shares of Common Stock as of the date when they otherwise would have been
     delivered to such Optionee.

A deferred compensation account established under this Article 9 may be credited
with interest or other forms of investment return, as determined by the
Committee. An Optionee for whom such an account is established shall have no
rights other than those of a general creditor of the Corporation. Such an
account shall represent an unfunded and unsecured obligation of the Corporation
and shall be subject to the terms and conditions of the applicable agreement
between such Optionee and the Corporation. If the deferral or conversion of
Options is permitted or required, the Committee (in its sole discretion) may
establish rules, procedures and forms pertaining to such Options, including
(without limitation) the settlement of deferred compensation accounts
established under this Article 9.

     ARTICLE 10. AWARDS UNDER OTHER PLANS.

          The Corporation may grant awards under other plans or programs. Such
awards may be settled in the form of shares of Common Stock issued under this
Plan. Such shares of Common Stock shall be treated for all purposes under the
Plan like shares of Common Stock issued in settlement of stock units and shall,
when issued, reduce the number of shares of Common Stock available under Article
3.

     ARTICLE 11. LIMITATION ON RIGHTS.

     11.1 Retention Rights. Neither the Plan nor any Option granted under the
Plan shall be deemed to give any individual a right to remain an Employee or
Consultant. The Corporation and its Parents, Subsidiaries and Affiliates reserve
the right to terminate the service of any Employee or Consultant at any time,
with or without cause, subject to applicable laws, the Corporation's certificate
of incorporation and by-laws and a written employment agreement (if any).

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          11.2 Stockholders' Rights. An Optionee shall have no dividend rights,
voting rights or other rights as a stockholder with respect to any shares of
Common Stock covered by his or her Option prior to the time when a stock
certificate for such shares of Common Stock is issued or, if applicable, the
time when he or she becomes entitled to receive such shares of Common Stock by
filing any required notice of exercise and paying any required Exercise Price.
No adjustment shall be made for cash dividends or other rights for which the
record date is prior to such time, except as expressly provided in the Plan.

          11.3 Regulatory Requirements. Any other provision of the Plan
notwithstanding, the obligation of the Corporation to issue shares of Common
Stock under the Plan shall be subject to all applicable laws, rules and
regulations and such approval by any regulatory body as may be required. The
Corporation reserves the right to restrict, in whole or in part, the delivery of
shares of Common Stock pursuant to any Option prior to the satisfaction of all
legal requirements relating to the issuance of such shares of Common Stock, to
their registration, qualification or listing or to an exemption from
registration, qualification or listing.

          ARTICLE 12. WITHHOLDING TAXES.

          12.1 General. To the extent required by applicable federal, state,
local or foreign law, an Optionee or his or her successor shall make
arrangements satisfactory to the Corporation for the satisfaction of any
withholding tax obligations that arise in connection with the Plan. The
Corporation shall not be required to issue any shares of Common Stock or make
any cash payment under the Plan until such obligations are satisfied.

          12.2 Share Withholding. The Committee may permit an Optionee to
satisfy all or part of his or her withholding or income tax obligations by
having the Corporation withhold all or a portion of any shares of Common Stock
that otherwise would be issued to him or her or by surrendering all or a portion
of any shares of Common Stock that he or she previously acquired. Such shares of
Common Stock shall be valued at their Fair Market Value on the date when taxes
otherwise would be withheld in cash.

          ARTICLE 13. FUTURE OF THE PLAN.

          13.1 Term of the Plan. The Plan, as set forth herein, shall become
effective as of July 1, 1999. The Plan shall remain in effect until it is
terminated under Section 13.2.

          13.2 Amendment or Termination. The Board may, at any time and for any
reason, amend or terminate the Plan. An amendment of the Plan shall be subject
to the approval of the Corporation's stockholders only to the extent required by
applicable laws, regulations or rules. No Options shall be granted under the
Plan after the termination thereof. The termination of the Plan, or any
amendment thereof, shall not affect any Option previously granted under the
Plan.

          ARTICLE 14. DEFINITIONS.

          14.1 "Affiliate" means any entity other than a Subsidiary, if the
Corporation and/or one or more Subsidiaries own not less than 50% of such
entity.

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     14.2 "Board" means the Corporation's Board of Directors, as constituted
from time to time.

     14.3 "Change in Control" shall mean:

          (a) The consummation of a merger or consolidation of the Corporation
     with or into another entity or any other corporate reorganization, if more
     than 50% of the combined voting power of the continuing or surviving
     entity's securities outstanding immediately after such merger,
     consolidation or other reorganization is owned by persons who were not
     stockholders of the Corporation immediately prior to such merger,
     consolidation or other reorganization;

          (b) The sale, transfer or other disposition of all or substantially
     all of the Corporation's assets;

          (c) A change in the composition of the Board, as a result of which
     fewer than two-thirds of the incumbent directors are directors who either
     (i) had been directors of the Corporation on the date 24 months prior to
     the date of the event that may constitute a Change in Control (the
     "original directors") or (ii) were elected, or nominated for election, to
     the Board with the affirmative votes of at least a majority of the
     aggregate of the original directors who were still in office at the time of
     the election or nomination and the directors whose election or nomination
     was previously so approved; or

          (d) Any transaction as a result of which any person is the "beneficial
     owner" (as defined in Rule 13d-3 under the Exchange Act), directly or
     indirectly, of securities of the Corporation representing at least 50% of
     the total voting power represented by the Corporation's then outstanding
     voting securities. For purposes of this Paragraph (d), the term "person"
     shall have the same meaning as when used in Sections 13(d) and 14(d) of the
     Exchange Act but shall exclude (i) a trustee or other fiduciary holding
     securities under an employee benefit plan of the Corporation or of a Parent
     or Subsidiary and (ii) a corporation owned directly or indirectly by the
     stockholders of the Corporation in substantially the same proportions as
     their ownership of the common stock of the Corporation.

A transaction shall not constitute a Change in Control if its sole purpose is to
change the state of the Corporation's incorporation or to create a holding
company that will be owned in substantially the same proportions by the persons
who held the Corporation's securities immediately before such transaction.

     14.4 "Code" means the Internal Revenue Code of 1986, as amended.

     14.5 "Committee" means a committee of the Board, as described in Article 2.

     14.6 "Common Stock" means the common stock of the Corporation.

     14.7 "Consultant" means a consultant or adviser who provides bona fide
services to the Corporation, a Parent, a Subsidiary or an Affiliate as an
independent contractor. Service as a

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Consultant shall be considered employment for all purposes of the Plan, except
as provided in Section 4.1.

     14.8  "Corporation" means Vignette Corporation, a Delaware corporation.

     14.9  "Employee" means a common-law employee of the Corporation, a Parent,
a Subsidiary or an Affiliate.

     14.10 "Exchange Act" means the Securities Exchange Act of 1934, as amended.

     14.11 "Exercise Price," means the amount for which one share of Common
Stock may be purchased upon exercise of such Option, as specified in the
applicable Stock Option Agreement.

     14.12 "Fair Market Value" means the market price of shares of Common Stock,
determined by the Committee in good faith on such basis as it deems appropriate.
Whenever possible, the determination of Fair Market Value by the Committee shall
be based on the prices reported in The Wall Street Journal. Such determination
shall be conclusive and binding on all persons.

     14.13 "Involuntary Termination" means the termination of the Service of any
individual which occurs by reason of:

          (a) such individual's involuntary dismissal or discharge by the
     Corporation for reasons other than Misconduct, or

          (b) 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
     bonus or incentive programs) 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.

     14.14 "Misconduct" means 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).

     14.15 "NSO" means a stock option not described in Sections 422 or 423 of
the Code.

     14.16 "Option" means an NSO granted under the Plan and entitling the holder
to purchase shares of Common Stock.

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     14.17 "Optionee" means an individual or estate who holds an Option.

     14.18 "Parent" means any corporation (other than the Corporation) in an
unbroken chain of corporations ending with the Corporation, if each of the
corporations other than the Corporation owns stock possessing 50% or more of the
total combined voting power of all classes of stock in one of the other
corporations in such chain. A corporation that attains the status of a Parent on
a date after the adoption of the Plan shall be considered a Parent commencing as
of such date.

     14.19 "Plan" means this Vignette Corporation 1999 Supplemental Stock Option
Plan, as amended from time to time.

     14.20 "Service" means, unless otherwise provided in the applicable Stock
Option Agreement, service to the Corporation, a Subsidiary, a Parent or an
Affiliate as an Employee, Consultant or member of the board of directors.

     14.21 "Stock Option Agreement" means the agreement between the Corporation
and an Optionee that contains the terms, conditions and restrictions pertaining
to his or her Option.

     14.22 "Subsidiary" means any corporation (other than the Corporation) in an
unbroken chain of corporations beginning with the Corporation, if each of the
corporations other than the last corporation in the unbroken chain owns stock
possessing 50% or more of the total combined voting power of all classes of
stock in one of the other corporations in such chain. A corporation that attains
the status of a Subsidiary on a date after the adoption of the Plan shall be
considered a Subsidiary commencing as of such date.

                                        9<PAGE>

                                                                   EXHIBIT 10.21

                              VIGNETTE CORPORATION
                          NOTICE OF STOCK OPTION GRANT

You have been granted the following option to purchase shares of the Common
Stock of Vignette Corporation (the "Corporation"):

     Name of Optionee:                 Michael Crosno

     Total Number of Shares:           1,850,000

     Type of Option:                   Nonstatutory Stock Option

     Exercise Price Per Share:         $1.3700

     Date of Grant:                    December 9, 2002

     Vesting Commencement Date:        December 2, 2002

     Vesting                           Schedule: This option becomes exercisable
                                       in equal increments. The first 25% of the
                                       Shares subject to this option shall
                                       become exercisable when you complete
                                       twelve (12) months of Service from the
                                       Vesting Commencement Date. An additional
                                       6.25% of the Shares subject to this
                                       option shall become exercisable when you
                                       complete each quarter of Service
                                       thereafter.

     Expiration                        Date: 8 years from Grant Date; however,
                                       this option will expire earlier if your
                                       Service terminates earlier, as described
                                       in the Stock Option Agreement.

Nothing in this Notice or in the Stock Option Agreement shall confer upon you
any right to continue in Service for any period of specific duration or
interfere with or otherwise restrict in any way your rights or the rights of the
Corporation (or any parent or subsidiary employing or retaining you), which
rights are hereby expressly reserved by each, to terminate your Service at any
time for any reason, with or without cause.

You further agree that the Corporation may deliver by email all documents
relating to this option (including, without limitation, prospectuses required by
the Securities and Exchange Commission) and all other documents that the
Corporation is required to deliver to its security holders (including, without
limitation, annual reports and proxy statements). You also agree that the
Corporation may deliver these documents by posting them on a web site maintained
by the Corporation or by a third party under contract with the Corporation. If
the Corporation posts these documents on a web site, it will notify you by
email.

By accepting this option, you and the Corporation agree that this option is
granted under and governed by the terms and conditions of the Stock Option
Agreement, which is attached to and made a part of this document.

OPTIONEE:                              VIGNETTE CORPORATION

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

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

<PAGE>

                              VIGNETTE CORPORATION
                             STOCK OPTION AGREEMENT

Tax Treatment       This option is intended to be an incentive stock option
                    under section 422 of the Internal Revenue Code or a
                    nonstatutory stock option, as provided in the Notice of
                    Stock Option Grant.

Vesting             This option becomes exercisable in installments, as shown in
                    the Notice of Stock Option Grant. In addition, this option
                    becomes exercisable in full if either of the following
                    events occurs:

                    o    Your Service (as defined below) terminates because of
                         death, or

                    o    The Corporation is subject to a "Change in Control" (as
                         defined below) before your Service terminates, and you
                         are subject to an "Involuntary Termination" (as defined
                         below) within 18 months after the Change in Control.

                    This option will in no event become exercisable for
                    additional shares after your service as an employee,
                    consultant or outside director of the Corporation or a
                    parent or subsidiary of the Corporation ("Service") has
                    terminated for any reason. It is intended that the exercise
                    schedule for this option is commensurate with a full-time
                    work schedule. For possible adjustments that may be made by
                    the Corporation, see the Section below entitled "Leaves of
                    Absence and Part-Time Work."

Change in Control   In the event of a Change in Control, then the vesting of
                    this option will automatically accelerate so that this
                    option will immediately before the effective date of the
                    Change in Control, become fully exercisable for all of the
                    shares of Common Stock at the time subject to this option
                    and may be exercised for any or all of those shares as
                    fully-vested shares of Common Stock. However, this option
                    will not so accelerate if and to the extent this option is,
                    in connection with the Change in Control, either to be
                    assumed by the successor corporation (or its parent) or to
                    be replaced with a comparable option for shares of the
                    capital stock of the successor corporation (or its parent).
                    The determination of option comparability will be made by
                    the Corporation's Board of Directors, and its determination
                    will be final, binding and conclusive.

                    Change in Control is defined in the Corporation's 1999
                    Equity Incentive Plan.

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Involuntary         If the option is assumed by the successor corporation (or
Termination         its parent) and you experience an Involuntary Termination
                    within eighteen months following a Change in Control, the
                    vesting of this option will automatically accelerate so that
                    this option will, immediately before the effective date of
                    the Involuntary Termination, become fully exercisable for
                    all of the shares of Common Stock at the time subject to
                    this option and may be exercised for any or all of those
                    shares as fully-vested shares of Common Stock.

                    Involuntary Termination is defined in the Corporation's 1999
                    Equity Incentive Plan.

Limitation on       This provision shall apply to you only if, on an after-tax
Acceleration        basis, you would receive more value under this Agreement
                    after the application of this provision than before the
                    application of this provision. For this purpose, "after-tax
                    basis" shall mean a calculation taking into account all
                    federal and state income and excise taxes imposed on you,
                    including (without limitation) the excise tax described in
                    section 4999 of the Internal Revenue Code (the "Code"). If
                    this provision is applicable, it shall supersede any
                    conflicting provision of this Agreement.

                    All calculations required by this provision shall be
                    performed by the independent auditors retained by the
                    Corporation most recently prior to the Change in Control
                    (the "Auditors"), based on information supplied by the
                    Corporation and you, and shall be binding on the Corporation
                    and you. All fees and expenses of the Auditors shall be paid
                    by the Corporation.

                    A reduction in the acceleration resulting from application
                    of the provisions of this Agreement relating to Change in
                    Control or Involuntary Termination shall be made if the
                    Auditors determine that on an after-tax basis, the value of
                    such acceleration would be greater after the application of
                    such a reduction.

                    If a reduction is to be effected, it will be applied as
                    follows: vesting shall not be accelerated with respect to
                    one or more shares under this Agreement until the reduced
                    number of shares would result in no portion of the
                    compensation payable to you being subject to excise tax
                    under Section 4999 of the Code; provided that you may
                    request that other parachute payments to be made to you by
                    the Company be reduced in lieu of a reduction in the
                    acceleration under this Agreement, but no change in the
                    timing of any payment or transfer shall be made without the
                    Corporation's consent. Section 18 of the Corporation's 1999
                    Equity Incentive Plan does not apply to this option.

                                       3

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Term                This option expires in any event at the close of business at
                    Corporation headquarters on the day before the 8th
                    anniversary of the Date of Grant, as shown in the Notice of
                    Stock Option Grant. (It may expire earlier if your Service
                    terminates, as described above.)

Regular             If your Service terminates for any reason except death,
Termination         Misconduct or Permanent Disability, then this option will
                    expire at the close of business at Corporation headquarters
                    on the date three (3) months after your termination date.
                    The Corporation determines when your Service terminates for
                    this purpose.

Death               If you die while this option is outstanding, then this
                    option will expire at the close of business at Corporation
                    headquarters on the date 12 months after the date of death.

Disability          If your Service terminates because of your Permanent
                    Disability, then this option will expire at the close of
                    business at Corporation headquarters on the date 12 months
                    after your termination date.

                    For all purposes under this Agreement, "Permanent
                    Disability" means that you are unable to engage in any
                    substantial gainful activity by reason of any medically
                    determinable physical or mental impairment which can be
                    expected to result in death or which has lasted, or can be
                    expected to last, for a continuous period of not less than
                    one year.

Leaves of Absence   For purposes of this option, your Service does not terminate
and Part-Time       when you go on a military leave, a sick leave or another
Work                bona fide leave of absence, if the leave was approved by the
                    Corporation in writing. Your Service terminates when the
                    approved leave ends, unless you immediately return to active
                    work.

                    If you go on a leave of absence that lasts or is expected to
                    last seven days or longer, then this option shall not become
                    exercisable for any additional shares and vesting will be
                    suspended during the leave to the extent provided for in the
                    Corporation's leave policy. Upon your return to active work,
                    vesting will resume; however, unless otherwise provided in
                    the Corporation's leave policy, you will not receive credit
                    for any vesting during the period of your leave.

                    If you and the Corporation agree to a reduction in your
                    scheduled work hours, then the Corporation reserves the
                    right to modify the rate at which this option becomes
                    exercisable or vests, so that the rate of vesting is
                    commensurate with your reduced work schedule. Any such
                    adjustment shall be consistent with the Corporation's
                    policies for part-time or reduced work schedules or shall be
                    pursuant to the terms of an agreement between you and the
                    Corporation pertaining to your reduced work schedule.

                                       4

<PAGE>

Misconduct          If your Service terminates for Misconduct, then this option
                    will terminate immediately and cease to be outstanding.
                    "Misconduct" includes fraud, embezzlement, dishonesty or any
                    unauthorized use or disclosure of confidential information
                    or trade secrets of the Corporation or any parent or
                    subsidiary or any other intentional misconduct adversely
                    affecting the business or affairs of the Corporation or a
                    parent or subsidiary of the Corporation.

Restrictions        on Exercise The Corporation will not permit you to exercise
                    this option if the issuance of shares at that time would
                    violate any law, regulation or corporate policy.

Notice of Exercise  When you wish to exercise this option, you must notify the
                    Corporation by filing the proper "Notice of Exercise" form
                    at the address given on the form. Your notice must specify
                    how many shares you wish to purchase. Your notice must also
                    specify how your shares should be registered. The notice
                    will be effective when the Corporation receives it.

                    If someone else wants to exercise this option after your
                    death, that person must prove to the Corporation's
                    satisfaction that he or she is entitled to do so.
                    Furthermore, in no event shall the Corporation's request for
                    satisfactory documentation in connection with an option
                    exercise extend the option's expiration date beyond the time
                    period specified in the above section entitled "Death."

Form of Payment     When you submit your notice of exercise, you must include
                    payment of the option exercise price for the shares that you
                    are purchasing. To the extent permitted by applicable law,
                    payment may be made in one (or a combination of two or more)
                    of the following forms:

                    o    Your personal check, a cashier's check or a money
                         order.

                    o    Certificates for shares of Corporation stock that you
                         own, along with any forms needed to effect a transfer
                         of those shares to the Corporation. The value of the
                         shares, determined as of the effective date of the
                         option exercise, will be applied to the option exercise
                         price. Instead of surrendering shares of Corporation
                         stock, you may attest to the ownership of those shares
                         on a form provided by the Corporation and have the same
                         number of shares subtracted from the option shares
                         issued to you. However, you may not surrender, or
                         attest to the ownership of, shares of Corporation stock
                         in payment of the exercise price if your action would
                         cause the Corporation to recognize compensation expense
                         (or additional compensation expense) with respect to
                         this option for financial reporting purposes.

                                       5

<PAGE>

                    o    Irrevocable directions to a securities broker approved
                         by the Corporation to sell all or part of your option
                         shares and to deliver to the Corporation from the sale
                         proceeds an amount sufficient to pay the option
                         exercise price and any withholding taxes. (The balance
                         of the sale proceeds, if any, will be delivered to
                         you.) The directions must be given by signing a special
                         "Notice of Exercise" form provided by the Corporation.
                         However, payment pursuant to this procedure shall not
                         be permitted if such payment would violate applicable
                         law or a policy of the Corporation.

                    o    Irrevocable directions to a securities broker or lender
                         approved by the Corporation to pledge option shares as
                         security for a loan and to deliver to the Corporation
                         from the loan proceeds an amount sufficient to pay the
                         option exercise price and any withholding taxes. The
                         directions must be given by signing a special "Notice
                         of Exercise" form provided by the Corporation. However,
                         payment pursuant to this procedure shall not be
                         permitted if such payment would violate applicable law
                         or a policy of the Corporation.

Withholding         You will not be allowed to exercise this option unless you
Taxes and Stock     make arrangements acceptable to the Corporation to pay any
Withholding         withholding taxes that may be due as a result of the option
                    exercise. With the Corporation's consent, these arrangements
                    may include withholding shares of Corporation stock that
                    otherwise would be issued to you when you exercise this
                    option. The value of these shares, determined as of the
                    effective date of the option exercise, will be applied to
                    the withholding taxes.

Restrictions        You agree not to sell any option shares at a time when
on Resale           applicable laws, regulations, Corporation trading policies
                    (including the Corporation's Insider Trading Policy, a copy
                    of which can be found on the Corporation's intranet) or an
                    agreement between the Corporation and its underwriters
                    prohibit a sale. This restriction will apply as long as your
                    Service continues and for such period of time after the
                    termination of your Service as the Corporation may specify.

Transfer            In general, only you may exercise this option prior to your
of Option           death. You may not transfer or assign this option, except as
                    provided below. For instance, you may not sell this option
                    or use it as security for a loan. If you attempt to do any
                    of these things, this option will immediate1ly become
                    invalid. You may, however, dispose of this option in your
                    will or in a beneficiary designation.

                                       6

<PAGE>

                    Regardless of any marital property settlement agreement, the
                    Corporation is not obligated to honor a notice of exercise
                    from your former spouse, nor is the Corporation obligated to
                    recognize your former spouse's interest in your option in
                    any other way.

                    If another person wants to exercise this option after it has
                    been transferred to him or her, including a transfer upon
                    your death, that person must prove to the Corporation's
                    satisfaction that he or she is entitled to exercise this
                    option. That person must also complete the proper "Notice of
                    Exercise" form (as described above) and pay the exercise
                    price (as described below).

Retention Rights    Your option or this Agreement does not give you the right to
                    be retained by the Corporation or a subsidiary of the
                    Corporation in any capacity. The Corporation and its
                    subsidiaries reserve the right to terminate your Service at
                    any time, with or without cause.

Stockholder         You, or your estate or heirs, have no rights as a
Rights              stockholder of the Corporation until you have exercised this
                    option by giving the required notice to the Corporation and
                    paying the exercise price. No adjustments are made for
                    dividends or other rights if the applicable record date
                    occurs before you exercise this option.

Adjustments         In the event of a stock split, a stock dividend or a similar
                    change in Common Stock, the number of shares covered by this
                    option and the exercise price per share may be adjusted
                    pursuant to the terms and conditions specified in Section
                    11.1 of the Corporation's 1999 Equity Incentive Plan.

Applicable Law      This Agreement will be interpreted and enforced with respect
                    to issues of contract law under the laws of the State of
                    Texas and with respect to issues of corporation law under
                    the laws of the State of Delaware.

Other Agreements    This Agreement constitutes the entire understanding between
                    you and the Corporation regarding this option. Any prior
                    agreements, commitments or negotiations concerning this
                    option are superseded. This Agreement may be amended only by
                    another written agreement, signed by both parties.

        BY SIGNING THE COVER SHEET OF THIS AGREEMENT, YOU AGREE TO ALL OF
                   THE TERMS AND CONDITIONS DESCRIBED ABOVE.

                                       7

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