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                                                                   EXHIBIT 10.13

                              INVENTA CORPORATION

                   EMPLOYMENT, CONFIDENTIAL INFORMATION AND

                        INVENTION ASSIGNMENT AGREEMENT

     As a condition of my employment with Inventa Corporation, its subsidiaries,
affiliates, successors or assigns (the "Company"), and in consideration of my
employment with the Company and my receipt of the compensation now and hereafter
paid to me by the Company, I agree to the following:

          (a)  At-Will Employment.  I understand and acknowledge that my
               ------------------
employment with the Company is for an unspecified duration and constitutes
"at-will" employment. I acknowledge that this employment relationship may be
terminated at any time, with or without good cause or for any or no cause, at
the option either of the Company or myself, with or without notice.

          (b)  Confidential Information.
               ------------------------

               (i)   Company Information.  I agree at all times during the term
                     -------------------
of my employment and thereafter, to hold in strictest confidence, and not to
use, except for the benefit of the Company, or to disclose to any person, firm
or corporation without written authorization of the Board of Directors of the
Company, any Confidential Information of the Company. I understand that
"Confidential Information" means any of the Company's proprietary information,
technical data, trade secrets or know-how, including, but not limited to,
research, product plans, products, services, customer lists and customers
(including, but not limited to, customers of the Company on whom I called or
with whom I became acquainted during the term of my employment), markets,
software, developments, inventions, processes, formulas, technology, designs,
drawings, engineering, hardware configuration information, marketing, finances
or other business information disclosed to me by the Company either directly or
indirectly in writing, orally or by drawings or observation of parts or
equipment. I further understand that Confidential Information does not include
any of the foregoing items which has become publicly known and made generally
available through no wrongful act of mine or of others who were under
confidentiality obligations as to the item or items involved.

               (ii)  Former Employer Information.  I agree that I will not,
                     ---------------------------
during my employment with the Company, improperly use or disclose any
proprietary information or trade secrets of any former or concurrent employer or
other person or entity and that I will not bring onto the premises of the
Company any unpublished document or proprietary information belonging to any
such employer, person or entity unless consented to in writing by such employer,
person or entity.

               (iii) Third Party Information.  I recognize that the Company has
                     -----------------------
received and in the future will receive from third parties their confidential or
proprietary information subject to
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a duty on the Company's part to maintain the confidentiality of such information
and to use it only for certain limited purposes. I agree to hold all such
confidential or proprietary information in the strictest confidence and not to
disclose it to any person, firm or corporation or to use it except as necessary
in carrying out my work for the Company consistent with the Company's agreement
with such third party.

          (c)  Inventions.
               ----------

               (i)   Inventions Retained and Licensed.  I have attached hereto,
                     --------------------------------
 as Exhibit A, a list describing all inventions, original works of authorship,
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developments, improvements, and trade secrets which were made by me prior to my
employment with the Company (collectively referred to as "Prior Inventions"),
which belong to me, which relate to the Company's proposed business, products or
research and development, and which are not assigned to the Company hereunder;
or, if no such list is attached, I represent that there are no such Prior
Inventions.  If in the course of my employment with the Company, I incorporate
into a the Company product, process or machine a Prior Invention owned by me or
in which I have an interest, the Company is hereby granted and shall have a
nonexclusive, royalty-free, irrevocable, perpetual, worldwide license to make,
have made, modify, use and sell such Prior Invention as part of or in connection
with such product, process or machine.

               (ii)  Assignment of Inventions.  I agree that I will promptly
                     ------------------------
make full written disclosure to the Company, will hold in trust for the sole
right and benefit of the Company, and hereby assign to the Company, or its
designee, all my right, title, and interest in and to any and all inventions,
original works of authorship, developments, concepts, improvements or trade
secrets, whether or not patentable or registrable under copyright or similar
laws, which I may solely or jointly conceive or develop or reduce to practice,
or cause to be conceived or developed or reduced to practice, during the period
of time I am in the employ of the Company (collectively referred to as
"Inventions"), except as provided in Section 3(f) below. I further acknowledge
that all original works of authorship which are made by me (solely or jointly
with others) within the scope of and during the period of my employment with the
Company and which are protectible by copyright are "works made for hire," as
that term is defined in the United States Copyright Act.

               (iii) Inventions Assigned to the United States.  I agree to
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assign to the United States government all my right, title, and interest in and
to any and all Inventions whenever such full title is required to be in the
United States by a contract between the Company and the United States or any of
its agencies.

               (iv)  Maintenance of Records.  I agree to keep and maintain
                     ----------------------
adequate and current written records of all Inventions made by me (solely or
jointly with others) during the term of my employment with the Company. The
records will be in the form of notes, sketches, drawings, and any other format
that may be specified by the Company. The records will be available to and
remain the sole property of the Company at all times.

               (v)   Patent and Copyright Registrations.  I agree to assist the
                     ----------------------------------
Company, or its designee, at the Company's expense, in every proper way to
secure the Company's rights in the

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Inventions and any copyrights, patents, mask work rights or other intellectual
property rights relating thereto in any and all countries, including the
disclosure to the Company of all pertinent information and data with respect
thereto, the execution of all applications, specifications, oaths, assignments
and all other instruments which the Company shall deem necessary in order to
apply for and obtain such rights and in order to assign and convey to the
Company, its successors, assigns, and nominees the sole and exclusive rights,
title and interest in and to such Inventions, and any copyrights, patents, mask
work rights or other intellectual property rights relating thereto. I further
agree that my obligation to execute or cause to be executed, when it is in my
power to do so, any such instrument or papers shall continue after the
termination of this Agreement. If the Company is unable because of my mental or
physical incapacity or for any other reason to secure my signature to apply for
or to pursue any application for any United States or foreign patents or
copyright registrations covering Inventions or original works of authorship
assigned to the Company as above, then I hereby irrevocably designate and
appoint the Company and its duly authorized officers and agents as my agent and
attorney in fact, to act for and in my behalf and stead to execute and file any
such applications and to do all other lawfully permitted acts to further the
prosecution and issuance of letters patent or copyright registrations thereon
with the same legal force and effect as if executed by me.

               (vi) Exception to Assignments.  I understand that the provisions
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of this Agreement requiring assignment of Inventions to the Company do not apply
to any invention which qualifies fully under the provisions of California Labor
Code Section 2870 (attached hereto as Exhibit B). I will advise the Company
                                      ---------
promptly in writing of any inventions that I believe meet the criteria in
California Labor Code Section 2870 and not otherwise disclosed on Exhibit A.
                                                                  ---------

          (d)  Conflicting Employment.  I agree that, during the term of my
               ----------------------
employment with the Company, I will not engage in any other employment,
occupation, consulting or other business activity directly related to the
business in which the Company is now involved or becomes involved during the
term of my employment, nor will I engage in any other activities that conflict
with my obligations to the Company.

          (e)  Returning the Company Documents.  I agree that, at the time of
               -------------------------------
leaving the employ of the Company, I will deliver to the Company (and will not
keep in my possession, recreate or deliver to anyone else) any and all devices,
records, data, notes, reports, proposals, lists, correspondence, specifications,
drawings blueprints, sketches, materials, equipment, other documents or
property, or reproductions of any aforementioned items developed by me pursuant
to my employment with the Company or otherwise belonging to the Company, its
successors or assigns.  In the event of the termination of my employment, I
agree to sign and deliver the "Termination Certification" attached hereto as
Exhibit C.
---------

          (f)  Notification of New Employer.  In the event that I leave the
               ----------------------------
employ of the Company, I hereby grant consent to notification by the Company to
my new employer about my rights and obligations under this Agreement.

          (g)  Solicitation of Employees.  I agree that for a period of twelve
               -------------------------
(12) months immediately following the termination of my relationship with the
Company for any reason, whether

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with or without cause, I shall not either directly or indirectly solicit,
induce, recruit or encourage any of the Company's employees to leave their
employment, or take away such employees, or attempt to solicit, induce, recruit,
encourage or take away employees of the Company, either for myself or for any
other person or entity.

          (h)  Conflict of Interest Guidelines.  I agree to diligently adhere to
               -------------------------------
the Conflict of Interest Guidelines attached as Exhibit D hereto.
                                                ---------

          (i)  Representations. I agree to execute any proper oath or verify any
               ---------------
proper document required to carry out the terms of this Agreement.  I represent
that my performance of all the terms of this Agreement will not breach any
agreement to keep in confidence proprietary information acquired by me in
confidence or in trust prior to my employment by the Company.  I have not
entered into, and I agree I will not enter into, any oral or written agreement
in conflict herewith.

          (j)  Arbitration and Equitable Relief.
               --------------------------------

               (i)  Arbitration.  Except as provided in Section 10(b) below, I
                    -----------
agree that any dispute or controversy arising out of or relating to any
interpretation, construction, performance or breach of this Agreement, shall be
settled by arbitration to be held in San Francisco County, California, in
accordance with the rules then in effect of the American Arbitration
Association.  The arbitrator may grant injunctions or other relief in such
dispute or controversy.  The decision of the arbitrator shall be final,
conclusive and binding on the parties to the arbitration.  Judgment may be
entered on the arbitrator's decision in any court having jurisdiction.  The
Company and I shall each pay one-half of the costs and expenses of such
arbitration, and each of us shall separately pay our counsel fees and expenses.

               (ii) Equitable Remedies.  I agree that it would be impossible or
                    ------------------
inadequate to measure and calculate the Company's damages from any breach of the
covenants set forth in Sections 2, 3, and 5 herein.  Accordingly, I agree that
if I breach any of such Sections, the Company will have available, in addition
to any other right or remedy available, the right to obtain an injunction from a
court of competent jurisdiction restraining such breach or threatened breach and
to specific performance of any such provision of this Agreement.  I further
agree that no bond or other security shall be required in obtaining such
equitable relief and I hereby consent to the issuance of such injunction and to
the ordering of specific performance.

          (k)  General Provisions.
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               (i)  Governing Law; Consent to Personal Jurisdiction.  This
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Agreement will be governed by the laws of the State of California. I hereby
expressly consent to the personal jurisdiction of the state and federal courts
located in California for any lawsuit filed there against me by the Company
arising from or relating to this Agreement.

               (ii) Entire Agreement.  This Agreement sets forth the entire
                    ----------------
agreement and understanding between the Company and me relating to the subject
matter herein and merges all prior discussions between us. No modification of or
amendment to this Agreement, nor any waiver of

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any rights under this agreement, will be effective unless in writing signed by
the party to be charged. Any subsequent change or changes in my duties, salary
or compensation will not affect the validity or scope of this Agreement.

               (iii) Severability.  If one or more of the provisions in this
                     ------------
Agreement are deemed void by law, then the remaining provisions will continue in
full force and effect.

               (iv)  Successors and Assigns.  This Agreement will be binding
                     ----------------------
upon my heirs, executors, administrators and other legal representatives and
will be for the benefit of the Company, its successors, and its assigns.

     Date: _________________


                                             ___________________________________
                                             Signature

                                             ___________________________________
                                             Name of Employee (typed or printed)

     _______________________
     Witness

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                                   EXHIBIT A
                                   ---------

                           LIST OF PRIOR INVENTIONS

                       AND ORIGINAL WORKS OF AUTHORSHIP

     Identifying Number

     Title               Date                           or Brief Description
     -----------------------------------------------------------------------

     ____ No inventions or improvements

     ____ Additional Sheets Attached

     Signature of Employee: __________________________

     Print Name of Employee: _________________________

     Date: _________________

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                                   EXHIBIT B
                                   ---------

                      CALIFORNIA LABOR CODE SECTION 2870

                  EMPLOYMENT AGREEMENTS; ASSIGNMENT OF RIGHTS

          (l)  "Any provision in an employment agreement which provides that an
employee shall assign, or offer to assign, any of his or her rights in an
invention to his or her employer shall not apply to an invention that the
employee developed entirely on his or her own time without using the employer's
equipment, supplies, facilities, or trade secret information except for those
inventions that either:

               (i)  Relate at the time of conception or reduction to practice of
the invention to the employer's business, or actual or demonstrably anticipated
research or development of the employer.

               (ii) Result from any work performed by the employee for the
employer.

          (m)  To the extent a provision in an employment agreement purports to
require an employee to assign an invention otherwise excluded from being
required to be assigned under subdivision (a), the provision is against the
public policy of this state and is unenforceable."

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                                   EXHIBIT C
                                   ---------

                              INVENTA CORPORATION

                           TERMINATION CERTIFICATION

     This is to certify that I do not have in my possession, nor have I failed
to return, any devices, records, data, notes, reports, proposals, lists,
correspondence, specifications, drawings, blueprints, sketches, materials,
equipment, other documents or property, or reproductions of any aforementioned
items belonging to the Company, its subsidiaries, affiliates, successors or
assigns (the "Company").

     I further certify that I have complied with all the terms of the Company's
Employment Confidential Information and Invention Assignment Agreement signed by
me, including the reporting of any inventions and original works of authorship
(as defined therein), conceived or made by me (solely or jointly with others)
covered by that agreement.

     I further agree that, in compliance with the Employment, Confidential
Information and Invention Assignment Agreement, I will preserve as confidential
all trade secrets, confidential knowledge, data or other proprietary information
relating to products, processes, know-how, designs, formulas, developmental or
experimental work, computer programs, data bases, other original works of
authorship, customer lists, business plans, financial information or other
subject matter pertaining to any business of the Company or any of its
employees, clients, consultants or licensees.

     I further agree that for twelve (12) months from this date, I will not hire
any employees of the Company and I will not solicit, induce, recruit or
encourage any of the Company's employees to leave their employment.

     Date: ___________________                    ______________________________
                                                  (Employee's Signature)


                                                  ______________________________
                                                  (Type/Print Employee's Name)

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                                   EXHIBIT D
                                   ---------

                              INVENTA CORPORATION

                        CONFLICT OF INTEREST GUIDELINES

     It is the policy of the Company to conduct its affairs in strict compliance
with the letter and spirit of the law and to adhere to the highest principles of
business ethics. Accordingly, all officers, employees and independent
contractors must avoid activities which are in conflict, or give the appearance
of being in conflict, with these principles and with the interests of the
Company. The following are potentially compromising situations which must be
avoided. Any exceptions must be reported to the President and written approval
for continuation must be obtained.

          (n)  Revealing confidential information to outsiders or misusing
confidential information.  Unauthorized divulging of information is a violation
of this policy whether or not for personal gain and whether or not harm to the
Company is intended.  (The Employment, Confidential Information and Invention
Assignment Agreement elaborates on this principle and is a binding agreement.)

          (o)  Accepting or offering substantial gifts, excessive entertainment,
favors or payments which may be deemed to constitute undue influence or
otherwise be improper or embarrassing to the Company.

          (p)  Participating in civic or professional organizations that might
involve divulging confidential information of the Company.

          (q)  Initiating or approving personnel actions affecting reward or
punishment of employees or applicants where there is a family relationship or is
or appears to be a personal or social involvement.

          (r)  Initiating or approving any form of personal or social harassment
of employees.

          (s)  Investing or holding outside directorship in suppliers,
customers, or competing companies, including financial speculations, where such
investment or directorship might influence in any manner a decision or course of
action of the Company.

          (t)  Borrowing from or lending to employees, customers or suppliers.

          (u)  Acquiring real estate of interest to the Company.

          (v)  Improperly using or disclosing to the Company any proprietary
information or trade secrets of any former or concurrent employer or other
person or entity with whom obligations of confidentiality exist.

          (w)  Unlawfully discussing prices, costs, customers, sales or markets
with competing companies or their employees.

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          (x)  Making any unlawful agreement with distributors with respect to
prices.

          (y)  Improperly using or authorizing the use of any inventions which
are the subject of patent claims of any other person or entity.

          (z)  Engaging in any conduct which is not in the best interest of the
Company.

     Each officer, employee and independent contractor must take every necessary
action to ensure compliance with these guidelines and to bring problem areas to
the attention of higher management for review. Violations of this conflict of
interest policy may result in discharge without warning.

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