Document:

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                                                                    EXHIBIT 10.9

                               EMPLOYEE AGREEMENT

This employment agreement is made this 18th day of December, 2004 by and between
UGS Corp., located at 5800 Granite Parkway, Plano, TX 75024, and David Shirk
("Shirk"), who resides at 9436 Big View Drive, Austin, TX 78730.

Whereas, UGS Corp. wishes to employ Shirk as Executive Vice President, Global
Business Strategy & Marketing; and

Whereas, Shirk acknowledges the importance of UGS Corp. (and any of its
affiliates) (the "Company") of protecting its confidential information and other
legitimate interests;

Now, therefore, in consideration of the parties' mutual promises and, in
particular, of Shirk's offer of employment by UGS, of his being granted access
to trade secrets and other confidential information of the Company, of the
Company's promise to provide not less than 30 days' notice, or pay in lieu of
notice, at Shirk's then-current base rate of pay, in the event the Company
initiates termination of his employment, and for other good and valuable
consideration, the receipt and sufficiency of which each party hereby
acknowledges, the Company and Shirk agree as follows:

1.    Position and Compensation

Shirk will serve as the Company's Executive Vice President, Global Business
Strategy & Marketing. His initial base annual salary will be $310,000 to be paid
in twenty-four (24) semimonthly payments. In addition to base salary, Shirk will
be eligible for an annual performance-based incentive opportunity equal to 70%
of his annual salary. Shirk will be eligible for an additional bonus amount if
the company exceeds it annual objectives. Shirk will also be granted 260,000
shares of UGS stock options. Furthermore, Shirk will have the opportunity to
participate in UGS benefit programs and paid vacation of four weeks per year.

Shirk will receive a sign-on bonus of $60,000 to be paid the first pay cycle
following his start date. He agrees to repay a prorated portion of this amount
if he voluntarily terminates his employment prior to 12 months employment with
UGS. Shirk will participate in the UGS executive relocation program with an
extension of the standard temporary living benefit of 90 days to a maximum of
270 days.

2.    Conduct of Employment

Shirk agrees that, during employment, he will devote his full business time and
his best efforts, business judgment, skill and knowledge exclusively to the
advancement of the business and interests of the Company and to the discharge of
his duties and responsibilities for it. He agrees to comply with all policies,
practices and procedures of the Company, as these may be changed by the Company
from time to time.

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3.    Involuntary Termination

In the event that Shirk's employment with UGS is involuntarily terminated within
two years of his hire date, for reason other than for "Cause", he will be
entitled to a lump sum amount equal to one annual base salary payable within 14
days of his separation. For the purpose of this agreement, "Cause" is defined as
(a) material breach of any agreement entered into between Shirk and UGS; (b)
gross negligence or willful misconduct in the performance of his duties and
responsibilities; (c) material failure or refusal to faithfully, diligently, and
competently perform the usual and customary duties associated with his position;
(d) material failure to follow UGS' policies, directives or orders applicable to
UGS employees holding comparable positions; (e) intentional destruction or theft
of UGS property or falsification of UGS documents; (f) conviction of a felony or
any crime involving moral turpitude; or (g) other neglect, misconduct or conduct
that is materially harmful to the operation, business, interest or reputation of
UGS, which neglect, if susceptible to cure, remains uncured after written notice
specifying such neglect, misconduct or conduct.

4.    Disclosure and Use of Confidential Information; Documents

      a.    "Confidential Information" means all information which has not been
            made public concerning the Company's business, including but not
            limited to: (a) all proprietary information of the Company,
            including but not limited to the products and services, technical
            data, methods, processes, know-how, developments, inventions, and
            formulae of the Company; (b) the development, research, testing,
            marketing and financial activities and strategic plans of the
            Company; (c) the costs and sources of supply of the Company's
            products and services; (d) the identity and needs of the customers,
            prospective customers and subcontractors of the Company, customer
            lists and customer and sales records, the identity of contacts at
            purchasers, any list of purchasers, and any list of sales
            transactions and/or prices charged by the Company); (e) the people
            and organizations with whom the Company has business relationships
            and the nature of those relationships; and (f) any information that
            the Company may receive or has received from customers,
            subcontractors, suppliers or others, with any understanding, express
            or implied, that the information would not be disclosed. Shirk
            agrees that all Confidential Information is and shall remain the
            sole and exclusive property of the Company and that, except as
            required for the proper performance of his regular duties for the
            Company, as expressly authorized in writing in advance by an officer
            of the Company or the designee of an officer, or as required by
            applicable law, he will never, directly or indirectly, use or
            disclose any Confidential Information. Shirk understands and agrees
            that this restriction shall continue to apply after the termination
            of his employment or this Agreement. He agrees to provide prompt
            notice to the Company of any required disclosure of Confidential
            Information sought pursuant to subpoena, court order or any other
            legal requirement and to provide the Company a reasonable
            opportunity to seek protection of the Confidential Information prior
            to any such disclosure.

      b.    Shirk agrees that all documents, records and files, in any media of
            whatever kind and description, relating to the business of the
            Company and any copies

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            (including without limitation electronic) (the "Documents" and each
            individually, a "Document"), whether or not prepared by him, shall
            be the sole and exclusive property of the Company, that he will not
            copy or remove any Documents, or copies, from the premises of the
            Company, except as required for the proper performance of his
            regular duties and that he will safeguard, and return to the Company
            immediately upon termination of his employment, and at such other
            times as may be specified by the Company, all Documents and all
            other property of the Company, and all documents, records and files
            of their customers, subcontractors and suppliers ("Third-Party
            Documents") and all other property of such customers, subcontractors
            and suppliers, then in his possession or control. He also agrees
            that, upon request of an officer of the Company, he will disclose
            all passwords pertinent to enable the Company to obtain access to
            the Documents and Third-Party Documents.

5.    Disclosure and Use of Intellectual Property

      a.    "Intellectual Property" means inventions, discoveries, developments,
            methods, processes, compositions, works (including software),
            designs, concepts, know-how and ideas (for all such items, whether
            or not patentable or copyrightable or constituting trade secrets)
            conceived, made, created, developed or reduced to practice by Shirk
            (in any case, whether alone or with others and whether or not during
            normal business hours or on or off Company premises) during his
            employment (including prior to this Agreement) that relate in any
            way to the business, products or services of the or to any
            prospective activity of the Company or which make use of the
            Confidential Information or of facilities or equipment of the
            Company. Shirk shall maintain accurate and complete contemporaneous
            records of, and shall immediately and fully disclose and deliver to
            the Company, all Intellectual Property. Shirk attaches hereto as
            Exhibit A a list describing all inventions, original works of
            authorship, developments, improvements, and trade secrets made by
            him prior to his employment with the Company, which belong to him
            and which are not assigned to the Company hereunder (collectively
            referred to as "Prior Inventions"); and, if no such list is
            attached, Shirk represents and warrants that there are no such Prior
            Inventions.

      b.    Shirk hereby assigns and agrees in the future to assign to the
            Company (or as otherwise directed by the Company) his full right,
            title and interest in and to all Intellectual Property. If he
            incorporates into any of the Intellectual Property any Prior
            Inventions, he hereby grants the Company an irrevocable, worldwide,
            fully paid-up, royalty-free, non-exclusive license, with the right
            to sublicense through multiple tiers, to make, use, sell, improve,
            reproduce, distribute, perform, display, transmit, manipulate in any
            manner, create derivative works based upon, and otherwise exploit or
            utilize in any manner the Prior Invention(s) included in the
            Intellectual Property. Shirk agrees to provide, at the Company's
            request, all further cooperation which the Company determines is
            necessary or desirable to accomplish the complete transfer of the
            Intellectual Property and all associated rights to the Company, its
            successors, assigns and nominees, including without limitation
            executing of any documents pertaining to the Intellectual Property.
            To

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            the extent that Shirk cannot assign and transfer any of his full
            right, title, and interest in the Intellectual Property then he
            hereby grants the Company an irrevocable, worldwide, fully paid-up,
            royalty-free, exclusive license, with the right to sublicense
            through multiple tiers, to make, use, sell, improve, reproduce,
            distribute, perform, display, transmit, manipulate in any manner,
            create derivative works based upon, and otherwise exploit or utilize
            in any manner the Intellectual Property.

      c.    Shirk agrees that all copyrightable works that he creates, including
            without limitation computer programs and documentation, shall be
            considered "work made for hire" and shall, upon creation, be owned
            exclusively by the Company.

      d.    Shirk further agrees that he will assign, deliver and communicate to
            the Company any know-how, facts and materials arising from or
            relating to said Intellectual Property including without limitation:
            (i) all simulations, prototypes, and other embodiments of the
            Intellectual Property; (ii) all drawings, blueprints, calculations,
            research plans and results, lab notes, workbooks and other records
            and written materials that relate to the Intellectual Property or
            that embody or record any know-how pertaining to the Intellectual
            Property; (iii) all files, documents and communications pertaining
            to the Intellectual Property; and (iv) evidence for patent
            interference purposes or for other legal proceedings whenever
            requested.

6.    Non-Competition

Shirk agrees that, during his employment and during the 12 month period
immediately following termination of his employment, he will not (a) provide
services, in any capacity, whether as an employee, independent contractor or
otherwise, whether with or without compensation for any of the following named
competitors of UGS: Dassault Systems; the part(s) of IBM that work directly with
Dassault Systems; Matrix One; PTC; Agile; SAP; Oracle; Baan; or to perform
duties anywhere in the world for any of the distributors or resellers of the
these named competitors' CAD and/or PLM software products and services; (b)
participate voluntarily with or provide assistance or information to any person
or entity that is involved in (i) negotiations with UGS involving a contract or
services to be rendered by UGS; or (ii) a potential or existing business or
legal dispute with UGS, including, but not limited to, litigation, except as may
be required by law.

7.    Non-Solicitation of Employees and Customers

      a.    Shirk acknowledges that his access to Confidential Information and
            to the Company's customers and his development of goodwill on behalf
            of the Company with its customers during his employment would give
            him an unfair competitive advantage were he to leave employment and
            begin competing with the Company or for its existing customers and
            that he therefore is being granted access to Confidential
            Information and the customers of the Company in reliance on his
            agreement hereunder. Shirk therefore agrees that, during his
            employment and for the period of 24 months immediately following
            termination (in the

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            aggregate, the "Non-Solicitation Period"), he will not solicit or
            encourage any customer of the Company to terminate or diminish its
            relationship with the Company and he will not seek to persuade any
            such customer to conduct with any individual or entity any business
            or activity which such customer conducts or could conduct with the
            Company.

      b.    Acknowledging the strong interest of the Company in an undisrupted
            workplace, Shirk agrees that, during the Non-Solicitation Period, he
            will not, and he will not assist any individual or entity to, (a)
            hire or solicit for hiring any employee of the Company or seek to
            persuade any employee of the Company to discontinue employment or
            (b) solicit or encourage any independent contractor providing
            services to the Company to terminate or diminish its relationship
            with the Company.

8.    Remedies and Enforcement

      a.    In signing this Agreement, Shirk acknowledges that he has carefully
            read and considered all the terms and conditions of this Agreement,
            that he agrees without reservation that each of the restraints
            contained herein is necessary for the reasonable and proper
            protection of the goodwill, Confidential Information and other
            legitimate interests of the Company in respect to subject matter,
            length of time and geographic area; and that these restraints will
            not prevent him from obtaining other suitable employment during the
            period in which he is bound by these restraints. He also
            acknowledges and agrees that, were he to breach any of the
            provisions of this Agreement, the harm to the Company would be
            irreparable. He therefore agrees that in the event of such a breach
            or threatened breach the Company shall, in addition to any other
            remedies available to them, have the right to obtain preliminary and
            permanent injunctive relief against any such breach without having
            to post bond. He further agrees that, in the event that any
            provision of this Agreement shall be determined by any court of
            competent jurisdiction to be unenforceable by reason of its being
            extended over too great a time, too large a geographic area or too
            great a range of activities, such provision shall be deemed to be
            modified to permit its enforcement to the maximum extent permitted
            by law.

      b.    In the event of any alleged breach of this Agreement, I hereby
            consent and submit to the jurisdiction of the federal and state
            courts in and of the state of Texas and, if different, of the
            federal and state courts in and of the state in which I am then
            employed. I agree to accept service of process by registered or
            certified mail or the equivalent directed to his last known address
            on the books of the Company or by whatever other means are permitted
            by such court.

9.    Duties to Previous Employers

Shirk will not disclose to, or use on behalf of the Company, or induce the
Company to use, any proprietary information of any previous employer of his or
other third party without that party's consent.

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10.   Entire Agreement

This Agreement sets forth the entire agreement between Shirk and the Company and
this Agreement shall be in addition to, and shall not terminate or supersede,
any additional obligations Shirk may have pursuant to any prior employment
agreements or other non-disclosure agreements or under applicable law with
respect to confidentiality, non-competition, assignment of rights to
intellectual property or the like. In the event of conflict between this
Agreement and any prior agreement between Shirk and the Company, this Agreement
shall govern. No deletion, addition, marking, notation or the like change to the
body of this Agreement shall be of any force or effect and this Agreement shall
be interpreted as if such change had not been made. This Agreement may not be
modified or amended, and no breach shall be deemed to be waived, unless agreed
to in writing by me and an expressly authorized officer of the Company. If any
provision of this Agreement should, for any reason, be held invalid or
unenforceable in any respect, it shall not affect any other provisions, and
shall be construed by limiting it so as to be enforceable to the maximum extent
permissible by law. Provisions of this Agreement shall survive any termination
if so provided in this Agreement or if necessary or desirable to accomplish the
purpose of other surviving provisions.

11.   Assignment

Neither the Company nor Shirk may make any assignment of this Agreement or any
interest in it, by operation of law or otherwise, without the prior written
consent of the other; provided, however, that the Company may assign its rights
and obligations under this Agreement without his consent in the event that the
Company shall hereafter affect a reorganization, consolidate with, or merge into
any entity or transfer to any entity all or substantially all of the business,
properties or assets of the Company or of any division or line of business of
the Company with which Shirk is at any time associated. This Agreement shall
inure to the benefit of and be binding upon Shirk and the Company, and each of
their respective successors, executors, administrators, heirs, representatives
and permitted assigns.

12.   Employment Relationship

Shirk acknowledges and agrees that, except as otherwise provided specifically
herein, this Agreement does not in any way restrict his right or that of the
Company to terminate his employment.

13.   Governing Law

This agreement shall be governed by and construed in accordance with the laws of
Texas, without regard to the conflict of laws principles thereof.

14.   Signatures

Shirk assures the Company that he has read and understood all of the terms of
this Agreement; that he has had a full and reasonable opportunity to consider
its terms and to consult with any person of his choosing before signing; that he
has not relied on any agreements or representations, express or implied, that
are not set forth expressly in this Agreement; and that he

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signs this Agreement knowingly and voluntarily. Intending to be legally bound
hereby, each party signs this Agreement as of the day and year written below.

                                                    Signature: /s/ David Shirk
                                                              ------------------

                                                    Printed Name: David Shirk
                                                    Date: 20 Dec. 2004

Accepted and agreed:

UGS CORP.

By:______________________________

Title:___________________________

Date:____________________________

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                                    EXHIBIT A

           LIST OF PRIOR INVENTIONS AND ORIGINAL WORKS OF AUTHORSHIP
<TABLE>
<CAPTION>
                                        IDENTIFYING NUMBER
TITLE           DATE                   OR BRIEF DESCRIPTION
-----           ----                   --------------------
<S>             <C>                    <C>
None
</TABLE>

Signature of David Shirk:  /s/ David Shirk
                         -----------------
Date: 20 Dec. 2004<PAGE>
                                                                   EXHIBIT 10.10

April 26, 2004

Mr. Douglas E. Barnett
8730 Stony Point Parkway
Suite 150
Richmond, VA 23235

Dear Doug:

On behalf of UGS PLM Solutions, I am pleased to extend you an offer to join the
UGS PLM Solutions Finance organization as Senior Vice President and Chief
Financial Officer. I believe this offer provides you with a unique opportunity
to further develop your professional career and to contribute significantly to
the future of UGS PLM Solutions. Based on our conversations, your start date is
expected to be May 3, 2004.

Your initial base annual salary will be $310,000 to be paid in twenty-four (24)
semimonthly payments. In addition to your base salary, you will be eligible for
an annual performance-based incentive opportunity equal to 80% (not pro-rated
for 2004) of your annual base salary. Furthermore, you will have the opportunity
to participate in UGS PLM Solutions benefits. You are entitled to four weeks of
paid vacation per year.

Should you decide to accept UGS PLM Solutions offer of employment, please be
advised that UGS PLM Solutions Code of Business Conduct requires you to honor
any agreements you have with your previous employers, including obligations
regarding the disclosure or use of proprietary information.

Along with this letter you will receive information regarding the EDS employee
relocation policy. This policy will be adapted to UGS PLM Solutions following
the UGS PLM sale.

As we discussed, UGS PLM Solutions offer of employment is contingent upon
passing the UGS PLM Solutions standard employment practices, including a
Background Investigation and Drug Screening, as well as execution of the EDS
Code of Business Conduct.

As a U.S. employer, UGS PLM Solutions is required by law to review required
documentation verifying your identity and authorization to work in the United
States. This documentation must be available at the time of your employment
start date.

Please understand nothing in this letter alters the at-will nature of your
employment relationship with UGS PLM Solutions. In that regard, either you or
UGS PLM Solutions may terminate your employment at any time, for any reason,
with or without notice.

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Please indicate your acceptance of the terms set forth in this letter by signing
and returning it and the other enclosed hiring documents to:

                              Dan Malliet
                              2321 North Loop Drive
                              Ames, Iowa 50010-8615

If you need any additional information about UGS PLM Solutions or this offer of
employment please contact Dan Malliet at 515.296.8050 or me directly at
972.797.2056.

I believe UGS PLM Solutions can offer you opportunities and challenges that will
be professionally rewarding and mutually satisfying. I am enthusiastic about
having you as a valued member of our executive team.

Sincerely,

/s/ Tony Affuso

Tony Affuso
President & CEO

PWO/srb
Enclosures

I ACCEPT THE TERMS OF EMPLOYMENT OUTLINED IN THIS LETTER.

     /s/ Douglas E. Barnett                                        4/29/04
---------------------------------                             -----------------
Candidate Signature                                           Date

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