Document:

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                                                                     Exhibit 4.4

                             INTEGRAL SYSTEMS, INC.
                             ----------------------
                             2002 STOCK OPTION PLAN
                             ----------------------
                           Effective as of May 1, 2002

                                    ARTICLE I
                                    ---------
                                 PURPOSE OF PLAN
                                 ---------------

1.1  PURPOSE OF PLAN. The purpose of the Stock Option Plan is to serve as a
performance incentive and to encourage the ownership of Common Stock by
officers, directors, other employees and non-employee consultants of the Company
so that the person to whom the option is granted may acquire a proprietary
interest in the success of the Company, and to encourage such person to remain
in the employ of the Company. This Plan shall consist of grants of incentive
stock options, which are intended to qualify under section 422 of the Internal
Revenue Code of 1986, as amended, and of options which are intended not to so
qualify.

                                   ARTICLE II
                                   ----------
                                   DEFINITIONS
                                   -----------

2.1  AWARD means Options granted hereunder.

2.2  BOARD means the Board of Directors of Integral Systems, Inc.

2.3  CODE means the Internal Revenue Code of 1986, as amended. Reference in this
Plan to any section of the Code shall be deemed to include any amendments or
successor provisions to such section and any regulations promulgated thereunder.

2.4  COMMITTEE means, as designated by the Board, either the full Board of
Directors or a committee of the Board which shall consist solely of two or more
members of the Board who are "Non-Employee Directors" within the meaning of Rule
16b-3 under the Securities Exchange Act of 1934, as amended, and "Outside
Directors" within the meaning of Code Section 162(m).

2.5  COMPANY means Integral Systems, Inc. or any successors as described in
Article XI and any subsidiary of the Company of which the Company owns, directly
or indirectly, greater than fifty percent (50%) of its voting capital stock.

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2.6  DATE OF DISABILITY means the date on which a Participant is classified
Disabled.

2.7  DISABILITY or DISABLED means the classification of a Participant as
"Disabled" pursuant to a long-term disability plan of the Company, if any, or
successor to such plan (or, if there is no such plan, as determined by the
Committee), provided that Participant meets the requirements of section 22(e)(3)
of the Code.

2.8  EFFECTIVE DATE means May 1, 2002.

2.9  ELIGIBLE EMPLOYEE means any person employed by the Company who satisfies
all of the requirements of Article VI.

2.10 ELIGIBLE NON-EMPLOYEE means any person performing bona fide services for
the Company in a capacity other than as an employee, such as a non-employee
director or consultant.

2.11 FAIR MARKET VALUE means, with respect to the fair market value of the Stock
on any date, the last sale price reported for the Stock on a national securities
exchange or on the NASDAQ system on such date or, if no sales of the Stock are
reported on such date (even though the Stock is then traded on a national
securities exchange or NASDAQ), on the next preceding date on which a sale was
reported, or such other price as determined in good faith by the Committee
consistent with governing rules and regulations.

2.12 INCENTIVE STOCK OPTION means an Option which is an "incentive stock option"
within the meaning of section 422 of the Code and which is granted under Article
VII.

2.13 INSIDER means an "officer" or "director" of the Company within the meaning
of Section 16 of the Securities Exchange Act of 1934, as amended.

2.14 NON-QUALIFIED STOCK OPTION means an Option which is not an Incentive Stock
Option and which is granted under Article VII.

2.15 OPTION means either a Non-Qualified Stock Option or an Incentive Stock
Option granted under Article VII.

2.16 PARTICIPANT means an Eligible Employee or Eligible Non-Employee who has
been granted an Award under this Plan.

2.17 PLAN means the Integral Systems, Inc. 2002 Stock Option Plan, as amended
and restated as set forth herein.

2.18 RETIREMENT means the normal retirement by an employee from the Company
under a pension or retirement plan maintained by the Company.

                                      -2-

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2.19 RETIREMENT DATE is the employee's date of Retirement from the Company.

2.20 STOCK means Common Stock of Integral Systems, Inc., par value $.01 per
share.

2.21 STOCK OPTION AGREEMENT means an agreement with respect to Options, as
described in Article VIII.

2.22 TERMINATION means resignation or discharge from employment with the
Company, except in the event of death, Disability or Retirement.

2.23 VESTED OPTION means, at any date, an Option which a Participant is then
entitled to exercise pursuant to the terms of the Plan and an applicable Stock
Option Agreement.

                                   ARTICLE III
                                   -----------

                           EFFECTIVE DATE AND DURATION
                           ---------------------------

3.1  EFFECTIVE DATE. Subject to the approval by a majority of the holders of
Stock voted, in person or by proxy, at the 2002 Annual Meeting of Stockholders
of the Company, this Plan shall be effective as of the Effective Date.

3.2  PERIOD FOR GRANTS OF AWARDS. Awards may be made as provided herein for a
period of ten (10) years after the Effective Date but not after the Plan's
termination date.

3.3  TERMINATION. This Plan may be terminated as provided in Article XII, but
shall continue in effect until all matters relating to the payment of the Awards
and the administration of the Plan have been settled.

                                   ARTICLE IV
                                   ----------

                                 ADMINISTRATION
                                 --------------

4.1  ADMINISTRATION. Except where this Plan expressly reserves administrative or
other powers to the Company or the Board, this Plan shall be administered by the
Committee. All questions or interpretation and application of this Plan, or of
the terms and conditions pursuant to which Awards are granted, exercised or
forfeited under the provisions hereof, shall be subject to the determination of
the Committee. Such determination shall be final and binding upon all parties
affected thereby.

     It is contemplated that Awards granted hereunder will be recommended by the
management of the Company or the Board to the Committee, and that the Committee
will determine whether to accept such recommendations.

                                      -3-

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                                    ARTICLE V
                                    ---------

                       GRANT OF AWARDS AND LIMITATION OF
                       ---------------------------------
                        NUMBER OF SHARES OF STOCK AWARDED
                        ---------------------------------

5.1  GRANTS OF AWARDS; NUMBER OF SHARES. The Committee may, from time to time,
grant Awards of Options to one or more Eligible Employees or Eligible
Non-Employees in its discretion; provided, however, that:

     (i)   subject to any adjustment pursuant to Article X or Article XI, the
aggregate number of shares of Stock subject to Awards under this Plan may not
exceed Seven Hundred Fifty Thousand (750,000) shares of Stock;

     (ii)  to the extent that an Award lapses or the rights of the Participant
to whom it was granted terminate, or to the extent that the Award is canceled by
mutual agreement of the Committee and the Participant (which cancellation
opportunities may be offered by the Committee to Participants from time to
time), any shares of Stock subject to such Award shall again be available for
the grant of an Award hereunder;

     (iii) shares of Stock ceasing to be subject to an Award because of the
exercise of an Option shall no longer be available for the grant of an Award
hereunder; and

     (iv) Eligible Non-Employees shall not be entitled to receive Awards of
Incentive Stock Options.

          In determining the size of Awards, the Committee may take into account
recommendations by the Board or the Company's management, a Participant's
responsibility level, performance, potential, and cash compensation level, the
Fair Market value of the Stock at the time of Awards and such other
considerations as it deems appropriate.

          The maximum number of shares of Stock subject to Options that may be
granted during any one calendar year to any one individual shall be limited to
50,000. To the extent required by Code Section 162(m), and so long as Section
162(m) of the Code is applicable to persons eligible to participate in the Plan,
shares of Stock subject to the foregoing limit with respect to which the related
Option is terminated, surrendered or canceled shall not again be available for
grant to the respective grantee under this limit.

                                   ARTICLE VI
                                   ----------

                                   ELIGIBILITY
                                   -----------

6.1  ELIGIBLE INDIVIDUALS.  All Eligible Employees and Eligible Non-Employees
shall be eligible to receive  Awards  hereunder. Subject to the provisions of
this Plan, the

                                      -4-

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Committee shall from time to time select from such Eligible Employees and
Eligible Non-Employees those to whom Awards shall be granted and determine the
size of the Awards. A Participant may hold more than one Option at any one time.
No person shall have any right to be granted an Award under this Plan, as all
Awards granted hereunder are granted in the sole and absolute discretion of the
Committee, as provided herein.

                                   ARTICLE VII
                                   -----------

                                     OPTIONS
                                     -------

7.1  GRANTS OF OPTIONS.  Awards shall be granted to Participants in the form of
Options to purchase Stock.

7.2  TYPE OF OPTIONS. The Committee may choose to grant a Participant who is an
Eligible Employee either Incentive Stock Options or Non-Qualified Stock Options
or both, subject to the limitations contained herein, and shall designate the
Option as such in the grant agreement. The Committee shall grant to a
Participant who is an Eligible Non-Employee only Non-Qualified Stock Options,
subject to the limitations contained herein.

7.3  INCENTIVE STOCK OPTION DOLLAR LIMITATIONS. If the Committee grants
Incentive Stock Options, the aggregate Fair Market Value (determined as of the
date the Option is granted) of the shares of Stock under any such Options plus
any incentive stock options granted under any other plans of the Company which
shall be first exercisable by any one Participant during any one calendar year
shall not exceed $100,000, or such other dollar limitation as may be provided in
the Code.

                                  ARTICLE VIII
                                  ------------

                 TERMS AND CONDITIONS OF STOCK OPTION AGREEMENTS
                 -----------------------------------------------

8.1  STOCK OPTION AGREEMENTS. Awards shall be evidenced by Stock Option
Agreements in such form as the Committee shall, from time to time, approve. Such
Stock Option Agreements, which need not be identical, shall comply with and be
subject to the following terms and conditions:

     (a)  Medium of Payment. Upon exercise of the Option, the Option price shall
be payable either (i) in United States dollars, in cash, or by certified check,
bank draft or money order payable to the order of the Company, or (ii) in the
discretion of the Committee, through the delivery of shares of Stock held for at
least six months with the Fair Market Value equal to the total Option price, or
(iii) by a combination of the methods described in (i) and (ii).

          In addition to the above, the Committee, subject to such limitations
as it may determine, may authorize payment of the exercise price, in whole or in
part, by delivery of a properly executed exercise notice, together with
irrevocable instructions to:

                                      -5-

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(i) a brokerage firm designated by the Company to deliver promptly to the
Company the aggregate amount of sale or loan proceeds to pay the exercise price
and the amount necessary to satisfy the Company's minimum statutory tax
withholding that may arise in connection with the exercise, and (ii) the Company
to deliver the certificates for such purchased shares directly to such brokerage
firm.

         (b) Number of Shares. The Stock Option Agreement shall state the total
number of shares to which it pertains.

         (c) Option Price. With respect to Non-Qualified Stock Options, the
option price shall be an amount determined by the Committee, which amount may be
less than, equal to or greater than the Fair Market Value of such Shares on the
date of the granting of the Option. With respect to Incentive Stock Options, the
option price shall be not less than the Fair Market Value of such shares on the
date of the granting of the Option (or one hundred ten percent (110%) of such
amount if the Option is granted to an individual owning stock possessing more
than ten percent (10%) of the total combined voting power of all classes of
stock of Integral Systems, Inc. or any subsidiary, within the meaning of Code
Section 424(f), taking into account the attribution rules of Code Section
424(d)).

         (d) Term of Options. Each Non-Qualified Option and Incentive Stock
Option granted under this Plan shall expire not more than ten (10) years from
the date the Option is granted, except that each Incentive Stock Option granted
under the Plan to an individual owning stock possessing more than ten percent
(10%) of the total combined voting power of all classes of stock of Integral
Systems, Inc. or any subsidiary, within the meaning of Code Section 424(f),
taking into account the attribution rules of Code Section 424(d), shall expire
not more than five (5) years from the date the Option is granted.

         (e) Date of Exercise. Subject to subsection (d) and (f) of this
Section, an Option which becomes a Vested Option may be exercised in whole or in
part at any time thereafter. Options which are awarded hereunder shall become
exercisable as Vested Options, as follows:

             (i)  The aggregate number of shares of Stock subject to any Award
shall be divided into three installments (equally or unequally at the discretion
of the Committee), as specified in the Agreement. The first installment shall
become Vested Options one year from the date of such Award, the second
installment shall become Vested Options two years from the date of such Award
and the third installment shall become Vested Options three years from the date
of such Award. Any other vesting schedule may be substituted for the above, as
specified in the Agreement, at the Committee's discretion.

             (ii) Except as otherwise provided hereunder, the Committee may in
its discretion accelerate the time at which an Option granted hereunder may be
exercised.

         (f) Forfeiture or Exercise of Option. If a Participant ceases
employment with the Company, all Options held by him or her which are not Vested
Options shall terminate.

                                      -6-

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If a Participant terminates his or her employment or other service relationship
with the Company prior to the exercise of the Participant's Non-Qualified Stock
Options, such Options shall be forfeited (or exercisable after termination only
as provided in the applicable Stock Option Agreement). If a Participant
terminates employment with the Company prior to exercise of the Participant's
Vested Options which are Incentive Stock Options, such Vested Options shall be
forfeited, or be exercised, as follows:

             (i)   Termination and Retirement. In the event of a Participant's
Termination or Retirement, the Participant's Vested Options shall be forfeited
within three (3) months of the Participant's Termination or Retirement.

             (ii)  Disability. Upon the Disability of a Participant, the
Participant's Vested Options shall be exercisable within twelve (12) months (or
such shorter period as the Code or the terms of the particular Stock Option
Agreement may require) of the Participant's Date of Disability.

             (iii) Death. If the Participant dies while in the employment of the
Company or within the period of time after Termination or Retirement during
which the Participant would have been entitled to exercise his or her Vested
Option rights, the Participant's estate, personal representative or beneficiary
(as applicable) shall have the right to exercise such Vested Options, within one
(1) year from the date of the Participant's death (or such shorter period as the
Code or the terms of the particular Stock Option Agreement may require).

             (iv)  Other Restrictions/Forfeiture Events. The Committee shall
have complete discretion to prescribe any other events of forfeiture and/or
conditions of exercisability of Options, as specified in the applicable
Agreement.

         (g) Agreement as to Sale of Securities. If, at the time of the exercise
of any Option, in the opinion of counsel for the Company, it is necessary or
desirable, in order to comply with any applicable laws or regulations relating
to the sale of securities, that the Participant exercising the Option shall
agree to purchase the shares that are subject to the Option for investment only
and not with any present intention to resell the same and that the Participant
will dispose of such shares only in compliance with such laws and regulations,
the Participant will, upon the request of the Company, execute and deliver to
the Company an agreement to such effect.

         (h) Required Amendments. Each Award shall be subject to any provision
necessary to assure compliance with federal and state securities laws.

         (i) Limitation of Participant Rights. A Participant shall not be deemed
to be the holder of, or to have any of the rights of a holder with respect to,
any shares of Stock subject to an Option unless and until the Option shall have
been exercised pursuant to the terms thereof, the Company shall have issued and
delivered the shares to the Participant, and the Participant's name shall have
been entered as a stockholder of record on the books

                                      -7-

<PAGE>

of Integral Systems, Inc. Thereafter, the Participant shall have full voting,
dividend and other ownership rights with respect to such shares of stock.

                                   ARTICLE IX
                                   ----------

                       GRANTS IN SUBSTITUTION FOR OPTIONS
                       ----------------------------------
                          GRANTED BY OTHER CORPORATION
                          ----------------------------

9.1   SUBSTITUTE AWARDS. Awards may be granted under this Plan from time to time
in substitution for similar awards held by employees of corporations who become
or are about to become employees of the Company as the result of a merger or
consolidation of the employing corporation with the Company, or the acquisition
by the Company of the assets of the employing corporation, or the acquisition by
the Company of fifty percent (50%) or more of the stock of the employing
corporation causing it to become a subsidiary of the Company. Subject to the
procurement of the approval of the stockholders of the Company as may be
required for the Plan to satisfy the requirements of Rule 16b-3 under the
Securities Exchange Act of 1934, as amended, the terms and conditions of the
substitute Awards so granted may vary from the terms and conditions set forth in
this Plan to such extent as the Committee at the time of the grant may deem
appropriate to confirm, in whole or in part, to the provisions of the options in
substitution for which they are granted.

                                    ARTICLE X
                                    ----------

                          CHANGES IN CAPITAL STRUCTURE
                          ----------------------------

10.1  CAPITAL STRUCTURE CHANGES:

      (a) In the event of any change in the number of issued shares of Stock
resulting from a subdivision or consolidation of shares or other capital
adjustment, or the payment of a stock dividend or other such increase or
decrease of such shares, then appropriate adjustments shall be made by the
Committee with respect to outstanding Awards and the aggregate number of shares
of Stock which may be awarded pursuant to this Plan. Additions to Awards issued
as a result of any such change shall bear the same restrictions and carry the
same terms as the Awards to which they relate.

      (b) In the event of a change in the Stock which is limited to a change in
the designation thereof to "capital stock" or other similar designation, or in
par value to no par value, without increase or decrease in the number of issued
shares, the shares resulting from any such change shall be deemed to be Stock
within the meaning of this Plan.

                                      -8-

<PAGE>

                                   ARTICLE XI
                                   ----------

                               COMPANY SUCCESSORS
                               ------------------

11.1     IN GENERAL

         (a) If the Company shall be the surviving or resulting corporation in
any merger, sale of assets or sale of stock, consolidation or corporate
reorganization (including a reorganization in which the holders of Stock receive
securities of another corporation), any Award granted hereunder shall pertain to
and apply to the securities to which a holder of Stock would have been entitled.
The Committee shall make such appropriate determinations and adjustments as it
deems necessary so as to substantially preserve the rights and benefits, both as
to number of shares and otherwise, of Participants under this Plan.

         (b) If the Company shall not be the surviving corporation in any
merger, sale of assets or sale of stock, consolidation or corporate
reorganization (including a reorganization in which the holders of Stock receive
securities of another corporation) involving the Company, the successor
corporation shall issue substitute options so as to preserve substantially the
rights and benefits of the Participants under this Plan.

                                   ARTICLE XII
                                   -----------

                        AMENDMENT OR TERMINATION OF PLAN
                        --------------------------------

12.1     AMENDMENTS AND TERMINATION. The Plan shall terminate on February 6,
2012, which is the tenth (10) anniversary of its adoption by the Board. The
Board may at any time and from time to time otherwise alter, amend, suspend or
terminate this Plan in whole or in part; provided, however, that (i) no such
action may be taken without stockholder approval which materially increases the
benefits accruing to Participants hereunder, materially increases the number of
securities which may be issued pursuant to this Plan (except as provided in
Sections 10.1 and 11.1), materially extends the period for granting Awards
hereunder, or materially modifies the requirements as to eligibility for
participation hereunder; and (ii) no such action may be taken, without the
consent of the Participant to whom any Award shall have been granted, which
adversely affects the rights of such Participant concerning such Award, except
as such termination or amendment of this Plan is required by statute, or rules
and regulations promulgated thereunder, or as otherwise permitted hereunder.

                                  ARTICLE XIII
                                  ------------

                            MISCELLANEOUS PROVISIONS
                            ------------------------

13.1     NON-TRANSFERABILITY. Except by the laws of descent and distribution, no
benefit provided hereunder shall be subject to alienation, assignment or
transfer by a

                                      -9-

<PAGE>

Participant (or by any person entitled to such benefit pursuant to the terms of
this Plan), nor shall it be subject to attachment or other legal process of
whatever nature, and any attempted alienation, assignment, attachment or
transfer shall be void and of no effect whatsoever and, upon any such attempt,
the benefit shall terminate and be of no force or effect. During a Participant's
lifetime, Options granted to the Participant shall be exercisable only by the
Participant. Shares of Stock shall be delivered only into the hands of the
Participant entitled to receive the same or into the hands of the Participants
authorized legal representative.

13.2  NO EMPLOYMENT RIGHT. Neither this Plan nor any action taken hereunder
shall be construed as giving any right to any individual to be retained as an
officer, employee, director or independent contractor of the Company.

13.3  TAX WITHHOLDING. The Participant receiving Stock pursuant to the exercise
of an Option will be required to pay to the Company (in cash or cash
equivalents) any amount required to be withheld for federal, state, local or
employment taxes with respect to such Stock. Alternatively, at the request of a
Participant, or as required by law, such sums as may be required for the payment
of any estimated or accrued income tax liability or other tax withholding
obligations may be withheld from any cash compensation due the Participant from
the Company and paid over the governmental entity entitled to receive the same.

13.4  FRACTIONAL SHARES. Any fractional shares concerning Awards shall be
eliminated at the time of payment or payout by rounding down for fractions of
less than one-half (1/2) and rounding up for fractions of equal to or greater
than one-half (1/2). No cash settlements shall be made with respect to
fractional shares eliminated by rounding.

13.5  GOVERNMENT AND OTHER REGULATIONS. The obligation of the Company to make
payment of Awards in Stock or otherwise shall be subject to all applicable laws,
rules and regulations, and to such approvals by any government agencies as may
be deemed necessary or appropriate by the Committee. If Stock awarded hereunder
may in certain circumstances be exempt from registration under the Securities
Act of 1933, the Company may restrict its transfer in such manner as it deems
advisable to ensure such exempt status. The Plan is intended to comply with Rule
16b-3 under the Securities Exchange Act of 1934, as amended. Any provision
inconsistent with such Rule shall be inoperative and shall not affect the
validity of the Plan. The Plan shall be subject to any provision necessary to
assure compliance with federal and state securities laws.

13.6  INDEMNIFICATION. Each person who is or at any time serves as a member of
the Board or the Committee shall be indemnified and held harmless by Integral
Systems, Inc. against and from (i) any loss, cost, liability or expense that may
be imposed upon or reasonably incurred by such person in connection with or
resulting from any claim, action, suit or proceeding to which such person may be
a party or in which such person may be involved by reason of any action or
failure to act under this Plan; and (ii) any and all amounts paid by such person
in satisfaction of judgment in any such action, suit or

                                      -10-

<PAGE>

proceeding relating to this Plan. Each person covered by this indemnification
shall give Integral Systems, Inc. an opportunity, at its own expense, to handle
and defend the same before such person undertakes to handle and defend the same
on such person's own behalf. The foregoing right of indemnification shall not be
exclusive of any other rights of indemnification to which such persons may be
entitled under the charter or by-laws of Integral Systems, Inc. as a matter of
law, or otherwise, or any power that Integral Systems, Inc. may have to
indemnify such person or hold such person harmless.

13.7  RELIANCE ON REPORTS. Each member of the Board or the Committee shall be
fully justified in relying or acting in good faith upon any report made by the
independent public accountants of the Company, and upon any other information
furnished in connection with this Plan. In no event shall any person who is or
shall have been a member of the Board or the Committee be liable for any
determination made or other action taken or any omission to act in reliance upon
any such report or information, or for any action taken, including the
furnishing of information, or failure to act, if in good faith.

13.8  GOVERNING LAW. All matters relating to this Plan or to Awards granted
hereunder shall be governed by the laws of the State of Maryland, without regard
to the principles of conflict of laws thereof, except to the extent preempted by
the laws of the United States.

13.9  RELATIONSHIP TO OTHER BENEFITS. No payment under this Plan shall be taken
into account in determining any benefits under any pension, retirement, profit
sharing or group insurance plan of the Company.

13.10 EXPENSES. The expenses of implementing and administering this Plan shall
be borne by the Company.

13.11 TITLES AND HEADINGS. The titles and headings of the Articles and Sections
in this Plan are for convenience of reference only, and in the event of any
conflict, the text of this Plan, rather than such titles or headings, shall
control.

13.12 USE OF PROCEEDS. Proceeds from the sale of Stock pursuant to Options
granted under the plan shall constitute general funds of the Company.

13.13 NON-EXCLUSIVITY OF PLAN. Neither the adoption of the Plan by the Board nor
the submission of the Plan to the stockholders of the Company for approval shall
be construed as creating any limitations on the power of the Board to adopt such
other incentive arrangements as it may deem desirable, including, without
limitation, the granting of stock options otherwise than under the Plan, and
such arrangements may be either applicable generally or only in specific cases.

                                      -11-<PAGE>

                                                                   EXHIBIT 10.17

                              ASSUMPTION AGREEMENT
                              --------------------

         THIS ASSUMPTION AGREEMENT (as the same may be amended, modified or
supplemented from time to time, the "Assumption"), dated as of 18 April, 2002,
                                     ----------
made by THE MARASCO NEWTON GROUP LTD., a Virginia corporation, successor by
merger to MNG Acquisition Corp. (the "Subsidiary"), in favor of the Lender (as
                                      ----------
defined below), recites and provides:

                                 R E C I T A L S

         Pursuant to the terms of a Loan Agreement, dated as of August 15, 2001
(as amended, modified or supplemented from time to time, the "Loan Agreement"),
                                                              --------------
between SRA International, Inc., a Delaware corporation (the "Company"), Systems
                                                              -------
Research and Applications Corporation, a Virginia corporation ("SRA"), SRA
                                                                ---
Technical Services Center, Inc., a Delaware corporation ("STSC", and together
                                                          ----
with the Company and SRA, the "Original Borrowers"), and SunTrust Bank, a
                               ------------------
Georgia banking corporation (the "Lender"), the Lender agreed to extend credit
                                  ------
to the Original Borrowers. Terms defined in the Loan Agreement shall have the
same defined meanings when such terms are used in this Assumption.

         The Company owns 100% of the capital stock of the Subsidiary. The
Original Borrowers and the Subsidiary, together with the other Subsidiaries of
the Original Borrowers, are engaged in business on a consolidated and integrated
basis, and their integrated operations include applying for and making use of
credit on a joint basis. Accordingly, the Original Borrowers have requested that
the Subsidiary become a Borrower under the Loan Agreement and the other Loan
Documents. The Lender has agreed to accept the Subsidiary as a Borrower
thereunder, and the Subsidiary has agreed to assume the Obligations.
Accordingly, the Subsidiary agrees as follows:

         1.   The Subsidiary (a) assumes and agrees to be jointly and severally
liable with each other Borrower for all of the Obligations now existing or
hereafter arising, including, without limitation, the Obligations arising out of
the Loan Agreement, the Loans, the Notes, the Letter of Credit Agreements and
the other Loan Documents, and (b) agrees to be jointly and severally bound by
all of the terms, covenants and conditions of the Loan Agreement, the Notes, the
Letter of Credit Agreements and the other Loan Documents, and hereby assumes all
of the Obligations of the Borrowers thereunder and agrees to be jointly and
severally liable therefor.

         2.   The Subsidiary represents that all items of equipment and
inventory of the Subsidiary are located at the places specified in Schedule 1
                                                                   ----------
hereto. During the five years immediately preceding the date of this Agreement,
neither the Subsidiary nor any predecessor of the Subsidiary has used any
corporate or fictitious name other than its current corporate name. The
Subsidiary has no trade names. The chief executive office and mailing address of
the Subsidiary is 2801 Clarendon Boulevard, Suite 100, Arlington, Virginia
22201. The Subsidiary's exact legal name is that indicated on the signature
pages hereof. The Subsidiary is an organization of the type, and is organized in
the jurisdiction set forth herein. The signature

<PAGE>

page hereof accurately sets forth the Subsidiary's organizational identification
number or accurately states that it has none. All of the representations and
warranties set forth in the Loan Agreement are incorporated by reference in this
Assumption, and shall be deemed to have been made and given by the Subsidiary as
of the date hereof as though such representations and warranties were applicable
to it.

         3.   The Subsidiary grants to the Lender, in accordance with and
subject to the provisions of the Security Agreement, a security interest in all
of the Collateral of the Subsidiary as security for the Obligations.

         4.   Simultaneously with the execution hereof, the Subsidiary agrees to
execute and deliver to the Lender a Collateral Assignment, Patent Mortgage and
Security Agreement, substantially in the form attached to the Loan Agreement,
granting to the Lender a security interest in all of the Intellectual Property
of the Subsidiary as security for the Obligations.

         5.   The Subsidiary also agrees to execute, deliver and, if applicable,
record, such additional instruments, documents and agreements as the Lender may
reasonably require for the purpose of effecting the assumption described herein.

         IN WITNESS WHEREOF, the Subsidiary has caused this Assumption to be
executed by its duly authorized representative as of the day and year first
written above.

                          THE MARASCO NEWTON GROUP LTD., a Virginia corporation

                          By:      /s/ Amy L. Marasco
                                   --------------------------------------------
                          Name:    Amy L. Marasco
                                   --------------------------------------------
                          Title:   President
                                   --------------------------------------------
                          Organizational Number:
                                                  ---------------------------

                          SRA INTERNATIONAL, INC., a Delaware corporation

                          By:      /s/ Stephen C. Hughes
                                   --------------------------------------------
                          Name:    Stephen C. Hughes
                                   --------------------------------------------
                          Title:   Sr. VP, CFO
                                   --------------------------------------------
                          Organizational Number:
                                                  ---------------------------

                                        2

<PAGE>

                                   SCHEDULE 1
                                   ----------
                                       to
                              Assumption Agreement

Locations of Equipment:
----------------------

2801 Clarendon Blvd., Suite 100, Arlington, VA  22201
2425 Wilson Blvd., Arlington, VA  22201
Crystal Gateway, 1235 Jefferson Davis Hwy. Suites 1206 & 1208,
  Arlington, VA  22202
630 Davis Drive, Durham, NC  27606

Locations of Inventory:
----------------------

2801 Clarendon Blvd., Suite 100, Arlington, VA  22201
2425 Wilson Blvd., Arlington, VA  22201
Crystal Gateway, 1235 Jefferson Davis Hwy. Suites 1206 & 1208,
  Arlington, VA  22202
630 Davis Drive, Durham, NC  27606

                                        3

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