Document:

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                                                                     Exhibit 4.8

     THIS SEVENTH SUPPLEMENTAL INDENTURE (this "Supplemental Indenture"), dated
as of May 23, 2003, among Anteon International Corporation (formerly known as
Azimuth Technologies, Inc.), a Delaware corporation (the "Company"), and
The Bank of New York (as successor to IBJ Whitehall Bank & Trust Company), a New
York banking corporation as trustee (the "Trustee").

     WHEREAS, the Company, Anteon Corporation (formerly known as Techmatics,
Inc.), a Virginia corporation and a subsidiary guarantor, CITI-SIUSS LLC, a
Delaware corporation and a subsidiary guarantor, South Texas Ship Repair, Inc.,
a Virginia corporation and a subsidiary guarantor, and the Trustee are parties
to an Indenture, dated as of May 11, 1999, as supplemented, providing for the
issuance of the Company's 12% Senior Subordinated Notes due 2009 (the
"Indenture");

     WHEREAS, on the date hereof, the Company has acquired all of the issued and
outstanding common stock of Information Spectrum, Inc., a New Jersey corporation
("ISI"), and accordingly, ISI became a wholly-owned subsidiary of the Company;

     WHEREAS, pursuant to Section 4.10 of the Indenture, ISI, as a new
Restricted Subsidiary, is required to enter into this Supplemental Indenture as
a Subsidiary Guarantor;

     WHEREAS, the Company, ISI and the Trustee are authorized to enter into this
Supplemental Indenture;

     NOW, THEREFORE, for and in consideration of the premises and the mutual
covenants contained in this Supplemental Indenture and for other good and
valuable consideration, the receipt and sufficiency of which are herein
acknowledged, the Company, ISI and the Trustee hereby agree for the equal and
the ratable benefit of all Holders of the Securities as follows:

                                   ARTICLE ONE

                                   Definitions

1.1  Definitions. For purposes of this Supplemental Indenture, the terms defined
in the recitals shall have the meanings therein specified; any terms defined in
the Indenture and not defined herein shall have the same meanings herein as
therein defined; and references to Articles or Sections shall, unless the
context indicates otherwise, be references to Articles or Sections of the
Indenture.

                                     Page 1

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                                   ARTICLE TWO

                   Guaranty Of Securities And Other Provisions

2.1  ISI Guarantee

     a) ISI hereby unconditionally and irrevocably guarantees, jointly and
severally, to each Holder and to the Trustee and its successors and assigns (i)
the full and punctual payment of principal of and interest on the Securities
when due, whether at maturity, by acceleration, by redemption or otherwise, and
all other monetary obligations of the Company under this Indenture and the
Securities and (ii) the full and punctual performance within applicable grace
periods of all other obligations of the Company under the Indenture and the
Securities (all the foregoing being hereinafter collectively called the
"Obligations"). ISI further agrees that the Obligations may be extended or
renewed, in whole or in part, without notice or further assent from ISI and that
ISI will remain bound under this Section notwithstanding any extension or
renewal of any Obligation.

     b) ISI, the Trustee and each Holder by its acceptance of a Security hereby
agrees that the Subsidiary Guaranty of ISI provided hereunder shall be subject
to all terms, provisions and conditions in the Indenture that relate to a
Subsidiary Guaranty (including, without limitation, Articles 11 and 12 of the
Indenture). ISI further agrees to be bound by, and to comply with, all
provisions of the Indenture and Subsidiary Guarantee that are applicable to a
Subsidiary Guarantor.

2.2  Execution and Delivery of Subsidiary Guaranties

The delivery of any Security by the Trustee, after the authentication thereof
under the Indenture, shall constitute due delivery of the Subsidiary Guaranty on
behalf of ISI.

2.3  No Personal Liability

No stockholder, officer, director, employee or incorporator, past, present or
future, of ISI, as such, shall have any personal liability under the Subsidiary
Guaranty of ISI by reason of his, her or its status as such stockholder,
officer, director, employee or incorporator.

                                  ARTICLE THREE

                                  Miscellaneous

3.1  Effect of the Supplemental Indenture

This Supplemental Indenture supplements the Indenture and shall be a part and
subject to all the terms thereof. Except as supplemented hereby, the Indenture
and the Securities issued thereunder shall continue in full force and effect.

                                     Page 2

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3.2  Counterparts

This Supplemental Indenture may be executed in counterparts, each of which shall
be deemed an original, but all of which shall together constitute one and the
same instrument. The parties hereto confirm that any facsimile copy of another
party's executed counterparts of this Supplemental Indenture (or its signature
page hereof) will be deemed to be an executed original thereof.

3.3  GOVERNING LAW.

THIS SUPPLEMENTAL INDENTURE SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE
WITH, THE LAWS OF THE STATE OF NEW YORK.

                                     Page 3

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     IN WITNESS WHEREOF, the parties hereto have caused this Supplemental
Indenture to be duly executed on the date first above written.

                                   ANTEON INTERNATIONAL CORPORATION

                                   By: /s/ Joseph Kampf
                                       -----------------------------------------
                                   Name:  Joseph Kampf
                                   Title: President and Chief Executive Officer

                                   INFORMATION SPECTRUM, INC.

                                   By: /s/ Curtis Schehr
                                       -----------------------------------------
                                   Name:  Curtis Schehr
                                   Title: Vice President

                                   THE BANK OF NEW YORK, as Trustee

                                   By: /s/ Geovanni Barris
                                       -----------------------------------------
                                   Name:  Geovanni Barris
                                   Title: Vice President

                                     Page 4<PAGE>

                                                                 Exhibit 10.13.1

                                AMENDMENT TO THE
                         INTERSTATE BAKERIES CORPORATION
                            1996 STOCK INCENTIVE PLAN

                  THIS AMENDMENT, made and entered into this 6/th/ day of May,
2003, by Interstate Bakeries Corporation, a Delaware corporation, (the
"Company"), amends the Interstate Bakeries Corporation 1996 Stock Incentive Plan
(the "Plan").

                                    RECITALS

                  A. The Company established the Plan to enable its employees,
directors and executive officers to acquire or increase their equity interests
in the Company.

                  B. Beginning July 1, 2001, the Delaware General Corporation
Law permitted, with certain exceptions, boards of directors of Delaware
corporations to delegate to one or more officers the authority to grant stock
options to officers and employees.

                  C. The Company desires to amend the Plan to permit, with
certain limitations, the Compensation Committee of the Company's Board of
Directors (the "Committee") to delegate to one or more Company officers the
authority to grant stock options and other awards under the Plan.

                  D. Section 12.1 of the Plan provides the Company's Board of
Directors with the power to amend the Plan from time to time, and the Board of
Directors, at a meeting held on May 6, 2003 approved this amendment to the Plan.

                                    AGREEMENT

                  NOW, THEREFORE, the Company hereby amends the Plan by adopting
the following Plan Amendment:

                  Modification of Plan Administration

                  Effective January 1, 2003, the following Section 3.4 shall be
added to the Plan:

         3.4 Delegation to Officer(s). Subject to the limitations provided in
this Section 3.4, the Board, in its sole discretion, may, by resolution,
delegate to one or more officers of the Corporation the authority to: (a) select
the Eligible Employees to participate in the Plan; (b) determine the rights or
options to be received by such Eligible Employees; and (c) establish the
exercise price with respect to an option using the formula set forth in Section
6.2(a) of the Plan. The Board resolution delegating to such officer or officers
such authority shall (i) specify the total number of rights or options such
officer or officers may award; (ii) prohibit any such designated officer from
designating himself or herself as a recipient of any right or option; and (iii)
prohibit any such designated officer from making a grant of a right or option to
any individual who is, at the time of the grant, subject to Section 16 of the
Securities Exchange Act of 1934.

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                  IN WITNESS WHEREOF, the Company has caused this Amendment to
be adopted by its duly authorized officer as of the day first written above.

                                    INTERSTATE BAKERIES CORPORATION

                                    By: /s/ James R. Elsesser
                                       --------------------------------------
                                       Name:  James R. Elsesser
                                              -------------------------------
                                       Title: Chief Executive Officer
                                              -------------------------------

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