EXHIBIT A
AGREEMENT AS TO JOINT FILING OF SCHEDULE 13D
In accordance with Rule 13d-1(k)(1) under the Securities Exchange Act of
1934, as amended, the undersigned hereby agree to the joint filing, on behalf of
each of them, of a Statement on Schedule 13D (including amendments thereto) with
respect to the Common Stock of Xxxxxx Technologies, Inc. Each of them is
responsible for the timely filing of such Schedule 13D and any amendments
thereto, and for the completeness and accuracy of the information concerning
such person contained therein; but none of them is responsible for the
completeness of accuracy of the information concerning the other persons making
the filing, unless such person knows or has reason to believe that such
information is inaccurate.
Date: February 7, 2003
SCIENCE APPLICATIONS INTERNATIONAL CORPORATION
By /S/ XXXXXXX X. XXXXX
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Xxxxxxx X. Xxxxx
Senior Vice President and
General Counsel
SAIC VENTURE CAPITAL CORPORATION
By /S/ XXXX X. XXXXX
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Xxxx X. Xxxxx
General Counsel
