Exhibit 24
POWER OF ATTORNEY
For Executing Forms 3, 4 and 5


	Know all by these presents, that the undersigned hereby
constitutes and appoints each of David V. Mastran, Richard A.
Montoni, and David R. Francis, signing singly, his/her true
and lawful attorney-in-fact to:
(1) execute for and on behalf of the undersigned Forms
 3, 4 and 5 in accordance with Section 16(a) of the
Securities Exchange Act of 1934 and the rules thereunder;
(2) do and perform any and all acts for and on behalf
of the undersigned which may be necessary or desirable to
complete the execution of any such Form 3, 4 and 5 and the
timely filing of such form with the United States Securities
 and Exchange Commission and any other authority; and
(3) take any other action of any type whatsoever in
connection with the foregoing which, in the opinion of
such attorney-in-fact, may be of benefit to, in the best
 interest of, or legally required by, the undersigned, it
being understood that the documents executed by such attorney
- -in-fact on behalf of the undersigned pursuant to this Power
of Attorney shall be in such form and shall contain such terms
 and conditions as such attorney-in-fact may approve in his
discretion.
	The undersigned hereby grants to each such attorney-in-fact
full power and authority to do and perform all and every act and
thing whatsoever requisite, necessary and proper to be done in the
exercise of any of the rights and powers herein granted, as fully
to all intents and purposes as such attorney-in-fact might or
could do if personally present, with full power of substitution
or revocation,
 hereby ratifying and confirming all that such attorney-in-fact,
 or
 his/her substitute or substitutes, shall lawfully do or cause to
 be
 done by virtue of this power of attorney and the rights and
powers
herein granted.  The undersigned acknowledges that the foregoing
attorneys-in-fact, in serving in such capacity at the request of
the undersigned, are not assuming any of the undersigned's
responsibilities to comply with Section 16 of the Securities
Exchange Act of 1934.


	IN WITNESS WHEREOF, the undersigned has caused this
 Power of Attorney to be executed as of this _28______
day of _____October_____________, 2002.



							Signature


							Russell A Beliveau
							Printed Name