Exhibit 99.4


                            CERTIFICATION PURSUANT TO
                         SECURITIES EXCHANGE ACT OF 1934
                             RULES 13A-14 AND15D-14



         In  connection  with the Quarterly  Report of Convera Corporation  (the
"Company") on Form 10-Q for the  period ended  July 31, 2002  as filed with  the
Securities  and  Exchange  Commission  on  the  date  hereof  (the "Report"), I,
Christopher M. Mann, Chief Financial Officer of  the Company, certify,  pursuant
to Securities Exchange Act of 1934 Rules 13a-14 and 15d-14, that:


(1)      I have reviewed this quarterly report on Form 10-Q of Convera
         Corporation;

(2)      Based on my knowledge, this quarterly report does not contain any
         untrue statement of a material fact or omit to state a material fact
         necessary to make the statements made, in light of the circumstances
         under which such statements were made, not misleading with respect to
         the period covered by this quarterly report; and

(3)      Based on my knowledge, the financial statements, and other financial
         information included in this quarterly report, fairly present in all
         material respects the financial condition, results of operations and
         cash flows of the registrant as of, and for, the periods presented in
         this quarterly report.




By: /s/ Christopher M. Mann
Christopher M. Mann
Chief Financial Officer
September 16, 2002