EXHIBIT 99.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with this quarterly report on Form 10-Q of Versata, Inc. (the “Company”) for the period ended April 30, 2003, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Eugene Wong, Chief Executive Officer and Director of the Company, hereby certify pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge:

1. The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company as of the date and for the periods expressed in the Report.

Date: June 13, 2003

By    /s/    Eugene Wong                                         

          Eugene Wong

          Chief Executive Officer and Director