ADVISORY/Quovadx Demonstrates International Web Services Interoperability at Web Services for Business Conference April 29-30, 2003 Olympia 2 in London.

Business Editors/High-Tech Writers

ADVISORY...for Tuesday and Wednesday, April 29-30, 2003

--(BUSINESS WIRE)

Quovadx, Inc. (Nasdaq: QVDX) will demonstrate its Web services interoperability at Web Services for Business, the only United Kingdom event dedicated to helping organizations prepare for Web services.

During the event Quovadx will present its approach to Web services, demonstrating the only pure XML development platform, QDX(TM) Platform V. Quovadx will also demonstrate its technology in the exhibit hall area of the conference. Attendees will be able to see the QUOVADX(TM) supply-chain management application, which demonstrates Web services interoperability among multiple vendors.

    WHO:    Quovadx Inc., featuring Emmanuel Igbinedion and David
            Nesvisky

    WHAT:   Web Services for Business Conference

    FOR:    Organizations piloting Web services projects, wondering
            where Web Services can be applied to the enterprise or
            simply curious about the implications of Web services

    WHEN:   April 29-30, 2003 at Olympia 2 in London

For more information on Web Services Anywhere from Quovadx, visit http://www.quovadx.com. Conference information is available online at http://www.webservices-business.com/.

QUOVADX and QDX are trademarks of Quovadx, Inc.