Press Release Decision Systems Inc. signs Reseller Partnership Agreement with PolyVista Inc. CHICAGO - June 4, 2002 - Decision Systems Inc. and PolyVista Inc. today announced a Partnership Agreement relating to the resale of PolyVista’s Discovery Software product line. PolyVista develops automated, high performance analytical solutions for the Knowledge Discovery market. Decision Systems Inc. is a consulting and technology company specializing in business intelligence, OLAP, data mining, data warehousing and analytical applications. Decision Systems clients are information-intensive businesses, in a cross-section of industry segments including: * Financial Services * Health Care * Retail * Manufacturing * Automotive * Food & Beverage * Advertising "We are very excited to offer the PolyVista Discovery Software to our current and future clients. Its ability to deliver seamless data mining and visualization in combination with Microsoft’s Analysis Services (OLAP) clearly migrates OLAP users to a level of analytical capability never before realized by general knowledge workers" stated Reid Karabush, President, Decision Systems Inc. "In our opinion, PolyVista’s ability to deliver discovery and data mining through OLAP offers significant competitive advantages to those organizations looking to leverage next-generation solutions across a user base lacking statistical expertise." Bob Ford, Vice President of Technical Services at PolyVista, is also enthusiastic about the partnership. "Decision Systems provides excellent subject matter expertise that PolyVista can leverage to custom tailor solutions for specific industries and clients. We look forward to working with them and will also be soliciting their valuable feedback to further develop our technology." About Decision Systems Inc. Founded in 1989 and headquartered in Northbrook, IL, Decision Systems is a consulting and technology company specializing in business intelligence, OLAP, data mining, data warehousing and analytical applications and is recognized nationwide as experts in these fields. Decision Systems clients are located thought North America and represent a cross-section of industry segments. To find out more, visit the Decision Systems Web site at www.decisionsystems.com. About PolyVista PolyVista is headquartered in Houston, TX. PolyVista’s Analytic technology has been in development for over five years. PolyVista offers the first data mining technology specifically for OLAP, using Microsoft’s Analysis Services as its engine. Because PolyVista runs on OLAP, the algorithms are fully integrated with ad-hoc query and visualization, and the technology is simple and fast enough for the average knowledge worker to use. PolyVista’s clients include numerous Fortune 1000 companies in diverse industries such as marketing, manufacturing, telecommunications and services. For more information on PolyVista, please visit www.polyvista.com PolyVista is a registered trademark of PolyVista Corporation.; Other products mentioned in this document are registered, trademarked or service marked by their respective owners. Contact: Decision Systems Inc. Cynthia Davis, 847/433-0876 ext. 104 cdavis@decisionsystems.com or PolyVista Inc. Holly Wall, 713-521-1101 ext. 113 Holly.Wall@polyvista.com