Ottawa, Ontario And Burlington, Massachusetts, June 24, 2005 Cognos (Nasdaq: COGN; TSX: CSN), the world leader in enterprise business intelligence and corporate performance management (CPM), today dismissed the results of a performance and throughput benchmark test on Cognos ReportNet funded by Business Objects, whereby Business Objects dictated the testing criteria and testing environment to ensure positive outcomes for its products. Cognos did not participate or provide its software for testing.

As part of an independent test at the IBM Solution Partner Center lab in San Mateo, CA., Cognos ReportNet demonstrated massive scalability in a concurrent user environment with mission-critical response times for Web-based content navigation, report viewing and report execution to 190,000 named users. Cognos ReportNet continually demonstrated excellent performance in real-world scenarios ranging from 20,000 to 50,000 named users on a 16-CPU Windows box.

Built upon a service-oriented architecture, Cognos ReportNet offers a complete, pure Web-based enterprise query and reporting environment. It is the fastest growing product in the company's history with more than $100 million in license revenue in its first year alone.

About Cognos:

Cognos delivers the next level of competitive advantage - Corporate Performance Management (CPM) - achieved through the strategic application of BI on an enterprise scale. Our integrated CPM solution helps customers drive performance through planning; monitor performance through scorecarding; and understand performance through business intelligence.

Cognos serves more than 23,000 customers in over 135 countries. Cognos enterprise business intelligence and performance management solutions and services are also available from more than 3,000 worldwide partners and resellers. For more information, visit the Cognos Web site at http://www.cognos.com.