OTTAWA, ON and BURLINGTON, MA, September 17, 2002—Cognos (Nasdaq: COGN; TSX: CSN), the world leader in business intelligence (BI) solutions, today announced that it will release second quarter fiscal 2003 financial results on September 26, 2002 after the close of the market. The company will discuss the results on a conference call from 5:15 p.m. to 6:15 p.m. EDT.

Listeners can access the conference call at 416-640-1907 or via webcast at http://www.cognos.com/earnings. Presentation slides for the call can also be accessed at the Investor Relations area of the Cognos web site approximately 15 minutes prior to the start of the call.

A replay of the conference call will be available from Thursday, September 26, 2002 at 7:15 p.m. until Friday, October 3, 2002 at 11:59 p.m. The replay can be accessed at 416-640-1917. The passcode for the replay is 208460#.