Ottawa, Ontario and Burlington, Massachusetts, December 9, 2002—Cognos (Nasdaq: COGN; TSX: CSN), the world leader in business intelligence (BI) solutions, today announced that it will release third quarter fiscal 2003 financial results on December 19, 2002 after the close of the market. The company will discuss the results on a conference call and webcast, beginning at 5:15 p.m. Eastern Time.

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 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, December 19, 2002 at 7:15 p.m. Eastern Time until Thursday, December 26, 2002 at 11:59 p.m. Eastern Time. The replay can be accessed at 416-640-1917. The passcode for the replay is 224214#.