ENTERPRISE '00 COGNOS USER CONFERENCE, ANAHEIM, Calif., Oct. 3, 2000—Cognos^® (Nasdaq: COGN; TSE:CSN), the world's largest and most successful business intelligence company, today announced that it has joined the Siebel Alliance Program as a premier partner. Siebel Systems (Nasdaq:SEBL) is the world's leading provider of eBusiness application software. Cognos intends to integrate its market-leading business intelligence with Siebel Systems' customer-facing eBusiness applications to provide joint customers with a unique solution set. This integrated solution will strengthen customer acquisition and retention, improve e-business relationships and operational effectiveness, and streamline supply chain management for joint Cognos and Siebel customers.

The end result of a good Customer Relationship Management (CRM) strategy and implementation is a clearer understanding of how to attract the right new customers, while keeping existing customers extremely satisfied and away from the competition. To do this, organizations need to understand who - demographic and behavioral information - their customers are, and which customer segments offer the greatest revenue potential. Integrated with Cognos business intelligence, organizations can turn their customer data into meaningful information that impacts revenue, profitability and customer satisfaction. For example, by consolidating data throughout the company, from inventory to sales, joint Cognos and Siebel customers avoid running out of important items and sending partial shipments, lowering frustration levels of their customers everywhere.

Cognos is uniquely positioned to meet enterprise requirements of delivering a coordinated understanding of the customer. Cognos business intelligence allows organizations to have a coordinated view and access to the information from multiple customer touchpoints, such as order entry and call centers, as a single enterprise view regardless of how and where the information is stored. In addition, this information can be merged with data from providers that deliver demographic and lifestyle information to provide complete customer understanding. Organizations can analyze this customer information, isolate subsets of customer characteristics, and create profiles so they can focus marketing campaigns, attract new customers and retain the most profitable existing customers.

"The basis for successful loyalty relationships is providing a full-service approach. Siebel Systems enjoys a leading position in the customer-facing eBusiness market and Cognos is excited to be a partner," said Patrick O'Leary, Cognos vice president of strategic alliances. "CRM is a natural complement for our enterprise business intelligence solutions. Cognos and Siebel bridge the gap between business processes to ensure that customers, partners and suppliers are making consistent, coordinated decisions to grow the business and strengthen e-business relationships."

Siebel Systems

Siebel Systems, Inc. (Nasdaq: SEBL) is the world's leading provider of eBusiness applications software. Siebel Systems provides an integrated family of eBusiness application software enabling multichannel sales, marketing and customer service systems to be deployed over the Web, call centers, field, reseller channels, retail and dealer networks. Siebel System's sales and service facilities are deployed locally in more than 28 countries. For more information, please visit our Web site at www.siebel.com