ILOG JRULES CUTS DEVELOPMENT TIME OF MISSION CRITICAL APPLICATIONS RUNNING ON ORACLE9IAS Enables Enterprise Customers to Quickly Add Personalization Capabilities to Existing Applications PARIS, France and MOUNTAIN VIEW, Calif. -- August 7, 2001 - ILOG(r) (NASDAQ: ILOG (NM France: SICOVAM: 006673), the leading provider of software components, today announced that ILOG JRules(tm), 100% Java(tm)-based business rule engine, has been approved to run on Oracle9i Application Server (Oracle9iAS). ILOG JRules running on Oracle 9iAS will give high-performance, mission critical Internet application customers a solution for quickly building personalized Java applications and deploying them. ILOG has been named among several industry leading Java development tool vendors that have added support for Oracle9i Application Server, according to an announcement issued today by Oracle. "Oracle9i Application Server's developer friendly environment coupled with high performing ILOG JRules engine, will give enterprise customers flexible rule-based personalization capabilities," said Rene Bonvanie, Vice President of Oracle9i Marketing at Oracle. "With this integration, customers can quickly and easily add new business rules that are needed for order management, event management, billing and other critical functions of existing applications." "Oracle9iAS and ILOG JRules complement each other. - they are fast, lightweight and 100% J2EE compliant,"said Eric Brisson, Vice President of Communications Business Division at ILOG. "With ILOG JRules running on Oracle9iAS, enterprises have flexibility to quickly build and deploy new business rules to reflect rapidly changing needs of customers." Compatibility with open standards is another benefit of ILOG JRules integrated with Oracle9iAS. Both are fully compliant with Java 2 Enterprise Edition (J2EE), further enhancing the quick addition of key capabilities that are scalable and work seamlessly within and beyond a corporate enterprise. Joint support of the versatile J2EE architecture also helped ILOG JRules to be integrated with Oracle9iAS in just two days - and the ILOG rule engine delivers outstanding performance on the Oracle platform. The selection of ILOG JRules for Oracle9iAS builds on the relationship between the two companies and follows the June 1999 decision by Oracle to embed ILOG optimization components in APS (Advanced Planning and Scheduling) part of the Oracle Advanced Supply Chain Planning and Oracle Manufacturing Scheduling offering. ILOG components are considered the de facto standard for optimization. Business Rules for Business People ILOG JRules offers many differentiating features for companies who want a powerful business rule engine for Oracle9iAS. JRules was the first to bring business rules for business people by offering a customizable business action language that allows business rules to be created in the language of a business or industry. The latest version, ILOG JRules 3.5, continues this tradition of allowing non-programmers with more knowledge of customer needs to change the business rules that govern the application. ILOG JRules 3.5 uses the full power of the ILOG business rule language to monitor and react to XML objects. This allows business people and others to construct business rules as usual using ILOG's Rule Builder environment. ILOG JRules is also very lightweight, with a footprint of just 300 Kilobytes, and is extremely high performance. Recent benchmark tests show ILOG business rule engines can fire up to 18,000 rules per second. Other ILOG Java components will be integrated with Oracle9iAS. These include ILOG JConfigurator(tm), the first embeddable software product that truly customizes the online configuration and selection of products and services for each individual buyer. In addition, ILOG is working to bring some of its optimization engines into the program. About Oracle9i Application Server Oracle solves the IT challenge of integrating fragmented middleware products to run an e-business by providing one product that can replace more than 10 separate point products from other vendors. Oracle9i Application Server features full J2EE and XML support, built-in enterprise portal software, high-speed caching, business intelligence, rapid application development, application and business integration, Web services and more, all in one package. With Oracle's new lightweight J2EE engine and extended caching capabilities, companies can save on infrastructure costs by scaling with software instead of hardware. About ILOG Dually headquartered in Paris and Mountain View, Calif., ILOG is the world's leading supplier of C++ and Java software components. ILOG's embeddable optimization, visualization and business rules software components dramatically shorten development times for enterprise software applications in the supply chain, telecommunications, transportation and financial services industries. In addition to optimization applications where ILOG enjoys significant market share, the company is taking an active role in the e-business software-components market. Visit www.ILOG.com for additional information. # # # ILOG is a registered trademark, and ILOG JRules, and ILOG JConfigurator are trademarks of ILOG. Oracle is a registered trademark and Oracle9i is a trademark or registered trademark of Oracle Corporation. All other trademarks are the properties of their respective owners. Media Contact: Emily Hall ILOG, Inc. 650-567-8215 ehall@xxxxxxxx