REEF SOFTWARE SELECTS ILOG JRULES FOR ITS E-BUSINESS MANAGEMENT PLATFORM ILOG Business Rule Engine to Provide Personalization and Advanced Functionality Throughout the InternetWare Suite. SAN FRANCISCO and PARIS - August 8, 2001- ILOG(r), the world's leading provider of software components, and Reef(r), a leading global provider of Internet software applications for the management of e-business, today announced that ILOG JRules(tm) will be integrated into an upcoming release of the Reef InternetWare(r) e-business suite. ILOG's 100% Java(tm) business rule engine will be used throughout Reef's integrated product suite to provide personalization capabilities that can be used for up-selling and cross-selling. "With customers in many of our industries paying increasing attention to the management of business rules as a strategic corporate asset, we recognized that many of our customers' e-business initiatives required a robust and flexible business rule engine," said Jrgen Obermann, vice president of worldwide marketing at Reef. "We selected ILOG JRules because of its tight Java integration, superior performance, and easy-to-use rule creation features. This allows us to continue empowering business users in the management of their e-business, a core value we share with ILOG." Reef's flagship product and integrated suite of applications are 100% Javabased, allowing companies of all sizes to easily integrate Reef's open platform as their web strategies evolve to meet future challenges. Reef is enabling companies of all sizes to electronically manage, access and communicate knowledge and information to any internal or external point-via Web sites, extranets, intranets and portals. The architecture of Reef InternetWare is also optimized for multichannel e-business to any type of portable device including Palm and Pocket PC handhelds, PDAs, WAP cell phones, tablet devices,Internet-enabled pagers, AutoPCs, interactive television and other information appliances. In an upcoming release of Reef InternetWare, it is planned that ILOG JRules will be offered as an add-on feature to Reef's suite of applications "We are pleased to be partnering with a fast-growing e-business software company in promoting the powerful new functionality that business rule technology can bring to portals and web storefronts," said Todd Lowe, executive vice president and general manager, ILOG Value Chain Management division. About Reef Reef is a leading global Internet software company that provides an open, integrated, software-based foundation for managing dynamic e-business. Companies of all sizes use Reef InternetWare to embrace continuous change and maximize e-business efficiencies by empowering non-technical business professionals to directly manage online content, commerce, community services, and business process coordination using a standard web browser. TIME Digital Europe recognized president, CEO and co-founder Philippe Brawerman as Europe's most influential high-technology entrepreneur of 2000. TIME Magazine also ranked Reef as one of Europe's Hottest Technology Firms for two consecutive years. Reef is a privately held company funded by Goldman Sachs, 3i, Cisco Systems, Net Fund Europe, Profrigo, Viventures, and other investors. Led by an experienced management team with proven industry success, the company serves a broad range of industries, including media/entertainment, telecommunications, healthcare, information technology, finance and retail. With offices in Asia-Pacific, Europe, and North America, Reef can be found on the web at www.reef.com. About ILOG Dually headquartered in Paris and Mountain View, Calif., ILOG is the world's leading supplier of software components. Founded in 1987, ILOG today offers embeddable optimization, visualization and business rule components that dramatically shorten the development time of enterprise applications in the supply-chain, telecommunications, transportation and financial services industries. ILOG has a significant market share for its optimization technology and is playing an active role in fostering e-business software innovations. Visit www.ilog.com for additional information. # # # ILOG is a registered trademark of ILOG. ILOG JRules is a trademark of ILOG. Reef and InternetWare are registered trademarks of Reef S.A./N.V. All other brand and product names are the trademarks or registered trademarks of their respective holders. CONTACTS: Jessica Epple Reef USA (415) 241 9178 ext. 255 JEpple@xxxxxxxx Susan Peters ILOG USA (650) 567-8109 speters@xxxxxxxx