ILOG UNVEILS JRULES BUSINESS RULES SOFTWARE FOR IBM ZSERIES.

ILOG(R) (Nasdaq: ILOG; Euronext: ILO; ISIN: FR0004042364), a leading provider of enterprise-class software components and services, has announced that ILOG JRules(TM) a key offering in ILOG's Business Rule Management Systems (BRMS) product line, is the first business rules software to be certified for the new IBM eServer zSeries(TM) platform.

ILOG worked closely with IBM engineers at IBM's laboratory in Montpellier France for the certification for both Linux on zSeries and z/OS environments. The certification targets customers -- particularly in the financial services and government spaces -- who want to deploy Java on the mainframe to enhance security, performance and manageability through server consolidation.

"Our customers have made it clear to us that they need the benefits of a robust BRMS in their projects. They want better access to, and control over the business policies that drive their business -- to automate complex decision making, promote business agility and enforce compliance and best practices," said Eric Bresson, EMEA Sales Channel zSeries, IBM. "We're pleased to see ILOG, a leader and innovator in the business rule management space, become the first product in its category to be certified for the zSeries."

According to IBM, the zSeries are the first enterprise servers designed from the ground up to meet the high-performance data and transaction-serving requirements of the next generation of ebusiness. These new core ebusiness infrastructure products will allow customers to push performance and connectivity to the outer limits while reaping the benefits of the mainframe.

ILOG has consistently built on its history of product innovation to make ILOG JRules the industry's leading business rules software. For two years in a row, the company was named to the leader quadrant of Gartner's Magic Quadrant for Business Rule Engines. ILOG's BRMS adds agility to strategic business applications, including compliance solutions that must monitor high volumes of data in real time, enabling the immediate detection and reporting of faulty or fraudulent information. ILOG JRules is also an essential part of business process management solutions because it enables the effective management of complex, dynamic policies that can number in the thousands for a discrete business process. Customers of the award-winning ILOG JRules include CitiStreet, eBay, Zurich, MetLife, Sabre and many other leading Global 2000 companies and governments worldwide.

ILOG is a member of IBM's PartnerWorld program, as well as its Business Performance Management Initiative. ILOG was the first business rule vendor to join the Eclipse consortium in February 2004. In June 2004, ILOG launched ILOG BR Studio(TM), the first business rule technology, for the Eclipse platform that is validated for WebSphere Studio.

About ILOG

For more than 10 years, ILOG's innovative enterprise-class software components and services have helped companies maximize their business agility and improve operating efficiency. Over 1000 global corporations and more than 300 leading software vendors rely on ILOG's business rules, optimization and visualization technologies to achieve dramatic returns on investment, create market-defining products and services, and sharpen their competitive edge.

For more information, visit http://www.ilog.com or call 650/567-8128.