ILOG NAMED A RESOUNDING LEADER IN BUSINESS RULES PLATFORM EVALUATION BY LEADING INDEPENDENT IT RESEARCH FIRM

SUNNYVALE, Calif. – 16 April 2008

New Research Report Showcases ILOG as a Leader in All Categories Where Evaluated; Sole Leader in Business Rules Platforms for .NET Developers

ILOG® (NASDAQ: ILOG, Euronext: ILO, ISIN: FR0004042364) today announced that it has been named a market leader in the April 2008 report “The Forrester WaveTM: Business Rules Platforms, Q2 2008” in all categories where ILOG products were evaluated. ILOG was named the sole leader in the category for .NET developers, and was named a “resounding” leader in general-purpose business rule platforms. ILOG was also named a leader in business rules platforms for Java developers and in business rules platforms for Business Analysts. The report also identified business rules platforms as a key enabling technology for Dynamic Business Applications because they enable applications to be built for change.

The report stated, “With an installed base of 984 customers and 4,542 licenses sold, ILOG has the most market penetration of any of the vendors evaluated. ILOG offers both JRules® and Rules™ for .NET® and has a strong and comprehensive road map.” Based on Forrester’s research, ILOG has more than two times the number of customers as compared to any other business rules management systems (BRMS) vendor listed in the report.

“The Forrester WaveTM: Business Rules Platforms, Q2 2008” presents results of a comprehensive evaluation of 11 top vendors. ILOG was among the select companies that Forrester invited to participate in this report. Vendors were assessed by evaluating 175 criteria points against five categories. The five categories are General Purpose Platforms which evaluate the broadest feature sets, Specialized Platform Vendors, Business Rules Platforms for Java Developers, Business Rules Platforms for .NET Developers and Business Rules Platforms for Business Analysts.

ILOG JRules was named as a leader of General Purpose Platforms based on its broad offering of developer and business analyst tools; rules life-cycle management; and deployment, administration and management features. ILOG JRules was also identified as a leader for Business Rules Platforms for Java Developers and Business Rules Platforms for Business Analysts, receiving the highest strategy score in the Java Developers evaluation. ILOG Rules for .NET was the sole leader named for Business Rules Platforms for .NET Developers. The report further states that ILOG has “strong support among systems integrators” and “the largest following of Independent Software Vendors (ISVs)”.

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