WINWORKS and ILOG Collaborate on Workforce Scheduling for Specialty Retailers in Japan

WINWORKS One Leverages ILOG CPLEX To Optimize Staff Scheduling

TOKYO – April 3, 2007 – ILOG® (NASDAQ: ILOG; Euronext: ILO, ISIN: FR0004042364) and WINWORKS® KK, a leading Japanese independent software vendor (ISV), today announced that WINWORKS has selected ILOG CPLEX optimization software for its WINWORKS One workforce scheduling solution. The companies also today announced that they will cooperate on joint marketing activities.

Targeting specialty retailers in Japan, WINWORKS One leverages CPLEX to achieve the effective utilization of personnel to maximize profits, minimize lost sales opportunities and balance customer service goals by matching available personnel with business needs. Optimization technology is essential to workforce scheduling because it ensures that organizations find feasible schedules and efficiencies that would not be possible without the technology’s solving power.

WINWORKS One leverages ILOG CPLEX to match staff levels with the skills necessary for a work site, and creates an optimal work schedule at the touch of a button. It also ensures compliance with Labor Standards Law, employment contracts, as well as company rules and regulations. The software minimizes lost sales opportunities created by staff shortages and reduces overtime hours, resulting in practical and efficient management of labor costs. The software also ensures fair treatment of all staff, by taking into account individual staff preferences, and allows managers to clearly see all conditions that might impact a schedule. Based on advanced mathematics ILOG CPLEX is the world's most widely-adopted optimization engine.

More than 1,000 commercial customers, including 50 of the Fortune 100, use ILOG optimization tools, engines and applications to solve the world's most challenging planning and scheduling problems. These customers include APL, BNSF, JR East, Logistics, Maersk, Schneider, SNCF, United Airlines, the United States Postal Service and UPS in transportation and logistics; and Airbus, Coors, Dell, Hansol Paper, Michelin, Mitsubishi Chemicals, Nippon Steel, Nissan, Porsche, Saint Gobain, Thyssen Krupp, and Toyota in manufacturing. ILOG optimization products are also used by a majority of the leading Supply Chain Management software vendors, including i2, Infor, JDA, Manhattan Associates, Oracle, and SAP as well as in research programs at over 1,000 universities around the world, making the products the "gold standard" for performance and solution quality in the Operations Research community. For more information, please visit http://www.ilog.com/products/optimization.

About WINWORKS
Based in Tokyo, WINWORKS is a software company provides workforce scheduling solutions. Thanks to its Human Supply Chain Management (HSCM) concept, WINWORKS optimizes the human resource distribution of its customers according to their business demands, improving operational efficiency, in particular for customers that value quality of service.

About ILOG
ILOG delivers software and services that empower customers to make better decisions faster and manage change and complexity. Over 2,500 corporations and more than 465 leading software vendors rely on ILOG's market-leading business rule management system (BRMS), optimization and visualization software components, to achieve dramatic returns on investment, create market-defining products and services, and sharpen their competitive edge. ILOG was founded in 1987 and employs more than 775 people worldwide. For more information, please visit www.ilog.com.

ILOG and CPLEX are registered trademarks of ILOG Inc. and ILOG S.A. All other trademarks are the property of their respective owners.