ADECCO EMPLOYS INFORMATICA DATA INTEGRATION SOLUTION TO SPEED TAX-REGULATION COMPLIANCE AND DRIVE OPERATIONAL EFFICIENCY

Nation's largest staffing and HR services company lowers cost of tax information delivery with Informatica PowerCenter

REDWOOD CITY, Calif., August 5, 2003 - Informatica Corporation (NASDAQ: INFA), a leading provider of data integration and business intelligence software, today announced that Adecco USA, the nation's leader in staffing and HR services, is using Informatica PowerCenter as a critical component of the company's integration infrastructure to speed compliance with government tax regulations.

“Due to the mission-critical nature of this project, we performed detailed reviews of every robust data integration product on the market before choosing Informatica PowerCenter,” said Rich Guariglia, vice president of data warehousing at Adecco. “Informatica's flexible, cost-effective, metadata-driven architecture is helping us integrate a vast amount of data and improve operational efficiency, while enabling us to rapidly comply with evolving government tax regulations.”

The nation's largest staffing and HR services company, Adecco acquired several companies within the last several years - each with its own legacy and proprietary systems. The resulting disparate “stovepipes” of historical data presented a challenge in achieving a unified enterprise view of tax-related data that complies with changing tax regulations. Using Informatica PowerCenter, Adecco is rapidly integrating terabytes of tax-related data to provide a detailed historical trail of tax payments as well as a full audit history and documentation of payments.

“We're pleased that yet another Fortune 500 company such as Adecco is using Informatica's market-leading data integration solution as mission-critical technology for optimizing its performance,” said Sanjay Poonen, senior vice president of worldwide marketing at Informatica. “Informatica PowerCenter is helping Adecco to significantly reduce the time and money allocated to integrating terabytes of data from disparate systems and complying with government regulations, and in turn enabling the company to focus its valuable resources on maintaining leadership in the human resource services market.”

About Adecco

Adecco S.A. is a Forbes 500 company and the global leader in HR solutions. The Adecco Group network connects 650,000 associates with business clients each day through its network of 28,000 employees and 5,800 offices in 67 countries around the world. Registered in Switzerland, and managed by a multinational team with expertise in markets spanning the globe, the Adecco Group delivers an unparalleled range of flexible staffing and career resources to corporate clients and qualified associates.

Adecco USA serves more than 70,000 clients a year through a nationwide network of almost 1,500 points of sales and service. With headquarters in Melville, NY, Adecco USA employs about 3,400 full-time employees and places more than 120,000 temporary associates each week.

Adecco S.A. is registered in Switzerland and is listed on the Swiss Exchange (ADEN / trading on Virt-x: 1213860), NYSE (ADO), and Euronext Premier Marché (12819).

About Informatica

Informatica Corporation (NASDAQ: INFA) is a leading provider of data integration and business intelligence software. Using Informatica products, Global 2000 companies can leverage their existing information assets for enterprise insight that helps them improve business performance, increase customer profitability, streamline supply chain operations and proactively manage regulatory compliance. More than 1,800 companies worldwide rely on Informatica to meet their end-to-end needs for enterprise data integration and business intelligence. For more information, call 1.650.385.5000 (1.800.970.1179 in the U.S.), or visit the Informatica Web site at http://www.informatica.com/.

Note: Informatica and PowerCenter are registered trademarks of Informatica Corporation in the United States and in jurisdictions throughout the world. All other company and product names may be trade names or trademarks of their respective owners.