ARIBA AND INFORMATICA DELIVER POWERFUL ANALYTIC SOLUTION TO ARIBA B2B COMMERCE PLATFORM CUSTOMERS

First integrated analytic applications to enable analysis across entire e-business value chain by linking customer, partner and supplier relationships

MOUNTAIN VIEW and PALO ALTO, Calif., June 28, 2000 - Ariba Inc. (NASDAQ: ARBA), the leading business-to-business (B2B) e-Commerce platform provider, and Informatica Corporation (NASDAQ: INFA), a leading provider of integrated analytic solutions for e-business, today announced the availability of Informatica CommerceAnalytics (ICA) for Ariba™, a tightly integrated B2B e-commerce analytic solution. Now available to all customers of the Ariba Buyer™ B2B e-Commerce solution, the ICA "purchasing analytics" solution is designed to help customers analyze their transactional data to better identify trends and opportunities.

Ariba Buyer, leveraging Ariba Commerce Services Network™, enables organizations to electronically aggregate corporate purchasing from employee desktops and direct spending to preferred suppliers and B2B marketplaces, resulting in higher-volume pricing and greater efficiency.

Built upon Informatica's PowerCenter.e™ data-integration software, the ICA solution extracts data directly from Ariba Buyer and populates a packaged analytic application. The data can then be accessed by a variety of decision-makers within a company, including procurement managers, financial and operations analysts, and everyday purchasing managers. With critical analytical information in hand, these employees are then empowered to make better business decisions - decisions that can lower costs, improve service levels, and optimize commerce processes.

"In the competitive landscape of B2B e-business where the number of buyers and suppliers for online transactions has increased dramatically, a detailed understanding of business across multiple channels and the many variables within the complex web of customer, partner and supplier relationships is becoming an integral part of a company's value chain," said Dave Rome, vice president alliances and business development for Ariba. "With the delivery of Informatica CommerceAnalytics for Ariba, Informatica is helping to directly address critical analytic requirements for optimizing commerce and other supply-chain operations."

"By offering analytic capabilities to its e-procurement customers, Ariba is providing a powerful means for transforming B2B e-commerce transactional data into valuable e-business intelligence," said Diaz Nesamoney, president of Informatica. "With this insight, Ariba customers can optimize the performance of their current business, and uncover new business opportunities and revenue streams."

The result of a joint-development effort by Informatica and Ariba, Informatica CommerceAnalytics for Ariba is now available from Informatica for all current and new Ariba Buyer customers.

About Ariba, Inc.

Ariba, Inc. is the leading business-to-business (B2B) eCommerce platform provider. Through the Ariba B2B Commerce Platform - an open, end-to-end infrastructure of interoperable software solutions and hosted Web-based commerce services - the company enables efficient online trade, integration and collaboration between B2B marketplaces, buyers, suppliers and commerce service providers. The global reach and best-of-breed functionality of the Ariba B2B Commerce Platform creates Internet-driven economies of scale and process efficiencies for leading companies around the world, including more than 20 of the Fortune 100. Ariba can be contacted in the U.S. at +1.650.930.6200 or at www.ariba.com.

About Informatica

Informatica is a leading provider of e-business analytic solutions, including a comprehensive family of analytic applications and the industry's most powerful enterprise data-integration software platform, that help companies evaluate their performance across the entire e-business value chain. More than 50 of the Fortune 100 now rely on Informatica's analytic solutions to obtain the insight they need to stay competitive and grow their businesses. In total, more than 750 leading companies across all industries use Informatica, including Merrill Lynch, 3Com, Autodesk, Chevron, Delta Air Lines, Met Life, Mutual of Omaha, Sprint, MCI WorldCom, Barnesandnoble.com, eBay, Netscape, CNET, Inktomi, Preview Travel, Priceline.com, Deutsche Bank, UBS, Zurich Insurance and Polo Ralph Lauren. For more information, call 800.970.1179, or visit Informatica's Web site at www.informatica.com.

Ariba and the Ariba logo are registered trademarks of Ariba, Inc. Ariba B2B Commerce Platform, Ariba Buyer, Ariba Marketplace, Ariba Dynamic Trade and Ariba Commerce Services Network are trademarks of Ariba, Inc. All other trademarks are property of their respective owners.

Informatica, PowerCenter.e and Informatica CommerceAnalytics for Ariba are trademarks or registered trademarks of Informatica Corporation. All other company and product names may be trademarks of their respective owners.

Media Contacts:

Samantha Moore
Informatica Corporation
(650) 687-6361
smoore@informatica.com

Louise Runkle
Ariba, Inc.
(650) 930-8354
lrunkle@ariba.com