BP Affirms Vitria as Global Integration Backbone; Eight Vitria BusinessWare Integration Projects Have Gone Live at BP in 15 months.

Business Editors/High-Tech Writers

SUNNYVALE, Calif. & BRACKNELL, United Kingdom--(BUSINESS WIRE)--Jan. 8, 2002--Vitria (Nasdaq:VITR), a leading collaboration platform and collaborative applications provider, today announced that BP (NYSE:BP) has commenced its 10th integration project with Vitria. This comes only 15 months after Vitria BusinessWare was named as BP's corporate standard for business process integration, following an enterprise agreement. BP has made a multi-million dollar investment in Vitria and plans to more than double that commitment in the next two years.

"BP's long term driver for integration is the creation of global process efficiency across the business, in order to reduce costs and improve profitability," said John Melo, BP Downstream vice president for digital business. "The integration work completed with Vitria contributes to this long term objective and we are committed to making Vitria our worldwide process integration standard."

First announced as a Vitria customer in September 2000, the petroleum and petrochemical company chose Vitria to integrate existing Enterprise Resource Planning systems and new eBusiness solutions sourced from all parts of the industry. Today, the completed projects cover integration of systems in all BP business streams across the globe, including Integrated Demand Supply Planning, Export Documentation, Global eProcurement, Retail Fleet Card Account Management, Lubricants B2C Order Processing, Retail Fuel Pricing, ERP Consolidation and Health, Safety & Environmental enablement.

"BP continues to execute on its unique cost management excellence through leveraging technology such as BusinessWare for continuous improvement of business processes," said JoMei Chang, CEO of Vitria Technology. "We're thrilled that the company has chosen to expand its relationship with us; it's a true testament to the benefits of the Vitria BusinessWare platform."

About Vitria

Vitria Technology, Inc. is a leading collaboration platform and collaborative applications provider. Vitria BusinessWare integrates applications and automates mission-critical business processes within and across the extended enterprise, reducing time to market, shortening lead times, lowering operating costs, and increasing customer satisfaction. Vitria is a global software company with over 25 offices in North America plus international offices in Australia, Canada, France, Germany, Italy, Japan, Korea, United Kingdom, Singapore, Spain, Switzerland and Taiwan. Vitria is a publicly traded company (Nasdaq:VITR) based in California. For more information, call 408/212-2700, visit the company's Web site at www.vitria.com or send email to [e-mail].

About BP

BP is one of the world's largest petroleum and petrochemicals companies. Its main activities are exploration and production of crude oil and natural gas; oil refining; gas marketing and power generation; retailing and transportation; and the production and marketing of petrochemicals. We also manufacture and sell photovoltaic panels for power generation.

This press release includes forward-looking statements, including statements relating to future revenue growth, goals and future business opportunities that are subject to risks, uncertainties and other factors that could cause actual results to differ materially from those referred to in the forward-looking statements. Such factors include, but are not limited to, failure to meet financial and product expectations of analysts and investors, risk as related to market acceptance of Vitria's product and alliance partner's products, deployment delays or errors associated with these and new products of Vitria and partners, hardware platform incompatibilities, need to maintain and enhance certain business relationships with system integrators and other parties, ability to manage growth, activities by Vitria and others regarding protection of proprietary information, release of competitive products and other actions by competitors and economic conditions in either domestic or foreign markets. These and other risks related to Vitria are detailed in Vitria's Annual Report on Form 10-K for the year ended Dec. 31, 2000, filed with the SEC on March 29, 2001, and in Vitria's quarterly reports on Form 10-Q as filed with the SEC. Vitria does not undertake an obligation to update forward-looking statements.