CONTACT INFORMATION

Siebel Systems
www.siebel.com

Peace Software
www.peace.com

ATLANTA, GA., March 13, 2000 - Peace SoftwarePeace Software, the leading provider of web-based customer information systems (CIS) for the deregulated energy market, and Siebel Systems, Inc. (Nasdaq: SEBL), the world's leading supplier of eBusiness application software, today announced an alliance to provide the energy market with a complete web-based customer service management system.

As competition increases through deregulation of the industry nationwide, energy companies are relying on the Internet in order to service customers more effectively. "Fourteen states have already opened up their energy markets to competition, and utility companies are looking to service their customers over the Internet to Reduce corporate costs and improve customer service," said Patrick Hodges, utilities analyst, Frost and Sullivan. "Peace's Energy CIS, which recently was awarded the Frost and Sullivan 1998 Market Engineering Entrepreneurial Company Award, and Siebel eEnergy offer a powerful solution for utility companies looking to Upgrade their IT systems to compete in today's market."

Peace Software has joined the Siebel Alliance Program as a Software Partner and will integrate its web-based CIS, Energy, with Siebel eEnergy to Offer the energy industry a complete customer information management solution.

Energy offers advanced customer management and billing functionality for deregulated needs, including integrated enrollments, trading, settlements and profitability analysis, all driven by a 3-D web browser. Siebel eEnergy provides companies with integrated sales, marketing, service and eCommerce applications to manage customer relationships. In combination, the products will offer utility companies and energy providers the full complement of customer servicing capabilities and enable them to better compete in a deregulated market.

"Siebel eEnergy and Peace's Energy CIS, offer a compelling, state-of-the-art solution for the energy market," said Jim McCray, director, Siebel Communications and Energy. "In addition to technical collaboration, we will team with Peace on sales and marketing opportunities to leverage both companies' experience in web-based solutions, the energy industry and deregulation."

"With more than 8 years of experience in the deregulated utility market worldwide, Peace's Energy CIS system is the market leader for web-based customer service," said Brian Peace, chief executive and founder, Peace Software. "Our alliance with Siebel Systems will expand the breadth of technology and services we offer our mutual customers, enabling them to more efficiently and cost-effectively manage their customer relationships to remain competitive in a deregulated environment."

About Peace Software
Peace Software develops and implements Energy, the Customer Information System for deregulated utilities. Peace’s systems are web browser-based solutions that operate on open hardware and relational databases. Peace’s experience around the world in deregulated markets uniquely enables the company to provide competitive advantage to Customers. Additional information about Peace is available at www.peace.com.

About Siebel Systems
Siebel Systems, Inc. (Nasdaq: SEBL) is the world's leading provider of eBusiness applications software. Siebel Systems provides an integrated family of eBusiness application software enabling multi-channel sales, marketing and customer service systems to be deployed over the Web, call centers, field, reseller channels, retail and dealer networks. Siebel Systems' sales and service facilities are located in more than 28 countries. For more information, please visit Siebel's Web site at www.siebel.com.

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