Asyst Technologies Dramatically Increases Sales Success with Siebel eBusiness Applications.

Business Editors/High-Tech Writers

SAN MATEO, Calif.--(BUSINESS WIRE)--Feb. 5, 2002

Leading Provider of Integrated Automation Systems Enhances Sales

Effectiveness and Customer Satisfaction with

Siebel Sales and Siebel eConfigurator

Siebel Systems, Inc. (Nasdaq:SEBL), the world's leading provider of eBusiness applications software, today announced that Asyst Technologies (Nasdaq NM: ASYT), a leading provider of integrated automation systems for the semiconductor manufacturing industry, has measurably improved productivity and sales effectiveness following its deployment of Siebel eBusiness Applications. Siebel Sales and Siebel eConfigurator have allowed Asyst to increase the accuracy of materials inventory forecasting by 50 percent and reduce the product configuration cycle from 25 to 2 days, resulting in more accurate, streamlined processes and enhanced customer service.

Asyst Technologies provides the semiconductor industry with award winning automation systems that improve the productivity and yield of chip manufacturing. The Fremont, California-based company generated revenue of $491 million in its most recent fiscal year and serves industry leaders in both the OEM and End User segment. To provide its customers with first-class service and meet business goals, sales, marketing, and engineering professionals must communicate across multiple channels and global locations, sharing complete, up-to-date information. Recently, changing economic conditions and market demand created a need for Asyst to increase visibility of their sales pipeline and to reduce the time and resources spent to accurately configure systems. Asyst selected Siebel Sales, the market-leading enterprise application for sales professionals, to respond more effectively to sales opportunities and Siebel eConfigurator to ensure complex orders and quotes are accurate, complete, and valid.

"Using Siebel Sales and Siebel eConfigurator, Asyst is able to quickly and accurately track and coordinate product and customer information for use by our global work force," said Barney Huang, Senior Director, Asyst Technologies. "Siebel eBusiness Applications also largely eliminated manufacturing rework and costs associated with previously unbillable product configurations."

Before deploying Siebel eBusiness Applications, Asyst relied on disparate spreadsheets and multiple processes to track forecasts and configurations, which often resulted in duplicated efforts and incomplete information. With Siebel Sales and Siebel eConfigurator, the Asyst sales team is able to accurately forecast sales opportunities and map product configurations. Siebel eBusiness Applications provide Asyst sales, marketing, and engineering professionals with access to centralized product and pricing configuration as well as up-to-date customer requirements. Armed with this information, Asyst is better able to manage and deliver on customer expectations.

Asyst chose Siebel eBusiness Applications for Siebel Systems' proven, market-leading solution, ease of use, scalability, support for multiple languages and currencies and ability to integrate seamlessly with any existing or future back-end systems.

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 applications software, enabling multichannel 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 37 countries. For more information, please visit Siebel Systems' Web site at www.siebel.com.

Note to Editors: Siebel is a trademark of Siebel Systems, Inc. and may be registered in certain jurisdictions. All other product and company names mentioned are the property of their respective owners and are mentioned for identification purposes only.

Except for the historical information contained herein, this press release contains forward-looking statements that involve risk or uncertainties. Future operating results of Siebel Systems may differ from the results discussed or forecasted in the forward-looking statements due to factors that include, but are not limited to, risks associated with customer relations, such as the availability of Siebel Systems' products and services, customer implementation of products and services, relationships with customers, third-party vendors and systems integrators, concentration of revenues in a relatively small number of customers, existence of errors or defects in products, ability to successfully manage growth, significant current and expected additional competition and the need to continue to expand product distribution and services offerings. Further information on potential factors that could affect the financial results of Siebel Systems are included in Siebel Systems' Annual Report on Form 10-K, Quarterly Reports on Form 10-Q and its other filings with the Securities and Exchange Commission, which are available at www.sec.gov. Siebel Systems assumes no obligation to update the information in this press release.