BELLEVUE, Wash. - Onyx Software Corp. (Nasdaq: ONXS), a global supplier of enterprise-wide, customer-centric e-business applications, today announced the completion of a jointly developed integration utility with Xevo Corp., a provider of infrastructure solutions for application service providers (ASPs), which will drastically shorten the implementation cycle, reduce the technical complexity of system integration and deployment, and simplify ongoing management processes for businesses wishing to deploy Onyx's software suite. The end result is faster return on investment (ROI) for both ASPs and their customer base.

Xevo has created a provisioning and usage-metering agent for Onyx software being deployed by ASPs, which automates the software implementation process and allows ASPs to track which customers are using the hosted software, when they are using it and for how long.

"This is the first time this kind of capability has been weaved into a customer relationship management product for ASPs," said Scott Bledsoe, newly appointed vice president for the Onyx global business development (GBD) and outsourced applications division, Onyx's rapidly growing ASP group. "Traditionally, IT professionals at ASPs have had to write code or enter information by hand to manage installation, and track usage and user security. With this new agent, the learning curve for those responsible for implementing the Onyx 2000 software suite is greatly reduced, and a significant amount of time saved managing the entire process. Now everyone throughout the value chain can begin seeing results and profits right away."

The profits ASPs stand to gain are significant. Analysts at IDC predict the market to nearly quadruple from $2 billion now to $7.8 billion in 2004. As the hosted model gains momentum, ASPs are struggling with seamless, cost-effective and time-conscious processes for adding and modifying services. Xevo's ASP Workbench, in combination with the Onyx-specific agent, greatly reduces the amount of time it takes to have customers up and running on the Onyx platform.

"The ASP sales and delivery model represents a fundamental shift for the software industry," said Rick Hronicek, CEO and president of Xevo Corp. "Onyx is at the forefront of the ASP industry and has recognized the value of ASP Workbench early to help the industry navigate this shift. We have worked together to create a true joint offering, where ASP Workbench and Onyx provide ASPs everything they need to succeed from the beginning, making it much easier for them to meet the demands of their customers quickly and efficiently."

About Xevo
Xevo Corp., based in Marlborough, Mass., is a private, venture-funded company that develops and markets ASP Workbench, a comprehensive service management platform to enable the ASP industry. For more information, please visit www.xevo.com.

About Onyx Software
Onyx Software Corp. (Nasdaq: ONXS) is a global supplier of enterprise-wide, customer-centric e-business applications. Onyx Software's enterprise-class software connects and powers a company's entire e-business world, including customers, partners and sales, marketing, service and call center functions, making total customer and partner information available enterprise-wide.

Onyx Software's award-winning products are known for flexibility, reliability and ease of use, resulting in high return on investment, low total cost of ownership and industry-leading customer satisfaction. Onyx operates worldwide, supporting large, medium and small companies including Agile Software, American Express, Broadwing, Commerce One, Credit Suisse, Dreyfus, FirstWorld Communications, Hummingbird, NTL Group, Portland Trail Blazers, Prudential Securities, Sierra Health Services and Singapore Cable Vision. For more information, call 888-275-6699 or email info@onyx.com. Please visit www.onyx.com/annualreport to download the Onyx Software 1999 annual report and 10K.

This press release contains forward-looking statements. Forward-looking statements are based on the opinions and estimates of management at the time the statements are made and are subject to risks and uncertainties that could cause actual results to differ materially from those anticipated in the forward-looking statements. The words "believe," "expect," "intend," "anticipate," variations of such words, and similar expressions identify forward-looking statements, but their absence does not mean that the statement is not forward-looking. These statements are not guarantees of future performance and are subject to risks, uncertainties and assumptions that are difficult to predict. Factors that could affect Onyx's actual results include, but are not limited to, the "Important Factors That May Affect Our Business, Our Results of Operations and Our Stock Price" described in our quarterly report on form 10-Q for the quarter ending June 30, 2000. Readers are cautioned not to place undue reliance upon these forward-looking statements that speak only as to the date of this release. Onyx undertakes no obligation to update publicly any forward-looking statements to reflect new information, events or circumstances after the date of this release or to reflect the occurrence of unanticipated events.

Contact:
Shawn Yujuico VisiTech Public Relations Telephone: 817.267.9686 Fax: 810.885.5291

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MEDIA CONTACTS

Americas / Corporate Headquarters Mitch Briggs Public Relations Coordinator Consona Corporation Telephone: 317.249.1620 Mobile: 317.829.4210 Europe, Middle East, Africa Richard Furby Managing Director, Onyx UK Telephone: +44 (0) 1344 322 199 Fax: +44 (0) 1344 489 035 Japan Daisuke Sawamura Director, Professional Services Telephone: +81 03 5215 7311