Kirk Cruikshank Joins Silicon Valley Start-Up as Chief Executive Officer.

SUNNYVALE, Calif.--(BUSINESS WIRE)--Sept. 14, 1998--Hyperion Solutions Corporation (Nasdaq:HYSL), a leading provider of analytic application software for reporting, analysis, modeling and planning, today announced that Kirk Cruikshank has resigned his position as senior vice president of marketing to take the position of president and CEO for a Silicon Valley start-up.

Cruikshank served as the vice president of marketing for Arbor Software from January 1993 to August 1998 and became the senior vice president of marketing for Hyperion Solutions when Arbor Software and Hyperion Software merged on Aug. 24, 1998.

"Kirk played a critical role in building Arbor Software from a venture capital start-up into a successful public company," said John Dillon, president and CEO of Hyperion Solutions. "He helped establish the market for OLAP (online analytical processing) and many credit him as being the 'father of OLAP.' More recently, Kirk helped ensure the smooth and successful integration of Arbor and Hyperion into Hyperion Solutions. All of us wish Kirk the very best."

"My nearly six years at Arbor and my recent work at Hyperion Solutions have been rewarding and enjoyable," said Kirk Cruikshank.

"At this point in my career, I'm eager to take on new challenges and focus on helping to build a new market with a fast-growing Silicon Valley start-up. Hyperion Solutions has the vision, the products and more importantly the people in place to lead the analytic application software market. I'm looking forward to watching the Hyperion team build an even larger and more successful company."

In a separate press release today, Hyperion Solutions announced that Bill Clark, former vice president of marketing for Hyperion Solutions, will assume Cruikshank's position as senior vice president of marketing. Clark has relocated from Stamford, Conn. to run marketing from Hyperion Solutions' headquarters in California.

Clark and Cruikshank collaborated extensively during the merger, working together for more than three months to shape the company's vision and strategy to lead the analytic application software market.

About Hyperion Solutions

Hyperion Solutions Corporation (Nasdaq:HYSL), formed through the merger of Hyperion Software and Arbor Software, is a leading provider of analytic application software for reporting, analysis, modeling and planning. Hyperion's family of packaged analytic applications, OLAP server, and developer and end-user tools are in use by more than 4,000 customers worldwide, including more than 60 of the Fortune 100 and more than 40 of the Financial Times European Top 100.

Hyperion Solutions has established partnerships with more than 300 leading data warehousing, OLAP tools, services, ERP, packaged application, and platform vendors to extend the value of the company's products and services and deliver maximum flexibility and choice to customers.

The company is headquartered in Sunnyvale, and has more than 1,800 employees in 26 countries. Information on Hyperion's products and services is available at http://www.hyperion.com, [e-mail], or 800/286-8000.

Note to Editors: Hyperion is a registered trademark and Hyperion Solutions is a trademark of Hyperion Software Operations Inc., a wholly-owned subsidiary of Hyperion Solutions Corporation. Arbor is a registered trademark of Hyperion Solutions Corporation. All other trademarks and company names mentioned are the property of their respective owners.

CONTACT: Hyperion Solutions Corporation

Joanna McMillan, 408/220-8075

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Alan Mangelsdorf, 203/703-3137

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