Fair Isaac Acquires RulesPower Technology To Advance Business Rules Capabilities

(Minneapolis, Minnesota, USA) - Fair Isaac Corporation, the leading provider of analytics and decision management technology, announced today that it has acquired certain assets of RulesPower, Inc., a provider of high-performance business rules management systems. The addition of RulesPower's innovative, exclusive technology is intended to complement and advance the capabilities and user benefits of Fair Isaac's industry-leading Blaze Advisor rules management system.

Fair Isaac will integrate RulesPower's rules execution technology into Blaze Advisor, which will help organizations process and execute complex, high-volume business rules faster and more efficiently. The integration is also designed to enhance the performance of other Fair Isaac solutions in which Blaze Advisor is embedded, including Falcon™ Fraud Manager, Falcon™ ID solution, Capstone^® Decision Accelerator and more.

"Our acquisition of RulesPower technology is another investment in optimizing the value our customers can realize using Blaze Advisor and many other Fair Isaac solutions," said Mark Layden, vice president and general manager of Enterprise Decision Management software at Fair Isaac. "Blaze Advisor already delivers unmatched flexibility and agility to business rules users. We believe that integrating RulesPower's proprietary innovations will make Blaze Advisor even more compelling and valuable to more businesses across industries."

At the core of RulesPower's advanced business rules execution capabilities is a Business Logic Server driven by the company's proprietary RETE III execution engine. Designed for data- and rules-intensive organizations where optimal performance is critical, the RETE III engine helps users manage large amounts of data and execute rules faster and more efficiently than other rules management systems. Fair Isaac will combine these capabilities with Blaze Advisor's existing performance optimization capabilities, powerful rules repository, developer tools and templates for business user rules management.

The RETE III engine was developed by Charles Forgy, Ph.D., co-founder of RulesPower and inventor of the original RETE rules engine. Forgy will continue to work with Fair Isaac in the research and development of new rules management innovations.

The acquisition of RulesPower is consistent with Fair Isaac's strategy of adding innovative technologies, people and other assets that complement and add value to the company's existing product and technology offerings. Terms of the acquisition were not disclosed.

About Fair Isaac Blaze Advisor
Fair Isaac Blaze Advisor gives business users and analysts a powerful tool to update business strategies and ensure governance across critical enterprise information systems, using straightforward business terms. Business users are able to control business logic for their information systems and maintain application decision behavior without IT assistance, using intuitive Blaze Advisor rules maintenance applications. This increases business agility, allowing rules to be modified quickly and easily, and requiring IT to simply link and test the final applications.

About RulesPower
Headquartered in Burlington, Mass., RulesPower was co-founded in 2001 by business rules guru and father of all modern rule-engines, Charles Forgy, Ph.D., to address the next evolution in the development of the application architecture stack - the abstraction of business logic from the application layer. Today, RulesPower enables businesses to manage the creation and execution of business logic that drives applications. RulesPower was funded by Kodiak Venture Partners and Core Capital Partners.

About Fair Isaac
Fair Isaac Corporation (NYSE:FIC) is the preeminent provider of creative analytics that unlock value for people, businesses and industries. The company's predictive modeling, decision analysis, intelligence management, decision management systems and consulting services power billions of mission-critical customer decisions a year. Founded in 1956, Fair Isaac helps thousands of companies in over 60 countries acquire customers more efficiently, increase customer value, reduce fraud and credit losses, lower operating expenses and enter new markets more profitably. Most leading banks and credit card issuers rely on Fair Isaac solutions, as do insurers, retailers, telecommunications providers, healthcare organizations and government agencies. Through the www.myfico.com Web site, consumers use the company's FICO^® scores, the standard measure of credit risk, to manage their financial health.

Statement Concerning Forward-Looking Information
Except for historical information contained herein, the statements contained in this press release that relate to Fair Isaac are forward-looking statements within the meaning of the "safe harbor" provisions of the Private Securities Litigation Reform Act of 1995. These forward-looking statements are subject to risks and uncertainties that may cause actual results to differ materially, including any unforeseen technical difficulties related to the integration of acquired assets, the implementation, use and functionality of Fair Isaac offerings, the risks that customers will not perceive material benefits from the offerings, failure of the products to deliver the expected results, the possibility of errors or defects in the offerings, regulatory changes applicable to the use of consumer credit and other data, and other risks described from time to time in Fair Isaac's SEC reports, including its Annual Report on Form 10-K for the year ended September 30, 2004, and quarterly report on Form 10-Q for the period ended June 30, 2005. Forward-looking statements should be considered with caution. If any of these risks or uncertainties materializes or any of these assumptions proves incorrect, Fair Isaac's results could differ materially from Fair Isaac's expectations in these statements. Fair Isaac disclaims any intent or obligation to update these forward-looking statements.