Gensym Corporation (OTC Bulletin Board: GNSM), a leading provider of rule engine software for mission-critical solutions, today unveiled its webSCOR.com service for collaborative design of supply-chain networks, policies, and practices at the Supply-Chain World conference in Anaheim, California. The new Web-based service enables supply-chain professionals to model and simulate alternative designs to maximize performance across a range of operating scenarios.

Based upon the Supply Chain Council’s widely adopted Supply Chain Operations Reference model (SCOR) standard, webSCOR.com provides decision makers with a comprehensive design tool that is immediately ready for team collaboration via Web browsers. Unlike other supply-chain design approaches, webSCOR.com combines simulation of alternative supply-network configurations and business rule logic for policies and best practices.

"Supply-chain professionals are increasingly challenged to comprehensively design a holistic combination of supply networks, policies, and practices that best achieve operational agility and performance," said Kim Mayyasi, president and CEO of Gensym. "These design decisions are critical – they are central to competitiveness and can impact hundreds of millions of dollars in operating costs. Supply-chain decisions are becoming more critical with shorter product lifecycles, rapid demand fluctuations, unforeseen operational disruptions, and the trend towards real-time, demand-driven strategies. Through webSCOR.com, decision-making teams will now have the agility to effectively plan and respond to these types of dynamics."

With webSCOR.com, supply-chain professionals improve decision making by:

• Collaborating over the Web to build realistic supply-chain models using detailed SCOR processes across an organization, suppliers, and partners
• Dynamically simulating alternative designs and operating scenarios to assess results
• Automatically computing and documenting SCOR performance metrics
• Automatically determining required service levels
• Applying models and metrics based on SCOR to facilitate communication and collaboration across all supply-chain team members

SCOR Ready to Drive Decision Making

webSCOR.com automatically generates standardized SCOR metrics for each scenario, including metrics for inventory levels, asset calculations, order fulfillment response times, operating costs, and over 100 additional metrics, to ensure that decision teams can model and analyze supply chains to the depth and complexity required. From analysis of these metrics, supply-chain professionals can confidently drive decisions such as the number and location of distribution sites, required service levels for outsourced goods, demand push versus pull policies, inventory replenishment practices, business rules for delivery planning, and much more.

Gensym Partners See Value

webSCOR.com will enable Gensym’s partners to collaborate with their customers to drive critical supply-chain decisions. Gensym partner Supply Chain Process Improvements, Inc. (SCPI), is introducing webSCOR.com with Gensym at Supply-Chain World.

"We are very excited about the availability of such a powerful supply-chain tool over the Web as we work with our customers to analyze their supply-chain performance and risks," said Kevin Vahey, an SCPI principal. "The subscription approach will enable our customers to quickly realize value with minimal investment. We are currently working with a large, international packaging products company to apply webSCOR.com to analyze, and profitably improve, their key customer-facing processes."

"Our electronic manufacturing customers are faced with some of the most dynamic supply chains in the world," said Mitsunori Toyoda, a deputy general manager with Gensym partner Itochu Techno-Science Corporation (CTC), one of the largest IT solution providers in Japan. "Their short product lifecycles and hard-to-predict demands can push supply chains to the breaking point. The availability of a Web service such as webSCOR.com will enable us to more effectively collaborate with these customers to help them manage dynamics. We look forward to using webSCOR.com."

Proven Technology Based on Leading Rule Engine Platform

webSCOR.com extends Gensym’s proven G2 e-SCOR product for on-demand use over the Web. Built upon Gensym’s award-winning G2® real-time rule engine platform, G2 e-SCOR’s technology has driven critical supply-chain decisions in a diverse group of enterprises, including Hitachi, HP, the U.S. Army, and others, that has resulted in hundreds of millions of dollars in estimated savings.

webSCOR.com Advances Gensym’s Rule Engine Technology

"webSCOR.com is an important step forward for our core G2 real-time rule engine technology," added Mayyasi. "By delivering this G2-based supply-chain tool as a Web-hosted service, we’re paving the way for other G2-based Web services. We anticipate this capability will be of strong interest to our OEM and VAR partners for delivery of their solutions."

Availability and Pricing

webSCOR.com is scheduled for commercial availability in July, 2005. Gensym is inviting supply-chain professionals to be foundation users and to participate in prerelease testing of webSCOR.com. Please visit Gensym at www.webSCOR.com for more information.

Pricing will be on a subscription based for less than $1000 per month per user. Subscriptions include remote hosting of the server and ongoing software maintenance and support.

About Gensym Corporation

Gensym Corporation (www.gensym.com) is a leading provider of rule engine software and services for mission-critical solutions that automate decisions in real time. Gensym’s flagship G2 software applies real-time rule technology for decisions that optimize operations and that detect, diagnose, and resolve costly problems. With G2, the world’s largest organizations in manufacturing, utilities, communications, transportation, aerospace, finance, and government maximize the agility of their businesses and achieve greater levels of performance. Gensym and its numerous partners deliver a range of services throughout the world, including training, software support, application consulting, and complete solutions.

Gensym and G2 are registered trademarks of Gensym Corporation. SCOR is a service mark of the Supply-Chain Council. SCOR is a registered trademark of PRTM. All other trademarks are property of their respective owners.

This news release contains forward-looking statements as that term is defined in the Private Securities Litigation Reform Act of 1995. All statements, other than statements of historical fact, contained in this press release regarding our products, future operations, prospects, plans and objectives are forward-looking statements. Actual results may differ materially from those indicted by such forward-looking statement as a result of various important factors, including risks and uncertainties regarding acceptance of our webSCOR.com product by users, the impact of intense competition, the effectiveness of our indirect distribution channel and strategic partnerships, fluctuations in our customers’ demand for our products, and other factors detailed in Gensym’s most Annual Report on Form 10-K for the fiscal year ended December 31, 2004 filed with the Securities and Exchange Commission. Although Gensym believes the expectations reflected in the forward-looking statements are based on reasonable assumptions, it can give no assurance that its expectations will be attained. Gensym Corporation disclaims any intent or obligation to update any forward- looking statement.