SAN FRANCISCO--(BUSINESS WIRE)--June 4, 2001--Object Design, a division of eXcelon(TM) Corporation (NASDAQ:EXLN) of Burlington, Mass., and Spectrum Software Inc. of Atlanta, jointly announced today, here at JavaOne, that Object Design's PSE Pro for Java is integrated into the SpectrumSCM (Source Configuration Management) system (also announced today). PSE Pro is the embedded data caching engine for SpectrumSCM which helps software developers manage today's diverse software projects that often include millions of lines of code and hundreds of developers around the world.

"We take a very disciplined approach to software project management at Spectrum," said Sarathi Srinivasan, Spectrum president. "With SpectrumSCM we wanted to create a next-generation, 100 percent Java, platform-portable SCM system that mirrors today's worldwide, distributed approach to software development. PSE Pro gives us an outstanding embedded data cache that answers all of our requirements for persistence, performance and code management in a distributed, pure-Java environment."

As a key embedded storage engine, PSE Pro for Java enables SpectrumSCM to provide a single SCM development environment that controls all versions of the code in real-time in a networked repository. The PSE Pro architecture enables a distributed application to deliver high degrees of performance and scalability. This allows SpectrumSCM to support widely disbursed software developers and give them instant access to the latest information about code status in a closely controlled and monitored development environment.

The PSE Pro for Java engine organizes SpectrumSCM's software asset and value data to facilitate the management of code development, version control, release management, process control management and branching. As a persistent cache, PSE Pro also enables the tracking, auditing and reporting of software development activities, changes and updates.

"Spectrum has developed a distributed, platform independent tool that is redefining the SCM market," commented Kenneth Rugg, Object Design vice president of product development and chief technology officer. "PSE Pro, as an embedded engine, takes care of caching and data management transparently. This lets Spectrum developers concentrate on the value-added aspects of SpectrumSCM which in turn allows their customers to bring better products to market more quickly, efficiently and cost effectively."

About Spectrum

Spectrum Software is a decade-old, proven software systems design and services firm providing cost-effective solutions to large and small businesses. The company's Software Services Division specializes in fixed-cost software development projects, software maintenance, reengineering and software consulting, while Spectrum's Multimedia Division focuses on the development of new computer-based training products and multimedia software for children. The Multimedia Division's flagship product is "Dee Cee Dreams," a series that uses music, animation and comedy to teach social and moral values to children. For more information on Spectrum Software and SpectrumSCM, check out the company's Web site at www.spectrumsoftware.net or call 770.448.8662.

About Object Design

Object Design, a division of eXcelon Corporation (NASDAQ:EXLN), is the leading provider of native C++ and Java data management solutions. The company develops and markets the ObjectStore(R) database management system and related products including Javlin(TM) and PSE Pro. The data management products are used by over 4,000 customers in the telecommunications, financial services and e-business markets, and by Independent Software Vendors (ISVs). The company backs its products with comprehensive training, services and support. Headquartered in Burlington, Massachusetts, Object Design sells and supports its products through branch offices across the U.S., international subsidiaries in the United Kingdom, Germany, The Netherlands, Japan and Australia, and a worldwide network of distributors. For additional information visit www.objectdesign.com.

"Safe Harbor" Statement under the Private Securities Litigation Reform Act of 1995: Statements in this press release regarding eXcelon Corporation's business, including future market opportunities and prospects, which are not historical facts are "forward-looking statements" that involve risks and uncertainties. For a discussion of such risks and uncertainties, which could cause actual results to differ from those contained in the forward-looking statements, see "Risk Factors" in the Company's Annual Report or Form 10-K for the most recently ended fiscal year.

--30--es/bos*