Rational Synergy
| Company type | Software product |
|---|---|
| Industry | Software configuration management |
| Predecessor | Synergy (formerly Continuus Software) |
| Founded | 1988 |
| Founder | Pete Orelup |
| Headquarters | Irvine, California , United States |
| Products | Software configuration management solution |
| Parent | IBM |
Rational Synergy is a software configuration management (SCM) solution designed to oversee all development artifacts, such as source code, documentation, graphics, executables, and libraries. It functions as the backend repository for Rational Change, delivering a unified environment for configuration and change management tailored to organizations that demand stringent SCM procedures and build traceability. The term Synergy reflects its deep integration at the database level with change management systems, providing valuable visibility into build-related issues.
History
The origins of Synergy trace back to 1988 when Pete Orelup initiated it as a research endeavor at Computers West in Irvine, California. Initially, it supported finance and insurance software operating on the Pick OS. By 1989, the company pivoted toward SCM, rebranding itself as CaseWare, Inc., and launched Amplify Control—a Unix-based SCM platform targeting Sun Solaris systems. To surpass limitations associated with compiled languages like C++, they developed ACcent—a language compiled to bytecode running on a virtual machine with automatic memory management—preceding Java by approximately five years. Amplify Control was built on a scalable client-server model featuring a flexible SQL schema that permitted customers to extend data types without altering the schema itself. Additionally, it incorporated distributed build automation and continuous integration functionalities comparable to contemporary tools such as Maven and Hudson. A bug tracking module was subsequently integrated.
Although CaseWare experienced some market traction, it lost ground to IBM’s ClearCase due to management difficulties. Following financial setbacks and key developer departures in 1991, new leadership revived the firm under the name Continuus Software in 1993.
By 1997, Continuus neared $100 million in annual revenue and expanded its presence into Europe by opening a help desk in Ireland to provide around-the-clock support targeting Fortune 500 companies. Its principal competitors included Rational ClearCase—favored by engineering and scientific sectors—and Platinum Harvest—popular within financial services. Continuus strategically hired configuration management experts from its customer base as sales engineers.
The Y2K crisis significantly increased demand for SCM products like Continuus. As organizations grew, simpler tools such as Visual Sourcesafe and PVCS became inadequate, prompting a shift toward more advanced workflow management solutions. Continuus’s Task Based CM customization—originally developed for client Tandem Computer—offered a competitive edge over ClearCase, which often required expensive customization services.
In response to the dot-com surge, Continuus adapted its middleware ("engine process") to operate within Tomcat using servlets, evolving into the CM/Synergy and PT/Synergy product lines. After porting its Informix database and server components to Windows Server platforms, it integrated with Visual Studio to replicate Visual Sourcesafe functionality directly within the IDE. Key customers included Walt Disney (addressing Y2K compliance), US Internetworking (which executed the largest transaction in early 1999), Remedy, Signet Bank, Bank of America, SAIC, and Novell.
Continuus went public on NASDAQ on July 29, 1999. In October 2000, Swedish software company Telelogic acquired Continuus for $42 million. Following acquisitions of QSS and the DOORS product suite, Telelogic rebranded Continuus as Synergy. In 2001, Telelogic terminated the entire Continuus Professional Services team to consolidate support under QSS services—a move that later proved problematic as some former employees transitioned into consulting roles with existing clients.
IBM acquired Telelogic in 2008 and incorporated Synergy into its Rational Software portfolio under the name Rational Synergy. In 2021 IBM announced plans to discontinue support and withdraw Rational Synergy along with Rational Change from the market.