IBM Configuration Management Version Control

Configuration Management Version Control (CMVC) is a software package that serves as an object repository, and performs software version control, configuration management, and change management functions. It was sold and distributed through the mid-late 1990s by the International Business Machines Corporation.

CMVC sales and support terminated some time after IBM acquired Rational Software, its functions being superseded by products in the Rational product line (IBM Rational ClearCase and IBM Rational ClearQuest). However, some customer installations of CMVC remain in use as of 2007, and it is still widely used within IBM.

CMVC has been highly criticized for being the most complex and bloated piece of software ever produced by IBM. And this is saying a lot since IBM has done a great job of producing some highly complex and useless softwares in its history.