“Revision control (also known as version control (system) (VCS), source control or (source) code management (SCM)) is the management of multiple revisions of the same unit of information. It is most commonly used in engineering and software development to manage ongoing development of digital documents like application source code, art resources such as blueprints or electronic models, and other projects that may be worked on by a team of people. Changes to these documents are usually identified by incrementing an associated number or letter code, termed the “revision number”, “revision level”, or simply “revision” and associated historically with the person making the change. A simple form of revision control, for example, has the initial issue of a drawing assigned the revision number “1″. When the first change is made, the revision number is incremented to “2″ and so on.” - Wikipedia

Software tools for revision control are increasingly recognized as being necessary for the organization of multi-developer projects. The FAS Network Support Group currently supports the Concurrent Versions System (CVS) and Subversion (SVN).