Version Control Combines procedures and tools to manage different version of configuration objects that are created during the software process. A version control system implements or is directly integrated with four major capabilities:

• A project database that stores all relevant configuration objects,
• A version management capability that stores all version of
  configuration object
• A make facility that enables the software engineer to collect all relevant configuration objects
• Construct a specific version of the software.

A number of version control systems establish a set – a collection of all changes (to some baseline configuration) that are required to create a specific version of the software.

“Changes set” captures all changes to all files in the configuration along with reason for changes and details of who made the changes and when.