Keeping track of different versions and iteration of software. It is management of all test items like req docs ,design docs ,tools ,software plans etc. It ensures all items of test ware are identified, version controlled changes tracked etc. so that we can know which version of red docs maps version of design doc maps to which version of test procedure or test cases etc. It is also used to make sure that all team members are using correct versions of FRD, BRD etc.

Versioning of a software-If there is a small change software the digit after decimal will be changed, otherwise if there is a major change the digit before the decimal will ALSO be changed Small change-v1.1 --->1.2 Large Change-v1.1---->2.0