Configuration management is the process of managing products, facilities and processes by managing the information about them, including changes, and ensuring they are what they are supposed to be in every case.
For testing, configuration management will involve controlling both the versions of code to be tested and the documents used during the development process, e.g. requirements, design and plans.
In both instances configuration management should ensure traceability throughout the test process, e.g. a requirement should be traceable through to the test cases that are run to test its levels of quality, and vice versa.
Effective configuration management is important for the test process as the contents of each release ...