Control changes to configuration items.

Control is maintained over the configuration of the work product baseline. This control includes tracking the configuration of each configuration item, approving a new configuration if necessary, and updating the baseline.

The acquirer decides which configuration items require version control, or more stringent levels of configuration control, and establishes mechanisms to ensure configuration items are controlled. Although the supplier may manage configuration items on the acquirer’s behalf, the acquirer is responsible for approval and control of changes to these configuration items.

Typical Work Products

1.    Revision history of configuration items

2.    Archives of baselines

Subpractices

1.    Control changes to configuration items throughout the life of the product.

2.    Obtain appropriate authorization before changed configuration items are entered into the configuration management system.

3.    Check in and check out configuration items in the configuration management system for incorporation of changes in a manner that maintains the correctness and integrity of configuration items.

4.    Perform reviews to ensure that changes have not caused unintended effects on the baselines (e.g., ensure that changes have not compromised the safety and/or security of the system).

5.    Record changes to configuration items and reasons for changes, as appropriate.