Test Plan Identifier Each test plan should have a unique identifier so that it can be associated with a specific project and become a part of the project history. The project history and all project-related items should be stored in a project database or come under the control of a configuration management system. Organizational standards should describe the format for the test plan identifier and how to specify versions, since the test plan, like all other software items, is not written in stone and is subject to change. A mention was made of a configuration management system. This is a tool that supports change management. It is essential for any software project and allows for orderly change control. If a configuration management system is used, the test plan identifier can serve to identify it as a configuration item.