A test plan is a set of test cases which are to be tested in a particular period for a particular purpose. A test plan is based on one or more test catalogs.

Before testing, put all the test cases which are relevant for the test in a test plan, basing its structure and contents on one or more test catalogs.

After testing, keep the test plan to document the test.

A test plan comprises the test plan structure and the test plan attributes.

The test plan structure is based on the extended application hierarchy structure, in which the test catalogs with their test cases are entered. The test plan structure is defined by selecting the relevant test catalogs for the test plan. The structure is refined by then selecting individual test cases.

Test plan attributes are for test plan management.