Designing Test Cases A test case is a detailed procedure that fully tests a feature or an aspect of a feature. Whereas the test plan describes what to test, a test case describes how to perform a particular test. You need to develop a test case for each test listed in the test plan. A test case includes: The purpose of the test. Special hardware requirements, such as a modem. Special software requirements, such as a tool. Specific setup or configuration requirements. A description of how to perform the test. The expected results or success criteria for the test. Test cases should be written by a team member who understands the function or technology being tested, and each test case should be submitted for peer review. Organizations take a variety of approaches to documenting test cases; these range from developing detailed, recipe-like steps to writing general descriptions. In detailed test cases, the steps describe exactly how to perform the test. In descriptive test cases, the t...