* Writing a test case is said to be the most important activity of the test execution process which requires writing skills as well as in-depth knowledge of the application to make effective and reusable test cases.
Few important points that should be considered while writing test cases includes :
* There should be a clear understanding of the client’s requirements before beginning to write the test cases. Nothing should be assumed and every doubt regarding the requirements should be cleared.
* Every requirement should be included in the form of test cases and nothing should be left out. Usually Traceability matrix is maintained to keep a check on every requirement implementation and testing completion.
* As per the requirement document specifications, every functional and non-functional requirement including UI interface, compatibility should be covered.
* Test cases should be checked from time to time for no repetition or redundancy.
* Priority is an important factor that should be set for test cases while writing. This priority helps the tester to test the application first with the high priority tests cases which include basic functionality, then the medium and later the low priority test cases.
* For a particular release, test cases can also be built Sprint wise so that the tester, as well as the developer, can analyze the quality of the product based on test case execution.
* Structure of test cases should be easily understood and must be in a simple language. The input data values for test cases should be valid as well as in a wide range.
