how to compile good test case deeply and widely
how to compile good test case ,so deeply and widely,easy to find SW bug.
Re: how to compile good test case deeply and widely
If you are working on a existing product then write test cases based on defects filed against previous versions. If you are going to test a new application from scratch then you can either use functional requirements for writing test cases or you can actually test the software under dev environment. However you will need to be careful esp. w.r.t. skill development if you want to test under dev environment.