What Software Testing Is—and Isn't
Informally, software testing (or just “testing” in the context of this book) is the process of uncovering evidence of defects in software systems. A defect can be introduced during any phase of development or maintenance and results from one or more “bugs”—mistakes, misunderstandings, omissions, or even misguided intent on the part of the developers. Testing comprises the efforts to find defects. Testing does not include efforts associated with tracking down bugs and fixing them. In other words, testing does not include the debugging or repair of bugs.[1]
[1] We recognize that some people who test software are also responsible for debugging that software. This is particularly true during unit testing and integration ...
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