Chapter 11. Fill the Bathtub: Test System Coverage and Quality

In this chapter, let's close our examination of the test system design and implementation process. First, let's look at a key consideration: knowing when enough tests have been created. Various ways in which we can measure the completeness of testing are often referred to as test coverage. It turns out that beneath this simple phrase runs a continuum of techniques. All these complementary techniques allow test professionals to measure the ways in which their tests do—and don't—address areas of interest.

Completeness of testing is certainly one important aspect of a good test system, but there are others. I'll wrap up this chapter by looking back at the entire test system design and ...

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