The Art of Software Testing, Second Edition
by Glenford J. Myers, Corey Sandler, Tom Badgett, Todd M. Thomas
Chapter 2. The Psychology and Economics of Program Testing
Software testing is a technical task, but it also involves some important considerations of economics and human psychology.
In an ideal world, we would want to test every possible permutation of a program. In most cases, however, this simply is not possible. Even a seemingly simple program can have hundreds or thousands of possible input and output combinations. Creating test cases for all of these possibilities is impractical. Complete testing of a complex application would take too long and require too many human resources to be economically feasible.
In addition, the software tester needs the proper attitude (perhaps "vision" is a better word) to successfully test a software application. In some cases, the tester's attitude may be more important than the actual process itself. Therefore, we will start our discussion of software testing with these issues before we delve into the more technical nature of the topic.
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