December 18, 2008

Testing process

The process starts with a program embedded in an environment, such as a computer, an operating system, or a calling program. We understand human nature and its susceptibility to error. This understanding leads us to create three models:
1) A model of the environment,
2) A model of the program, and
3) A model of the expected bugs.
From these models we create a set of tests, which are then executed. The result of each test is either expected or unexpected. If unexpected, it may lead us to revise the test, our model or concept of how the program behaves, our concept of what bugs are possible, or the program itself. Only rarely would we attempt to modify the environment.

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