The specification of test cases is the second step in the fundamental test process (FTP) defined in the Introduction. The terms specification and design are used interchangeably in this context; in this section we discuss the creation of test cases by design.

The design of tests comprises three main steps:

  1. Identify test conditions.

  2. Specify test cases.

  3. Specify test procedures.

Our first task is to become familiar with the terminology.

A test condition—an item or event of a component or system that could be verified by one or more test cases, e.g. a function, transaction, feature, quality attribute, or structural element.

In other words, a test condition is some characteristic of our software that we can check with ...

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