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There are 6 factors (in 3 groups) affecting test-case effectiveness: (A) Test-design phase factors - (1) Incorrect test specifications, (2) Incomplete test design, (3) Incomplete test suite; (B) Test-execution phase factors - (4) Test execution problems; (C) Test-planning phase factors - (5) Incorrect functional specifications, (6) Incomplete functional specifications.
All these factors will reflect on test-case effectiveness.
During the analysis of the test results one of tricks will be classification of test-case escapes based on the shown logic (Fig.2). This will allow to analyze not only the quality of the product being tested but used test quality and assumption quality during the test preparation.
By using algorithm shown on the Fig.2 all test escapes can be grouped into 6 groups corresponding to 6 factors above.
As we can see from the diagram, escapes does not always indicate product
fails, but caused by either incomplete functional specification, or by
incorrect functional specification.
Page updated: 04 May 2003 22:05 +0400