Black Box Test Techniques. Equivalence Partitioning

Black Box Test Techniques. Equivalence Partitioning
September 09 10:00 2011 Print This Article


Test cases should be designed to exert divisions. A test case may exert any quantity of divisions. A test case shall comprise the following:

  • the divisions exerted;
  • the input to the component;
  • the expected result of the test case.

Test cases are designed to exert divisions of valid values, and invalid input values. As well test cases can be designed to verify that invalid output values cannot be induced.

Black Box Test Techniques. Equivalence Partitioning


Equivalent partition uses a model of the component that partitions the output and input values of the component. The input and output values are derived from the specification of the component’s behaviour.

Such model should include divisions of input and output values. Each division should hold a set or line of values, elected in such way that all the values can rationally be expected to be treated by the component in the equal way. Both valid and invalid values are partitioned in this way.

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Nataliia Vasylyna
Nataliia Vasylyna

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