Equivalence partitioning
Equivalence partitioning: Equivalence partitioning is a method for deriving test cases. In this method, classes of input conditions called equivalence classes are identified such that each member of the class causes the same kind of processing and output to occur. In this method, the tester identifies various equivalence classes for partitioning. A class is a set of input conditions that are is likely to be handled the same way by the system. If the system were to handle one case in the class erroneously, it would handle all cases erroneously. Equivalence partitioning drastically cuts down the number of test cases required to test a system reasonably. It is an attempt to get a good 'hit rate', to find the most errors with the smallest number of test cases. To use equivalence partitioning, you will need to perform four steps: Determining conditions to be Tested Defining Tests Designing test cases Identifying Final set of Test Cases Defining Tests A number of items must be cons...