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Message Icon Topic: Equivalence Class Partitioning

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varsha
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Quote varsha Replybullet Topic: Equivalence Class Partitioning
    Posted: 02Apr2007 at 11:48pm
What is Equivalence Class Partitioning (ECP or EP)?

Equivalence Class Partitioning is tests based on evaluating input or output conditions and separating them into two or more sets
    - Reduce # of tests to achieve "reasonable" coverage
    - Covers a large set of possible data
    - 2 basic sets: Valid class and Invalid class sets

Equivalence classes are formed by a partition of a set made up of subsets whose union is the entire set. For example, in the triangle program a test for an equilateral triangle may include the inputs (6,6,6). Another test with numbers from the same subset (such as 8,8,8) would likely not produce a different result from the previous test. From a code implementation view, the data is handled the same way
so the second test case using data from the same equivalence class can be considered a redundant test case.


Edited by moderator - 04May2007 at 11:21pm



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