What is equivalence partitioning?
Software Engineering
Computer Science Engineering
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Knowledge
Equivalence partitioning is a software testing technique that divides the input domain of a software application into equivalence classes, or partitions. Each equivalence class represents a set of inputs that behave the same way with respect to the application.
Testing is then performed on a representative input from each equivalence class. This approach to testing can help to reduce the number of test cases that need to be created, while still ensuring that the application is tested thoroughly.
For example, consider a software application that allows users to enter their age. The age input could be partitioned into three equivalence classes:
Testing would then be performed on a representative input from each equivalence class. For example, a valid age could be 18, an invalid age could be -1, and an empty string could be "".
Equivalence partitioning is a powerful testing technique that can help to improve the quality of software applications. It is a relatively simple technique to understand and apply, and it can be used to test a wide variety of software applications.
Here are some of the benefits of equivalence partitioning:
Reduces the number of test cases: Equivalence partitioning can help to reduce the number of test cases that need to be created, by grouping similar inputs into equivalence classes.
Increases the effectiveness of testing: Equivalence partitioning can help to increase the effectiveness of testing, by ensuring that all possible inputs are covered, even if they are not all tested directly.
Improves the efficiency of testing: Equivalence partitioning can help to improve the efficiency of testing, by focusing on the most important inputs.
Here are some of the challenges of equivalence partitioning:
Determining equivalence classes: The first challenge is to determine the equivalence classes for the input domain. This can be a difficult task, as it requires an understanding of the application and how it will be used.
Creating test cases: Once the equivalence classes have been determined, test cases need to be created for each class. This can be a time-consuming task, but it is important to ensure that all possible inputs are covered.
Validating test cases: It is important to validate test cases to ensure that they are effective. This can be done by running the test cases and checking the results.
Overall, equivalence partitioning is a valuable testing technique that can help to improve the quality of software applications. It is a relatively simple technique to understand and apply, but it can be challenging to determine the equivalence classes and create effective test cases.