What is the difference between test data and test case?

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What is the difference between test data and test case?

Test data refers to the input values or conditions that are used during the execution of a test case. It includes both valid and invalid data that is used to verify the functionality and behavior of the software being tested.

On the other hand, a test case is a set of preconditions, inputs, and expected outcomes that are designed to test a specific aspect or functionality of the software. It outlines the steps to be followed, the expected results, and any specific conditions or data that need to be used during the test.

In summary, test data is the actual data used within a test case, while a test case is a documented set of instructions and expected outcomes for testing a specific aspect of the software.