Final answer:
The purpose of exit criteria in software testing is to define when to stop testing.
Step-by-step explanation:
The purpose of exit criteria in software testing is to define when to stop testing. It is a set of conditions or criteria that must be met in order to determine whether testing can be considered complete. It helps ensure that the testing process is thorough and that all necessary requirements have been met before moving on to the next phase.
For example, in a unit testing scenario, the exit criteria may include that a certain percentage of test cases have passed, all high-priority defects have been fixed, and performance benchmarks have been met.
In summary, exit criteria help provide clarity and guidance on when testing activities can be concluded based on specific objectives and conditions.