Software testing is the process of evaluating a software product to detect errors and failures and ensure its suitability for use. It can be performed manually (where testers use their skill, experience, intuition, and knowledge) or automatically (where the tester’s actions are guided by a test script).

The fundamental objective of the test process is to ensure that all specified requirements of a software system have been met by the development process and that no undetected errors remain in the system. However, the overall aim of testing is to provide customer or end-user value by detecting defects as early as possible.

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