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Software Testing Life Cycle, also named STLC, is a sequence of particular actions conducted during the testing process to ensure all the software quality objectives are met. STLC covers both Verification and Validation. It is a series of methodological activities that are necessary to perform to certify your software product. Every phase of the STLC has different objectives and deliverables, or you can understand based on different organizations, there can be different phases introduced in STLC. Nonetheless, the basis will remain the same.