What is Software Testing Life Cycle?

Software Testing Life Cycle (STLC) is a sequence of activities performed by testers such as
Requirement & Analysis – Understanding the client’s requirement and what actually requires, How to test the requirements,
Test Planning – what should be tested in an application, How and who will test the application
Test Case Design – test scenarios, mapping with requirement traceability matrix, test case creation, and test data used
Test Environment Setup – what hardware and software need to install or configure to build test environment.
Test Execution – running the application in order to verify features as per test case designed, reporting bugs, track the bugs and regression test till it gets resolved.
Test Closure – Creation of test reports, total bugs pending, critical bugs if any, justification for releasing application to client.