What are the main phases of STLC and briefly explain each phase?

Software Testing Life Cycle (STLC) consists of the following main phases:

1. Requirement Analysis: In this phase, the testing team analyzes the requirements to understand the scope of the project and testing needed.
2. Test Planning: Test planning involves defining the test strategy, scope, objectives, resources, and schedule for the testing process.
3. Test Design: Test design involves developing test cases and test scenarios based on the requirements and design documents.
4. Test Execution: In this phase, the test cases are executed, defects are identified and reported, and regression testing is performed.
5. Defect Tracking & Management: Defects found during testing are tracked, reported, and managed to ensure they are fixed before the release.
6. Test Closure: The final phase involves evaluating the testing process, documenting the test results, and preparing a test closure report.

By following these phases in STLC, software testing teams can ensure thorough and effective testing of the software product.