The Software Test Life Cycle (STLC) is a series of activities performed by testing teams to ensure the quality of software.
Here's a detailed explanation of the stages in STLC.
1.Requirement Analysis: Understand and analyze the requirements to identify testable aspects. Testers work closely with stakeholders to comprehend the expected behavior of the software.
2. Test Planning: Develop a detailed test plan outlining the testing approach, resources, schedule, and activities. This phase involves defining the scope, objectives, and criteria for testing.
3. Test Design: Create detailed test cases based on the requirements and design specifications. Testers specify the test data, expected outcomes, and the sequence of execution. This phase also involves creating test scripts if automation is involved.
4.Test Environment Setup: Set up the required test environment, including hardware, software, and network configurations. This ensures that the testing team has a stable and controlled environment for conducting tests.
5. Test Execution: Execute the test cases in the defined test environment. During this phase, testers run the tests, record the outcomes, and compare the actual results with the expected results. Defects are identified, documented, and reported back to the development team for resolution.
6. Defect Reporting: Any discrepancies between expected and actual results are documented as defects. Testers prepare defect reports, including information like steps to reproduce, severity, and priority. These reports are then communicated to the development team for fixing.
7.Defect Retesting: After developers fix the reported defects, testers re-run the specific test cases to ensure that the issues are resolved. If the defects are fixed correctly, the issues are closed. If not, the defects are reopened, and the cycle continues until the issues are resolved satisfactorily.
8. Regression Testing: When new features are added or defects are fixed, regression testing ensures that existing functionalities still work as intended. Previously executed test cases are re-executed to validate that recent changes have not adversely affected the existing features.
9. Test Closure: Once all test cases are executed, and the software meets the required quality standards, a test closure report is prepared. This document summarizes the testing activities, including test coverage, defects found and fixed, and overall testing results.
10. Post-Implementation Support: Even after the software is deployed, testers might still be involved in monitoring the software in the live environment, identifying and fixing issues that might arise post-deployment.
Each of these stages is crucial for ensuring the quality and reliability of the software being developed. By following the Software Test Life Cycle, testing teams can systematically validate the software and help deliver a high-quality product to the end-users.