The Software Testing Life Cycle (STLC) is a set of activities carried out to perform software testing in a systematic and organized way. Iterative STLC suggests that these testing activities are performed iteratively, potentially going through multiple cycles of testing during the development process.
Here's a general overview of the stages in an iterative STLC:
Requirements Analysis: Understand and analyze the requirements to identify testable features and define testing objectives.
Test Planning: Develop a comprehensive test plan outlining the testing approach, resources, schedule, and deliverables. This plan may evolve with each iteration.
Test Design: Create test cases based on the requirements and design specifications. In an iterative approach, this phase may need constant updates as the software evolves.
Test Execution: Execute the test cases, record results, and identify defects. This phase may be repeated as new features are added or modified.
Defect Reporting: Report and track defects found during testing. Communicate with the development team for resolution.
Regression Testing: Perform regression testing to ensure that existing functionality is not adversely affected by new changes. This step is crucial in an iterative model as new iterations can introduce changes that might impact existing features.
Test Cycle Closure: Review the test cycle, summarize results, and gather metrics. Use this information to improve future iterations.
Re-Planning: Based on the feedback and results from the previous iteration, re-plan the testing activities for the next iteration. This may involve adjusting test cases, adding new ones, or changing the testing strategy.
In an iterative model, the development and testing activities are often overlapping, and feedback from testing is used to make improvements in subsequent iterations. This iterative process continues until the software meets the desired quality and standards.
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