1. Understanding the software requirements. 2. Knowing how the end user will use the application. 3. Creating test cases from the user stories or from test scenarios. 4. Execute test cases (manual or automated) and analyze results. 5 .Evaluate product code according to specifications. 6. Create logs to document testing phases and defects. 7. if defect found,report it to developer and fix it. 8. Perform the task again where the defect is found. 9. Review and analyze system specifications. 10. Collaborate with QA Engineers to develop effective strategies and test plans.