o Writing (Items Features - Testing Conditions - Test Cases), o Using BlackBox Techniques (BVA – EP - Decision Tables – State Transitions),, o Functional, Non-Functional, System, Integration, and User Acceptance Testing, o Writing Business Scenarios, o Play a major role to improve quality, functionality, reliability and usability of software products. o Provide feedback and recommendations to developers on software usability, Performance and functionality. o Writing New Requirements for new internal applications, o New Requirements Analysis and delivered external applications,