Quality Assurance (QA) is a systematic process aimed at ensuring that products and services meet specified requirements and standards. It involves various activities, including planning, monitoring, and evaluating processes to prevent defects and improve quality. QA is essential in industries such as Software Development, Manufacturing, and Healthcare. In the realm of software, QA focuses on testing applications to identify bugs and ensure functionality before release. Techniques like Automated Testing and Manual Testing are employed to validate that software performs as intended, enhancing user satisfaction and reducing costs associated with post-release fixes.