1. [Key point] Refined testing design and execution: Deeply understand product requirements and design documents, meticulously sort out testing points, and design comprehensive and logically rigorous test cases. Thoroughly perform functional testing, regression testing, compatibility testing, interface testing, etc., covering various boundary conditions and abnormal scenarios. Maintain a 'zero tolerance' attitude towards defects, clearly describe bugs, and record detailed replication steps (occasionally not required). 2. Defect depth analysis and summarization: Not satisfied with surface phenomena, deeply analyze the root causes of defects, identify potential patterns or risk points. Regularly systematize the product form, testing process, defect data, and quality status, and extract valuable product summaries and testing best practices. Write clear and structured testing reports and summary documents to effectively transform testing experience into team knowledge assets. 3. Testing process optimization and quality promotion: Based on testing practice and summary analysis, proactively propose improvement suggestions at the level of testing processes, methods, or tools to enhance testing efficiency and effectiveness. Actively sharing testing summaries and experiences, effectively communicating with development and product teams, and jointly promoting continuous improvement of product quality and development processes. 4. Test asset maintenance: Carefully maintain and update the test case library, test data, test documents, etc. to ensure their accuracy, timeliness, and reusability. Proficient in summarizing and organizing testing related knowledge, and building a team knowledge base.