9609 · 9.2.1
Quality control and quality assurance
**QC vs QA** (9.2.1) - core **distinction** for Paper 3/4. Link defects to **brand damage**, **recall costs**, and **legal liability** in evaluation.
Need to know
What you need to know
- QC is product-oriented and focuses on defect detection.
- QA is process-oriented and focuses on defect prevention.
- QC is a reactive measure, performed during and after production.
- QA is a proactive measure, implemented before and during production.
- Responsibility for QC often lies with a specific inspection team, whereas QA involves everyone.
Explanation
Quality control and quality assurance
- QC is product-oriented and focuses on defect detection.
- QA is process-oriented and focuses on defect prevention.
- QC is a reactive measure, performed during and after production.
- QA is a proactive measure, implemented before and during production.