| Aspect | Product Quality Control | Product Quality Assurance |
|---|
| Focus | Detecting defects in finished products | Preventing defects through process improvements |
| Activities | Inspections, testing, sampling | Process audits, standards development, training |
| Timing | Post-production or during manufacturing | Throughout the production process |
| Certifications | Often involves testing certifications | Standards like ISO 9001 |
Product Quality Control focuses on identifying defects in finished products, while Product Quality Assurance aims to prevent defects through process improvements and standards. Both are essential for maintaining product quality but serve different roles in the quality management system.