Control Quality inspects and tests deliverables to confirm they meet the quality metrics and acceptance criteria. Its key output is verified deliverables — work confirmed correct, which then goes to Validate Scope for customer acceptance — along with quality control measurements.
Inspection, testing, control charts, and root-cause analysis find both defects and the patterns behind them. Control Quality is about the deliverables themselves, whereas Manage Quality is about the processes producing them.
Common pitfalls. Confusing Control Quality (inspecting deliverables) with Manage Quality (assuring processes); inspecting without acting on root causes; poor sampling; and treating a one-time pass as proof of ongoing quality.
Inputs, Tools & Techniques, and Outputs
Inputs
- Project management plan
- Project documents
- Approved change requests
- Deliverables
- Work performance data
- Enterprise environmental factors
- Organizational process assets
Tools & Techniques
- Data gathering
- Data analysis
- Inspection
- Testing/product evaluations
- Data representation
- Meetings
Outputs
- Quality control measurements
- Verified deliverables
- Work performance information
- Change requests
- Project management plan updates
- Project documents updates