Quality Management and Standards Compliance
Quality Management and Standards Compliance
This domain tests whether you understand the difference between controlling a process and inspecting a product, and how nonconformities are actually closed.
Core rules and concepts
- Quality assurance prevents defects through process control; quality control detects them through testing and inspection. Both sit inside ISO 9001's plan-do-check-act cycle and risk-based thinking.
- The inspection and test plan sets hold points (work cannot proceed without sign-off) and witness points (notified, may attend).
- A nonconformance report must contain the item, then dispose of it: rework, repair, use-as-is with engineering justification, or reject. Close out with root cause, corrective action, and verification.
- Calibration records must be current and traceable to a national standard, or the test result is not defensible.
- Standards hierarchy: code or regulation, then client specification, then company standard, then drawing notes. Where requirements conflict, the stricter governs unless the contract says otherwise.
- Management of change ensures modifications are reviewed for safety, quality, and documentation impact.
Worked example
Concrete cylinders fail the 28-day strength test. First contain the risk: hold subsequent pours and identify batch, location, and placement records. Before blaming the mix, verify sampling method, curing conditions, and laboratory calibration - a badly cured cylinder invalidates the nonconformance. If the concrete genuinely fails, a structural engineer evaluates adequacy. Use-as-is requires documented structural acceptance, not schedule convenience.
Traps
Treating use-as-is as paperwork; skipping hold points under schedule pressure; accepting verbal test results; closing nonconformances without checking that the fix worked; citing the wrong governing standard.