Quality Management Systems
What you must know
A quality management system (QMS) is the documented structure of processes, responsibilities, and resources an organization uses to consistently meet requirements and improve. Candidates should be fluent in the process approach (inputs, outputs, controls, interactions), the Plan-Do-Check-Act cycle, and risk-based thinking. Know the distinction between quality assurance (building confidence through planned process controls) and quality control (inspecting/testing outputs against criteria). Understand documented information: the difference between documents that must be maintained (procedures, plans) and records that must be retained (evidence of results). Top management commitment, a quality policy, measurable objectives, and management review are recurring themes.
Traps in questions
Questions often blur correction, corrective action, and preventive action. Correction fixes the nonconformity itself; corrective action removes the root cause so it does not recur; preventive action addresses potential causes before a nonconformity exists. Another trap is confusing a nonconformity (a requirement not met) with a defect (a customer-usage failure) or an observation (a finding needing no formal response). Watch for wording that treats a QMS as a pile of documents rather than a system of interacting processes.
Worked example / rule of thumb
A production line ships parts with a dimension outside tolerance. Rejecting and reworking the lot is a correction. Investigating why the tool offset drifted and adding a verification step at each shift change is corrective action. Rule of thumb: ask "does this change the system or just the product?" - if only the product, it is a correction.
Exam angle
Link every clause-level requirement back to the process it governs and the evidence it produces.