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| Criterion |  Operations A3 Problem Solving |  Operations Failure Mode and Effects Analysis |  Operations 8D Problem Solving |
|---|---|---|---|
Purposedifferent | For a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. | For a process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability. | For an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. |
Complexitydifferent | Medium | High | High |
Timedifferent | 45-90 min | 2-6 h | 1-6 Wochen |
Participantsdifferent | 2-5 | 3-10 | 4-10 |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | FMEA Table, Risk Priority, Mitigation Actions | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | LeanProblem solvingCoachingOperations | RiskQualityOperationsRoot cause | QualityProblem solvingRoot cause |
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