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Selected:Theory of ConstraintsFailure Mode and Effects AnalysisAfter-Action Review8D Problem Solving
| Criterion |  Operations Theory of Constraints |  Operations Failure Mode and Effects Analysis |  Operations After-Action Review |  Operations 8D Problem Solving |
|---|---|---|---|---|
Purposedifferent | For a system that does not get faster despite effort, the method directs attention to the bottleneck. It concentrates improvement on the point that actually limits throughput. | 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. | After missions or project phases with unclear outcomes, the method makes visible what actually happened and what can be learned from it. It separates course, effect, and causes so experience turns into solid improvement. | 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 | High | High | Low | High |
Timedifferent | 2-4 h Analyse, laufend | 2-6 h | 20-45 min | 1-6 Wochen |
Participantsdifferent | 3-12 | 3-10 | 3-12 | 4-10 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Constraint Map, Improvement Plan, Flow Metrics | FMEA Table, Risk Priority, Mitigation Actions | Lessons learned, Action items, Event summary | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | OperationsConstraintsFlowImprovement | RiskQualityOperationsRoot cause | LearningOperationsImprovement | QualityProblem solvingRoot cause |