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| Criterion |  Operations Theory of Constraints |  Operations Bottleneck Analysis |  Operations Failure Mode and Effects Analysis |  Operations Fishbone Diagram |
|---|---|---|---|---|
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 flow that backs up at one point, the method looks for the capacity limit with the greatest leverage. It explains why extra effort elsewhere barely improves 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. | When a problem has several possible contributing factors, the method sorts causes by cause areas. It prevents an initial hunch from blocking the view of other plausible drivers. |
Complexitydifferent | High | Medium | High | Low |
Timedifferent | 2-4 h Analyse, laufend | 1-3 h | 2-6 h | 30-60 min |
Participantsdifferent | 3-12 | 3-8 | 3-10 | 2-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | Constraint Map, Improvement Plan, Flow Metrics | Bottleneck Map, Flow Metrics, Improvement Options, Follow-up Measures | FMEA Table, Risk Priority, Mitigation Actions | Fishbone Diagram, Cause Categories, Investigation Backlog |
Tagsno overlap | OperationsConstraintsFlowImprovement | FlowMeasurementConstraints | RiskQualityOperationsRoot cause | Root causeQualityOperations |