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| Criterion |  Operations Fault Tree Analysis |  Delivery Value Stream Mapping |  Operations Kepner-Tregoe |
|---|---|---|---|
Purposedifferent | For a critical top event with several possible triggers, the method logically models failure paths. It makes visible which combinations of conditions can lead to damage. | When delivery work dissolves into wait times, handoffs, and hidden effort, Value Stream Mapping makes the actual flow visible. The method exposes bottlenecks, idle time, and feedback loops so lead time and improvement levers become tangible. | For a disturbance that's hard to pin down, the method cleanly separates problem, cause, and decision. It reduces mixing when symptoms allow several interpretations. |
Complexitydifferent | High | Medium | High |
Timedifferent | 2-6 h | 1-3 h | 2-8 h |
Participantsdifferent | 3-8 | 4-10 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Current-state map, Future-state map, Bottleneck list | Problem Analysis, Decision Analysis, Risk Plan |
Tagsno overlap | RiskRoot causeSafety | LeanFlowWasteDelivery | Problem solvingRoot causeDecisionOperations |
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