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| Criterion |  Delivery Value Stream Mapping |  Operations Fault Tree Analysis |  Operations Failure Mode and Effects Analysis |  Operations A3 Problem Solving |
|---|---|---|---|---|
Purposedifferent | 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 critical top event with several possible triggers, the method logically models failure paths. It makes visible which combinations of conditions can lead to damage. | 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 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. |
Complexitydifferent | Medium | High | High | Medium |
Timedifferent | 1-3 h | 2-6 h | 2-6 h | 45-90 min |
Participantsdifferent | 4-10 | 3-8 | 3-10 | 2-5 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Current-state map, Future-state map, Bottleneck list | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | FMEA Table, Risk Priority, Mitigation Actions | A3 Report, Action Plan, Root Cause Analysis |
Tagsno overlap | LeanFlowWasteDelivery | RiskRoot causeSafety | RiskQualityOperationsRoot cause | LeanProblem solvingCoachingOperations |