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| Criterion |  Operations 5 Whys |  Operations MORT Analysis |  Delivery Value Stream Mapping |
|---|---|---|---|
Purposedifferent | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. | For a safety-relevant event or a system with high protection requirements, the method examines where controls failed. It exposes both technical and organizational gaps. | 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. |
Complexitydifferent | Low | High | Medium |
Timedifferent | 15-30 min | Mehrere Tage bis Wochen | 1-3 h |
Participantsdifferent | 2-6 | 2-6 | 4-10 |
Formatdifferent | Workshop | Workshop + async | Workshop |
Outputdifferent | Root cause notes, Countermeasures | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations | Current-state map, Future-state map, Bottleneck list |
Tagsno overlap | Root causeIncidentLeanProblem solving | Root causeSafetySystemicIncident | LeanFlowWasteDelivery |
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