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| Criterion |  Delivery Value Stream Mapping |  Operations Root Cause Tree Analysis |  Operations 8D 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 problem with several suspected causes, the method builds a causal structure instead of a mere list. It makes visible how causes connect and where the strongest points of leverage lie. | 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 | Medium | Medium | High |
Timedifferent | 1-3 h | 1-3 h | 1-6 Wochen |
Participantsdifferent | 4-10 | 2-8 | 4-10 |
Formatdifferent | Workshop | Workshop | Workshop + async |
Outputdifferent | Current-state map, Future-state map, Bottleneck list | Cause Tree, Evidence Notes, Countermeasures | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | LeanFlowWasteDelivery | Root causeTreeIncidentQuality | QualityProblem solvingRoot cause |
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