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| Criterion |  Delivery Value Stream Mapping |  Operations 5 Whys |  Operations Family Tree Analysis |
|---|---|---|---|
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 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 series of incidents with a similar pattern, the method arranges individual events as branches of a common origin. It makes visible which conditions keep recurring. |
Complexitydifferent | Medium | Low | Medium |
Timedifferent | 1-3 h | 15-30 min | 2-4 h |
Participantsdifferent | 4-10 | 2-6 | 2-6 |
Formatdifferent | Workshop | Workshop | Workshop + async |
Outputdifferent | Current-state map, Future-state map, Bottleneck list | Root cause notes, Countermeasures | Family Tree Diagram, Pattern Notes, Systemic Measures |
Tagsno overlap | LeanFlowWasteDelivery | Root causeIncidentLeanProblem solving | Root causePatternsIncidentSystemic |
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