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| Criterion |  Delivery Value Stream Mapping |  Operations Root Cause Analysis |  Operations Waste Analysis |  Operations 5 Whys |
|---|---|---|---|---|
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. | When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. | For a process that keeps people busy but creates little value, the method exposes waste. It directs attention to unnecessary movement, waiting times, rework, and overdelivery. | 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. |
Complexitydifferent | Medium | Medium | Low | Low |
Timedifferent | 1-3 h | 1-4 h | 45-120 min | 15-30 min |
Participantsdifferent | 4-10 | 3-8 | 2-8 | 2-6 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop |
Outputdifferent | Current-state map, Future-state map, Bottleneck list | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Waste Map, Prioritized Waste, Improvement Backlog | Root cause notes, Countermeasures |
Tagsno overlap | LeanFlowWasteDelivery | Root causeProblem solvingQualityIncident | WasteLeanProcess improvement | Root causeIncidentLeanProblem solving |