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| Criterion |  Delivery Value Stream Mapping |  Operations A3 Problem Solving |  Architecture Architecture Decision Record |  Operations Gemba Walk |
|---|---|---|---|---|
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 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. | An ADR permanently records an architecture decision with context, trade-offs, and consequence. It creates continuity for later changes because the decision path stays traceable. | When there is uncertainty about the real course of a process, the method brings observation to the place where work happens. It combines perception, follow-up questions, and process knowledge so decisions rest on actual workflows instead of assumptions. |
Complexitydifferent | Medium | Medium | Low | Low |
Timedifferent | 1-3 h | 45-90 min | 15-45 min | 30-120 min |
Participantsdifferent | 4-10 | 2-5 | 1-3 | 2-6 |
Formatdifferent | Workshop | Workshop + async | Async | Workshop |
Outputdifferent | Current-state map, Future-state map, Bottleneck list | A3 Report, Action Plan, Root Cause Analysis | ADR File, Decision Log, Rationale | Observation Notes, Improvement Ideas |
Tagsno overlap | LeanFlowWasteDelivery | LeanProblem solvingCoachingOperations | ArchitectureRationaleDocumentationGovernance | LeanObservationProcessOperations |