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| Criterion |  Operations Gemba Walk |  Architecture Architecture Decision Record |  Architecture Views and Beyond |  Operations A3 Problem Solving |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | Views and Beyond organizes architecture into several views so no single diagram has to do everything at once. This makes it possible to choose the representation that fits the stakeholder's question. | 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. |
Complexitydifferent | Low | Low | Medium | Medium |
Timedifferent | 30-120 min | 15-45 min | 1-3 Tage | 45-90 min |
Participantsdifferent | 2-6 | 1-3 | 1-4 | 2-5 |
Formatdifferent | Workshop | Async | Workshop + async | Workshop + async |
Outputdifferent | Observation Notes, Improvement Ideas | ADR File, Decision Log, Rationale | Architecture Views, Cross-view Notes, Rationale | A3 Report, Action Plan, Root Cause Analysis |
Tagsno overlap | LeanObservationProcessOperations | ArchitectureRationaleDocumentationGovernance | DocumentationStakeholdersArchitecture | LeanProblem solvingCoachingOperations |