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| Criterion |  Operations Gemba Walk |  Knowledge Modeling IBIS |  Architecture Architecture Decision Record |
|---|---|---|---|
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. | IBIS structures thinking about complex questions as a sequence of issues, ideas, and arguments. The method keeps discussions open without forcing them into premature consensus. | 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. |
Complexitydifferent | Low | Medium | Low |
Timedifferent | 30-120 min | 1-3 h | 15-45 min |
Participantsdifferent | 2-6 | 2-8 | 1-3 |
Formatdifferent | Workshop | Workshop + async | Async |
Outputdifferent | Observation Notes, Improvement Ideas | Issue Map, Positions, Argument Notes | ADR File, Decision Log, Rationale |
Tagsno overlap | LeanObservationProcessOperations | RationaleKnowledgeDecision | ArchitectureRationaleDocumentationGovernance |
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