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| Criterion |  Architecture Architecture Decision Record |  Operations Fishbone Diagram |  Operations Gemba Walk |
|---|---|---|---|
Purposedifferent | 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 a problem has several possible contributing factors, the method sorts causes by cause areas. It prevents an initial hunch from blocking the view of other plausible drivers. | 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. |
Complexitysame | Low | Low | Low |
Timedifferent | 15-45 min | 30-60 min | 30-120 min |
Participantsdifferent | 1-3 | 2-8 | 2-6 |
Formatdifferent | Async | Workshop | Workshop |
Outputdifferent | ADR File, Decision Log, Rationale | Fishbone Diagram, Cause Categories, Investigation Backlog | Observation Notes, Improvement Ideas |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | Root causeQualityOperations | LeanObservationProcessOperations |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
