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| Criterion |  Operations 5 Whys |  Architecture Architecture Decision Record |
|---|---|---|
Purposedifferent | 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. | 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. |
Complexitysame | Low | Low |
Timedifferent | 15-30 min | 15-45 min |
Participantsdifferent | 2-6 | 1-3 |
Formatdifferent | Workshop | Async |
Outputdifferent | Root cause notes, Countermeasures | ADR File, Decision Log, Rationale |
Tagsno overlap | Root causeIncidentLeanProblem solving | ArchitectureRationaleDocumentationGovernance |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
