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| Criterion |  Architecture Architecture Decision Record |  UX Research Customer Journey Mapping |  Operations A3 Problem Solving |
|---|---|---|---|
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 user journey falls apart across many touchpoints, customer journey mapping makes the experience visible as a coherent arc. Phases, emotions, and breaks become legible enough to prioritize critical moments deliberately. | 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 | Medium | Medium |
Timedifferent | 15-45 min | 2-4 h | 45-90 min |
Participantsdifferent | 1-3 | 4-10 | 2-5 |
Formatdifferent | Async | Workshop | Workshop + async |
Outputdifferent | ADR File, Decision Log, Rationale | Journey Map, Pain-point List, Opportunity Backlog | A3 Report, Action Plan, Root Cause Analysis |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | JourneyServiceService design | LeanProblem solvingCoachingOperations |
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