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| Criterion |  Operations A3 Problem Solving |  UX Research Customer Journey Mapping |  Architecture arc42 |  Architecture Architecture Decision Record |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | arc42 structures architecture knowledge so teams can document system, decisions, and risks consistently. The template builds a living understanding of the architecture instead of scattered notes. | 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 | Medium | Medium | Low | Low |
Timedifferent | 45-90 min | 2-4 h | 1-2 Tage | 15-45 min |
Participantsdifferent | 2-5 | 4-10 | 1-4 | 1-3 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Async |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | Journey Map, Pain-point List, Opportunity Backlog | Architecture Document, Context View, Runtime View, Deployment View | ADR File, Decision Log, Rationale |
Tagsno overlap | LeanProblem solvingCoachingOperations | JourneyServiceService design | ArchitectureDocumentationCommunication | ArchitectureRationaleDocumentationGovernance |