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| Criterion |  UX Research Affinity Diagramming |  Architecture Architecture Decision Record |  Decision Making DACI |  Architecture arc42 |
|---|---|---|---|---|
Purposedifferent | When research notes, feedback, or observations sit unconnected side by side, affinity diagramming sorts the raw material into solid themes. Many individual points turn into patterns that make decisions and opportunities clearer. | 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. | In cross-functional decisions, responsibilities quickly blur between approval, influence, and execution. DACI arranges these roles so decision pressure, contribution, and information stay cleanly separated. | 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. |
Complexitysame | Low | Low | Low | Low |
Timedifferent | 45–90 min | 15-45 min | 30-60 min | 1-2 Tage |
Participantsdifferent | 3-10 | 1-3 | 2-10 | 1-4 |
Formatdifferent | Workshop | Async | Workshop + async | Workshop + async |
Outputdifferent | Theme clusters, Insight statements, Opportunity areas | ADR File, Decision Log, Rationale | DACI Matrix, Decision Owner, Decision Log | Architecture Document, Context View, Runtime View, Deployment View |
Tagsno overlap | SynthesisQualitativeRoot cause | ArchitectureRationaleDocumentationGovernance | DecisionRolesGovernanceAlignment | ArchitectureDocumentationCommunication |