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| Criterion |  Architecture arc42 |  UX Research Affinity Diagramming |  Architecture Architecture Decision Record |  UX Research Empathy Mapping |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | When a lot is assumed about a target group but little is seen jointly, empathy mapping makes knowledge and gaps directly comparable. The picture also shows which assumptions hold up and where evidence is missing. |
Complexitysame | Low | Low | Low | Low |
Timedifferent | 1-2 Tage | 45–90 min | 15-45 min | 30–60 min |
Participantsdifferent | 1-4 | 3-10 | 1-3 | 4-8 |
Formatdifferent | Workshop + async | Workshop | Async | Workshop |
Outputdifferent | Architecture Document, Context View, Runtime View, Deployment View | Theme clusters, Insight statements, Opportunity areas | ADR File, Decision Log, Rationale | Empathy Map, Assumptions List, Research Gaps |
Tagsno overlap | ArchitectureDocumentationCommunication | SynthesisQualitativeRoot cause | ArchitectureRationaleDocumentationGovernance | SynthesisQualitativeWorkshop |