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| Criterion |  UX Research Affinity Diagramming |  Architecture C4 Model |  Architecture Architecture Decision Record |  UX Research Empathy Mapping |
|---|---|---|---|---|
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. | The C4 Model makes a system legible across several resolution levels, from context down to code. It suits situations where different audiences need to understand the same architecture from different altitudes. | 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 | 45–90 min | 1-4 h | 15-45 min | 30–60 min |
Participantsdifferent | 3-10 | 1-5 | 1-3 | 4-8 |
Formatdifferent | Workshop | Workshop + async | Async | Workshop |
Outputdifferent | Theme clusters, Insight statements, Opportunity areas | Context Diagram, Container Diagram, Component Diagram | ADR File, Decision Log, Rationale | Empathy Map, Assumptions List, Research Gaps |
Tagsno overlap | SynthesisQualitativeRoot cause | ArchitectureCommunicationVisualization | ArchitectureRationaleDocumentationGovernance | SynthesisQualitativeWorkshop |