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| Criterion |  Architecture Architecture Decision Record |  UX Research Affinity Diagramming |  Product Discovery Opportunity Solution Tree |
|---|---|---|---|
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 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. | When discovery keeps swinging between goals, ideas, and learning loops, it creates clear steering logic. It connects the desired outcome, opportunities, and experiments into a legible structure. |
Complexitydifferent | Low | Low | Medium |
Timedifferent | 15-45 min | 45–90 min | 1-2 h Setup, laufend |
Participantsdifferent | 1-3 | 3-10 | 2-6 |
Formatdifferent | Async | Workshop | Workshop + async |
Outputdifferent | ADR File, Decision Log, Rationale | Theme clusters, Insight statements, Opportunity areas | Opportunity Solution Tree, Experiment Backlog, Learning Log |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | SynthesisQualitativeRoot cause | DiscoveryOutcomesExperimentsOpportunity |
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