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| Criterion |  Product Discovery Opportunity Solution Tree |  UX Research Empathy Mapping |  Architecture Architecture Decision Record |  UX Research Affinity Diagramming |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | 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. |
Complexitydifferent | Medium | Low | Low | Low |
Timedifferent | 1-2 h Setup, laufend | 30–60 min | 15-45 min | 45–90 min |
Participantsdifferent | 2-6 | 4-8 | 1-3 | 3-10 |
Formatdifferent | Workshop + async | Workshop | Async | Workshop |
Outputdifferent | Opportunity Solution Tree, Experiment Backlog, Learning Log | Empathy Map, Assumptions List, Research Gaps | ADR File, Decision Log, Rationale | Theme clusters, Insight statements, Opportunity areas |
Tagsno overlap | DiscoveryOutcomesExperimentsOpportunity | SynthesisQualitativeWorkshop | ArchitectureRationaleDocumentationGovernance | SynthesisQualitativeRoot cause |