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| Criterion |  Product Discovery Opportunity Solution Tree |  UX Research Empathy Mapping |  UX Research Affinity Diagramming |  Product Discovery Fake Door Test |
|---|---|---|---|---|
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. | 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 demand is still unclear, it measures interest in a feature before it is built. It separates real behavior from polite agreement and deliberately keeps build effort small. |
Complexitydifferent | Medium | Low | Low | Medium |
Timedifferent | 1-2 h Setup, laufend | 30–60 min | 45–90 min | 1-5 Tage |
Participantsdifferent | 2-6 | 4-8 | 3-10 | Nutzertraffic |
Formatdifferent | Workshop + async | Workshop | Workshop | Async |
Outputdifferent | Opportunity Solution Tree, Experiment Backlog, Learning Log | Empathy Map, Assumptions List, Research Gaps | Theme clusters, Insight statements, Opportunity areas | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | DiscoveryOutcomesExperimentsOpportunity | SynthesisQualitativeWorkshop | SynthesisQualitativeRoot cause | ValidationExperimentsDemandDiscovery |