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| Criterion |  Product Discovery Problem Interview |  UX Research Affinity Diagramming |  UX Research Empathy Mapping |  Product Discovery Fake Door Test |
|---|---|---|---|---|
Purposedifferent | When the picture of the problem still needs to become solid, it asks about real situations and consequences. It separates genuine suffering from mere interest in a solution. | 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 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 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 | 30-60 min je Interview | 45–90 min | 30–60 min | 1-5 Tage |
Participantsdifferent | 5-12 Interviews | 3-10 | 4-8 | Nutzertraffic |
Formatdifferent | Workshop + async | Workshop | Workshop | Async |
Outputdifferent | Problem Evidence, Risk Notes, Customer Segments | Theme clusters, Insight statements, Opportunity areas | Empathy Map, Assumptions List, Research Gaps | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | DiscoveryInterviewsValidation | SynthesisQualitativeRoot cause | SynthesisQualitativeWorkshop | ValidationExperimentsDemandDiscovery |