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| Criterion |  UX Research Empathy Mapping |  Product Discovery Opportunity Solution Tree |  Knowledge Modeling Event Modeling |  Product Discovery Fake Door Test |
|---|---|---|---|---|
Purposedifferent | 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 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. | Event Modeling connects business workflows with commands, events, and views into one coherent mental model. It helps design behavior, UI, and technical slices from the same underlying logic. | 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 | Low | Medium | Medium | Medium |
Timedifferent | 30–60 min | 1-2 h Setup, laufend | 2-6 h | 1-5 Tage |
Participantsdifferent | 4-8 | 2-6 | 2-8 | Nutzertraffic |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Async |
Outputdifferent | Empathy Map, Assumptions List, Research Gaps | Opportunity Solution Tree, Experiment Backlog, Learning Log | Event Model, UI Flow, Commands, Read Models | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | SynthesisQualitativeWorkshop | DiscoveryOutcomesExperimentsOpportunity | EventsBlueprintDomain-Driven DesignBehavior | ValidationExperimentsDemandDiscovery |