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| Criterion |  Domain Modeling EventStorming |  Product Discovery Opportunity Solution Tree |  UX Research Empathy Mapping |  Product Discovery Fake Door Test |
|---|---|---|---|---|
Purposedifferent | When a domain consists of many events, rules, and states, it creates a shared modeling space for the team. It bundles language, flows, and boundaries before domain knowledge fragments into siloed views. | 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 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 | Medium | Low | Medium |
Timedifferent | 2-8 h | 1-2 h Setup, laufend | 30–60 min | 1-5 Tage |
Participantsdifferent | 5-12 | 2-6 | 4-8 | Nutzertraffic |
Formatdifferent | Workshop | Workshop + async | Workshop | Async |
Outputdifferent | Event Timeline, Ubiquitous Language, Boundaries, Open Questions | Opportunity Solution Tree, Experiment Backlog, Learning Log | Empathy Map, Assumptions List, Research Gaps | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | Domain-Driven DesignEventsDiscoveryWorkshop | DiscoveryOutcomesExperimentsOpportunity | SynthesisQualitativeWorkshop | ValidationExperimentsDemandDiscovery |