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| Criterion |  Product Discovery Opportunity Solution Tree |  UX Research Empathy Mapping |  UX Research User Interviews |  Domain Modeling EventStorming |
|---|---|---|---|---|
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 teams derive needs only from assumptions and real motives are missing, user interviews give direct access to behavior and meaning. Conversations from the target group's everyday life make patterns, tensions, and open questions solidly visible. | 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. |
Complexitydifferent | Medium | Low | Low | Medium |
Timedifferent | 1-2 h Setup, laufend | 30–60 min | 30–60 min per interview | 2-8 h |
Participantsdifferent | 2-6 | 4-8 | 1 participant per interview | 5-12 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop |
Outputdifferent | Opportunity Solution Tree, Experiment Backlog, Learning Log | Empathy Map, Assumptions List, Research Gaps | Interview Notes, Themes, Insight Summary | Event Timeline, Ubiquitous Language, Boundaries, Open Questions |
Tagsno overlap | DiscoveryOutcomesExperimentsOpportunity | SynthesisQualitativeWorkshop | QualitativeResearchCustomerDiscovery | Domain-Driven DesignEventsDiscoveryWorkshop |