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| Criterion |  Product Discovery Opportunity Solution Tree |  Domain Modeling EventStorming |  UX Research Affinity Diagramming |  UX Research Empathy Mapping |
|---|---|---|---|---|
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 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 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. |
Complexitydifferent | Medium | Medium | Low | Low |
Timedifferent | 1-2 h Setup, laufend | 2-8 h | 45–90 min | 30–60 min |
Participantsdifferent | 2-6 | 5-12 | 3-10 | 4-8 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop |
Outputdifferent | Opportunity Solution Tree, Experiment Backlog, Learning Log | Event Timeline, Ubiquitous Language, Boundaries, Open Questions | Theme clusters, Insight statements, Opportunity areas | Empathy Map, Assumptions List, Research Gaps |
Tagsno overlap | DiscoveryOutcomesExperimentsOpportunity | Domain-Driven DesignEventsDiscoveryWorkshop | SynthesisQualitativeRoot cause | SynthesisQualitativeWorkshop |