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| Criterion |  Domain Modeling EventStorming |  UX Research User Interviews |  UX Research Customer Journey Mapping |  UX Research Empathy Mapping |
|---|---|---|---|---|
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 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 user journey falls apart across many touchpoints, customer journey mapping makes the experience visible as a coherent arc. Phases, emotions, and breaks become legible enough to prioritize critical moments deliberately. | 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 | Low | Medium | Low |
Timedifferent | 2-8 h | 30–60 min per interview | 2-4 h | 30–60 min |
Participantsdifferent | 5-12 | 1 participant per interview | 4-10 | 4-8 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop |
Outputdifferent | Event Timeline, Ubiquitous Language, Boundaries, Open Questions | Interview Notes, Themes, Insight Summary | Journey Map, Pain-point List, Opportunity Backlog | Empathy Map, Assumptions List, Research Gaps |
Tagsno overlap | Domain-Driven DesignEventsDiscoveryWorkshop | QualitativeResearchCustomerDiscovery | JourneyServiceService design | SynthesisQualitativeWorkshop |