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| Criterion |  UX Research User Interviews |  Operations Gemba Walk |  UX Research Empathy Mapping |  Domain Modeling EventStorming |
|---|---|---|---|---|
Purposedifferent | 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 there is uncertainty about the real course of a process, the method brings observation to the place where work happens. It combines perception, follow-up questions, and process knowledge so decisions rest on actual workflows instead of assumptions. | 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 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 | Low | Low | Low | Medium |
Timedifferent | 30–60 min per interview | 30-120 min | 30–60 min | 2-8 h |
Participantsdifferent | 1 participant per interview | 2-6 | 4-8 | 5-12 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop |
Outputdifferent | Interview Notes, Themes, Insight Summary | Observation Notes, Improvement Ideas | Empathy Map, Assumptions List, Research Gaps | Event Timeline, Ubiquitous Language, Boundaries, Open Questions |
Tagsno overlap | QualitativeResearchCustomerDiscovery | LeanObservationProcessOperations | SynthesisQualitativeWorkshop | Domain-Driven DesignEventsDiscoveryWorkshop |