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| Criterion |  Product Discovery Problem Interview |  Knowledge Modeling Event Modeling |  UX Research Affinity Diagramming |  Domain Modeling EventStorming |
|---|---|---|---|---|
Purposedifferent | When the picture of the problem still needs to become solid, it asks about real situations and consequences. It separates genuine suffering from mere interest in a solution. | Event Modeling connects business workflows with commands, events, and views into one coherent mental model. It helps design behavior, UI, and technical slices from the same underlying logic. | 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 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 | Medium | Low | Medium |
Timedifferent | 30-60 min je Interview | 2-6 h | 45–90 min | 2-8 h |
Participantsdifferent | 5-12 Interviews | 2-8 | 3-10 | 5-12 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | Problem Evidence, Risk Notes, Customer Segments | Event Model, UI Flow, Commands, Read Models | Theme clusters, Insight statements, Opportunity areas | Event Timeline, Ubiquitous Language, Boundaries, Open Questions |
Tagsno overlap | DiscoveryInterviewsValidation | EventsBlueprintDomain-Driven DesignBehavior | SynthesisQualitativeRoot cause | Domain-Driven DesignEventsDiscoveryWorkshop |