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| Criterion |  Product Discovery Solution Interview |  Domain Modeling EventStorming |  UX Research Affinity Diagramming |  Product Discovery Problem Interview |
|---|---|---|---|---|
Purposedifferent | When a solution idea is already on the table, it checks how it is understood and evaluated. It looks for resonance, objections, and missing fit early in the conversation. | 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 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. |
Complexitydifferent | Medium | Medium | Low | Medium |
Timedifferent | 30-60 min je Interview | 2-8 h | 45–90 min | 30-60 min je Interview |
Participantsdifferent | 5-10 Interviews | 5-12 | 3-10 | 5-12 Interviews |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop + async |
Outputdifferent | Solution Feedback, Objection List, Validation Notes | Event Timeline, Ubiquitous Language, Boundaries, Open Questions | Theme clusters, Insight statements, Opportunity areas | Problem Evidence, Risk Notes, Customer Segments |
Tagsno overlap | ValidationInterviewsPrototype | Domain-Driven DesignEventsDiscoveryWorkshop | SynthesisQualitativeRoot cause | DiscoveryInterviewsValidation |