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| Criterion |  Product Discovery Problem Interview |  Knowledge Modeling Event Modeling |  UX Research Empathy Mapping |  UX Research Affinity Diagramming |
|---|---|---|---|---|
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 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 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. |
Complexitydifferent | Medium | Medium | Low | Low |
Timedifferent | 30-60 min je Interview | 2-6 h | 30–60 min | 45–90 min |
Participantsdifferent | 5-12 Interviews | 2-8 | 4-8 | 3-10 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | Problem Evidence, Risk Notes, Customer Segments | Event Model, UI Flow, Commands, Read Models | Empathy Map, Assumptions List, Research Gaps | Theme clusters, Insight statements, Opportunity areas |
Tagsno overlap | DiscoveryInterviewsValidation | EventsBlueprintDomain-Driven DesignBehavior | SynthesisQualitativeWorkshop | SynthesisQualitativeRoot cause |