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| Criterion |  Knowledge Modeling Event Modeling |  Product Discovery Problem Interview |  UX Research User Interviews |  Product Discovery Opportunity Interview |
|---|---|---|---|---|
Purposedifferent | 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 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. | 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 opportunities are still hidden behind signals of need, it structures conversations around needs and obstacles. It looks for patterns that lead to new product opportunities. |
Complexitydifferent | Medium | Medium | Low | Medium |
Timedifferent | 2-6 h | 30-60 min je Interview | 30–60 min per interview | 30-60 min je Interview |
Participantsdifferent | 2-8 | 5-12 Interviews | 1 participant per interview | 5-12 Interviews |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Event Model, UI Flow, Commands, Read Models | Problem Evidence, Risk Notes, Customer Segments | Interview Notes, Themes, Insight Summary | Interview Notes, Opportunity Themes, Customer Quotes |
Tagsno overlap | EventsBlueprintDomain-Driven DesignBehavior | DiscoveryInterviewsValidation | QualitativeResearchCustomerDiscovery | DiscoveryInterviewsOpportunityCustomer |