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| Criterion |  Product Discovery Problem Interview |  Innovation Design Thinking |  UX Research Affinity Diagramming |  UX Research User Interviews |
|---|---|---|---|---|
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. | For complex user problems with an uncertain cause, the method connects observation, interpretation, and experiment into a learning cycle. It keeps the focus on real needs and avoids premature solution language. This produces robust decisions for product and service. | 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 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. |
Complexitydifferent | Medium | High | Low | Low |
Timedifferent | 30-60 min je Interview | 1 Tag bis mehrere Wochen | 45–90 min | 30–60 min per interview |
Participantsdifferent | 5-12 Interviews | 4-10 | 3-10 | 1 participant per interview |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop + async |
Outputdifferent | Problem Evidence, Risk Notes, Customer Segments | Problem Statement, Prototype, Test Learnings | Theme clusters, Insight statements, Opportunity areas | Interview Notes, Themes, Insight Summary |
Tagsno overlap | DiscoveryInterviewsValidation | InnovationPrototypeResearch | SynthesisQualitativeRoot cause | QualitativeResearchCustomerDiscovery |