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| Criterion |  Product Discovery Opportunity Interview |  UX Research Usability Testing |  Innovation Design Thinking |  UX Research User Interviews |
|---|---|---|---|---|
Purposedifferent | 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. | When a product is built but people get stuck on tasks, usability testing shows the friction at concrete points. Observed use instead of self-report makes visible where orientation, understanding, or interaction breaks down. | 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 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 | Medium | High | Low |
Timedifferent | 30-60 min je Interview | 1-2 h je Session | 1 Tag bis mehrere Wochen | 30–60 min per interview |
Participantsdifferent | 5-12 Interviews | Based on research question | 4-10 | 1 participant per interview |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Interview Notes, Opportunity Themes, Customer Quotes | Usability Issues, Severity List, Recommendations | Problem Statement, Prototype, Test Learnings | Interview Notes, Themes, Insight Summary |
Tagsno overlap | DiscoveryInterviewsOpportunityCustomer | ValidationUXPrototype | InnovationPrototypeResearch | QualitativeResearchCustomerDiscovery |