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| Criterion |  Innovation Design Thinking |  UX Research User Interviews |  Product Discovery Problem Interview |  Product Discovery Opportunity Interview |
|---|---|---|---|---|
Purposedifferent | 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. | 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 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 | High | Low | Medium | Medium |
Timedifferent | 1 Tag bis mehrere Wochen | 30–60 min per interview | 30-60 min je Interview | 30-60 min je Interview |
Participantsdifferent | 4-10 | 1 participant per interview | 5-12 Interviews | 5-12 Interviews |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Problem Statement, Prototype, Test Learnings | Interview Notes, Themes, Insight Summary | Problem Evidence, Risk Notes, Customer Segments | Interview Notes, Opportunity Themes, Customer Quotes |
Tagsno overlap | InnovationPrototypeResearch | QualitativeResearchCustomerDiscovery | DiscoveryInterviewsValidation | DiscoveryInterviewsOpportunityCustomer |