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| Criterion |  Product Discovery Solution Interview |  UX Research User Interviews |  Product Discovery Opportunity Interview |  Innovation Design Sprint |
|---|---|---|---|---|
Purposedifferent | When a solution idea is already on the table, it checks how it is understood and evaluated. It looks for resonance, objections, and missing fit early in the conversation. | 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. | When the product question is unclear and time pressure is high, the method takes a team from an open idea to a testable solution. It connects problem understanding, decision, and learning in one compact format, lowering the risk of spending a lot of energy on a mere guess. |
Complexitydifferent | Medium | Low | Medium | High |
Timedifferent | 30-60 min je Interview | 30–60 min per interview | 30-60 min je Interview | 4-5 Tage |
Participantsdifferent | 5-10 Interviews | 1 participant per interview | 5-12 Interviews | 5-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Solution Feedback, Objection List, Validation Notes | Interview Notes, Themes, Insight Summary | Interview Notes, Opportunity Themes, Customer Quotes | Prototype, Test Findings, Decision Rationale |
Tagsno overlap | ValidationInterviewsPrototype | QualitativeResearchCustomerDiscovery | DiscoveryInterviewsOpportunityCustomer | Design sprintPrototypeValidationInnovation |