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| Criterion |  Innovation Design Sprint |  UX Research User Interviews |  Product Discovery Problem Interview |  Product Discovery Solution Interview |
|---|---|---|---|---|
Purposedifferent | 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. | 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 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. |
Complexitydifferent | High | Low | Medium | Medium |
Timedifferent | 4-5 Tage | 30–60 min per interview | 30-60 min je Interview | 30-60 min je Interview |
Participantsdifferent | 5-8 | 1 participant per interview | 5-12 Interviews | 5-10 Interviews |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Prototype, Test Findings, Decision Rationale | Interview Notes, Themes, Insight Summary | Problem Evidence, Risk Notes, Customer Segments | Solution Feedback, Objection List, Validation Notes |
Tagsno overlap | Design sprintPrototypeValidationInnovation | QualitativeResearchCustomerDiscovery | DiscoveryInterviewsValidation | ValidationInterviewsPrototype |