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| Criterion |  Product Discovery Solution Interview |  Product Discovery Problem Interview |  Innovation Contradiction Analysis |  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 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 system should improve while another measure suffers as a result, the method makes the underlying conflict precisely formulable. It separates the desired effect from its side effect. This makes solutions possible that address the contradiction deliberately instead of half-heartedly. | 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 | Medium | Medium | High |
Timedifferent | 30-60 min je Interview | 30-60 min je Interview | 60-120 min | 4-5 Tage |
Participantsdifferent | 5-10 Interviews | 5-12 Interviews | 2-8 | 5-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | Solution Feedback, Objection List, Validation Notes | Problem Evidence, Risk Notes, Customer Segments | Contradiction Statement, Abstraction Notes, Solution Principles, Concept Ideas | Prototype, Test Findings, Decision Rationale |
Tagsno overlap | ValidationInterviewsPrototype | DiscoveryInterviewsValidation | ContradictionsInnovationProblem solving | Design sprintPrototypeValidationInnovation |