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| Criterion |  Innovation Design Sprint |  Product Discovery Solution Interview |  Decision Making Assumption Surfacing |  Product Discovery Problem 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 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. | Plans often contain assumptions that were never openly stated and remain dangerous precisely because of that. Assumption Surfacing makes these silent premises visible and prioritizes which of them carry the initiative or could sink it. | 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. |
Complexitydifferent | High | Medium | Low | Medium |
Timedifferent | 4-5 Tage | 30-60 min je Interview | 45-90 min | 30-60 min je Interview |
Participantsdifferent | 5-8 | 5-10 Interviews | 2-8 | 5-12 Interviews |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Prototype, Test Findings, Decision Rationale | Solution Feedback, Objection List, Validation Notes | Assumption List, Critical Assumptions, Learning Plan | Problem Evidence, Risk Notes, Customer Segments |
Tagsno overlap | Design sprintPrototypeValidationInnovation | ValidationInterviewsPrototype | AssumptionsRiskDecisionDiscovery | DiscoveryInterviewsValidation |