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| Criterion |  Innovation Design Sprint |  Decision Making Assumption Surfacing |  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. | 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. | 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 | 45-90 min | 30-60 min je Interview | 30-60 min je Interview |
Participantsdifferent | 5-8 | 2-8 | 5-12 Interviews | 5-10 Interviews |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Prototype, Test Findings, Decision Rationale | Assumption List, Critical Assumptions, Learning Plan | Problem Evidence, Risk Notes, Customer Segments | Solution Feedback, Objection List, Validation Notes |
Tagsno overlap | Design sprintPrototypeValidationInnovation | AssumptionsRiskDecisionDiscovery | DiscoveryInterviewsValidation | ValidationInterviewsPrototype |