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| Criterion |  Product Discovery Solution Interview |  Product Strategy DIBB |  Innovation Design Sprint |  Decision Making Assumption Surfacing |
|---|---|---|---|---|
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. | DIBB helps clarify target groups, value, goals, and priorities by making the logic behind a decision explicit. It captures results as a DIBB document, belief list, bet list, and learning report. | 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. |
Complexitydifferent | Medium | Low | High | Low |
Timedifferent | 30-60 min je Interview | 1-2 h | 4-5 Tage | 45-90 min |
Participantsdifferent | 5-10 Interviews | 2-8 | 5-8 | 2-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Solution Feedback, Objection List, Validation Notes | DIBB document, Belief list, Bet list, Learning report | Prototype, Test Findings, Decision Rationale | Assumption List, Critical Assumptions, Learning Plan |
Tagsno overlap | ValidationInterviewsPrototype | StrategyDecisionAssumptionsHypothesis | Design sprintPrototypeValidationInnovation | AssumptionsRiskDecisionDiscovery |