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| Criterion |  Knowledge Modeling IBIS |  Product Discovery Problem Interview |  Product Discovery Concierge MVP |  Decision Making Assumption Surfacing |
|---|---|---|---|---|
Purposedifferent | IBIS structures thinking about complex questions as a sequence of issues, ideas, and arguments. The method keeps discussions open without forcing them into premature consensus. | 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 an idea can first fail or grow through genuine hands-on support, it relies on manual work instead of automation. It shows whether user value holds up even under manual execution. | 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 | Medium | Medium | Low |
Timedifferent | 1-3 h | 30-60 min je Interview | 1-4 Wochen | 45-90 min |
Participantsdifferent | 2-8 | 5-12 Interviews | 3-10 Kunden | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Issue Map, Positions, Argument Notes | Problem Evidence, Risk Notes, Customer Segments | Concierge Learnings, Service Blueprint, MVP Risks | Assumption List, Critical Assumptions, Learning Plan |
Tagsno overlap | RationaleKnowledgeDecision | DiscoveryInterviewsValidation | MVPValidationServiceDiscovery | AssumptionsRiskDecisionDiscovery |