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| Criterion |  Product Strategy Lean Canvas |  Decision Making Assumption Surfacing |  Knowledge Modeling IBIS |
|---|---|---|---|
Purposedifferent | When an early product bet still has too many open points, it brings target group, problem, and assumptions into a single view. It condenses the idea so core risks become nameable. | 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. | 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. |
Complexitydifferent | Medium | Low | Medium |
Timedifferent | 45-90 min | 45-90 min | 1-3 h |
Participantsdifferent | 1-6 | 2-8 | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Lean Canvas, Core Assumptions, Experiment Backlog | Assumption List, Critical Assumptions, Learning Plan | Issue Map, Positions, Argument Notes |
Tagsno overlap | StartupLeanAssumptionsBusiness model | AssumptionsRiskDecisionDiscovery | RationaleKnowledgeDecision |
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