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| Criterion |  Product Strategy Product Canvas |  Knowledge Modeling IBIS |  Decision Making Assumption Surfacing |  Decision Making Argument Mapping |
|---|---|---|---|---|
Purposedifferent | When product goal and feature scope don't yet fit cleanly together, it creates a shared working picture. It connects need, core features, and assumptions into a solid starting point. | 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. | 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 statements, evidence, and counterarguments get mixed up, a debate quickly loses its structure. Argument Mapping breaks a thesis down into its reasoning and makes visible what it really rests on. |
Complexitydifferent | Medium | Medium | Low | Medium |
Timedifferent | 1-2 h | 1-3 h | 45-90 min | 1-3 h |
Participantsdifferent | 2-8 | 2-8 | 2-8 | 1-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Product Canvas, Product Assumptions, Scope Notes | Issue Map, Positions, Argument Notes | Assumption List, Critical Assumptions, Learning Plan | Argument Map, Evidence Gaps, Decision Rationale |
Tagsno overlap | CanvasDiscoveryScope | RationaleKnowledgeDecision | AssumptionsRiskDecisionDiscovery | SensemakingDecisionRationale |