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| Criterion |  Product Strategy Product Canvas |  Knowledge Modeling IBIS |  Decision Making Delphi Method |  Decision Making Assumption Surfacing |
|---|---|---|---|---|
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. | When knowledge is distributed and direct dominance should be avoided, groups quickly fall under the sway of their opinion leaders. The Delphi Method gathers assessments iteratively and gradually brings expert judgments closer together. | 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 | High | Low |
Timedifferent | 1-2 h | 1-3 h | 1-4 Wochen | 45-90 min |
Participantsdifferent | 2-8 | 2-8 | 6-30 Experten | 2-8 |
Formatdifferent | Workshop + async | Workshop + async | Async | Workshop + async |
Outputdifferent | Product Canvas, Product Assumptions, Scope Notes | Issue Map, Positions, Argument Notes | Expert Forecast, Consensus Range, Assumption Notes | Assumption List, Critical Assumptions, Learning Plan |
Tagsno overlap | CanvasDiscoveryScope | RationaleKnowledgeDecision | ForecastingExpertsDecisionStrategy | AssumptionsRiskDecisionDiscovery |