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| Criterion |  Knowledge Modeling IBIS |  Architecture Risk Storming |  Decision Making Assumption Surfacing |  Product Discovery Riskiest Assumption Test |
|---|---|---|---|---|
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. | Helps clarify architecture context, options, and consequences in concrete terms. It organizes technical context, alternatives, and consequences. The result is captured as an Annotated Diagram, a Prioritized Risk List, and an Action Backlog. | 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 an idea hinges on one critical unknown, it prioritizes testing that exact piece of uncertainty first. It separates problem, assumption, solution, and evidence. The result is captured as a prioritized list of assumptions, a test plan, and a result report. |
Complexitydifferent | Medium | Low | Low | Medium |
Timedifferent | 1-3 h | 60-90 min | 45-90 min | 1-2 Wochen pro Iteration |
Participantsdifferent | 2-8 | 4-12 | 2-8 | 2-6 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Issue Map, Positions, Argument Notes | Annotated Diagram, Prioritized Risk List, Action Backlog | Assumption List, Critical Assumptions, Learning Plan | Prioritized Assumption List, Test Plan, Results Report |
Tagsno overlap | RationaleKnowledgeDecision | RiskArchitectureWorkshopValidation | AssumptionsRiskDecisionDiscovery | ExperimentsValidationDiscoveryAssumptions |