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| Criterion |  Knowledge Modeling IBIS |  Decision Making Argument Mapping |  Product Discovery Fake Door Test |  Product Discovery MVP Test Matrix |
|---|---|---|---|---|
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 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. | When demand is still unclear, it measures interest in a feature before it is built. It separates real behavior from polite agreement and deliberately keeps build effort small. | When several minimal variants compete to answer the same question, it makes comparing and choosing between them cleaner. It separates problem, assumption, solution, and evidence. The result is captured as a Test Matrix and a Test Plan. |
Complexitysame | Medium | Medium | Medium | Medium |
Timedifferent | 1-3 h | 1-3 h | 1-5 Tage | 45-75 min |
Participantsdifferent | 2-8 | 1-8 | Nutzertraffic | 2-8 |
Formatdifferent | Workshop + async | Workshop + async | Async | Workshop |
Outputdifferent | Issue Map, Positions, Argument Notes | Argument Map, Evidence Gaps, Decision Rationale | Click Data, Interest Signal, Learning Decision | Test Matrix, Test Plan |
Tagsno overlap | RationaleKnowledgeDecision | SensemakingDecisionRationale | ValidationExperimentsDemandDiscovery | ExperimentsValidationDiscoveryOptions |