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| Criterion |  Knowledge Modeling IBIS |  Growth A/B Testing |  Product Discovery MVP Test Matrix |  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. | When two variants compete, discussions quickly decide by taste rather than effect. A/B Testing checks behavior under controlled conditions and separates real improvement from chance or expectation effects. | 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. | 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 | High | Medium | Medium |
Timedifferent | 1-3 h | 1-4 Wochen | 45-75 min | 1-2 Wochen pro Iteration |
Participantsdifferent | 2-8 | 1-6 | 2-8 | 2-6 |
Formatdifferent | Workshop + async | Async | Workshop | Workshop + async |
Outputdifferent | Issue Map, Positions, Argument Notes | Experiment results, Decision log, Learning summary | Test Matrix, Test Plan | Prioritized Assumption List, Test Plan, Results Report |
Tagsno overlap | RationaleKnowledgeDecision | ExperimentsGrowthAnalyticsValidation | ExperimentsValidationDiscoveryOptions | ExperimentsValidationDiscoveryAssumptions |