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| Criterion |  Systems Thinking Current Reality Tree |  Decision Making Assumption Surfacing |  Product Discovery Assumption Mapping |  Product Discovery Fake Door Test |
|---|---|---|---|---|
Purposedifferent | A Current Reality Tree condenses many symptoms into a few causal chains. The method makes visible which core problems drive several negative effects at once. | 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 assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. | 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. |
Complexitydifferent | High | Low | Medium | Medium |
Timedifferent | 2-6 h | 45-90 min | 45-60 min | 1-5 Tage |
Participantsdifferent | 3-8 | 2-8 | 2-8 | Nutzertraffic |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Async |
Outputdifferent | Current Reality Tree, Core Problems, Intervention Ideas | Assumption List, Critical Assumptions, Learning Plan | Assumption map, Test backlog, Risk ranking | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | Systems thinkingRoot causeConstraintsCausality | AssumptionsRiskDecisionDiscovery | AssumptionsRiskExperimentsValidation | ValidationExperimentsDemandDiscovery |