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| Criterion |  Systems Thinking Future Reality Tree |  Growth Funnel Analysis |  Product Discovery Assumption Mapping |  Product Discovery Riskiest Assumption Test |
|---|---|---|---|---|
Purposedifferent | A Future Reality Tree shows how desired actions are meant to lead to a better system state. The method checks whether a path of change holds together logically before time flows into implementation. | When many visitors or users drop off along the way, the reason behind the number often stays hidden. Funnel Analysis exposes these transitions and makes visible exactly where the path collapses. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. | 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 | High | Medium | Medium | Medium |
Timedifferent | 2-4 h | 1-3 h | 45-60 min | 1-2 Wochen pro Iteration |
Participantsdifferent | 3-8 | 1-5 | 2-8 | 2-6 |
Formatdifferent | Workshop | Async | Workshop + async | Workshop + async |
Outputdifferent | Future Reality Tree, Negative Branches, Assumption List, Improved Injections | Funnel report, Drop-off analysis, Optimization hypotheses | Assumption map, Test backlog, Risk ranking | Prioritized Assumption List, Test Plan, Results Report |
Tagsno overlap | Theory of ConstraintsSystems thinkingChange | AnalyticsConversionGrowth | AssumptionsRiskExperimentsValidation | ExperimentsValidationDiscoveryAssumptions |