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| Criterion |  Systems Thinking Future Reality Tree |  Product Discovery Experiment Canvas |  Systems Thinking Evaporating Cloud |  Product Discovery Fake Door 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 experiments become unreadable after the fact, it arranges hypothesis, signal, and learning goal on a single canvas. It separates problem, assumption, solution, and evidence. The result is captured as a Completed Experiment Canvas and a Success Metric. | The method makes visible why two seemingly incompatible demands arise and which assumption must be tested to resolve the conflict. | 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 | 2-4 h | 30-60 min | 60-120 min | 1-5 Tage |
Participantsdifferent | 3-8 | 1-5 | 2-8 | Nutzertraffic |
Formatdifferent | Workshop | Workshop + async | Workshop | Async |
Outputdifferent | Future Reality Tree, Negative Branches, Assumption List, Improved Injections | Completed Experiment Canvas, Success Metric | Conflict Cloud, Assumption List, Breakthrough Ideas, Next Experiments | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | Theory of ConstraintsSystems thinkingChange | ExperimentsValidationDiscoveryHypothesis | Theory of ConstraintsAssumptionsSystems thinking | ValidationExperimentsDemandDiscovery |