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| Criterion |  Growth A/B Testing |  Systems Thinking Future Reality Tree |  Product Discovery Fake Door Test |  Product Discovery Learning Card |
|---|---|---|---|---|
Purposedifferent | 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. | 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 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. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. |
Complexitydifferent | High | High | Medium | Low |
Timedifferent | 1-4 Wochen | 2-4 h | 1-5 Tage | 25-40 min |
Participantsdifferent | 1-6 | 3-8 | Nutzertraffic | 1-5 |
Formatdifferent | Async | Workshop | Async | Workshop + async |
Outputdifferent | Experiment results, Decision log, Learning summary | Future Reality Tree, Negative Branches, Assumption List, Improved Injections | Click Data, Interest Signal, Learning Decision | Learning Card with evidence and next action |
Tagsno overlap | ExperimentsGrowthAnalyticsValidation | Theory of ConstraintsSystems thinkingChange | ValidationExperimentsDemandDiscovery | ExperimentsValidationDiscoveryLearning |