View methods side by side.
Choose up to four methods. Add them using the search and share the comparison by copying its link.
| Criterion |  Decision Making Assumption Surfacing |  Systems Thinking Future Reality Tree |  Product Discovery Fake Door Test |  Product Discovery Riskiest Assumption Test |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | 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 | Low | High | Medium | Medium |
Timedifferent | 45-90 min | 2-4 h | 1-5 Tage | 1-2 Wochen pro Iteration |
Participantsdifferent | 2-8 | 3-8 | Nutzertraffic | 2-6 |
Formatdifferent | Workshop + async | Workshop | Async | Workshop + async |
Outputdifferent | Assumption List, Critical Assumptions, Learning Plan | Future Reality Tree, Negative Branches, Assumption List, Improved Injections | Click Data, Interest Signal, Learning Decision | Prioritized Assumption List, Test Plan, Results Report |
Tagsno overlap | AssumptionsRiskDecisionDiscovery | Theory of ConstraintsSystems thinkingChange | ValidationExperimentsDemandDiscovery | ExperimentsValidationDiscoveryAssumptions |