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| Criterion |  Systems Thinking Future Reality Tree |  Systems Thinking Intervention Mapping |  Product Discovery Problem Interview |  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. | Intervention Mapping translates a need for change into a planned, evaluable program. The method connects target group, determinants, actions, and measurement into a traceable chain. | When the picture of the problem still needs to become solid, it asks about real situations and consequences. It separates genuine suffering from mere interest in a solution. | 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 | High | Medium | Medium |
Timedifferent | 2-4 h | 1-5 Tage | 30-60 min je Interview | 1-5 Tage |
Participantsdifferent | 3-8 | 4-12 | 5-12 Interviews | Nutzertraffic |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Async |
Outputdifferent | Future Reality Tree, Negative Branches, Assumption List, Improved Injections | Logic Model, Change Objectives, Intervention Components, Evaluation Plan | Problem Evidence, Risk Notes, Customer Segments | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | Theory of ConstraintsSystems thinkingChange | ChangeSystems thinkingCapability | DiscoveryInterviewsValidation | ValidationExperimentsDemandDiscovery |