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| Criterion |  Systems Thinking Future Reality Tree |  Systems Thinking Current Reality Tree |  Product Discovery Assumption Mapping |  Systems Thinking Evaporating Cloud |
|---|---|---|---|---|
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. | A Current Reality Tree condenses many symptoms into a few causal chains. The method makes visible which core problems drive several negative effects at once. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. | The method makes visible why two seemingly incompatible demands arise and which assumption must be tested to resolve the conflict. |
Complexitydifferent | High | High | Medium | Medium |
Timedifferent | 2-4 h | 2-6 h | 45-60 min | 60-120 min |
Participantsdifferent | 3-8 | 3-8 | 2-8 | 2-8 |
Formatdifferent | Workshop | Workshop | Workshop + async | Workshop |
Outputdifferent | Future Reality Tree, Negative Branches, Assumption List, Improved Injections | Current Reality Tree, Core Problems, Intervention Ideas | Assumption map, Test backlog, Risk ranking | Conflict Cloud, Assumption List, Breakthrough Ideas, Next Experiments |
Tagsno overlap | Theory of ConstraintsSystems thinkingChange | Systems thinkingRoot causeConstraintsCausality | AssumptionsRiskExperimentsValidation | Theory of ConstraintsAssumptionsSystems thinking |