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| Criterion |  Systems Thinking Future Reality Tree |  Product Discovery Test Card |
|---|---|---|
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. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. |
Complexitydifferent | High | Low |
Timedifferent | 2-4 h | 20-35 min |
Participantsdifferent | 3-8 | 1-5 |
Formatdifferent | Workshop | Workshop + async |
Outputdifferent | Future Reality Tree, Negative Branches, Assumption List, Improved Injections | Test Card with a pre-set threshold |
Tagsno overlap | Theory of ConstraintsSystems thinkingChange | ExperimentsValidationDiscoveryHypothesis |
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