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| Criterion |  Product Discovery Test Card |  Systems Thinking Current Reality Tree |  Product Discovery Learning Card |  Product Discovery Experiment Canvas |
|---|---|---|---|---|
Purposedifferent | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. | 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. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. | When experiments become unreadable after the fact, it arranges hypothesis, signal, and learning goal on a single canvas. It separates problem, assumption, solution, and evidence. The result is captured as a Completed Experiment Canvas and a Success Metric. |
Complexitydifferent | Low | High | Low | Low |
Timedifferent | 20-35 min | 2-6 h | 25-40 min | 30-60 min |
Participantsdifferent | 1-5 | 3-8 | 1-5 | 1-5 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Test Card with a pre-set threshold | Current Reality Tree, Core Problems, Intervention Ideas | Learning Card with evidence and next action | Completed Experiment Canvas, Success Metric |
Tagsno overlap | ExperimentsValidationDiscoveryHypothesis | Systems thinkingRoot causeConstraintsCausality | ExperimentsValidationDiscoveryLearning | ExperimentsValidationDiscoveryHypothesis |