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| Criterion |  Systems Thinking Behavior Over Time Graph |  Product Discovery Test Card |  Systems Thinking Causal Loop Diagram |  Product Discovery Learning Card |
|---|---|---|---|---|
Purposedifferent | A Behavior Over Time Graph shows how a metric or observation develops over time. The method makes trends, breaks, and recurring patterns visible that get lost in snapshots. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. | A Causal Loop Diagram makes feedback, reinforcement, and balance in a system legible. It uncovers side effects and self-reinforcement that stay hidden in linear explanations. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. |
Complexitydifferent | Low | Low | Medium | Low |
Timedifferent | 20-45 min | 20-35 min | 1-3 h | 25-40 min |
Participantsdifferent | 1-10 | 1-5 | 2-8 | 1-5 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Behavior Over Time Graph, Trend Hypotheses, Key Events | Test Card with a pre-set threshold | Causal Loop Diagram, Feedback Notes, Leverage Points | Learning Card with evidence and next action |
Tagsno overlap | Systems thinkingPatternsDynamics | ExperimentsValidationDiscoveryHypothesis | FeedbackSystems thinkingCausalityDynamics | ExperimentsValidationDiscoveryLearning |