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| Criterion |  Growth North Star Metric |  Product Discovery Experiment Canvas |  Product Discovery Hypothesis Prioritization Canvas |  Product Discovery Learning Card |
|---|---|---|---|---|
Purposedifferent | When product teams track many metrics, the view of the actual customer outcome easily gets lost. A North Star Metric bundles growth, usage, and value contribution into one signal that makes the system's direction 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. | When many hypotheses compete for attention, it brings order to their learning sequence and importance. It separates problem, assumption, solution, and evidence. The result is captured as a prioritization canvas and a hypothesis backlog. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. |
Complexitydifferent | Medium | Low | Medium | Low |
Timedifferent | 1-2 h | 30-60 min | 60-90 min | 25-40 min |
Participantsdifferent | 3-8 | 1-5 | 3-8 | 1-5 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | North Star metric, Input metric tree, Measurement cadence | Completed Experiment Canvas, Success Metric | Prioritization Canvas, Hypothesis Backlog | Learning Card with evidence and next action |
Tagsno overlap | GrowthMetricsAlignmentRetention | ExperimentsValidationDiscoveryHypothesis | ExperimentsPrioritizationDiscoveryHypothesis | ExperimentsValidationDiscoveryLearning |