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| Criterion |  Growth North Star Metric |  Growth Pirate Metrics AARRR |  Product Discovery Learning Card |  Growth Growth Experiment |
|---|---|---|---|---|
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. | For products with complex usage paths, overall growth alone is too coarse to reveal bottlenecks. Pirate Metrics breaks the relationship with the product into consecutive stages and shows where the funnel actually leaks. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. | When growth ideas surface quickly, the temptation to build immediately instead of learning is high. A Growth Experiment frames an assumption so target group, lever, and measurement are clear before the first deployment. |
Complexitydifferent | Medium | Medium | Low | Medium |
Timedifferent | 1-2 h | 1-2 h Setup, laufend | 25-40 min | 1-2 Wochen |
Participantsdifferent | 3-8 | 2-8 | 1-5 | 1-6 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | North Star metric, Input metric tree, Measurement cadence | AARRR funnel, Metric baseline, Experiment backlog | Learning Card with evidence and next action | Experiment card, Result summary, Next bet |
Tagsno overlap | GrowthMetricsAlignmentRetention | GrowthMetricsExperiments | ExperimentsValidationDiscoveryLearning | MarketingGrowthExperimentsLearning |