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| Criterion |  Product Discovery Smoke Test |  Growth Flywheel |  Growth Pirate Metrics AARRR |  Growth North Star Metric |
|---|---|---|---|---|
Purposedifferent | When demand only needs to be roughly verified, it tests interest with minimal effort. It measures whether people would take a next step at all. | Growth often breaks down where a reinforcing mechanism builds up too much friction. A Flywheel shows the cycle of value, repetition, and reinforcement meant to sustain growth. | 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. | 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. |
Complexitydifferent | Low | Medium | Medium | Medium |
Timedifferent | 1-5 Tage | 60-120 min | 1-2 h Setup, laufend | 1-2 h |
Participantsdifferent | Nutzertraffic | 3-8 | 2-8 | 3-8 |
Formatdifferent | Async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Interest Metrics, Conversion Signal, Learning Note | Flywheel Map, Friction Points, Growth Levers, Experiment Backlog | AARRR funnel, Metric baseline, Experiment backlog | North Star metric, Input metric tree, Measurement cadence |
Tags1 shared | ValidationExperimentsDemandGrowth | GrowthRetentionConversion | GrowthMetricsExperiments | GrowthMetricsAlignmentRetention |