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| Criterion |  Growth Flywheel |  Growth A/B Testing |  Growth North Star Metric |  Product Discovery Assumption Mapping |
|---|---|---|---|---|
Purposedifferent | 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. | When two variants compete, discussions quickly decide by taste rather than effect. A/B Testing checks behavior under controlled conditions and separates real improvement from chance or expectation effects. | 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 assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | Medium | High | Medium | Medium |
Timedifferent | 60-120 min | 1-4 Wochen | 1-2 h | 45-60 min |
Participantsdifferent | 3-8 | 1-6 | 3-8 | 2-8 |
Formatdifferent | Workshop | Async | Workshop + async | Workshop + async |
Outputdifferent | Flywheel Map, Friction Points, Growth Levers, Experiment Backlog | Experiment results, Decision log, Learning summary | North Star metric, Input metric tree, Measurement cadence | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | GrowthRetentionConversion | ExperimentsGrowthAnalyticsValidation | GrowthMetricsAlignmentRetention | AssumptionsRiskExperimentsValidation |