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| Criterion |  Growth Flywheel |  Product Discovery Fake Door Test |  Growth North Star Metric |  Product Discovery Experiment Canvas |
|---|---|---|---|---|
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 demand is still unclear, it measures interest in a feature before it is built. It separates real behavior from polite agreement and deliberately keeps build effort small. | 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. |
Complexitydifferent | Medium | Medium | Medium | Low |
Timedifferent | 60-120 min | 1-5 Tage | 1-2 h | 30-60 min |
Participantsdifferent | 3-8 | Nutzertraffic | 3-8 | 1-5 |
Formatdifferent | Workshop | Async | Workshop + async | Workshop + async |
Outputdifferent | Flywheel Map, Friction Points, Growth Levers, Experiment Backlog | Click Data, Interest Signal, Learning Decision | North Star metric, Input metric tree, Measurement cadence | Completed Experiment Canvas, Success Metric |
Tagsno overlap | GrowthRetentionConversion | ValidationExperimentsDemandDiscovery | GrowthMetricsAlignmentRetention | ExperimentsValidationDiscoveryHypothesis |