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| Criterion |  Product Discovery Fake Door Test |  Growth North Star Metric |  Product Strategy Counter Metrics |
|---|---|---|---|
Purposedifferent | 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 a headline metric could mask side effects, it adds guardrail signals against unwanted outcomes. It connects customer value, product logic, and decision priorities. The result is captured as a counter-metric list and guardrail definitions. |
Complexitydifferent | Medium | Medium | Low |
Timedifferent | 1-5 Tage | 1-2 h | 30-60 min |
Participantsdifferent | Nutzertraffic | 3-8 | 2-6 |
Formatdifferent | Async | Workshop + async | Workshop + async |
Outputdifferent | Click Data, Interest Signal, Learning Decision | North Star metric, Input metric tree, Measurement cadence | Counter Metric List, Guardrail Definitions |
Tagsno overlap | ValidationExperimentsDemandDiscovery | GrowthMetricsAlignmentRetention | MetricsMeasurementStrategyExperiments |
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