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| Criterion |  Growth North Star Metric |  Product Discovery Fake Door Test |  Decision Making Assumption Surfacing |  Product Discovery Riskiest Assumption Test |
|---|---|---|---|---|
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. | 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. | Plans often contain assumptions that were never openly stated and remain dangerous precisely because of that. Assumption Surfacing makes these silent premises visible and prioritizes which of them carry the initiative or could sink it. | When an idea hinges on one critical unknown, it prioritizes testing that exact piece of uncertainty first. It separates problem, assumption, solution, and evidence. The result is captured as a prioritized list of assumptions, a test plan, and a result report. |
Complexitydifferent | Medium | Medium | Low | Medium |
Timedifferent | 1-2 h | 1-5 Tage | 45-90 min | 1-2 Wochen pro Iteration |
Participantsdifferent | 3-8 | Nutzertraffic | 2-8 | 2-6 |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop + async |
Outputdifferent | North Star metric, Input metric tree, Measurement cadence | Click Data, Interest Signal, Learning Decision | Assumption List, Critical Assumptions, Learning Plan | Prioritized Assumption List, Test Plan, Results Report |
Tagsno overlap | GrowthMetricsAlignmentRetention | ValidationExperimentsDemandDiscovery | AssumptionsRiskDecisionDiscovery | ExperimentsValidationDiscoveryAssumptions |