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| Criterion |  Product Strategy Counter Metrics |  Product Discovery Learning Card |  Product Discovery Fake Door Test |  Product Discovery Riskiest Assumption Test |
|---|---|---|---|---|
Purposedifferent | 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. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight 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. | 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 | Low | Low | Medium | Medium |
Timedifferent | 30-60 min | 25-40 min | 1-5 Tage | 1-2 Wochen pro Iteration |
Participantsdifferent | 2-6 | 1-5 | Nutzertraffic | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Async | Workshop + async |
Outputdifferent | Counter Metric List, Guardrail Definitions | Learning Card with evidence and next action | Click Data, Interest Signal, Learning Decision | Prioritized Assumption List, Test Plan, Results Report |
Tags1 shared | MetricsMeasurementStrategyExperiments | ExperimentsValidationDiscoveryLearning | ValidationExperimentsDemandDiscovery | ExperimentsValidationDiscoveryAssumptions |