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| Criterion |  Product Discovery Fake Door Test |  UX Research HEART Framework |  Product Discovery Learning Card |  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. | Helps clarify observations, needs, and patterns in concrete terms. It groups observations into patterns, questions, and decisions. The result is captured as a HEART-GSM table and dashboard. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight 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 | Low |
Timedifferent | 1-5 Tage | 120 min initial, dann laufend | 25-40 min | 30-60 min |
Participantsdifferent | Nutzertraffic | 3-6 | 1-5 | 2-6 |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Click Data, Interest Signal, Learning Decision | HEART-GSM Table, Dashboard | Learning Card with evidence and next action | Counter Metric List, Guardrail Definitions |
Tagsno overlap | ValidationExperimentsDemandDiscovery | MetricsUX researchMeasurementSatisfaction | ExperimentsValidationDiscoveryLearning | MetricsMeasurementStrategyExperiments |