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| Criterion |  Product Strategy Counter Metrics |  UX Research HEART Framework |  Product Discovery MVP Test Matrix |  Product Discovery Fake Door 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. | 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. | When several minimal variants compete to answer the same question, it makes comparing and choosing between them cleaner. It separates problem, assumption, solution, and evidence. The result is captured as a Test Matrix and a Test Plan. | 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. |
Complexitydifferent | Low | Medium | Medium | Medium |
Timedifferent | 30-60 min | 120 min initial, dann laufend | 45-75 min | 1-5 Tage |
Participantsdifferent | 2-6 | 3-6 | 2-8 | Nutzertraffic |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Async |
Outputdifferent | Counter Metric List, Guardrail Definitions | HEART-GSM Table, Dashboard | Test Matrix, Test Plan | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | MetricsMeasurementStrategyExperiments | MetricsUX researchMeasurementSatisfaction | ExperimentsValidationDiscoveryOptions | ValidationExperimentsDemandDiscovery |