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| Criterion |  Product Strategy Product Canvas |  Product Strategy Counter Metrics |  Product Discovery Fake Door Test |
|---|---|---|---|
Purposedifferent | When product goal and feature scope don't yet fit cleanly together, it creates a shared working picture. It connects need, core features, and assumptions into a solid starting point. | 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. | 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 | Medium | Low | Medium |
Timedifferent | 1-2 h | 30-60 min | 1-5 Tage |
Participantsdifferent | 2-8 | 2-6 | Nutzertraffic |
Formatdifferent | Workshop + async | Workshop + async | Async |
Outputdifferent | Product Canvas, Product Assumptions, Scope Notes | Counter Metric List, Guardrail Definitions | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | CanvasDiscoveryScope | MetricsMeasurementStrategyExperiments | ValidationExperimentsDemandDiscovery |
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