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| Criterion |  Product Discovery Opportunity Solution Tree |  Engineering Goal Question Metric |  Product Discovery Fake Door Test |
|---|---|---|---|
Purposedifferent | When discovery keeps swinging between goals, ideas, and learning loops, it creates clear steering logic. It connects the desired outcome, opportunities, and experiments into a legible structure. | Helps clarify technical problems, hypotheses, and next steps in concrete terms. It breaks a technical problem into testable parts. The result is captured as a GQM table and metric briefs. | 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. |
Complexitysame | Medium | Medium | Medium |
Timedifferent | 1-2 h Setup, laufend | 90-180 min | 1-5 Tage |
Participantsdifferent | 2-6 | 3-6 | Nutzertraffic |
Formatdifferent | Workshop + async | Workshop | Async |
Outputdifferent | Opportunity Solution Tree, Experiment Backlog, Learning Log | GQM Table, Metric Profiles | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | DiscoveryOutcomesExperimentsOpportunity | MetricsMeasurementEngineeringAlignment | ValidationExperimentsDemandDiscovery |
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