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| Criterion |  Engineering Goal Question Metric |  Product Discovery Fake Door Test |  Product Discovery Smoke Test |
|---|---|---|---|
Purposedifferent | 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. | When demand only needs to be roughly verified, it tests interest with minimal effort. It measures whether people would take a next step at all. |
Complexitydifferent | Medium | Medium | Low |
Timedifferent | 90-180 min | 1-5 Tage | 1-5 Tage |
Participantsdifferent | 3-6 | Nutzertraffic | Nutzertraffic |
Formatdifferent | Workshop | Async | Async |
Outputdifferent | GQM Table, Metric Profiles | Click Data, Interest Signal, Learning Decision | Interest Metrics, Conversion Signal, Learning Note |
Tagsno overlap | MetricsMeasurementEngineeringAlignment | ValidationExperimentsDemandDiscovery | ValidationExperimentsDemandGrowth |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
