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| Criterion |  Operations Failure Mode and Effects Analysis |  Product Discovery Smoke Test |  Product Discovery Fake Door Test |
|---|---|---|---|
Purposedifferent | For a process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability. | 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. | 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 | High | Low | Medium |
Timedifferent | 2-6 h | 1-5 Tage | 1-5 Tage |
Participantsdifferent | 3-10 | Nutzertraffic | Nutzertraffic |
Formatdifferent | Workshop | Async | Async |
Outputdifferent | FMEA Table, Risk Priority, Mitigation Actions | Interest Metrics, Conversion Signal, Learning Note | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | RiskQualityOperationsRoot cause | ValidationExperimentsDemandGrowth | ValidationExperimentsDemandDiscovery |
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