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| Criterion |  Product Discovery Fake Door Test |  DevOps Blameless Postmortem |  Product Discovery Smoke Test |
|---|---|---|---|
Purposedifferent | 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. | After an incident with damage or a near miss, the method creates a sober field for learning without assigning blame. It directs attention to the course of events, conditions, and effective countermeasures. | 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 | 1-5 Tage | 30-90 min | 1-5 Tage |
Participantsdifferent | Nutzertraffic | 3-12 | Nutzertraffic |
Formatdifferent | Async | Workshop + async | Async |
Outputdifferent | Click Data, Interest Signal, Learning Decision | Postmortem Doc, Action Items, Timeline | Interest Metrics, Conversion Signal, Learning Note |
Tagsno overlap | ValidationExperimentsDemandDiscovery | Site Reliability EngineeringIncidentLearningReliability | ValidationExperimentsDemandGrowth |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
