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| Criterion |  Operations Visual Management |  Product Discovery Smoke Test |  DevOps Blameless Postmortem |  Product Discovery Fake Door Test |
|---|---|---|---|---|
Purposedifferent | With high tempo and many parallel topics, the method makes status, deviations, and priorities visible at a glance. It reduces search effort and prevents what matters from getting lost in daily work. | 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. | 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 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 | Low | Low | Medium | Medium |
Timedifferent | Ongoing | 1-5 Tage | 30-90 min | 1-5 Tage |
Participantsdifferent | 1-20 | Nutzertraffic | 3-12 | Nutzertraffic |
Formatdifferent | Workshop + async | Async | Workshop + async | Async |
Outputdifferent | Visual Board, Status Indicators, Exception Cues | Interest Metrics, Conversion Signal, Learning Note | Postmortem Doc, Action Items, Timeline | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | SignalsOperationsVisual management | ValidationExperimentsDemandGrowth | Site Reliability EngineeringIncidentLearningReliability | ValidationExperimentsDemandDiscovery |