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| Criterion |  DevOps Blameless Postmortem |  Agile NoEstimates |  Operations A3 Problem Solving |
|---|---|---|---|
Purposedifferent | 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 estimating slows a team down more than it helps, it shifts the focus to flow, small slices, and real lead time. It sorts work by value, risk, and delivery ability. The result is captured as Throughput Data, Flow Forecast, and Slicing Rules. | For a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. |
Complexitysame | Medium | Medium | Medium |
Timedifferent | 30-90 min | laufend | 45-90 min |
Participantsdifferent | 3-12 | 2-12 | 2-5 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Throughput Data, Flow Forecast, Slicing Rules | A3 Report, Action Plan, Root Cause Analysis |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | EstimationForecastingFlow | LeanProblem solvingCoachingOperations |
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