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| Criterion |  DevOps Blameless Postmortem |  Agile NoEstimates |  Systems Thinking Current Reality Tree |
|---|---|---|---|
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. | A Current Reality Tree condenses many symptoms into a few causal chains. The method makes visible which core problems drive several negative effects at once. |
Complexitydifferent | Medium | Medium | High |
Timedifferent | 30-90 min | laufend | 2-6 h |
Participantsdifferent | 3-12 | 2-12 | 3-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Throughput Data, Flow Forecast, Slicing Rules | Current Reality Tree, Core Problems, Intervention Ideas |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | EstimationForecastingFlow | Systems thinkingRoot causeConstraintsCausality |
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