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| Criterion |  Agile NoEstimates |  Decision Making PERT Estimation |  DevOps Blameless Postmortem |
|---|---|---|---|
Purposedifferent | 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. | On complex initiatives, a plain average tends to understate just how uncertain the outcome really is. It separates options, evaluation criteria, and open risks. The result is captured as a PERT Estimate, Expected Value, and Risk Notes. | 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. |
Complexitysame | Medium | Medium | Medium |
Timedifferent | laufend | 15-45 min | 30-90 min |
Participantsdifferent | 2-12 | 1-8 | 3-12 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Throughput Data, Flow Forecast, Slicing Rules | PERT Estimate, Expected Value, Risk Notes | Postmortem Doc, Action Items, Timeline |
Tagsno overlap | EstimationForecastingFlow | EstimationUncertaintyRisk | Site Reliability EngineeringIncidentLearningReliability |
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