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| Criterion |  Operations Runbook |  Decision Making Three-Point Estimation |  DevOps Blameless Postmortem |  Operations After-Action Review |
|---|---|---|---|---|
Purposedifferent | For recurring operational tasks or incidents, the method keeps solid action logic ready. It reduces uncertainty when time pressure, role changes, or rare situations demand fast access. | A single estimate for effort, time, or risk often looks too smooth for the real uncertainty behind it. It separates options, evaluation criteria, and open risks. The result is captured as a Three-Point Estimate, Risk Range, and Assumption 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. | After missions or project phases with unclear outcomes, the method makes visible what actually happened and what can be learned from it. It separates course, effect, and causes so experience turns into solid improvement. |
Complexitydifferent | Low | Medium | Medium | Low |
Timedifferent | 20-60 min | 10-30 min je Item | 30-90 min | 20-45 min |
Participantsdifferent | 1-4 | 1-8 | 3-12 | 3-12 |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Runbook, Checklist, Escalation Path | Three-Point Estimate, Risk Range, Assumption Notes | Postmortem Doc, Action Items, Timeline | Lessons learned, Action items, Event summary |
Tagsno overlap | OperationsReliabilityDocumentation | EstimationUncertaintyForecasting | Site Reliability EngineeringIncidentLearningReliability | LearningOperationsImprovement |