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| Criterion |  Operations Runbook |  Decision Making Assumption Surfacing |  DevOps Blameless Postmortem |
|---|---|---|---|
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. | Plans often contain assumptions that were never openly stated and remain dangerous precisely because of that. Assumption Surfacing makes these silent premises visible and prioritizes which of them carry the initiative or could sink it. | 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. |
Complexitydifferent | Low | Low | Medium |
Timedifferent | 20-60 min | 45-90 min | 30-90 min |
Participantsdifferent | 1-4 | 2-8 | 3-12 |
Formatdifferent | Async | Workshop + async | Workshop + async |
Outputdifferent | Runbook, Checklist, Escalation Path | Assumption List, Critical Assumptions, Learning Plan | Postmortem Doc, Action Items, Timeline |
Tagsno overlap | OperationsReliabilityDocumentation | AssumptionsRiskDecisionDiscovery | Site Reliability EngineeringIncidentLearningReliability |
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