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| Criterion |  Operations Runbook |  Decision Making Delphi Method |  DevOps Game Day |  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. | When knowledge is distributed and direct dominance should be avoided, groups quickly fall under the sway of their opinion leaders. The Delphi Method gathers assessments iteratively and gradually brings expert judgments closer together. | In preparing for rare incidents, the method tests response capability under controlled conditions. It shows where assumptions about stability, roles, and recovery are too optimistic. | 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 | High | High | Medium |
Timedifferent | 20-60 min | 1-4 Wochen | Halber Tag | 30-90 min |
Participantsdifferent | 1-4 | 6-30 Experten | 5-20 | 3-12 |
Formatdifferent | Async | Async | Workshop | Workshop + async |
Outputdifferent | Runbook, Checklist, Escalation Path | Expert Forecast, Consensus Range, Assumption Notes | Simulation Notes, Gaps List, Updated Runbooks | Postmortem Doc, Action Items, Timeline |
Tagsno overlap | OperationsReliabilityDocumentation | ForecastingExpertsDecisionStrategy | ResilienceOperationsIncident | Site Reliability EngineeringIncidentLearningReliability |