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| Criterion |  DevOps Blameless Postmortem |  Decision Making Delphi Method |  DevOps Incident Command |  Operations Learning Review |
|---|---|---|---|---|
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 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. | During an acute incident with several people involved, the method creates a clear leadership and communication structure. It reduces chaos when fast coordination and clean situational awareness are both needed at once. | After a project phase with mixed results, the method makes learning from the individual case reusable. It connects events, decisions, and systemic conditions into robust insights. |
Complexitydifferent | Medium | High | Medium | Medium |
Timedifferent | 30-90 min | 1-4 Wochen | As needed | 1-3 h |
Participantsdifferent | 3-12 | 6-30 Experten | 4-15 | 3-10 |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Expert Forecast, Consensus Range, Assumption Notes | Incident Log, Action Tracker, Stakeholder Updates | Learning Review Notes, System Factors, Improvement Actions |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | ForecastingExpertsDecisionStrategy | IncidentOperationsReliability | LearningRetrospectiveIncidentOperations |