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| Criterion |  DevOps Blameless Postmortem |  Decision Making Delphi Method |  Decision Making Wideband Delphi |  DevOps Incident Command |
|---|---|---|---|---|
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. | A single opinion rarely holds up for planning when the future is genuinely uncertain. It separates options, evaluation criteria, and open risks. The result is captured as an Estimate Range, Assumption Log, and Expert Consensus Notes. | 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. |
Complexitydifferent | Medium | High | High | Medium |
Timedifferent | 30-90 min | 1-4 Wochen | 1-4 h or multiple rounds | As needed |
Participantsdifferent | 3-12 | 6-30 Experten | 4-12 Experten | 4-15 |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop + async |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Expert Forecast, Consensus Range, Assumption Notes | Estimate Range, Assumption Log, Expert Consensus Notes | Incident Log, Action Tracker, Stakeholder Updates |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | ForecastingExpertsDecisionStrategy | EstimationExpertsForecasting | IncidentOperationsReliability |