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| Criterion |  DevOps Blameless Postmortem |  Delivery Cost of Delay |  Decision Making Delphi Method |
|---|---|---|---|
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. | Helps clarify scope, order, and delivery flow in concrete terms. It makes work, constraints, and sequence manageable. The result is captured as a Cost of Delay table and prioritization sequence. | 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. |
Complexitydifferent | Medium | High | High |
Timedifferent | 30-90 min | 90-180 min | 1-4 Wochen |
Participantsdifferent | 3-12 | 3-8 | 6-30 Experten |
Formatdifferent | Workshop + async | Workshop | Async |
Outputdifferent | Postmortem Doc, Action Items, Timeline | CoD Table, Prioritization Sequence | Expert Forecast, Consensus Range, Assumption Notes |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | PrioritizationDeliveryEconomicsDecision | ForecastingExpertsDecisionStrategy |
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