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| Criterion |  DevOps Blameless Postmortem |  Delivery RAID Log |  Operations After-Action Review |  Operations Failure Mode and Effects Analysis |
|---|---|---|---|---|
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, sequence, and delivery flow in concrete terms. It makes work, boundaries, and order steerable. The result is captured as a RAID Log and a source for status reporting. | After missions or project phases with unclear outcomes, the method makes visible what actually happened and what can be learned from it. It separates course, effect, and causes so experience turns into solid improvement. | For a process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability. |
Complexitydifferent | Medium | Low | Low | High |
Timedifferent | 30-90 min | 30 min Setup, dann laufend | 20-45 min | 2-6 h |
Participantsdifferent | 3-12 | 1-3 maintaining, briefing for everyone | 3-12 | 3-10 |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop |
Outputdifferent | Postmortem Doc, Action Items, Timeline | RAID Log, Status Report Source | Lessons learned, Action items, Event summary | FMEA Table, Risk Priority, Mitigation Actions |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | RiskTrackingStakeholdersGovernance | LearningOperationsImprovement | RiskQualityOperationsRoot cause |