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| Criterion |  DevOps Blameless Postmortem |  Decision Making Pareto Analysis |  DevOps Incident Timeline Analysis |  Operations Root Cause Tree 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. | In many problem situations, effect is distributed unequally across many causes. A Pareto Analysis separates the few drivers with high leverage from the long remainder and focuses attention on what measurably moves the needle. | For an incident with an unclear sequence, the method makes the timeline precisely visible. It separates perception, reaction, and delay so cause and effect become more clearly readable. | For a problem with several suspected causes, the method builds a causal structure instead of a mere list. It makes visible how causes connect and where the strongest points of leverage lie. |
Complexitydifferent | Medium | Low | Medium | Medium |
Timedifferent | 30-90 min | 30-60 min | 60-180 min | 1-3 h |
Participantsdifferent | 3-12 | 1-6 | 3-10 | 2-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Pareto Chart, Top Causes, Focus List | Incident Timeline, Evidence Log, Delay Analysis, Improvement Actions | Cause Tree, Evidence Notes, Countermeasures |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | PrioritizationQualityFocusRoot cause | IncidentTimelineSite Reliability Engineering | Root causeTreeIncidentQuality |