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| Criterion |  DevOps Incident Timeline Analysis |  Decision Making Pre-Mortem |  DevOps Blameless Postmortem |  Decision Making Constraint Analysis |
|---|---|---|---|---|
Purposedifferent | 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. | In early initiatives with many uncertainties, planning quickly turns too optimistic. A pre-mortem makes the expected failure visible in advance and sharpens the view of causes, gaps, and countermeasures. | 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 an initiative stalls, the limit often lies not in the idea but in hard or soft boundary conditions. Constraint Analysis separates these limits and shows which of them can actually be shaped. |
Complexitydifferent | Medium | Low | Medium | Low |
Timedifferent | 60-180 min | 20–45 min | 30-90 min | 30-90 min |
Participantsdifferent | 3-10 | Small cross-functional group | 3-12 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Incident Timeline, Evidence Log, Delay Analysis, Improvement Actions | Risk list, Mitigation plan, Assumption log | Postmortem Doc, Action Items, Timeline | Constraint List, Hard/Soft Classification, Option Impact Notes, Decision Boundaries |
Tagsno overlap | IncidentTimelineSite Reliability Engineering | RiskDecisionFailurePlanning | Site Reliability EngineeringIncidentLearningReliability | ConstraintsDecisionPlanningOptions |