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| Criterion |  Decision Making Constraint Analysis |  DevOps Blameless Postmortem |  Decision Making Pre-Mortem |
|---|---|---|---|
Purposedifferent | 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. | 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 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. |
Complexitydifferent | Low | Medium | Low |
Timedifferent | 30-90 min | 30-90 min | 20–45 min |
Participantsdifferent | 2-8 | 3-12 | Small cross-functional group |
Formatdifferent | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Constraint List, Hard/Soft Classification, Option Impact Notes, Decision Boundaries | Postmortem Doc, Action Items, Timeline | Risk list, Mitigation plan, Assumption log |
Tagsno overlap | ConstraintsDecisionPlanningOptions | Site Reliability EngineeringIncidentLearningReliability | RiskDecisionFailurePlanning |
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