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| Criterion |  Decision Making Risk Matrix |  Operations After-Action Review |  DevOps Blameless Postmortem |
|---|---|---|---|
Purposedifferent | When a project faces many possible disruptions, it quickly becomes unclear which risks deserve attention first. It separates options, evaluation criteria, and open risks. The result is captured as a Risk Matrix and a Top Risk List. | 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. | 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. |
Complexitydifferent | Low | Low | Medium |
Timedifferent | 30-60 min | 20-45 min | 30-90 min |
Participantsdifferent | 3-10 | 3-12 | 3-12 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Risk Matrix, Top Risk List | Lessons learned, Action items, Event summary | Postmortem Doc, Action Items, Timeline |
Tagsno overlap | RiskDecisionPrioritizationAssessment | LearningOperationsImprovement | Site Reliability EngineeringIncidentLearningReliability |
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