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| Criterion |  Decision Making Risk Matrix |  DevOps Blameless Postmortem |  Operations After-Action Review |  Operations ABC Analysis |
|---|---|---|---|---|
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 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. | 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. | With many similar objects of differing economic significance, the method prioritizes effort by effect. It separates what needs regular steering from what rarely needs attention. |
Complexitydifferent | Low | Medium | Low | Low |
Timedifferent | 30-60 min | 30-90 min | 20-45 min | 30-60 min |
Participantsdifferent | 3-10 | 3-12 | 3-12 | 1-5 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Async |
Outputdifferent | Risk Matrix, Top Risk List | Postmortem Doc, Action Items, Timeline | Lessons learned, Action items, Event summary | ABC Classification, Focus Rules, Control List |
Tagsno overlap | RiskDecisionPrioritizationAssessment | Site Reliability EngineeringIncidentLearningReliability | LearningOperationsImprovement | PrioritizationOperationsPortfolio |