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| Criterion |  Engineering Fault Isolation |  Operations After-Action Review |  DevOps Incident Command |
|---|---|---|---|
Purposedifferent | In technical failures, the visible symptom often gets mixed up with the actual cause. Fault Isolation narrows the fault space and progressively reduces which part of the system is truly affected. | 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. | During an acute incident with several people involved, the method creates a clear leadership and communication structure. It reduces chaos when fast coordination and clean situational awareness are both needed at once. |
Complexitydifferent | Medium | Low | Medium |
Timedifferent | 30-180 min | 20-45 min | As needed |
Participantsdifferent | 1-6 | 3-12 | 4-15 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | Lessons learned, Action items, Event summary | Incident Log, Action Tracker, Stakeholder Updates |
Tagsno overlap | TroubleshootingDiagnosisEngineering | LearningOperationsImprovement | IncidentOperationsReliability |
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