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| Criterion |  Engineering Fault Isolation |  Operations ABC Analysis |  Operations After-Action Review |  Agile Sprint Retrospective |
|---|---|---|---|---|
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. | 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. | 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. | When a sprint is over and friction shouldn't simply be carried forward, it opens the view onto collaboration and patterns. It creates space to see causes and changes together. |
Complexitydifferent | Medium | Low | Low | Low |
Timedifferent | 30-180 min | 30-60 min | 20-45 min | Up to 3 hours for a one-month Sprint; shorter Sprints are usually shorter |
Participantsdifferent | 1-6 | 1-5 | 3-12 | Scrum Team |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop |
Outputdifferent | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | ABC Classification, Focus Rules, Control List | Lessons learned, Action items, Event summary | Improvement actions, Team agreements |
Tagsno overlap | TroubleshootingDiagnosisEngineering | PrioritizationOperationsPortfolio | LearningOperationsImprovement | RetrospectiveImprovementLearning |