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| Criterion |  Agile Affinity Estimation |  Operations Failure Mode and Effects Analysis |  Operations After-Action Review |  Operations Fishbone Diagram |
|---|---|---|---|---|
Purposedifferent | When many tasks need to be classified quickly, it sorts them by perceived effort and similarity. It reduces the effort of fine-grained estimation for large volumes. | For a process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability. | 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 problem has several possible contributing factors, the method sorts causes by cause areas. It prevents an initial hunch from blocking the view of other plausible drivers. |
Complexitydifferent | Medium | High | Low | Low |
Timedifferent | 30-90 min | 2-6 h | 20-45 min | 30-60 min |
Participantsdifferent | 3-12 | 3-10 | 3-12 | 2-8 |
Formatdifferent | Workshop | Workshop | Workshop + async | Workshop |
Outputdifferent | Affinity Size Map, Grouped Estimates, Unclear Items | FMEA Table, Risk Priority, Mitigation Actions | Lessons learned, Action items, Event summary | Fishbone Diagram, Cause Categories, Investigation Backlog |
Tagsno overlap | EstimationBacklogRelative sizing | RiskQualityOperationsRoot cause | LearningOperationsImprovement | Root causeQualityOperations |