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| Criterion |  Operations Root Cause Tree Analysis |  Operations Failure Mode and Effects Analysis |  DevOps Incident Command |
|---|---|---|---|
Purposedifferent | For a problem with several suspected causes, the method builds a causal structure instead of a mere list. It makes visible how causes connect and where the strongest points of leverage lie. | 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. | 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 | High | Medium |
Timedifferent | 1-3 h | 2-6 h | As needed |
Participantsdifferent | 2-8 | 3-10 | 4-15 |
Formatdifferent | Workshop | Workshop | Workshop + async |
Outputdifferent | Cause Tree, Evidence Notes, Countermeasures | FMEA Table, Risk Priority, Mitigation Actions | Incident Log, Action Tracker, Stakeholder Updates |
Tagsno overlap | Root causeTreeIncidentQuality | RiskQualityOperationsRoot cause | IncidentOperationsReliability |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
