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| Criterion |  DevOps ChatOps |  Operations Failure Mode and Effects Analysis |  Operations Fishbone Diagram |  Operations Root Cause Tree Analysis |
|---|---|---|---|---|
Purposedifferent | For operational work in a distributed team, the method links communication with direct system control. It records decisions right where the signal, the context, and the execution come together. | 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. | 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. | 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. |
Complexitydifferent | Medium | High | Low | Medium |
Timedifferent | Ongoing | 2-6 h | 30-60 min | 1-3 h |
Participantsdifferent | 2-20 | 3-10 | 2-8 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop |
Outputdifferent | Chat Transcript, Action Log, Automations | FMEA Table, Risk Priority, Mitigation Actions | Fishbone Diagram, Cause Categories, Investigation Backlog | Cause Tree, Evidence Notes, Countermeasures |
Tagsno overlap | CollaborationEngineeringIncident | RiskQualityOperationsRoot cause | Root causeQualityOperations | Root causeTreeIncidentQuality |