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| Criterion |  Operations Root Cause Analysis |  DevOps ChatOps |  Operations Failure Mode and Effects Analysis |  Operations Kepner-Tregoe |
|---|---|---|---|---|
Purposedifferent | When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. | 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. | For a disturbance that's hard to pin down, the method cleanly separates problem, cause, and decision. It reduces mixing when symptoms allow several interpretations. |
Complexitydifferent | Medium | Medium | High | High |
Timedifferent | 1-4 h | Ongoing | 2-6 h | 2-8 h |
Participantsdifferent | 3-8 | 2-20 | 3-10 | 2-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Chat Transcript, Action Log, Automations | FMEA Table, Risk Priority, Mitigation Actions | Problem Analysis, Decision Analysis, Risk Plan |
Tagsno overlap | Root causeProblem solvingQualityIncident | CollaborationEngineeringIncident | RiskQualityOperationsRoot cause | Problem solvingRoot causeDecisionOperations |