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| Criterion |  DevOps Incident Timeline Analysis |  Decision Making PERT Estimation |  Operations Failure Mode and Effects Analysis |
|---|---|---|---|
Purposedifferent | For an incident with an unclear sequence, the method makes the timeline precisely visible. It separates perception, reaction, and delay so cause and effect become more clearly readable. | On complex initiatives, a plain average tends to understate just how uncertain the outcome really is. It separates options, evaluation criteria, and open risks. The result is captured as a PERT Estimate, Expected Value, and Risk Notes. | 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. |
Complexitydifferent | Medium | Medium | High |
Timedifferent | 60-180 min | 15-45 min | 2-6 h |
Participantsdifferent | 3-10 | 1-8 | 3-10 |
Formatdifferent | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Incident Timeline, Evidence Log, Delay Analysis, Improvement Actions | PERT Estimate, Expected Value, Risk Notes | FMEA Table, Risk Priority, Mitigation Actions |
Tagsno overlap | IncidentTimelineSite Reliability Engineering | EstimationUncertaintyRisk | RiskQualityOperationsRoot cause |
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