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| Criterion |  DevOps Incident Timeline Analysis |  Decision Making PERT Estimation |  Operations Barrier 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 risk that can only be managed through multiple layers of protection, the method examines the effectiveness of each barrier. It shows where safeguards are missing, too weak, or fail under real conditions. |
Complexitysame | Medium | Medium | Medium |
Timedifferent | 60-180 min | 15-45 min | 2-4 h |
Participantsdifferent | 3-10 | 1-8 | 2-6 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Incident Timeline, Evidence Log, Delay Analysis, Improvement Actions | PERT Estimate, Expected Value, Risk Notes | Barrier Inventory, Failure Analysis per Barrier, Action Backlog |
Tagsno overlap | IncidentTimelineSite Reliability Engineering | EstimationUncertaintyRisk | Root causeSafetyIncident |
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