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| Criterion |  DevOps ChatOps |  Decision Making PERT Estimation |  Engineering Failure Scenario Analysis |  Decision Making Pre-Mortem |
|---|---|---|---|---|
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. | 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. | In critical processes, it is not enough to plan only for the normal case. Failure Scenario Analysis looks at the path into failure and shows which failures, chains, and control gaps cause the most damage. | In early initiatives with many uncertainties, planning quickly turns too optimistic. A pre-mortem makes the expected failure visible in advance and sharpens the view of causes, gaps, and countermeasures. |
Complexitydifferent | Medium | Medium | Medium | Low |
Timedifferent | Ongoing | 15-45 min | 1-3 h | 20–45 min |
Participantsdifferent | 2-20 | 1-8 | 3-8 | Small cross-functional group |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | Chat Transcript, Action Log, Automations | PERT Estimate, Expected Value, Risk Notes | Failure Scenarios, Risk Notes, Control Gaps, Test and Response Actions | Risk list, Mitigation plan, Assumption log |
Tagsno overlap | CollaborationEngineeringIncident | EstimationUncertaintyRisk | FailureResilienceRisk | RiskDecisionFailurePlanning |