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Selected:Incident CommandAssumption SurfacingFailure Mode and Effects AnalysisRoot Cause Tree Analysis
| Criterion |  DevOps Incident Command |  Decision Making Assumption Surfacing |  Operations Failure Mode and Effects Analysis |  Operations Root Cause Tree Analysis |
|---|---|---|---|---|
Purposedifferent | During an acute incident with several people involved, the method creates a clear leadership and communication structure. It reduces chaos when fast coordination and clean situational awareness are both needed at once. | Plans often contain assumptions that were never openly stated and remain dangerous precisely because of that. Assumption Surfacing makes these silent premises visible and prioritizes which of them carry the initiative or could sink it. | 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 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 | Low | High | Medium |
Timedifferent | As needed | 45-90 min | 2-6 h | 1-3 h |
Participantsdifferent | 4-15 | 2-8 | 3-10 | 2-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | Incident Log, Action Tracker, Stakeholder Updates | Assumption List, Critical Assumptions, Learning Plan | FMEA Table, Risk Priority, Mitigation Actions | Cause Tree, Evidence Notes, Countermeasures |
Tagsno overlap | IncidentOperationsReliability | AssumptionsRiskDecisionDiscovery | RiskQualityOperationsRoot cause | Root causeTreeIncidentQuality |