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| Criterion |  DevOps Game Day |  DevOps ChatOps |  Operations Failure Mode and Effects Analysis |  Operations Root Cause Tree Analysis |
|---|---|---|---|---|
Purposedifferent | In preparing for rare incidents, the method tests response capability under controlled conditions. It shows where assumptions about stability, roles, and recovery are too optimistic. | 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 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 | High | Medium | High | Medium |
Timedifferent | Halber Tag | Ongoing | 2-6 h | 1-3 h |
Participantsdifferent | 5-20 | 2-20 | 3-10 | 2-8 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop |
Outputdifferent | Simulation Notes, Gaps List, Updated Runbooks | Chat Transcript, Action Log, Automations | FMEA Table, Risk Priority, Mitigation Actions | Cause Tree, Evidence Notes, Countermeasures |
Tagsno overlap | ResilienceOperationsIncident | CollaborationEngineeringIncident | RiskQualityOperationsRoot cause | Root causeTreeIncidentQuality |