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| Criterion |  DevOps Game Day |  Decision Making Assumption Surfacing |  Decision Making Pre-Mortem |
|---|---|---|---|
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. | 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. | 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 | High | Low | Low |
Timedifferent | Halber Tag | 45-90 min | 20–45 min |
Participantsdifferent | 5-20 | 2-8 | Small cross-functional group |
Formatdifferent | Workshop | Workshop + async | Workshop |
Outputdifferent | Simulation Notes, Gaps List, Updated Runbooks | Assumption List, Critical Assumptions, Learning Plan | Risk list, Mitigation plan, Assumption log |
Tagsno overlap | ResilienceOperationsIncident | AssumptionsRiskDecisionDiscovery | RiskDecisionFailurePlanning |
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