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| Criterion |  DevOps Game Day |  Operations Runbook |  Operations Gemba Walk |  Operations A3 Problem Solving |
|---|---|---|---|---|
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 recurring operational tasks or incidents, the method keeps solid action logic ready. It reduces uncertainty when time pressure, role changes, or rare situations demand fast access. | When there is uncertainty about the real course of a process, the method brings observation to the place where work happens. It combines perception, follow-up questions, and process knowledge so decisions rest on actual workflows instead of assumptions. | For a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. |
Complexitydifferent | High | Low | Low | Medium |
Timedifferent | Halber Tag | 20-60 min | 30-120 min | 45-90 min |
Participantsdifferent | 5-20 | 1-4 | 2-6 | 2-5 |
Formatdifferent | Workshop | Async | Workshop | Workshop + async |
Outputdifferent | Simulation Notes, Gaps List, Updated Runbooks | Runbook, Checklist, Escalation Path | Observation Notes, Improvement Ideas | A3 Report, Action Plan, Root Cause Analysis |
Tags1 shared | ResilienceOperationsIncident | OperationsReliabilityDocumentation | LeanObservationProcessOperations | LeanProblem solvingCoachingOperations |