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| Criterion |  DevOps ChatOps |  Engineering Hypothesis-Driven Troubleshooting |  DevOps Game Day |  Operations A3 Problem Solving |
|---|---|---|---|---|
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. | When systems fail unexpectedly, spontaneous attempts often produce more noise than insight. Hypothesis-driven Troubleshooting translates symptoms into testable assumptions and makes troubleshooting learnable. | 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 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 | Medium | Medium | High | Medium |
Timedifferent | Ongoing | 30-240 min | Halber Tag | 45-90 min |
Participantsdifferent | 2-20 | 1-6 | 5-20 | 2-5 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Chat Transcript, Action Log, Automations | Hypothesis Log, Test Plan, Evidence Notes, Diagnosis Summary | Simulation Notes, Gaps List, Updated Runbooks | A3 Report, Action Plan, Root Cause Analysis |
Tagsno overlap | CollaborationEngineeringIncident | TroubleshootingProblem solvingDiagnosis | ResilienceOperationsIncident | LeanProblem solvingCoachingOperations |