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| Criterion |  DevOps Game Day |  Architecture C4 Model |  Operations Gemba Walk |  Operations 5 Whys |
|---|---|---|---|---|
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. | The C4 Model makes a system legible across several resolution levels, from context down to code. It suits situations where different audiences need to understand the same architecture from different altitudes. | 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 single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. |
Complexitydifferent | High | Low | Low | Low |
Timedifferent | Halber Tag | 1-4 h | 30-120 min | 15-30 min |
Participantsdifferent | 5-20 | 1-5 | 2-6 | 2-6 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop |
Outputdifferent | Simulation Notes, Gaps List, Updated Runbooks | Context Diagram, Container Diagram, Component Diagram | Observation Notes, Improvement Ideas | Root cause notes, Countermeasures |
Tagsno overlap | ResilienceOperationsIncident | ArchitectureCommunicationVisualization | LeanObservationProcessOperations | Root causeIncidentLeanProblem solving |