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| Criterion |  DevOps Game Day |  Architecture ARID (Active Reviews for Intermediate Designs) |  Operations Learning Review |  Operations After-Action Review |
|---|---|---|---|---|
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. | ARID examines how well developers can work with a technical design. It focuses on a part of the system that can still be revised, between the architecture overview and the detailed specification. | After a project phase with mixed results, the method makes learning from the individual case reusable. It connects events, decisions, and systemic conditions into robust insights. | After missions or project phases with unclear outcomes, the method makes visible what actually happened and what can be learned from it. It separates course, effect, and causes so experience turns into solid improvement. |
Complexitydifferent | High | Medium | Medium | Low |
Timedifferent | Halber Tag | 2–4 h review as a planning range; preparation and evaluation additional | 1-3 h | 20-45 min |
Participantsdifferent | 5-20 | Designers, developers as users, and facilitation | 3-10 | 3-12 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Simulation Notes, Gaps List, Updated Runbooks | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | Learning Review Notes, System Factors, Improvement Actions | Lessons learned, Action items, Event summary |
Tagsno overlap | ResilienceOperationsIncident | ArchitectureEngineeringFeedbackValidationTasks | LearningRetrospectiveIncidentOperations | LearningOperationsImprovement |