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| Criterion |  DevOps ChatOps |  Operations A3 Problem Solving |  Architecture ARID (Active Reviews for Intermediate Designs) |  Operations Gemba Walk |
|---|---|---|---|---|
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. | 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. | 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. | 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. |
Complexitydifferent | Medium | Medium | Medium | Low |
Timedifferent | Ongoing | 45-90 min | 2–4 h review as a planning range; preparation and evaluation additional | 30-120 min |
Participantsdifferent | 2-20 | 2-5 | Designers, developers as users, and facilitation | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Chat Transcript, Action Log, Automations | A3 Report, Action Plan, Root Cause Analysis | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | Observation Notes, Improvement Ideas |
Tagsno overlap | CollaborationEngineeringIncident | LeanProblem solvingCoachingOperations | ArchitectureEngineeringFeedbackValidationTasks | LeanObservationProcessOperations |