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| Criterion |  DevOps ChatOps |  Architecture ARID (Active Reviews for Intermediate Designs) |  Operations Gemba Walk |  Operations 5 Whys |
|---|---|---|---|---|
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. | 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. | 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 | Medium | Medium | Low | Low |
Timedifferent | Ongoing | 2–4 h review as a planning range; preparation and evaluation additional | 30-120 min | 15-30 min |
Participantsdifferent | 2-20 | Designers, developers as users, and facilitation | 2-6 | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | Chat Transcript, Action Log, Automations | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | Observation Notes, Improvement Ideas | Root cause notes, Countermeasures |
Tagsno overlap | CollaborationEngineeringIncident | ArchitectureEngineeringFeedbackValidationTasks | LeanObservationProcessOperations | Root causeIncidentLeanProblem solving |