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Selected:Standard Work AnalysisARID (Active Reviews for Intermediate Designs)Fault IsolationGemba Walk
| Criterion |  Operations Standard Work Analysis |  Architecture ARID (Active Reviews for Intermediate Designs) |  Engineering Fault Isolation |  Operations Gemba Walk |
|---|---|---|---|---|
Purposedifferent | When the same task is done differently depending on the person, the method exposes the reliable core. It creates comparability without unnecessarily choking off needed latitude. | 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. | In technical failures, the visible symptom often gets mixed up with the actual cause. Fault Isolation narrows the fault space and progressively reduces which part of the system is truly affected. | 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 | 1-3 h | 2–4 h review as a planning range; preparation and evaluation additional | 30-180 min | 30-120 min |
Participantsdifferent | 2-6 | Designers, developers as users, and facilitation | 1-6 | 2-6 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Standard Work Sheet, Deviation List, Improved Standard, Training Needs | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | Observation Notes, Improvement Ideas |
Tagsno overlap | LeanProcessQuality | ArchitectureEngineeringFeedbackValidationTasks | TroubleshootingDiagnosisEngineering | LeanObservationProcessOperations |