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Selected:Kaizen EventARID (Active Reviews for Intermediate Designs)8D Problem SolvingA3 Problem Solving
| Criterion |  Operations Kaizen Event |  Architecture ARID (Active Reviews for Intermediate Designs) |  Operations 8D Problem Solving |  Operations A3 Problem Solving |
|---|---|---|---|---|
Purposedifferent | For a tightly scoped process segment with noticeable waste, the method bundles shared energy for change. It suits situations that call for fast learning loops and visible adjustments. | 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. | For an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. | 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. |
Complexitydifferent | Medium | Medium | High | Medium |
Timedifferent | 0.5-5 Tage | 2–4 h review as a planning range; preparation and evaluation additional | 1-6 Wochen | 45-90 min |
Participantsdifferent | 4-10 | Designers, developers as users, and facilitation | 4-10 | 2-5 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Kaizen Charter, Waste List, Improvement Experiments, Standard Work Update | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | A3 Report, Action Plan, Root Cause Analysis |
Tagsno overlap | LeanContinuous improvementOperations | ArchitectureEngineeringFeedbackValidationTasks | QualityProblem solvingRoot cause | LeanProblem solvingCoachingOperations |