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| Criterion |  Operations Kaizen Event |  Engineering Golden Path |  Architecture ARID (Active Reviews for Intermediate Designs) |  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. | When teams need a reliable default path for frequent use, sprawl quickly emerges without any guiding logic. Golden Path bundles the preferred path so good practice becomes easy and deviation becomes deliberate. | 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 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. |
Complexitysame | Medium | Medium | Medium | Medium |
Timedifferent | 0.5-5 Tage | 1-3 Tage Setup, laufend | 2–4 h review as a planning range; preparation and evaluation additional | 45-90 min |
Participantsdifferent | 4-10 | 2-8 | Designers, developers as users, and facilitation | 2-5 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Kaizen Charter, Waste List, Improvement Experiments, Standard Work Update | Golden Path Guide, Templates, Quality Checks | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | A3 Report, Action Plan, Root Cause Analysis |
Tagsno overlap | LeanContinuous improvementOperations | EngineeringProductivityGovernance | ArchitectureEngineeringFeedbackValidationTasks | LeanProblem solvingCoachingOperations |