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| Criterion |  Operations A3 Problem Solving |  Operations Gemba Walk |  Architecture Software Architecture Canvas |
|---|---|---|---|
Purposedifferent | 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. | 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. | The Software Architecture Canvas reduces a system to the most important architecture decisions, constraints, and interfaces. It is useful when teams need a resilient overall picture quickly. |
Complexitydifferent | Medium | Low | Low |
Timedifferent | 45-90 min | 30-120 min | 1-2 h |
Participantsdifferent | 2-5 | 2-6 | 3-10 |
Formatdifferent | Workshop + async | Workshop | Workshop |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | Observation Notes, Improvement Ideas | Architecture Canvas, Goals, Constraints, Quality Attributes |
Tagsno overlap | LeanProblem solvingCoachingOperations | LeanObservationProcessOperations | CanvasArchitectureAlignmentWorkshop |
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