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| Criterion |  Operations A3 Problem Solving |  Domain Modeling Bounded Context Canvas |  Operations ALPEN Method |  Operations Gemba Walk |
|---|---|---|---|---|
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 a business context is still loosely outlined, it shapes language, responsibility, and integration space. It clarifies what belongs together and where a boundary needs to hold. | With an overloaded day full of too many tasks, a realistic picture of the day emerges. The method connects estimating, deciding, and buffer thinking so planning fits available energy and time. | 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 | Low | Low |
Timedifferent | 45-90 min | 1-3 h | 10-20 min daily | 30-120 min |
Participantsdifferent | 2-5 | 3-8 | 1 | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Async | Workshop |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | Context Canvas, Glossary, Integration Notes | Daily Plan, Time Estimates, Review Notes | Observation Notes, Improvement Ideas |
Tagsno overlap | LeanProblem solvingCoachingOperations | Domain-Driven DesignBoundariesModeling | PlanningTime managementProductivityOperations | LeanObservationProcessOperations |