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| Criterion |  Operations A3 Problem Solving |  Domain Modeling Context Map |  Domain Modeling Domain Context Map |  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 several contexts need to talk to each other, it makes their relationships and dependencies legible. It helps sort integration pressure and responsibilities across system boundaries. | When a domain model and its associated contexts need to be thought through together, it creates a shared overview. It connects the business view and organizational boundary into a readable whole. | 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 | 45-90 min | 1-3 h | 1-3 h | 30-120 min |
Participantsdifferent | 2-5 | 2-8 | 3-10 | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | Context Map, Integration Patterns, Boundary Notes | Domain Context Map, Boundary Notes, Ownership Map | Observation Notes, Improvement Ideas |
Tagsno overlap | LeanProblem solvingCoachingOperations | Domain-Driven DesignBoundariesStrategy | Domain-Driven DesignContextBoundaries | LeanObservationProcessOperations |