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| Criterion |  Operations A3 Problem Solving |  Domain Modeling Domain Context Map |  Architecture Architecture Decision Record |
|---|---|---|---|
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 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. | An ADR permanently records an architecture decision with context, trade-offs, and consequence. It creates continuity for later changes because the decision path stays traceable. |
Complexitydifferent | Medium | Medium | Low |
Timedifferent | 45-90 min | 1-3 h | 15-45 min |
Participantsdifferent | 2-5 | 3-10 | 1-3 |
Formatdifferent | Workshop + async | Workshop | Async |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | Domain Context Map, Boundary Notes, Ownership Map | ADR File, Decision Log, Rationale |
Tagsno overlap | LeanProblem solvingCoachingOperations | Domain-Driven DesignContextBoundaries | ArchitectureRationaleDocumentationGovernance |
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