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| Criterion |  Facilitation Expectation Mapping |  Architecture Architecture Decision Record |  Architecture arc42 |
|---|---|---|---|
Purposedifferent | When roles, interfaces, or projects fail because of differing expectations, Expectation Mapping surfaces these differences. It shows what each side takes for granted and where the pictures diverge. | 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. | arc42 structures architecture knowledge so teams can document system, decisions, and risks consistently. The template builds a living understanding of the architecture instead of scattered notes. |
Complexitysame | Low | Low | Low |
Timedifferent | 45-90 min | 15-45 min | 1-2 Tage |
Participantsdifferent | 3-12 | 1-3 | 1-4 |
Formatdifferent | Workshop | Async | Workshop + async |
Outputdifferent | Expectation Map, Alignment Notes, Agreements | ADR File, Decision Log, Rationale | Architecture Document, Context View, Runtime View, Deployment View |
Tagsno overlap | AlignmentStakeholdersTeam | ArchitectureRationaleDocumentationGovernance | ArchitectureDocumentationCommunication |
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