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| Criterion |  Architecture arc42 |  Facilitation Consensus Workshop |  Facilitation 3-Circle Venn Diagram |  Architecture Architecture Decision Record |
|---|---|---|---|---|
Purposedifferent | 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. | When a group needs a solid decision without outvoting individual factions, a Consensus Workshop creates a negotiable common ground. It makes agreement, reservations, and open tensions discussable at the same time. | When three perspectives matter at the same time, a Three-Circle Venn Diagram shows the overlaps and remainders precisely. It makes visible where shared effect arises and where only a partial perspective applies. | 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 | Low | Medium | Low | Low |
Timedifferent | 1-2 Tage | 1-3 h | 15-45 min | 15-45 min |
Participantsdifferent | 1-4 | 5-30 | 2-8 | 1-3 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Async |
Outputdifferent | Architecture Document, Context View, Runtime View, Deployment View | Consensus Clusters, Theme Titles, Priority Areas | Venn Diagram, Overlap Notes, Differentiators | ADR File, Decision Log, Rationale |
Tagsno overlap | ArchitectureDocumentationCommunication | FacilitationConsensusWorkshopAlignment | ComparisonFacilitationAlignment | ArchitectureRationaleDocumentationGovernance |