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| Criterion |  Facilitation Open Space Technology |  Architecture arc42 |  Facilitation World Café |  Architecture Architecture Decision Record |
|---|---|---|---|---|
Purposedifferent | When a complex topic does not yet have a fitting agenda, Open Space Technology hands topic ownership back to the participants. The format suits questions that only move forward when real interest determines the order. | 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 to connect many viewpoints in a short time, World Café creates a calm alternation between closeness and rotation. It sets thinking in motion without forcing the conversation into full-plenary rigidity. | 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 | High | Low | Medium | Low |
Timedifferent | 0.5-2 Tage | 1-2 Tage | 60-180 min | 15-45 min |
Participantsdifferent | 20-500+ | 1-4 | 12-100+ | 1-3 |
Formatdifferent | Workshop | Workshop + async | Workshop | Async |
Outputdifferent | Session Marketplace, Proceedings, Action Topics | Architecture Document, Context View, Runtime View, Deployment View | Table Notes, Emergent Themes, Shared Questions | ADR File, Decision Log, Rationale |
Tagsno overlap | FacilitationLarge groupAutonomy | ArchitectureDocumentationCommunication | FacilitationDialogueLarge groupSensemaking | ArchitectureRationaleDocumentationGovernance |