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| Criterion |  Architecture C4 Model |  Facilitation World Café |  Facilitation Open Space Technology |  Architecture arc42 |
|---|---|---|---|---|
Purposedifferent | The C4 Model makes a system legible across several resolution levels, from context down to code. It suits situations where different audiences need to understand the same architecture from different altitudes. | 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. | 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. |
Complexitydifferent | Low | Medium | High | Low |
Timedifferent | 1-4 h | 60-180 min | 0.5-2 Tage | 1-2 Tage |
Participantsdifferent | 1-5 | 12-100+ | 20-500+ | 1-4 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop + async |
Outputdifferent | Context Diagram, Container Diagram, Component Diagram | Table Notes, Emergent Themes, Shared Questions | Session Marketplace, Proceedings, Action Topics | Architecture Document, Context View, Runtime View, Deployment View |
Tagsno overlap | ArchitectureCommunicationVisualization | FacilitationDialogueLarge groupSensemaking | FacilitationLarge groupAutonomy | ArchitectureDocumentationCommunication |