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| Criterion |  Decision Making Delphi Method |  Architecture C4 Model |  Facilitation Consensus Workshop |  Architecture Software Architecture Canvas |
|---|---|---|---|---|
Purposedifferent | When knowledge is distributed and direct dominance should be avoided, groups quickly fall under the sway of their opinion leaders. The Delphi Method gathers assessments iteratively and gradually brings expert judgments closer together. | 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 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. | The Software Architecture Canvas reduces a system to the most important architecture decisions, constraints, and interfaces. It is useful when teams need a resilient overall picture quickly. |
Complexitydifferent | High | Low | Medium | Low |
Timedifferent | 1-4 Wochen | 1-4 h | 1-3 h | 1-2 h |
Participantsdifferent | 6-30 Experten | 1-5 | 5-30 | 3-10 |
Formatdifferent | Async | Workshop + async | Workshop | Workshop |
Outputdifferent | Expert Forecast, Consensus Range, Assumption Notes | Context Diagram, Container Diagram, Component Diagram | Consensus Clusters, Theme Titles, Priority Areas | Architecture Canvas, Goals, Constraints, Quality Attributes |
Tagsno overlap | ForecastingExpertsDecisionStrategy | ArchitectureCommunicationVisualization | FacilitationConsensusWorkshopAlignment | CanvasArchitectureAlignmentWorkshop |