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| Criterion |  Decision Making Delphi Method |  Decision Making Argument Mapping |  Architecture arc42 |  Architecture C4 Model |
|---|---|---|---|---|
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. | When statements, evidence, and counterarguments get mixed up, a debate quickly loses its structure. Argument Mapping breaks a thesis down into its reasoning and makes visible what it really rests on. | 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. | 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. |
Complexitydifferent | High | Medium | Low | Low |
Timedifferent | 1-4 Wochen | 1-3 h | 1-2 Tage | 1-4 h |
Participantsdifferent | 6-30 Experten | 1-8 | 1-4 | 1-5 |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Expert Forecast, Consensus Range, Assumption Notes | Argument Map, Evidence Gaps, Decision Rationale | Architecture Document, Context View, Runtime View, Deployment View | Context Diagram, Container Diagram, Component Diagram |
Tagsno overlap | ForecastingExpertsDecisionStrategy | SensemakingDecisionRationale | ArchitectureDocumentationCommunication | ArchitectureCommunicationVisualization |