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| Criterion |  Decision Making Delphi Method |  Architecture Architecture Decision Record |  Decision Making Cynefin Workshop |  Architecture arc42 |
|---|---|---|---|---|
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. | 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. | When problems are unclear, chaotic, or only seemingly familiar, standard recipes fall short. A Cynefin Workshop sorts situations by the nature of their problem and connects them with matching action logic. | 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 | High | Low | Medium | Low |
Timedifferent | 1-4 Wochen | 15-45 min | 60-180 min | 1-2 Tage |
Participantsdifferent | 6-30 Experten | 1-3 | 4-20 | 1-4 |
Formatdifferent | Async | Async | Workshop | Workshop + async |
Outputdifferent | Expert Forecast, Consensus Range, Assumption Notes | ADR File, Decision Log, Rationale | Cynefin Map, Domain-specific Actions, Sensemaking Notes | Architecture Document, Context View, Runtime View, Deployment View |
Tagsno overlap | ForecastingExpertsDecisionStrategy | ArchitectureRationaleDocumentationGovernance | ComplexitySensemakingDecision | ArchitectureDocumentationCommunication |