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| Criterion |  Decision Making Delphi Method |  Facilitation Decision Jam |  Architecture Architecture Decision Record |  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. | When a decision is stuck, Decision Jam loosens the knot through structured separation of problem, idea, and selection. The format creates movement without jumping prematurely at the first seemingly elegant answer. | 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. | 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 | Low | Low |
Timedifferent | 1-4 Wochen | 60-90 min | 15-45 min | 1-2 Tage |
Participantsdifferent | 6-30 Experten | 4-10 | 1-3 | 1-4 |
Formatdifferent | Async | Workshop | Async | Workshop + async |
Outputdifferent | Expert Forecast, Consensus Range, Assumption Notes | Problem Cluster, Prioritized Challenge, Experiment | ADR File, Decision Log, Rationale | Architecture Document, Context View, Runtime View, Deployment View |
Tagsno overlap | ForecastingExpertsDecisionStrategy | FacilitationDecisionProblem solvingWorkshop | ArchitectureRationaleDocumentationGovernance | ArchitectureDocumentationCommunication |