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| Criterion |  Architecture Architecture Decision Record |  Decision Making Wideband Delphi |  Decision Making Delphi Method |
|---|---|---|---|
Purposedifferent | 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. | A single opinion rarely holds up for planning when the future is genuinely uncertain. It separates options, evaluation criteria, and open risks. The result is captured as an Estimate Range, Assumption Log, and Expert Consensus Notes. | 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. |
Complexitydifferent | Low | High | High |
Timedifferent | 15-45 min | 1-4 h or multiple rounds | 1-4 Wochen |
Participantsdifferent | 1-3 | 4-12 Experten | 6-30 Experten |
Formatdifferent | Async | Workshop + async | Async |
Outputdifferent | ADR File, Decision Log, Rationale | Estimate Range, Assumption Log, Expert Consensus Notes | Expert Forecast, Consensus Range, Assumption Notes |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | EstimationExpertsForecasting | ForecastingExpertsDecisionStrategy |
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