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| Criterion |  Architecture Architecture Decision Record |  Decision Making Wideband Delphi |  Architecture arc42 |  Agile NoEstimates |
|---|---|---|---|---|
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. | 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. | When estimating slows a team down more than it helps, it shifts the focus to flow, small slices, and real lead time. It sorts work by value, risk, and delivery ability. The result is captured as Throughput Data, Flow Forecast, and Slicing Rules. |
Complexitydifferent | Low | High | Low | Medium |
Timedifferent | 15-45 min | 1-4 h or multiple rounds | 1-2 Tage | laufend |
Participantsdifferent | 1-3 | 4-12 Experten | 1-4 | 2-12 |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | ADR File, Decision Log, Rationale | Estimate Range, Assumption Log, Expert Consensus Notes | Architecture Document, Context View, Runtime View, Deployment View | Throughput Data, Flow Forecast, Slicing Rules |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | EstimationExpertsForecasting | ArchitectureDocumentationCommunication | EstimationForecastingFlow |