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| Criterion |  Architecture Architecture Decision Record |  Agile NoEstimates |  Decision Making PERT Estimation |  Architecture arc42 |
|---|---|---|---|---|
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. | 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. | On complex initiatives, a plain average tends to understate just how uncertain the outcome really is. It separates options, evaluation criteria, and open risks. The result is captured as a PERT Estimate, Expected Value, and Risk 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. |
Complexitydifferent | Low | Medium | Medium | Low |
Timedifferent | 15-45 min | laufend | 15-45 min | 1-2 Tage |
Participantsdifferent | 1-3 | 2-12 | 1-8 | 1-4 |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | ADR File, Decision Log, Rationale | Throughput Data, Flow Forecast, Slicing Rules | PERT Estimate, Expected Value, Risk Notes | Architecture Document, Context View, Runtime View, Deployment View |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | EstimationForecastingFlow | EstimationUncertaintyRisk | ArchitectureDocumentationCommunication |