View methods side by side.
Choose up to four methods. Add them using the search and share the comparison by copying its link.
| Criterion |  Decision Making Three-Point Estimation |  Architecture Architecture Decision Record |  Decision Making Delphi Method |  Architecture arc42 |
|---|---|---|---|---|
Purposedifferent | A single estimate for effort, time, or risk often looks too smooth for the real uncertainty behind it. It separates options, evaluation criteria, and open risks. The result is captured as a Three-Point Estimate, Risk Range, and Assumption Notes. | 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 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. | 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 | Medium | Low | High | Low |
Timedifferent | 10-30 min je Item | 15-45 min | 1-4 Wochen | 1-2 Tage |
Participantsdifferent | 1-8 | 1-3 | 6-30 Experten | 1-4 |
Formatdifferent | Workshop + async | Async | Async | Workshop + async |
Outputdifferent | Three-Point Estimate, Risk Range, Assumption Notes | ADR File, Decision Log, Rationale | Expert Forecast, Consensus Range, Assumption Notes | Architecture Document, Context View, Runtime View, Deployment View |
Tagsno overlap | EstimationUncertaintyForecasting | ArchitectureRationaleDocumentationGovernance | ForecastingExpertsDecisionStrategy | ArchitectureDocumentationCommunication |