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| Criterion |  Decision Making Three-Point Estimation |  Decision Making RAPID |  Architecture Architecture Decision Record |  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. | In complex management decisions, clarity is often missing about who recommends, who agrees, and who makes the decision. RAPID creates this assignment and stabilizes decisions across several levels. | 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 | Medium | Medium | Low | Low |
Timedifferent | 10-30 min je Item | 45-90 min | 15-45 min | 1-2 Tage |
Participantsdifferent | 1-8 | 3-12 | 1-3 | 1-4 |
Formatdifferent | Workshop + async | Workshop + async | Async | Workshop + async |
Outputdifferent | Three-Point Estimate, Risk Range, Assumption Notes | RAPID Role Map, Recommendation, Decision Log | ADR File, Decision Log, Rationale | Architecture Document, Context View, Runtime View, Deployment View |
Tagsno overlap | EstimationUncertaintyForecasting | DecisionRolesGovernance | ArchitectureRationaleDocumentationGovernance | ArchitectureDocumentationCommunication |