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| Criterion |  Agile Affinity Estimation |  Architecture Architecture Decision Record |  Decision Making Decision Rights Mapping |  Architecture arc42 |
|---|---|---|---|---|
Purposedifferent | When many tasks need to be classified quickly, it sorts them by perceived effort and similarity. It reduces the effort of fine-grained estimation for large volumes. | 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. | In organizations with many stakeholders, it often blurs who actually decides and who is merely consulted. It separates options, evaluation criteria, and open risks. The result is captured as a Decision Rights matrix and an agreement. | 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 | Medium | Low |
Timedifferent | 30-90 min | 15-45 min | 90-180 min | 1-2 Tage |
Participantsdifferent | 3-12 | 1-3 | 4-12 | 1-4 |
Formatdifferent | Workshop | Async | Workshop | Workshop + async |
Outputdifferent | Affinity Size Map, Grouped Estimates, Unclear Items | ADR File, Decision Log, Rationale | Decision Rights Matrix, Agreement | Architecture Document, Context View, Runtime View, Deployment View |
Tagsno overlap | EstimationBacklogRelative sizing | ArchitectureRationaleDocumentationGovernance | DecisionGovernanceAlignmentResponsibility | ArchitectureDocumentationCommunication |