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| Criterion |  Architecture Architecture Decision Record |  Agile Affinity Estimation |
|---|---|---|
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 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. |
Complexitydifferent | Low | Medium |
Timedifferent | 15-45 min | 30-90 min |
Participantsdifferent | 1-3 | 3-12 |
Formatdifferent | Async | Workshop |
Outputdifferent | ADR File, Decision Log, Rationale | Affinity Size Map, Grouped Estimates, Unclear Items |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | EstimationBacklogRelative sizing |
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