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| Criterion |  Agile Affinity Estimation |  Architecture ATAM (Architecture Tradeoff Analysis Method) |
|---|---|---|
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. | ATAM helps teams weigh architecture decisions when quality goals compete. The team considers business goals, stakeholder expectations, and technical decisions together. The evaluation shows which risks need further investigation. |
Complexitydifferent | Medium | High |
Timedifferent | 30-90 min | Several meetings plus preparation and analysis; total effort depends on scope |
Participantsdifferent | 3-12 | Evaluation team, architects, and relevant stakeholders |
Formatdifferent | Workshop | Workshop + async |
Outputdifferent | Affinity Size Map, Grouped Estimates, Unclear Items | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations |
Tagsno overlap | EstimationBacklogRelative sizing | ArchitectureQualityRiskTradeoffsStakeholders |
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