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| Criterion |  Facilitation Dot Estimation |  Architecture ATAM (Architecture Tradeoff Analysis Method) |
|---|---|---|
Purposedifferent | When size or effort can only be estimated roughly, Dot Estimation condenses the group's experience into a quick range. It turns individual contributions into a visible selection. The result is captured as an Effort Heatmap, Risk Signals, and Discussion Targets. | 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 | Low | High |
Timedifferent | 5-20 min | Several meetings plus preparation and analysis; total effort depends on scope |
Participantsdifferent | 3-20 | Evaluation team, architects, and relevant stakeholders |
Formatdifferent | Workshop | Workshop + async |
Outputdifferent | Effort Heatmap, Risk Signals, Discussion Targets | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations |
Tags1 shared | EstimationEffortRisk | ArchitectureQualityRiskTradeoffsStakeholders |
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