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| Criterion |  Agile NoEstimates |  Facilitation Dot Estimation |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Agile Ideal Days |
|---|---|---|---|---|
Purposedifferent | When estimating slows a team down more than it helps, it shifts the focus to flow, small slices, and real lead time. It sorts work by value, risk, and delivery ability. The result is captured as Throughput Data, Flow Forecast, and Slicing Rules. | 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. | When effort needs to be thought of as real working time, it offers a simple common denominator for comparison. It sorts work by value, risk, and delivery ability. The result is captured as Ideal Day Estimates, Assumption Notes, and Capacity Caveats. |
Complexitydifferent | Medium | Low | High | Low |
Timedifferent | laufend | 5-20 min | Several meetings plus preparation and analysis; total effort depends on scope | 15-60 min |
Participantsdifferent | 2-12 | 3-20 | Evaluation team, architects, and relevant stakeholders | 2-9 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Throughput Data, Flow Forecast, Slicing Rules | 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 | Ideal Day Estimates, Assumption Notes, Capacity Caveats |
Tagsno overlap | EstimationForecastingFlow | EstimationEffortRisk | ArchitectureQualityRiskTradeoffsStakeholders | EstimationEffortAgile |