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| Criterion |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Agile Ideal Days |  Architecture Architecture Communication Canvas |
|---|---|---|---|
Purposedifferent | 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. | The Architecture Communication Canvas plans architecture communication so the right people receive the right message. The method turns technical complexity into deliberate communication design. |
Complexitydifferent | High | Low | Medium |
Timedifferent | Several meetings plus preparation and analysis; total effort depends on scope | 15-60 min | 60-120 min |
Participantsdifferent | Evaluation team, architects, and relevant stakeholders | 2-9 | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | 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 | Communication Canvas, Stakeholder Messages, Architecture Communication Plan |
Tagsno overlap | ArchitectureQualityRiskTradeoffsStakeholders | EstimationEffortAgile | ArchitectureCommunicationStakeholdersCanvas |
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