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| Criterion |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Facilitation Expectation Mapping |  Facilitation Power Interest Grid |
|---|---|---|---|
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 roles, interfaces, or projects fail because of differing expectations, Expectation Mapping surfaces these differences. It shows what each side takes for granted and where the pictures diverge. | When many stakeholders compete for attention at once, the Power Interest Grid sorts them by influence and stake. It turns individual contributions into a visible selection. The result is captured as a Power Interest Grid and a stakeholder-specific strategy. |
Complexitydifferent | High | Low | Low |
Timedifferent | Several meetings plus preparation and analysis; total effort depends on scope | 45-90 min | 30-60 min |
Participantsdifferent | Evaluation team, architects, and relevant stakeholders | 3-12 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop |
Outputdifferent | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Expectation Map, Alignment Notes, Agreements | Power Interest Grid, Strategy per Stakeholder |
Tags1 shared | ArchitectureQualityRiskTradeoffsStakeholders | AlignmentStakeholdersTeam | StakeholdersFacilitationAlignmentPlanning |
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