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| Criterion |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Delivery Communication Plan |  Facilitation Alignment Mapping |
|---|---|---|---|
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 many people need to be informed in parallel and messages would otherwise arrive unevenly or too late, a Communication Plan orders communication reliably. Channels, audiences, and cadences interlock so important information doesn't get lost. | When several people work toward one goal but hold different mental maps, Alignment Mapping makes the discrepancies visible. It arranges goals, assumptions, and priorities so shared direction becomes verifiable. |
Complexitydifferent | High | Low | Medium |
Timedifferent | Several meetings plus preparation and analysis; total effort depends on scope | 45-90 min | 1-2 h |
Participantsdifferent | Evaluation team, architects, and relevant stakeholders | 2-6 | 4-12 |
Formatdifferent | Workshop + async | Workshop + async | 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 | Communication Plan, Channel Matrix, Message Cadence | Alignment Map, Open Issues, Decision Questions |
Tags1 shared | ArchitectureQualityRiskTradeoffsStakeholders | CommunicationStakeholdersDeliveryPlanning | AlignmentStakeholdersStrategyFacilitation |
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