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| Criterion |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Delivery Communication Plan |  Decision Making Trade-off Analysis |
|---|---|---|---|
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. | With limited resources, quality, speed, cost, and risk almost always compete with each other. Trade-off Analysis makes these tensions explicit and prevents decisions from producing hidden side effects. |
Complexitydifferent | High | Low | Medium |
Timedifferent | Several meetings plus preparation and analysis; total effort depends on scope | 45-90 min | 45-120 min |
Participantsdifferent | Evaluation team, architects, and relevant stakeholders | 2-6 | 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 | Communication Plan, Channel Matrix, Message Cadence | Trade-off Matrix, Criteria List, Decision Rationale, Accepted Downsides |
Tagsno overlap | ArchitectureQualityRiskTradeoffsStakeholders | CommunicationStakeholdersDeliveryPlanning | TradeoffsDecisionCriteriaOptions |
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