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| Criterion |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Product Strategy Impact Mapping |  Delivery Communication Plan |
|---|---|---|---|
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 a goal needs to be connected to several possible paths, it shows chains of impact instead of feature lists. It connects business goal, behavior change, and measures. | 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. |
Complexitydifferent | High | Medium | Low |
Timedifferent | Several meetings plus preparation and analysis; total effort depends on scope | 45-90 min | 45-90 min |
Participantsdifferent | Evaluation team, architects, and relevant stakeholders | 3-8 | 2-6 |
Formatdifferent | Workshop + async | Workshop | 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 | Impact Map, Outcome Hypotheses, Delivery Options | Communication Plan, Channel Matrix, Message Cadence |
Tagsno overlap | ArchitectureQualityRiskTradeoffsStakeholders | OutcomesStrategyBehaviorPlanning | CommunicationStakeholdersDeliveryPlanning |
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