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| Criterion |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Operations Accountability Ladder |  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. | With defensive reactions to problems, the method shifts the view from justification to ownership. It makes visible which reaction stage a person or team is currently stuck on. | 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 | Low | Low |
Timedifferent | Several meetings plus preparation and analysis; total effort depends on scope | 20-45 min | 45-90 min |
Participantsdifferent | Evaluation team, architects, and relevant stakeholders | 1-8 | 2-6 |
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 | Ownership Reflection, Action Commitment, Coaching Notes | Communication Plan, Channel Matrix, Message Cadence |
Tagsno overlap | ArchitectureQualityRiskTradeoffsStakeholders | ResponsibilityLeadershipTeam | CommunicationStakeholdersDeliveryPlanning |
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