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Selected:Communication PlanSAAM (Software Architecture Analysis Method)Architecture Decision RecordATAM (Architecture Tradeoff Analysis Method)
| Criterion |  Delivery Communication Plan |  Architecture SAAM (Software Architecture Analysis Method) |  Architecture Architecture Decision Record |  Architecture ATAM (Architecture Tradeoff Analysis Method) |
|---|---|---|---|---|
Purposedifferent | 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. | SAAM helps teams judge an architecture’s suitability for selected tasks and changes. It is particularly useful for examining modifiability and comparing architecture alternatives with clear reasoning. | An ADR permanently records an architecture decision with context, trade-offs, and consequence. It creates continuity for later changes because the decision path stays traceable. | 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. |
Complexitydifferent | Low | High | Low | High |
Timedifferent | 45-90 min | Preparation, scenario analysis, and findings review; effort depends on scope | 15-45 min | Several meetings plus preparation and analysis; total effort depends on scope |
Participantsdifferent | 2-6 | Architecture experts and stakeholders for scenarios and weighting | 1-3 | Evaluation team, architects, and relevant stakeholders |
Formatdifferent | Workshop + async | Workshop + async | Async | Workshop + async |
Outputdifferent | Communication Plan, Channel Matrix, Message Cadence | Domain functions mapped to components and connections, Quality attributes and evaluation criteria, Typical tasks and their effects on the architecture, Reasoned evaluation or comparison of alternatives | ADR File, Decision Log, Rationale | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations |
Tagsno overlap | CommunicationStakeholdersDeliveryPlanning | ArchitectureChangeAnalysisComparisonQuality | ArchitectureRationaleDocumentationGovernance | ArchitectureQualityRiskTradeoffsStakeholders |