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| Criterion |  Product Strategy RICE Scoring |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Architecture C4 Model |  Delivery Communication Plan |
|---|---|---|---|---|
Purposedifferent | When many initiatives compete for the same resources, it brings reach, impact, confidence, and effort into one shared ranking. It makes prioritization economically connectable. | 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. | The C4 Model makes a system legible across several resolution levels, from context down to code. It suits situations where different audiences need to understand the same architecture from different altitudes. | 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 | Medium | High | Low | Low |
Timedifferent | 60-90 min | Several meetings plus preparation and analysis; total effort depends on scope | 1-4 h | 45-90 min |
Participantsdifferent | 2-10 | Evaluation team, architects, and relevant stakeholders | 1-5 | 2-6 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | RICE Scores, Ranked List, Assumption Log | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Context Diagram, Container Diagram, Component Diagram | Communication Plan, Channel Matrix, Message Cadence |
Tagsno overlap | PrioritizationScoringRoadmapTradeoffs | ArchitectureQualityRiskTradeoffsStakeholders | ArchitectureCommunicationVisualization | CommunicationStakeholdersDeliveryPlanning |