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| Criterion |  Delivery MoSCoW |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Decision Making Risk Matrix |  Decision Making Assumption Surfacing |
|---|---|---|---|---|
Purposedifferent | When a release carries too many demands and priorities are only ever negotiated, MoSCoW creates clear boundaries for the next cut. Must, Should, Could, and Won't make commitment, room for maneuver, and trade-off logic visible to everyone involved. | 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 project faces many possible disruptions, it quickly becomes unclear which risks deserve attention first. It separates options, evaluation criteria, and open risks. The result is captured as a Risk Matrix and a Top Risk List. | Plans often contain assumptions that were never openly stated and remain dangerous precisely because of that. Assumption Surfacing makes these silent premises visible and prioritizes which of them carry the initiative or could sink it. |
Complexitydifferent | Low | High | Low | Low |
Timedifferent | 30-90 min | Several meetings plus preparation and analysis; total effort depends on scope | 30-60 min | 45-90 min |
Participantsdifferent | 3-12 | Evaluation team, architects, and relevant stakeholders | 3-10 | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Prioritized Backlog, Release Scope, Tradeoff Notes | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Risk Matrix, Top Risk List | Assumption List, Critical Assumptions, Learning Plan |
Tagsno overlap | PrioritizationScopeDecision | ArchitectureQualityRiskTradeoffsStakeholders | RiskDecisionPrioritizationAssessment | AssumptionsRiskDecisionDiscovery |