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| Criterion |  Decision Making PERT Estimation |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Delivery RAID Log |
|---|---|---|---|
Purposedifferent | On complex initiatives, a plain average tends to understate just how uncertain the outcome really is. It separates options, evaluation criteria, and open risks. The result is captured as a PERT Estimate, Expected Value, and Risk Notes. | 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. | Helps clarify scope, sequence, and delivery flow in concrete terms. It makes work, boundaries, and order steerable. The result is captured as a RAID Log and a source for status reporting. |
Complexitydifferent | Medium | High | Low |
Timedifferent | 15-45 min | Several meetings plus preparation and analysis; total effort depends on scope | 30 min Setup, dann laufend |
Participantsdifferent | 1-8 | Evaluation team, architects, and relevant stakeholders | 1-3 maintaining, briefing for everyone |
Formatdifferent | Workshop + async | Workshop + async | Async |
Outputdifferent | PERT Estimate, Expected Value, Risk Notes | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | RAID Log, Status Report Source |
Tags1 shared | EstimationUncertaintyRisk | ArchitectureQualityRiskTradeoffsStakeholders | RiskTrackingStakeholdersGovernance |
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