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| Criterion |  Decision Making Risk Matrix |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Operations Change Analysis |  Decision Making Pareto Analysis |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | For a deviation after a change, the method isolates the influence of the altered condition. It narrows down which differences are relevant and which are just accompanying noise. | In many problem situations, effect is distributed unequally across many causes. A Pareto Analysis separates the few drivers with high leverage from the long remainder and focuses attention on what measurably moves the needle. |
Complexitydifferent | Low | High | Medium | Low |
Timedifferent | 30-60 min | Several meetings plus preparation and analysis; total effort depends on scope | 45-120 min | 30-60 min |
Participantsdifferent | 3-10 | Evaluation team, architects, and relevant stakeholders | 2-6 | 1-6 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Risk Matrix, Top Risk List | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Change Matrix, Cause Hypotheses, Validation Questions, Action List | Pareto Chart, Top Causes, Focus List |
Tagsno overlap | RiskDecisionPrioritizationAssessment | ArchitectureQualityRiskTradeoffsStakeholders | ChangeRoot causeTroubleshootingComparison | PrioritizationQualityFocusRoot cause |