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| Criterion |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Systems Thinking Soft Systems Methodology |  Operations Change Analysis |
|---|---|---|---|
Purposedifferent | 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. | Soft Systems Methodology helps explore unclear or politically charged problems systematically. Instead of forcing a quick answer, the method builds a shared understanding of perspectives and room for action. | 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. |
Complexitydifferent | High | High | Medium |
Timedifferent | Several meetings plus preparation and analysis; total effort depends on scope | 0.5-3 Tage | 45-120 min |
Participantsdifferent | Evaluation team, architects, and relevant stakeholders | 5-15 | 2-6 |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Rich Picture, Root Definitions, Conceptual Models, Change Agenda | Change Matrix, Cause Hypotheses, Validation Questions, Action List |
Tagsno overlap | ArchitectureQualityRiskTradeoffsStakeholders | Soft systemsComplexitySensemakingSystems thinking | ChangeRoot causeTroubleshootingComparison |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
