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| Criterion |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Systems Thinking Future Reality Tree |  Systems Thinking CATWOE 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. | A Future Reality Tree shows how desired actions are meant to lead to a better system state. The method checks whether a path of change holds together logically before time flows into implementation. | CATWOE structures a problem from six viewpoints and prevents too narrow a view of the situation. Different experiences of the system become comparably discussable this way. |
Complexitydifferent | High | High | Medium |
Timedifferent | Several meetings plus preparation and analysis; total effort depends on scope | 2-4 h | 45-90 min |
Participantsdifferent | Evaluation team, architects, and relevant stakeholders | 3-8 | 3-8 |
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 | Future Reality Tree, Negative Branches, Assumption List, Improved Injections | CATWOE Canvas, Root Definition, Stakeholder Perspectives, Constraints |
Tagsno overlap | ArchitectureQualityRiskTradeoffsStakeholders | Theory of ConstraintsSystems thinkingChange | Systems thinkingFramingStakeholders |
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