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Selected:ATAM (Architecture Tradeoff Analysis Method)Causal Loop DiagramFailure Mode and Effects AnalysisCurrent Reality Tree
| Criterion |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Systems Thinking Causal Loop Diagram |  Operations Failure Mode and Effects Analysis |  Systems Thinking Current Reality Tree |
|---|---|---|---|---|
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 Causal Loop Diagram makes feedback, reinforcement, and balance in a system legible. It uncovers side effects and self-reinforcement that stay hidden in linear explanations. | For a process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability. | A Current Reality Tree condenses many symptoms into a few causal chains. The method makes visible which core problems drive several negative effects at once. |
Complexitydifferent | High | Medium | High | High |
Timedifferent | Several meetings plus preparation and analysis; total effort depends on scope | 1-3 h | 2-6 h | 2-6 h |
Participantsdifferent | Evaluation team, architects, and relevant stakeholders | 2-8 | 3-10 | 3-8 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop |
Outputdifferent | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Causal Loop Diagram, Feedback Notes, Leverage Points | FMEA Table, Risk Priority, Mitigation Actions | Current Reality Tree, Core Problems, Intervention Ideas |
Tagsno overlap | ArchitectureQualityRiskTradeoffsStakeholders | FeedbackSystems thinkingCausalityDynamics | RiskQualityOperationsRoot cause | Systems thinkingRoot causeConstraintsCausality |