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| Criterion |  Systems Thinking Stock and Flow Diagram |  Systems Thinking Causal Loop Diagram |  Architecture ATAM (Architecture Tradeoff Analysis Method) |
|---|---|---|---|
Purposedifferent | A Stock and Flow Diagram shows how stocks, inflows, and outflows shape a system over time. It is especially suited when growth, delays, or capacity limits determine the dynamics. | 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. | 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. |
Complexitydifferent | High | Medium | High |
Timedifferent | 2-6 h | 1-3 h | Several meetings plus preparation and analysis; total effort depends on scope |
Participantsdifferent | 1-6 | 2-8 | Evaluation team, architects, and relevant stakeholders |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Stock and Flow Model, Dynamics Notes, Simulation Hypotheses | Causal Loop Diagram, Feedback Notes, Leverage Points | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations |
Tagsno overlap | DynamicsSimulationFeedbackSystems thinking | FeedbackSystems thinkingCausalityDynamics | ArchitectureQualityRiskTradeoffsStakeholders |
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