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Selected:Stock and Flow DiagramATAM (Architecture Tradeoff Analysis Method)LASR (Lightweight Approach for Software Reviews)Causal Loop Diagram
| Criterion |  Systems Thinking Stock and Flow Diagram |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Architecture LASR (Lightweight Approach for Software Reviews) |  Systems Thinking Causal Loop Diagram |
|---|---|---|---|---|
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. | 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. | LASR helps development teams identify where their software falls short of important quality goals and which improvements to consider. A small group with existing system knowledge can make an initial assessment and investigate open questions in more detail. | 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. |
Complexitydifferent | High | High | Medium | Medium |
Timedifferent | 2-6 h | Several meetings plus preparation and analysis; total effort depends on scope | 3–4 h for initial assessment; preparation and deeper analysis additional | 1-3 h |
Participantsdifferent | 1-6 | Evaluation team, architects, and relevant stakeholders | 1 or a small team; particularly suitable for 3–4 people | 2-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Stock and Flow Model, Dynamics Notes, Simulation Hypotheses | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Lean Mission Statement describing the software’s purpose, Prioritized quality goals and evaluation criteria, Risks and estimated gaps against quality goals, More closely examined findings and open checks | Causal Loop Diagram, Feedback Notes, Leverage Points |
Tagsno overlap | DynamicsSimulationFeedbackSystems thinking | ArchitectureQualityRiskTradeoffsStakeholders | ArchitectureQualityRiskAssessmentLean | FeedbackSystems thinkingCausalityDynamics |