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| Criterion |  Systems Thinking Stock and Flow Diagram |  Architecture Architecture Decision Record |
|---|---|---|
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. | An ADR permanently records an architecture decision with context, trade-offs, and consequence. It creates continuity for later changes because the decision path stays traceable. |
Complexitydifferent | High | Low |
Timedifferent | 2-6 h | 15-45 min |
Participantsdifferent | 1-6 | 1-3 |
Formatdifferent | Workshop + async | Async |
Outputdifferent | Stock and Flow Model, Dynamics Notes, Simulation Hypotheses | ADR File, Decision Log, Rationale |
Tagsno overlap | DynamicsSimulationFeedbackSystems thinking | ArchitectureRationaleDocumentationGovernance |
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