sd2 - SystemDynamics2 CAP4800/5805 SystemsSimulation...

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System Dynamics 2 CAP4800/5805 Systems Simulation
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What we covered last time What is System Dynamics Causal Loop Diagram Augmenting Causal CLD Loop dominance Labeling link polarity Determining loop polarity Exogenous items and delays
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System Dynamics Modeling Identify a problem Develop a dynamic hypothesis explaining the cause of the  problem  Create a basic causal graph Augment the causal graph with more information Convert the augmented causal graph to a System  Dynamics flow graph Translate a System Dynamics flow graph into DYNAMO  programs or equations Simulate the DYNAMO programs or equations
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Casual-loops Provide insight into a system's structure Often difficult to infer the behavior of a system from  its casual-loop representation Need to use computer simulation Simulation model: flow diagrams, equations,  simulation language  DYNAMO (DYNAmic Models):  Not a general-purpose language but special  purpose language to aid in building computer  models
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Flow Graph Symbols Level Rate Auxiliary Source/Sink Constant Flow arc Cause-and-effect arc
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Level: AKA stock, accumulation, or state variable A quantity that accumulates over time Change its value by accumulating or  integrating rates Change continuously over time even when  the rates are changing discontinuously
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Rate/Flow:  AKA flow, activity, movement
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This note was uploaded on 11/09/2011 for the course CAP 4800 taught by Professor Fishwick during the Fall '08 term at University of Florida.

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sd2 - SystemDynamics2 CAP4800/5805 SystemsSimulation...

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