WOLFRAM SYSTEM MODELER
Connectors and partial models of the System Dynamics methodology
Auxiliary elements of the System Dynamics methodology
Functions of the System Dynamics methodology
Levels of the System Dynamics methodology
Rates of the System Dynamics methodology
Sources and sinks of the System Dynamics methodology
Introductory example codes of the System Dynamics methodology
The SystemDynamics library is designed as a graphical library for modeling mass and information flows in a continuous-time system using Prof. Jay Forrester's System Dynamics metaphor. Two separate and independent versions of this library had originally been created by Dr. Stefan Fabricius and by Prof. François Cellier and his students. These have now been merged into a single version that has furthermore been enhanced as well.
System Dynamics offers a fairly low-level graphical interface, not much different from a block diagram. The fact that continuous systems contain differential equations is hidden from the user by talking about levels, i.e., quantities that can accumulate (state variables), and rates, i.e., quantities that influence the accumulation and/or depletion of levels (state derivatives).
The System Dynamics modeling metaphor is widely used especially by researchers in the life sciences and social sciences.
Prof. Dr. François E. Cellier
Institut für Computational Science
ETH Zentrum CAB G82.1
Other Main Author:
Dr. Stefan Fabricius
Version 2.1, 2.2 update:
Wolfram MathCore AB
SE-583 30 Linköping
Copyright (C) 2002-2006, Stefan Fabricius.
Copyright (C) 2007-2013, François E. Cellier.
The SystemDynamics package is free software; it can be redistributed and/or modified under the terms of the Modelica license, see the license conditions and the accompanying disclaimer in the documentation of package Modelica in file "Modelica/package.mo".