Modelica-based modeling and simulation environment. Modelica is an object-oriented, declarative, multi-domain modeling language for component-oriented modeling of complex systems; there is a freely available System Dynamics library.
System dynamics is widespread mainly in economics, management, biology and environmental areas. The SystemDynamics Modelica library paves the way for integrated treatment of socio-technical systems, having both continuous-time and discrete-event aspects. In addition, it is thought valuable to be able to use the System Dynamics modeling concept, which supports the "top-down" modeling approach, together with the inherent "bottom-up" approach of physical object-oriented modeling.
