the Systems Biology Workbench (SBW), an open source framework connecting heterogeneous software applications. SBW is made up of two kinds of components:

Modules: These are the applications that a user would use. We have a wide collection of model editing, model simulation and model analysis tools.

Framework: The software framework that allows developers to cross programming language boundaries and connect application modules to form new applications.

Most of SBW modules are available from the website below.
http://sbml.org/