Abstract: A business process analysis system provides a platform for process modeling and simulation in a collaborative environment. The system includes a series of client stations connected to servers over a network. The platform is suitable for operating on an internal, local enterprise network or a group of systems across multiple locations, or in a cloud-based or other environment. The servers maintain business process models being created or edited at one or more clients. The servers also run simulations of the models. A collaboration server controls changes to the business process model. A history of revisions is maintained in a content management system. An interactive work site provides relevant information regarding the business process models, such as a listing of the latest changes to the model, user-submitted commentary, discussions, and additional files relating to the model.