Compositional modeling of complex systems: contact center scenarios in OsMoSys

In this paper we present the application of a compositional modeling methodology to the re-engineering of Stochastic Well Formed net (SWN) models of a contact center. The modeling methodology is based on the definition of proper operators to connect submodels and it is supported by the OsMoSys modeling framework. The paper describes the implementation of a library of reusable SWN submodels of the contact center components and the definition of proper SWN connectors to easily develop models of different configurations of the system. We also describe the solving process of the composed models and its integration in the OsMoSys framework. Moreover, we discuss the advantages that this approach, based on the definition of classes and instances of submodels, can provide to the application of SWN to complex case studies.