Resource Modeling in Business Process Simulation.

Business Process (BP) models address the specification of the flow of events and activities, along with the dependencies of activities on resources. BP models are often analyzed by using simulation-based approaches. This paper focuses on resource modeling for BP modeling and simulation, by first introducing the most important concepts and discussing how resources are modeled in the standard BP modeling notation (i.e., BPMN) and in the area of Discrete Event Simulation. Then, the paper presents two newer BP modeling and simulation approaches, namely the Object Event Modeling and Simulation with the Discrete Event Process Modeling Notation (DPMN) based on the JavaScript-based simulation framework OESjs, and Performability-enabled BPMN (PyBPMN), with the Java-based simulation framework eBPMN. A simple but effective case study dealing with a pizza service process is used to illustrate the main features of the presented approaches.