Demonstrating BPMN4CPS: Modeling anc verification of cyber-physical systems

Modeling is one of the most important topics in the area of Cyber-Physical Systems (CPS). By using BPMN4CPS [1], a designer can model CPS and their temporal properties as a set of collaborative and communicating processes organized in three parts: a cyber part, a controller part, and a physical part. However, the designer might specify a faulty combination of properties that can cause temporal violations. To address this problem and to check the consistency of the given properties, our tool automatically translates a CPS process model to a constraint satisfaction model. In this paper, we illustrate how to implement the BPMN4CPS approach and we demonstrate the capabilities of our tool.

I. Introduction

Cyber-physical systems are large distributed networks that integrate computational elements with physical processes to enable a precise control of the physical world. To do so, they include highly interconnected physical and cyber processes. Both processes operate under distributed control, and within uncontrolled and unexpected physical environments. Usually these business functionality have required properties. For example, the execution time is a strict requirement for CPS where a missed deadline may render the entire application incorrect. Therefore, temporal properties are the most important properties that need to be considered during the modeling of the behavior of such systems.