A PT-SOA Model for CPS/IoT Services

Service computing technologies have been widely applied to many application domains to facilitate rapid system integration for desired goals. However, existing service models need to be enhanced for cyber-physical systems (CPS) and internet-of-things (IoT). In this paper, we develop an ontology model for the specification of services in CPS/IoT. First, we discuss the major differences in modeling software services and services in CPS/IoT. Then, we propose a novel PT-SOA (PT stands for physical things) model, which is mainly extended from OWL-S, to enhance existing service models for CPS/IoT systems. Finally, we show a case study system to illustrate how our model can facilitate proper service selection and composition.