Requirement-driven service composition approach for Internet of things
Liu Zhi-du · Jisuanji yingyong yanjiu · 2013
According to the desiderata of users,this paper proposed the service combination approach based on ontology to combine atomic services dynamically and form service set.Firstly,it introduced the multi-view modeling of IOT.It described interactions between service and physical entity by interaction model.It depicted service attributes and behaviors in physical world by function model.It represented expectations state conversions caused by service with state model.It expanded the OWL description for physical objects service.Secondly,it adopted QoS multidimensional model for the modeling of requirement.Service matching and combination employed semantic approach.The appropriate composition service that satisfied the user's constrains could be selected from service set on the basis of QoS set.Finally,it gave a study case and simulation experiment to verify the correctness and effectiveness of the proposed method.