Social Context Enabled Description Model for Web Services

In pervasive environments, efficient automatic service discovery and composition depends on the information of service context, however, existing service description models lack of the description of social relationships. This paper analyzed the parameters of the social context of services from three aspects, i.e. the service requester, service provider and relationships between them, and proposed a semantic Web service description model which supports the description of social context. In order to extend the OWL-S metamodel to the S-OWL-S(SCA-enabled OWL-S) metamodel, Service Social Context Attribute (SCA) was added into the OWL-S. Finally, a case study is used to validate the S-OWL-S in service discovery.