A semantic selection approach for composite Web services using OWL-DL and rules

Abstract

Most of the studies on the semiautomated composite Web services select concrete services based on the functional and/or non- functional attributes. However, they do not consider relationships between these attributes in the description of services or the user constraints. In this work, we propose an approach, which relates services to objects (resources) maintained by these services. The user can impose his constraints on the objects affected by the requested services. The affected object and their relationships are described in an intermediate ontology using OWL-DL and SWRL languages. Our selection strategy considers the relationships between services by looking for the dependent instances (conforming objects values) of affected objects that satisfy the user constraints and by combining the related services to get conforming composite services. The proposed selection approach of conforming composite services is implemented by using semantic Web tools and languages.