Using Service Patterns to Achieve Web Service Composition

In this paper, we present a pattern-based approach to support Web service compositions. The concept of service patterns is designed to overcome the challenges posed by the lack of systematic ways of reusing previous experience in service interactions. A service pattern represents a class of concrete services or a generalized workflow. Hence, service patterns form an abstraction layer over concrete services and workflows. Although the concept of service patterns is independent of implementations, we formulate a way of using OWL-S mechanisms to implement service patterns. In addition, two functional operators are defined over service patterns to provide functional capabilities to operate on service patterns and facilitate automated service compositions.