This chapter introduces an abstract Semantic Web Service architecture and introduces a life cycle of the relationship between a requester and a provider party and motivates the subsequent chapters for description, discovery, mediation and invocation of semantically annotated services in the web.
Summary. This chapter introduces the combination of the formerly described Web Services and Semantic Web technologies to Semantic Web Services. It outlines the vision and goals in the Semantic Web Services area and clarifies terminology in this field. It defines an abstract Semantic Web Service architecture and introduces a life cycle of the relationship between a requester and a provider party. This motivates the subsequent chapters for description, discovery, mediation and invocation of semantically annotated services in the web