This book envisages the intelligent combination of Web services and the Semantic Web. The semantic web will create an environment where computers are able to understand the meaning of information and automatically process it. Web services support application-to-application Internet communication, allowing applications at different network locations to function as if they were part of a single, large software system. The book brings together contributions from research scientists in both industry and academia to study, explore and understand the phases that compose the lifecycle of Semantic Web processes. Detailing, in short, a technological revolution that will ultimately lead to a new breed of web-based applications.