The collaborative work of technology innovator H. Peter Alesso and research engineer Craig Smith, Developing Semantic Web Services presents the complete Language Pyramid of Web markup languages, including Resource Description Framework (RDF), Web Ontology Language (OWL) and OWL-Services (OWL-S), along with numerous examples and software demos. Developing Semantic Web Services also describes the semantic software development tools including design and analysis methodologies, parsers, validators, editors, development environments, and inference engines. Additionally, the source code for the "Semantic Web Author", an Integrated Development Environment for Semantic Markup Languages, is included on an accompanying CD-ROM. Reflecting their expertise arising from their many years of extended research experience at the Lawrence Livermore National Laboratory, the co-authors have succeed in producing a seminal, essential, professional level instruction manual and reference work.