The emerging Second-Generation Web is based entirely on XML and related technologies. This new version of the Web introduces a multitude of novel concepts, terms, and acronyms. The goal of this dictionary is not just to define the meaning of new words but to develop a proper understanding of leading-edge Web technologies. It will be an invaluable reference for all Internet professionals and practitioners as well as students and ordinary Web users. Key topics XML syntax and core technologies All the major members of the XML family of technologies Numerous XML-based domain-specific languages Concept and architecture of the Semantic Web Key Semantic Web technologies Web services Features and Benefits Over 1,800 terms and definitions from a newly emerged area Over 200 illustrations to promote an understanding of the latest technologies Clear and accessible definitions and a unique writing style bridge the gap between definition and explanation Extensive cross-referencing of terms and a CD-ROM containing a fully searchable version of the dictionary