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