XML Schema Definition (XSD)
by Vijay Mukhi, Shruti Gupta, Sonal Mukhi
The XML Schema specifies the properties of a resource, while the XML file stipulates a set of values for these properties. The primary utility of the XML Schema lies in its ability to concede generous amount of autonomy to the programmer to define the rules of data validity; and thereafter, to hand over the responsibility of data validation to the XML validator. This liberates the programmer from the mundane drudgery of the task of data validation.
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by Norman Walsh - O'Reilly Media
This introduction to XML presents the Extensible Markup Language at a reasonably technical level for anyone interested in learning more about structured documents. In addition to XML 1.0 Specification, this text outlines related XML specifications.
by Steve Holzner - Sams
The book offers real-world XML examples and covers basic syntax, XML document structure, document types, the benefits of XML Schema, formatting using CSS, working with XHTML, XForms, building XML into database or Web Service applications with SOAP.
by DJ Adams - O'Reilly Media
This book offers developers a chance to learn and understand the Jabber technology and protocol from an implementer's point of view. Detailed information of each part of the Jabber protocol is introduced, explained, and discussed.
by Ronald Bourret
This paper gives a high-level overview of how to use XML with databases. It describes how the differences between data-centric and document-centric documents affect their usage with databases and how XML is commonly used with relational databases.