W3C XML Schema


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W3C XML Schema

An XML schema from the W3C. It is a superset of DTD, which is the standard SGML schema. Unlike DTD, W3C XML Schema is written in XML syntax, which although more verbose than DTD, can be created with any XML tools. Following is an example of W3C XML Schema statements that define first and last name, followed by tags in actual use within the document. The xsd prefix is defined elsewhere in the schema to refer to the XML namespace that is being used. For information, visit www.w3.org/XML/Schema. W3C XML Schema is informally known as "XSD." See XML schema, XML repository, DTD, XQuery and XML.


References in periodicals archive ?
W3C XML Schema is a "Schema of schema" and provides the guidelines to define "simple type" elements and "complex type" elements.
In Chapter 10, van der Vlist tries to explain how the W3C chose to implement namespace support in W3C XML Schema. Despite a very good explanation on this subject, it still remains a confusing matter, even in Chapter 11 because the concept is inherently difficult to explain, even though the author has done a good job.
Chapter 15 provides a very useful and concise reference to all of the elements that the W3C XML Schema uses to define components of XML Schema.