Glossary

This glossary uses the following references:

• Contrast with refers to a term that has an opposite or different meaning.

• Compare with refers to a term that has a similar meaning.

• See also refers to terms that have a related meaning.

Words containing these references are highlighted.

attribute

A property of an information object.

DTD

Document Type Definition. A DTD is used to define the legal building blocks of an XML document. A DTD can be declared within an XML document or referenced externally.

LDAP

Lightweight Directory Access Protocol.

schema

An outline defining the structure, content, and semantics of an XML document.

SOAP

Simple Object Access Protocol.

SQL-XML

An XML representation of SQL data.

XML

Extensible Markup Language, a markup language standardized by W3C.

UDDI

Universal Description Discovery and Integration.

URI

A Uniform Resource Identifier. A URI is a string of characters that identify an Internet Resource. The most common URI is the Uniform Resource Locator (URL), which identifies an Internet address. A less common URI is the Universal Resource Name (URN).

WSDL

Web Services Description Language.

XML schema

Extensible Markup Language.

XPath

XML Path Language.

XQL

XML Query Language. XQL was a precursor of XQuery.