XML document

A file that contains text with interspersed descriptions, called "tags." All XML files are XML documents and vice versa. The XML document is often organized in a hierarchy with an "open" tag at the beginning of the file, a "close" tag at the end and all the text elements in between. Each text element has an open and close tag as well, and all tags begin with the less-than () character. See XML.

XML Tag Example

This example shows one definition from the XML feed for this encyclopedia. All the tags within the open and close "definition" tags are in a prescribed hierarchy. Note that all close tags have a slash (/) after the beginning less-than (