Dom document object model a specification that

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DOM (document object model)A specification that defines the structure of a document as a collection of objects and how the documentcan be accessed and manipulated. A document object model is an API (application programminginterface), which describes how programs actually interpret the structure and contents of a document.document prologA section at the beginning of a document that declares the document to be XML, and specifies theversion of XML it complies to (for example,<?xml version="1.0"?>). Additional information about thedocument can be declared, often the document type declaration. The document prolog precedes thedocument element or root element, which contains all the content of the document. See alsodocument, document type declaration, XML declaration.
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Learning XMLpage 257Glossary - Ddocument treeEvery XML document can be represented in a special structural form called a tree. It's tree-like becauseit originates from one point (the root) and branches out into leaves. Each point in the tree where abranching occurs is called a node. A tree consists of a root node, many branch nodes, and a smatteringof leaf nodes. Strangely, most document trees are drawn upside-down, with the root on top.Document trees can be divided into smaller trees, in that any node can be considered the root of its ownsubtree. This fact is important in understanding XML transformations using XSLT, which effectively chopsa tree into smaller and smaller subtrees, then assembles a result tree in reverse fashion. See alsodocument, node tree.document type declarationTheDOCTYPEsection of the document prolog. This section declares the structure that the document mustconform to. It can be used to specify a DTD by providing its public identifier and location by URI to listan internal subset of entity declarations used in the document. See alsodocument, DTD.DTD (document type definition)A set of declarations that defines the names of the elements and their attributes and specifies rules fortheir combination and sequence. See alsodocument, document type declaration.
Learning XMLpage 258Glossary - EeditorTo author text on a computer, one must use an editor, a software program that packages yourkeystrokes into files. Some editors are fancier than others. The simplest is vi, an old but still kicking Unixeditor. Emacs is a nice editor with lots of configuration potential, but a somewhat steep learning curveand no style presentation. Both of these editors show you the text and markup together, which canmake authoring difficult for those who aren't used to seeing all the tags in the content. See alsodocument, markup.elementA defined piece of an XML document. XML elements are denoted by start and end tags, and can containdata and other elements in a specified hierarchy. See alsoattribute, content, markup.

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The Bible, The American, markup language, markup languages, XML Schema
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