- Arnaud Le Hors, W3C
- Robert S. Sutor, IBM Research (for DOM Level 1)
Several of the following term definitions have been borrowed or
modified from similar definitions in other W3C or standards
documents. See the links within the definitions for more
- An ancestor node of any node A is any node above A in a
tree model of a document, where "above" means "toward the
- A child is an immediate descendant node of a node.
- A descendant node of any node A is any node below A in a
tree model of a document, where "below" means "away from the
- document element
- There is only one document element in a
This element node is a child of the
Document node. See
XML Documents in XML [XML 1.0].
- There is an ordering, document order, defined on all the
nodes in the document corresponding to the order in which the first
character of the XML representation of each node occurs in the XML
representation of the document after expansion of general entities.
Thus, the document
element node will be the first node. Element nodes occur
before their children. Thus, document order orders element nodes in
order of the occurrence of their start-tag in the XML (after
expansion of entities). The attribute nodes of an element occur
after the element and before its children. The relative order of
attribute nodes is implementation-dependent.
- DOM Level
- The term "DOM Level 0" refers to a mix (not formally specified)
of HTML document functionalities offered by Netscape Navigator
version 3.0 and Microsoft Internet Explorer version 3.0. In some
cases, attributes or methods have been included for reasons of
backward compatibility with "DOM Level 0".
- Two nodes are siblings if they have the same parent
- The description given to various information items (for
example, attribute values of various types, but not including the
StringType CDATA) after having been processed by the XML processor.
The process includes stripping leading and trailing white space,
and replacing multiple space characters by one. See the definition
of tokenized type.
- A document is well-formed if it is tag valid and
entities are limited to single elements (i.e., single
- XML name
- See XML
name in the XML specification ([XML 1.0]).