re:root

The document element (here re:root) is the very first (and essentially a virtual) element of the XML tree. Document element is the formal name for the start element and is a type of XML node; it's more commonly known as the 'root element' or 'root node'.

The root element can have other XML node types besides the document element, e.g. comments and processing instructions.

XML Tag

<re:root xmlns:re='http://reality.dataactive.com'>
...
</re:root>

DTD

<!ELEMENT re:root ANY>
<!ATTLIST re:root xmlns:re CDATA #FIXED "http://reality.dataactive.com">

Reference examples

010_010 ,010_010 , 010_015

Children

All

Attributes

xmlns

A xmlns attribute is a namespace value, this a “way of defining each element type and attribute name in an XML document unmistakably (through associations with a specific URIs) so that two or more XML structures may be used in that document without creating a conflict”.

For more information on namspaces see:

Official namespace specification http://www.w3.org/TR/REC-xml-names/

Namespace FAQ http://www.rpbourret.com/xml/NamespacesFAQ.htm