Prefixes and Equivalence of NSs /1

Instead of URIs for denoting a namespace in document, one uses prefixes for these NS mapped to the respective URI using xmlns:prefix="URI".

Element- or attribute-name containing colon (:) is denoted as Qualified Name, QName.

Two NS are equal iff their URIs are one-to-one-character the same (in UNICODE).

NS do not apply to text nodes.