Namespace Name

Namespace Name is a group of related elements that each have a unique name or identifier. There are several different types of namespaces, and each one has a specific syntax used to define the corresponding elements. Namespaces are used in many areas of computing, such as domain names, file paths, and XML documents.

Namespace Prefix

A namespace prefix can be written for an element or descendant element for which a namespace has been declared, or for an attribute defined therein.

Namespace Qualifier

Qualifies the object identity in terms of its parent namespace. In the more specific case of XML namespaces, namespace qualifiers are called namespace prefixes. Helps in distinguishing different objects that have the same unqualified identity.

NENA 02-503, NENA Technical Information Document on XML Namespaces