(1) Space reserved by a file system to contain the names of its objects.
(2) In XML and XQuery, a uniform resource identifier (URI) that provides a unique name to associate with the element, attribute, and type definitions in an XML schema or with the names of elements, attributes, types, functions, and errors in XQuery expressions.
(3) A part of the model in which the names may be defined and used. Within a namespace, each name has a unique meaning.
(4) A category used to group similar types of identifiers. See also namespace scope.
(5) The scope within which a Common Information Model (CIM) schema applies.
(6) The set of all possible names composed of characters from the binder's character set, within which no duplicates are allowed. All external symbols have an assigned name space during binder processing and within program objects.
(7) A logical container in which all the names are unique. The unique identifier for an artifact is composed of the namespace and the local name of the artifact.