What is the use of Namespaces in XML?
As XML does not predefine any set of tags/attribute names. Hence, it is quite possible that two totally different XML documents, defined by two totally different people/ companies, use the same tag name/attribute name. If an application needs to use (merge, process, etc.) above two XML documents together, this would cause confusion and we need a way to distinguish deterministically between tags with the same name. XML Namespaces are used for this purpose. Namespaces are defined using URI (Uniform Resource Identifier), and then associated with the element/attribute names. Namespaces are also used to “group” a logically related set of XML vocabulary.
