How does Xml handle metadata ?

There are no predefined elements in XML, because it is an architecture, not an application, so it is not part of XML'S job to specify how or if authors should or shouldnt implement metadata. You're therefore free to use any suitable method.
A temporary name or number assigned to a file, font or other object. For example, an operating system may assign a sequential number to each file that it opens as a way of identifying it.
On account of XML gives you characterize your own markup languages, you could make full utilization of the developed hypertext offers from claiming XML (see the inquiry with respect to Links) should store or connection should metadata clinched alongside At whatever design (eg utilizing ISO 11179, Similarly as An subject Maps distributed Subject, for dublin Core, Warwick Framework, alternately for asset portrayal skeleton (RDF), alternately considerably stage for web substance determination (PICS)).