Salve, devo esportare i dati di alcuni libri da un database in un documento xml Dublin Core. Ho visto un po' di esempi sul sito dello schema ed ho elaborato questo esempio-tipo qua:
codice:
<?xml version="1.0"?>

<metadata
  xmlns:dc="http://purl.org/dc/elements/1.1/"

  <dc:title>
    UKOLN
  </dc:title>
  <dc:subject>
    national centre, network information support, library
    community, awareness, research, information services,public
    library networking, bibliographic management, distributed
    library systems, metadata, resource discovery,
    conferences,lectures, workshops
  </dc:subject>
  <dc:description>
    UKOLN is a national focus of expertise in digital information
    management. It provides policy, research and awareness services
    to the UK library, information and cultural heritage communities.
    UKOLN is based at the University of Bath.
  </dc:description>
  <dc:type>PDF Document</dc:type>
  <dc:coverage></dc:coverage>
  <dc:creator>Autore</dc:creator>
  <dc:publisher>
    UKOLN, University of Bath
  </dc:publisher>
  <dc:contributor>Collaboratore</dc:contributor>
  <dc:rights></dc:rights>
  <dc:date>DataPrefettura</dc:Date>
  <dc:format>application/pdf</dc:format>
  <dc:identifier>
    http://www.ukoln.ac.uk/
  </dc:identifier>
  <dc:language>Lingua</dc:language>
</metadata>
</xml>
Pensate che sia un documento dublin core valido? Se non lo è cosa devo aggiungere e/o modificare?
Grazie per l'aiuto.