Date:         Mon, 12 Nov 2001 18:56:54 +0100
Reply-To:     "Z39.50 Next-Generation Initiative" <[log in to unmask]>
Sender:       "Z39.50 Next-Generation Initiative" <[log in to unmask]>
From:         Poul Henrik Jørgensen <[log in to unmask]>
Subject:      ZNG DC XML Format
Comments: To: "Z39.50 Next-Generation Initiative" <[log in to unmask]>
Content-Type: text/plain; charset="iso-8859-1"

Hi Theo,

The DCMI has published the following specification for representing DC data
in XML: http://dublincore.org/documents/2001/04/11/dcmes-xml/

An example lifted from the above specification is reproduced below:

<?xml version="1.0"?>
<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
         xmlns:dc ="http://purl.org/dc/elements/1.1/">
 <rdf:Description rdf:about="http://dublincore.org/">
   <dc:title>Dublin Core Metadata Initiative - Home Page</dc:title>
   <dc:description>The Dublin Core Metadata Initiative Web
site.</dc:description>
   <dc:date>1998-10-10</dc:date>
   <dc:format>text/html</dc:format>
   <dc:language>en</dc:language>
   <dc:contributor>The Dublin Core Metadata Initiative</dc:contributor>
   <dc:contributor xml:lang="fr">L'Initiative de métadonnées du Dublin
Core</dc:contributor>
   <dc:contributor xml:lang="de">der Dublin-Core
Metadata-Diskussionen</dc:contributor>
 </rdf:Description>
</rdf:RDF>

This appears similar to your proposed method.

The above format is used by the ONE-2 Profile compliant Z39.50 Servers.

Since XML Namespace prefixes are local to XML documents, do we need to agree
on standard prefix assignments, e.g. dc and zng?

Best regards,
Poul Henrik


-----Original Message-----
From: Theo van Veen [mailto:[log in to unmask]]
Sent: 12. november 2001 17:54
To: [log in to unmask]
Subject: record container


I have seen now different ways of expressing a dublin core record. I would
like to agree on the exact format with respect to dublin core before there
will be more implementations that possible will diverge.

The way we do it is shown below:

<zng:recordData>
   <rdf:Description xmlns:dc="http://purl.org/dc/elements/1.1/"
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns">
      <dc:creator>Author,  X.Y.</dc:creator> 
      <dc:title>This is an example of a title</dc:title> 
      <dc:date>2001</dc:date> 
   </rdf:Description>
</zng:recordData>

Instead of <rdf:Description xmlns:dc=......> I have seen <dc xmlns=....>.
Ralph uses <dc:dc xmlns=....>.

Can we agree on how to do this in an early stage? And how about prefixes: do
we use dc: and zng: as prefix? 

Theo