On Mon, 3 Dec 2001, Geoff Mottram wrote:
> I read with interest the draft proposals "Expressing Simple Dublin Core
> in RDF/XML" and "Expressing Qualified Dublin Core in RDF/XML." I have
> the following comments:
>
> 1) Although these drafts are both excellent, I don't agree that RDF must
> be a requirement for XML documents containing Dublin Core data elements.
> It seems that a step has been skipped in the progression of Dublin Core
> to an XML implementation. RDF should be the next evolutionary step
> (after plain XML) for users who want to implement it. I may be wrong,
> but can't the RDF elements be added as a transform to a basic XML
> document since they only seem to describe Dublin Core and not the data
> in the document? Either way, I would like to see a separate
> recommendation or standard for how to construct plain Dublin Core XML
> documents.
See
Dublin Core in XML - Guidelines for implementors
http://www.ukoln.ac.uk/metadata/resources/dc/dc-xml-guidelines/
for some (currently unofficial) guidance in this area.
Andy.
> 2) The Dublin Core documentation seems to lack a description for how to
> create consistent, unique and legal XML element and attribute names from
> the Dublin Core element sets, qualifiers and application profiles. The
> recent Dublin Core Namespaces recommendation provides the following
> references to RDF documents:
>
> http://purl.org/dc/elements/1.1/
> http://purl.org/dc/terms/
> http://purl.org/dc/dcmitype/
>
> Human documentation would be helpful to describe the naming conventions
> being used. I gather that the core elements are now all lower case
> (title, creator, publisher, etc.) and the qualifiers can be a mixed bag
> (subject, SubjectScheme, LCSH, etc.). Are there any guidelines for how
> to capitalize Dublin Core element names and how to handle spaces and
> other illegal XML name characters. For example the Government
> Application profile includes element names such as "Date ¦ Acquired",
> "Date ¦ created" and "Language ¦ ISO639-2/B". If implementors devise
> their own naming conventions, Dublin Core will loose much of its
> strength as a method of exchanging metadata.
>
> Thank you.
>
> Sincerely,
>
> Geoff Mottram
> [log in to unmask]
>
Andy
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