Changes between Version 14 and Version 15 of Metadata


Ignore:
Timestamp:
Jul 12, 2009, 10:08:46 AM (15 years ago)
Author:
Wolfgang Schmidle
Comment:

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  • Metadata

    v14 v15  
    55
    66Dublin Core Metadata Initiative:
    7   * [http://dublincore.org/ homepage], [http://dublincore.org/documents/ overview], [http://dublincore.org/tools/ software] (mainly online tools), [http://dublincore.org/resources/faq/ FAQ]
     7  * [http://dublincore.org/ homepage], [http://dublincore.org/documents/ overview]
    88  * DCMI Metadata Terms: [http://dublincore.org/documents/dcmi-terms/ DCTERMS] (main document), [http://dublincore.org/usage/decisions/2008/dcterms-changes/ REVISIONS], [http://dublincore.org/documents/2008/01/14/domain-range/ DOMAINS]
    99  * DCMI Namespace Policy: [http://dublincore.org/documents/dcmi-namespace/ NAMESPACE]
    … …  
    1111  * DC and RDF: [http://dublincore.org/documents/dc-rdf/ DC-RDF], [http://dublincore.org/documents/dc-rdf-notes/ DC-RDF-NOTES]
    1212  * Guidelines for implementing Dublin Core in XML: [http://dublincore.org/documents/2003/04/02/dc-xml-guidelines/ 2003 version], may soon be superseded by: [http://dublincore.org/documents/2008/09/01/dc-ds-xml/ 2008 proposed recommendation], [http://dublincore.org/documents/2008/09/01/dc-ds-xml-notes/ additional notes] (there is also a [http://dublincore.org/documents/dc-xml/ 2006 working draft])
     13  * [http://dublincore.org/tools/ software] (mainly online tools), [http://dublincore.org/resources/faq/ FAQ]
    1314
    1415The [https://itgroup.mpiwg-berlin.mpg.de:8080/tracs/mpdl-project-content/browser/trunk/schema/echo/echo-metadata.rnc metadata module] in our Relax NG compact schema.
     16
     17Some questions:
     18
     191. The definitions
     20{{{
     21dc.language = element dcterms:language { element rdf:Description { element dcq:languageScheme { "ISO 639-2" }, rdf.value } }
     22dc.date = element dcterms:date { element rdf:Description { element dcq:dateScheme { "ISO 8601" }, rdf.value } }
     23}}}
     24seem to be obsolete. Especially dcq seems obsolete. I have replaced them by something which I believe is in accordance with Recommendation 7 in the [http://dublincore.org/documents/2003/04/02/dc-xml-guidelines/ 2003 XML Guidelines]:
     25{{{
     26dc.language = element dcterms:language { attribute xsi:type { "dcterms:ISO639-3" }, text }
     27dc.date = element dcterms:date { attribute xsi:type { "dcterms:W3CDTF" }, text }
     28}}}
     29(Maybe I should have left {{{<rdf:value>}}} instead of "text"? But then, consequently ALL "text" in {{{dcterms}}} definitions should in fact be {{{<rdf:value>}}}.)
     30
     31However, information is sparse. The syntax encoding schemes {{{dcterms:W3CDTF}}} and {{{dcterms:ISO639-3}}} do exist according to [http://dublincore.org/documents/dcmi-terms/ DCTERMS], but an up-to-date opionion about how to use syntax encoding schemes is difficult to obtain. The proposed recommendation [http://dublincore.org/documents/2008/09/01/dc-ds-xml/ 2008 XML Guidelines] uses {{{dcterm:date}}} only like this:
     32{{{
     33<dcterms:date>2005-05-05</dcterms:date>
     34<dcterms:date rdf:datatype="http://www.w3.org/2001/XMLSchema#date">2005-05-05</dcterms:date>
     35}}}
     36Any suggestions?
     37
     382. Should we rename our {{{<metadata>}}} element? In all examples it is {{{<ref:Description>}}}. However, in most examples it seems to mean the repository version of the metadata, not the version in the xml file itself.
     39
     403. Do we need something like {{{<foaf:Person>}}} for creators, contributors, etc.? (I guess not; it doesn't seem have any particular advantage.)