> From [log in to unmask] Fri Jun 15 10:37 MET 2001
> MIME-Version: 1.0
> Date: Fri, 15 Jun 2001 10:34:16 +0200
> From: Thomas Baker <[log in to unmask]>
> Subject: DCMI Type
> To: [log in to unmask]
>
> Dear all,
>
> The DCMI Type vocabulary is described on a Web page at
> http://dublincore.org/documents/dcmi-type-vocabulary and as an XML/RDF
> schema at http://dublincore.org/2000/03/13/dctype (attached below).
>
> Note that the XML/RDF schema includes the additional class "Resource"
> of which the other types are all sub-classes.
This is an instance of disagreement between
the Schema in DCQual - which is under review - and the
Schema put up by the web-team.
The DCQual Schema proposal doesn't have that class. Instead it is saying:
'collection' is an rdfs:Class and it is a 'DCMIType'
(as the DCMI recommendation indicates)
There are other semantic differences as well.
rs
>
> Tom
>
> ------------
>
> <?xml version = "1.0"?>
>
> <!--
> RDF Schema declaration for the Dublin Core Resource Type Vocabulary
> 2001/03/08
> comments, etc. to webteam <[log in to unmask]>
> $Id: dctype,v 1.2 2001/03/28 22:41:29 matola Exp $
> -->
> <!DOCTYPE rdf:RDF [
> <!ENTITY rdfns 'http://www.w3.org/1999/02/22-rdf-syntax-ns#'>
> <!ENTITY rdfsns 'http://www.w3.org/2000/01/rdf-schema#'>
> <!ENTITY dcns 'http://purl.org/dc/elements/1.1/'>
> <!ENTITY dctypens 'http://dublincore.org/2000/07/11/dctype#'>
> <!ENTITY eorns 'http://dublincore.org/2000/03/13/eor#'>
> ]>
>
> <rdf:RDF xmlns:rdf="&rdfns;"
> xmlns:rdfs="&rdfsns;"
> xmlns:dc="&dcns;"
> xmlns:eor="&eorns;">
>
> <!-- Description of Schema -->
>
> <eor:Schema rdf:about="&dctypens;">
> <!-- dumb down rule... use rdf:value for a simple default name -->
> <rdf:value>The Dublin Core Type Vocabulary</rdf:value>
> <dc:title>The Dublin Core Type Vocabulary</dc:title>
> <dc:creator>The Dublin Core Metadata Initiative</dc:creator>
> <dc:description>The Dublin Core metadata vocabulary is a simple set
> of resource types intended to facilitate discovery of
> resources. </dc:description>
> <dc:language>English</dc:language>
> <dc:relation rdf:resource="http://dublincore.org/documents/dcmi-type-vocabulary/"/>
> <dc:date>2000-07-11</dc:date>
> </eor:Schema>
>
>
> <!-- Begin Type Declaration -->
>
> <!-- addition DC Vocabulary range declarations -->
>
> <rdf:Description rdf:about = "&dctypens;type">
> <rdfs:range rdf:resource = "Resource" />
> </rdf:Description>
>
> <!-- Class declaration -->
>
> <rdfs:Class rdf:about = "&dctypens;Resource">
> <rdfs:label>Resource</rdfs:label>
> <rdfs:comment>A general class of describable resources.</rdfs:comment>
> <rdfs:seeAlso rdf:resource = "http://www.loc.gov/marc/dc/typequalif-19991210.html" />
> <rdfs:subClassOf rdf:resource = "&rdfsns;Resource" />
> <rdfs:isDefinedBy rdf:resource = "&dctypens;" />
> </rdfs:Class>
>
> <rdfs:Class rdf:about = "&dctypens;Collection">
> <rdfs:label>Collection</rdfs:label>
> <rdfs:comment>A collection is an aggregation of items. The term collection
> means that the resource is described as a group; its parts may be
> separately described and navigated.</rdfs:comment>
> <rdfs:subClassOf rdf:resource = "&dctypens;Resource" />
> <rdfs:isDefinedBy rdf:resource = "&dctypens;" />
> </rdfs:Class>
>
> <rdfs:Class rdf:about = "&dctypens;Dataset">
> <rdfs:label>Dataset</rdfs:label>
> <rdfs:comment>A dataset is information encoded in a defined structure (for
> example, lists, tables, and databases), intended to be useful for direct
> machine processing. </rdfs:comment>
> <rdfs:subClassOf rdf:resource = "&dctypens;Resource" />
> <rdfs:isDefinedBy rdf:resource = "&dctypens;" />
> </rdfs:Class>
>
> <rdfs:Class rdf:about = "&dctypens;Event">
> <rdfs:label>Event</rdfs:label>
> <rdfs:comment>An event is a non-persistent, time-based
> occurrence. Metadata for an event provides descriptive information
> that is the basis for discovery of the purpose, location, duration,
> responsible agents, and links to related events and resources. The
> resource of type event may not be retrievable if the described
> instantiation has expired or is yet to occur. Examples - exhibition,
> web-cast, conference, workshop, open-day, performance, battle, trial,
> wedding, tea-party, conflagration. </rdfs:comment>
> <rdfs:subClassOf rdf:resource = "&dctypens;Resource" />
> <rdfs:isDefinedBy rdf:resource = "&dctypens;" />
> </rdfs:Class>
>
> <rdfs:Class rdf:about = "&dctypens;Image">
> <rdfs:label>Image</rdfs:label>
> <rdfs:comment>An image is a primarily symbolic visual representation
> other than text. For example - images and photographs of physical
> objects, paintings, prints, drawings, other images and graphics,
> animations and moving pictures, film, diagrams, maps, musical
> notation. Note that image may include both electronic and physical
> representations.</rdfs:comment>
> <rdfs:subClassOf rdf:resource = "&dctypens;Resource" />
> <rdfs:isDefinedBy rdf:resource = "&dctypens;" />
> </rdfs:Class>
>
> <rdfs:Class rdf:about = "&dctypens;InteractiveResource">
> <rdfs:label>Interactive Resource</rdfs:label>
> <rdfs:comment>An interactive resource is a resource which requires
> interaction from the user to be understood, executed, or
> experienced. For example - forms on web pages, applets, multimedia
> learning objects, chat services, virtual reality. </rdfs:comment>
> <rdfs:subClassOf rdf:resource = "&dctypens;Resource" />
> <rdfs:isDefinedBy rdf:resource = "&dctypens;" />
> </rdfs:Class>
>
> <rdfs:Class rdf:about = "&dctypens;Service">
> <rdfs:label>Service</rdfs:label>
> <rdfs:comment>A service is a system that provides one or more
> functions of value to the end-user. Examples include: a photocopying
> service, a banking service, an authentication service, interlibrary
> loans, a Z39.50 or Web server. </rdfs:comment>
> <rdfs:subClassOf rdf:resource = "&dctypens;Resource" />
> <rdfs:isDefinedBy rdf:resource = "&dctypens;" />
> </rdfs:Class>
>
> <rdfs:Class rdf:about = "&dctypens;Software">
> <rdfs:label>Software</rdfs:label>
> <rdfs:comment>a computer program in source or compiled form which
> may be available for installation non-transiently on another
> machine. For software which exists only to create an interactive
> environment, use interactive instead. </rdfs:comment>
> <rdfs:subClassOf rdf:resource = "&dctypens;Resource" />
> <rdfs:isDefinedBy rdf:resource = "&dctypens;" />
> </rdfs:Class>
>
> <rdfs:Class rdf:about = "&dctypens;Sound">
> <rdfs:label>Sound</rdfs:label>
> <rdfs:comment>A sound is a resource whose content is primarily intended to be
> rendered as audio. For example - a music playback file format, an audio
> compact disc, and recorded speech or sounds. </rdfs:comment>
> <rdfs:subClassOf rdf:resource = "&dctypens;Resource" />
> <rdfs:isDefinedBy rdf:resource = "&dctypens;" />
> </rdfs:Class>
>
> <rdfs:Class rdf:about = "&dctypens;Text">
> <rdfs:label>Text</rdfs:label>
> <rdfs:comment>A text is a resource whose content is primarily words
> for reading. For example - books, letters, dissertations, poems,
> newspapers, articles, archives of mailing lists. Note that facsimiles
> or images of texts are still of the genre text. </rdfs:comment>
> <rdfs:subClassOf rdf:resource = "&dctypens;Resource" />
> <rdfs:isDefinedBy rdf:resource = "&dctypens;" />
> </rdfs:Class>
>
> <!-- End: Type -->
>
> </rdf:RDF>
>
> _______________________________________________________________________________
> Dr. Thomas Baker [log in to unmask]
> GMD Library
> Schloss Birlinghoven +49-2241-14-2352
> 53754 Sankt Augustin, Germany fax +49-2241-14-2619
>
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