Merge pull request #108 from w3c/simon-dcat-dataset-type

dcat:Dataset type

dcat/index.html

@@ -122,7 +122,13 @@ <h2>Vocabulary Overview</h2>
 </p>
 <p>Another important class in DCAT is <code><a href="#Class:_Catalog_record">dcat:CatalogRecord</a></code> which describes a dataset entry in the catalog. Notice that while dcat:Dataset represents the dataset itself, dcat:CatalogRecord represents the record that describes a dataset in the catalog. The use of the CatalogRecord is considered optional. It is used to capture provenance information about dataset entries in a catalog. If this distinction is not necessary then CatalogRecord can be safely ignored.</p>
 
-<figure><img alt="UML model of DCAT classes and properties" src="images/dcat-model.jpg">
+
+<p class="note">
+    In  <a href="https://www.w3.org/TR/vocab-dcat/">DCAT version 1.0</a> <a href="#class-dataset">dcat:Dataset</a> was a sub-class of <a href="http://purl.org/dc/dcmitype/Dataset">dctype:Dataset</a>, which is a member of the <a href="http://dublincore.org/documents/dcmi-terms/#section-7">DCMI Types vocabulary</a>.
+	This relationship has been removed in the revised DCAT vocabulary - see <a href="https://github.com/w3c/dxwg/issues/98">Issue #98</a>.
+</p>
+
+<figure><img alt="UML model of DCAT classes and properties" src="images/dcat-model-1.jpg">
 	<figcaption>
 		Overview of DCAT model
 	</figcaption>
@@ -186,7 +192,7 @@ <h3>Basic Example</h3>
 </section>
 
 <section id="classifying-datasets">
-<h3>Classifying datasets</h3>
+<h3>Classifying datasets thematically</h3>
 <p>The catalog classifies its datasets according to a set of domains represented by the relative URI&nbsp;:themes. SKOS can be used to describe the domains used:
 </p>
 <pre>  &nbsp;:catalog&nbsp;dcat:themeTaxonomy&nbsp;:themes&nbsp;.
@@ -211,6 +217,17 @@ <h3>Classifying datasets</h3>
 </pre>
 </section>
 
+<section id="classifying-dataset-types">
+<h3>Classifying dataset types</h3>
+
+<p>
+	The type or genre of a dataset may be indicated using the <a href="http://purl.org/dc/terms/type">dct:type</a> property:
+</p>
+
+<pre>  :dataset-001 dct:type	dctype:Text . </pre>
+
+</section>
+
 <section id="describing-catalog-records-metadata">
 <h3>Describing catalog records metadata</h3>
 <p>If the catalog publisher decides to keep metadata
@@ -597,6 +614,7 @@ <h3>Class: Dataset</h3>
 <a href="#Property:dataset_temporal">temporal coverage</a>,
 <a href="#Property:dataset_theme">theme</a>,
 <a href="#Property:dataset_title">title</a>,
+<a href="#Property:dataset_type">type</a>,
 <a href="#Property:dataset_update_date">update date</a>,
 </p>
 
@@ -620,12 +638,17 @@ <h3>Class: Dataset</h3>
   <thead><tr><th>RDF Class:</th><th><a href="http://www.w3.org/ns/dcat#Dataset">dcat:Dataset</a></th></tr></thead>
   <tbody>
     <tr><td class="prop">Definition:</td><td>A collection of data, published or curated by a single agent, and available for access or download in one or more formats.</td></tr>
-    <tr><td class="prop">Sub class of:</td><td><a href="http://purl.org/dc/dcmitype/Dataset">dctype:Dataset</a></td></tr>
+    <tr><td class="prop">Sub class of:</td><td> </td></tr>
     <tr><td class="prop">Usage note:</td><td>This class represents the actual dataset as published by the dataset publisher. In cases where a distinction between the actual dataset and its entry in the catalog is necessary (because metadata such as modification date and maintainer might differ), the <i><a href="#Class:_Catalog_record">catalog record</a></i> class can be used for the latter.</td></tr>
     <tr><td class="prop">See also:</td><td><a href="#Class:_Catalog_record" title="">Catalog record</a></td></tr>
   </tbody>
 </table>
 
+<p class="note">
+    In DCAT version 1.0 <a href="#class-dataset">dcat:Dataset</a> was a sub-class of <a href="http://purl.org/dc/dcmitype/Dataset">dctype:Dataset</a>, which is a member of the <a href="http://dublincore.org/documents/dcmi-terms/#section-7">DCMI Types vocabulary</a>.
+	This relationship has been removed in the revised DCAT vocabulary - see <a href="https://github.com/w3c/dxwg/issues/98">Issue #98</a>.
+</p>
+
 <section id="Property:dataset_title">
 <h4>Property: title</h4>
 <table class="definition">
@@ -775,6 +798,41 @@ <h4>Property: theme/category</h4>
 </table>
 </section>
 
+<section id="Property:dataset_type">
+<h4>Property: type/genre</h4>
+
+<p class="note">
+	Added in DCAT revision - see <a href="https://github.com/w3c/dxwg/issues/64">Issue #64</a>.
+</p>
+
+<table class="definition">
+  <thead><tr><th>RDF Property:</th><th><a href="http://purl.org/dc/terms/type">dct:type</a></th></tr></thead>
+  <tbody>
+    <tr><td class="prop">Definition:</td><td>The nature or genre of the resource.</td></tr>
+    <tr><td class="prop">Sub property of:</td><td><a href="http://purl.org/dc/elements/1.1/type">dc:type</a></td></tr>
+    <tr><td class="prop">Range:</td><td><a href="http://www.w3.org/2000/01/rdf-schema#Class">rdfs:Class</a></td></tr>
+    <tr><td class="prop">Usage note:</td><td>Recommended best practice is to use a value from a controlled vocabulary, such as:
+		<ol>
+			<li>
+				<a href="http://dublincore.org/documents/dcmi-terms/#section-7">DCMI Type vocabulary</a> [[DCTERMS]]
+			</li>
+			<li>
+				<a href="https://geo-ide.noaa.gov/wiki/index.php?title=ISO_19115_and_19115-2_CodeList_Dictionaries#MD_ScopeCode">ISO 19115 scope codes</a> [[iso-19115-1]]
+			</li>
+			<li>
+				<a href="https://schema.datacite.org/meta/kernel-4.1/include/datacite-resourceType-v4.1.xsd">Datacite resource types</a> [[datacite]]
+			</li>
+			<li>
+				<a href="http://gfzpublic.gfz-potsdam.de/pubman/item/escidoc:1397899">PARSE.Insight content-types</a> used by Re3data (see item 15 contentType)
+			</li>
+			<li>
+				<a href="http://id.loc.gov/vocabulary/marcgt.html">MARC intellectual resource types</a>
+			</li>
+		</ol> To describe the file format, physical medium, or dimensions of the resource, use the <a href="http://purl.org/dc/terms/format">dct:format element</a>.</td></tr>
+  </tbody>
+</table>
+</section>
+
 <section id="Property:dataset_keyword">
 <h4>Property: keyword/tag</h4>
 
@@ -792,7 +850,9 @@ <h4>Property: keyword/tag</h4>
 <h4>Property: contact point</h4>
 
 <p class="note">
-	In <a href="https://www.w3.org/TR/vocab-dcat/">DCAT version 1.0</a> the domain of dcat:contactPoint was dcat:Dataset, which limited use of this property in other contexts. The domain has been relaxed in this revision - see <a href="https://github.com/w3c/dxwg/issues/95">Issue #95</a>.
+	In <a href="https://www.w3.org/TR/vocab-dcat/">DCAT version 1.0</a> the domain of dcat:contactPoint was dcat:Dataset, 
+  which limited use of this property in other contexts. The domain has been relaxed in this revision - 
+  see <a href="https://github.com/w3c/dxwg/issues/95">Issue #95</a>.
 </p>
 
 <table class="definition">

dcat/rdf/dcat.ttl

@@ -210,7 +210,7 @@ dcat:Dataset
   rdfs:label "Σύνολο Δεδομένων"@el ;
   rdfs:label "قائمة بيانات"@ar ;
   rdfs:label "データセット"@ja ;
-  rdfs:subClassOf dctype:Dataset ;
+  skos:changeNote "2018-02 - subclass of dctype:Dataset removed because scope of dcat:Dataset includes several other types from the dctype vocabulary. " ;
 .
 dcat:Distribution
   rdf:type rdfs:Class ;