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Expand Up @@ -372,16 +372,28 @@ <h3>Basic Example</h3>
dct:temporal &lt;http://reference.data.gov.uk/id/quarter/2006-Q1&gt; ;
dcat:temporalResolution "P1D"^^xsd:duration ;
dct:spatial &lt;http://www.geonames.org/6695072&gt; ;
dcat:spatialResolutionInMeters "30.0"^^xsd:decimal ;
dct:publisher&nbsp;:finance-ministry&nbsp;;
dct:language &lt;http://id.loc.gov/vocabulary/iso639-1/en&gt; &nbsp;;
dct:accrualPeriodicity &lt;http://purl.org/linked-data/sdmx/2009/code#freq-W&gt; &nbsp;;
dcat:distribution&nbsp;:dataset-001-csv&nbsp;;
.
</pre>

<p>Five distinct temporal descriptors are shown for this dataset. The dataset publication and revision dates are shown in <a href="#Property:resource_release_date"><code>dct:issued</code></a> and <a href="#Property:resource_update_date"><code>dct:modified</code></a>. For the frequency of update of the dataset in <a href="#Property:dataset_frequency"><code>dct:accrualPeriodicity</code></a>, we use an instance from the <a href="http://www.w3.org/TR/vocab-data-cube/#dsd-cog">Content-Oriented Guidelines</a> developed as part
of the <abbr title="World Wide Web Consortium">W3C</abbr> Data Cube Vocabulary [[?VOCAB-DATA-CUBE]] efforts. The temporal coverage or extent is given in <a href="#Property:dataset_temporal"><code>dct:temporal</code></a> using an item from the Interval dataset (originally available from http://reference.data.gov.uk/id/interval) from data.gov.uk. The temporal resolution, which describes the minimum spacing of items within the dataset, is given in <a href="#Property:dataset_temporalresolution"><code>dcat:temporalResolution</code></a> using the standard datatype <code>xsd:duration</code>. </p>
<p>Additionally, the spatial coverage or extent is given <a href="#Property:dataset_spatial"><code>dct:spatial</code></a> using a URI from <a href="http://www.geonames.org/">Geonames</a>. A contact point is provided where comments and feedback about the dataset can be sent. Further details about the contact point, such as email address or telephone number, can be provided using vCard [[?VCARD-RDF]].</p>
<p>
Five distinct temporal descriptors are shown for this dataset.
The dataset publication and revision dates are shown in <a href="#Property:resource_release_date"><code>dct:issued</code></a> and <a href="#Property:resource_update_date"><code>dct:modified</code></a>.
For the frequency of update of the dataset in <a href="#Property:dataset_frequency"><code>dct:accrualPeriodicity</code></a>, we use an instance from the <a href="http://www.w3.org/TR/vocab-data-cube/#dsd-cog">Content-Oriented Guidelines</a> developed as part of the <abbr title="World Wide Web Consortium">W3C</abbr> Data Cube Vocabulary [[?VOCAB-DATA-CUBE]] efforts.
The temporal coverage or extent is given in <a href="#Property:dataset_temporal"><code>dct:temporal</code></a> using an item from the Interval dataset (originally available from http://reference.data.gov.uk/id/interval) from data.gov.uk.
The temporal resolution, which describes the minimum spacing of items within the dataset, is given in <a href="#Property:dataset_temporalresolution"><code>dcat:temporalResolution</code></a> using the standard datatype <code>xsd:duration</code>.
</p>
<p>
Additionally, the spatial coverage or extent is given <a href="#Property:dataset_spatial"><code>dct:spatial</code></a> using a URI from <a href="http://www.geonames.org/">Geonames</a>.
The spatial resolution, which describes the minimum spatial separation of items within the dataset, is given in <a href="#Property:dataset_spatialresolution"><code>dcat:spatialResolutionInMeters</code></a> using the standard datatype <code>xsd:decimal</code>.
</p>
<p>
A contact point is provided where comments and feedback about the dataset can be sent.
Further details about the contact point, such as email address or telephone number, can be provided using vCard [[?VCARD-RDF]].
</p>

<p>One representation of the dataset <code>:dataset-001-csv</code> can be downloaded as a 5Kb CSV file. This is
represented as an RDF resource of type <code>dcat:Distribution</code>.
Expand Down Expand Up @@ -676,6 +688,7 @@ <h3>Class: Catalog</h3>
<a href="#Property:dataset_distribution">distribution</a>,
<a href="#Property:dataset_frequency">frequency</a>,
<a href="#Property:dataset_spatial">spatial/geographic coverage</a>,
<a href="#Property:dataset_spatialresolution">spatial resolution</a>,
<a href="#Property:dataset_temporal">temporal coverage</a>,
<a href="#Property:dataset_temporalresolution">temporal resolution</a>,
<a href="#Property:dataset_wasgeneratedby">was generated by</a>
Expand Down Expand Up @@ -1440,6 +1453,7 @@ <h3>Class: Dataset</h3>
<a href="#Property:dataset_distribution">distribution</a>,
<a href="#Property:dataset_frequency">frequency</a>,
<a href="#Property:dataset_spatial">spatial/geographic coverage</a>,
<a href="#Property:dataset_spatialresolution">spatial resolution</a>,
<a href="#Property:dataset_temporal">temporal coverage</a>,
<a href="#Property:dataset_temporalresolution">temporal resolution</a>,
<a href="#Property:dataset_wasgeneratedby">was generated by</a>
Expand Down Expand Up @@ -1600,6 +1614,28 @@ <h4>Property: spatial/geographical coverage</h4>
</table>
</section>

<section id="Property:dataset_spatialresolution">
<h4>Property: spatial resolution</h4>

<table class="definition">
<thead><tr><th>RDF Property:</th><th><a href="http://www.w3.org/ns/dcat#spatialResolutionInMeters">dcat:spatialResolutionInMeters</a></th></tr></thead>
<tbody>
<tr><td class="prop">Definition:</td><td>minimum spatial separation resolvable in a dataset, measured in meters</td></tr>
<tr><td class="prop">Range:</td><td><a href="https://www.w3.org/TR/xmlschema11-2/#decimal"><code>xsd:decimal</code></a></td></tr>
<tr><td class="prop">Usage note:</td><td>If the dataset is an image or grid this should correspond to the spacing of items. For other kinds of spatial dataset, this property will usually indicate the smallest distance between items in the dataset.</td></tr>
</tbody>
</table>

<p>The range of this property is a decimal number representing a length in meters.
This is intended to provide a summary indication of the spatial resolution of the data as a single number.
More complex descriptions of various aspects of spatial precision, accuracy, resolution and other statistics can be provided using the Data Quality Vocabulary [[VOCAB-DQV]]. </p>

<p class="note">
New property in this context in this revision of DCAT.
</p>

</section>

<section id="Property:dataset_temporal">
<h4>Property: temporal coverage</h4>

Expand All @@ -1624,7 +1660,7 @@ <h4>Property: temporal resolution</h4>
<tbody>
<tr><td class="prop">Definition:</td><td>minimum time period resolvable in the dataset</td></tr>
<tr><td class="prop">Range:</td><td><a href="http://www.w3.org/TR/xmlschema-2/#duration"><code>xsd:duration</code></a></td></tr>
<tr><td class="prop">Usage note:</td><td>If the dataset is a time-series this should correspond to the spacing of items. For other kinds of dataset, this property will usually indicate the smallest time difference between items in the dataset. </td></tr>
<tr><td class="prop">Usage note:</td><td>If the dataset is a time-series this should correspond to the spacing of items in the series. For other kinds of dataset, this property will usually indicate the smallest time difference between items in the dataset. </td></tr>
</tbody>
</table>

Expand Down Expand Up @@ -1689,6 +1725,7 @@ <h3>Class: Distribution</h3>
<a href="#Property:distribution_packaging_format">packaging format</a>,
<a href="#Property:distribution_release_date">release date</a>,
<a href="#Property:distribution_rights">rights</a>,
<a href="#Property:distribution_spatialresolution">spatial resolution</a>,
<a href="#Property:distribution_temporalresolution">temporal resolution</a>,
<a href="#Property:distribution_title">title</a>,
<a href="#Property:distribution_update_date">update/modification date</a>,
Expand Down Expand Up @@ -1927,6 +1964,31 @@ <h4>Property: byteSize</h4>
</table>
</section>

<section id="Property:distribution_spatialresolution">
<h4>Property: spatial resolution</h4>

<table class="definition">
<thead><tr><th>RDF Property:</th><th><a href="http://www.w3.org/ns/dcat#spatialResolutionInMeters">dcat:spatialResolutionInMeters</a></th></tr></thead>
<tbody>
<tr><td class="prop">Definition:</td><td>The minimum spatial separation resolvable in a dataset distribution, measured in meters.</td></tr>
<tr><td class="prop">Range:</td><td><a href="https://www.w3.org/TR/xmlschema11-2/#decimal"><code>xsd:decimal</code></a></td></tr>
<tr><td class="prop">Usage note:</td><td>If the dataset is an image or grid this should correspond to the spacing of items. For other kinds of spatial dataset, this property will usually indicate the smallest distance between items in the dataset.</td></tr>
<tr><td class="prop">Usage note:</td><td>Alternative spatial resolutions might be provided as different dataset distributions</td></tr>
</tbody>
</table>

<p>The range of this property is a decimal number representing a length in meters.
This is intended to provide a summary indication of the spatial resolution of the data distribution as a single number.
More complex descriptions of various aspects of spatial precision, accuracy, resolution and other statistics changes be provided using the Data Quality Vocabulary [[VOCAB-DQV]]. </p>

<p class="note">
New property in this context in this revision of DCAT.
</p>
</tbody>
</table>

</section>

<section id="Property:distribution_temporalresolution">
<h4>Property: temporal resolution</h4>

Expand All @@ -1935,19 +1997,17 @@ <h4>Property: temporal resolution</h4>
<tbody>
<tr><td class="prop">Definition:</td><td>minimum time period resolvable in the dataset distribution</td></tr>
<tr><td class="prop">Range:</td><td><a href="http://www.w3.org/TR/xmlschema-2/#duration"><code>xsd:duration</code></a></td></tr>
<tr><td class="prop">Usage note:</td><td>If the dataset is a time-series this should correspond to the spacing of items. For other kinds of dataset, this property will usually indicate the smallest time difference between items in the dataset. </td></tr>
<tr><td class="prop">Usage note:</td><td>If the dataset is a time-series this should correspond to the spacing of items in the series. For other kinds of dataset, this property will usually indicate the smallest time difference between items in the dataset. </td></tr>
<tr><td class="prop">Usage note:</td><td>Alternative temporal resolutions might be provided in different dataset distributions</td></tr>
</tbody>
</table>

<p>This is intended to provide a summary indication of the temporal resolution of the data distribution as a single value.
More complex descriptions of various aspects of temporal precision, accuracy, resolution and other statistics can be provided using the Data Quality Vocabulary [[VOCAB-DQV]]. </p>

<p class="note">
New property in this context in this revision of DCAT.
</p>
</tbody>
</table>

<p>This is intended to provide a summary indication of the temporal resolution of the data distribution as a single value.
More complex descriptions of various aspects of temporal precision, accuracy, resolution and other statistics can be provided using the Data Quality Vocabulary [[VOCAB-DQV]]. </p>

</section>

Expand Down Expand Up @@ -4140,19 +4200,22 @@ <h3>Changes since the W3C Recommendation of 16 January 2014</h3>
<p>The document has undergone the following changes since the W3C Recommendation of 16 January 2014 [[?VOCAB-DCAT-20140116]]:</p>

<ul>
<li>
A new property <a href="#Property:dataset_spatialresolution">dcat:spatialResolutionInMeters</a> added to support description of the spatial resolution of datasets and distributions. See <a href="https://github.com/w3c/dxwg/issues/84">Issue #84</a>
</li>

<li>
A new property <a href="#Property:dataset_temporalresolution">dcat:temporalResolution</a> added to support description of the temporal resolution of datasets and distributions. See <a href="https://github.com/w3c/dxwg/issues/84">Issue #84</a>
</li>

<li>
<li>
Two new properties were added to specify packaged and compressed distributions: <a href="#Property:distribution_packaging_format">dcat:packageFormat</a> and <a href="#Property:distribution_compression_format">dcat:compressFormat</a>. See <a href="https://github.com/w3c/dxwg/issues/54">Issue #54</a>
</li>
<li>
Two new properties were added to specify packaged and compressed distributions: <a href="#Property:distribution_packaging_format">dcat:packageFormat</a> and <a href="#Property:distribution_compression_format">dcat:compressFormat</a>. See <a href="https://github.com/w3c/dxwg/issues/54">Issue #54</a>
</li>
<li>
A new section <a href="#qualified-relationship">Relationships between datasets and other resources</a> and new property <a href="#Property:resource_qualifiedRelation">dcat:qualifiedRelation</a> and class <a href="#Class:Relationship">dcat:Relationship</a> added to support relationships between datasets or other resources. See <a href="https://github.com/w3c/dxwg/issues/79">Issue #79</a>
</li>

<li>
<li>
A new section, <a href="#Dereferenceable-identifiers">Dereferenceable identifiers</a>, is added to describe how to indicate different types of identifiers by using [[!DCTERMS]] and [[?VOCAB-ADMS]] - see <a href="https://github.com/w3c/dxwg/issues/53">Issue #53</a> and <a href="https://github.com/w3c/dxwg/issues/68">Issue #68</a>.
</li>

Expand Down
15 changes: 14 additions & 1 deletion dcat/rdf/dcat.ttl
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Expand Up @@ -829,6 +829,19 @@ dcat:service
skos:changeNote "New property in this revision of DCAT" ;
skos:editorialNote "Status: Property accepted by DCAT revision team, but details of definition and constraints not yet resolved." ;
.
dcat:spatialResolutionInMeters
rdf:type owl:DatatypeProperty ;
rdfs:comment "minimum spatial separation resolvable in a dataset, measured in meters"@en-US ;
rdfs:comment "minimum spatial separation resolvable in a dataset, measured in metres"@en-GB ;
rdfs:label "spatial resolution (meters)"@en-US ;
rdfs:label "spatial resolution (metres)"@en-GB ;
rdfs:range xsd:decimal ;
skos:changeNote "New property in this revision of DCAT" ;
skos:editorialNote "Status: details of definition and constraints not yet resolved." ;
skos:editorialNote "Might appear in the description of a Dataset or a Distribution, so no domain is specified" ;
skos:scopeNote "If the dataset is an image or grid this should correspond to the spacing of items. For other kinds of spatial dataset, this property will usually indicate the smallest distance between items in the dataset. " ;
skos:scopeNote "Alternative spatial resolutions might be provided as different dataset distributions" ;
.
dcat:temporalResolution
rdf:type owl:DatatypeProperty ;
rdfs:comment "minimum time period resolvable in a dataset" ;
Expand All @@ -837,7 +850,7 @@ dcat:temporalResolution
skos:changeNote "New property in this revision of DCAT" ;
skos:editorialNote "Status: Property accepted by DCAT revision team, but details of definition and constraints not yet resolved." ;
skos:editorialNote "Might appear in the description of a Dataset or a Distribution, so no domain is specified" ;
skos:scopeNote "If the dataset is a time-series this should correspond to the spacing of items. For other kinds of dataset, this property will usually indicate the smallest time difference between items in the dataset. " ;
skos:scopeNote "If the dataset is a time-series this should correspond to the spacing of items in the series. For other kinds of dataset, this property will usually indicate the smallest time difference between items in the dataset. " ;
skos:scopeNote "Alternative temporal resolutions might be provided as different dataset distributions" ;
.
dcat:theme
Expand Down

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