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<title>Data on the Web Best Practices: Dataset Usage Vocabulary</title>
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<body>
<section id="abstract">
<p>Datasets published on the Web are accessed and experienced by consumers
in a variety of ways, but little information about these experiences is
typically conveyed. Dataset publishers many times lack feedback from
consumers about how datasets are used. Consumers lack an effective way
to discuss experiences with fellow collaborators and explore referencing
material citing the dataset. Datasets as defined by DCAT are a
collection of data, published or curated by a single agent, and
available for access or download in one or more formats. The Dataset
Usage Vocabulary (DUV) is used to describe consumer experiences,
citations, and feedback about the dataset from the human perspective. </p>
<p>By specifying a number of foundational concepts used to collect dataset
consumer feedback, experiences, and cite references associated with a
dataset, APIs can be written to support collaboration across the Web by
structurally publishing consumer opinions and experiences, and provide a
means for data consumers and producers advertise and search for
published open dataset usage. </p>
</section>
<section id="sotd">
<p>This is the fourth iteration of the vocabulary, developed following
extensive consultation among and outside the working group who now
regard it as nearing completion. Comment and feedback is sought before
the next iteration which is likely to be the final version for the
foreseeable future.</p>
</section>
<section id="intro" class="informative">
<h2> Introduction</h2>
<p> The Data on the Web Best Practices working group [[DWBP]] identified
Best Practices [[BP]] for citing published data, conveying feedback
between consumers and publishers, and providing descriptive metadata
that provides insights to the consumer about how published data can be
used. The data usage vocabulary is viewed as an extension to the
Data Catalog (DCAT) vocabulary version 1.0 [[VOCAB-DCAT]] to fill
current existing gaps required to adequately cite, describe usage, and
convey feedback on published datasets and
distributions. <br>
<br>
Broadly speaking the vocabulary is domain-independent and open. As
an open vocabulary the DUV encourages publishers to add descriptive
metadata tailored to meet each publisher’s domain-specific needs.
When publishers and consumers exchange, combine, and reuse published
data, the DUV metadata allows usage information to be clearly identified
and cross-referenced across datasets. Because the DUV heavily
relies on vocabulary reuse descriptive metadata in many cases can be
leveraged from original vocabulary. <br>
<br>
The DUV is modular consisting of four sub-models (DCAT, citation, usage,
feedback) to support different practitioner needs. As
a result the DUV can be used in part (DCAT+citation, DCAT+usage,
DCAT+feedback) or in its entirety depending on the practitioner’s
requirements. The DCAT+usage submodel is loosely defined to either
indicate usage from an informational perspective, or if descriptive
metadata is required, the usage submodel can indicate to find this
information. Additionally, the citation submodel describing basic
electronic citation elements, bibliographic references to dataset, and
citation rationale can be independently used.<br>
</p>
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<section id="namespaces-1">
<h2> Namespaces</h2>
<p>The namespace for DUV is <code>http://www.w3.org/ns/duv#</code>. It
should be noted that DUV makes extensive use of terms from other
vocabularies which rely their own sets of namespaces. A full set of
namespaces and prefixes used in this document is shown in the table
below.</p>
<table id="namespaces">
<thead>
<tr>
<th>Prefix</th>
<th>Namespace</th>
</tr>
</thead>
<tbody>
<tr>
<td>biro</td>
<td>http://purl.org/spar/biro/</td>
</tr>
<tr>
<td>cito</td>
<td>http://purl.org/spar/cito/</td>
</tr>
<tr>
<td>dcat</td>
<td>http://www.w3.org/ns/dcat#</td>
</tr>
<tr>
<td>dct</td>
<td>http://purl.org/dc/terms/</td>
</tr>
<tr>
<td>disco</td>
<td>http://rdf-vocabulary.ddialliance.org/discovery#</td>
</tr>
<tr>
<td>dqv</td>
<td>http://www.w3.org/ns/dqv#</td>
</tr>
<tr>
<td>duv</td>
<td>http://www.w3.org/ns/duv#</td>
</tr>
<tr>
<td>fabio</td>
<td>http://purl.org/spar/fabio/</td>
</tr>
<tr>
<td>foaf</td>
<td>http://xmlns.com/foaf/0.1/</td>
</tr>
<tr>
<td>frbr</td>
<td>http://purl.org/vocab/frbr/core#</td>
</tr>
<tr>
<td>oa</td>
<td>http://www.w3.org/ns/oa#</td>
</tr>
<tr>
<td>pav</td>
<td>
<meta charset="utf-8">
http://purl.org/pav/</td>
</tr>
<tr>
<td>rdf</td>
<td>http://www.w3.org/1999/02/22-rdf-syntax-ns#</td>
</tr>
<tr>
<td>rdfs</td>
<td>http://www.w3.org/2000/01/rdf-schema#</td>
</tr>
<tr>
<td>skos</td>
<td>http://www.w3.org/2004/02/skos/core#</td>
</tr>
<tr>
<td>vann</td>
<td>http://purl.org/vocab/vann/</td>
</tr>
<tr>
<td>xsd</td>
<td>http://www.w3.org/2001/XMLSchema#</td>
</tr>
</tbody>
</table>
</section>
<section id="audience">
<h2>Audience</h2>
<p>The <abbr title="Dataset Usage Vocabulary">DUV</abbr> is intended for
data producers and publishers interested in tracking, sharing, and
persisting consumer dataset usage. It is also intended for collaborators
who require an exchange medium to advertise and interactively convey
dataset usage. </p>
</section>
<section id="scope">
<h2>Scope</h2>
<p> The scope of the <abbr title="Dataset Usage Vocabulary">DUV</abbr>
is defined by the Data on the Web Best Practices (DWBP) Use Case
document [[DWBP-UCR]] based on the data usage requirements about
datasets. These requirements include: citing data on the Web, tracking
the usage of data, sharing feedback and rating data. These requirements
were derived from fourteen real world use cases examples provided in the
use case document. </p>
</section>
<section id="relationship_vocabularies">
<h2> Relationship to other Vocabularies</h2>
<h3>Vocabulary Reuse</h3>
<p>Based on DWBP the <abbr title="Dataset Usage Vocabulary">DUV</abbr>
heavily relies upon is vocabulary reuse to support citation, feedback,
and usage of datasets published on the Web. This section provides our
rationale and approach for vocabulary selection and reuse.</p>
<p>The core DUV begins with reusing the Data Catalog Vocabulary
[[VOCAB-DCAT]] <code>dcat:Dataset</code> and <code>dcat:Distribution</code>
classes and many of their related properties. In fact, the
DUV can be considered an extension of <code>the dcat:Dataset and </code><code>dcat:Distribution</code>
classes. </p>
<p>The Web Annotation Vocabulary [[OA]] is used to describe <code>duv:Feedback</code>
as a subclass inheriting the behavior of <code>oa:Annotation</code>.
The intent for the <code>duv:Feedback</code> is provided by the <code>oa:motivated_by</code>
property and <code>oa:Motivation</code> subclasses (for example: <code>oa:describing</code>,
<code>oa:questioning</code>, <code>oa:replying</code>). A subset of the
Motivation instances are important to describe feedback to data
publishers, and blogs between dataset consumers. In addition to
supporting <code>duv:Feedback</code>, because the Web Annotation
vocabulary provides a generic way of annotating any Web resource, it is
recommended that Web Annotation vocabulary be used to annotate the <code>dcat:Dataset</code>
for uses beyond the scope of the DUV. </p>
<p> The Semantic Publishing and Referencing [[SPAR]] Ontologies provides a
suite of vocabularies used to related entities to reference citations,
bibliographic records, and describe the publication process along with
other related activities. The DUV directly relies upon the FRBR-aligned
Bibliographic Ontology [[FaBIO]], and Dublin Core [[DC-TERMS]]
ontologies are used to describe citations and references between
datasets and cited sources. In addition to ontologies the research
community provided basic criteria for citing data on the Web
[[MSUDataCite]]. These resources helped scope the DUV citation model
into the minimal requirements for electronic data publication. Finally,
data citation principles being adopted [[FORCE11-Citation]] are also
being considered to ensure the DUV is consistent with guidelines
developed by other data citation communities.</p>
<h3>Alternative Vocabulary Considerations </h3>
<p>As discussed earlier, the intention of the DUV is to be thorough enough
to offer a starting point for describing data usage and yet be open to
using other alternative classes and properties as required by
developers. For example, duv:Feedback the subclass of
oa:Annotation reuses the object property oa:hasBody. While the [[OA]]
uses oa:TextualBody as a means to capture textual information, however
what if needed to capture feedback in alternative ways, it is highly
suggested spending time exploring resources such as the Open Knowledge
Foundation, Linked Open Vocabularies [[OKFN]] such as using the Review
vocabulary [[REV]]. This vocabulary features a very lightweight
way to specify ratings. <br>
<br>
While the focus of this document is mainly on representing the DUV using
semantic expressions, a very active effort Schema.org [[SCHEMA]]
provides lightweight data structures that can be used as markup that
commercial search engines recognize, aiding in discovery. Not only
do Schema.org and the DUV rely on many related concepts, efforts are
underway to extend the Schema.org to support additional data structures.</p>
</section>
<section id="Vocab_Overview">
<h2>Vocabulary Overview</h2>
<p>This section depicts the vocabulary in its entirety as a conceptual
model. Boxes are used to identify each class. Labeled open arrows
identify object and literal properties. White arrowheads depict class
inheritance with the parent class identified by the arrowhead.
Please note that while most of the properties are reused from other
vocabularies, they are included in the diagram to (1) reduce the
learning curve required by DUV implementers that would otherwise be
spent constantly referencing to third party vocabularies and (2) provide
a starting place to familiarize DUV implementers with the basics needed
to get them started. </p>
<a href="images/DUV_model.png"><img src="images/DUV_model.png" style="width:80%; vertical-align: bottom"
alt="The class diagram for DUV"></a>
<section id="Citation_Model">
<h3>Citation Model</h3>
<p>The citation model was motivated by the UCR requirement <a href="http://www.w3.org/TR/dwbp-ucr/#R-Citable">
R-Citable </a><em> It should be possible to cite data on the Web.</em>
The citation model is largely based on classes, properties, and
recommended approaches taken from the SPAR Ontologies.
<!--The remainder
of the model is composed from the Open Annotation vocabulary, Dublin Core, FOAF and by newly introduced DUV properties. --></p>
<p>The citation model seeks to meet the needs of:</p>
<ol>
<li>Data consumers who cite published <code>dcat:Dataset</code> and <code>dcat:Distribution</code>
<a href="#ex1">(See Example 1)</a> by using basic bibliographic
reference criteria provided by the data publisher. To do
this, DUV extensions are added to the DCAT model in two ways:
First because <code>dcat:Dataset</code> or <code>dcat:Distribution</code>
are forms of electronic media that can be potentially cited, both
use the same citation properties. Secondly, to fill any
information gaps, new properties were created or properties from
other vocabularies were added.
<p> </p>
<p> <a href="images/DUV_citation_submodel_part_1.png"><img src="images/DUV_citation_submodel_part_1.png"
style="width:50%; vertical-align: bottom" alt="The class diagram for the citation DUV"></a>
</p>
<p>The table below shows how a portion of the DUV properties can be
used to form a bibliographic reference. </p>
<table style="width: 70%;" border="2">
<tbody>
<tr>
<td><span style="font-weight: bold;">Bibliographic Field</span></td>
<td><span style="font-weight: bold;">Definition</span></td>
<td><span style="font-weight: bold;">Property used in DUV</span></td>
</tr>
<tr>
<td>Author(s)</td>
<td>An individual, a group of individuals, or an organization
responsible for creating the dataset or distribution.</td>
<td>dct:creator</td>
</tr>
<tr>
<td>Title</td>
<td>Name of the dataset or distribution or the name of the
activities that produced the data.</td>
<td>dct:title</td>
</tr>
<tr>
<td>Year</td>
<td>When data was produced.</td>
<td>dct:created</td>
</tr>
<tr>
<td>Publisher</td>
<td>This may be the name of the archive where it is housed or
the organization responsible for performing publication
services.</td>
<td>dct:publisher</td>
</tr>
<tr>
<td>Distributor (if used)</td>
<td>Organization that makes the data set available for
downloading and use </td>
<td>duv:hasDistributor</td>
</tr>
<tr>
<td>Edition or version</td>
<td>Edition or version number associated with the data set</td>
<td>pav:version </td>
</tr>
<tr>
<td>Access information (a URL or other persistent identifier).
</td>
<td>Web address of dataset or distribution, or persistent
identifier such as digital object identifier (DOI). </td>
<td>dct:identifier<br>
</td>
</tr>
</tbody>
</table>
<p><br>
Extracting metadata from the properties in <a href="#ex1">example
1</a>, it is possible to form the following example reference:</p>
<table>
<tbody>
<tr>
<td>
<p><span style="font-style: italic;">dct:creator + .
+ dct:title + pav:version </span>+ . + <span style="font-style: italic;">dct:publisher
</span>+ [. +<span style="font-style: italic;">
duv:hasDistributor</span> + ] . + <span style="font-style: italic;">dct:identifier</span></p>
<p>MyCity Bus Association. Bus stops of MyCity. 1.0 version.
Transport Agency, 2015 [publisher,distributor].
doi:10.0902/1975.16</p>
</td>
</tr>
</tbody>
</table>
<p> </p>
</li>
<li>Data publishers wanting to annotate <code>dcat:Dataset</code>/<code>dcat:Distribution</code>
with bibliographic references that provide data additional insights
to data consumers <a href="#ex2">(See Example 2)</a>. Data
publishers can also annotate a dataset or distribution with
bibliographic references provided by data consumers <a href="#ex2">(See
Example 3)</a>. For example, a researcher uses a dataset for
performing some experiments and then publishes a paper with the
experimentation's results. The dataset can be annotated with the
bibliographic reference of this paper. include: <code>dcat:Dataset</code>,
<code>dcat:Distribution</code>, <code>biro:BibliographicReference</code>,
<code>fabio:Expression</code>. Properties include: <code><code>frbr:part</code>,frbr:partOf</code>,
<code>biro:references</code>, <code>biro:isReferencedBy</code>.
<p> <a href="images/DUV_citation_submodel_part_2.png"><img src="images/DUV_citation_submodel_part_2.png"
style="width:25%; vertical-align: bottom" alt="The class diagram for the citation DUV"></a></p>
</li>
</ol>
<p>Note that while the DUV reuses a limited set of [[SPAR]] classes and
properties to support basic [[VOCAB-DCAT]] Dataset and Distribution
citation requirements, the [[SPAR]] ontologies have a richer set of
classes and properties for more advanced representations. For example
[[FaBIO]] <code>fabio:Expression</code> class has many subclasses
(e.g. <code>fabio:Policy</code>) that help characterize referenced
material. </p>
<ol>
</ol>
</section>
<section id="Usage_Model">
<h3>Usage Model</h3>
<p>The usage model was motivated by the UCR requirement <a href="http://www.w3.org/TR/dwbp-ucr/#R-Citable">
R-TrackDataUsage </a> <em>It should be possible to track the usage
of data.</em> Sharing and tracking data usage can help enhancing the
utility of the datasets by providing help describing how the datasets
can be used by a consumer <a href="#ex5">(See Example 5)</a>. Usage
could be considered as enabling <span style="font-style: italic;">descriptive</span>
information provided by the data publisher to help the consumer
community make use of datasets and distributions. Based on the use
cases, data usage can help provide guidance information about how to
use the dataset and tools <a href="#ex6">(See Example 6)</a> that
can be used with the dataset. As also stipulated by use cases is the
need to track usage metrics </p>
<p>The following classes constitute the Usage Model: <code>dcat:Dataset</code>,
<code>dcat:Distribution</code>, <code>duv:Usage</code>, <code>duv:UsageTool</code><code></code>.
Properties include: <code>duv:hasUsage</code>, <code>duv:hasUsageTool</code><code></code>,
<code>duv:refersTo</code>, <code>dct:identifier</code>, <code>dct:title</code>,
<code>dct:created</code>, <code>pav:version</code>, <code>dct:issued</code>,
and <code>dct:description</code>. </p>
<a href="images/DUV_usage_submodel.png"><img src="images/DUV_usage_submodel.png"
style="width:50%; vertical-align: bottom" alt="The class diagram for the DUV usage submodel"></a>
</section>
<section id="Feedback_Model">
<h3>Feedback Model</h3>
<p> The feedback model was motivated by UCR requirement <a href="http://www.w3.org/TR/dwbp-ucr/#R-UsageFeedback">R-UsageFeedback</a><em>
Data consumers should have a way of sharing feedback and rating data
<a href="#ex4">(See Example 4)</a> . </em>User feedback is
important to address data quality concerns about published dataset.
Different users may have different experiences with the same dataset
so it is important to capture the context in which data was used and
the profile of the user who uses it. <a href="http://www.w3.org/TR/dwbp-ucr/#R-UsageFeedback">R-UsageFeedback</a>
should also provide a way for consumers to communicate suggested
corrections or advice back to data publisher. </p>
<a href="images/DUV_feedback_submodel.png"><img src="images/DUV_feedback_submodel.png"
style="width:50% ; vertical-align: bottom" alt="The class diagram for the DUV feedback submodel"></a>
<p>The following classes constitute the Feedback Model: <code>dcat:Dataset</code>,
<code>dcat:Distribution</code>, <code>oa:Annotation</code>, <code>oa:Motivation</code>,
<code>duv:UserFeedback</code>, <code>dqv:UserQualityFeedback</code>,
<code>duv:RatingFeedback</code>, <code>oa:TextualBody</code>.
Properties include: <code><code>duv:hasFeedback</code>, <code></code>duv:hasRating</code>,
<code>oa:hasTarget</code>, <code>oa:hasBody</code>,<code></code> <code>oa:motivatedBy</code><code></code>.
</p>
</section>
</section>
<!--<div class="note">This section will be non-normative and will contain links
back to the vocabularies we mention. </div> -->
<section id="vocabulary-specification">
<h2> Vocabulary Specification </h2>
<section id="class-ratingfeedback">
<h3> Class: RatingFeedback</h3>
<table class="definition">
<thead>
<tr>
<th>RDF Class:</th>
<th><a href="#class-ratingfeedback">duv:RatingFeedback</a></th>
</tr>
</thead>
<tbody>
<tr>
<td class="prop">Definition</td>
<td>Predefined criteria used to express a user opinion about a
dataset or distribution using a discrete range of values.</td>
</tr>
<tr>
<td class="prop">rdfs:isDefinedBy</td>
<td><a href="http://www.w3.org/ns/duv">http://www.w3.org/ns/duv</a></td>
</tr>
<tr>
<td>Label</td>
<td>rating feedback</td>
</tr>
<tr>
<td>rdfs:subClassOf</td>
<td><a href="#class-userFeedback">duv:UserFeedback</a></td>
</tr>
</tbody>
</table>
</section>
<section id="class-usage">
<h3>Class: Usage</h3>
<table class="definition">
<thead>
<tr>
<th>RDF Class:</th>
<th><a href="#class-usage">duv:Usage</a></th>
</tr>
</thead>
<tbody>
<tr>
<td class="prop">Definition</td>
<td>Actions that can be performed on a given dataset or
distribution.</td>
</tr>
<tr>
<td class="prop">rdfs:isDefinedBy</td>
<td><a href="http://www.w3.org/ns/duv">http://www.w3.org/ns/duv</a></td>
</tr>
<tr>
<td>Label</td>
<td>usage</td>
</tr>
</tbody>
</table>
</section>
<section id="class-usageTool">
<h3>Class: UsageTool</h3>
<table class="definition">
<thead>
<tr>
<th>RDF Class:</th>
<th><a href="#class-usageTool">duv:UsageTool</a></th>
</tr>
</thead>
<tbody>
<tr>
<td class="prop">Definition</td>
<td>A tool that can use a dataset or distribution.<br>
</td>
</tr>
<tr>
<td class="prop">rdfs:isDefinedBy</td>
<td><a href="http://www.w3.org/ns/duv">http://www.w3.org/ns/duv</a></td>
</tr>
<tr>
<td>Label</td>
<td>usage tool<br>
</td>
</tr>
</tbody>
</table>
</section>
<section id="class-userFeedback">
<h3>Class: UserFeedback</h3>
<table class="definition">
<thead>
<tr>
<th>RDF Class:</th>
<th><a href="#class-userFeedback">duv:UserFeedback</a> </th>
</tr>
</thead>
<tbody>
<tr>
<td class="prop">Definition</td>
<td>User feedback on a dataset or distribution.</td>
</tr>
<tr>
<td>Label</td>
<td>user feedback</td>
</tr>
<tr>
<td>rdfs:subClassOf</td>
<td> <a href="http://www.w3.org/ns/oa#d4e434">oa:Annotation</a></td>
</tr>
</tbody>
</table>
</section>
<section id="Properties">
<h3>Properties</h3>
<!--<h4 aria-level="3" id="Property:chars">Property: chars</h4>
<table class="definition"> <thead> <tr> <th>RDF Property:</th> <th> <a href="#Property:chars">cnt:chars</a> </th> </tr> </thead> <tbody> <tr> <td class="prop">Definition</td> <td>Text content of an annotation body.</td> </tr> <tr> <td>vann:usageNote</td> <td>cnt:ContentAsText (subject) cnt:chars (predicate) rdfs:Literal (object)</td> </tr> <tr> <td>Label</td> <td>chars</td> </tr> </tbody> </table> -->
<h4 aria-level="3" id="Property:created">Property: created</h4>
<table class="definition">
<thead>
<tr>
<th>RDF Property:</th>
<th> <a href="#Property:created">dct:created</a> </th>
</tr>
</thead>
<tbody>
<tr>
<td class="prop">Definition</td>
<td> <span style="font-family: Verdana,Arial,"Arial Unicode MS",Helvetica,sans-serif;"></span>Date
of creation of the resource</td>
</tr>
<tr>
<td>vann:usageNote</td>
<td>dcat:Dataset (subject) dct:created (predicate) rdfs:Literal
(object)<br>
dcat:Distribution (subject) dct:created (predicate) rdfs:Literal
(object)</td>
</tr>
<tr>
<td>Label</td>
<td>created</td>
</tr>
</tbody>
</table>
<h4 aria-level="3" id="Property:creator"> Property: creator </h4>
<table class="definition">
<thead>
<tr>
<th>RDF Property:</th>
<th><a href="#Property:creator">dct:creator</a> </th>
</tr>
</thead>
<tbody>
<tr>
<td class="prop">Definition</td>
<td>An entity primarily responsible for making the resource.
</td>
</tr>
<tr>
<td>vann:usageNote</td>
<td>dcat:Dataset (subject) dct:creator (predicate) foaf:Agent
(object)<br>
dcat:Distribution (subject) dct:creator (predicate) foaf:Agent
(object)</td>
</tr>
<tr>
<td>Label</td>
<td>creator</td>
</tr>
</tbody>
</table>
<h4 aria-level="3" id="Property:description"> Property: description </h4>
<table class="definition">
<thead>
<tr>
<th>RDF Property:</th>
<th><a href="#Property:description">dct:description</a> </th>
</tr>
</thead>
<tbody>
<tr>
<td class="prop">Definition</td>
<td>A free text account of the resource </td>
</tr>
<tr>
<td>vann:usageNote</td>
<td>duv:Usage (subject) dct:description (predicate) rdfs:Literal
(object)<br>
duv:UsageTool (subject) dct:description (predicate) rdfs:Literal
(object)</td>
</tr>
<tr>
<td>Label</td>
<td>description</td>
</tr>
</tbody>
</table>
<h4 aria-level="3" id="Property:fundedBy">Property: fundedBy</h4>
<table class="definition">
<thead>
<tr>
<th>RDF Property:</th>
<th><a href="http://rdf-vocabulary.ddialliance.org/discovery.html">disco:fundedBy</a>
</th>
</tr>
</thead>
<tbody>
<tr>
<td class="prop">Definition</td>
<td>The agent (person, organization) responsible for sponsoring
the dataset/distribution research that made the creation of the
dataset possible, such as codifying and digitizing the data. </td>
</tr>
<tr>
<td>vann:usageNote</td>
<td><br>
dcat:Dataset (subject) disco:fundedBy (predicate) foaf:Agent
(object)<br>
dcat:Distribution (subject) fundedBy (predicate) foaf:Agent
(object)</td>
</tr>
<tr>
<td>Label</td>
<td>funded by</td>
</tr>
</tbody>
</table>
<h4 id="Property:hasbody">Property: oa:hasBody</h4>
<table class="definition">
<thead>
<tr>
<th>RDF Property:</th>
<th><a href="#Property:hasbody">oa:hasBody</a></th>
</tr>
</thead>
<tbody>
<tr>
<td class="prop">Definition</td>
<td>Body of the comment associated with user feedback.</td>
</tr>
<tr>
<td>vann:usageNote</td>
<td>duv:UserFeedback (subject) oa:hasBody (predicate)
(object)<br>
oa:Annotation (subject) oa:hasBody (predicate)
oa:TextualBody(object)</td>
</tr>
<tr>
<td>Label</td>
<td>has body</td>
</tr>
</tbody>
</table>
<h4 id="Property:hasDistributor" aria-level="3">Property:
hasDistributor</h4>
<table class="definition">
<thead>
<tr>
<th>RDF Property:</th>
<th><a href="#Property:hasDistributor">duv:hasDistributor</a> </th>
</tr>
</thead>
<tbody>
<tr>
<td class="prop">Definition</td>
<td>The distributor is the organization that makes the dataset or
distribution available for downloading and use.</td>
</tr>
<tr>
<td>vann:usageNote</td>
<td>dcat:Dataset (subject) duv:hasDistributor (predicate)
foaf:Agent (object)<br>
dcat:Distribution (subject) duv:hasDistributor (predicate)
foaf:Agent (object) </td>
</tr>
<tr>
<td>Label</td>
<td>has distributor</td>
</tr>
</tbody>
</table>
<h4 id="Property:hasrating" aria-level="3">Property: hasRating</h4>
<table class="definition">
<thead>
<tr>
<th>RDF Property:</th>
<th><a href="#Property:hasrating">duv:hasRating</a></th>
</tr>
</thead>
<tbody>
<tr>
<td class="prop">Definition</td>
<td>RatingFeedback has rating opinion</td>
</tr>
<tr>
<td>vann:usageNote</td>
<td>duv:RatingFeedback (subject) duv:hasRating (predicate)
skos:Concept (object)</td>
</tr>
<tr>
<td>Label</td>
<td>has rating</td>
</tr>
</tbody>
</table>
<h4 id="Property:hastarget" aria-level="3">Property: oa:hasTarget</h4>
<table class="definition">
<thead>
<tr>
<th>RDF Property:</th>
<th><a href="#Property:hastarget">oa:hasTarget</a></th>
</tr>
</thead>
<tbody>
<tr>
<td class="prop">Definition</td>
<td>Dataset or distribution associated with UserFeedback. </td>
</tr>
<tr>
<td>vann:usageNote</td>
<td>duv:UserFeedback (subject) oa:hasTarget (predicate)
dcat:Dataset (object)<br>
duv:UserFeedback (subject) oa:hasTarget (predicate)
dcat:Distribution (object)</td>
</tr>
<tr>
<td>Label</td>
<td>has target</td>
</tr>
</tbody>
</table>
<br>
<h4 aria-level="3" id="Property:hasusage">Property: hasUsage</h4>
<table class="definition">
<thead>
<tr>
<th>RDF Property:</th>
<th><a href="#Property:hasusage">duv:hasUsage</a></th>
</tr>
</thead>
<tbody>
<tr>
<td class="prop">Definition</td>
<td>Dataset or distribution usage guidance/instructions. </td>
</tr>
<tr>
<td>vann:usageNote</td>