Merge pull request #648 from takuki/takuki-issue-630

"titles" in Thing class is optional (for issue #630)

index.html

@@ -1375,7 +1375,7 @@ <h2>Core Vocabulary Definitions</h2>
       </p>
 
         <section><h3><code>Thing</code></h3><p>An abstraction of a physical or a virtual entity whose metadata and interfaces are described by a WoT Thing Description, whereas a virtual entity is the composition of one or more Things.</p><table class="def"><thead><tr><th><a>Vocabulary term</a></th><th>Description</th><th>Assignment</th><th>Type</th></tr></thead><tbody><tr class="rfc2119-table-assertion" id="td-vocab-at-context--Thing"><td><code>@context</code></td><td>JSON-LD keyword to define short-hand names called terms that are used throughout a TD document.</td><td>mandatory</td><td><a href="http://www.w3.org/TR/2012/REC-xmlschema11-2-20120405/#anyURI"><code>anyURI</code></a> or <a>Array</a></td></tr><tr class="rfc2119-table-assertion" id="td-vocab-at-type--Thing"><td><code>@type</code></td><td>JSON-LD keyword to label the object with semantic tags (or types).</td><td>optional</td><td><a href="http://www.w3.org/TR/2012/REC-xmlschema11-2-20120405/#string"><code>string</code></a> or <a>Array</a> of <a href="http://www.w3.org/TR/2012/REC-xmlschema11-2-20120405/#string"><code>string</code></a></td></tr><tr class="rfc2119-table-assertion" id="td-vocab-id--Thing"><td><code>id</code></td><td>unique identifier of the Thing (URI, e.g. custom URN).</td><td>mandatory</td><td><a href="http://www.w3.org/TR/2012/REC-xmlschema11-2-20120405/#anyURI"><code>anyURI</code></a></td></tr><tr class="rfc2119-table-assertion" id="td-vocab-title--Thing"><td><code>title</code></td><td>Provides a human-readable title (e.g., display a text for UI representation) based on a default language.</td><td>mandatory</td><td><a href="http://www.w3.org/TR/2012/REC-xmlschema11-2-20120405/#string"><code>string</code></a></td></tr>
-<tr class="rfc2119-table-assertion" id="td-vocab-titles--Thing"><td><code>titles</code></td><td>Provides multi-language human-readable titles (e.g., display a text for UI representation in different languages).</td><td>mandatory</td><td><a href="#multilanguage"><code>MultiLanguage</code></a></td></tr>
+<tr class="rfc2119-table-assertion" id="td-vocab-titles--Thing"><td><code>titles</code></td><td>Provides multi-language human-readable titles (e.g., display a text for UI representation in different languages).</td><td>optional</td><td><a href="#multilanguage"><code>MultiLanguage</code></a></td></tr>
 <tr class="rfc2119-table-assertion" id="td-vocab-description--Thing"><td><code>description</code></td><td>Provides additional (human-readable) information based on a default language.</td><td>optional</td><td><a href="http://www.w3.org/TR/2012/REC-xmlschema11-2-20120405/#string"><code>string</code></a></td></tr>
 <tr class="rfc2119-table-assertion" id="td-vocab-descriptions--Thing"><td><code>descriptions</code></td><td>Can be used to support (human-readable) information in different languages.</td><td>optional</td><td><a href="#multilanguage"><code>MultiLanguage</code></a></td></tr>
 <tr class="rfc2119-table-assertion" id="td-vocab-version--Thing"><td><code>version</code></td><td>Provides version information.</td><td>optional</td><td><a href="#versioninfo"><code>VersionInfo</code></a></td></tr>

validation/td-validation.ttl

@@ -113,7 +113,6 @@
     ] ;
     sh:property [
         sh:path td:titles ;
-        sh:minCount 1 ;
         sh:class td:MultiLanguage ;
         sh:order "2"^^xsd:integer ;
     ] ;