◇◆

vocab-identifier Vocabulary/Taxonomy Identifier

Unique identifier of the controlled vocabulary, taxonomy, ontology, database, thesaurus, index, etc. that is the source of the terms in a group of terms such as a keywords group or subject group. The content is typically (but not limited to) a URI or DOI.

Usage/Remarks

Four attributes are used in this Tag Set to identify terms from a controlled or an uncontrolled vocabulary:
vocab
Name of the controlled or uncontrolled vocabulary, taxonomy, ontology, index, database, or similar that is the source of the term. For example, for a subject term, a value might be the IPC Codes (“ipc”) or MESH headings (“mesh”). For an uncontrolled term, the value might be an area of study such as “medical-devices” or merely the word “uncontrolled”.
vocab-identifier
Unique identifier of the vocabulary, such as (but not limited to) a URI or DOI. For example, for Dublin Core (DCC), the identifier might be http://dublincore.org/documents/2012/06/14/dces/. For CRediT, the identifier might be https://credit.niso.org/.
vocab-term
The content of the element is the free prose version of the vocabulary or taxonomic term. The @vocab-term attribute holds the canonical version of the same term, as it appears in the vocabulary. For example, if the attribute value was “digitized-vor”, the element might contain the display text “Digitized Version of Record”.
vocab-term-identifier
Unique identifier of the term within a specific vocabulary, such as (but not limited to) an item number, a URI, DOI, etc.
OPTIONAL on many elements; click for list and usage

<compound-kwd>, <compound-subject>, <content-version>, <custom-meta>, <extended-by>, <inline-media>, <institution-id>, <kwd>, <kwd-group>, <named-content>, <nested-kwd>, <resource-id>, <restricted-by>, <role>, <see>, <see-also>, <see-also-entry>, <see-entry>, <subj-group>, <subject>, <term>, <unstructured-kwd-group>

Value Meaning
Text, numbers, or special characters An identifier of the term within a specific vocabulary, such as (but not limited to) an item number, a URI, DOI, etc.
Restriction @vocab-identifier is an optional attribute; there is no default.
Tagged Samples
An Inspec vocabulary (for a keyword group) 
...
<kwd-group id="KG1" vocab="Inspec"
  vocab-identifier="http://www.theiet.org/resources/inspec/about/records/ithesaurus.cfm" 
  xml:lang="en">
 <compound-kwd id="KG1.1">
  <compound-kwd-part content-type="code">A7865P</compound-kwd-part>
  <compound-kwd-part content-type="text">Optical properties of other 
   inorganic semiconductors and insulators (thin films/low dimensional 
   structures)</compound-kwd-part>
 </compound-kwd>

 <compound-kwd id="KG1.2">
  <compound-kwd-part content-type="code">A7865T</compound-kwd-part>
  <compound-kwd-part content-type="text">Optical properties of organic 
   compounds and polymers (thin films/low dimensional structures)</compound-kwd-part>
 </compound-kwd>
</kwd-group>
...
Vocabulary is a CRediT taxonomy term. 
...
<contrib-group>
 <contrib>
  <string-name><given-names>Barbara</given-names> <surname>Johnston</surname></string-name>
  <role vocab="CRediT" 
    vocab-identifier="https://casrai.org/credit"
    vocab-term="Conceptualization"
    degree-contribution="lead">study designer</role>
 </contrib>
 <contrib>
  <string-name><given-names>Brooke</given-names> <surname>Jackson</surname></string-name>
  <role vocab="CRediT" 
    vocab-identifier="https://casrai.org/credit"
    vocab-term="Writing &#8212; original draft"
    degree-contribution="lead">writer</role>
 </contrib>
</contrib-group>
...
Special characters in CRediT attribute values need to be given as Unicode character references. In narrative text, Unicode character references, general entities, or characters may be used. 
...
<contrib-group>
 <contrib>
  <string-name><given-names>Anne</given-names> <surname>Berns</surname></string-name>
  <role vocab="CRediT" 
    vocab-identifier="https://casrai.org/credit"
    vocab-term="Writing &#8212; original draft"
    degree-contribution="lead">Writing &ndash; Original Draft</role>
 </contrib>
</contrib-group>
...