<compound-subject>

Compound Subject Name

Wrapper element to hold all the parts of a multi-part subject (for example, a subject term and the code representing that term).

Remarks

Attribute Best Practice: If the content of the <compound-subject> element is a term from a controlled vocabulary (ontology, taxonomy, term-list, vocabulary, industry glossary, or other known source), the vocabulary attributes should be used to identify that source. The source named can be a formal ontology or an informal field of study.
Term Identification Attributes: Two attributes are used in this Tag Set to identify an individual term from a vocabulary (controlled or an uncontrolled):
vocab-term
The content of the element is the display 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.
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.
Vocabulary Identification Attributes: Two attributes are used in this Tag Set to identify a vocabulary. If these attributes have already been used on <subj-group>, they need not be repeated on each <compound-subject>.
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 may be “http://dublincore.org/documents/2012/06/14/dces/”.

Related Elements

The <compound-subject> may be used if a subject has multiple parts, but need not be used unless both parts need to be captured:
  • If a subject is only a word or phrase (Neuroscience, Physical Sciences), the simple <subject> element can be used to capture this information (<subject>Neuroscience</subject> or <subject>Physical Sciences</subject>).
  • If a subject contains both a term and a code (A11 Permeability) but only one of those objects needs to be captured, a <subject> element may still be used, to record either the code (<subject>A11</subject>) or the subject (<subject>Permeability</subject>). If such a compound subject is considered to be a single subject, the <subject> element may also be used: <subject>A11 Permeability</subject>.
  • If a subject contains both a term and a code, and it is useful to record both the code and the term separately, each can be captured as a <compound-subject-part>s inside a <compound-subject>. (See tagged examples below.)

Attributes

Content Model

<!ELEMENT  compound-subject
                        %compound-subject-model;                     >

Expanded Content Model

(compound-subject-part+)

Description

This element may be contained in:

Example 1

Coded subjects:
...
<article-categories>
<subj-group>
  <compound-subject>
    <compound-subject-part
     content-type="code">A1</compound-subject-part>
    <compound-subject-part
     content-type="text">Cellular and Molecular Biology
    </compound-subject-part>
  </compound-subject>
  <subj-group>
    <compound-subject>
      <compound-subject-part
       content-type="code">A11</compound-subject-part>
      <compound-subject-part
       content-type="text">Blood&ndash;brain
        barrier</compound-subject-part>
    </compound-subject>
    <subj-group>
      <compound-subject>
        <compound-subject-part
          content-type="code">A115</compound-subject-part>
        <compound-subject-part
          content-type="text">Permiability
        </compound-subject-part>
      </compound-subject>
    </subj-group>
  </subj-group>
</subj-group>

<subj-group>
  <compound-subject>
    <compound-subject-part
      content-type="code">A2</compound-subject-part>
    <compound-subject-part
      content-type="text">">Neurobiology
    </compound-subject-part>
  </compound-subject>
</subj-group>

</article-categories>
...

Example 2

Using the @content-type attribute to name the source and components:
...
<article-categories>
<subj-group subj-group-type="flesch-subject-headings">
  <compound-subject>
    <compound-subject-part
      content-type="flesch-code2">A2</compound-subject-part>
    <compound-subject-part
      content-type="flesch-short-form">Neurobiology
    </compound-subject-part>
  </compound-subject>
</subj-group>
</article-categories>
...