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<compound-kwd-part> Compound Keyword Part

Individual component of a multi-part keyword (for example, a code, the code’s meaning).

Usage/Remarks

Some keywords are a simple word or phrase; such keywords should generally be tagged using the <kwd> element. The <compound-kwd> element is used when keywords are composed of multiple parts, such as:
  • a code and its meaning, or
  • an abbreviation and its expansion.
For more information on the handling of compound keywords, see the tagging practices section Complex/Compound/Nested Keywords.
It is recommended that the @content-type attribute be used to indicate the role of each <compound-kwd-part>. Example values corresponding to the examples given in the list above, might be code with text for the meaning or abbrev with expansion.

Attribute Best Practice

If the content of the <compound-kwd-part> element is a term from a controlled vocabulary (ontology, taxonomy, term-list, vocabulary, industry glossary, or other known source), the term identification attributes should be used to identify that source. The vocabulary attributes should also be used, unless the vocabulary has already been named on the <compound-kwd>.
Related Elements
One <compound-kwd-part> element is used to mark each component of a complex keyword that is contained within a <compound-kwd>.
Attributes
content-type

Base Attributes

id
xml:base
Models and Context
May be contained in
<compound-kwd>
Description
Any combination of:
Content Model
<!ELEMENT  compound-kwd-part
                        (#PCDATA %compound-kwd-part-elements;)*      >
Expanded Content Model

(#PCDATA | break | email | ext-link | uri | inline-supplementary-material | related-article | related-object | hr | bold | fixed-case | italic | monospace | overline | overline-start | overline-end | roman | sans-serif | sc | strike | underline | underline-start | underline-end | ruby | alternatives | inline-graphic | inline-media | private-char | chem-struct | inline-formula | tex-math | mml:math | abbrev | index-term | index-term-range-end | milestone-end | milestone-start | named-content | styled-content | fn | target | xref | sub | sup | x)*

Tagged Samples
Codes and their expansions 
...
<article-meta>
 ...  
 <kwd-group kwd-group-type="Inspec-class">
  <compound-kwd>
   <compound-kwd-part content-type="code">B0260</compound-kwd-part>
   <compound-kwd-part content-type="text">Optimisation 
    techniques</compound-kwd-part>
  </compound-kwd>
  <compound-kwd>
   <compound-kwd-part content-type="code">B6140</compound-kwd-part>
   <compound-kwd-part content-type="text">Signal processing and 
    detection</compound-kwd-part>
  </compound-kwd>
  <compound-kwd>
   <compound-kwd-part content-type="code">B6320</compound-kwd-part>
   <compound-kwd-part content-type="text">Radar equipment, systems 
    and applications</compound-kwd-part>
  </compound-kwd>
 </kwd-group>
</article-meta>
...
...
<article-meta>
 ...
 <abstract>...</abstract>
 <kwd-group kwd-group-type="author">
  <compound-kwd content-type="ISO-639-1">
   <compound-kwd-part content-type="ISO-639-1-code">de</compound-kwd-part>
   <compound-kwd-part content-type="ISO-639-1-language">German</compound-kwd-part>
  </compound-kwd>
  <compound-kwd content-type="ISO-639-1">
   <compound-kwd-part content-type="ISO-639-1-code">en</compound-kwd-part>
   <compound-kwd-part content-type="ISO-639-1-language">English</compound-kwd-part>
  </compound-kwd>
  <compound-kwd content-type="ISO-639-1">
   <compound-kwd-part content-type="ISO-639-1-code">fr</compound-kwd-part>
   <compound-kwd-part content-type="ISO-639-1-language">French</compound-kwd-part>
  </compound-kwd>
  ...
 </kwd-group>
</article-meta>
...
... 
<kwd-group> 
 <compound-kwd>
  <compound-kwd-part content-type="code">B01D57/02</compound-kwd-part>
  <compound-kwd-part content-type="value">By electrophoresis</compound-kwd-part>
 </compound-kwd>
 ...
</kwd-group>
...
Abbreviations and their expansions 
...
<article-meta>
 ...
 <abstract>...</abstract>
 <kwd-group kwd-group-type="author">
  <compound-kwd>
   <compound-kwd-part content-type="abbrev">AODM</compound-kwd-part>
   <compound-kwd-part content-type="expansion">adult onset diabetes mellitus</compound-kwd-part>
  </compound-kwd>
  <compound-kwd>
   <compound-kwd-part content-type="abbrev">DI</compound-kwd-part>
   <compound-kwd-part content-type="expansion">diabetes insipidus</compound-kwd-part>
  </compound-kwd>
  <compound-kwd>
   <compound-kwd-part content-type="abbrev">DKA</compound-kwd-part>
   <compound-kwd-part content-type="expansion">diabetic ketoacidosis</compound-kwd-part>
  </compound-kwd>
  ...
 </kwd-group>
</article-meta>
...
With vocabulary attributes 
...
<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>
...
Including Japanese 
...
<article-meta>
 ...
 <kwd-group xml:lang="ja">
  <compound-kwd>
   <compound-kwd-part content-type="code">321</compound-kwd-part>
   <compound-kwd-part content-type="text">加温空気</compound-kwd-part>
  </compound-kwd>
 </kwd-group>
</article-meta>
...
Two vocabularies in one <kwd-group> 
...
<kwd-group kwd-group-type="library-classifications">
 <compound-kwd vocab="LOC" 
   vocab-term="Diseases of the respiratory system"
   vocab-term-identifier="RC705-779">
  <compound-kwd-part>RC705-779</compound-kwd-part>
  <compound-kwd-part>Diseases of the respiratory system</compound-kwd-part>
 </compound-kwd>

 <compound-kwd vocab="Dewey Decimal" 
   vocab-term="Diseases of the respiratory system"
   vocab-term-identifier="616.3">
  <compound-kwd-part>616.3</compound-kwd-part>
  <compound-kwd-part>Diseases of the respiratory system</compound-kwd-part>
 </compound-kwd>
</kwd-group>
...
Related Resources