<taxonomy>

<taxonomy> (taxonomy) defines a typology either implicitly, by means of a bibliographic citation, or explicitly by a structured taxonomy. [2.3.7. The Classification Declaration]
Module header
Attributes Attributes att.global (xml:id, n, xml:lang) (lim.att.global.fragmentable (part)) (att.global.rendition (rendition)) (att.global.source (source))
Contained by
header: taxonomy
May contain
core: biblStruct desc gloss listBibl
header: category taxonomy
msdescription: msDesc
Note
Nested taxonomies are common in many fields, so the taxonomy element can be nested.
Examples

<taxonomy xml:id="tax.b">
   <bibl>Brown Corpus</bibl>
   <category xml:id="tax.b.a">
      <catDesc>Press Reportage</catDesc>
      <category xml:id="tax.b.a1">
         <catDesc>Daily</catDesc>
      </category>
      <category xml:id="tax.b.a2">
         <catDesc>Sunday</catDesc>
      </category>
      <category xml:id="tax.b.a3">
         <catDesc>National</catDesc>
      </category>
      <category xml:id="tax.b.a4">
         <catDesc>Provincial</catDesc>
      </category>
      <category xml:id="tax.b.a5">
         <catDesc>Political</catDesc>
      </category>
      <category xml:id="tax.b.a6">
         <catDesc>Sports</catDesc>
      </category>
   </category>
   <category xml:id="tax.b.d">
      <catDesc>Religion</catDesc>
      <category xml:id="tax.b.d1">
         <catDesc>Books</catDesc>
      </category>
      <category xml:id="tax.b.d2">
         <catDesc>Periodicals and tracts</catDesc>
      </category>
   </category>
</taxonomy>

<taxonomy>
   <category xml:id="literature">
      <catDesc>Literature</catDesc>
      <category xml:id="poetry">
         <catDesc>Poetry</catDesc>
         <category xml:id="sonnet">
            <catDesc>Sonnet</catDesc>
            <category xml:id="shakesSonnet">
               <catDesc>Shakespearean Sonnet</catDesc>
            </category>
            <category xml:id="petraSonnet">
               <catDesc>Petrarchan Sonnet</catDesc>
            </category>
         </category>
         <category xml:id="haiku">
            <catDesc>Haiku</catDesc>
         </category>
      </category>
      <category xml:id="drama">
         <catDesc>Drama</catDesc>
      </category>
   </category>
   <category xml:id="meter">
      <catDesc>Metrical Categories</catDesc>
      <category xml:id="feet">
         <catDesc>Metrical Feet</catDesc>
         <category xml:id="iambic">
            <catDesc>Iambic</catDesc>
         </category>
         <category xml:id="trochaic">
            <catDesc>trochaic</catDesc>
         </category>
      </category>
      <category xml:id="feetNumber">
         <catDesc>Number of feet</catDesc>
         <category xml:id="pentameter">
            <catDesc>>Pentameter</catDesc>
         </category>
         <category xml:id="tetrameter">
            <catDesc>>Tetrameter</catDesc>
         </category>
      </category>
   </category>
</taxonomy>
<!-- elsewhere in document -->
<lg ana="#shakesSonnet #iambic #pentameter">
   <l>Shall I compare thee to a summer's day</l>
   <!-- ... -->
</lg>
Source Github

<elementSpec module="header" ident="taxonomy">
   <gloss>taxonomy</gloss>
   <desc>defines a typology either implicitly, by means of a bibliographic
 citation, or explicitly by a structured taxonomy.</desc>
   <classes>
      <memberOf key="att.global"/>
   </classes>
   <content>
      <alternate>
         <alternate>
            <alternate minOccurs="1" maxOccurs="unbounded">
               <elementRef key="category"/>
               <elementRef key="taxonomy"/>
            </alternate>
            <sequence>
               <alternate minOccurs="1" maxOccurs="unbounded">
                  <classRef key="model.descLike" minOccurs="1" maxOccurs="1"/>
                  <elementRef key="equiv" minOccurs="1" maxOccurs="1"/>
                  <elementRef key="gloss" minOccurs="1" maxOccurs="1"/>
               </alternate>
               <alternate minOccurs="0" maxOccurs="unbounded">
                  <elementRef key="category"/>
                  <elementRef key="taxonomy"/>
               </alternate>
            </sequence>
         </alternate>
         <sequence>
            <classRef key="model.biblLike"/>
            <alternate minOccurs="0" maxOccurs="unbounded">
               <elementRef key="category"/>
               <elementRef key="taxonomy"/>
            </alternate>
         </sequence>
      </alternate>
   </content>
</elementSpec>