<dataSpec>

<dataSpec> (datatype specification) documents a datatype. [23.3 Specification Elements 23.7 Macro Specifications]
Module tagdocs — Documentation Elements
Attributes
Member of
model.oddDecl
Contained by
cmc: post
core: add corr del desc emph head hi item l meeting note orig p q quote ref reg said sic stage textLang title unclear
dictionaries: case colloc def dictScrap entryFree etym form gen gram gramGrp hyph iType lang lbl mood number orth per pos pron stress subc syll tns usg xr
drama: camera caption castList epilogue performance prologue set sound tech view
figures: cell figDesc figure
header: change handNote licence rendition scriptNote tagUsage
iso-fs: fDescr fsDescr
linking: ab seg
msdescription: accMat acquisition additions collation condition custEvent decoNote filiation foliation layout musicNotation origin provenance signatures source summary support surrogates typeNote
namesdates: occupation
spoken: u writing
tagdocs: schemaSpec specGrp
textcrit: lem rdg witness
textstructure: argument body div div1 div2 div3 div4 div5 div6 div7 docEdition epigraph imprimatur postscript salute signed titlePart trailer
transcr: damage metamark mod restore retrace secl supplied surplus
verse: rhyme
May contain
core: desc gloss
tagdocs: altIdent constraintSpec content equiv exemplum listRef remarks valList
Example
<dataSpec ident="teidata.pointer">
 <desc versionDate="2013-01-19"
  xml:lang="en">defines the range of
   attribute values used to provide a single URI, absolute or relative,
   pointing to some other resource, either within the current document
   or elsewhere.</desc>
 <content>
  <dataRef name="anyURI"/>
 </content>
</dataSpec>
Schematron

<sch:rule role="warn"
 context="tei:dataSpec/tei:content">
<sch:report test=".//tei:anyElement | .//tei:classRef | .//tei:elementRef"> A datatype specification should not refer to an element or a class.
</sch:report>
</sch:rule>
Content model 
<content>
 <sequence>
  <alternate minOccurs="0"
   maxOccurs="unbounded">
   <classRef key="model.identSynonyms"/>
   <classRef key="model.descLike"/>
  </alternate>
  <alternate minOccurs="0" maxOccurs="1">
   <elementRef key="content"/>
   <elementRef key="valList"/>
  </alternate>
  <elementRef key="constraintSpec"
   minOccurs="0" maxOccurs="unbounded"/>
  <elementRef key="exemplum" minOccurs="0"
   maxOccurs="unbounded"/>
  <elementRef key="remarks" minOccurs="0"
   maxOccurs="unbounded"/>
  <elementRef key="listRef" minOccurs="0"
   maxOccurs="unbounded"/>
 </sequence>
</content>
Schema Declaration 
<rng:element name="dataSpec">
 <rng:ref name="att.global.attributes"/>
 <rng:ref name="att.global.rendition.attributes"/>
 <rng:ref name="att.global.linking.attributes"/>
 <rng:ref name="att.global.analytic.attributes"/>
 <rng:ref name="att.global.facs.attributes"/>
 <rng:ref name="att.global.change.attributes"/>
 <rng:ref name="att.global.responsibility.attributes"/>
 <rng:ref name="att.global.source.attributes"/>
 <rng:ref name="att.identified.attributes"/>
 <rng:ref name="att.combinable.attributes"/>
 <rng:ref name="att.deprecated.attributes"/>
 <rng:group>
  <rng:zeroOrMore>
   <rng:choice>
    <rng:ref name="model.identSynonyms"/>
    <rng:ref name="model.descLike"/>
   </rng:choice>
  </rng:zeroOrMore>
  <rng:optional>
   <rng:choice>
    <rng:ref name="content"/>
    <rng:ref name="valList"/>
   </rng:choice>
  </rng:optional>
  <rng:zeroOrMore>
   <rng:ref name="constraintSpec"/>
  </rng:zeroOrMore>
  <rng:zeroOrMore>
   <rng:ref name="exemplum"/>
  </rng:zeroOrMore>
  <rng:zeroOrMore>
   <rng:ref name="remarks"/>
  </rng:zeroOrMore>
  <rng:zeroOrMore>
   <rng:ref name="listRef"/>
  </rng:zeroOrMore>
 </rng:group>
</rng:element>
element dataSpec
{
   att.global.attributes,
   att.global.rendition.attributes,
   att.global.linking.attributes,
   att.global.analytic.attributes,
   att.global.facs.attributes,
   att.global.change.attributes,
   att.global.responsibility.attributes,
   att.global.source.attributes,
   att.identified.attributes,
   att.combinable.attributes,
   att.deprecated.attributes,
   (
      ( model.identSynonyms | model.descLike )*,
      ( content | valList )?,
      constraintSpec*,
      exemplum*,
      remarks*,
      listRef*
   )
}