<precision>

<precision> indicates the numerical accuracy or precision associated with some aspect of the text markup.
Módulo certainty — 21 Certainty, Precision, and Responsibility
Además de los atributos globales
target points at the element or elements the precision of which is to be specified.
Estado Opcional
Tipo de datos 1–∞ apariciones de  

<rng:ref name="data.pointer"/>
data.pointer
separado por espacio en blanco
match supplies an XSLT 2.0 pattern which may be used to select those portions of the document the precision of which is to be specified.
Estado Opcional
Tipo de datos 

<rng:text/>
text
Valores The pattern should be expressed using the pattern syntax defined in Kay (ed.) (2007).
degree indicates the degree of precision to be assigned as a value between 0 (none) and 1 (optimally precise)
Estado Opcional
Tipo de datos 

<rng:ref name="data.probability"/>
data.probability
stdDeviation supplies a standard deviation associated with the value in question
Estado Opcional
Tipo de datos 

<rng:ref name="data.numeric"/>
data.numeric
Usado por
model.global.meta
Puede contener
core: desc gloss
tagdocs: altIdent equiv
Declaración 

<rng:element name="precision">
 <rng:ref name="att.global.attributes"/>
 <rng:optional>
  <rng:attribute name="target">
   <rng:list>
    <rng:oneOrMore>
     <rng:ref name="data.pointer"/>
    </rng:oneOrMore>
   </rng:list>
  </rng:attribute>
 </rng:optional>
 <rng:optional>
  <rng:attribute name="match">
   <rng:text/>
  </rng:attribute>
 </rng:optional>
 <rng:optional>
  <rng:attribute name="degree">
   <rng:ref name="data.probability"/>
  </rng:attribute>
 </rng:optional>
 <rng:optional>
  <rng:attribute name="stdDeviation">
   <rng:ref name="data.numeric"/>
  </rng:attribute>
 </rng:optional>
 <rng:zeroOrMore>
  <rng:ref name="model.glossLike"/>
 </rng:zeroOrMore>
</rng:element>
element precision
{
   att.global.attributes,
   attribute target { list { data.pointer+ } }?,
   attribute match { text }?,
   attribute degree { data.probability }?,
   attribute stdDeviation { data.numeric }?,
   model.glossLike*
}
Ejemplo
<date xml:id="date001" notBefore="0014" notAfter="0064">About 50
years after the death of Augustus</date>
<precision target="#date001" match="@notAfter" degree="0.3"/>
<precision target="#date001" match="@notBefore" degree="0.9"/>