<attRef>

<attRef> (attribute pointer) points to the definition of an attribute or group of attributes.
Moduletagdocs — 22 Documentation Elements
AttributesIn addition to global attributes
namethe name of the pattern defining the attribute(s)
Status Required
Datatype 
data.word
Used byattList
May containEmpty element
Declaration
element attRef { att.global.attributes, attribute name { data.word }, empty }
Example
<attRef name="att.global.attribute.xml:id"/>