When appropriate, values from an established typology should be used.
<classSpec rend="add" ident="att.typed" module="MEI.shared" type="atts">
<desc xml:lang="en">Attributes which can be used to classify features.</desc>
<classes>
</classes>
<attList>
<attDef ident="type" usage="opt">
<desc xml:lang="en">Designation which characterizes the element in some sense, using any convenient
classification scheme or typology that employs single-token labels.</desc>
<datatype maxOccurs="unbounded">
<rng:data type="NMTOKEN"/>
</datatype>
</attDef>
</attList>
<remarks xml:lang="en">
<p>When appropriate, values from an established typology should be used.</p>
</remarks>
</classSpec>