<classSpec ident="att.evidence" module="MEI.shared" type="atts">
<desc>Attributes describing the support for and the certainty of an assertion.</desc>
<attList org="group">
<attDef ident="cert" usage="opt">
<desc>Signifies the degree of certainty or precision associated with a feature.</desc>
</attDef>
<attDef ident="evidence" usage="opt">
<desc>Indicates the nature of the evidence supporting the reliability or accuracy of the
intervention or interpretation.</desc>
<datatype maxOccurs="1" minOccurs="1">
<rng:data type="NMTOKEN"/>
</datatype>
<valList type="semi">
<valItem ident="internal">
<desc>There is evidence within the document to support the intervention.</desc>
</valItem>
<valItem ident="external">
<desc>There is evidence outside the document to support the intervention.</desc>
</valItem>
<valItem ident="conjecture">
<desc>The assertion has been made by the editor, cataloguer, or scholar on the basis of
their expertise.</desc>
</valItem>
</valList>
</attDef>
</attList>
</classSpec>