<xs:simpleType name="MarkingMethodEnumType"><xs:annotation><xs:documentation>The MarkingMethodEnumType enumerates values that describe commonly used methods of making a marking.</xs:documentation></xs:annotation><xs:restriction base="xs:NMTOKEN"><xs:enumeration value="PAINT"/><xs:enumeration value="STAIN"/><xs:enumeration value="ENSCRIBE"/><xs:enumeration value="EMBOSS"/></xs:restriction></xs:simpleType>