<xs:enumeration value="ET"/>
<xs:enumeration value="EX"/>
I plan to create an XML Schema that uses human-friendly terms:
<xs:enumeration value="entry point"/>
<xs:enumeration value="exit point"/>
Having read, the discussion so far within this thread (except that, I don't know much about genericode), I think you should use following,
<xs:enumeration value="ET"/>
<xs:enumeration value="EX"/>
and could add corresponding xs:annotation within xs:enumeration for any documentation within the schema.