eml-project.xsd has a DescriptorType. Since it is not (?) used anywhere in
this file, I'm guessing it's not used in eml, and should be dropped.
Updated by David Blankman about 21 years ago
The DescriptorType represents a suggested list for descriptor or theme systems.
It should, I am pretty sure, be the type of the descriptor's name attribute.
Current: <xs:attribute name="name" type="xs:string"
What it should be: <xs:attribute name="name" type="DescriptorType"