> Part of our evaluation is confirming that any xml or binary data that
> can be embedded in an mdWrap is compatible with the METS schema.
> Usually this is not a problem, but there have been past issues with
> XML schema incompatabilities.
I consider that a clarification would be welcome here. Could you provide a
link or otherwise refer to or describe which past issues were related to
XML schema incompatibilities?
Let's notice that the contents of the xml.xsd file referred to in the
@schemaLocation attribute on the xs:import element in this documentation
is different from the w3c's (most recent) xml.xsd file available from
http://www.w3.org/2001/xml.xsd particularily when it comes to the fact
that the @xml:id attribute is included in the specialAttrs
xs:attributeGroup in the w3c's version of xml.xsd whereas it is not in
LoC's version of this file. I consider that any decision to diverge from
the w3c on this point would need to be motivated and clearly documented.