XML schema interop problems

Hi,

I am interesting to see the following topics discussed at the User
Experiences workshop held on 21-22 June 2005 in Redwood Shores.

    * interoperability problems
- presence of minOccurs/maxOccurs on the top-level elements infringing
the XML Schema
- missing empty elements in the XML instances hinders the use of XML
Schema
- presence of additional undeclared elements in the XML instances
hinders the use of XML Schema

    * features missing in XML Schema 1.0?
- it should be possible to define a behaviour for additional or missing
elements that will not invalidate the schema. Current solution is not good
enough.
- healthy concept for versioning and extensions
- mustIgnore/mustUnderstand rules
- discourage/prohibit references to the elements, leaving the references
only to the types

regards,
Vladislav

Disclaimer: this e-mail represents my personal opinion, I am not speaking on
behalf of my employer.

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