equivalent of marked sections?

Hello,
I'm wondering if there is a mechanism in XML Schema similar to the
INCLUDE/IGNORE marked sections in DTD construction.

I am employing the 'salami slice' design in order to reuse (over 500)
component definitions, but I want certain attribute values to be required in
some document types and optional in others, while still having each
component be a valid schema in itself.  How might I go about this?

Thanks,
John

Received on Wednesday, 19 September 2001 18:04:11 UTC