Some clarification in terminology would help here :-). There is:
- an external DTD subset (in a file foo.dtd or xschema.dtd)
- an internal DTD subset (within [...] in the DOCTYPE)
- an external XSchema (in a file *.xsc)
- an internal XSchema [subset] within <XSC:*> elements
There are several concerns.
- should we allow DTD subsets and XSchemas to be mixed in a document
instance (whether delivered externally or internally)
- should we allow internal XSchemas (if so, should we use RDF notation)
- should we allow external XSchemas (I assume yes). If so, should they use
RDF?
- should we allow internal and external XSchemas to be mixed.
If we can agree on internalXSchema and externalXSchema then the questions
are clearer.
P.
Peter Murray-Rust, Director Virtual School of Molecular Sciences, domestic
net connection
VSMS http://www.nottingham.ac.uk/vsms, Virtual Hyperglossary
http://www.venus.co.uk/vhg