[osis-core] Extending the Schema

[Patrick Durusau]

Todd,

Several posts ago you mentioned needing to extend the OSIS schema. What 
sort of extension were you trying to perform?

We can extend the present schema by appending elements to existing 
content models or adding attributes. Can also do union and restriction 
of simple types but I suspect that is not what you are after. With the 
substitution group we can replace the entire content model but that 
would require a complete re-write of the schema, and not to mention, 
inconsistent extension of it. Not necessarily saying no, but would like 
to know what sort of extensions are needed before picing a final route.

Hope you are having a great day!

Patrick

-- 
Patrick Durusau
Director of Research and Development
Society of Biblical Literature
Patrick.Durusau@sbl-site.org
Co-Editor, ISO 13250, Topic Maps -- Reference Model