xml-dev - scalable DTDs.

[Paul Tchistopolskii <paul@qub.com>]

From:
"Structuring XML documents" by David Megginson. 
( Prentice Hall, 1998 ).

Page 279.

"... this idea becomes even more powerful if a set 
of DTDs is designed from the start to share a more 
detailed base architecture .... Base architectures 
could include models for book-oriented documents,
electronic commerce, technical specifications and 
many other applications. Since XML is very young,
there is a good opportunity right now to work 
with base architectures like these".

Since 2 years passed and XML is not that
young, could somebody please point me to any
example of 'base architecture' DTD ( or schema,
or whatever ) ?

Many thanks.

Rgds.Paul.

PS. I also like page 277:

"... every time you add new element types to DTD, 
the software will have to be modified or even entirely 
rewritten - otherwise, it might report an error, or worse,
produce unpredictable output".

Welcome to XSL ( which is 'or worse' ).

PPS. BTW , I think that the book is 'really good'. 
I think that this '3 years old'  book appears to be 
still 'up to date'.  ;-)

Not the case with many other XML books. 

Ah, right - the book is actually about SGML, that's why ;-)