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Re: Subtyping in XML


Re:  Subtyping in XML
"Bullard, Claude L (Len)" <clbullar@i...> writes:

> How does one make an abstract type "generous"?

Judicious use of wildcards and/or elements with ur-type so they can be 
substituion group heads w/o much constraint.

> Serious question because of one design I've 
> worked on that insists on a primary schema 
> with derived secondary schemas.  To me the 
> term "generous" resonates with what is to 
> be achieved in that design, so I would like 
> to understand you more formally.

Understood -- I wish I could say something more formally.

ht
-- 
  Henry S. Thompson, HCRC Language Technology Group, University of Edinburgh
          W3C Fellow 1999--2002, part-time member of W3C Team
     2 Buccleuch Place, Edinburgh EH8 9LW, SCOTLAND -- (44) 131 650-4440
	    Fax: (44) 131 650-4587, e-mail: ht@c...
		     URL: http://www.ltg.ed.ac.uk/~ht/
 [mail really from me _always_ has this .sig -- mail without it is forged spam]

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