Re: [ubl-ndrsc] XML and Polymorphism

[Eduardo Gutentag <eduardo.gutentag@sun.com>]

On Thu, 2003-02-27 at 20:09, Eve L. Maler wrote:
> Not having been on the call this week (sorry), I have what is, no doubt, 
> a dumb question.  Does "polymorphism" here mean the ability of an 
> element to be bound to two *unrelated* types at one time (something XSD 
> doesn't really allow), or the notion that Arofan/Eduardo introduced at 
> XML 2002,
Actually we didn't introduce it - we were trying to explain it; the 
first to use it in this context (ptp) was Matthew way before XML2002.

>  which is more like "Elements can be understood in terms of 
> their explicitly bound type and also as any ancestor thereof"?  The 
> latter will not be understood by most people as polymorphism, I believe. 
>   It's just inheritance.
> 
> 	Eve
> 
> Matthew Gertner wrote:
> > All,
> > 
> > I haven't been particularly successful in my search for an accessible
> > description of polymorphism in XML. This may be partly because my
> > googling (tm) led me quickly to this link:
> > 
> > http://xml.coverpages.org/arch-inherit.html
> > 
> > ...which I spent the next hour reading. Yes, there truly are people on
> > this planet who write even longer and more turgid mails than I do! I
> > wouldn't recommend that anyone go within 10 miles of this link, unless
> > they have an intense interest in the philosophical history of XML
> > inheritance circa 1998. The thread does end with an interesting post by
> > our very own TC Chair which might be the first official announcement
> > ever of the existence of a W3C XML Schema effort.
> > 
> > I also rediscovered the existence of a paper by Matt Fuchs entitled
> > "Role of an Extensible, Polymorphic Schema Language for Electronic
> > Commerce Communities", which could be useful. I am somewhat familiar
> > with the paper since he presented it right before my talk at XML 2000,
> > and I remember being annoyed that the room immediately emptied
> > (presumably because everyone was too intimated to sit through a talk
> > with the word "polymorphic" in the title). Unfortunately I couldn't find
> > the full text of this paper anywhere. Does anyone know someone at the
> > GCA who could give it to us with permission for reuse and/or who knows
> > where Dr. Matt is and how he can be contacted?
> > 
> > Otherwise I'll just have to write something myself.
> > 
> > Cheers,
> > Matt
> > 
> > 
> > ----------------------------------------------------------------
> > To subscribe or unsubscribe from this elist use the subscription
> > manager: <http://lists.oasis-open.org/ob/adm.pl>
> > 
-- 
Eduardo Gutentag               |         e-mail: eduardo.gutentag@Sun.COM
Web Technologies and Standards |         Phone:  +1 510 550 4616 x31442
Sun Microsystems Inc.          |         1800 Harrison St. Oakland, CA 94612
W3C AC Rep / OASIS TAB Chair