• From: Uche Ogbuji <uche.ogbuji@f...>
• To: Bob DuCharme <bob@u...>
• Date: Mon, 21 May 2001 14:48:39 -0600 (MDT)

> > One of the reasons I work so much with XML and RDF is that they are *more*
> > abstract than OO, and allow OO modeling as well as other forms, all of
> > which, on aggregate, are far more expressive than OO.
>
> Just for some context, could you name some of these other forms you refer
> to?

From an earlier comment of mine on the topic

http://lists.xml.org/archives/xml-dev/200012/msg00609.html

"Like it or not, there are many more useful classification relationships
than just interface inheritance and implementation-sharing.  There are
aggregation, interface inheritance, implementation inheritance,
delegation, environmental acquisition, and others that I can't remember
off-head."

There is also subtyping to dig anouther one out of my head.  And those are
just classification relationships, one small niche of relationships
overall.


-- 
Uche Ogbuji                               Principal Consultant
uche.ogbuji@f...               +1 303 583 9900 x 101
Fourthought, Inc.                         http://Fourthought.com
4735 East Walnut St, Ste. C, Boulder, CO 80301-2537, USA
Software-engineering, knowledge-management, XML, CORBA, Linux, Python

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