Resource Description Format and XML-Data
W. Eliot Kimber
eliot at isogen.com
Thu Jan 29 18:57:06 GMT 1998
At 01:18 PM 1/29/98 -0500, David Durand wrote:
> On the other hand, it does no good to overplay your cards. Eliot's
>assertion that extended DTD syntaxes will _never_ solve the semantics
>problems is over-stated in two ways.
Good point. I didn't mean to imply that the problem can't be solved within
defined constraints, only that it is, in the general case, unsolvable *by a
single specification*. Certainly within defined scopes we can and will do
all sorts of very useful things, and the XML Data spec is probably a good
example of that.
I mostly don't want people to underestimate the scope and implications of
the problems. There are also non-obvious pitfalls, such as the EDD trap.
There are also a wide variety of potential candidates as methodologies and
off-the-shelf technologies. It will not be possible to sort these out and
arrive any sort of wide-scope consensus in a short period of time. Trying
to define a single schema specification language that satisfies all the
requirements looks to me like the document analysis project from Hell.
That said, I think people should start hammering out schema mechanisms as
fast as they can--the more ideas the better. But I think it would be
irresponsible for the W3C or any other standardizing body to embrace any
particular proposal too quickly. If, for example, XML Data is a good idea,
let it prove it in the marketplace before trying to give it the W3C seal of
approval. That's all I'm asking for.
W. Eliot Kimber, Senior Consulting SGML Engineer
Highland Consulting, a division of ISOGEN International Corp.
2200 N. Lamar St., Suite 230, Dallas, TX 95202. 214.953.0004
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