W3C home > Mailing lists > Public > w3c-rdfcore-wg@w3.org > November 2001

Re: Proposal to drop S from consideration

From: Dan Connolly <connolly@w3.org>
Date: Mon, 26 Nov 2001 08:36:22 -0600
To: Jeremy Carroll <jjc@hplb.hpl.hp.com>
Cc: Patrick.Stickler@nokia.com, w3c-rdfcore-wg@w3.org
Message-id: <3C025366.5010806@w3.org>
Jeremy Carroll wrote:

> I feel Patrick has raised some legimate issues here.
> Principally, I understand his message as a vote in the "cannot live with"
> category against S; with a coherent explanantion of why: backward
> compatibility.

All of my code and all of the code I've seen from other apps
assumes that the object of
is a string of 3 characters. S is completely backwards
compatible with this.

> An additional aspect that has come up on WOW is that S is not consistent
> with standard XML usage in which strings are implicitly type converted as
> necessary e.g.
> <record>
>   <name>Fred</name>
>   <age>40</age>
> </record>

Note that it'sn not the XML parser that type converts "40", but
the application that knows about <age>. The analagous situation
in RDF is: the object of <age> is a string, and the range
of the age property is a numeral, not a number. [this
is the case in S]

> I, too, feel much more confortable with P, with some additional typing
> mechanism, such as that suggested by Patrick.
>>     SUBJ PRED _:OBJ .
>>     _:OBJ rdf:value "LIT" .
>>     _:OBJ rdf:type TYPE .
>>     SUBJ PRED "LIT" .
>>     PRED rdfs:range TYPE .
> I am increasingly concerned about how many changes we feel entitled to make
> under our charter.

You see S as a change? I don't. It's the way I've read
the RDF spec since 1997 or so.


 I agree with Patrick that S is explicitly out of scope
> according to our current charter. I am concerned that the chair is taking an
> increasingly broad view of what changes we may make.
> However, I have not strongly objected to S, and continue to not do so, on
> the understanding  that we were explicitly permitting our datatyping
> discussions to go out of charter. i.e. I believe our intent was to make the
> *right* decision on datatyping, and then, if that decision was not one we
> could make within our charter we would seek a modification of our charter.
> I do not think that S is the right decision, but, apparantly unlike Patrick,
> I think I can live with it.
> Jeremy

Dan Connolly, W3C http://www.w3.org/People/Connolly/
Received on Monday, 26 November 2001 09:36:24 UTC

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