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RE: Data models as constraints

From: Gerd Wagner <wagnerg@tu-cottbus.de>
Date: Tue, 16 Jan 2007 17:56:24 +0100
To: 'Hassan At-Kaci' <hak@ilog.com>
Cc: "'W3C RIF WG'" <public-rif-wg@w3.org>
Message-ID: <001c01c7398f$41817c20$a2ca2b8d@informatik.tucottbus.de>

> Thanks for your comment on my paper: you must be the fastest reader
> that I have come across in my life! ;-)

In fact, I'm not a fast reader at all, of course, I just managed to
browse through your paper.
 
> Re. your comment, I must say thay I do not quite understand what it
> has to do with either the topic of the article, nor  what it means.
> What I wrote about is simple: because CLP makes rules and constraints
> orthogonal, it offers a way to use rules over arbitrary data models
> - not just data and FOTs. I then focused on the OSF and DL formalisms
> seen as constraint systems for objects and inheritance. The nature of
> the rules is *not* important and may be of all kinds including Horn,
> (with or without negations or all kinds), Production, YouNameIt, ...

OK, but you don't discuss that in your paper, do you?
 
> > How can you capture SQL, Prolog and production rules
> > without supporting NaF?
> 
> Again the focus of my paper is *NOT* on the rules but (as the title
> states it clearly) about *data models as constraint systems*.
> 
> Also, the nature of the paper is that of a (semi-formal) tutorial
> - not an exhaustive survey about all known or possible ways to
> conjugate rules and data. Perhaps you should write such an article?
> :-)

Come on, you are the expert here, not me!
 
> This notwithstanding, the way negation is handled for OSF terms (see
> Section 3.1.5) implicitly uses a CWA on the set of sort. I admit that
> I should make this fact clear.

...

> At any rate, I am sorry that you find my work of debatable interest
> for your needs, and I apologize for disappointing your expectations.

Your paper is clearly of high value as a publication, but for my
purposes I'd prefer to see a more RIF-focused version of it. 

-Gerd
Received on Tuesday, 16 January 2007 16:56:32 GMT

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