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Re: [RIF-Abridge PS] ACTION-569

From: Chris Welty <cawelty@gmail.com>
Date: Tue, 02 Sep 2008 08:49:34 -0400
Message-ID: <48BD365E.60301@gmail.com>
To: "Boley, Harold" <Harold.Boley@nrc-cnrc.gc.ca>
CC: Hassan Ait-Kaci <hak@ilog.com>, Adrian Paschke <adrian.paschke@biotec.tu-dresden.de>, public-rif-wg@w3.org

Let me make something clear:

The EBNF for the presentation syntax in BLD is NOT NORMATIVE.  It is not 
normative because it is *horrible* and we could not get the working group to 
accept it.  However, no one was willing to propose a better alternative 
(including Hassan), everyone just criticized it.

"Not normative" means, to me, that the presentation syntax is not a sanctioned 
way to express and exchange rules in BLD.  It is solely for the purposes of 
expressing the semantics.

However, it is clear (and has always been) that people will benefit from having 
a reasonable presentation (non-XML) syntax to write BLD rules in, and equally 
clear that such a syntax would benefit from some tooling, as Hassan is 
proposing.  So, I consider the matter of the presentation syntax serialization - 
the nuts&bolts of the syntax including delimiters, the actual characters used, 
so-called shortcuts, etc., to be a matter still open for discussion and I would 
simply *love* for someone to take the time to specify one that is usable and 
acceptable to the group.  The APS is a great start along these lines.  If done 
right, it could be included back into the spec as normative.


Boley, Harold wrote:
> Hi Hassan,
> In the 26 Aug telecon we only decided to create a page for the *abridged* syntax.
> Cf. ACTION: http://www.w3.org/2005/rules/wg/track/actions/569
> * The APS is not normative but just a compact notation,
> which should become dialect-independent,
> as needed, e.g., for UCR and the test cases.
> * The APS is an optional addition only.
> * The APS evolution can thus follow a different time-line,
> so should be decoupled from the evolution of the other documents.
> The PS, on the other hand, is an official part of documents such as BLD (in LC),
> FLD, and Core. Each of these documents should stay independent from APS.
> Best,
> Harold
> ________________________________
> From: public-rif-wg-request@w3.org [mailto:public-rif-wg-request@w3.org] On Behalf Of Hassan Ait-Kaci
> Sent: September 1, 2008 9:13 AM
> To: Adrian Paschke; public-rif-wg@w3.org
> Subject: RE: [RIF-Abridge PS] ACTION-569 
> Hi Adrian,
> Thanks for creating this page. Why not also include *all* PS syntactic rules
> and conventions, whether abridged or not, explicitly including all the rules
> imported from other W3C WG's documents (as used by Axel's EBNF rules for the
> APS)? It'd be nice not to have to go back and forth between 4 or 5 documents
> in order to have the whole picture.
> Thank you.
> -hak
> --
> Hassan At-Kaci  *  ILOG, Inc. - Product Division R&D
> http://koala.ilog.fr/wiki/bin/view/Main/HassanAitKaci
> -----Original Message-----
> From: public-rif-wg-request@w3.org on behalf of Adrian Paschke
> Sent: Mon 9/1/2008 11:01 AM
> To: public-rif-wg@w3.org
> Subject: [RIF-Abridge PS] ACTION-569
> I have created a page to document the abridged presentation syntax
> http://www.w3.org/2005/rules/wiki/APS
> - Adrian

Dr. Christopher A. Welty                    IBM Watson Research Center
+1.914.784.7055                             19 Skyline Dr.
cawelty@gmail.com                           Hawthorne, NY 10532
Received on Tuesday, 2 September 2008 12:50:19 UTC

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