W3C home > Mailing lists > Public > semantic-web@w3.org > January 2010

Re: Alternatives to containers/collections (was Re: Requirements for a possible "RDF 2.0")

From: Pat Hayes <phayes@ihmc.us>
Date: Fri, 15 Jan 2010 15:31:06 -0600
Cc: "Semantic Web" <semantic-web@w3.org>, "Jeremy Carroll" <jeremy@topquadrant.com>
Message-Id: <066025C1-6428-4374-A5B3-658E8D98A56F@ihmc.us>
To: "Michael Schneider" <schneid@fzi.de>

On Jan 15, 2010, at 3:23 PM, Michael Schneider wrote:

> Pat Hayes wrote:
>
>> +1. We have to be very careful about what exactly "optional" is
>> supposed to mean in a standard whose intention is to support
>> interoperability. If every processor is obliged to be able to process
>> it, its not optional. If they aren't, then interopreability is
>> compromised.
>>
>> Pat
>
> If only things would always melt down to such a simple formula...

Well, simple rules are sometimes good guides to behavior. I take it  
that you would prefer the much more complicated advice, to let it all  
hang out.

>
> Maybe we should deprecate the "MAY" word from RFC 2119?

The point of MAY is not to licence options, but to delineate the  
boundaries of what everyone has to agree is permitted. LIke I say, if  
its permitted, and if that means that your engine has to be able to  
cope with it somehow, then its not optional . If everyone MAY use one  
of three syntaxes, and it says so in the spec, then every engine is  
OBLIGED to be able to process all three of them. If the choice of  
syntax is simply optional, then we will have three incompatible  
communities, or the kind of chaos that we have now for RDF syntax.

Pat

>
> SCNR,
> Michael
>
> --
> Dipl.-Inform. Michael Schneider
> Research Scientist, Information Process Engineering (IPE)
> Tel  : +49-721-9654-726
> Fax  : +49-721-9654-727
> Email: michael.schneider@fzi.de
> WWW  : http://www.fzi.de/michael.schneider
> = 
> ======================================================================
> FZI Forschungszentrum Informatik an der Universität Karlsruhe
> Haid-und-Neu-Str. 10-14, D-76131 Karlsruhe
> Tel.: +49-721-9654-0, Fax: +49-721-9654-959
> Stiftung des bürgerlichen Rechts, Az 14-0563.1, RP Karlsruhe
> Vorstand: Prof. Dr.-Ing. Rüdiger Dillmann, Dipl. Wi.-Ing. Michael  
> Flor,
> Prof. Dr. Dr. h.c. Wolffried Stucky, Prof. Dr. Rudi Studer
> Vorsitzender des Kuratoriums: Ministerialdirigent Günther Leßnerkraus
> = 
> ======================================================================
>

------------------------------------------------------------
IHMC                                     (850)434 8903 or (650)494 3973
40 South Alcaniz St.           (850)202 4416   office
Pensacola                            (850)202 4440   fax
FL 32502                              (850)291 0667   mobile
phayesAT-SIGNihmc.us       http://www.ihmc.us/users/phayes
Received on Friday, 15 January 2010 21:31:41 UTC

This archive was generated by hypermail 2.4.0 : Friday, 17 January 2020 19:48:05 UTC