W3C home > Mailing lists > Public > public-rif-wg@w3.org > March 2006

RE: An unfortunate side-effect

From: Gerd Wagner <wagnerg@tu-cottbus.de>
Date: Thu, 9 Mar 2006 20:52:43 +0100
To: "'Francis McCabe'" <frankmccabe@mac.com>, <public-rif-wg@w3.org>
Message-ID: <003501c643b3$07b865d0$55032b8d@TMGWAGNER>

> As a straw man (YASM) one could imagine something like:
> <ruleset language="prolog" variant="ISO" topic="ancestor">
>    ancestor(X,Y) :- parent(X,Y).
>    ancestor(X,Z) :- parent(X,Y), ancestor(Y,Z).
> </ruleset>
> This would allow meta-tools to process rulesets and decide for  
> themselves whether to handle a given ruleset without trying to  
> actually parse the ruleset first. I think that this could be quite  
> useful in many cases of ruleset integration, but would not address  
> the semantic interoperability issues.

In any case, this seems to be a useful fall-back solution for
those cases where someone cannot (or does not want to) use the 
RIF for a complete mark-up. In UML this concept is called 
"Opaque Expression", and it is also employed in PRR. 

Received on Thursday, 9 March 2006 19:55:52 UTC

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