Re: OWL vs RDF

HI Adrian & all,

yes, I can see your point and indeed, if a rule system was around, it
may do the trick in simple cases. Another (non-exclusive) approach is
what I briefly mentioned at the F2F: is the development of a kind of an
intermediate layer between RDFS and OWL; a layer that would allow some
extra information to be added to the knowledge base without forcing the
usage of a DL reasoner. There are several approaches for this, and we (I
mean, W3C) may want to look into this more closely next year...

Ivan

Adrian Walker wrote:
> Hi Ivan, Kerstin & All --
> 
> A quick thought about "you are a perfectly decent Semantic Web citizen
> even if you do not use OWL".
> 
> We have found that, even in rather simple cases, it's quite hard for a
> programmer to check that inferences over RDF are producing correct results.
> 
> An approach that we have found useful is to reason over RDF using rules
> in executable, open vocabulary English.
> 
> With this extra English semantics attached, we can have the system
> explain, in English, at the business or scientific level, how it derived
> a result.
> 
> There's  a simple example at
> 
>     
> https://www.reengineeringllc.com/demo_agents/RDFQueryLangComparison1.agent
> 
> You can view, edit, and run the example (and others) by pointing a
> browser to reengineeringllc.com <http://reengineeringllc.com> and
> selecting the example RDFQueryLangComparison1 .
> 
> HTH,  -- Adrian
> 
>                   
> Internet Business Logic (R)
> Executable open vocabulary English
> Online at www.reengineeringllc.com <http://www.reengineeringllc.com>
> Shared use is free
> 
> Adrian Walker
> Reengineering
> Phone: USA 860 830 2085
> 
> 

-- 

Ivan Herman, W3C Semantic Web Activity Lead
URL: http://www.w3.org/People/Ivan/
PGP Key: http://www.cwi.nl/%7Eivan/AboutMe/pgpkey.html
FOAF: http://www.ivan-herman.net/foaf.rdf