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Re: RDF 1.1 - Skolem IRI

From: Pat Hayes <phayes@ihmc.us>
Date: Fri, 31 May 2013 10:27:48 -0500
Cc: <public-rdf-comments@w3.org>
Message-Id: <862FABA8-4A25-4A02-9736-514DF06960C7@ihmc.us>
To: "Hans Teijgeler" <hans.teijgeler@quicknet.nl>

On May 31, 2013, at 4:13 AM, Hans Teijgeler wrote:

> Good morning,
>  
> We use http://www.w3.org/TR/swbp-n-aryRelations/#useCase3 throughout.
>  
> Are you saying that Purchase_1  in the shown code:
> :Purchase_1
>       a       :Purchase ;
>       :has_buyer :John ;
>       :has_object :Lenny_The_Lion ;
>       :has_purpose :Birthday_Gift ;
>       :has_amount 15 ;
> 
>       :has_seller :books.example.com .
> shall have a Skolem IRI? If so, why for Pete's sake?

No. The purpose of the skolemization is to rpelace blank nodes by IRIs, because some systems and applications prefer to do so. The well-known/genid meachanism is to allow these blank-node-replacements to be recognized and distinguished from other IRIs. None of this is in any way compulsory or even recommended: it is simply there as a convenience for those who need it. 

>  
> And if so, must we really waste storage space by adding .well-known/genid/  to those IRI's?
>  
> Regards,
> Hans
>  
> OntoConsult,
> Hans Teijgeler,
> Laanweg 28,
> 1871 BJ Schoorl,
> Netherlands
> www.15926.org

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Received on Friday, 31 May 2013 15:28:16 UTC

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