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RE: RDF 1.1 - Skolem IRI

From: Hans Teijgeler <hans.teijgeler@quicknet.nl>
Date: Fri, 31 May 2013 12:27:19 +0200
To: <public-rdf-comments@w3.org>
Message-ID: <F7DE25DEBAA741FEA6306252D63C4291@HansPC>
Good afternoon,
 
Perhaps it is useful to show one example of a standardized ISO 15926
"template":
 
<p7tpl:ClassOfAssemblyDefinition
rdf:ID="T220df765-e55f-11e1-aff1-0800200c9a66">
    <rdf:type rdf:resource="&owl;Thing"/>
    <p7tpl:hasUrClassOfWhole
rdf:resource="#Cd3cbfad0-e53a-11e1-aff1-0800200c9a66"/>
    <p7tpl:hasClassOfWhole
rdf:resource="#C220df766-e55f-11e1-aff1-0800200c9a66"/>
    <p7tpl:hasUrClassOfPart
rdf:resource="#Cd3cbfada-e53a-11e1-aff1-0800200c9a66"/>
    <p7tpl:hasClassOfPart
rdf:resource="#C220df767-e55f-11e1-aff1-0800200c9a66"/> 
    <p7tpl:hasCardinalityOfWhole
rdf:resource="&xyzrdl;Ce269fc70-678a-11e1-b86c-0800200c9a66"/>
    <p7tpl:hasCardinalityOfPart
rdf:resource="&xyzrdl;Ce269fc71-678a-11e1-b86c-0800200c9a66"/>
    <p7tpl:annRecordCreated
rdf:datatype="&xsd;dateTime">2013-02-08T16:19:00Z</p7tpl:annRecordCreated>
</p7tpl:ClassOfAssemblyDefinition>
 
That template is an owl:Class and has been defined in OWL with onProperty
plus onClass or onDataRange.
 
The URI of this template instance is simply the base-URI#ID. 
 
That also holds for all declared objects, like above-mentioned UrClass:
<dm:ClassOfInanimatePhysicalObject
rdf:ID="Cd3cbfad0-e53a-11e1-aff1-0800200c9a66"> <!-- UrClass -->

    <rdf:type rdf:resource="&owl;Class"/>

    <rdfs:subClassOf rdf:resource="&rdl;RDS6809993"/> <!-- Piping System -->

    <rdfs:label>B14-RZ17803-3"</rdfs:label>

    <meta:annRecordCreated
rdf:datatype="&xsd;dateTime">2013-02-08T16:19:00Z</meta:annRecordCreated>

</dm:ClassOfInanimatePhysicalObject>
The entire RDF data set consists of such declared objects and information
about them in the form of these templates.
 
Do we still have to extend that base-URI with .well-known/genid/ ?  Mind
you, this will be used for lifecycle information integration of a facility
(e.g. oil refinery) over 50 years or so, so petabybes of triples, ALL having
this .well-known/genid/ in their URIs.
 
Regards,
Hans
 
Hans Teijgeler,
Laanweg 28,
1871 BJ Schoorl,
Netherlands
 <http://www.mnei.nl/> www.mnei.nl

  _____  

From: Hans Teijgeler [mailto:hans.teijgeler@quicknet.nl] 
Sent: vrijdag 31 mei 2013 11:14
To: 'public-rdf-comments@w3.org'
Subject: RDF 1.1 - Skolem IRI


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?
 
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
 <http://www.15926.org> www.15926.org
Received on Friday, 31 May 2013 10:27:47 UTC

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