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RE: DC with RDF Modeling Questions

From: David Price <david.price@eurostep.com>
Date: Wed, 21 Jul 2004 10:44:21 +0100
To: <kurt.godden@gm.com>, <www-rdf-interest@w3.org>
Message-ID: <003201c46f07$4c8252c0$2101a8c0@esukpc20>
On:

 

Q3:  It seems to me that a part number is a version/edition/adaptation of an
engineering name, and thus it is reasonable to model the relationship with
dc:hasVersion, as in the following instance:

 

<EngineeringName rdf:about="12F/0100A">

       <dc:title> Body Control Module</dc:title>

      <dc:hasVersion> <rdf:Bag>  <rdf:li  PN1234 />  <rdf:li PN5678/>
</rdf:Bag></dc:hasVersion> </EngineeringName>

 

There are actually standard models for dealing with this idea. They work
along the lines of:

 

Figure 1 -  The concept of identification  

 

 

Cheers,

David

 

> -----Original Message-----

> From: www-rdf-interest-request@w3.org [mailto:www-rdf-interest-

> request@w3.org] On Behalf Of kurt.godden@gm.com

> Sent: 20 July 2004 17:07

> To: www-rdf-interest@w3.org

> Cc: kurt.godden@gm.com

> Subject: DC with RDF Modeling Questions

> 

> 

> I'm developing an RDF application, but I have some questions that I have

> not found in the W3C documentation, in case any kind soul feels like

> helping me.

> 

> It is clear that I should re-use existing ontologies whenever possible.

> Thus, I am using some of the Dublin Core elements/refinements, e.g. I'm

> using dc:title to hold the primary info of a class called

> "EngineeringName"

> that I'm using to encode a list of existing corporate terms.

> 

> Q1:  Should I still define any dc concepts in RDFS?  (I'm guessing 'yes',

> but it's not clear to me.)

> 

> Q2:  Is the use of QNames ok in the value of an rdf:ID attribute, as with

> the following 'dc:title', where I also have the appropriate namespace

> assignment to the prefix?

> 

> <rdf:Property rdf:ID="dc:title"/>          <--- Is 'dc:title' OK to use

> this way????  Should I use an entity instead of the prefix????

>      <rdfs:domain rdf:resource="#EngineeringName"/>

> </rdf:Property>

> 

> Separate topic:

> 

> Each engineering object, e.g. a body control module, gets realized in

> physical form as parts shipped from suppliers.  For a given engineering

> object, there may be more than one corresponding part number (e.g. PN 1234

> from supplier A and PN5678 from supplier B may both be functionally

> equivalent body control modules).  I want to have a pointer from the

> resource representing the engineering object to a bag of such part numbers

> that represent the physical realizations of that object.

> 

> Q3:  It seems to me that a part number is a version/edition/adaptation of

> an engineering name, and thus it is reasonable to model the relationship

> with dc:hasVersion, as in the following instance:

> 

> <EngineeringName rdf:about="12F/0100A">

>        <dc:title> Body Control Module</dc:title>

>       <dc:hasVersion> <rdf:Bag>  <rdf:li  PN1234 />  <rdf:li PN5678/>

> </rdf:Bag></dc:hasVersion>

> </EngineeringName>

> 

> Does this appear reasonable/correct to you?

> 

> Thanks, in advance.

> 

> 

> Kurt Godden

> GM Technical Fellow

> GM R&D, Warren, MI

> ph: 586-986-0445; em: kurt.godden@gm.com

> 

> "I distrust a research person who is always obviously busy on a task."

>    ---Robert A. Frosch, VP (retired), GM Research

> 

> 

 




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Received on Wednesday, 21 July 2004 05:45:04 UTC

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