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Re: ODM document -- n-ary relations

From: Natasha Noy <noy@SMI.Stanford.EDU>
Date: Wed, 9 Feb 2005 16:38:33 -0800
Message-Id: <02bf53742e7ea03f7b5403f81a7f9236@smi.stanford.edu>
Cc: swbp <public-swbp-wg@w3.org>
To: "Elisa F. Kendall" <ekendall@sandsoft.com>

Thanks, Elisa. I'll try to look at the other sections, but can't 
promise at the moment.

On the n-ary part however, some clarification would be appreciated. 
I've since had some communication with Evan and I think he has concerns 
about that that part as well. Perhaps, a quick discussion at the 
tomorrow's telecon would be worthwhile.

Natasha

On Feb 9, 2005, at 2:00 PM, Elisa F. Kendall wrote:

>
> Hi Natasha,
>
> I'll check with Bob Colomb, DSTC, on his intent there.  What you are 
> looking at in that particular
> diagram is what's called an "association class", which allows you to 
> add structural information
> to an association.  The dashed line from the center of the "enrolled" 
> property to the box below it
> is a kind of dependency, that connects the association class to the 
> association.  We didn't use this
> later in the specification, and as a few others who reviewed this 
> section have pointed out, it needs
> alignment with the implementation described in the RDFS and OWL 
> Metamodel sections of the
> document.  We would really appreciate it if you have time to take a 
> look at those sections as well,
> primarily chapters 11, 12 and 16.  If you are not familiar with UML 2, 
> reviewing the mapping,
> which is presented in chapter 18, would be difficult at best.
>
> Thanks,
>
> Elisa
>
>
> Natasha Noy wrote:
>
>>
>> Jeremy has asked me to look at the small piece of the ODM document 
>> that deals with n-ary relations (bottom of page 68-top of page 69).  
>> It looks fine to me, except for the last property in the OWL 
>> fragment: why is there a property that goes from enrolled to 
>> enrolled? Am I missing something?
>>
>> Natasha
>>
>>
>>
>
>
>
Received on Thursday, 10 February 2005 00:38:39 GMT

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