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Re: OWL DL restriction clarification, please

From: Danny Ayers <danny666@virgilio.it>
Date: Thu, 10 Jun 2004 20:39:06 +0200
Message-ID: <40C8AACA.5040306@virgilio.it>
To: Benjamin Nowack <bnowack@appmosphere.com>
Cc: www-rdf-interest@w3.org

Benjamin Nowack wrote:

>On 10.06.2004 17:49:21, Danny Ayers wrote:
>  
>
>>Benjamin Nowack wrote:
>>
>>    
>>
>>>On 10.06.2004 13:37:41, Danny Ayers wrote:
>>>...
>>>      
>>>
>>>I think the specs are quite clear, the reference for example says:
>>>[[
>>>  "In OWL Lite and OWL DL, owl:Class must be used for all class 
>>>  descriptions"
>>>]]
>>> 
>>>      
>>>
>>But that doesn't exclude the use of rdfs:Class as well, nor does it 
>>explain *why*. In fact the very next point in the reference says:
>>    
>>
>I read, it _does_ exclude the use of rdfs:Class, for you would have
>a class description that used rdfs:Class then.
>  
>

Ok, my mistake, on re-reading I do get it that way. Earlier I read 
'class descriptions' as being the descriptions of the classes, which 
might include other characteristics such as other types.


>>>Did you already try your example on e.g. protege's OWL 
>>>plug-in? 
>>>
>>>      
>>>
>>Not yet, I shall (I've got it set up with RACER here).
>>    
>>
>hm, I just remember, I'm not sure if the owl plug-in allows the
>import of rdfs classes. but it's worth a try..
>  
>

No joy, but I can't be 100% sure the problem wasn't just my (fragile) 
install.

>cheerio to italy.
>  
>

grazie und guten abend,

Danny.



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Received on Thursday, 10 June 2004 14:52:38 GMT

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