[Versa] Versa issue: drawing the line on entailments

[Michael Olson]

I agree 100%.

I think we remove all other mention of entailment from the  
specification.

Mike

On Aug 12, 2005, at 6:26 PM, Uche Ogbuji wrote:

> Well, Mike opened the door, so I guess I'll just have to heave through
> with my huge catalog of open Versa issues.
>
> First one: a while back Chime wondered what sort of entailments Versa
> should sanction at the language level.  His message:
>
> http://lists.fourthought.com/pipermail/ril/2004-September/000354.html
>
> We should have a proper answer to this in the spec.  Right now 4Suite's
> implementation does rdf:type inferencing, as he says, but I've always
> been willing to separate the query language from such matters.  My
> suggestion is that we state that Versa does not require any entailment
> within an RDF model, but that a back end is free to do so.  Sure this
> means that Versa results can different between back ends, but I think
> that what inferences an implementation handles for the user is a
> separate issue to document.
>
>
> --  
> Uche Ogbuji                               Fourthought, Inc.
> http://uche.ogbuji.net                    http://fourthought.com
> http://copia.ogbuji.net                   http://4Suite.org
> Use CSS to display XML, part 2 -  
> http://www-128.ibm.com/developerworks/edu/x-dw-x-xmlcss2-i.html
> XML Output with 4Suite & Amara -  
> http://www.xml.com/pub/a/2005/04/20/py-xml.html
> Use XSLT to prepare XML for import into OpenOffice Calc -  
> http://www.ibm.com/developerworks/xml/library/x-oocalc/
> Schema standardization for top-down semantic transparency -  
> http://www-128.ibm.com/developerworks/xml/library/x-think31.html
>
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Mike Olson                                                Principal  
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Fourthought, Inc.                                       
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