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Re: taxonomy for use case requirements

From: Jos De_Roo <jos.deroo@agfa.com>
Date: Thu, 8 Apr 2004 16:37:06 +0200
To: eric@w3.org
Cc: public-rdf-dawg@w3.org
Message-ID: <OF5B56874F.C0EDDDEE-ONC1256E70.0040FF54-C1256E70.00502042@agfa.com>

Eric wrote:
> During the last telecon, I suggested that we use terms from RDF Query
> and Rules Framework [1] to describe the requirements for each use
> case. The requirements could be layed out similarly to the language
> characteristics in the RDF Query Survey [2].
>
> I don't expect the framework to be complete, but I do expected that it
> will serve as a good starting point. We can argue about terms like
> disjunction in the abstract, or we can have them layed out in a
> document describing and constrasting them. Hopefully this can save us
> a little bit of tedium.

Concerning "disjunction" I tried a similar test case

given
:Xavier :worksAt :night.
:Xavier :worksIn :systemMaintenance.

and asking
{_:Y :worksIn :processControl} :or
{_:Y :worksIn :systemMaintenance; :worksAt :night}.

we got a direct answer
{:Xavier :worksIn :processControl} :or
{:Xavier :worksIn :systemMaintenance. :Xavier :worksAt :night}. 

and we just assume implications such as
?P => {?P :or ?Q}.
?Q => {?P :or ?Q}.
(but had to fix some "variable" issues
in the euler running code...)

Of course, posing 2 questions and merging
their answer graphs should also work.


> [1] http://www.w3.org/2001/11/13-RDF-Query-Rules/terms
> [2] http://www.w3.org/2001/11/13-RDF-Query-Rules/#summary

very interesting

> -- 
> -eric
>
> office: +81.466.49.1170 W3C, Keio Research Institute at SFC,
>                         Shonan Fujisawa Campus, Keio University,
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>                         JAPAN
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>
> (eric@w3.org)
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-- 
Jos De Roo, AGFA http://www.agfa.com/w3c/jdroo/
Received on Thursday, 8 April 2004 10:37:48 GMT

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