W3C home > Mailing lists > Public > www-rdf-interest@w3.org > November 2004

Re: newbie modelling question

From: Danny Ayers <danny.ayers@gmail.com>
Date: Tue, 30 Nov 2004 20:07:59 +0100
Message-ID: <1f2ed5cd0411301107352678c4@mail.gmail.com>
To: "paul.downey@bt.com" <paul.downey@bt.com>
Cc: tpassin@comcast.net, www-rdf-interest@w3.org

On Tue, 30 Nov 2004 16:59:38 -0000, paul.downey@bt.com
<paul.downey@bt.com> wrote:

> Hmm .. i guess this is basically a relational 'join' table
> where the URIs become the unique key pairs. i'll have a crack
> at that approach, thx Tom!

Don't forget the open world assumption though - given:

"Joe Bloggs represented BT on the FooSpec but took the
yankee dollar and worked for Microsoft on the BarSpec."

you could end up with:

Joe Bloggs worksFor BT
AND
Joe Bloggs worksFor MS

Which could be not only RDF-possible but also (potentially) real-world
possible, though not reflect the actual situation.

Cheap way around it might be to have a property, workedForButNoMore,
so that your end application could discount all corresponding ex-jobs.

Cheers,
Danny.



-- 

http://dannyayers.com
Received on Tuesday, 30 November 2004 19:08:00 UTC

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