|To:||doug@xxxxxxxxxx, "[ontolog-forum]" <ontolog-forum@xxxxxxxxxxxxxxxx>|
|From:||William Frank <williamf.frank@xxxxxxxxx>|
|Date:||Tue, 21 May 2013 16:05:56 -0400|
On Tue, May 21, 2013 at 2:55 PM, doug foxvog <doug@xxxxxxxxxx> wrote:--
And some relationships have an arity of one. Why are those represented with boxes and the rest of them with arcs???? (And, to go on, some have an arity of zero, but that is another matter).
In different terms, if 'links' are first class objects, why are they treated differenty depending on their arity?
If you treat all domain specific concepts as just that, fiirst class object, and make the differences, such as arities, later, and leave the links to represent the logical particles, you have a much simpler modeling language and an easier time of drawing everything you might want to draw, such as the features of the relations with an arity greater than 1. You can also make statements about these relations wihtout having to commit to the types of the entities they connect, you need only identify the roles as the connected entitties. (A perennial problem and time waster in concept modelling"). (In fact, they can then themselves have relations with other relations.
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