Re: [ontolog-forum] Representing models in ontologies.

[Juan de Nadie <juandenavas@xxxxxxxxx>]

Hi David.

Thanks for the answer.

I agree about the "Ferrari 458 Italia" to be treated as a specialization of "sports car". Seems resonable to me too.

But, i guess that this is a particularity of "artificial domains" (or domains whose core objects are "artificial things/artifacts"). The taxonomies are open-ended: we can create a new subtype at any time. This strategy (a new class for each new "model") seems to result in complex ontologies, with a huge number (and growing) of leaf nodes.

I wonder if this strategy is more suitable to deal with this problem. Or to consider "model" as an attribute of the root node.

I guess that the two design choices have differente implications. But I still could not identify what the implications are.  

Best regards.

2012/7/10 David Leal <david.leal@xxxxxxxxxxxxxxxxxxx>

Dear Juan,

Regarding "Ferrari 458 Italia" as a specialization of sports car
seems reasonable to me.

However the important information is that this class is a "model" as
defined by the marketing department. Probably the manufacturing
department has a different taxonomy, where instances of many
different classes can be sold as "Ferrari 458 Italia" because they
look similar on the outside. So perhaps we have in Turtle:

:myCar          a                       ferrari:458Italia .

ferrari:458Italia               rdfs:subClassOf         :sportsCar ;
                         a
:ClassOfArtifactDefinedByTheMarketingDepartment .

Best regards,
David

At 19:23 10/07/2012, Juan de Nadie wrote:
>Hi!
>
>Recently I have encoountered a problem in my ontology engineering
>project. Sometimes we must represent the notion of models in the
>ontology. Let us consider the domains of cars, robots and aircrafts,
>for example.
>
>In the car domain, we have the concept of car as a root node in a
>taxonomy of types of cars. Let us suppose that the cars can be
>"family cars" or "sport cars". What is the suitable way to model
>different models of "family cars" and "sport cars"? Let us consider
>the "Ferrari 458 Italia". I consider this model as a concept that
>specializes the "sport car" concept in my ontology? Or is more
>suitable consider an attribute of the concept "car" called "model"?
>
>There is some ontology design pattern to model these cases?
>
>Thanks.
>

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