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[protege-discussion] OWL APIs, Triple Stores, OWL DL Rasoners

Nick Khamis symack at
Wed Nov 9 17:17:28 PST 2011

Hello Matthew,

Thank you so much for your response. This is all amazing information!
Could you recomment a low level RDF API. Reason being, they tend
to be more efficent/faster. The benefits could far outweigh the drawbacks,
as long as there is already a nice implementation of the owl2 object wrappers?

Thanks in Advance,


On Wed, Nov 9, 2011 at 7:57 PM, Matthew Horridge
<matthew.horridge at> wrote:
> Hi,
>> We are looking for a solution that would allow us to transfer our OWL2
>> knowledge base to a full fledged application.
>> What we are looking for are:
>> * An OWL API capable of creating OWL 2 models: The Protege API is
>> great however comes with much to much overhead,
>> i.e., the editor related implemanation. Is the Jena api capable of
>> creating OWL 2 ontology models? Are there any new,
>> and active ontology APIs currently out there?
> There's the OWL API  (
> Pellet's native Ortiz API (
> Any RDF API can work at the level triples that are used to encode OWL 2 objects.  However, this might be too low level for you.
>> * A triple store capable of storing OWL 2 expressions, and performing
>> deduction using the widely used reasoners. It is
>> important for us to support OWL or OWL 2 reasoning on the triple store
>> level. Much like Sesame does with OWLIM.
>> The triple store must also be able to inteface with the Pellet reasoner.
> Take a look at Clark and Parsia's StarDog software (  It looks very comprehensive and Pellet is a key component.
>> * Interface between the reasoners and the triple stores. I would
>> assume at this early stage that deduction on the triple
>> store level using a pellet would be done through an interface of some
>> sort (e.g., Triple Store -> Jena -> Pellet). If I am
>> not mistaken, what are some of the soultions used out there for this.
> See above.
> Cheers,
> Matthew
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