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

Matthew Horridge matthew.horridge at
Wed Nov 9 16:57:20 PST 2011


> 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.



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