Yes Stardog may be a commercial product but it is my understanding that like other triple stores (AllegroGraph, OWLIM, Virtuoso etc) it will have a free community edition that will have a limited feature set.
Is open source a hard and fast requirement or do you just not want to pay for the triple store? Depending on the amount of data you have and the features you need the free version of one of the mentioned triple stores may be suitable for your use case Rob -----Original Message----- From: Nick Khamis [mailto:[email protected]] Sent: Monday, November 07, 2011 11:18 AM To: [email protected]; [email protected] Subject: Re: [jena-dev] Re: OWL APIs, Triple Stores, OWL DL Rasoners Reply More| Hello Everyone, 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? * 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. * 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. I have looked into projects such as PelletDB and Allegrograph which look great however, we are looking for actively developed open source solutions Thanks in Advnace, Ninus. >> Have you looked at Stardog from Clark&Parsia? Hello Alex, Thank you so much for your response. Part of the requirements is to use only open source projects. It seems like Stardog is a commercial product? Thanks in Advance, Ninus.
