Re: [ontolog-forum] Apache Jena

[Siddharth Taduri <staduri@xxxxxxxxxxxx>]

Ron,

I've extensively used Jena in my research and it is an excellent library for developing applications dealing with RDF, RDFS, OWL and SPARQ - as the project website suggests. Jena provides a native RDFS rule engine which is computationally more efficient than a full-fledged OWL based rule engine. For more involved logic and properties, Jena also supports SWRL rules reasoning for OWL based ontologies via a few native OWL reasoners. The thing I like the most about Jena is its flexibility in integrating 3rd party reasoners such as the Pellet, an OWL reasoner which also has support for DL-Safe SWRL rules (a small subset of the OWL axioms). Jena integrates with traditional relational databases as a backend store for triples in a variety of formats and 3rd party triple stores such as Virtuoso, Mulgara can be easily integrated into any application. It's also easy to throw a decent front end onto any application using Google's Web Toolkit or similar frameworks.

I may be a little under-informed, but I believe HP doesn't support the Jena project anymore and has hence transitioned into the Apache Incubator. Since it is an already well established library, I believe it will soon be endorsed by the Apache Software Foundation and will receive full support from the Apache community.

Cheers,

-- Sid

On Fri, Dec 23, 2011 at 10:57 AM, Ron Wheeler <rwheeler@xxxxxxxxxxxxxxxxxxxxx> wrote:

Is this something useful?

http://incubator.apache.org/projects/jena.html
"Jena is a Java framework for building Semantic Web applications. It provides a programmatic environment for RDF, RDFS and OWL, SPARQL and includes a rule-based inference engine."

It is still in incubation at Apache.

Ron

--
Ron Wheeler
President
Artifact Software Inc
email: rwheeler@xxxxxxxxxxxxxxxxxxxxx
skype: ronaldmwheeler
phone: 866-970-2435, ext 102



_________________________________________________________________
Message Archives: http://ontolog.cim3.net/forum/ontolog-forum/
Config Subscr: http://ontolog.cim3.net/mailman/listinfo/ontolog-forum/
Unsubscribe: mailto:ontolog-forum-leave@xxxxxxxxxxxxxxxx
Shared Files: http://ontolog.cim3.net/file/
Community Wiki: http://ontolog.cim3.net/wiki/
To join: http://ontolog.cim3.net/cgi-bin/wiki.pl?WikiHomePage#nid1J
 

_________________________________________________________________
Message Archives: http://ontolog.cim3.net/forum/ontolog-forum/  
Config Subscr: http://ontolog.cim3.net/mailman/listinfo/ontolog-forum/  
Unsubscribe: mailto:ontolog-forum-leave@xxxxxxxxxxxxxxxx
Shared Files: http://ontolog.cim3.net/file/
Community Wiki: http://ontolog.cim3.net/wiki/ 
To join: http://ontolog.cim3.net/cgi-bin/wiki.pl?WikiHomePage#nid1J    (01)