[DL] W3C Invites Implementation of OWL 2

[Ian Horrocks]

The OWL Working Group [1] invites implementation of its OWL 2 Web  
Ontology Language. OWL 2 is a compatible extension to OWL 1 [2],  
providing additional features as well as computationally tractable  
profiles (sub-languages). The OWL 2 technical specification comprises  
9 documents, and there are a further 4 instructional documents. For  
descriptions and links to all the documents, see the OWL 2  
Documentation Roadmap [3].

The technical specification documents are now Candidate  
Recommendations, indicating that the Working Group and the W3C  
Director believe this is a good time for systems to begin adopting  
OWL 2 features on an experimental basis. The group maintains a list  
of implementations [4], a test suite [5], and a list of the test  
results achieved by different reasoners [6]. The group welcomes new  
information about implementations and other feedback -- please send  
information and or comments to <public-owl-comments at w3.org>.

The 4 instructional documents, which provide an introduction to OWL  
2, are now at Last Call: overview , primer , new features and  
rationale, and quick reference. Finally, a new datatype used within  
both OWL and RIF, called rdf:PlainLiteral (formerly called rdf:text)  
is also a Candidate Recommendation. Comments on these documents are  
also welcome and should again be sent to <public-owl-comments at w3.org>.

[1] http://www.w3.org/2007/OWL/wiki/OWL_Working_Group
[2] http://www.w3.org/TR/2004/REC-owl-features-20040210/
[3] http://www.w3.org/TR/owl2-overview/#Documentation_Roadmap
[4] http://www.w3.org/2007/OWL/wiki/Implementations
[5] http://km.aifb.uni-karlsruhe.de/projects/owltests/index.php/ 
OWL_2_Test_Cases
[6] http://www.w3.org/2007/OWL/wiki/Test_Suite_Status