rdf

Late last week I released ODO 0.20 which has some important updates:

• Jena Database compatibility layer

It is now possible to connect to and read/write databases created with HP Lab’s Jena . The code is still experimental but provides a good starting point for feedback. There are test cases in this release so regression testing and bug demonstration should be easy.

• RDFS code generator.

Ontologies and more specifically the RDFS code generator have been updated and bug tested. The version in the first release was a port of older code that didn’t translate perfectly in to the new ODO framework. I am happy to report that the code is now used to host the ODO-Jena compatibility layer and there are now test cases for it as well.

I have been working at IBM for the past couple years on a project called the IBM Semantic Layered Research Platform . The project is a collection of software components that provide support for semantics through the entire application-middleware stack.

We released the source code for the entire project in November under the Eclipse Public License .

My part of the project originates from my work on the LSID project. I had been working with a lot of RDF metadata while maintaining the Perl LSID development stack and realized that (back in early 2004) that a clean, useful and relatively bug free RDF framework didn’t exist. It turns out that a number of people shared my concerns and were independently creating their own ad hoc Perl libaries for RDF processing.