Bringing semantic capabilities to CMIS compliant content repositories

[Suat Gonul <suatgonul@gmail.com>]

Dear CMIS community,

I would like to inform you about the study related with the CMIS
specification, that we did in the scope of Apache Stanbol project [1].
As a brief introduction, Stanbol is a software aiming to bring semantic
capabilities to existing content management systems. One of the
subcomponents of Stanbol is CMS Adapter[2].

In the scope of CMS Adapter, in the first step, we tried to transform
structure of a CMIS repository into an OWL model based ontology. In this
method, all object types registered with the repository are transformed
to classes. Folders and documents can be transformed into either classes
or individuals. When content repository objects are transformed into
individuals, they are created as instances of classes which correspond
to their object types. Furthermore, relationships are transformed into
object properties and corresponding assertion is set between the source
and target individuals. The aim in extracting such kind of an OWL model
based ontology, is to enable reasoning on it (which cannot be done on
content repository itself in our opinion). I have written a blog post
about this feature at [3]. We have also a paper regarding this feature.
It can be downloaded from [4].

The second approach is a bidirectional mapping approach between RDF data
and content repositories. It basically provides populating content
repository with RDF data in one way and transforming content repository
structure into RDF in the other way. The mapping process is done
according to a handful of configurations parameters. For instance one
indicates the resources to be mapped to the content repository, one
indicates parents of selected resources, etc. There is also another blog
post including details about this feature at [5].

I would be glad if you have a look at the blog post and could share your
opinions about our approaches, further ideas to improve the existing
design.

Best regards,
Suat

[1] http://incubator.apache.org/stanbol/
[2] http://incubator.apache.org/stanbol/docs/trunk/cmsadapter/
[3]
http://blog.iks-project.eu/stanbol-cms-adaptor-allows-you-to-transform-jcrcmis-nodes-into-semantic-web-schemas/
[4]
http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.188.7723&rep=rep1&type=pdf
[5]
http://blog.iks-project.eu/adding-knowledge-to-jcrcmis-content-repositories/