The OASIS SET TC aims to specify semantic mechanisms to achieve interoperability among document standards based of UN/CEFACT CCTS used in B2B, B2G and G2G applications by continuing work initiated by the iSURF Project in three respects:
i. Semantic Support for Context Domains
ii. Semantic Support for Customization of Core Components and Business Document Schemas
iii. Semantic Support for Document Translation
As such it complements the implementation of UBL (as a CCTS based vocabulary) and its interoperabilty with other vocabularies.
A slide presentation outlining the groups workplan is available at...
http://www.oasis-open.org/apps/org/workgroup/set/download.php/28844/20080711.SET.TC.ppt
For more details contact the newly appointed Chair, Professor Asuman Dogac (asuman(at)srdc.metu.edu.tr) or visit their OASIS website.