UN/CEFACT wants us to drop the concatenation of terms we use in the names of CC’s and BIE’s (and the datatypes used by these). We use this concatenation to avoid a transformation from UML version to XML representation. When we drop this concatenation in UML, we will have to find a solution for the still required concatenation in XML. And that then not only in the names used in UML for classes and properties, but also in the OCL statements that we apply to these UML artefacts (and this last issue is probably the most tricky one)