The methodology should be based un UML 2.x instead of the outdated UML 1.4. This would also imply that all tagged values are expressed as belonging to stereotypes. Hence, the "unstereotyped UML classes" (i.e. the components in DATEX II terminology) shoudl also have a stereotype (e.g. <<component>>). In this process, the UML profile provided with the Enterprise Architect model should also be revised and improved.
Proposal to base future releases of DATEX II on UML 2.x will be proposed to steering level.
DATEX II v2.0 will remain to be based on UML 1.4 to keep alignment with CEN standardisation.
The UML profile will be improved.
DATEX II v3.0 will have a fully UML2 compliant UML profile.