Example models (UPCC)
The example models are available as Enterprise Architect files. If you want to export the EA definitions as XMI right click on the top package in the EA file and choose “Import/Export”.
UPCC 3.0
UPCC 1.0
No examples available.
Enterprise Architect is a UML modeling tool developed by the Australian based company Sparx Systems. It supports UML 2.1 and its prior versions. The tool is available for Windows and Linux systems. A free 30 day trial-version can be downloaded from the company’s website.

UN/CEFACT Modeling Methodology (UMM) Development Site - Modeling B2B collaborations » Blog Archive » CCL08A available as Enterprise Architect file:
[...] Example models (UPCC) [...]
28 October 2008, 3:16 pm