I just updated an example created for UBL TC of a UBL calculation model (example) using the last posted version of the 'Test Assertion Markup Language' (draft 0.5). I posted this to UBL comment list here http://lists.oasis-open.org/archives/ubl-comment/200909/msg00000.html and the link to the zipped TA file and a copy of the schema is here http://lists.oasis-open.org/archives/ubl-comment/200909/zip00000.zip

(I guess it lacks a prose version of the TAs which are expressed here just using XPath, since they relate to XML documents.)

The UBL TC recently minuted a decision regarding this calculation model made at their latest face-to-face

http://www.oasis-open.org/committees/download.php/34150/200908-sessions.txt

which is that, rather than publishing the calculation model as test assertions as part of the upcoming version of UBL 2.1 (yet to go through its first public review) they will advise implementers and conformance profile authors to publish their own calculation model and that they will point them towards the TAG TC work for doing so.

Best regards

Steve