Re: [ubl-dev] infinite loop

[Stephen Green <stephengreenubl@gmail.com>]

It seems reasonable to conclude that the standard
part of UBL is loose enough to allow most kinds of
use. To actually use it you probably need more than
just the standard. You need to further restrict it e.g.
to restrict the number of nestings of AgentParty.
There are standard ways to do this. Ken and I first
produced a subset  by listing elements using XPaths.
David led a  standard for restricting documents, also
involving XPath and called CAM. I edited an in progress
potential standard which can also be used with XPath to
define restrictions and that is called  test assertion
markup language. Ken led some of the work to
standardise a more prevalent , similar technology to add
restrictions beyond the schema called Schematron when
it was standardised in ISO. All these help restrict
UBL with rules or assertions beyond what the standard
requires but to meet typical requirements for implementing it.
Worth looking into all this, I expect.

Regards
Stephen D Green


-- 
Best regards

Steve
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Stephen D Green