Re: [ubl-comment] UBL 2.1 version is approved?

["G. Ken Holman" <gkholman@CraneSoftwrights.com>]

At 2013-05-02 09:53 +0200, Elena Pastor wrote:
> UBL 2.1 version is approved?

It is close to being approved, but it is not approved at this 
time.  It is approaching the fourth public review process, after 
which it will be a Committee Specification.  At that point the 
committee will go through the process of making it an OASIS 
Standard.  We are working as fast as we can.

> Document Invoice UBL 2.0 is compatible with Invoice UBL 2.1?

All UBL 2.0 invoice documents will validate with UBL 2.1 invoice 
schemas.  The changes to UBL 2.1 were made in such a way as to ensure 
existing UBL documents would still be schema-valid with future UBL 
schemas.  It is our intention always to maintain this backward 
compatibility:  all UBL documents of any given minor revision will be 
valid UBL documents for all following minor revisions.

Of course it does not work the other way:  an unmodified instance of 
UBL 2.1 will not validate with UBL 2.0 schemas when it includes 
constructs that are not defined in UBL 2.0.  If, however, the UBL 2.1 
instance is not using any new-in-2.1 constructs, or such new-in-2.1 
constructs are removed from the instance, the result can validate 
with UBL 2.0 schemas.  This testing and pruning is illustrated in the 
UBL 2 customization guidelines in figure 24 in section 4 on validation:

http://docs.oasis-open.org/ubl/guidelines/UBL2-Customization1.0cs01.html#_Toc243466478

> What are the main differences in Document Invoice??

The many extensive changes to the UBL document structures are 
summarized as part of the latest UBL 2.1 specifications, but these 
are not called out specifically for just the invoice document:

http://docs.oasis-open.org/ubl/prd3-UBL-2.1/UBL-2.1.html#S-CHANGES-FROM-UBL-2.0-TO-UBL-2.1

You may find it easier to review the new Invoice structure through 
the published HTML reports:

http://docs.oasis-open.org/ubl/prd3-UBL-2.1/mod/summary/reports/UBL-Invoice-2.1.html

Note that general developer questions can be directed to the UBL 
community by way of the UBL-Dev mail list:

  http://lists.oasis-open.org/archives/ubl-dev/
        ( http://www.oasis-open.org/mlmanage/ )

Good luck in your work with UBL!

. . . . . . . . . Ken

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