Re: [ubl-dev] Question regarding document copy and attachment in UBL

["Stephen Green" <stephengreenubl@gmail.com>]

On 08/08/2008, Diogo Almeida <diogo.borges.almeida@gmail.com> wrote:
...

> #1 Scenario: A supplier issues an UBL 2.0 invoice but wants to send some
> support documents along with it.
> The first question that I ask is if I can send them inside the UBL? Can this
> be done using the Attached Document?


I would consider using the extension element for this if the attachments
are XML. Although the expected use of this is as a way to extend the XML
as a customisation, it was always a use case from the start that it could be
used to add data such as accounting/costing information to an invoice, say.

I'm not sure the Attached Document is appropriate for adding data to an existing
document but I might be wrong. I'll let someone else comment on how best to
use it.



> #2 Scenario: The receiver of the invoice asks its supplier to resend the
> invoice.
> From what I've managed to find this can be done by marking the document as a
> copy. Is there anything else that needs to be done to state that the
> document is being resent?


The CopyIndicator is indeed there for exactly this reason. You might also need
to think about whether the UUIDs (if you use them) should be the same
as with the
original document. I would say they should but it may be something for the
auditors concerned to decide in your usage scenario. You could argue on one hand
that if you send a document with a changed CopyIndicator contents then it is not
the same document (the signature, etc might have to be different) so
it should have
a new UUID. However, if the UUID is used (as intended) as a way to identify the
business document uniquely then changing it may prevent its use for
that purpose.
...
I would say to ask any stakeholder auditors who might have a preference but
otherwise just change the CopyIndicator. On the other hand, this is when sending
the document again from the business application. Sometimes the message
handler (technical layer) resends it, in which case it probably doesn't change
anything at all and probably keeps the same digital signature if one is used.



>
>
> Thanks in advance.
>
> Best regards,
> Diogo Almeida
>



--
Stephen D. Green

Partner
SystML, http://www.systml.co.uk
Tel: +44 (0) 117 9541606
Associate Director
Document Engineering Services
http://www.documentengineeringservices.com

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