RE: [ubl-dev] UUID

["David RR Webber \(XML\)" <david@drrw.info>]

Juha, 
  
If you are using ebXML messaging and reliable messaging then the
delivery is controlled to the ebXML messaging specification (ebMS). 
  
Retrying will occur to the level of tries specified in the CPA between
partners. 
  
Failure recovery is then determined by the BPSS work flow. 
  
If a subsequent re-send is permitted - then yes - it will be an entirely
new exchange - but the business information of course can be the same. 
  
It is the job and purpose of the ebMS to avoid duplicate messages - and
again that is also part of the specification. 
  
Tools like Hermes V1 from http://www.freebxml.org implement a
significant portion of this reliable interchange system. 
  
UUID algorithm is an open public specification and computes a unique 32
byte string based on date/time and IP location. 
  
DW 


 -------- Original Message --------
Subject: [ubl-dev] UUID
From: Juha Ikävalko <juha.ikavalko@tieke.fi>
Date: Tue, August 22, 2006 8:29 am
To: "UBL-Dev" <ubl-dev@lists.oasis-open.org>

Hi Developers,



I got a question what is the purpose of UUID in UBL documents?
Definition says "A computer-generated universally unique identifier
(UUID) for the Order instance". My conclusion: ID identifies the order
on the business level and UUID identifies an order message instance on
the technical level. Thus, if a seller is not able to receive the order
message at the first attempt, a buyer sends a new order message with
same ID but different UUID. Is this the right conclusion?



Regards,



Juha Ikävalko

TIEKE Tietoyhteiskunnan kehittämiskeskus ry 
TIEKE Finnish Information Society Development Centre 
Salomonkatu 17 A, 10th floor FI-00100 Helsinki 
Tel +358 9 4763 0410 Fax +358 9 4763 0399 
juha.ikavalko@tieke.fi http://www.tieke.fi <http://www.tieke.fi>