RE: [ubl-dev] UUID

[Chin Chee-Kai <cheekai@SoftML.Net>]

Thanks for your highlighting of appropriateness of posting.
I didn't realize I was the one posting a lot of "Q's" when I was
only trying to clarify the thread with UUID's usage within UBL.
If that's not even appropriate, then I'm sorry about it.

About your claim of "this was originally developed by Microsoft",
I thought I learned something from you.   But when I do some more
digging, the facts (listed below) didn't seem to support what
you said.  Perhaps you could clarify and point me to some sources
to support your claim.

Thanks.

[1] http://www.uddi.org/pubs/draft-leach-uuids-guids-01.txt
[2] 
http://download.eclipse.org/tptp/4.2.0/javadoc/Platform/public/org/eclipse/hyades/loaders/util/Guid.html
[3] http://portal.acm.org/citation.cfm?id=78985

Best Regards,
Chin Chee-Kai

At 09:13 AM 2006-09-02 -0700, David RR Webber \(XML\) wrote:
>Chin,
>
>I don't think this is the best list to post these type of Q's vis
>message handling.
>
>All the Qs you ask about delivery, redelivery dsigs, etc are already
>taken care of in the ebXML messaging specification and you just need to
>do delivery via a conformant ebMS to take care of all that.
>
>Vis the UUID algorithm - this was originally developed by Microsoft I
>beleive for use in Windows registry - and subsequently published.  You
>can get open source that implements it.  The UUID mechanism is also
>used in ebXML Registry - so that contains existing functions that
>compute those for you.
>
>DW
>
>
>  -------- Original Message --------
>Subject: Re: [ubl-dev] UUID
>From: Chin Chee-Kai <cheekai@SoftML.Net>
>Date: Sat, September 02, 2006 1:25 am
>To: UBL-Dev <ubl-dev@lists.oasis-open.org>
>
>I suppose "universally" has to exclude e-commerce to Pluto from now
>on...
>
>Anyway, the UUID follows a specific algorithm to ensure that IDs
>generated by
>this same algorithm are all unique anywhere in the world and across
>time,
>with only extremely small and insignificant chances of collision (2 or
>more
>generated IDs are the same).
>
>So values stuffed into this field need to follow that algorithm in order
>to
>achieve
>uniqueness universally (within Earth).
>
>In the original poster's question, he's right to say different
>transmissions of
>the same business instance would use different UUID and same business
>ID.
>That's theoretically though.  There may be practical difficulties in
>trying to
>replace different values of UUID into the instance prior to
>transmission, and
>retain the overall integrity of the digitally-signed instance if digital
>
>signature
>is used.  Need to look a bit more into this aspect I think.
>
>Best Regards,
>Chin Chee-Kai
>
>At 10:50 AM 2006-09-02 +0800, Tim McGrath wrote:
> >I would say that it means parties exchanging these documents can be
> >assured they will never see a duplicate value for this identifier in any
> >other document instance.  in other words 'universally' means within their
> >universe of discourse.
> >
> >This includes other galaxies :-)
> >
> >
> >G. Ken Holman wrote:
> >
> >>
> >>Does anyone have insight on the scope of "universally" in the UBL 
> definition?
> >>
> >>. . . . . . . . . . . . . . . Ken
> >>
> >
> >--
> >regards
> >tim mcgrath
> >phone: +618 93352228
> >postal: po box 1289   fremantle    western australia 6160
> >web: http://www.portcomm.com.au/tmcgrath
> >
> >
> >---------------------------------------------------------------------
> >To unsubscribe, e-mail: ubl-dev-unsubscribe@lists.oasis-open.org
> >For additional commands, e-mail: ubl-dev-help@lists.oasis-open.org
>
>
>---------------------------------------------------------------------
>To unsubscribe, e-mail: ubl-dev-unsubscribe@lists.oasis-open.org
>For additional commands, e-mail: ubl-dev-help@lists.oasis-open.org


Best Regards,
Chin Chee-Kai
SoftML
Tel: +65-6820-2979
Fax: +65-6820-2979
Email: cheekai@SoftML.Net
http://SoftML.Net/