Re: [office-metadata] Data types

[Michael Brauer - Sun Germany - ham02 - Hamburg <Michael.Brauer@Sun.COM>]

Robin,

thank you very much for this clarification. I didn't know that status of
RFC3121. So, we may want to use http namespace URIs for new namespace in 
the future. However, I don't think we should adapt our existing 
namespaces, because until now, an ODF 1.2 document can be read by ODF 
1.0/1.1 applications. We in may opnion shouldn't give that up without 
having strong reasons.

Best regards

Michael

Robin Cover wrote:
> On Fri, 9 Mar 2007, Bruce D'Arcus wrote:
> 
>> On Mar 9, 2007, at 10:40 AM, Michael Brauer - Sun Germany - ham02 -
>> Hamburg wrote:
>>
>>>> I think in general ODF should get away from using non-resolvable URNs
>>>> for namespace URIs. It can be useful in a lot of course to actually
>>>> resolve these URIs to further documentation and such.
>>> OASIS has rules for the composition of namespace URIs, so this is
>>> probably nothing we can change.
>> Do those rules say you cannot use HTTP URIs? If they do, they need to
>> be changed, as that would be a silly limitation.
>>
>> Or, are they simply rules which say how to compose non-resolvable URN
>> namespace URIs? That would make sense of course.
>>
>> Bruce
> 
> Michael/Bruce,
> 
> Please see the approved Naming Guidelines, which cover
> 
> XML Namespace Design, Allocation, and Management
> http://docs.oasis-open.org/specGuidelines/namingGuidelines/resourceNaming.html#NamespaceDesign
> 
> "Any of the three common types of namespace names (URI references) are
> allowed: hash type, slash type, and simple (no-trailing-delimiter) type"
> 
> URNs are allowed, but OASIS Staff has a distinct preference for the
> use of HTTP scheme namespace names -- for reasons that anyone can guess.
> 
> ========= Further notes:
> 
> 1. OASIS members have different opinions about the relative value
>    of URNs.  During ASIS reviews, we received several suggestions
>    (supported by some Staff) to simply "kill" URNs in terms of
>    further use.  Staff involved in the review of ASIS recommended
>    against wider promotion of URNs.
> 
> 2. Several attempts/motions have been made to formally rescind
>    (however one does that in IETF) RFC 3121, since, in the
>    understanding of most, OASIS no longer has any commitment
>    to do what the RFC indicates, as far as we can determine:
> 
>    "A more interactive, online resolution system will also be
>    deployed in the near future."
> 
>    See:
>    http://www.ietf.org/rfc/rfc3121.txt
>    A URN Namespace for OASIS
>    IETF Network Working Group
>    Request for Comments: 3121 (Informational)
>    K. Best and N. Walsh
>    June 2001
> 
> 3. The author of the OASIS RFC (Norm Walsh) says, recently:
> 
>    "I no longer see value in URNs at all..."
> 
>    See:
>    Norm Walsh
>    http://lists.oasis-open.org/archives/oasis-member-discuss/200603/msg00002.html
> 


-- 
Michael Brauer, Technical Architect Software Engineering
StarOffice/OpenOffice.org
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D-20097 Hamburg, Germany          michael.brauer@sun.com
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