Review of media type form before submission to IANA - packageitem

[Jayson Lorenzen]

As per the instructions for registering media types based on XML which
are outside of the five media types specified in rfc3023, and section
2.3.1 of rfc 2048. We (IPTC) are submitting the following potential
media type registration for preliminary community review before
submission to IANA.

The IPTC ( http://www.iptc.org/ ), is a consortium of the world's major
news agencies and news industry vendors. It develops and maintains
technical standards for improved news exchange that are used by
virtually every major news organization in the world.

Currently about 65 companies and organisations from the news industry
are members of the IPTC. 

Some of the standards currently maintained by IPTC: 
  NewsML 1          http://www.newsml.org/
  NITF              http://www.nitf.org/
  SportsML          http://www.sportsml.org/
  IIM               http://www.iptc.org/IIM/
  IPTC 7901 (ANPA)  http://www.iptc.org/IPTC7901/

The IPTC has decided to develop new family of news exchange standards -
the G2-Standards - for conveying different types of content. They will
be successors to the current versions of NewsML 1.x, SportsML 1.x.
Further to that a standard for exchanging event information - EventsML -
is also be developed at this stage.

After an "Experimental Phase 1" (EP#1) in winter 2005/2006, another EP#2
in summer 2006 and a final Release Candidate (RC) review in early 2007
the structures of the News Architecture 1.0 were approved by the IPTC on
30 May 2007. This includes the data model and all properties but
excludes the Processing Model.

You may download the NAR 1.0 package, a ZIP file (
http://www.iptc.org/std/NAR/NAR_1.0.zip ) containing these individual
documents and also find more information about the G2 family of news
exchange standards on the IPTC website at: http://www.iptc.org/NAR/ 

What we are looking to do is to formally register media types based on
XML for this new family of news exchange standards in the vendor tree. 
Specifically, with this request, we are seeking to register the
following media type:

  application/vnd.iptc.g2.packageitem+xml 
 
A version of the form we wish to submit follows. If this submission
requires additional information for community review and IANA approval,
please let us know.


---------- the form ----------

Media Type Name: application 

Subtype name: vnd.iptc.g2.packageitem+xml

Required parameters: none

Optional parameters: Identical to those of "application/xml" as
described in rfc3023, section 3.2


Encoding considerations: Identical to those of "application/xml" as
described in rfc3023, section 3.2

Security considerations: Identical to those of "application/xml" as
described in rfc3023, section 10


Interoperability considerations: Identical to those of "application/xml"
as described in rfc3023, section 3.1
 

Published specification: 

    NAR_1.0-spec-ModelCore_16.pdf     
   
http://www.iptc.org/std/NAR/1.0/specification/NAR_1.0-spec-ModelCore_16.pdf

    NAR_1.0-spec-ModelPowerExt_16.pdf   
   
http://www.iptc.org/std/NAR/1.0/specification/NAR_1.0-spec-ModelPowerExt_16.pdf

 

Applications which use this media type: none 

Additional information: 

Magic number(s):              none
File extension(s):            xml
Macintosh File Type Code(s):   Identical to those of "application/xml"
as described in rfc3023, "TEXT"


Object Identifier(s) or OID(s): 

It must be possible to positively identify an Item as it moves through
the news workflow, and is transferred from place to place and from
system to system. An Item therefore gets a globally unique identifier
(guid), which is a persistent, universally unique identifier, and a
version which is incremented when the content of the Item is updated.
The first version is numbered 1: if the version is not explicitly set,
this value must be assumed by the recipient of the Item. The guid is
required to be in the form of a IRI. Any IRI capable of acting as a
globally unique identifier is accepted; the IPTC provides a standard for
this purpose in the form of an IETF RFC [RFC-3085]. @@ At the time of
this writing the RFC 3085, initially defined in the scope of NewsML1, is
still to be complemented by a new RFC in which globally unique
identifier and version are separate properties. 


Intended usage:

 A Package Item (packageItem) facilitates the packaging of all kinds of
items, from really simple constructs to the highly hierarchical
structures created by some news providers.

Examples of Package Items are a collection of pictures, the "top ten"
list of news items, an unordered set of news items relative to the same
event, the representation of a section of a  newspaper page.

Other Information/General Comment: none


Person to contact for further information: 

  Name: Michael Steidl
 
  E-mail: mdirector at iptc.org


Author/Change controller:

  Name: Michael Steidl

  E-mail: mdirector at iptc.org