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RE: [MMSEM-Vocabulary] XGR 'Multimedia Vocabularies on the Semantic Web' available

From: Hausenblas, Michael <michael.hausenblas@joanneum.at>
Date: Tue, 1 May 2007 00:18:59 +0200
Message-ID: <768DACDC356ED04EA1F1130F97D29852010DF5C6@RZJC2EX.jr1.local>
To: "Christian Timmerer \(ITEC\)" <christian.timmerer@itec.uni-klu.ac.at>
Cc: <public-xg-mmsem@w3.org>


Thanks for this input. It is now part of the Voc XGR [1].


[1] http://www.w3.org/2005/Incubator/mmsem/XGR-vocabularies-20070419/

 Michael Hausenblas, MSc.
 Institute of Information Systems & Information Management
 JOANNEUM RESEARCH Forschungsgesellschaft mbH
 Steyrergasse 17, A-8010 Graz, AUSTRIA



	From: Christian Timmerer (ITEC)
	Sent: Saturday, April 28, 2007 6:52 PM
	To: erik.mannens@ugent.be; Hausenblas, Michael
	Cc: public-xg-mmsem@w3.org;
	Subject: RE: [MMSEM-Vocabulary] XGR 'Multimedia Vocabularies on
the Semantic Web' available


	Dear Erik, Michael,

	  as promised here comes my MPEG-21 description (with track
changes on) which is actually based on what Erik provided already. I
tried to extend and fill in the missing parts. Feel free to incorporate
it into the XGR subject to any changes you think are appropriate.


	Best regards,




	:- Dipl.-Ing. Dr. Christian Timmerer

	:- Department of Information Technology (ITEC)

	:- Klagenfurt University, Austria

	:- http://research.timmerer.com



	>> Visit the IT Campus Carinthia

	>> http://www.it-campus.at


	From: public-xg-mmsem-request@w3.org
[mailto:public-xg-mmsem-request@w3.org] On Behalf Of Erik Mannens
	Sent: Monday, April 23, 2007 5:09 PM
	To: 'Hausenblas, Michael'; christian.timmerer@itec.uni-klu.ac.at
	Cc: public-xg-mmsem@w3.org
	Subject: [MMSEM-Vocabulary] XGR 'Multimedia Vocabularies on the
Semantic Web' available


	Dear Michael, Christian,



	hereby the MPEG-21 snippet that could replace the old one.
Christian, can you check if all your comments are taken care of?



	Sincere greetings,

	Erik Mannens


	Project Manager

	Ghent University - IBBT
	Faculty of Engineering
	Department of Electronics and Information Systems
	Multimedia Lab
	Gaston Crommenlaan 8 bus 201, B-9050 Ledeberg-Ghent, Belgium
	t: +32 9 33 14993
	f: +32 9 33 14896

	m: +32 473 27 44 17

	t sec: +32 9 33 14911
	e: erik.mannens@ugent.be <mailto:erik.mannens@ugent.be> 
	URL: http://multimedialab.elis.ugent.be


	The MPEG-21 standard aims at defining a framework for multimedia
delivery and consumption which supports a variety of businesses engaged
in the trading of digital objects. MPEG-21 is quite different to its
predecessors, as it is not focused on the representation and coding of
content like MPEG-1 to MPEG-7 do, but instead focusing on filling the
gaps in the multimedia delivery chain. MPEG-21 was developed with the
vision in mind that it should offer users transparent and interoperable
consumption and delivery of rich multimedia content. The MPEG-21
standard consists of a set of tools and builds on its previous coding
and metadata standards like MPEG-1, -2, -4 and -7, i.e., it links them
together to produce a protectable universal package for collecting,
relating, referencing and structuring multimedia content for the
consumption by users (the Digital Item). The vision of MPEG-21 is to
enable transparent and augmented use of multimedia resources (e.g. music
tracks, videos, text documents or physical objects) contained in digital
items across a wide range of networks and devices. 

	The two central concepts of MPEG-21 are Digital Items, a
fundamental unit of distribution and transaction, and the concept of
Users interacting with Digital Items: A User is any entity that
interacts in the MPEG-21 environment or makes use of a Digital Item, and
a Digital Item is a structured digital object with a standard
representation, identification and metadata within the MPEG-21
framework. This entity is also the fundamental unit of distribution and
transaction within this framework. 

	The MPEG-21standard consists of 18 parts (part 13, formerly
known as Scalable Video Coding, has been specified as an amendment to
MEPG-4 part 10; consequently, part 13 is currently no longer in use): 

	*	Digital Item Declaration (DID) - provides a schema
consisting of a set of abstract terms and concepts to define Digital
Items. The DID Model defines digital items, containers, fragments or
complete resources, assertions, statements and annotations on digital
	*	Digital Item Identification and Description (DII) - is
concerned with the ability to identify and refer to complete or partial
Digital Items. 
	*	Intellectual Property Management and Protection (IPMP) -
specifies how to include IPMP information and protected parts of Digital
Items in a DIDL document. It declares a IPMP Digital Item Declaration
Language, which provides for a protected representation of the DID
model. Secondly, it declares IPMP Information schemas, which define
structures for expressing protection-related information. 
	*	Rights Expression Language (REL) - provides a schema to
declare rights and permissions using the terms as defined in the Rights
Data Dictionary. 
	*	Rights Data Dictionary (RDD) - comprises of a set of
uniquely identified terms that can be used to declare rights on items
using the REL. 
	*	Digital Item Adaptation (DIA) - primarily specifies
metadata on which the adaptation of content across devices and networks
could be based. Additionally it specifies the behavior and a framework
for tools to assist the adaptation of content. 
	*	Reference Software: This part includes descriptions and
implementations of the normative parts of the standard (DID, DII, REL,
RDD and DIA). This part should ensure a fast adaptation and
implementation of compliant applications. 
	*	File Format: This part specifies how the MPEG-21 file
(container) format where a digital item and its references content can
be placed. The file format is an extension of the ISO file format. 
	*	Digital Item Processing (DIP) - DIP should improve the
processing of 'static' Digital Items by providing tools that allow Users
to add functionality to a DID. One possible use of DIP is to provide a
Digital Item with a set of methods that can are visible to users and
could be performed on the DI. For this purpose the DIP part specifies so
called Digital Item Methods (DIM) that can be expressed using the
Digital Item Method Language (DIML). 
	*	Vision, Technology and Strategy: This parts includes an
overview of the standard 
	*	Evaluation Methods for Persistent Associations: This
part deals with how resources and metadata can be persistently linked
and how especially IPMP protection can be ensured on the content. 
	*	Test Bed for MPEG-21 Resource Delivery: This part
consists of a software framework including a streaming player, a media
server and a network emulator to test MPEG-21 tools. 
	*	Conformance Testing 
	*	Event Reporting 
	*	Binary Format 
	*	Fragment Identification for MPEG Media Types 
	*	Digital Item Streaming 

	MPEG-21 identifies and defines the mechanisms and elements
needed to support the multimedia delivery chain as described above, as
well as the relationships between and the operations supported by them.
Within the parts of MPEG-21, these elements are elaborated by defining
the syntax and semantics of their characteristics, such as interfaces to
the elements. 



Received on Monday, 30 April 2007 22:19:02 UTC

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