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From Stefano Mazzocchi <stef...@apache.org>
Subject Re: Jackrabbit and MPEG-21
Date Mon, 14 Feb 2005 04:56:49 GMT
David Dabbs wrote:
> Hello,
> 
> I came across Jackrabbit today and was wondering what consideration you've
> given to the MPEG-21 work under the ISO/IEC 21000-1:2001 standard?  
> If you're not familiar with it, MPEG-21 is a set of standards relating to
> "Digital Items." Broadly, it is the 
> 
>    ...integration of the critical technologies enabling transparent and
>    augmented use of multimedia resources across a wide range of networks 
>    and devices to support functions such as: content creation, content
>    production, content distribution, content consumption and usage, content
>    packaging, intellectual property management and protection, content
>    identification and description, financial management, user privacy,
>    terminals and network resource abstraction, content representation and
>    event reporting.
> 
> Seeing "multimedia resources" and MPEG might lead one to think this probably
> isn't relevant to JSR 170. However, the standard proposes a "flexible model
> for Digital Items that accommodates the many types of content, as well as
> any and all new forms it may assume in the future." 
> 
> There seems to be similarity between Jackrabbit's "node/item structure" and
> the MPEG-21 Digital Item Declaration, "a uniform and flexible abstraction
> and interoperable schema for declaring Digital Items." The MPEG-21 DID
> notions of 'Container', 'Item', 'Component', 'Anchor' and 'Descriptor' seem
> particularly relevant. See below. Perhaps the MPEG-21 scheme could be used
> for mixins or more likely as an XML export or interchange mechanism?

Are you aware of the fact that the licensing model for MPEG-21 might not 
be compatible with an open source project?

-- 
Stefano.


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