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[mawg] ACTION-141: Update of rationale r09

From: Tobias Bürger <tobias.buerger@sti2.at>
Date: Tue, 21 Jul 2009 12:35:55 +0200
Message-ID: <4A659A0B.9090907@sti2.at>
To: Media Annotation <public-media-annotation@w3.org>
Dear all,

here is my proposed update of the rationale of r09 ("Taking different 
roles in metadata processing into account") with respect to ACTION-141:

Metadata is generated and being dealt with by different agents with 
different roles throughout the whole lifecycle of a media resource. We 
can distinguish between producers (e.g., a video camera or the producer 
of a media resource), changers (e.g., a person which modifies initially 
created metadata), and consumers (e.g., an application which processes 
metadata to make it accessible for search).
If values of metadata properties which are, for instance, created my two 
different agents, are in conflict, a description of provenance 
information with respect to the roles but also the context of metadata 
creation of these values could be useful and should be taken into 
account. For instance, a manually created value by a human agent might 
be more reliable than an automatically created value by a software 
agent. Furthermore metadata produced by the creator of a particular 
media resource might be more accurate than metadata produced by a media 
consumer of this resource.

If you think it is fine, then I can record the change in the use case 
document accordingly.

Best regards,


Dr. Tobias Bürger

STI Innsbruck
University of Innsbruck, Austria

Received on Tuesday, 21 July 2009 10:36:46 UTC

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