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MAWG Feedback (Take 2)

From: Renato Iannella <renato@iannella.it>
Date: Wed, 11 Aug 2010 12:43:08 +1000
Message-Id: <FCD740AA-A662-4233-BFF9-E383844218FE@iannella.it>
To: pling <public-pling@w3.org>
Dear PLINGers, 

Can you please send comments ASAP (as we have missed the formal "last call" deadline) for the below updated feedback on the "Ontology for Media Resource 1.0" W3C Working Draft 08 June 2010 [1].

Cheers

Renato Iannella
[1] http://www.w3.org/TR/mediaont-10/

==========================================
PLING feedback on the "Ontology for Media Resource 1.0" W3C Working Draft 08 June 2010.

We found the two properties ma:copyright and ma:policy to have overlapping and ambiguous semantics that could lead to improper use of the these two properties.

We suggest that the properties should be subsumed into the single ma:policy property with the following description:

"A tuple containing a policy statement associated with the resource (eg copyright), an identifier of policy (typically machine-resolvable), and the type of the policy to provide more information as to the nature of the policy. At least one of identifier and/or statement is mandatory and type is optional"

The "type definition" of the ma:policy property would include:
 - ma:policy.statement - A human-readable description of the Policy (string)
 - ma:policy.identifier - The Identifier of the Policy (URI)
 - ma:policy.type - The category of the Policy (URI)

Recommended values for policy.type is the Meta information from the XHTML Vocabulary (http://www.w3.org/1999/xhtml/vocab/#)

The ma:copyright would naturally be mapped into ma:policy.statement

Other Examples:
--------
ma:policy[0].statement = "Copyright PLING Inc 2010. All Rights Reserved"
ma:policy[0].type = "http://www.w3.org/1999/xhtml/vocab/#copyright"

ma:policy[1].identifier = "http://p3pbook.com/examples/10-4.xml"
ma:policy[1].type = http://www.w3.org/1999/xhtml/vocab/#p3pv1"

ma:policy[2].identifier = "http://odrl.net/license/license.xml"
ma:policy[2].type = http://www.w3.org/1999/xhtml/vocab/#license"

ma:policy[3].identifier = "http://creativecommons.org/licenses/by/3.0/"
ma:policy[3].type = http://www.w3.org/1999/xhtml/vocab/#license"
==========================================
Received on Wednesday, 11 August 2010 02:43:49 GMT

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