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[MAWG] Datatypes for core properties

From: Florian Stegmaier <stegmai@dimis.fim.uni-passau.de>
Date: Tue, 23 Feb 2010 15:02:05 +0100
Message-Id: <C3BBC9FE-129C-4761-A556-A13F7E249F10@dimis.fim.uni-passau.de>
To: public-media-annotation@w3.org
Dear all,

in a seperate Skype session after the first meeting day of the 6th  
F2F, Werner, Tobias and i went through the meeting minutes [1] and  
discussed the defined datatypes of the properties.

Here is our consensus:

###Identification###
ma:identifier ::: URI (maybe with subproperties: [identifier:URI,  
type:String])
ma:title ::: [title:String, type:String]
ma:language ::: String (controlled by BCP 47 [2])
ma:locator ::: URI

###Creation###
ma:contributor ::: [Identifier:String or URI, role:String]
ma:creator ::: [Identifier:String or URI, role:String]
ma:createDate ::: [Identifier:Date, role:String]
ma:location ::: [Name:String] or [longitude:Float,latitude:Float,  
alitude:Float]

###Content description###
ma:description ::: String
ma:keyword ::: String (here we want to change the definition...keyword  
should be only keyword - but maybe more tokens -> more keywords  
accordingly more elements)
ma:genre ::: String (controlled, e.g., by the EBU vocabulary)
ma:rating ::: [Identifier:URI,  
value:Float,max:Float,min:Float,context:String]

###Relational###
ma:relation ::: [Identifier:URI, relation:String]
ma:collection ::: String or URI (nothing complex here)

###Rights###
ma:copyright ::: [copyright:String, Identifier:URI]
ma:licence ::: [licence:String, Identifier:URI]

###Distribution###
ma:publisher ::: String or URI (no role/subproperties needed here)
ma:targetAudience ::: [Identifier:URI, classification:String]

###Fragments###
ma:fragments ::: [Identifier: URI, role: String]
ma:namedFragments ::: [label: String, identifier: URI]

###Technical properties###
ma:frameSize ::: [width:Float, height:Float]
ma:compression ::: String (controlled by RFC 4281 [3])
ma:duration ::: Float (e.g., 5.001 -> 5s and 1ms)
ma:format ::: String (controlled by MIME types [4])
ma:samplingrate ::: Float
ma:framerate ::: Float
ma:bitrate ::: Float
ma:numTracks ::: Integer

In the F2F (or maybe only in the minutes) there was no definition of  
ma:description and ma:namedFragments.

Best,
Florian, Werner and Tobias

[1] http://www.w3.org/2010/02/23-mediaann-minutes.html
[2] http://www.rfc-editor.org/rfc/bcp/bcp47.txt
[3] http://www.ietf.org/rfc/rfc4281.txt
[4] http://www.isi.edu/in-notes/rfc2046.txt
_____________________________
Dipl. Inf. Florian Stegmaier
Chair of Distributed Information Systems
University of Passau
Innstr. 43
94032 Passau

Room 248 ITZ
Tel.: +49 851 509 3063
Fax: +49 851 509 3062
stegmai@dimis.fim.uni-passau.de

https://www.dimis.fim.uni-passau.de/iris/

http://www.jpsearch.org
http://www.mpegqueryformat.org
_____________________________
Received on Tuesday, 23 February 2010 14:01:55 GMT

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