I just looked at the page you linked, just my 2 cents (I'm not a dev, so I just post these random questions)
* is there any intention to use a metadata schema?
** are you planning using Dublin Core or something else?
* what about metadata exchange protocol as OAI-MPH (there should be a MW extension, but I don't know it works)
or OAI-ORE (still in development, AFAIK)? 

Aubrey
(it.source, wmi board)

2011/1/20 Bryan Tong Minh <bryan.tongminh@gmail.com>
Hello,


As you may have noticed, Roan, Krinkle and me have started to more
tightly integrate image licensing within MediaWiki. Our aim is to
create a system where it should be easy to obtain the basic copyright
information of an image in a machine readable format, as well as
querying images with a certain copyright state (all images copyrighted
by User:XY, all images licensed CC-BY-SA, etc)

At this moment we only intend to store author and license information,
but nothing stops us from expanding this in the future.

We have put some information in a not so structured way at mw.org [1].
There are some issues open on the talk page [2]. Input is of course
welcome, both here or preferably at the talk page.


Bryan


[1]  http://www.mediawiki.org/wiki/Files_and_licenses_concept
[2]  http://www.mediawiki.org/wiki/Talk:Files_and_licenses_concept

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