From Steeple

The Metadata scheme comparison is a joint project between Steeple and the Opencast Community.

Mission statement

The group is to look into various metadata schemes to describe audiovisual media in order to

- exchange knowledge and experience,

- harmonize and map across various schemes and thus

- foster the exchange of media objects across institutional barriers.

People:

• Nils Birnbaum, University of Osnabruck,
• Christopher Brooks, University of Saskatchewan,
• Bjoern Hassler, Cambridge University
• Brit Hörmann, ETH Zurich
• Olaf A. Schulte, ETH Zurich
• Frans Ward, SURFnet

Contents 1 Metadata scheme comparison (MSC) 2 The abstract elements 3 Expression in syndication formats 4 XML scheme comparison (Matterhorn vs. Virtpresenter vs. Surfmedia etc.) 5 Full table 6 For admins

[edit] 1 Metadata scheme comparison (MSC)

We start with a set of abstract elements (such as title, description, etc). These aren't proper xml elements: they just characterise the sort of thing we want to express in our xml scheme. We then take these abstract elements, and express them in various metadata standards.

In particular, we ask two questions:

• How are our abstract elements expressed in various xml schemes in use in other systems (i.e. Replay, Matterhorn, virtpresenter, etc.)
• How are our abstract elements expressed in common syndication formats, such as rss/atom/yahoo media?

IMPORTANT: Please also see have a look at Related Efforts!

[edit] 2 The abstract elements

These are the abstract elements: id (edit), type (edit), title (edit), creator (edit), contributor (edit), abstract (edit), description (edit), subject (edit), institution (edit), place (edit), spacetime (edit), time (edit), collection (edit), size (edit), publisher (edit), language (edit), created (edit), modified (edit), available (edit), valid (edit), oldversion (edit), newversion (edit), license (edit), rightsholder (edit), mediacontent (edit), mediadistribution (edit), relatedinformation (edit), linkedmetadata (edit), timedimages (edit), subtitles (edit), timedkeywords (edit), chapters (edit), and timeddescription (edit)

Alphabetically: abstract (edit), available (edit), chapters (edit), collection (edit), contributor (edit), created (edit), creator (edit), description (edit), id (edit), institution (edit), language (edit), license (edit), linkedmetadata (edit), mediacontent (edit), mediadistribution (edit), modified (edit), newversion (edit), oldversion (edit), place (edit), publisher (edit), relatedinformation (edit), rightsholder (edit), size (edit), spacetime (edit), subject (edit), subtitles (edit), time (edit), timeddescription (edit), timedimages (edit), timedkeywords (edit), title (edit), type (edit), and valid (edit)

[edit] 3 Expression in syndication formats

We now ask: How are our abstract elements expressed in common syndication formats, such as rss/atom/yahoo media?

See this table: Msc/SyndicationFormat: Abstract elements vs. expression in common feed formats (atom, rss, yahoo media etc)

[edit] 4 XML scheme comparison (Matterhorn vs. Virtpresenter vs. Surfmedia etc.)

We now ask: How are our abstract elements expressed in various xml schemes in use in other systems (i.e. Replay, Matterhorn, virtpresenter, etc.)

See this table: Msc/StandardsComparison:

Abstract elements vs. expression in common metadata formats (dublin core, LOM, mpeg-7)

[edit] 5 Full table

The full table is here: FullTable

[edit] 6 For admins

(For admins: Templates.)