Syndication/formats/feedheader

<?xml version="1.0" encoding="utf-8"?>
<rss version="2.0" 
 xmlns:atom="http://www.w3.org/2005/Atom"
 xmlns:s='http://www.steeple.org.uk/wiki/feeds/v0.1'
 xmlns:media="http://video.search.yahoo.com/mrss"
 xmlns:cc="http://backend.userland.com/creativeCommonsRssModule"
 xmlns:georss="http://www.georss.org/georss"
 xmlns:gml="http://www.opengis.net/gml" >
 
 <title>A podcast from the Physics Department at the University of Oxford</title>
 <atom:link rel="self" href=".../this_feed.xml"  />
 <atom:link rel="alternate" href=".../some_page.html" />
 <guid isPermaLink="false">urn:uuid:...</guid>
 <s:id>uk.ac.ox/...</s:id>
 <pubDate>2009-09-13T23:55:18Z</pubDate>
 <author>
 <name>OXITEMS, University of Oxford</name>
 <email>oxitems@...</email>
 </author>
 <description>This is the podcast of the physics departement from Oxford University</description>
 
 <atom:category scheme="http://purl.org/steeple/organisation" label="Oxford University" />
 <atom:category scheme="http://purl.org/steeple/division" label="Section of Physical Sciences" />
 <atom:category scheme="http://purl.org/steeple/department" label="Physics Department" />
 <atom:category scheme="http://purl.org/steeple/group" label="" />
 
 <media:thumbnail url=".../physics.jpg" width="75" height="50" />
 
<!--
Does this feed represent a course?
 
Normally this would be done at feed level, but it can be added at item-level if the rss feed describes several courses (or the rss is the result of a search).
 
To indicate what this feed/item is, we provide a category. If the feed represents a course, we add term="course" which uses
<media:title s:type="course"> / description as course title, or, if not present, uses title / description from the feed.
 
NOTE: The course/playlist/series/collection is relative to the finest grain organisation/division/department.  I.e. if just organisation is specified above, the course is releative to the organisation (i.e. organisation-wide). If an organisation/department/group is specified, a course/series/collection/playlist is a playlist specific to that group. (Need to see whether this is too restrictive in the long term.)
 
These items are based on ARCA.
 
<source lang="xml">
-->
  <atom:category scheme="http://purl.org/steeple/feedtype" term="course" label="course" />
 
<!--
Possible terms: course, series, collection, playlist
 
Series / course. A course is a series of lectures that follows a definite syllabus, 
and would typically have the same lecturer throughout. A series is a loose collection,
that relates to a series of events (such as a distinguished lecture series), or is regular podcast.
A non-specified grouping is a collection (that doesn't imply any particular order). If an order is 
implied, playlist can be used.
 
Title: The title at feed level can be omitted, because the feed title can be used. If the course is specified
at item level, a title needs to be present.
-->
 <media:title s:type="series">An item in our demo series</media:title>
 <media:title s:type="course">The title</media:title>
 <media:title s:type="collection">The title</media:title>
 <media:title s:type="playlist">The title</media:title>
 
<!--
A specific description and images can be added. Again, at feed level, the other descrpition/images can be used. At item level,
they need to be present.
-->
  <media:description s:type="course">Además del calentamiento global, el cambio climático implica cambios en
            otras variables como las lluvias globales.</media:description>
  <media:image s:type="courseimage">http://foo.es/images/thumbs/clima.jpg</media:image>
  <media:image s:type="coursebanner">http://foo.es/images/banner_clima.jpg</media:image>
<!--
  A link for series/course/collection/playlist can be provided.
-->
  <atom:link rel="http://purl.org/steeple/courselink" href="..." />
<!--
If an item is part of several groups (each of which have just a title), use
-->
 <media:title s:type="playlist" s:href="...">An item in our demo series</media:title>
 <media:title s:type="playlist" s:href="...">An item in our other demo series</media:title>
<!--
If these items all have descriptions, use <media:group> to group them.
 
Alternative: <media:category domain="http://purl.org/steeple/cscp/course" label="my course title">the term of this course, e.g. course identifier</media:category>
-->
 
</rss>