It's about time we start drafting the actual ontology for xesam. Although the actual method of describing the fields is still in heavy debate we can still start drafting. To this end I nailed down an *intermediate* way of doing this. I've updated the wiki page <a href="http://wiki.freedesktop.org/wiki/XesamMetadataFieldsDraft">http://wiki.freedesktop.org/wiki/XesamMetadataFieldsDraft</a> with a description of the *intermediate* way of drafting the ontology as well as some simple guidelines for the actual design of it. Basically we have four desktop ontologies that I know of: Strigi: <a href="http://websvn.kde.org/trunk/kdesupport/strigi/src/streamanalyzer/fieldproperties/">http://websvn.kde.org/trunk/kdesupport/strigi/src/streamanalyzer/fieldproperties/ </a> Tracker : <a href="http://svn.gnome.org/viewcvs/tracker/trunk/data/services/">http://svn.gnome.org/viewcvs/tracker/trunk/data/services/</a> Spotlight: <a href="http://developer.apple.com/documentation/Carbon/Reference/MetadataAttributesRef/index.html"> http://developer.apple.com/documentation/Carbon/Reference/MetadataAttributesRef/index.html</a> Nepomuk: ? I couldn't find one... Sebastian, Jos, Phreedom? I've looked a bit into these and I think the Strigi one is the one closest to what I had in mind. It has received a lot of thought and seems generally coherent. It would be ideal to store the ontology drafts in a VCS, but we have none yet - I don't know if the wiki would be disastrous or not... Any ideas on a temporary storage idea until we get a subversion module at fdo? Cheers, Mikkel PS: There has been some IRC discussions on #xesam@FreeNode, so if you really feel like chiming in on this you could hang out there as well as on this ML. Any important debates will of course go through the mailing list still.