Owen mentioned the Talis (now Capita Libraries) model. If you'd like more info on that, our tech lead put his slides from the Linked Data in Libraries event online at: http://www.slideshare.net/philjohn/linked-library-data-in-the-wild-8593328 They cover some of the work we've done, approaches taken and some of the challenges (in both released and as yet unreleased versions of the model). For some context, the Prism data model is used on some 70 or so University and local authority catalogues in the UK and Ireland. Any item in those catalogues can be accessed as linked data by appending the appropriate file type (.nt, .rdf or .json) to the item uris (or .rss to search uris), for example: http://catalogue.library.manchester.ac.uk/items/3013197.rdf Hope that's helpful. Matt Machell Senior Developer, Prism 3 - Capita LIbraries Me: http://eclecticdreams.com Work: http://blogs.talis.com/prism