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I believe you are correct. The ils-di stuff is just kind of a framework starting point, not (yet) a complete end-to-end standards-constrained solution. I believe you will find my thoughts and experiences on this issue helpful. My own circumstances did not involve collection-level anything, but I still ended up using an unholy mish-hash of several abused metadata formats to express what I needed. http://bibwild.wordpress.com/2009/09/10/dlf-ils-di-dlfexpanded-service-for-horizon/ http://bibwild.wordpress.com/2009/07/31/exposing-holdings-in-dlf-ils-di-standard-format-web-service/ Owen Stephens wrote: > I'm working with the University of Oxford to look at integrating some library services into their VLE/Learning Management System (Sakai). One of the services is something that will give availability for items on a reading list in the VLE (the Sakai 'Citation Helper'), and I'm looking at the DLF-ILS GetAvailability specification to achieve this. > > For physical items, the availability information I was hoping to use is expressed at the level of a physical collection. For example, if several college libraries within the University I have aggregated information that tells me the availability of the item in each of the college libraries. However, I don't have item level information. > > I can see how I can use simpleavailability to say over the entire institution whether (e.g.) a book is available or not. However, I'm not clear I can express this in a more granular way (say availability on a library by library basis) except by going to item level. Also although it seems you can express multiple locations in simpleavailability, and multiple availabilitymsg, there is no way I can see to link these, so although I could list each location OK, I can't attach an availabilitymsg to a specific location (unless I only express one location). > > Am I missing something, or is my interpretation correct? > > Any other suggestions? > > Thanks, > > Owen > > PS also looked at DAIA which I like, but this (as far as I can tell) only allows availabitlity to be specified at the level of items > > > Owen Stephens > Owen Stephens Consulting > Web: http://www.ostephens.com > Email: [log in to unmask] > Telephone: 0121 288 6936 > >