Out of interest is anyone aware of use cases, perhaps similar to the use cases used in JISC's IE functional model, for catalogues and opacs?(http://www.ukoln.ac.uk/distributed-systems/jisc-ie/arch/functional-model/) Perhaps it would be useful to define some if they do not already exist? Tim ---------- Tim Hodson http://informationtakesover.co.ukReceived on Thu Jun 08 2006 - 09:34:41 EDT