Hi, I've uploaded this to the EC Wiki in the Data Modelling section. It's just a rough attempt to represent Gordon's spreadsheet in diagram form in Visio, with lots more work to do even on the elements I've started to model. I've sorted his spreadsheet by the Aggregator / MODS element columns to gather together the [Statement] blank nodes for some of the top level elements. So far I've attempted to begin to model: abstract, accessCondition, classification, genre and identifier. I'd envisage new 'pages' for the elements that may be modelled in MADS so I've created a placeholder example page with a tab for 'titleInfo' which isn't properly modelled as yet. I'm afraid it's my first attempt at using Visio so it's very rough around the edges, but I thought that most people might have access to a copy of it so it might be a useful tool. Also, as I said earlier, I'm just attempting to replicate what we have on the spreadsheet at present so as we re-model and make decisions we would have to update it as we define our classes and properties or domains and ranges. Jan Jan Ashton Metadata Services T +44 (0) 1937 546603 [log in to unmask] The British Library Boston Spa WETHERBY West Yorkshire LS23 7BQ www.bl.uk <http://www.bl.uk/>