Is it just me, or is there something wrong with how the "orgpeoplemembership" box was drawn? Apart from that, it seems to work nicely -- it's awfully big, but then so is the schema... (I guess I would have preferred a different way to draw the lines and arrow symbols for the foreign-key dependencies -- having the lines look more like those in the OP's image, extending horizontally from each box where the field in question in printed -- but that's just a nit-pick.)