On Thu, Apr 9, 2009 at 10:37 PM, Bill Dueber <[log in to unmask]> wrote: > This is hard stuff. But it's worth doing right. +1 The issue here isn't about serializations or transmission formats. It's about data modeling. Our current bibliographic data model is horribly inefficient, with antiquated design ideas and far too rigid to handle the explosion in information sources, and that has nothing to do with ISO 2709 (although the byte limit might). Then there's the actual inventory control data model... -Ross.