EDI stands for Electronic Data Interchange and is the direct communication of trading messages between computer systems, using national and international telecommunications networks. EDI trading messages can be as basic as orders and invoices, but EDI can also develop into a much more sophisticated information exchange, so that trading partners manage their whole supply chain more effectively.
http://www.editeur.org The trade standards body for the global book and serials supply chains
/index.cfm?doc_id=201 ONIX information from the APA
http://www.aba.org.au the Australian Booksellers Association
http://www.pacstream.com.au PacStream electronic ordering
http://www.pubnet.org PubNet electronic ordering