Negotiability:
Legal attribute of a document that permits a party so entitled to transfer rights to another by delivery of the document duly endorsed (signed) by the former. Network Architecture:
Reference used for the definition and development of protocols and products for interworking between data processing systems, often used to define a hierarchy of communication function layers.

Network:
The interconnection, through telecommunications links, of computers and terminals in different locations. Also, a network is a third-party mailbox service that can be accessed by EDI customers to send/receive data.