Electronic Data Interchange is the transmission of structured data directly from one computer system of one organization to the computer system of another organization.
Overview
EDI is defined by the National Institute of Standards and Technology as "the computer-to-computer interchange of strictly formatted messages that represent documents other than monetary instruments. EDI implies a sequence of messages between two parties, either of whom may serve as originator or recipient. The formatted data representing the documents may be transmitted from originator to recipient via telecommunications or physically transported on electronic storage media."
Standards
Currently there are four major sets of EDI standards:
TRADACOMS
ODETTA