Source : Free On-Line Dictionary of Computing

electronic data interchange
     
         (EDI) The exchange of
        standardised document forms between computer systems for
        business use.  EDI is part of {electronic commerce}.
     
        EDI is most often used between different companies ("trading
        partners") and uses some variation of the {ANSI X12}
        {standard} (USA) or {EDIFACT} (UN sponsored global standard).
     
        [{Electronic Commerce Dictionary}].
     
        (1995-10-06)