X12 provides for electronic exchange of business transactions-electronic data interchange (EDIElectronic Data Interchange (EDI) is a standard format for exchanging business data. The standard is ANSI X12, developed by the Data Interchange Standards Association. An EDI message contains a string of data elements; each represents a singular fact... More). The American National Standards Institute (ANSI) chartered the Accredited Standards Committee (ASC) X12 to develop uniform standards.