The article provides answers to questions about electronic data interchange (EDI) and Accredited Standards Committee (ASC) X12 standard. EDI refers to the exchange of data or information between a sender and receiver via electronic means, usually over phone lines, from one computer to another without the use of printing or paper to accomplish this exchange. X12 refers to the ASC X12, which is accredited by the American National Standards Institute (ANSI). Another ANSI-accredited standards developer is the National Information Standards Organization (NISO). NISO standards are aimed at libraries, information science and publishing. They tend to be related to data within that industry which identifies and describes bibliographic material, whereas X12 standards deal with business transactions. NISO and ASC X12 are similar in that both organizations are accredited by ANSI. However, they differ in that NISO is industry-specific, whereas X12 is general in its scope. NISO members include libraries, computer manufacturers, system vendors, publishers, research organizations, book and serial suppliers, networks and consultants. X12 members include organizations from industry groups such as transportation, banking, manufacturing, health and retail, federal and state government agencies, educational and financial institutions and trade associations. ANSI ASC X12 was formed for the purpose of exchanging business transaction data over telecommunications connections between computers operated by trading partners. The impetus for using X12 in the information industry instead of developing industry-specific standards under NISO was started by members of the Book Industry Systems Advisory Committee in may 1989.