EDI(Electronic Data Interchange)，electronic data interchange is an international standard introduced by the international organization for Standardization (ISO). It refers to a commercial or administrative transaction processing, according to a recognized standard form to structure the transaction or message format, from computer to computer and electronic transmission method, the computer can identify the language of business. All walks of life have developed dozens of industry standards, the application is very complex. LinkEDI has developed a set of technical framework compatible with various standards, and fully realized the international and domestic standards of X12, EDIFACT and so on.