There are many preconditions to realize EDI. First of all, there must be compatible software and hardware facilities, including software and hardware equipment supporting EDI transmission, and sufficient computing and storage resources. Secondly, it is necessary to adopt standardized data formats, such as ANSI X 12 and EDIFACT, to ensure that the information between different systems can be correctly interpreted and processed. Stable network connection is the basis of EDI, which ensures the timely and accurate transmission of data. It is also necessary to establish EDI agreements with trading partners, and clearly stipulate the format, standards and processes of data exchange. In order to ensure the security of data transmission, security measures, such as encryption technology and security protocols, must be taken to prevent data leakage or unauthorized access. At the same time, EDI practice needs to comply with the laws and regulations stipulated by relevant industries and governments, especially the provisions on data protection and privacy. Continuous maintenance and support is the key to ensure that EDI system adapts to the latest technical standards and business needs. In order to use EDI system effectively, employees need to receive necessary training and establish a technical support mechanism so that problems can be solved quickly when they occur.