实现全球电子数据交换的一大障碍是缺乏这方面的统一的标准。联合国的行政、商业和运输电子数据交换标准(UN/EDIFACT)对于贸易、运输和支付过程的所有环节建立了统一的处理原则,从而消除了这个障碍。联合国批准的电子数据交换(EDI)标准是按统一格式进行的计算机对计算机的商业文件交换。这一全球市场在其迅速走向成熟的过程中的一个重要阶段是UN/EDIFACT海关信 A major obstacle to the global exchange of electronic data is the lack of uniform standards in this area. The UN’s Electronic Data Interchange, Administrative, Commercial and Transport Standards (UN / EDIFACT) eliminates this barrier by establishing a unified approach to handling all aspects of the trade, transport and payment processes. The United Nations approved electronic data interchange (EDI) standard is a computer-to-computer commercial document exchange in a uniform format. An important phase of this global market in its rapid maturing process is the UN / EDIFACT customs letter