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就电子商贸的关键技术——电子数据交换（ＥＤＩ）展开讨论，针对ＥＤＩ和电子数据处理（ＥＤＰ）的接口问题，分析了国际通用的ＵＮ／ＥＤＩＦＡＣＴ格式化数据标准，并结合ＥＤＰ应用系统的数据结构，讨论了ＥＤＩ实际应用报文的生成方法，阐述了ＥＤＩ与ＥＤＰ数据映射的工作原理，介绍了基于各种数据库管理平台的ＥＤＰ应用系统进行数据映射通用软件结构设计的思想，文中最后给出了ＥＤＩ与ＥＤＰ自动映射的软件原型系统。
This paper discusses the interface of EDI and EDI which is the key technology of e-commerce, analyzes the UN / EDIFACT formatted data standard which is universally used in the world, and combines the data of EDP application system Structure, discusses the method of generating EDI practical application message, expounds the working principle of EDI and EDP data mapping, and introduces the idea of EDP application system based on various database management platform for data mapping universal software structure design. Finally, EDI and EDP automatically mapping software prototype system.