【作者】 喻东；

【导师】 周小兵；

【作者基本信息】 北京工业大学 ， 计算机软件与理论， 2002， 硕士

【摘要】 企业数据交换如同企业信息系统的动脉，可靠而高效的企业数据交换是企业提高商务效率、降低运作成本、增强企业竞争力的基础。本文将企业数据交换分为企业内部数据交换和企业间数据交换两个部分分别论述，讨论了两种数据交换的特点、技术和实现方法，并详细论述和比较了当前主流的B2B数据交换标准。 论文以CWMMIS信息管理系统为背景，详细的论述了如何以EDI系统为基础构建一个同构的分布式企业内部数据交换系统。该系统将数据交换分成应用单据生成、处理，以及底层数据传输两层来实现，同时讨论了通过拨号专网技术对底层EDI数据传输系统进行替换的平滑升级方案。 在企业内部数据交换的实践基础上，本课题组设计并且部分实现了一个适合国内零售业供应链的B2B商务实验平台EDIMQ。该系统提供了大中型企业即存MIS系统之间的数据交换平台，并且为没有信息系统的小型企业提供了Internet接入方案。该系统底层数据传输在逻辑上仍类似于EDI商用信箱，但屏蔽了具体的数据传输方式。该系统应用层采用端到端的数据交换方式，参与数据交换的企业自己定义相互之间的数据转换。为了便于与即存MIS系统数据库交互，本课题组在该系统中定义了epXML应用层数据标准，该标准使用了消息内嵌数据库表结构和数据块的数据表示形式。本课题组同时定义了一套数据标准转换模版机制和一个翻译器epTranslator，使数据在不同MIS数据库之间的自动转换成为可能。更多还原

【Abstract】 Enterprise data exchange is like the artery of the enterprise information management system. Credible and efficient enterprise data exchange is the base for an enterprise to increase efficiency, reduce cost and improve competitive ability. In this paper, we separate the enterprise data exchange into two parts, one is internal enterprise data exchange, the other is enterprise data exchange inter enterprises. We discuss the two type of data exchange about their characteristics, techniques and implementations. We also give comments and comparison about the major B2B data exchange standards.This paper first describes how to build a homogeneous distributed data exchange system on the base of EDI System(electronic data interchange), which implements on the background of CWMMIS Information System. The data exchange system build in an hierarchical architecture which comprise of two layers, the upper is the creation and manipulation layer for the application data, and the lower is the bottom data transport layer. Meanwhile, the paper gives a dialing private net solution to upgrade smoothly the bottom data transport layer (EDI system).The latter part of paper focus in an experimental B2B electronic business platform with the name EDIMQ, our project team designs it and implement core parts of it on the base of the practice of the research of internal data exchange. The EDIMQ system is aimed to provide a data exchange platform for variant enterprise Management Information System, and provide a Internet access solution for the small enterprise without its own information system. Logically, the EDIMQ system’s bottom data transport system works like traditional EDI business mailbox, but it screen the different implementation method and make it perspective to upper application layer. The upper application layer’s data exchange is peer to peer, that is to say, the data transformation should be defined between the trade partners themselves. For convenience to interchange data with legacy MIS database, the EDIMQ system defines an application layer data specification named epXML, which need epXML document or data flow contains the data in the form of database table structure and data block. The EDIMQ system also defines a data transformation template mechanism and a translator we call epTranslator, to make it possible to transform data among different MIS database automatically.更多还原