The Ecommerce System Based On SAP R3

Enterprise business processes will also be involved in a number of applications, so that these systems can be coordinated, but the interfaces and the structures of these applications always differ from each other, which isolates these applications integrated tightly into separated islands. As a result, EAI (Enterprise Application Integration, EAI) technology came into being. EAI refers to the completion of integration of enterprise application systems which work as the different business responsibilities. The system with EAI works as the core system in an enterprise at data exchanging and communication, and it keeps the existing applications and databases work better under the EAI environment. As well known, all information that are recognized as the enterprise resources is recognized again with the other view. It shows that how collaboratively the new business data generated from the new integrated system can work with the existing and what a good effect will be taken. Enterprise integrate a variety of existing information systems with EAI systems, it can speed up the real-time information sharing and exchange of business information response capability. In addition, with the integration level of information higher and higher in our society, the era of e-commerce companies need not only within the enterprise systems integration, as well as the need for supply chain integration of the different parts to this. The EAI is not only to connect business applications within the means of high-performance, it is a business-to-business communication and information sharing to establish a scientific and effective manner. EAI can technical first of all to engage in business transactions between the two sides to create connections, and then the two sides via the Internet to share relevant data and business processes, thus effectively reducing the cost ofthe network.Therefore, EAI technology can be widely applied to the majority of the implementation of e-business and application integration between enterprise.Middleware as an important tool is used in EAI, not only does it act as a binder to connect enterprise applications, but also all the relevant business processes work independently in their own applications. By the middleware enterprise applications and data sources are constructed into a big heterogeneous system, some enterprise application systems, E-Commerce, ERP , CRM, SCM, OA, databases, data warehouses and other important systems can construct a bigger application system and share and exchange data with each other seamlessly.This issue is the EAI case using middleware SAP BC (SAP Business Connector) as a binder to connect ERP and procurement system, it illustrates the application system integration based on SAP BC middleware: E-commerce Purchasing System, including system framework,functions and implemention.