Upgrade ERP from C/S to B/S based on Web service

Every business or government agency needs to track information regarding their finances, their employees, and the items or assets they own and manage. Software applications that track this type of information are called enterprise resource planning (ERP) systems. Managing these assets in an integrated application allows an organization to have a consistent view across the entire enterprise. This enterprise-wide view allows ERP systems to go beyond the traditional transaction-based accounting systems maintained at the organization level and deliver fully integrated financial and human capital management based on industry-derived best practices across organizations. In response to the pressures of global competition, enterprises today are forging ahead with the mission of integrating information systems across corporate boundaries to unite customers, suppliers and any other business partners with which they interact. And in the mean time, with the development of the society, more and more people have to go many places because the job makes them and working at home also becomes more and more popular. Those people who are not at the place of their company also want to continue their work in other places even at home. The old style ERP system is in C/S model and cannot satisfy with the needs. So it is very necessary to upgrade the ERP system. This paper will go to figure out the application of the Web service in the upgrading of ERP system. In this paper, we focus on that how to upgrade or renew a C/S ERP system to an ERP system with B/S model and the application of Web service. We use the J2EE architecture and XML technology to provide Web service and upgrade/renew the former ERP system. UML tools play a very important role in the upgrading procedure. We use UML to analysis and design the B/S ERP system, which based on the C/S version. We use JSP to act as the view of the system because of its flexibility. In the Web service, the XML is necessary. So the XML technology is also used. In the end of the paper, we will figure out how these technologies to be used through a concrete example.