| ERP is a higher management pattern for modern Enterprises to step into internationalization in the information age. It has represented the highest level of the current integrated software system of business management. ERP is the managing thought that is exactly to the supplying chain of Enterprises, and it can make all the links on the chain managed effectively. It can also help Enterprises to improve productivity, to reduce the costs of finished products, and to increase capital utilization rate. It offers basic data to support the developing decisions which are made by leaders. Consequently, the Enterprises are able to improve the competition capability in markets from inland to over seas.It is only a short time since the existing of ERP, so it needs time to be developed and to be perfected, especially to be perfected continuously with the change of management concept and the development of IT. The construction of ERP System is an important content of the researchs on ERP System. ERP system construction is divided into function construction and software architecture construction, and the later plays a decision role on the former. Therefore, it is very significant to study on software architecture of ERP System.In this paper, the inherent limitations of ERP System which was developed based on traditional two-tier Client/Server model are analysed. To construct function Objects of ERP System, the benefits of design pattern for ERP System construction are used and Contract Pattern is applied. And then an ERP System with advanced Browser/Server software architecture is constructed.In the end of this paper, we provide an example of the logistic equipment information management of court to explain the application of contract pattern in the instance system construction phases of ERP. This example proves that the contract pattern theory is efficient and effective in the system analysis, design and other ERP system construction tasks. |
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