Com +-based Erp System Architecture Theory And Applied Research

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.On the basis of the Software Architecture and COM+, this paper analyzed some problems that faced by traditional ERP System, which based on Two-Tier C/S pattern. And the ERP System Architecture based on COM+ and Three-Tier C/S pattern is designed to solve these problems.The twenty-three kinds of classical design pattern were introduced simply. It can easy the systems analysis and design to decompose a complicated system into some simple sub systems by using a design pattern named Facade when we construct ERP System frame. The compatibility problem between the new System and the old System can be solved by using the Facade.This dissertation proposed the ERP System construction theory was based on Contract Pattern theory. Contract Pattern System is an ERP System construction theory in view of Dynamic Enterprise model. It applies event-participation model and Contraction Relation abstract System to construct the ERP System construction frame and Dynamic Enterprise model.This dissertation classifies the entity objects of enterprise System into structural objects and contract objects. The enterprise information structure is defined with structural objects and the relationship of activity objects is described with contract objects. The basic principle of enterprise business process constructed through multiple contracts relation is discussed.In the Event-Participant Model, A structural object is abstracted as an event, and it's related structural objects are abstracted as participants. Through the structural objects' Event-Participant relation, the structural units of Enterprise and ERP System are depicted in general form.In the end of this dissertation, an example of the inventory management System was provided to explain how to analyze and design the subjects by utilizing ContractPattern. And the working mode among subjects was also explained. Using the subjects that designed to construct the COM+ components can realize the ERP System Architecture based on Three-Tier C/S model.