Research And Application Of J2EE-based ERP System

In the wake of the herald of information age, the rapid development of information technology speeds up the process of modernization of manufacturing industry. And the combination of computer technology and administration advances the formation of modern administration skills. By way of modern administration model and computer information system, modem administration skills aim to give full play to existing equipments, resources, manpower and technology and therefore produce economic benefit to the full.ERP (Enterprise Resource Planning) is emerged based on the development of MRP (Material Requirements Planning) and MRPII (Manufacturing Resource Planning). And ERP is an integrated management information system which aggregates, plans and controls effectively all the resources inside an enterprise to get biggest benefit.With the development of computer technology, the software system architecture adopts Client/Server architecture instead of mainframe architecture, and many ERPs in C/S architecture have made success. Currently, more and more systems move to the 3-tier or multi-tier system because the latter one shows better in scalability and reusability together with the emerging of Web technology, which makes web browsers the de facto client tier of m-tier system.Sun Microsystem Inc. provides J2EE platform for this requirement. J2EE is an architecture which is used to simplify the complications of development, deployment and management of enterprise solutions. J2EE architecture supplies middle-tier integrated framework to satisfy the requirement which needs a little cost but high availablity, high reliability and extensiblity.This thesis presents J2EE-based ERP system. My design partitions the application in three basic conceptual ways:Model-View-Controller(MVC) architecture,multi-tier architecture and traditional modular decomposition. These make the whole system become a multi-tier component system, loose-couple horizontally and vertically, provide flexibility, reusability, testability and extensibility.This thesis consists of three parts. The first part introduces the concept and trend of ERP system. The second part introduces the concept, development and intention ofERP; development of application architecture; concept and architecture of J2EE platform. The third part emphasizes the design and implementation of a J2EE-based ERP system, and presents the J2EE design pattern to optimize system's performance.