Three-tier Architecture In The Enterprise Information System Applications

At present, Enterprise Information System is one of the significant aspects in computer application field. In order to conquer its instability due to environment and the demand of enterprises and enhance its flexibility and quality, EIS is required to own very strong adaptivity.The application of enterprise information system has many characters such as large number of customers, vast data and concentrated affairs. The core part is a application system of distributed-type with variable scale. The development ideology of three layers structure is the basis of information application in enterprise. The division of viewing layer, business layer and data layer provide the developing people with larger flexibility for development of application program. The author of this thesis comprehensively use JSP, JavaBean, JDBC, Socket API and multi-thread etc. technology, utilizing the analysis and design method of interface objects, based on software development way of component, decompose the business logic parts of application program into multi-parts and provide a distributed-type solution scheme based on Java flatbed for the application of enterprise information system.The development ideology of three layers structure has been successfully applied to Product Management System of Jilin Destuff Factory and was given high prize .