Development And Application Of User Authority Management System Based On RBAC

Management of user authority is an important component of most application systems, and the effective control of authority guarantees the success of deployment of application systems. The research of this thesis is started and implemented based on the demand of access control of "Assembly Digital System".Assembly Digital System (ADS) is a management system of assembly work for aero-engine assembly factory. The system consists of several relatively unattached subsystem. It covers the whole procedure of aero-engine assembly and has many related users and departments. In order to control the access of all subsystems and related resources, it is obligatory to develop an effective user authority management system. The main work of this thesis is as follows:1. The enterprise in which the ADS is applied and deployed is investigated practically and the requirement of user management and access control of the system is analyzed and summarized.2. Based on the model of Role-Based Access Control (RBAC), the class library and database of authority management are designed. An authority management application is developed, and the system administrator can use it to implement user management and authority assignment flexibly. Authority management system is designed based on 3-tier application model and Client/Sever network architecture, which enhances the maintainability and extensibility of system.3. In order to integrate authority management system into ADS, the interface of authority system is developed. The all subsystems of ADS can invoke it to realize effective access control of system conveniently.4. According to the factual requirement of ADS, some assistant functions related to user and system security are provided, for example, message communication and system log.