电子税务信息系统中权限控制的设计与实现

Design and Implement of Authorization Control for E-Tax Information System

权限管理和访问控制是电子税务信息系统的重要组成部份，它关系到整个系统的安全性和可靠性，如何对系统的权限进行规划并设计出一个有效的权限管理系统，是电子税务信息系统成败的关键。本文首先描述了现有的权限控制模型的特点．然后结合电子税务系统的特点，介绍了一种基于角色、部门、岗位和用户的四层次的访问控制模型和实现方法。

The authorization management and access control is an important component of e-tax information system. It influences the secu- rity and reliability of the application. To plan and design a effectively authorization system is the key to success with e-tax information system, The paper describes the characteristic of model existed of authorization access control,According to the features of e-tax system, a kind of four layers access control model and implement method are discussed,