地理信息系统技术已经成为电子政务建设中的一个重要组成部分。本文结合电子政务流程化的特点探讨了电子政务GIS的权限管理．将电子政务系统中的GIS权限分为非流程权限和流程权限。提出了角色、业务及动态流转中都可具有GIS的功能和数据权限。重点分析了基于业务流程的GIS访问控制,通过角色设定业务功能模块,业务实例化形成动态的业务,通过实例化业务规则确定GIS权限,通过业务流转指定动态权限继承的权限模型框架。采用分层权限管理模式以及权限包进行GIS权限的“访问验证”和“访问控制”,实现了权限按需、按流程分配,而权限的分配与回收由系统动态实现。

GIS has become an important part of E-government. Firstly, this paper probes into the authority limits management of E-government GIS based on workflow, and divides it into non-authority limits of workflow and authority limits of workflow. Secondly, the author puts forward that the role, business and the dynamical flow of work all can have GIS function and data authority limits. Thirdly, the paper analyzes the access control of E-government GIS, and based on the analysis, the author designs the work function module according to the role, forms dynamical work used by work instantiation, specifies the GIS authority limits of the work instantiation's rule, and conforms the authority limits frame of dynamical authority limits inheritance using workflow. Finally, this paper realizes the authority allocation according to the requirements and process, the allocation and canceling of the authorities are realized by the system dynamics.