Hierarchical empowerment model research of the complex government affair information system

Under electronic government affair circumstance, task is always executed by users, posts or roles. And in the complex government affair information system, users and posts face more than one management information system, and there are different demand and execution for each subsystem. So, it may result in a redundant or repetitive resource assignment and a heavy work load if assignments between each post or users and roles are not constrained by any condition. Furthermore, task is not executed singly but many sub-tasks are done one by one, and there is logical relation among them. As things are, the architectures of access control concern less about ensuring execution process being logical and constrained. To function effectively, authorization system must be integrated with organization management system and business system. Therefore, a model is proposed based on business process and gradation role. Then the concepts of post and authorization-operation are logically abstracted. And also, the maintenance of roles and authorization resources, as well as the combination with organizational management and business are discussed. Finally, a simple method to implement the model is proposed in emergency field.