Research On Organizational Collaboration Oriented Access Control Model In E-government

The e-government system is the combination of government affairs and modern information and communication technology. E-government technology applies and embodies the newest development in information and communication technology.With the continuous development of information and communication technology, informationization and industrialization are integrated in high-level. The construction of e-government system has been importantly impacted, and the development trend of electronic government system is form a single, small-scale information system to large-scale, multi-application distributed and cluster information system. The system complexity is increasing.The e-government system has high security requirements, so how to ensure information systems, particularly the security of e-government systems has become a hot research field both at home and abroad.In the information security research field, access control model and authorization management system occupies an important position, in which most of the research is based on the technology perspective, and lacking of the combined approach to research, which is the combined organization theory and engineering two perspectives.In the government's organizational structure, there are higher and lower vertical organization, the existence of similar lateral organizations, and within an organization, there are different departments, in different organizations and different departments within the same organization exists collaborative relationship. Existing security authentication and authorization system are difficult to achieve in different organizations, different departments and different business systems for security authentication, authorization management, and business collaboration requirements.To address multiple sector collaboration between multiple organizations access control and authorization issues in e-government systems, this paper researched on access control theory and related technologies firstly, than studied and analyzed the organization and organizational collaboration, especially in e-government system. From the dual perspective of technical and organizational theory to research the access control model, and to research the security policy of the collaborative electronic government system. Based on role network model and OB4LAC, expanding the OB4LAC model. Organizational collaboration oriented access control model-OB4LACC and its administration model AOB4LACC have been proposed. The model has been formalized and defined and using formal language. In OB4LACC model, the concept of virtual position was been introduced. Collaboration mostly needs sharing the information object.The organization's security collaboration was realized using virtual position. Finally, we applied Struts, Hibernate etc J2EE structure and realization technology to analysis and design an e-government system, and strengthened the e-government system security, made e-government system have high scalability and availability.