The RBAC Model Studies And Applications In HDPOS5

With the development of computer technology, information system is gradually beginning to spread in enterprise. Access control is not only one of the key methods to solve enterprise information system security problem but also a hot search filed of information security. How legitimate users more secure, convenient, quick access to specific data and reject illegal user access request is an important issue in enterprise information system research, is also the purpose and significance of this paper.Access control is an important technology that is used to protect system resources from unauthorized user access, change, destruction. It is plays an important role in enterprise information system, a good access control management is an important factor in the success of information system. This paper study and research the role-based access control model (Role Based Access Control, RBAC) and develops it, introduced the concept of position and department, put forward an improved position and role based access control model-PRBAC (Position Role Based Access Control) model, through the position and department operations, makes the model more close to complex organizational structure of enterprises and actual situation, convenience to user operate the permissions.This paper takes heading multiple area automatic commerce system (HDPOS5) for example, applied the improved position and role access control model to system, ensure the security of the system.