United Use of Heterogeneous Database Based on Role
Xueyan Song · Jisuanji gongcheng · 2004
One of the most challenging problems in heterogeneous database system is the complexity of security administration. The RBAC(role-based access control) method shows powerful capability on access control. This paper presents a Role-based access control model for united use of heterogeneous database system based on M-W (mediator -wrapper) construction. The RBAC wrapper is researched deeply and R-D wrapper and R-M wrapper is designed. The model is applied to information integration for some enterprise. It is proved by practice that the model fit heterogeneous database well and it fetch up the deficiency of research on heterogeneous database access control..