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RBAC (role-based access control) has been widely investigated and adopted for its simplicity and effectiveness. However, there still exist some defects in it, including: (1) traditional RBAC does not consider time and context factors. (2) traditional RBAC only defines a simple logical relationship among roles and permissions, which makes it incompetent to solve authorization problem for large-scale...
To improve adaptability and flexibility of heterogeneous database integration system, the paper proposed a heterogeneous database integration framework based on Web services composition which is implemented by Web services composition template. The paper also adopted granular computing to optimize Web services composition to improve efficiency and quality of heterogeneous integration systems. The...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.