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Permission-Based Delegation Model (PBDM) is a flexible model for delegation of authority in RBAC. It supports permission level delegation through temporary delegation roles. Multi-step delegation is also supported. However, constraints for PBDM have not been investigated in the literature, and it is not secure for a system to employ PBDM without constraints considered. We present a Constraints model...
The seamless combining with context-aware sensors and numerous devices and e-home server will soon become a part of our home environment in the near future. We name it as a context-aware home based on ubiquitous computing concept. This context-aware home reduces participations of users in order to realize a ubiquitous computing and automates various services. Therefore, the risk of privacy violation...
In order to solve the existing problems of Modern service Operation Support System (MOSS) in Modern Service industry, such as lacking of intelligent decision-making capability, this paper brings us a group of business intelligent operation modes. Firstly, this paper presents a prediction and clustering operation mode for the enterpri.se users, so as to help the sellers to manage operating status to...
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