To safeguard patient privacy, the PODS design USES a multilevel security model.
为了保护患者隐私，PODS的设计采用一个多级安全模型。
The paper proposes a dynamic multilevel security model based on belief, which integrates the belief mechanism and multilevel security model.
把信任机制与多级安全模型相结合，提出了一种信任动态多级安全模型。
The features of multilevel security of database, such as its integrity, security and serviceability, are analysed both in depth and in width by way of a multilevel security model illustration.
介绍了多级安全数据库的完整性与保密性，展示了多级模型，从深度和广度探讨了数据库的多级安全问题。
Security policy of multilevel security DBMS is expressed by many models. One of them is access control model.
多级安全数据库的安全策略需要各种模型来表达，访问控制模型是其中之一。
The integrated model can simplify administration of privileges, and is appropriate for multilevel relation database system which has many users or complex security levels.
该模型方便了管理员的权限管理，适合用户较多，安全层次比较复杂的多级关系数据库系统。
In this paper, we proposed a formal security database system access model including a multilevel relation model and a element-level authorization.
提出了一个安全数据库访问控制模型，包括一个多层关系模型和一个用以增强自主访问控制能力的元素级粒度的授权。
Through the noninterference theory, it is proved that the model meets multilevel security policy.
通过不干扰原理对模型的安全性进行了证明。
Through the noninterference theory, it is proved that the model meets multilevel security policy.
通过不干扰原理对模型的安全性进行了证明。
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