A model of authorization for next-generation database systems
A model of authorization for next-generation database systems
复制标题
下一代数据库系统的授权模型
DOI：
--
复制
发表时间：
1991
期刊：
影响因子：
--
通讯作者：
D. Woelk
中科院分区：
文献类型：
--
作者：
F. Rabitti;E. Bertino;Won Kim;D. Woelk
传统的授权模型是为支持数据的层次、网络和关系模型的数据库系统设计的。然而，这些模型对于支持更丰富的数据模型（包括面向对象概念和语义数据建模概念）的下一代数据库系统是不够的。Rabitti，Woelk和Kim [14]提出了一个初步的授权模型，用作此类数据库系统中授权机制的基础。在本文中，我们提出了一个更全面的授权模型，填补了一些主要的空白，传统的授权模型不能填补下一代数据库系统。我们还进一步形式化的隐式授权的概念和完善的应用程序的隐式授权的概念，面向对象和语义建模的概念。我们还描述了一个用户界面使用的授权模型，并考虑在实现授权模型的关键问题。
The conventional models of authorization have been designed for database systems supporting the hierarchical, network, and relational models of data. However, these models are not adequate for next-generation database systems that support richer data models that include object-oriented concepts and semantic data modeling concepts. Rabitti, Woelk, and Kim [14] presented a preliminary model of authorization for use as the basis of an authorization mechanism in such database systems. In this paper we present a fuller model of authorization that fills a few major gaps that the conventional models of authorization cannot fill for next-generation database systems. We also further formalize the notion of implicit authorization and refine the application of the notion of implicit authorization to object-oriented and semantic modeling concepts. We also describe a user interface for using the model of authorization and consider key issues in implementing the authorization model.