期刊名称：International Journal of Computer Science and Network Security
印刷版ISSN：1738-7906
出版年度：2010
卷号：10
期号：10
页码：197-201
出版社：International Journal of Computer Science and Network Security
摘要：Data warehouse collects and integrates critical data of organization from multiple sources and stores them for a long time in multidimensional model. This nature motivates researchers to propose set of models to secure these data. In this paper, we present an enhanced authorization model in order to close open security holes in Data Warehouse (DW) and On-Line Analytical Process (OLAP). We focus on adding much flexibility to formats of security rules besides controlling access to combination of fact and dimension to grant user the required permissions to perform his work only. As an integral part of this model, we present new methodology to avoid bad security impacts which are result from using Slowly Changing Dimension (SCD) techniques which track time-variant dimension modifications.
关键词：Security; Data Warehouse; OLAP; SCD Techniques
Loading...
