A Scalable XML Access Control System

This paper presents the design of a scalable XML access control system. The system has the following features. First, it can regulate access control at a ne graularity (e.g., at the tag level). Second, it stores XML documents as tables in relational databases. Third, it is eAEcient compared to existing systems as it only examines the relevant data. Fourth, it is scalable as it can handle very large XML documents that may not t into the main memory. Finally, it provides very fast initial response time.