An XML-Based Model for Supporting Context-Aware Query and Cache Management

Authors:
Essam Mansour;Hagen Höpfner
Affiliations:
International University in Germany, School of Information Technology, Bruchsal, Germany D-76646;International University in Germany, School of Information Technology, Bruchsal, Germany D-76646
Venue:
BNCOD 26 Proceedings of the 26th British National Conference on Databases: Dataspace: The Final Frontier
Year:
2009

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Abstract

Database systems (DBSs) can play an essential role in facilitating the query and cache management in context-aware mobile information systems (CAMIS). Two of the fundamental aspects of such management are update notifications and context-aware query processing. Unfortunately, DBSs does not provide a built-in update notification function and are not aware of the context of their usage. This paper presents an XML model called XReAl (XML-based Relational Algebra) that assists DBSs in extending their capabilities to support context-aware queries and cache management for mobile environments.