Database access in mobile environments
Mobility is the cause for new requirements on database systems. Database systems used in classical LAN- or host-based environments provide these new features deficiently. New concepts are needed in mobile environments. The conventional client-server architecture has to extended in a client-agent-server architecture. We describe new approaches in database technology to meet the new requirements like adaptive database system components and intensified use of query statistics. This includes the management of queries and query results. The access to the information will be done via an OQL-like interface. The OQL query will be transformed into queries of the underlying relational or object-oriented database systems used by the information servers.
Mobile computing with the help of small devices via wireless networks is in our opinion only one possible mobile scenario. In this paper we present a new and more general interpretation of mobility based on mobility of users.
KeywordsMobile Node Database System Mobile User Query Processing Query Result
Unable to display preview. Download preview PDF.
- [BA95]B. Bhargava and M. Annamalai. Communication Costs in Digital Libraries. In Proc. of the 6th Database and Expert Systems Applications (DEXA), London, 1995.Google Scholar
- [BBK+95]W. Böhmak, B. Bellmann, S. Kümmel, T. Reigler, and A. Schill. Systemunterstützung für verteilte Mobilrechner-Anwendungen. In GI-Fachtagung “Kommunikation in verteilten Systemen”, Chemnitz, pages 243–257, 1995.Google Scholar
- [BI95]D. Barbara and T. Imielinski. Sleepers and Workaholics: Caching Stragies in Mobile Environments. In VLDB Journal 4, 1995.Google Scholar
- [Cat94]R.G.G. Cattell, editor. The Object Database Standard: ODMG — 93. Morgan Kaufmann, San Mateo, CA, 1994.Google Scholar
- [DAO+95]A. Dogac, M. Altinel, C. Ozkan, B. Arpinar, I. Durusoy, and A. Altinas. METU Object-Oriented DBMS Kernel. In Proc. of the. 6th Database and Expert Systems Applications (DEXA), London, 1995.Google Scholar
- [Heu89]A. Heuer. A data model for complex objects based on a semantic database model and nested relations. In Nested Relations and Complex Objects in Databases, volume 361, pages 297–312. LNCS, 1989.Google Scholar
- [HL96]A. Heuer and A. Lubinski. Database Access in Mobile Environments (extended version). In Preprint of the Dept. of CS, University of Rostock, CS-04-96, 1996.Google Scholar
- [IB93]T. Imielinski and B.R. Badrinath. Data Management for Mobile Computing. In SIGMOD RECORD, Vol 22, Nr. 1, 1993.Google Scholar
- [IVB94]T. Imielinski, S. Viswanathan, and B.R. Badrinath. Data on Air: Organization and Access. In IEEE Transaction in Knowledge and Data Engineering, 1994.Google Scholar
- [KHK+95]T. Kirste, A. Heuer, B. Kehrer, H. Schumann, and B. Urban. Concepts for Mobile Information Visualization: The MoVi-Project. In Proc. of the Sixth Eurographics Workshop on Visualization in Scientific Computing, 1995.Google Scholar
- [Kir96]T. Kirste. The MOVI project: Introduction and modeling concepts. In Proc. of the IMC'96, 1996.Google Scholar
- [Ora95]Oracle in motion. Technical report, Oracle, 1995. Draft paper.Google Scholar
- [SSR94]S. Sciore, M. Siegel, and A. Rosenthal. Using Semantic Values to Facilitate Interoperability Among Heterogeneous Information. In Transaction on Database Systems, 1994.Google Scholar
- [TF95]J. Thees and H. Federrath. Methoden zum Schutz von Verkehrsdaten in Funknetzen. In H.H. Brüggemann and W. Gerhardt-Häckl, editors, VIS 95 (Verteilte IT-Systeme), Braunschweig, Wiesbaden, 1995. Vieweg.Google Scholar
- [ZD95]B. Zenel and D. Duchamp. Intelligent Communication Filtering for Limited Bandwidth Environments. In Proc. of the Fifth Workshop on Hot Topics in Operating Systems, Rosario, 1995.Google Scholar