Lecture Notes in Computer Science Edited by G. Goos, J. Hartmanis, and J. van Leeuwen 2287 3 Berlin Heidelberg New York Barcelona Hong Kong London Milan Paris Tokyo Christian S. Jensen Keith G. Jeffery ˇ Jaroslav Pokorny Simonas Saltenis Elisa Bertino Klemens Böhm Matthias Jarke (Eds.) Advances in Database Technology – EDBT 2002 8th International Conference on Extending Database Technology Prague, Czech Republic, March 25-27, 2002 Proceedings 13 Volume Editors Christian S. Jensen ˇ Simonas Saltenis Aalborg University, Department of Computer Science E-mail: {csj/simas}@cs.auc.dk Keith G. Jeffery CLRC Rutherford Appleton Laboratory, Business and Information Technology Dept. E-mail:
[email protected] Jaroslav Pokorny Charles University, Faculty of Mathematics and Physics E-mail:
[email protected] Elisa Bertino University of Milan, Department of Information Science E-mail:
[email protected] Klemens Böhn ETH Zurich, Institute of Information Systems E-mail:
[email protected] Matthias Jarke RWTH Aachen, Informatik V E-mail:
[email protected] Cataloging-in-Publication Data applied for Die Deutsche Bibliothek - CIP-Einheitsaufnahme Advances in database technology : proceedings / EDBT 2002, 8th International Conference on Extending Database Technology, Prague, Czech Republic, March 25 - 27, 2002. Christian S. Jensen ... (ed.). - Berlin ; Heidelberg ; New York ; Barcelona ; Hong Kong ; London ; Milan ; Paris ; Tokyo : Springer, 2002 (Lecture notes in computer science ; Vol. 2287) ISBN 3-540-43324-4 CR Subject Classification (1998): H.2, H.4, H.3, C.2.4, K.4.4 ISSN 0302-9743 ISBN 3-540-43324-4 Springer-Verlag Berlin Heidelberg New York This work is subject to copyright. All rights are reserved, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, re-use of illustrations, recitation, broadcasting, reproduction on microfilms or in any other way, and storage in data banks. Duplication of this publication or parts thereof is permitted only under the provisions of the German Copyright Law of September 9, 1965, in its current version, and permission for use must always be obtained from Springer-Verlag. Violations are liable for prosecution under the German Copyright Law. Springer-Verlag Berlin Heidelberg New York a member of BertelsmannSpringer Science+Business Media GmbH http://www.springer.de © Springer-Verlag Berlin Heidelberg 2002 Printed in Germany Typesetting: Camera-ready by author, data conversion by Steingräber