Lecture Notes in Computer Science Edited by G. Goos, J. Hartmanis and J. van Leeuwen 2172 3 Berlin Heidelberg New York Barcelona Hong Kong London Milan Paris Tokyo Carlo Batini Fausto Giunchiglia Paolo Giorgini Massimo Mecella (Eds.) Cooperative Information Systems 9th International Conference, CoopIS 2001 Trento, Italy, September 5-7, 2001 Proceedings 13 Series Editors Gerhard Goos, Karlsruhe University, Germany Juris Hartmanis, Cornell University, NY, USA Jan van Leeuwen, Utrecht University, The Netherlands Volume Editors Carlo Batini Massimo Mecella University of Rome "La Sapienza", Department of Systems and Computer Science Via Salaria 113, 00198 Roma, Italy E-mail:
[email protected];
[email protected] Fausto Giunchiglia University of Trento, Department of Information and Communication Technology Via Sommarive 14, 38050 Povo, Trento, Italy E-mail:
[email protected] Paolo Giorgini University of Trento, Department of Mathematics Via Sommarive 14, 38050 Povo, Trento, Italy E-mail:
[email protected] Cataloging-in-Publication Data applied for Die Deutsche Bibliothek - CIP-Einheitsaufnahme Cooperative information systems : 9th international conference ; proceedings / CoopIS 2001, Trento, Italy, September 5 - 7, 2001. Carlo Batini ... (ed.). - Berlin ; Heidelberg ; New York ; Barcelona ; Hong Kong ; London ; Milan ; Paris ; Tokyo : Springer, 2001 (Lecture notes in computer science ; Vol. 2172) ISBN 3-540-42524-1 CR Subject Classification (1998): H.2.4, H.5, C.2.4, H.3, I.2.11 ISSN 0302-9743 ISBN 3-540-42524-1 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 2001 Printed in Germany Typesetting: Camera-ready by author, data conversion by DA-TeX Gerd Blumenstein Printed on acid-free paper SPIN 10840428 06/3142 543210 Preface Cooperative Information Systems have emerged as a central concept in a variety of applications, projects, and systems in the new era of e-business. The conference at which the papers in this volume were presented