The 22nd International Conference on Conceptual Modeling (ER 2003) returned to Chicago after an absence of 18 years. Chicago, a city well known for its trendsetting and daring architecture, has met the new century with a renewed commitment to open public spaces and human interaction. Thus it provided a ?tting venue for ER 2003, the scope of which was expanded to encompass all aspects of conceptual modeling in order to deal with constantly changing information technology and business practices and to accommodate a new openness in connecting systems to each other and to human users. The ER 2003 Program Co-chairs, Il-Yeol Song, Stephen Liddle, and Tok Wang Ling, along with an outstanding Program Committee assembled one of the ?nest technical programs of this conference series. In keeping with the tradition of previous ER conferences, the program for ER 2003 also included four preconference workshops, two preconference tutorials, two conference tutorials, two panels, and a demos and poster session. The Program Co-chairs, ´ as well as Manfred Jeusfeld and Oscar Pastor (Workshop Co-chairs), Ee-Peng Lim and Tobey Teorey (Tutorial Co-chairs), Avigdor Gal and Elisa Bertino (Panel Co-chairs), and Heinrich Mayr (Demos and Poster Chair), deserve our appreciation for an excellent job. It was a pleasure working with all of them.
Lecture Notes in Computer Science Edited by G. Goos, J. Hartmanis, and J. van Leeuwen
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Berlin Heidelberg New York Hong Kong London Milan Paris Tokyo
Il-Yeol Song Stephen W. Liddle Tok Wang Ling Peter Scheuermann (Eds.)
Conceptual Modeling – ER 2003 22nd International Conference on Conceptual Modeling Chicago, IL, USA, October 13-16, 2003 Proceedings
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Volume Editors Il-Yeol Song Drexel University, College of Information Science and Technology Philadelphia, PA 19104, USA E-mail:
[email protected] Stephen W. Liddle Brigham Young University, Marriott School School of Accountancy and Information Systems Provo, UT 84602-3087, USA E-mail:
[email protected] Tok Wang Ling National University of Singapore, Dept. of Computer Science 3 Science Drive 2, Singapore 117543 E-mail:
[email protected] Peter Scheuermann Northwestern University, Dept. of Electrical and Computer Engineering Evanston, IL 60208-3118, USA E-mail:
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CR Subject Classification (1998): H.2, H.4, F.4.1, I.2.4, H.1, J.1, D.2, C.2 ISSN 0302-9743 ISBN 3-540-20299-4 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