A Framework for Light-Weight Composition and Management of Ad-Hoc Business Processes

The increasing importance of unstructured, knowledge-intensive processes in enterprises is largely recognized. Conventional workflow solutions do not provide adequate support for the management and optimization of such processes. Therefore the need for mo

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Editorial Board David Hutchison Lancaster University, UK Takeo Kanade Carnegie Mellon University, Pittsburgh, PA, USA Josef Kittler University of Surrey, Guildford, UK Jon M. Kleinberg Cornell University, Ithaca, NY, USA Friedemann Mattern ETH Zurich, Switzerland John C. Mitchell Stanford University, CA, USA Moni Naor Weizmann Institute of Science, Rehovot, Israel Oscar Nierstrasz University of Bern, Switzerland C. Pandu Rangan Indian Institute of Technology, Madras, India Bernhard Steffen University of Dortmund, Germany Madhu Sudan Massachusetts Institute of Technology, MA, USA Demetri Terzopoulos University of California, Los Angeles, CA, USA Doug Tygar University of California, Berkeley, CA, USA Moshe Y. Vardi Rice University, Houston, TX, USA Gerhard Weikum Max-Planck Institute of Computer Science, Saarbruecken, Germany

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Marco Winckler Hilary Johnson Philippe Palanque (Eds.)

Task Models and Diagrams for User Interface Design 6th International Workshop, TAMODIA 2007 Toulouse, France, November 7-9, 2007 Proceedings

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Volume Editors Marco Winckler Philippe Palanque Université Paul Sabatier (Toulouse 3) Toulouse, France E-mail: {winckler,palanque}@irit.fr Hilary Johnson University of Bath, UK E-mail: [email protected]

Library of Congress Control Number: 2007940837 CR Subject Classification (1998): H.5.2, H.5, D.2, D.3, F.3, I.6, K.6 LNCS Sublibrary: SL 2 – Programming and Software Engineering ISSN ISBN-10 ISBN-13

0302-9743 3-540-77221-9 Springer Berlin Heidelberg New York 978-3-540-77221-7 Springer 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. Violations are liable to prosecution under the German Copyright Law. Springer is a part of Springer Science+Business Media springer.com © Springer-Verlag Berlin Heidelberg 2007 Printed in Germany Typesetting: Camera-ready by author, data conversion by Scientific Publishing Services, Chennai, India Printed on acid-free paper SPIN: 12201389 06/3180 543210

Preface

Task analysis and modelling have existed for many years, initially for training purposes but latterly for providing a principled approach to improving the usability of existing and proposed interactive systems. There have been many successes along with critical appraisal of the utility of task analysis. The community remains strong, active and enthusiastic. Over the years we have developed a plethora of theoretical approaches, models and techniques. These differ in terms of what is modelled, the nature of the representations and notations used, their scalability, the ease with which they can be applied with go