Information and Software Technologies 18th International Conference,

This book constitutes the refereed proceedings of the 18th International Conference on Information and Software Technologies, ICIST 2012, held in Kaunas, Lithuania, in September 2012. The 40 revised full papers presented were carefully reviewed and select

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Tomas Skersys Rimantas Butleris Rita Butkiene (Eds.)

Information and Software Technologies 18th International Conference, ICIST 2012 Kaunas, Lithuania, September 13-14, 2012 Proceedings

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Volume Editors Tomas Skersys Rimantas Butleris Rita Butkiene Kaunas University of Technology Studentu g. 50-313a LT-51368, Kaunas, Lithuania E-mail: {tomas.skersys, rimantas.butleris, rita.butkiene}@ktu.lt

ISSN 1865-0929 e-ISSN 1865-0937 ISBN 978-3-642-33307-1 e-ISBN 978-3-642-33308-8 DOI 10.1007/978-3-642-33308-8 Springer Heidelberg Dordrecht London New York Library of Congress Control Number: 2012946354 CR Subject Classification (1998): D.2.1, D.2.4-5, I.2.4, J.1, K.3.1, H.4, H.3.5, I.2, D.2

© Springer-Verlag Berlin Heidelberg 2012 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. The use of general descriptive names, registered names, trademarks, etc. in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use. Typesetting: Camera-ready by author, data conversion by Scientific Publishing Services, Chennai, India Printed on acid-free paper Springer is part of Springer Science+Business Media (www.springer.com)

Preface

The International Conference on Information and Software Technologies—ICIST (formerly known as the IT Conference)—is hosted by the biggest technical university in the Baltic States, the Kaunas University of Technology. First organized as a part of the “Lithuanian Science and Industry” conference series in 1995, in Kaunas, Lithuania, this annual event became international in 2008, immediately attracting attention from academicians from all over the world. The volume of Communications in Computer and Information Science series marks a new step for the conference. Having the proceedings published by Springer has raised the bar for our authors and will undoubtedly contribute to our on-going aim of improving the quality of the event by promoting the best research available not only in Lithuania but also internationally. Thematically, the 18th iteration of the conference remained true to its original mission. The goal is to bring together practitioners and researchers in the field of software, hardware, and information systems engineering aiming at the everlasting convergence between business, software, and system requirements as well as application of new supporting technologies. At the same time, we strive to promote interdisciplinary approaches and mult