Electronic Communications of the EASST Volume 43 (2011) Proceedings of the 4th International DisCoTec Workshop on Context-aware Adaption Mechanisms for Pervasive And Ubiquitous Services (CAMPUS 2011) Preface 4 pages Guest Editors: Gabriel Hermosillo, Russell Nzekwa, Michael Wagner Managing Editors: Tiziana Margaria, Julia Padberg, Gabriele Taentzer ECEASST Home Page: http://www.easst.org/eceasst/ ISSN 1863-2122 http://www.easst.org/eceasst/ ECEASST Preface Nowadays, there is a global exponential increase in the use of portable smart devices, such as tablets, smart phones, GPS, etc. These small devices have a huge impact on the everyday life of its users, either for work or leisure. As a consequence to this, the availability and behavior of the services that can be used with such devices has become a big concern. Moreover, the exist- ing tools still have some limitations to face these concerns properly, given the heterogeneity and the unstable presence of devices and platforms, and the great variability of situations that users might encounter. To overcome these difficulties, and promote the development and widespread deployment of innovative mobile applications, more and more projects are addressing the de- velopment of context-aware adaptation mechanisms for leveraging the development of mobile applications. These projects aim at providing simple but powerful integrated approaches to sup- port the development of applications interacting in pervasive and ubiquitous environments. Thus, these projects, as well as other projects, tackle the growing complexity of building large and dy- namic distributed systems. With regards to this challenge, the CAMPUS workshop will focus on the promising approaches in the domain of context-aware adaptation mechanisms supporting the dynamic evolution of the execution context (e.g., network/device/service failures). This volume contains the proceedings of the fourth workshop on Context-aware Adaptation Mechanisms for Pervasive and Ubiquitous Services, held in Reykjavik, Iceland, on June 9, 2011. The CAMPUS workshop is jointly organized by the MUSIC, CONNECT, and DiVA IST projects. It provides a forum for scientists and engineers in academia and industry to present and discuss their latest research. The focus of the conference is the design, implemen- tation, deployment, and evaluation of adaptive platforms and architectures for context-aware environments. This year, the workshop intends to encourage submissions related adaptation is- sues addressed by some emerging themes in the service computing community: Sensor as a Service, Ambient Social Services and Green IT. We had 4 submissions from 4 different coun- tries, among which only 3 papers were selected for inclusion in the program of the work- shop. All papers were evaluated by at least four reviewers with respect to their originality, technical merit, presentation quality, and relevance to the workshop themes. The selected pa- pers present the latest results and breakthroughs on middleware research in areas of automo- tive systems, ubiquitous environments, pervasive environments, ambient computing and mul- timedia computing. We would like to express our deepest appreciation to the authors of the submitted papers, to all Program Committee members for their diligence in the paper review and selection process, and to all external reviewers for their help in evaluating submissions. June, 2011 Gabriel Hermosillo Russel Nzekwa Michael Wagner 1 / 4 Volume 43 (2011) Preface Organization Steering Committee Sonia Ben Mokhtar CNRS, France Frank Eliassen University of Oslo, Norway Kurt Geihs University of Kassel, Germany Svein Hallsteinsen SINTEF ICT, Norway Geir Horn SINTEF ICT, Norway Valérie Issarny INRIA, France Romain Rouvoy University Lille 1, France Lionel Seinturier University Lille 1, France Organisation Committee Program chair Gabriel Hermosillo INRIA Lille Nord Europe, France Publicity chair Russel Nzekwa INRIA Lille Nord Europe, France Publication chair Michael Wagner University of Kassel, Germany Proc. CAMPUS 2011 2 / 4 ECEASST Program Committee Olivier Barais University de Rennes 1, France Sonia Ben Mokhtar CNRS, France Yolande Berbers K.U.Leuven, Belgium Gordon Blair Lancaster University, UK Johann Bourcier Irisa – Univ. Rennes 1 & INRIA, France Franck Chauvel Peking University, China Ruzanna Chitchyan Lancaster University, UK Diana Comes University of Kassel, Germany Denis Conan Institut Telecom, France Geoff Coulson Lancaster University, UK Wolfgang De Meuter Vrije Universiteit Brussel, Belgium Schahram Dustdar Vienna University of Technology, Austria Frank Eliassen University of Oslo, Norway Gabriel Hermosillo INRIA – Nord Europe, France Geir Horn SINTEF ICT, Norway Joseph Loyall BBN Technologies, Massachusetts Ilaria Matteucci Istituto di Informatica e Telematica, Italy René Meier Trinty College Dublin, Ireland Nearchos Paspallis University of Cyprus, Cyprus Pascal Poizat University of Evry, France Hongyang Qu Oxford University, UK Romain Rouvoy University Lille 1, France Rachid Saadi INRIA, France Antonino Sabetta SAP Research Sophia–Antipolis, France Lionel Seinturier University Lille 1, France Sotirios Terzis University of Strathclyde, UK Massimo Tivoli University of L’Aquila, Italy Guido Urdaneta Vrije Universiteit, Netherlands Michael Wagner University of Kassel, Germany External Referees Kevin Pinte Vrije Universiteit Brussel, Belgium 3 / 4 Volume 43 (2011) Preface Contents Volatile Sets: Event-driven Collections for Mobile Ad-Hoc Applications Dries Harnie, Elisa Gonzalez Boix, Andoni Lombide Carreton, Christophe Scholliers and Wolfgang De Meuter Context awareness: Challenges and opportunities in modern smartphone use Nearchos Paspallis and Gabriel Panis Towards a Flexible and Evolvable Framework for Self-Adaptation Lucas L. Provensi and Frank Eliassen Proc. CAMPUS 2011 4 / 4