COLLABORATECOM 2009
TrustCol 2009CollaborateSN 2009

    COLLABORATECOM

    5th International ICST Conference on Collaborative Computing: Networking, Applications, Worksharing

    The Fifth International Conference on Collaborative Computing (CollaborateCom 2009) will continue to serve as a premier international forum for discussion among academic and industrial researchers, practitioners, and students interested in collaborative networking, technology and systems, and appli…

    The Fifth International Conference on Collaborative Computing (CollaborateCom 2009) will continue to serve as a premier international forum for discussion among academic and industrial researchers, practitioners, and students interested in collaborative networking, technology and systems, and applications.

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    Editor(s): James Joshi and Tao Zhang
    Publisher
    IEEE
    ISBN
    978-963-9799-76-9
    Conference dates
    11th–14th Nov 2009
    Location
    Crystal City, Washington DC, USA
    Appeared in EUDL
    29th Nov 2011
    Appears in
    IEEEXplore

    Copyright © 2011–2013 ICST

    • R4: Towards a holistic framework for designing and developing Social Web Applications

      Research Article in 5th International ICST Conference on Collaborative Computing: Networking, Applications, Worksharing

      Sungwon Peter Choe, Junehwa Song

      Abstract
      Social Web Application (SWA) design and development is a complex process that requires the understanding and coordination of several domains of knowledge. Yet there remain few if any holistic framewo…Social Web Application (SWA) design and development is a complex process that requires the understanding and coordination of several domains of knowledge. Yet there remain few if any holistic frameworks to manage this process. In this paper we present such a framework, R4. It coordinates and relates the different perspectives that inform the entire SWA design and development process. We base R4 on SWA design and development framework requirements derived from the literature. We formulate and relate four basic perspectives, the User, Culture, Technology and Business spheres and define stages, (Re)Design, Realization and Reformation (RRR), of the entire SWA design and development lifecycle. We then suggest basic SWA design and development guidelines derived from our R4 framework and develop an example methodology based on that framework.
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    • Toward synchronization between decentralized orchestrations of composite web services

      Research Article in 5th International ICST Conference on Collaborative Computing: Networking, Applications, Worksharing

      Walid Fdhila, Claude Godart

      Abstract
      Web service paradigm and related technologies have provided favorable means for the realization of collaborative business processes. From both conceptual and implementation points of view, the busine…Web service paradigm and related technologies have provided favorable means for the realization of collaborative business processes. From both conceptual and implementation points of view, the business processes are based on a centralized management approach. Nevertheless, it is very well known that the enterprise-wide process management where processes may span multiple organizational units requires particular considerations on scalability, heterogeneity, availability and privacy issues, that in turn, require particular consideration on decentralization. In a previous work, we have described a flexible methodology for splitting a centralized process specification into a form that is amenable to a distributed execution. The approach is based on the computation of very basic dependencies between process elements. In this paper, we extend this approach to support advanced patterns such as loops, multiple instances and discriminator, and incorporate the necessary synchronization between the different processing entities. We also detail our interconnection mechanism and explain how to handle control and data dependencies between activities of the different partitions through asynchronous message exchanges. The proposed methodology preserves semantics of the centralized process with a peer-to peer interactions among the derived decentralized processes.
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    • Formal verification of mediated web service interactions considering client's expected behaviours

      Research Article in 5th International ICST Conference on Collaborative Computing: Networking, Applications, Worksharing

      Zhangbing Zhou, Sami Bhiri, Lei Shu, Manfred Hauswirth

      Abstract
      This paper proposes a formal technique to verify whether or not an expected interaction is adaptable. We first present our observation that a mediated service interaction is synchronizable. This fact…This paper proposes a formal technique to verify whether or not an expected interaction is adaptable. We first present our observation that a mediated service interaction is synchronizable. This fact is a prerequisite of our approach. Hereafter, we formally model a protocol scenario (i.e., a part of a service protocol to be enacted in an expected interaction) and an adapter, generate an adaptation logic, and formalize a mediated service interaction and its conversation. These formalization enables one to perform a formal verification that checks whether or not, as well as under which condition, an expected interaction is achievable. The technique presented in this paper complements the efforts of adapter synthesization for ensuring the achievability of a certain expected interaction.
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    • Aggregating uncertain access risk estimations from different sources invited paper

      Research Article in 5th International ICST Conference on Collaborative Computing: Networking, Applications, Worksharing

      Qun Ni, Elisa Bertino

      Abstract
      Risk-based access control raises some novel problems that have not yet been investigated. In particular, the ability to aggregate uncertain risk estimations from different experts is crucial to the s…Risk-based access control raises some novel problems that have not yet been investigated. In particular, the ability to aggregate uncertain risk estimations from different experts is crucial to the success of risk-based access control systems. A K-Algebra is proposed in this paper for this purpose. The algebra is not only able to support the specification of existing aggregation rules but also makes it possible to generalize these rules based on their logical explanations.
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    • Towards automatic privacy management in Web 2.0 with semantic analysis on annotations

      Research Article in 5th International ICST Conference on Collaborative Computing: Networking, Applications, Worksharing

      Nitya Vyas, Anna C. Squicciarini, Chih-Cheng Chang, Danfeng Yao

      Abstract
      Sharing personal information and documents is pervasive in Web 2.0 environments, which creates the need for properly controlling shared data. Most existing authorization and policy management systems…Sharing personal information and documents is pervasive in Web 2.0 environments, which creates the need for properly controlling shared data. Most existing authorization and policy management systems are for organizational use by IT professionals. Average Web users, however, do not have the sophistication to specify and maintain privacy policies for their shared content. In this paper, we aim to utilize personal and social annotations to develop automatic tools for managing content sharing, and demonstrate a new application of social annotations in access control. We use annotation data to predict privacy preferences of users and automatically derive policies for shared content. We carry out a series of user studies to evaluate the accuracy of our predicted techniques. We also perform extensive analysis on static and dynamic approaches of analyzing semantic similarities of tags, which is of independent interest. Our analysis gives encouraging results on the feasibility of using annotations for privacy management in Web 2.0.
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