Collaborative Computing: Networking, Applications and Worksharing. 4th International Conference, CollaborateCom 2008, Orlando, FL, USA, November 13-16, 2008, Revised Selected Papers

Research Article

Monitoring Contract Enforcement within Virtual Organizations

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  • @INPROCEEDINGS{10.1007/978-3-642-03354-4_42,
        author={Anna Squicciarini and Federica Paci},
        title={Monitoring Contract Enforcement within Virtual Organizations},
        proceedings={Collaborative Computing: Networking, Applications and Worksharing. 4th International Conference, CollaborateCom 2008, Orlando, FL, USA, November 13-16, 2008, Revised Selected Papers},
        proceedings_a={COLLABORATECOM},
        year={2012},
        month={5},
        keywords={Virtual Organizations Monitoring Access Control Collaboration},
        doi={10.1007/978-3-642-03354-4_42}
    }
    
  • Anna Squicciarini
    Federica Paci
    Year: 2012
    Monitoring Contract Enforcement within Virtual Organizations
    COLLABORATECOM
    Springer
    DOI: 10.1007/978-3-642-03354-4_42
Anna Squicciarini1,*, Federica Paci2,*
  • 1: The Pennsylvania State University
  • 2: Purdue University
*Contact email: asquicciarini@ist.psu.edu, paci@cs.purdue.edu

Abstract

Virtual Organizations (VOs) represent a new collaboration paradigm in which the participating entities pool resources, services, and information to achieve a common goal. VOs are often created on demand and dynamically evolve over time. An organization identifies a business opportunity and creates a VO to meet it. In this paper we develop a system for monitoring the sharing of resources in VO. Sharing rules are defined by a particular, common type of contract in which virtual organization members agree to make available some amount of specified resource over a given time period. The main component of the system is a monitoring tool for policy enforcement, called Security Controller (SC). VO members’ interactions are monitored in a decentralized manner in that each member has one associated SC which intercepts all the exchanged messages. We show that having SCs in VOs prevents from serious security breaches and guarantees VOs correct functioning without degrading the execution time of members’ interactions. We base our discussion on application scenarios and illustrate the SC prototype, along with some performance evaluation.