Monitoring contract enforcement within Virtual Organizations

Anna Squicciarini, Federica Paci

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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.

Original languageEnglish (US)
Title of host publicationCollaborative Computing
Subtitle of host publicationNetworking, Applications and Worksharing - 4th International Conference, CollaborateCom 2008, Revised Selected Papers
Pages563-577
Number of pages15
DOIs
StatePublished - Dec 1 2009
Event4th International Conference on Collaborative Computing: Networking, Applications and Worksharing, CollaborateCom 2008 - Orlando, FL, United States
Duration: Nov 13 2008Nov 16 2008

Publication series

NameLecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering
Volume10 LNICST
ISSN (Print)1867-8211

Other

Other4th International Conference on Collaborative Computing: Networking, Applications and Worksharing, CollaborateCom 2008
CountryUnited States
CityOrlando, FL
Period11/13/0811/16/08

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications

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