Locale-based access control: Placing collaborative authorization decisions in context

William J. Tolone, Robin A. Gandhi, Gail Joon Ahn

Research output: Contribution to journalConference articlepeer-review

5 Scopus citations


Collaborative systems require an appropriate authorization model to specify and maintain policies that not only facilitate group activities but also enforce restrictions and accountability. Existing models fail to incorporate adequately into authorization decisions the rich notion of context that is inherent to any collaborative setting. In this paper we present the Locale-based Access Control (Locale-BAC) model for collaborative systems, a model whose design is based upon the application of Fitzpatrick's Locale Framework for collaboration to the problem of access control. This model encapsulates the notion of context using locales, allowing for a natural representation of collaborative authorization decisions.

Original languageEnglish (US)
Pages (from-to)4120-4127
Number of pages8
JournalProceedings of the IEEE International Conference on Systems, Man and Cybernetics
StatePublished - 2003
Externally publishedYes
EventSystem Security and Assurance - Washington, DC, United States
Duration: Oct 5 2003Oct 8 2003


  • Access control
  • Collaborative systems
  • Locale framework

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Hardware and Architecture


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