Encyclopedia of Database Systems

2018 Edition
| Editors: Ling Liu, M. Tamer Özsu


  • Yue ZhangEmail author
  • James B. D. Joshi
Reference work entry
DOI: https://doi.org/10.1007/978-1-4614-8265-9_1509




The central idea of the GEO-RBAC model is the role schema, and instances of roles, as defined below [ 1]:
  • Role Schema: A Role Schema is a tuple <r, ext, loc, mloc>, where r is the name of the role, ext is the feature type of the role extent, loc is the feature type of the logical positions and mloc is the mapping function that maps a real position into a logical position of type loc.

  • Role Instance: Given a role schema rs, an instance riof rsis a pair <r, e> where\( r = {r}_s\cdot r \)

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Recommended Reading

  1. 1.
    Bertino E, Catania B, Damiani ML, Perlasca P. GEO-RBAC: a spatially aware RBAC. In: Proceedings of the 10th ACM Symposium on Access Control Models and Technologies; 2005. p. 29–37.Google Scholar

Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.University of PittsburghPittsburghUSA

Section editors and affiliations

  • Elena Ferrari
    • 1
  1. 1.DiSTAUniv. of InsubriaVareseItaly