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OSSM: The OLAP Security Specification Model

  • Ahmad Altamimi
  • Todd Eavis
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 8506)

Abstract

Security policies in Online Analytical Processing (OLAP) systems are designed to protect sensitive data from unauthorized access while, at the same time, ensuring that legitimate requests can be consistently satisfied. Ultimately, such policies allow administrators to define a series of restrictions and/or exceptions that can be associated with the components of the OLAP data model, including elements such as dimensions, cells, and aggregation hierarchies. A primary limitation of many current systems is that security policies are generally constructed on top of very granular privilege models that can produce complex and error prone mappings to the elements of the OLAP domain. In this paper, we present an Object Oriented Security Model (OSSM) that has been specifically designed for the specification of security policies within OLAP environments. In addition to explicit support for components of the conceptual data model, the OSSM can be used by the associated security policy engine to transparently and consistently propagate constraints across all relevant levels of dimension hierarchies. We discuss the core elements of the OSSM, as well as the integration with the policy engine that supports the language interfaces.

Keywords

OLAP Security Languages Authorization policy 

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Copyright information

© Springer International Publishing Switzerland 2014

Authors and Affiliations

  • Ahmad Altamimi
    • 1
  • Todd Eavis
    • 1
  1. 1.Concordia UniversityMontrealCanada

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