The Operational Semantics of Extended Relations for Multilevel Security


The Transactions of the Korea Information Processing Society (1994 ~ 2000), Vol. 3, No. 1, pp. 87-94, Jan. 1996
10.3745/KIPSTE.1996.3.1.87,   PDF Download:

Abstract

In order to design extended relational database management system supporting mutilevel security, the standard relational data model is extended and new relational integrity constraints are proposed for the model. The extended relational model and proposed multilevel integrity constraints maintain database in consistent state and produce a basis that can eliminate ambiguity of entity and relationship representations by polyinstantiation. The proposed update semantics can increase the efficiency of update operations by supporting multilevel entry and updates. The semantics also provides a basis for the implementation of decomposition of extended relations.


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Cite this article
[IEEE Style]
C. W. Soo and B. H. Young, "The Operational Semantics of Extended Relations for Multilevel Security," The Transactions of the Korea Information Processing Society (1994 ~ 2000), vol. 3, no. 1, pp. 87-94, 1996. DOI: 10.3745/KIPSTE.1996.3.1.87.

[ACM Style]
Cho Wan Soo and Bae Hae Young. 1996. The Operational Semantics of Extended Relations for Multilevel Security. The Transactions of the Korea Information Processing Society (1994 ~ 2000), 3, 1, (1996), 87-94. DOI: 10.3745/KIPSTE.1996.3.1.87.