The Journal of Korean Institute of Communications and Information Sciences (한국통신학회논문지)

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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Vertical class fragmentation in distributed object-oriented databases

분산 객체 지향 데이타베이스에서 클래스의 기법

  • 이순미 (홍익대학교 컴퓨터공학과) ;
  • 임해철 (홍익대학교 컴퓨터공학과)
  • Published : 1997.02.01
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Abstract

This paper addresses the vertical class fragmentation in distributed object-oriented databases. In the proposed vertical fragmentation, after producing the attribute fragment by partitioning attributes, then the method fragment is produced by gathering methods referring the attribute in each fragment. For partitioning attributes, we define query access matrix(QAM) and method access matrix(MAM) to express attributes that method refers, and extend QAM, MAM and attribute usage matrix(AUM) to universal class environment for representing relationship among other classes through class hierarchy and class composite hierarchy.

Keywords

References

  1. G. Distributd atabases: Principles and Systems Ceri, S.;Pelagatti
  2. TR94-03 K. Vertical Class Fragmentatin in a Distributes Object Based System Ezeife;C. I.;Barker
  3. In 1st VLDB Conference The Use of Cluster Analysis in Physical Database Design Hoffer, J. A.;Severance, D. G.
  4. In Fifth International Workshop on RIDE-DOM Partitioning Schemes for Object Oriented Database Karlapalem, K.;Li Q.
  5. 16th int'1 conf. on DCS Induced Paritioning Schemes in OODB Karlapalem, K.;Li, Q.;Vieweg, S. Method
  6. Distributed Object Management Issues in Distribution design of OODB Karlapalem, K.;Navathe, S. B.;Morsi, M. M. A.
  7. Oper. Res. v.20 Problem Decomposition and Data Reorganization by a Clustering Technique McCormick, W. T.;Schweitzer, P.J.
  8. ACM TODS v.9 no.4 Vertical Partitioning algorithms for database design. Navathe, S. B.;Ceri, S. Wiederhold;G.;Dou, J
  9. Proceedings of the ACM SIGMOD Vertical Partitioning for database design:A graphical algorithm Navathe, S. B.;Ra, M.
  10. IEEE Computer v.24 no.8 Distributed Database System:Where Are We Now? Ozsu, M. T.;Valduriez, P.