Journal of KIISE:Databases (한국정보과학회논문지:데이타베이스)

Korean Institute of Information Scientists and Engineers (한국정보과학회)
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An Effective View Management in a Mediator System for the Integration of Heterogeneous Distributed Database

미디에이터 시스템에서의 이질 분산데이타베이스의 통합을 위한 효율적인 뷰관리 방법

  • 주길홍 (연세대학교 컴퓨터과학과) ;
  • 이원석 (연세대학교 컴퓨터과학과)
  • Published : 2001.12.01
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Abstract

This paper proposes a mediator system which can provide a view management function in the today's heterogeneous computing environment including operating system database management systems and other software. while most mediators use view modification mechanism only, the use of view materialization is also considered in this research. In order to optimize the management cost for materialized views the proposed method applies a decay factor for modeling the access behaviors of views In other words, the most recently access pattern gets the highest attention in the optimization process all the necessary it with the CORBA.

본 논문에서는 다양한 운영체제와 데이타베이스 여러 소프트웨어를 포함하는 이질적인 컴퓨팅 환경에서 뷰관리 기능을 제공하는 미디에이터 시스템을 설계한다. 또한 기존의 미디에이터 시스템들이 수 정(modification)방법으로만 뷰를 관리했던 것에 비해 구체화(materialization)방법을 병행하는 관리방법을 설계하고, 구체화시키기 위해 필요한 접근방법과 최적화 방법을 제안한다. 이를 위해서 유에 대한 접근내 역에 감쇄율을 적용함으로써 최근의 접근내역의 변화가 뷰관리에 적절히 반영되도록 설계하였다. 또한 이 질적인 환경의 데이타베이스와 운영체제를 극복하기 위해 코바(CORBA)를 웹과 연동하여 사용자가 일반 적으로 사용하는 웹 브라우저를 통해 뷰를 관리하는 시스템을 구현한다.

Keywords

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