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A Study on the Architecture-based Model of High Availability of Railway Control Systems

열차제어시스템의 아키텍처 기반 고가용도 모델 적용에 관한 연구

  • 이경행 (국방대학교 무기체계학과) ;
  • 권용수 (국방대학교 무기체계학과)
  • Received : 2010.05.18
  • Accepted : 2011.01.30
  • Published : 2011.04.26

Abstract

This work describes an availability model of highly available systems to achieve Five-9's availability. Modern railway systems have raised users' expectations of powerful "always on" services. The crucial characteristics of these highly available services are essential to many modern businesses area, such as telecommunications, railway systems, information operations, Web-based businesses, and so on. The architecture-based model of system availability is useful to assess the feasibility of meeting a high availability target. The Markov model approach is straightforward for relative system engineers to adapt when they model highly available system failure and the failure recovery process. This work proposed the improved availability model through UML2.0. It is shown that the architecture-based model of system availability is a good reasonable by its application of the railway systems.

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