Service-oriented software is composed of a combination of services. Because of the dynamic nature of the Web service environment, the QoS often fluctuates with inherent uncertainty and therefore needs to be dynamically replaced. Based on the changes in the QoS of the software itself and users’ requirements for the software, this paper proposes a dynamic replacement approach based on the cloud model. It adopts the cloud model to transform the quantitative QoS to qualitative QoS for the uncertainty computation and judges the uncertainty level by setting the corresponding service QoS parameters. When a member service with unstable QoS is found, it will be replaced with the candidate service with the same or better QoS to stabilize the QoS of the entire software. Both theoretical analysis and experiment results have proven the feasibility and effectiveness of this approach.
목차
Abstract 1. Introduction 2. Related Work 3. Web Service Dynamic Replacement (WSDR) 3.1. QoS instability Detection 3.2. Substitution Algorithm 4. Experiment 5. Conclusion Acknowledgements References
키워드
Web Service Cloud ModelQoSService Oriented Architecture (SOA)
저자
Yan Gong [ Chinese Electronic Equipment System Engineering Corporation, Beijing, China ]
Lin Huang [ Chinese Electronic Equipment System Engineering Corporation, State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing, China ]
Fan Jiang [ Chinese Electronic Equipment System Engineering Corporation, Beijing, China ]
Ke Han [ Chinese Electronic Equipment System Engineering Corporation, Beijing, China ]
보안공학연구지원센터(IJGDC) [Science & Engineering Research Support Center, Republic of Korea(IJGDC)]
설립연도
2006
분야
공학>컴퓨터학
소개
1. 보안공학에 대한 각종 조사 및 연구
2. 보안공학에 대한 응용기술 연구 및 발표
3. 보안공학에 관한 각종 학술 발표회 및 전시회 개최
4. 보안공학 기술의 상호 협조 및 정보교환
5. 보안공학에 관한 표준화 사업 및 규격의 제정
6. 보안공학에 관한 산학연 협동의 증진
7. 국제적 학술 교류 및 기술 협력
8. 보안공학에 관한 논문지 발간
9. 기타 본 회 목적 달성에 필요한 사업
간행물
간행물명
International Journal of Grid and Distributed Computing
간기
격월간
pISSN
2005-4262
수록기간
2008~2016
십진분류
KDC 505DDC 605
이 권호 내 다른 논문 / International Journal of Grid and Distributed Computing Vol.7 No.1