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http://dx.doi.org/10.3745/KIPSTC.2003.10C.1.061

Response Time-based Web Service Availability Measurement Method  

Park, Sang- Kun (전남대학교 대학원 전산학)
Choi, Deok-Jai (전남대학교 전산학과)
Abstract
I-Business providers and customers have chosen the service availability as the most important technical parameter which should be included in their SLA to succeed in their business. This means that web Service availability management is crucial to the web-based service providers. Application availability is originally defined as a measure of the fraction of time during a defined period when the service provided is deemed to be better than user expectation of service performance. But, because most web service availability measurement tools simply monitor disconnected state, they do not satisfy user's expectation of extended availability concept. In this paper, We propose the web service availability measurement method which supports extended availability concept. It takes account of performance degradation of web service based on response time, and determines what is the cause of unavailability of the service. We developed a measurement tool, WebSerAvail.
Keywords
Availability; Web Service; Response Time; SLA; WebSerAvail;
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  • Reference
1 B. Chandra, M. Dahlin, L. Gao, A. Nayate, 'End-to-end WAN Service Availabilitym,' USITS, 2001
2 NMF 701,'Performance Reporting Definitions Document,' 1997
3 M. Kalyanakrishnan, R.K.lyer, and J.U.Patel, 'Relaiability of Internet hosts : A case study from the end user's perspective,' Computer Networks, Vol.31, 1999
4 Wei Xie, Hairong Sun, Yonghuan Cao, Kishor S.Trivedi, 'Modeling of Online Service Availability Perceived by Web Users,' 2001
5 J. Charzinski, Measured HTTP performance and fun factors,' In Teletraffic Engineering in the Internet Era(J.Moriera de Souza, N.L.S.Fonseca and E.A.de Souza e Silva(eds.), pp.1063-1074, 2001
6 Application Service Provider Industry Consortium, White Paper on Service Level Agreements,' 2000
7 A. Habib and M. Abrams, 'Analysis of Sources of Latency in Downloading Web Pages,' In Proc. Webnet, San Antonio, USA, 2000
8 J.Mogul, 'The case for persistent-connection HTTP,' Technical Report WRL 95/5, DEC Western Research Laboratory, 1995
9 B. Krishnamurthy, C.E. Wills, 'Analyzing factors that influence end-to-end Web Performance,' Proceedings of WWW-9 conference, May, 2000
10 V. Padmanabhan and J. Mogul, 'Improving HTTP latency,' Computer Networks and ISDN Systems, Dec., 1995   DOI   ScienceOn
11 Mimkka Koletsou, Geoffrey M.Voelker, 'The Medusa Proxy : A Tool for exploring user-perceived web performance,' Proceedings of the Sixth International Workshop on Web Caching and Content Distribution, June, 2001
12 Nina Bhatti, Anna Boutch, Allan Kuchinsky, 'Integrating user-perceived quality into Web server design,' 2000