Robust web services provisioning through on-demand replication

Quan Z. Sheng, Zakaria Maamar, Jian Yu, Anne H H Ngu

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

6 Citations (Scopus)


Significant difference exists between things that work and things that work well. Availability along with reliability would make Web services the default technology of choice in developing many mission-critical electronic-business applications. Unfortunately, guaranteeing a Web service availability is still a challenge due to the unpredictable number of invocation requests a Web service (e.g., Google Maps) has to handle at a time, as well as the dynamic nature of the Internet (e.g., network disconnections). In addition, the heterogeneity, mobility and distributed nature of Web services makes traditional dependability and availability approaches inappropriate for Web services. In this paper, we describe the design of an on-demand replication approach for robust Web service provisioning. This approach dynamically deploys Web services at appropriate idle hosts, reducing the unavailability of Web services during peak demand for limited computing resources. In addition this approach promotes the decoupling of Web service providers and Web service host providers, which supports a more flexible replication model.

Original languageEnglish
Title of host publicationInformation Systems: Modeling, Development, and Integration - Third International United Information Systems Conference, UNISCON 2009, Proceedings
Place of PublicationBerlin Germany
PublisherSpringer, Springer Nature
Number of pages13
Volume20 LNBIP
ISBN (Print)9783642011115
Publication statusPublished - 2009
Externally publishedYes
Event3rd International United Information Systems Conference, UNISCON 2009 - Sydney, NSW, Australia
Duration: 21 Apr 200924 Apr 2009

Publication series

NameLecture Notes in Business Information Processing
Volume20 LNBIP
ISSN (Print)18651348


Other3rd International United Information Systems Conference, UNISCON 2009
CitySydney, NSW


  • Matchmaking
  • Replication
  • Service host
  • Web service


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