Adaptive service scheduling for workflow applications in Service-Oriented Grid
The Journal of Supercomputing
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intensive scientific applications, Grid[1] enables resource sharing and dynamic allocation of computational resources. It promotes access to distributed data, operational flexibility and collabora- tion, and allows service providers to be distributed both concep- tually and physically to meeting different requirements. Large- scale grids are normally composed of huge numbers of compo- nents from different sites, which increases the requirements of workflows and quality of service (QoS) upon these workflows as many of these components have real-time requirements. In this paper, we describe our web services based QoS-aware workflow management system(WfMS) from GridCC project[7] and show how this WfMS can aid to ensure workflows meet the pre-defined QoS requirements and optimise them accordingly. keywords: Grid, Quality of Service (QoS), Web Services, Service Oriented Architecture (SOA)