Capacity Planning for Web Services: metrics, models, and methods
Capacity Planning for Web Services: metrics, models, and methods
WS-QDL Containing Static, Dynamic, and Statistical Factors of Web Services Quality
ICWS '04 Proceedings of the IEEE International Conference on Web Services
Web Services-Based Data Management: Evaluating the Performance of UDDI Registries
ICWS '04 Proceedings of the IEEE International Conference on Web Services
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When multiple distributed instances of the same Web service exist, a great challenge is represented by allowing the service requesters to select the most convenient instances at execution time. In the Web service scenario, the requesters represent the critical decision making point about what service instance to use. For this reason they need information to estimate the behavior of different services to perform an aware selection, instead of a random one. This work formally defines the select logical operation as a new step of the bind logical operation. Then it contributes to the comprehension of the conditions under which is convenient, for a service requestor, to spend a little time using prediction mechanisms for collecting service convenience values. Moreover we propose some simulation results obtained modelling a realistic Web service scenario.