Efficient Selection and Monitoring of QoS-Aware Web Services with the WS-QoS Framework

  • Authors:
  • M. Tian;A. Gramm;H. Ritter;J. Schiller

  • Affiliations:
  • Freie Universität Berlin, Germany;Freie Universität Berlin, Germany;Freie Universität Berlin, Germany;Freie Universität Berlin, Germany

  • Venue:
  • WI '04 Proceedings of the 2004 IEEE/WIC/ACM International Conference on Web Intelligence
  • Year:
  • 2004

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Abstract

While the concept of UDDI supports the automatic discovery of services implementing a common public tModel interface, there have been only few attempts to find a standardized form to describe the quality of service (QoS) properties of Web services. We introduce our approach "Web service QoS (WS-QoS)" that enables an efficient, dynamic, and QoS-aware selection and monitoring of Web services. The prototype of our approach is implemented with the .NET technology, including the following components: a WS-QoS Editor for the specification of QoS properties, a WS-QoS Requirement Manager for retrieving QoS requirements specified by client applications, a Web service broker for an efficient and QoS-aware selection of Web service offers, and a WS-QoS Monitor for checking the compliance of the service offers.