QoS-based Discovery and Ranking of Web Services

• Published in: 2007 16th International Conference on Computer Communications and Networks pp. 529 - 534
• Main Authors: Al-Masri, E., Mahmoud, Q.H.
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01.08.2007
• Subjects: Availability; Delay; Discovery of Web Services; Information science; Particle measurements; Publishing; QoS; Quality of service; Ranking; Ranking of Web Services; Service Registries; Simple object access protocol; Standards publication; Throughput; UDDI; Web Service Broker; Web services
• ISBN: 9781424412501; 1424412501
• ISSN: 1095-2055
• DOI: 10.1109/ICCCN.2007.4317873

Discovering Web services using keyword-based search techniques offered by existing UDDI APIs (i.e. Inquiry API) may not yield results that are tailored to clients' needs. When discovering Web services, clients look for those that meet their requirements, primarily the overall functionality and quality of service (QoS). Standards such as UDDI, WSDL, and SOAP have the potential of providing QoS-aware discovery, however, there are technical challenges associated with existing standards such as the client's ability to control and manage discovery of Web services across accessible service registries. This paper proposes a solution to this problem and introduces the Web service relevancy function (WsRF) used for measuring the relevancy ranking of a particular Web service based on client's preferences, and QoS metrics. We present experimental validation, results, and analysis of the presented ideas.