Efficient Access to Web Services

  • Authors:
  • Mourad Ouzzani;Athman Bouguettaya

  • Affiliations:
  • Virginia Tech;Virginia Tech

  • Venue:
  • IEEE Internet Computing
  • Year:
  • 2004

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Abstract

In order for Web services to expand across the Internet, users need to be able to efficiently access and share Web services. The authors present a query infrastructure that treats Web services as first-class objects. The query infrastructure evaluates queries through the invocations of different Web service operations. Because efficiency plays a central role in such evaluation, the authors propose a query optimization model based on aggregating the quality of Web service (QoWS) parameters of different Web services. The model adjusts QoWS through a dynamic rating scheme and multilevel matching. The rating provides an assessment of Web services' behavior. Multilevel matching allows the expansion of the solution space by enabling similar and partial answers.