Integrating Behavioral Trust in Web Service Compositions

  • Authors:
  • Sharon Paradesi;Prashant Doshi;Sonu Swaika

  • Affiliations:
  • -;-;-

  • Venue:
  • ICWS '09 Proceedings of the 2009 IEEE International Conference on Web Services
  • Year:
  • 2009

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Abstract

Algorithms for composing Web services (WS) traditionally utilize thefunctional andquality-of-service parameters ofcandidate servicesto decide which services to include in the composition.Users oftenhavediffering experienceswitha WS. Whiletrust ina WSismulti-faceted andconsists of security andbehavioral aspects, ourfocus in thispaper is on the latter.We adopta formal model fortrust in a WS, whichmeets many of our intuitions about trustworthyWSs.We hypothesizepredictors of a positive experiencewith a WSandconduct asmall pilotstudy toexplorecorrelations betweensubjects' experienceswith WSs ina composition andthe predictorvalues for those WSs.Furthermore,we show how we mayderivetrust for compositions from trust models of individual services.Weconclude by presenting and evaluating a novel framework, calledWisp, that utilizes the trust models and, in combination with anyWS composition tool, choosescompositions to deploy that are deemedmost trustworthy.