Toward Autonomic Web Services Trust and Selection

Emerging standards in Web services enable the development of large-scale applications in open environments. In particular, they enable services to be dynamically bound. However, current techniques fail to address the critical problem of selecting the right service instances to bind. The right service instances would be determined based on user preferences and business policies in a manner that considers their trustworthiness. We propose a multiagent approach that naturally provides a solution to the selection problem. This approach is based on an architecture and programming model in which agents represent applications and services. The agents support considerations of semantics and quality of service (QoS). They interact and share information, in essence creating an ecosystem of collaborative service providers and consumers. Consequently, our approach enables applications to be dynamically configured at runtime in a manner that continually adapts to the preferences of the participants. Our agents are designed using decision theory and make use of Semantic Web knowledge representation techniques for shared conceptualizations (ontologies). We evaluate our approach conceptually and through simulation experiments.

Author dc:creator

• Maximilien, Eugene Michael

Advisors dc:contributor.advisor

• Laurie A. Williams, Committee Member
• Mladen A. Vouk, Committee Member
• Peter R. Wurman, Committee Member
• Munindar P. Singh, Committee Chair

• semantic Web services
• trust
• Web services
• trustworthiness
• multiagent systems
• intelligent agents
• reputation systems
• service selection
• quality of service
• QoS
• ontology

Statement dc:rights

• I hereby certify that, if appropriate, I have obtained and attached hereto a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dissertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to NC State University or its agents the non-exclusive license to archive and make accessible, under the conditions specified below, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report.

Dc Identifier Other

etd-09092004-134545

OAI record oai:identifier

https://repository.lib.ncsu.edu/server/oai/request?verb=GetRecord&metadataPrefix=dim&identifier=oai%3Arepository.lib.ncsu.edu%3A1840.16%2F4075