Title: Composition and evaluation of trustworthy web services

Authors: Stephen J.H. Yang, James S.F. Hsieh, Blue C.W. Lan, Jen-Yao Chung

Addresses: Department of Computer Science and Information Engineering, National Central University, No. 300, Jhongda Rd., Jhongli City, Taoyuan County 32001, Taiwan. ' Graduate Institute of Network Learning Technology, National Central University, No. 300, Jhongda Rd., Jhongli City, Taoyuan County 32001, Taiwan. ' Department of Computer Science and Information Engineering, National Central University, No. 300, Jhongda Rd., Jhongli City, Taoyuan County 32001, Taiwan. ' IBM T.J. Watson Research Center, P.O. Box 218, Yorktown Heights NY 10598, USA

Abstract: Web service technology seamlessly enables integration of different software to fulfil dynamic business demands in a platform-neutral fashion. By means of standard interfaces, service requesters can obtain their desired functionalities through certain service discovery mechanism, and service providers can offer the functionality to service requesters without exposing details of provided services. However, the adoption of loosely coupled and distributed services will cause trustworthiness problems. In this paper, we use ontology to describe experience and we utilise statistical techniques along with Petri nets to conduct a trustworthy evaluation method for composite web services. The degree of trustworthiness of all involved services in an aggregated composite service will be evaluated by analysing past experiences so that the trustworthiness of the composite service could be estimated.

Keywords: trustworthy web services; composite web services; ontology; Petri nets; trust; web service evaluation; web service composition.

DOI: 10.1504/IJWGS.2006.008877

International Journal of Web and Grid Services, 2006 Vol.2 No.1, pp.5 - 24

Published online: 01 Feb 2006 *

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