JUCS - Journal of Universal Computer Science 16(13): 1720-1744, doi: 10.3217/jucs-016-13-1720
Trust-Oriented Composite Service Selection with QoS Constraints
expand article infoLei Li‡, Yan Wang‡, Ee-Peng Lim§
‡ Macquarie University, Sydney, Australia§ Singapore Management University, Singapore, Singapore

Corresponding author: Lei Li ( leili@science.mq.edu.au )

© Lei Li, Yan Wang, Ee-Peng Lim.
This article is freely available under the J.UCS Open Content License.
Citation: Li L, Wang Y, Lim E-P (2010) Trust-Oriented Composite Service Selection with QoS Constraints. JUCS - Journal of Universal Computer Science 16(13): 1720-1744. https://doi.org/10.3217/jucs-016-13-1720
Open Access
Abstract
In Service-Oriented Computing (SOC) environments, service clients interact with service providers for consuming services. From the viewpoint of service clients, the trust level of a service or a service provider is a critical factor to consider in service selection, particularlywhen a client is looking for a service from a large set of services or service providers. However, a invoked service may be composed of other services. The complex invocations in composite services greatly increase the complexity of trust-oriented service selection. In this paper, we propose novel approaches for composite service representation, trust evaluation and trust-oriented com-posite service selection (with QoS constraints). Our experimental results illustrate that compared with the existing approaches our proposed trust-oriented (QoS constrained) composite serviceselection algorithms are realistic and enjoy better efficiency.
Keywords
composite service, composite service selection, composite service representation, trust evaluation, Monte Carlo method