QoSDIST: A QoS Probability Distribution Estimation Tool for Web Service Compositions

Authors

Huiyuan Zheng, Macquarie University
Jian Yang, General Research Institute for Non Ferrous Metals,Ministry of Science & Technology, China,Macquarie University
Weiliang Zhao, University of WollongongFollow

RIS ID

68610

Publication Details

Zheng, H., Yang, J. & Zhao, W. (2010). QoSDIST: A QoS Probability Distribution Estimation Tool for Web Service Compositions. Services Computing Conference (APSCC), 2010 IEEE Asia-Pacific (pp. 131-138). IEEE.

Abstract

In this paper, a QoS DIstribution eStimation Tool (QoSDIST) is developed to estimate the QoS distributions for service compositions. QoSDIST can generate QoS probability distributions for component web services. When estimating the QoS probability distribution for a service composition, QoSDIST does not put any constraints on the representation of the QoSs of component web services, i.e., the QoS of a component web service can be in single value, discrete values with frequencies, standard statistical distribution, or any general distribution regardless of its shape, which can not be done by any existing approaches. Moreover, QoSDIST can deal with commonly used composition patterns, including loop with arbitrary exit points.