doi: 10.4304/jsw.6.3.366-373
QoS-based Selection of Multi-Granularity Web Services for the Composition
- 1 College of Computer Science and Technology, Zhejiang University, Hangzhou, China
- 2 State Street Corporation, Boston, MA, USA
Abstract
Existing methods for QoS-aware services composition only consider web services whose service class is specified in the process definition as the candidate. However, there may exist some services that could also accomplish partial goal of the web service composition but their service classes do not appear in the process definition. In this paper, we propose a new QoS-aware service composition approach, which expands the choice for services selection by allowing web services of various granularities to be available for selection. A method based on Mixed Integer Linear Programming (MILP) is proposed to solve the QoS-based Multi-Granularity Service Selection Problem (QMGSSP), which optimizes the user-defined objective and meets the end-to-end QoS constraints as well. Experiments show the effectiveness of our approach.
Keywords
- web service
- service composition
- QoS
- m
How to Cite
Bo Zhou, Keting Yin, Honghong Jiang, Shuai Zhang, and Aleksander J. Kavs, "QoS-based Selection of Multi-Granularity Web Services for the Composition," Journal of Software, vol. 6, no. 3, pp. 366-373, 2011. https://doi.org/ 10.4304/jsw.6.3.366-373
Copyright & License
Copyright © 2011 by the authors. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).