Fast quality driven selection of composite Web services

JH Jang, DH Shin, KH Lee - 2006 European Conference on …, 2006 - ieeexplore.ieee.org
JH Jang, DH Shin, KH Lee
2006 European Conference on Web Services (ECOWS'06), 2006ieeexplore.ieee.org
The composite Web service selection is the process of building an executable composite
Web service. Generally, the selection process involves decision making in terms of non-
functional properties of Web services such as QoS requirements. Since the number of Web
services is rapidly increasing and the QoS of the Web services environment changes
dynamically, the fast selection is important. This paper presents a fast method for quality
driven composite Web services selection based on a workflow partition strategy. The …
The composite Web service selection is the process of building an executable composite Web service. Generally, the selection process involves decision making in terms of non-functional properties of Web services such as QoS requirements. Since the number of Web services is rapidly increasing and the QoS of the Web services environment changes dynamically, the fast selection is important. This paper presents a fast method for quality driven composite Web services selection based on a workflow partition strategy. The proposed method partitions an abstract workflow into two sub-workflows to decrease the number of candidate services that should be considered. A mixed integer linear programming is utilized for solving the service selection problem. Experimental results show that the partition strategy performed faster than the optimal strategy. Also, the qualities of the selected composite Web services are not significantly different from the optimal one
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