Optimization to Quality-of-service-driven web service composition using modified genetic algorithm

In the web service management Quality of service (QoS) has become an important issue due to the vast number of services that provide the same functionality but with different features. Selecting QoS based services for web services is considered to be global optimization problem. There are several non-functional factors that integrated into Quality of service in web services such as execution cost, execution time, availability, successful execution rate and security. There is a huge demand from the clients for the multiple functionalities in services. Therefore, optimization in the selection of web services from among numerous plans that satisfies client requirements has become a top priority. In this paper, the improved Genetic Algorithm (iGA) is used for QoS-based web service composition. The experiments show that the algorithm is a feasible and efficient method for Web services selection. The dataset of web services used in this study is available at http://bit.ly/WSSelection.