A Novel Approach to Grid Service Composition with QoS Global Optimization

Automatic service composition is an important issue in the field of grid, which enables individual services to be composed together to provide the end user a more powerful service, which would significantly improve the service reuse. This paper proposes a novel service composition approach based on QoS global optimization which tackles the QoS-aware composition optimization problem using ACO algorithm. The experimental results show that our model is effective and our approach to search the solution outperforms GA.