A Quality of Service (QoS) Driven Automatic Service Composition Algorithm

Abstract

In complex and large scale systems, such as service cloud, huge number of service resources makes lots of user to raise personalized complex service processing request. At such sitation, we need high performance and real time service composition system to meet functionalities requirement, and at the same that to maximize the resource utilization of system. We have two major challenges to build such high performance composition system: the ability to parallel processing large scale service request in the front end; and the ability to monitoring and fetching dynamic QoS to support QoS driven service composition planning calculation in the back end. We propose a three-layers filtering based QoS driven automatic service composition algorithm. The experiments show that our algorithm significantly improves the service composition performance.