A requirement evolution system for medical service composition

We propose a system to address the requirement change management in medical composed service (MCS). A MCS is collaboration between autonomous web services to provide a value-added service for its patients in medical area. The purpose of this research is to implement a requirement evolution system for medical service composition to support engineers to add, remove and manage medical services change issue. Firstly, the users can view the current medical composed service and detailed information of the service. Secondly, the users can import the change file or operate the graphic interface directly to manage the services, such as add a service from the available service list, and remove a service from the current composed service. The system works well to react to the requirement changes. It generates a BPEL file after the requirement evolution, thus indicating the effectiveness of the system.