A customized service to citizens can be provided using service-oriented architecture. Web Service Management System (WSMS) is a comprehensive framework that provides an integrated view on the management of web service. It helps in providing a service-centric framework to deliver services to citizens. The proposed WSMS enable citizens to select their needed services. It focuses on the following key components: service composition, service optimization and service privacy preservation. The service composition provides support for combining various services. It also enables the customized delivery of services. The service optimization selects the best needed service to fulfill citizens’ service requirements. The privacy preservation provides security support.