Web Services Based Single Sign-on for Hospital Management System

The potential of Internet has been credited with the ability to communicate and collaborate among the partners and transact among multiple organizations. Thus companies are fast moving in the direction of collaborative Business-to-Business (B2B) e-commerce providing the customers and business partners more flexibility and efficiency. Web services are fast replacing the traditional Enterprise Appli-cation Integration (EAI) solutions that suffer from interop-erability issues. Securing web services is important and difficult as the services and clients span disparate plat-forms and security domains. The aim of this paper is to implement efficient and secured single sign-on service for a Hospital Management System (HMS). The HM system consists of various web services like pathology, radiology, clinics etc. These services are exposed to other internal and external entities through reg-istries. The user or doctor once authorized to use one of the services is entitled to access any of the other services based on the type of authentication performed and the privileges acquired.