Projecting Web services using presence communication protocols for pervasive computing

This paper presents an approach for the integration of Web Services with presence-based communication services for the purpose of facilitating pervasive computing. A principal goal for pervasive computing is to be able to have easy and secure access to services based on the context of the situation. Service discovery protocols are a key component in achieving this goal but the ability to successfully discover the appropriate services using service discovery is minimal. For many communication and collaborative sessions pushing of services to participants of the sessions is more effective. The approach presented integrates Web services description language (WSDL) with presence-based communications in order to advertise services connected a communication session.