Template based SOA framework for dynamic and adaptive composition of web services

Abstract

Automated Web service composition is currently one of the major research problems in the area of service oriented computing. Web services facilitate seamless business-to-business integration. Whenever it becomes difficult to find a single service for a particular task, a composition of services that can together perform the given task, is required. In general, this is accomplished using Service Oriented Architecture (SOA). However, the requirements of the users are frozen before the system locates, composes and executes the required services. The response is not personalized to the user environment. Further, conventional web services cannot handle the context and the context aware web services need to contain the context processing logic. Hence, we propose a framework for dynamic composition of Web services using templates in SOA. This framework allows maximum flexibility for the users to change their requirements at runtime and provides adaptive composition irrespective of whether a web service is context enabled or not.