Transactional Web Services Composition: A Genetic Algorithm Approach

Abstract

Service Oriented Architecture implemented by Web Services is one of the most popular and promising software development paradigm, however, it still has some challenging issues. One of that is how to automate web services composition at design time. Services composition reuses existing component services to provide composite service with more complexes, value-added functions that cannot be provided through any single component service; therefore it avoids constructing any new service from scratch. In this paper we propose an approach based on genetic algorithm to automatically composing web service without a workflow template beforehand and ensuring resulting service has reliable behavior (transactional properties). A composite service which is produced through our approach will be able to treat as a unit of work avoiding inconsistence and it does not ask user to define the workflow template manually. Experimental results are presented.