A novel framework for bindings synchronization of Web services

摘要

Over the last decade, Web services technology has emerged as a promising solution to address interoperability problems that prevent distributed software systems from being integrated with one another. Accordingly, an increasing number of Web services have been deployed over the Internet to overcome limitations of existing integration models. Typically to use Web services, service providers publish in service registries information about their Web services including the service qualities and bindings that the service consumers use to select first and then to bind to Web services they need. However, as Web services increase in number, the number of service registries holding this information is also increased raising the challenge of how to synchronize such information over these registries since it may change over time. To address the above challenge, we first review in this paper an example of a decentralized architecture of service repositories that highlights the need to synchronize Web service information, especially service bindings, and then, we propose an agent-based synchronization model to meet this need. Finally, an experimental study is conducted to evaluate the performance of our proposal.