Global SOA: RSS-Based Web Services Repository and Ranking

For Global Service-Oriented Architecture (GSOA), we need to make sure that the Web Services provided by the service providers are visible to all potential consumers across the globe. In this paper, we discuss about Universal Description Discovery and Integration (UDDI) and its limitations as public repository. For this, we propose using Really Simple Syndication (RSS) as a repository. RSS is indeed based on the Extensible Markup Language (XML) and hence it enables easy data transformation. It is also platform independent, lightweight and is widely used as open source technology. Due to the auto push nature of RSS, the global RSS repository will only send the recently added Uniform Resource Identifier (URI) links to the subscribed consumers. The client can maintain its local cache for supporting faster execution of most frequently used Web Services. The new URI links provided by the server will get appended to the client´s local cached repository thereby reducing data traffic over the Internet. In GSOA, we discuss logic that will assign the ranks to the Web Services and will help compare Web Services providing similar functionalities; thereby it helps the Web Service consumer to dynamically select the best available Web Service depending on the user criteria. The local RSS-based repository implements the local ranking, wherein the user´s relative preferences are stored. The most important thing is that the local RSS takes priority over the global RSS ranks.