Combining a Publish and Subscribe Collaboration Architecture with XQuery Approaches

Markup languages, representations, schemas, and tools have significantly increased the ability for organizations to share their information. Languages such as the Extensible Markup Language (XML) provide a vehicle for organizations to represent information in a common, machine-interpretable format. Furthermore languages, such as the Document Type Definition Language (DTD) and XML Schema Definition Language (XSD) allow organizations to share the schema and structure of their data. Though these approaches facilitate the collaboration and integration of inter-organizational information, the reality is that the schema languages are reasonably difficult to learn, and automated schema integration (without semantics or ontology mappings) is currently an open problem. We introduce an architecture to facilitate organizational collaboration. In this paper, we introduce such an architecture that combines the push features of the publish/subscribe protocol with distributed registry capabilities. In addition, a Java-based, service-oriented implementation entitled Sharx is described and evaluated.