The XML and Semantic Web Worlds: Technologies, Interoperability and Integration. A Survey of the State of the Art

In the context of the emergent Web of Data, a large number of organizations, institutes and companies (e.g., DBpedia,ACM, IEEE, IBM, NASA,BBC,etc.) adopt the Linked Data practices and publish their data utilizing Semantic Web (SW) technologies. On the other hand, the dominant standard for information exchange in the Web today is XML. Many international standards (e.g., Dublin Core, MPEG-7,METS, TEI, IEEE LOM,etc.) have been expressed in XML Schema resulting to a large number of XML datasets. The SW and XML worlds and their developed infrastructures are based on different data models, semantics and query languages. Thus, it is crucial to provide interoperability and integration mechanisms to bridge the gap between the SW and XML worlds.