The role of medicinal ontologies in querying and exchanging pharmaceutical information.

The technology developed for interoperable autonomous systems has significantly changed during the past few years. In particular, XML is rapidly becoming the key standard for data representation and transportation. However, the introduction of XML is not enough but many other XML-based technologies have to be deployed in order to achieve a seamless interoperability between the organisations of the healthcare sector. In this article we have restricted ourselves on electronic prescription systems and on the chances that Semantic Web technologies can provide. In particular, we report our work on medicinal ontologies and how they can be exploited (i) in providing querying facilities on electronic prescriptions and (ii) in achieving semantic interoperability between medicinal information systems. Especially, we introduced our adopted RDF-based messaging and show its gains over XML-based messaging.