Semantic Technology for Interoperability of Diverse Data Sources
The Internet of Things means many things to different people, but they all require interoperability – not just connectivity – among the components. This talk will present the use of semantic technology, using OWL and SPARQL, to model and process the metadata needed to provide the context to support interoperability. A scalable framework for sharing information among heterogeneous information sources will be described. This approach has been implemented as a proof of concept in several domains including portable healthcare devices, smart sensor networks, social referral services, and the smart electrical grid. A semantic approach offers a richer representation that also supports automated reasoning as an aid to better exchange contextual meaning, not just data. Finally, a brief review of the state of emerging interoperability standards for the Internet of Things will be given.