ABSTRACT
The exchange of information is vital to analytics involving the interplay among distributed computer-based processes, physical systems, and human operators. Therefore there is a need for a standardized semantics of the information content to be exchanged, so as to be comprehended by the various entities involved. The Semantic Web (https://www.semanticweb.org/) is an extension of the current web, in which information is given well-defined meaning via ontology, better enabling computers and people to work cooperatively. The Semantic Web builds on the W3C's (https://www.w3.org) standard model Resource Description Framework (RDF) (https://www.w3.org/RDF/) for data interchange on the web. RDF integrates a variety of applications using XML for syntax and Uniform Resource Identifier (URI) for naming. This chapter describes RDF, RDF Schema (RDFS) that provides a framework to describe application-specific classes and properties, and Ontology Web Language (OWL) that extends RDFS with additional modeling primitives for enhanced expressivity. Finally, we detail a family of Description Logic (DL) as the underlying theoretical foundation of these frameworks.
