About ontologies
An ontology is a data model that encompasses a representation, formal naming and definition of the classes, properties and relations between the concepts, data and entities.
PoT Core Ontology covers the areas of built environment, indoor condition sensors and other devices in buildings, data products, maintenance service requests, and many more. The ontology is developed according to new business cases.
PoT Core Ontology is described in OWL. https://www.w3.org/TR/2004/REC-owl-guide-20040210/#BasicDefinitions