Overview of the most prevalent classes and relations of the seven continuous care core ontologies. The figure visualizes the most prevalent classes, their relations and properties of the seven continuous care care ontologies, namely the Upper, Sensor, Context, Profile, Role & Competence, Medical and Task ontology. The squares represent the classes. The dashed arrows depict subclass relationships. The blue arrows represent relationships between classes (object properties) and between classes and ranges (datatype properties). Ovals represent the ranges of the datatype properties.