ontology

The GNDO uses the language of visual communication, illustration, and technical drawing to provide classes for describing graphics and their parts. (A graphic is defined as a figure that is a pictorial model of a referent, such that the figure has a resemblance to the physical form of the referent.) Classes include types of graphical marks, roles of graphical marks, and qualities of graphics such as graphical style, view, and projection type. The GNDO is rooted in classes from the Information Artifact Ontology. The driving use case is semantic description of anatomical graphics for information systems, but most classes in the GNDO are domain-independent and therefore can be used to describe graphics for any subject matter.