Introduction

As a modelling language, it is important for OWL to have a graphical notation.

This is not to be confused with the broader area of ontology visualization, which potentially caters for a vast array of views and graphical editing facilities.

A graphical notation is simply a graphical alternative to the other OWL syntaxes.

Graphical Notations developed for OWL

• UML Graphical Notation

UML Profiles for RDF and OWL have been developed as part of OMG's Ontology Definition Meta Model (ODM).

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Comparison

• The UML Graphical Notation developed within the ODM appears to be the most mature approach.