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OWLGrEd

OWLGrEd provides a graphical notation for OWL 2, based on UML class diagrams. OWL classes are typically visualized as UML classes, data properties as class attributes, object properties as association roles, individuals as objects, cardinality restrictions on association domain class as UML cardinalities, etc. The UML class diagrams are enriched with new extension notations, e.g.:

• fields in classes for equivalent class, superclass and disjoint class expressions written in Manchester OWL syntax;
• fields in association roles and attributes for equivalent, disjoint and super properties and fields for property characteristics, e.g., functional, transitive, etc.;
• anonymous classes containing equivalent class expression but no name;
• connectors (as lines) for visualizing binary disjoint, equivalent, etc. axioms;
• boxes with connectors for n-ary disjoint, equivalent, etc. axioms;
• connectors (lines) for visualizing object property restrictions some, only, exactly, as well as cardinality restrictions.

For a detailed description of the notation, see the OWLGrEd Notation.

See the OWLGrEd home page for information about the OWLGrEd tool family, including notation, research and experience, and success stories.

OWLGrEd Playground: owlgred.semtech.lv.

Mini University demo project

Using OWLGrEd

• Getting Started
• Creating a New Project
• Download and Upload Project
• Notation
• Export and Import