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A Comparison and Analysis of Some Ontology Visualization Tools

This paper presents an analysis and comparison of three existing ontology visualization tools with a new ontology visualization tool developed at the Energy Informatics Laboratory of University of Regina, Canada. The new tool is called Onto3DViz, which is designed as a knowledge engineering support tool for ontology visualization. It aims to address the deficiency that existing tools have in their lack of support for dynamic knowledge visualization. The Onto3DViz is a tool that supports a new approach of visualization in that it supports: (1) dynamic knowledge visualization; and (2) complex ontology visualization in 3-dimensional (3D) computer graphics. This paper also discusses the strengths and weaknesses of the four visualization tool when they are measured against a set of assessment criteria.