Visualisation Support for the Protégé Ontology Competency Question Based Conceptual-Relationship Tracer

The competency evaluation of an ontology is a semantic analysis typically performed by an ontology engineer using a premeditated set of competency questions with the aid of evaluation tool such as the Competency Question based Conceptual-Relationship Tracer (CQ-CRT). A main limitation of the CQ-CRT that has been developed as a front-end application for the Protégé editor is that its result is represented in textual form, which is sometimes long winded and bogged with unwanted redundancies. It makes the result hard to trace and difficult to understand. We intend to assist the production of a visual representation of the textual result generated by the CQCRT in order to better promote the transparency and traceability of the analytic information. Jambalaya has been identified as a suitable visualiser plugin that can be adapted for providing the visualisation support. Consequently, this paper discusses the approach we have taken to adapt and integrate Jambalaya into CQ-CRT. A systematic testing and analysis was conducted to evaluate and improve the effective functioning of the integrated CQ-CRT visualisation tool. The analysis shows that the tool is able to afford the level of interactivity and visual expressiveness that meets the desired query requirements.