Representing a consensus is one of the most important of the qualities of an ontology. Generally, consensus is understood in ontology engineering as an accurate representation of a shared view or model within an ontology. However, we can also show that, while developing an ontology, checking for the agreement of other existing ontologies that have been published online can be very valuable. Indeed, relying on the Watson Semantic Web search engine and on existing measures of agreement, consensus and controversy in ontologies, we develop a visualization method that allows to emphasize `areas' of an ontology which are in disagreement with online ontologies, as well as elements touching on controversial statements, for which a clear consensus has not been established. Integrating this visualization into the ontology development environment allows for the ontology engineer to quickly identify elements of the ontology which quality might need to be improved, as they relate to such generally disagreed or controversial areas.
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