Ontology used on

1.  http://corpus.quran.com/

Ontology of  Quranic concepts

The Quranic Ontology uses knowledge representation to define the key concepts in the Quran. and shows the relationships those between these concepts using predicate logic. the fundamental concepts in the ontology are based on the knowledge contained in traditional sources of quranic analysis, including the hadith of the prophet Muhammmad and the tafsir of ibn kathir.



the diagram above showing the semantic relations between concepts.

2.  http://bioportal.bioontology.org/

The National center for biomedical Ontology is one of the National center Biomedical computing.