—Ontology is a concept to organize domains that can
be widely used in many fields. For building the OWL ontology,
several existing data sources such as XML, relational databases
were used. Most researchers try to map data in a format of
relational database into the OWL ontology using OWL syntax,
which sometimes is difficult, especially for a person who does
not know this syntax, or uses mistaken work to create the OWL
ontology. So, in this research, we propose a mechanism to
construct OWL ontology in order to reduce the problem of lack
of understanding about the OWL ontology syntax based on
Entity Relationship Model (ER), which is a model for
describing data in a conceptual level of database design. We
demonstrate a step-by-step transformation of ER model into
OWL ontology using a tool editor called Protégé. The
evaluations of the building ontology will use FaCT++ and
HermiT 1.3.8. The results have shown that the ability to convert
each part of ER model is very accurate, fast and easy to use.
—ER model, OWL ontology, Protégé editor.
The authors are with the School of Computer Engineering, Suranaree
University of Technology, Nakhon Ratchasima 30000, Thailand (e-mail:
Cite:Pasapitch Chujai, Nittaya Kerdprasop, and Kittisak Kerdprasop, "On Transforming the ER Model to Ontology Using Protégé OWL Tool," International Journal of Computer Theory and Engineering vol. 6, no. 6, pp. 484-489, 2014.