5W1H-based Conceptual Modeling Framework for Domain Ontology and Its Application on STPO

It is laborious and time consuming to build domain ontology, which models a specific domain and specifies the concepts in a particular subject. In this paper, a 5W1H-based conceptual modeling framework for domain ontology is proposed, which is used to analysis domain concepts and relations from six aspects including Who, When, Where, What, Why and How. The definition of domain ontology, domain concept and domain relation are also presented. According to the framework, the conceptual model of Science & Technology Project Ontology (STPO) in science and technology domain is designed, in which main concepts and relations within the STPO are clearly described. From the analysis, the 5W1H conceptual modeling framework can be mapped to the class model in Object-Oriented method, which is used to model things in real world. Application shows that the framework is effective to model domain knowledge and scalable to business changes and user requirements.