Ontology Life Cycle: A Survey on the Ontology and its Development Steps

In the last decades, the turnout has become great for the use of ontology in various fields, such as web technologies, database integration, multi agent systems, natural language processing, etc. . . The main goal of this paper is to answer generic questions about ontologies, such as What is the ontology Which are the different Types of ontologies What is the purpose of the use of ontologies in an application Which methods can I use to build ontology During the paper we discussed the definition of Ontology, types of ontologies (Formal and Informal ontology) and its Component. Also, highlighted some of the languages used in the construction of the Ontologies beside the ontology Building Tools. In addition, we listed the agreed steps for building the Ontology. In conclusion, we did not overlook to mention some of the Ontology projects specifically in Holy Quran Domain.