A method to build ontology

After many years research work, many intelligent systems based on knowledge have been created. But the differences in creating methods and applying background contexts make it difficult to share and reuse knowledge. This situation leads to the difficulty of building knowledge systems. In order to solve this problem, we use ontology as a foundation to realize knowledge sharing and reuse. As an important research area in AI, the ontology building method has not acquired a common view. The authors mainly discuss the method for building ontology, its principles and implementation.