Construction of Domain Ontology for Engineering Equipment Maintenance Support

According to the problem in the domain of engineering equipment maintenance, such as more knowledge points, broad scope, complex relationships, difficult in sharing and reuse, this paper put forward the category and professional field of engineering equipment maintain ontology, and analyzed knowledge source, extracted eight core concepts such as case, product, function, damage, environment, phenomena, disposal and resource, and formed concept hierarchy model further, and then analyzed data properties and object properties of core concepts, and tried to construct the engineering equipment maintain ontology with protege4.3, which put a solid foundation for the knowledge base and engineering equipment maintenance application ontology.