Formalization of description of technological processes for manufacturing of machine-building parts on the basis of ontology and object-oriented databases

The article is devoted to the development of a structural representation of the technological processes of manufacturing machine-building parts on the basis of ontology and object-oriented databases. Based on the generality of the object-frame representation of knowledge for formal ontologies, and for object-oriented knowledge bases, an automated translation from the ontology language into object-oriented databases is considered using the ANTLR software tool. The ontology of technological processes in machine building is constructed on the basis of the analysis of the business process diagram of technology development and its decomposition. The ontology is represented in the RIF language, a kind of XML. A grammar of the RIF language and the EMITTER class have been created to generate code in the language of the object-oriented database db4o. Such a technique allows, when describing the technological process of manufacturing parts in the ontology language, to execute queries as methods of classes db4o, which reduces the time costs and improves the efficiency of such a combined system in comparison with the separate use of the editor OntoStudio or db4o.