Ontology Construction on Feature Characteristic of Linear Dimension about Geometrical Production Specification

In order to solve the problem of sharing and delivering the information during the designing, the manufacturing and the measuring periods, the ISO proposed the Geometrical Production Specification and verification (GPS) standards. This paper establishes an ontology for the geometrical features information of linear dimensions in the general GPS matrix. Firstly, the classes, their attributions, and constraint relations about the linear dimensions in the general GPS matrix are designed. And information ontology of linear dimensions is built by making use of natural language and OWL. And then the ontology is translated to TBox, which is the terminology set of description logic (DL) and introduces the vocabulary of the linear dimensional domain. At the same time, the ABox is constructed, which contains assertions about named individuals in terms of this vocabulary and takes a simple package part as an example. Finally, ontology is edited with OWL language on the platform named Protege. The owl file generated consists of the characteristic information of linear dimension, which is the preparation work of geometrical specification and verification.