Evaluation on the categorical DBMS for the VirtualGPS knowledge system

The Geometrical Product Specification (GPS) is a set of standards widely adopted by modern manufacturing industries for expressing tolerances and communicating geometrical requirements. It has great benefit in reduction of manufacturing cost, alleviation of design and manufacturing misunderstandings and insurance of the consistency of geometric characteristics for the machining products through the manufacturing life-cycle. The development of a virtualGPS knowledge based system to facilitate the usage of the GPS and the training of new engineers is described in this paper. This paper focuses on giving a short evaluation of the so-called “categorical” Database Management System (DBMS) developed for storage and retrieval of data for the system.