State of art in standardization in the geometrical product specification area a decade later

Abstract

The purpose of this paper is to highlight current fundamental assumptions in the ISO Geometrical Product Specification (GPS) system and indicate recent trends in the GPS area standardization as well as point out selected new tools that are available for designers, manufacturing engineers, and quality staff. ISO/TC 213 systematic approach to developing a coherent system of the ISO GPS standards is shown. The content of the main fundamental standards that establish the base of the ISO GPS system is analysed. Limitations and lack of some standards are indicted. The relations between base concepts like features, operations, characteristics, and uncertainties are shown. Next global standards that refer to dimensioning and geometrical tolerancing are indicated and discussed. The current attempt to develop those standards as rule-based standards, not case-based standards is highlighted and advantages as well as drawbacks of such an approach are underlined. New projects and works on selected standards under development are also reported.