State of art in standardization in GPS area

The ISO family of standards shortly called the GPS standards is characterized. The activity of Technical Committee ISO/TC 213 that has been working towards coordinated and systematic development of international standards covering problems of dimensioning, geometrical tolerancing, surface texture and related metrology is reported. The attempts of the ISO/TC 213 to establish more mathematical, systematic and scientific basis for new standards building are emphasized. The unified model for design, manufacturing and verification based on the improved GPS language and its new concepts like surface models, geometrical features, characteristics, specification uncertainty, correlation uncertainty and operations is aimed to cover all aspects of the product development up to launch on the market.