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The evolution of the harmonized set of ISO/IEC/IEEE 15288-12207 related standards and technical reports that are discussed in this International Standardprovides detailed requirements and guidance on the application of system life cycle processes. This International Standard unifies technical and managementrequirements and guidance from several of these sources to specify the requirements for the...
The new ISO14649 standard (so called STEP-NC) is an extension of STEP in computer numerical controls(CNCs) manufacturing, machining operation and manufacturing features are organized into a series of working steps, and each working step that is a processing instruction can be executed in CNC machine tools. Based on the analysis of STEP-NC data model and file structure, this paper presents a method...
Operation and operator technologies used in new generation geometrical product specifications (GPS) provide the necessary knowledge basis for digitization and standardization in verification process of geometrical products. This paper analyzes the operator formation for perpendicularity error evaluation of an axis, and presents mathematical models and the objective optimization functions of every...
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