Definition
There are two definitions for the phrase “geometrical product specifications” (GPS). In a narrower sense, it refers to geometrical dimensioning and tolerancing (GD&T) and surface texture for specifying allowable geometric variations in a manufactured product. The International Organization for Standardization (ISO) has adopted a broader definition of GPS that includes specifications as well as verification (using measurements) of allowable geometric variations in a product. This entry adopts the broader ISO definition. In this context, the acronym GPS should not be confused with its more popular usage as the “global positioning system.”
Theory and Applications
Introduction
The phrase “geometrical product specifications” was formally introduced in 1996, when a new ISO Technical Committee 213 (ISO/TC 213) titled “Dimensional and geometrical product...
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References
Dantan JY, Ballu A, Mathieu L (2008) Geometrical product specifications – model for product life cycle. Comput Aided Des 40:493–501
Feeney AB, Frechette S, Srinivasan V (2014) A portrait of an ISO STEP tolerancing standard as an enabler of smart manufacturing systems. ASME J Comput Inf Sci Eng 15(2)
ISO (2010) ISO 14405–1:2010 Geometrical Product Specifications (GPS) – dimensional tolerancing – part 1: linear sizes. International Organization for Standardization, Geneva
ISO (2012) ISO 1101:2012 Geometrical Product Specifications (GPS) – geometrical tolerancing – tolerances of form, orientation, location and run-out. International Organization for Standardization, Geneva
ISO (2014) ISO 10303-242:2014 Industrial automation systems and integration – product data representation and exchange – part 242: application protocol: managed model-based 3D engineering. International Organization for Standardization, Geneva
Nielsen HS (2012) The ISO geometrical product specifications handbook – find your way in GPS. International Organization for Standardization, Geneva
Nielsen HS (2013) Recent developments in International Organization for Standardization geometrical product specification standards and strategic plans for future work. Proc Inst Mech Eng Part B J Eng Manuf 227(5):643–649
Requicha AAG (1983) Toward a theory of geometric tolerancing. Int J Robot Res 2(4):45–60
GPS Roadmap (2015) Dimensional and geometrical product specifications and verification, Roadmap. http://isotc213.ds.dk/. Accessed 26 Mar 2015
Srinivasan V (2001) An integrated view of geometrical product specification and verification. In: Proceedings of the 7th CIRP seminar on computer aided tolerancing, 24–25 Apr 2001, Cachan, pp 7–17
Srinivasan V (2004) Theory of dimensioning: an introduction to parameterizing geometric models. Marcel Dekker, New York
Srinivasan V (2007) Computational metrology for the design and manufacture of product geometry: a classification and synthesis. ASME J Comput Inf Sci Eng 7(1):3–9
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Srinivasan, V. (2015). Geometrical Product Specification. In: The International Academy for Produ, ., Laperrière, L., Reinhart, G. (eds) CIRP Encyclopedia of Production Engineering. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-35950-7_16757-1
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DOI: https://doi.org/10.1007/978-3-642-35950-7_16757-1
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