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A Conceptual Data Model of Datum Systems

Journal of Research of the National Institute of Standards and Technology (1999) 104(4) 349-400
DOI: 10.6028/jres.104.024
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Abstract

A new conceptual data model that addresses the geometric dimensioning and tolerancing concepts of datum systems, datums, datum features, datum targets, and the relationships among these concepts, is presented. Additionally, a portion of a related data model, Part 47 of STEP (ISO 10303-47), is reviewed and a comparison is made between it and the new conceptual data model.

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McCaleb, M. R. (1999). A Conceptual Data Model of Datum Systems. Journal of Research of the National Institute of Standards and Technology, 104(4), 349–400. https://doi.org/10.6028/jres.104.024

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