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A Conceptual Data Model of Datum Systems

Published

Author(s)

Michael R. McCaleb

Abstract

A new conceptual data model that addresses the geometric dimensioning and tolerancing concepts of datum systems, datums, datum features, datum targets, and the relationship 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.
Citation
Journal of Research (NIST JRES) -
Volume
104
Issue
4

Keywords

data model, datum, datum feature, datum system, datum target
Created September 23, 1999, Updated February 19, 2017