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Proposed recommended practice for the representation of schematic symbols in STEP AP 210 (ISO 10303-210)



Jamie Stori, Thomas R. Thurman, Craig Lanning, Mike Benda


The purpose of this document is to propose a recommended practice for the representation of schematic symbols and the integration of schematic symbols with functional and physical representations of packaged electronic component models in ISO 10303-210 (STEP AP 210). While the representation of AP 210 packages and packaged parts has been previously validated through existing implementations, the representation of component functional models and associated schematic symbols has been less thoroughly exercised. AP 210 has dedicated concepts for the representation of a functional element, as well as the association of a functional element with a physical realization through a packaged part and associated package model. The intent in the development of this recommended practice was to leverage existing draughting capabilities within the STEP standards for the presentation of a schematic symbol in AP 210. The schematic symbol is a presentation of the functional model for human visualization, interpretation, and manipulation - the schematic symbol should be a draughting representation of a functional element.
Grant/Contract Reports (NISTGCR) - 15-990
Report Number


STEP, ISO 10303, Electronics


Stori, J. , Thurman, T. , Lanning, C. and Benda, M. (2015), Proposed recommended practice for the representation of schematic symbols in STEP AP 210 (ISO 10303-210), Grant/Contract Reports (NISTGCR), National Institute of Standards and Technology, Gaithersburg, MD, [online], (Accessed April 20, 2024)
Created April 9, 2015, Updated November 10, 2018