NIST Step Working Form Programmer's Reference. National PDES Testbed Report Series
NATIONAL INST OF STANDARDS AND TECHNOLOGY GAITHERSBURG MD
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The Product Data Exchange Specification PDES is an emerging standard for the exchange of product information among various manufacturing applications. The neutral exchange medium for PDES product models is the STEP physical file format. The National PDES Testbed at NIST has developed software to manipulate and translate STEP models. This software consists of an in-memory working form and an associated physical file parser, STEPparse. The internal operation of the STEPparse parser is described. The implementation of the data abstractions which make up the STEP Working Form is discussed, and specifications are given for the Working Form access functions. The creation of STEP translators using STEPparse is discussed.... Data modeling, PDES, Product data exchange, Schema independent software, STEP, STEP physical file.
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