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A STEP-file is ASCII text with the format defined in ISO 10303-21 Clear Text Encoding of the Exchange Structure. [2] ISO 10303-21 defines the encoding mechanism for representing data conforming to a particular schema in the EXPRESS data modeling language specified in ISO 10303-11. A STEP-File is also called p21-File and STEP Physical File.
ISO 10303 is an ISO standard for the computer-interpretable representation and exchange of product manufacturing information. It is an ASCII -based format. [ 1 ] : 59 Its official title is: Automation systems and integration — Product data representation and exchange .
STEP-NC is a machine tool control language that extends the ISO 10303 STEP standards with the machining model in ISO 14649, [1] adding geometric dimension and tolerance data for inspection, and the STEP PDM model for integration into the wider enterprise. The combined result has been standardized as ISO 10303-238 [2] (also known as AP238).
The STEP ISO 10303 Application modules define common building blocks to create modular Application Protocols (AP) within ISO 10303. Higher-level modules are built up from lower-level modules. The modules on the lowest level are wrappers of concepts, defined in the Integrated Resources (IR) or Application Integrated Constructs (AIC). Modules on ...
ISO 10303-28: STEP-XML specifies the use of the Extensible Markup Language (XML) to represent EXPRESS schema; ISO 13584-24: The logical model of PLIB is specified in EXPRESS; ISO 13399: ISO standard for cutting tool data representation and exchange; ISO/PAS 16739: Industry Foundation Classes is specified in EXPRESS; List of STEP (ISO 10303) parts
Part 15 - SysML XMI to XSD transformation [1] Part 21 - STEP-File Clear text encoding of the exchange structure Part 22 - SDAI Standard data access interface specification Part 23 - C++ language binding of the standard data access interface
ISO 10303-22 is a part of the implementation methods of STEP with the official title Standard data access interface or simply SDAI. SDAI defines an abstract Application Programming Interface (API) to work on application data according to a given data models defined in EXPRESS. SDAI itself is defined independent of a particular programming language.
STEP-XML specifies the use of the Extensible Markup Language to represent EXPRESS schema (ISO 10303-11) and the data that is governed by those EXPRESS schema. It is an alternative method to STEP-File for the exchange of data according to ISO 10303. The following specifications are within the scope of ISO 10303-28: