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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.
It is an ASCII-based format. [1]: 59 Its official title is: Automation systems and integration — Product data representation and exchange. It is known informally as "STEP", which stands for "Standard for the Exchange of Product model data". ISO 10303 can represent 3D objects in Computer-aided design (CAD) and related information.
ISO 10303-21: Data exchange form of STEP with an ASCII structure; ISO 10303-22: Standard data access interface, part of the implementation methods of STEP; 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 ...
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 structure of an ATS is defined in part 34. The original plan of STEP was to have for every AP 2xx a corresponding ATS 3xx, but only a few were finally realized till today. Part 304 - Abstract test suite: Mechanical design using boundary representation
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: Late Bound XML markup declaration set, independent of all EXPRESS schemas, to describe the XML representation of the data governed by each schema
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.
ISO 10303-22; ISO 10303-28; ISO 10303-238; A. ISO 10303 Application Modules; E. EXPRESS (data modeling language) S. STEP-NC This page was last edited on 31 ...