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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.
The basis for STEP was the Product Data Exchange Specification (PDES), which was initiated during the mid-1980's and was submitted to ISO in 1988. [ 4 ] [ 5 ] The Product Data Exchange Specification (PDES) was a data definition effort intended to improve interoperability between manufacturing companies, and thereby improve productivity.
The STEP (Standard for the Exchange of Product Model Data) file format, also known as ISO 10303, is a standardized 3D model format in the field of engineering. [7] STEP files are used to describe the complete 3D geometry of an object in a way that is independent of any specific CAD (Computer-Aided Design) system, making them highly ...
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
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; Part 24 - C language binding of the standard data access interface; Part 25 - EXPRESS to OMG XMI binding
IFC defines multiple file formats that may be used, supporting various encodings of the same underlying data. [7] IFC-SPF is a text format defined by ISO 10303-21 ("STEP-File"), where each line typically consists of a single object record, and having file extension ".ifc". This is the most widely used IFC format, having the advantage of compact ...
COBie has been incorporated into software for planning, design, construction, commissioning, operations, maintenance, and asset management. COBie may take several approved formats include spreadsheet, STEP-Part 21 (also called IFC file format), and ifcXML. The current COBie test data of record was developed by an international team of designers ...
EXIF – Exchangeable image file format (Exif) is a specification for the image format used by digital cameras GIF – CompuServe 's Graphics Interchange Format GIFV – Graphics Interchange Format Video, a format used for short, looping videos that combines the advantages of GIFs and videos, with better playback quality and lower file sizes [ 14 ]