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ISO EXPRESS Data Modeling Language

EXPRESS is a data modeling language designed to support the STEP data modeling activities within ISO.

EXPRESS-X is an extension to the EXPRESS language designed to support the translation of data populations from one EXPRESS schema to another.

All STEP documents are identified as ISO 10303-nnn, where nnn is the part number. The EXPRESS LRM (Language Reference Manual) is ISO 10303-11. The EXPRESS-X LRM is ISO 10303-14.

For more information about ISO, STEP, and EXPRESS follow these links:

Craig Lanning
Last modified: Mon Mar 9 21:49:14 EDT 2009