page_title: EXPRESS (data modeling language)
hierarchical_section_title: EXPRESS (data modeling language)
context_page_description: EXPRESS is a standard data modeling language for product data. EXPRESS is formalized in the ISO Standard for the Exchange of Product model STEP, and standardized as ISO 10303-11.
context_section_description: EXPRESS is a standard data modeling language for product data. EXPRESS is formalized in the ISO Standard for the Exchange of Product model STEP (ISO 10303), and standardized as ISO 10303-11.
caption: Fig 1. Requirements of a database for an audio compact disc (CD) collection, presented in EXPRESS-G notation.