Providing the uniform description and data interpretation at different stages of the product life cycle (CALS-technology)

The article presents an overview of documents in the field of CALS-technologies of the 10303 series, developed by the International Organization for Standardization ISO and called STEP (Standard for Exchange of Product data - "standard for the exchange of data about the product"). The history of their appearance and the significance of these technical legal acts for the global industry are briefly described. The structure and fundamental concepts of the STEP standards are presented, application protocols introduced by the STEP standards, their role in creating uniform information models are described.