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What is EN ISO 10303-25:2021?

EN ISO 10303-25:2021 is a technical standard that defines the representation of product data using the EXPRESS language and the Extensible Markup Language (XML) for the exchange of product data. It is part of the STEP (Standard for the Exchange of Product Model Data) series of standards, developed by the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC).

The Importance of EN ISO 10303-25:2021

EN ISO 10303-25:2021 plays a crucial role in the interoperability of information systems in various industries, including manufacturing, engineering, and construction. This standard ensures that product data can be exchanged accurately and efficiently between different systems, regardless of their specific software or hardware requirements. By providing a common data representation format, it enables seamless collaboration and reduces errors caused by manual data translation or conversion.

Key Features and Benefits

EN ISO 10303-25:2021 offers several key features and benefits. Firstly, it provides a standardized data model that defines entities, attributes, and relationships necessary to represent complex product information. This allows for consistent interpretation and understanding of product data across different software applications. Additionally, it supports the use of XML as a flexible and widely adopted format for data exchange. XML enables both human-readable and machine-readable data representations, making it easier for data integration and analysis purposes.

EN ISO 10303-25:2021 also promotes data integrity and security by specifying rules for data validation and authentication. It includes mechanisms to verify the accuracy and completeness of exchanged data, ensuring that only valid and authorized information is accepted. Moreover, this standard supports the inclusion of metadata, which provides essential contextual information about the exchanged product data. Metadata enhances the traceability and provenance of data, facilitating auditing and quality control processes.


EN ISO 10303-25:2021 is a vital technical standard that enables efficient and accurate exchange of product data across various industries. Its adoption promotes interoperability, collaboration, and data integrity, resulting in improved productivity and reduced errors. By providing a common language for product data representation, it streamlines communication between different software systems and ensures seamless data integration. As technology continues to evolve, the significance of EN ISO 10303-25:2021 will only increase, making it an essential framework for data exchange and information management.


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