Technological Innovation

What is EN ISO 10303-23:2021?


The International Organization for Standardization, commonly known as ISO, is an independent, non-governmental international organization that develops and publishes standards. EN ISO 10303-23:2021 is a specific standard within the ISO 10303 series, which focuses on the standardization of computer-interpretable representation and exchange of product manufacturing information.

Understanding EN ISO 10303-23:2021

EN ISO 10303-23:2021, also known as STEP (Standard for the Exchange of Product model data) - Application protocol: Representation and exchange of distributed numerical control (DNC) program data - Part 23: Resource constructs, defines a standard method for representing and exchanging numerical control (NC) program data. This standard enables efficient and accurate communication between different software systems involved in the CNC machining process.

This standard provides a common language for representing information such as cutter location data, toolpath information, and associated metadata. It specifies the structure, format, and syntax of the data format used to describe DNC program data, ensuring interoperability and compatibility across different software applications.

Benefits and Applications

EN ISO 10303-23:2021 offers several benefits to various stakeholders in the manufacturing industry:

Improved interoperability: The standard ensures that CNC machines can understand and interpret program data consistently, regardless of the software used to create it. This eliminates errors and reduces time spent on manual reprogramming or code conversion.

Efficient data exchange: With a standardized format for DNC program data, manufacturers can seamlessly exchange information with suppliers, partners, and customers. This improves collaboration, streamlines the production process, and reduces lead times.

Future-proofing: By following this international standard, businesses can stay up-to-date with the latest advancements in CNC machining technology. It allows for easy integration of new software tools, machines, and manufacturing processes without major disruptions to existing systems.


EN ISO 10303-23:2021 is a crucial standard that facilitates the seamless exchange of numerical control program data in the manufacturing industry. Its adoption ensures consistent interpretation and efficient communication between different software systems and CNC machines. By adhering to this standard, manufacturers can enhance interoperability, streamline their operations, and stay at the forefront of technological advancements in CNC machining.



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