ISO 10303-2:2024

Overview

ISO 10303-2:2024, titled Industrial automation systems and integration - Product data representation and exchange - Part 2: Vocabulary, is an international standard developed by ISO. This document establishes a unified vocabulary for the ISO 10303 series, widely known as STEP (Standard for the Exchange of Product model data). STEP enables consistent, reliable product data representation and exchange across industrial automation systems.

By defining standardized terminology, ISO 10303-2:2024 ensures clear communication and interoperability among diverse stakeholders, including manufacturers, software vendors, and engineers, throughout the product lifecycle. The vocabulary includes terms relevant to data modeling, systems integration, and information exchange in industrial settings.

Key Topics

ISO 10303-2:2024 covers a wide range of topics essential for understanding product data representation and exchange, including:

• General terms used across the ISO 10303 series
• Data modeling languages, including EXPRESS and EXPRESS-X
• SysML terminology for systems modeling
• Standard data access interfaces
• XML representations of product data schemas
• Conformance testing methods to ensure standards compliance
• Product description fundamentals for consistent data definitions
• Geometric and topological representations for 2D and 3D modeling
• Material and engineering properties
• Visual presentation, shape tolerances, and process terminology
• Mathematical concepts relevant to product modeling
• Finite element analysis (FEA) and computational fluid dynamics (CFD) terms
• Procedural and hybrid data representation
• Assembly and product structure vocabulary
• Configuration management
• Quality criteria and inspection schemas

This rich vocabulary supports the precise definition, exchange, and management of product data in automated industrial environments.

Applications

The standardized terminology in ISO 10303-2:2024 delivers significant practical value in various domains:

• Product lifecycle management (PLM): Enables seamless data integration and exchange throughout design, manufacturing, maintenance, and disposal stages.
• Computer-aided design (CAD) and engineering (CAE): Facilitates clear data exchange between software applications using different internal models and structures.
• Industrial automation systems: Improves interoperability between automated production systems, equipment, and digital twins.
• Supply chain collaboration: Supports robust information exchange between partners, contractors, and suppliers using standardized terms, reducing miscommunication and improving data quality.
• Software development: Assists software vendors in implementing tools that read, write, and verify STEP-compliant data formats and schemas.
• Quality assurance and compliance: Provides the vocabulary for specifying conformance testing and ensuring adherence to international product data standards.

By fostering a common understanding, ISO 10303-2:2024 underpins effective digitalization and integration across complex engineering and manufacturing processes.

Related Standards

ISO 10303-2:2024 is a foundational part of the broader ISO 10303 (STEP) series. Several related standards frame the landscape of product data exchange and integration, including:

• ISO 10303-1: Overview and fundamental principles of product data representation and exchange
• ISO 10303-21: Implementation methods for the clear text encoding of product data
• ISO 10303-11: Description methods for the EXPRESS language, used for data modeling
• ISO 10303-28: XML representation of EXPRESS schemas and data
• ISO 10303-239: Product lifecycle support (PLCS)
• ISO 10303-242: Managed model-based 3D engineering (MBD)

Together, these standards ensure effective and reliable product data interoperability, supporting digital transformation and Industry 4.0 initiatives across global industries.

For more information on the ISO 10303 series and related documentation, visit www.iso.org.