STEP and EXPRESS Foundations

This module introduces the STEP standard (ISO 10303) and the EXPRESS information modeling language that underpins AP 210. No prior experience with STEP or EXPRESS is required.

What You’ll Learn

The purpose and architecture of the STEP (ISO 10303) standard family
How EXPRESS defines information models — entities, types, constraints, and rules
The organizations behind STEP development (ISO TC 184/SC 4, PDES Inc.)
How Application Protocols like AP 210 fit into the STEP framework
The business drivers for standardized electronic design data exchange

Lessons

Introduction to STEP — what STEP is and why it matters
The EXPRESS Language — entities, attributes, types, and schemas
Constrained Objects — rules, constraints, and validation
Information Modeling Summary — key modeling concepts
STEP and PDES Inc. — the organizations behind STEP
STEP Application Protocols — how APs define domain-specific exchange
Engineering Frameworks — standards-based interoperability
Business Context — why AP 210 matters for industry

Next Module

After completing this module, continue with AP210 Concepts to learn the core information model of AP 210.