Standards

STEP: AP242 standard for CAD

STEP-NC: AP238 standard for CAM and machining.

IFC: Industry Foundation Classes for BIM

We have been active since 1988, helping to build and test many of the STEP ISO standards. We also host development and testing forums, and an EXPRESS schema archive.

• Older STEP Implementors Meetings
• Past STEP Manufacturing Meetings
• ISO TC184/SC4 website: working group documents