IFC Data Enrichment

Data enrichment is the write-side workflow of attaching descriptive data to elements that already exist in a model: property sets, measured quantities, materials, and classification references. Enrichment NEVER changes geometry or spatial structure; it only adds the semantic layer that downstream tools read for quantity take-off, cost, analysis, and compliance.

This skill covers the four enrichment targets, the occurrence-versus-type attachment split, the Pset_ and Qto_ naming rules, and the material set-on-type usage-on-occurrence pattern.

Verified against the IFC 4.3.2 specification (ISO 16739-1:2024) with IFC4 and IFC2x3 deltas noted inline. Applies to IFC2x3, IFC4, IFC4.3.

Quick Reference

The four enrichment targets