IFC Quality Control

What Two Days at VDI Wissensforum Actually Cover

19. May 2026

Cover Image Credit: VDI Wissensforum

The May 2026 session of Štefan's IFC quality control course at VDI Wissensforum takes place May 19–20 in Hamburg. The November session is online, November 2–3.

Two days. The course covers the full process from AIA to model check, with hands-on exercises throughout.

What two days looks like

The first part of the course is about requirements. An AIA that can't be verified automatically isn't doing its job — it just pushes the quality problem downstream. The course covers how to write requirements in IDS and mvdXML: what properties to check, how to handle different IFC versions, and where the differences between IFC2x3 and IFC4 exports matter for automated checking.

IFC version behavior is one of those things that looks like a minor detail until a checking tool fails silently. IFC2x3, IFC4, and IFC4x3 export the same data differently. Knowing which export to expect — and why — is part of setting up a check that actually works.

The second day covers model checking tools and BCF. Checking tools test specific things and skip others. The course works through how to read results correctly, what to do when findings don't mean what they look like, and how to route issues through BCF to the right team and close them out.

Participants bring laptops. The exercises work through real files.

Full program and registration at: here