BIM and IFC: exchange with a declared purpose
A shared building model is useful only when the receiving workflow gets the information it requires.
How to use this idea
IFC describes building and infrastructure information exchange across disciplines and lifecycle stages. Maha proposes testing an exchange against a small declared requirement set: identities, units, quantities and relationships needed for the next analysis. A file opening successfully is only the first check.
Worked illustration
Before passing a hypothetical envelope model to an analyst, compare a sample wall identifier, its area and its units on both sides of the exchange. Report a missing property rather than replacing it with zero.
All numerical examples here are synthetic, not measured building results.
Checks before relying on a result
- Identify schema version and exchange purpose.
- Check required properties after export and import.
- Record unsupported or lost information.
What this does not establish
No IFC parser, exchange certification or round-trip validator is implemented here.
Sources and review
Automated editorial preparation, not independent expert review. Examples and proposed workflows are Maha-authored.
Locator: 1 Scope; General use
Supports: IFC defines information exchange across building lifecycle disciplines; exchange scope must be specified.
Limit: An exchange standard is not approval of a design.
Inspection and reuse
Selected HTML sections inspected 2026-09-27. Linked original; short original summary. Documentation identifies CC BY-ND 4.0; no schema or documentation republished.