Format compatibility: define where IFC building model will be used and what round-trip integrity must prove there.
Preserve the untouched IFC building model asset and record scene structure before changing geometry, materials, textures, hierarchy, or metadata for round-trip integrity.
For IFC building model round-trip integrity, Keep the sample file, application versions, import and export settings, screenshots, logs, and fallback format. Product, marketplace, regional, and compliance decisions still require the responsible specialist.