Mappings Guidance and ExamplesSave PDFSave selected topicSave selected topic and subtopicsSave all topicsShareShare to emailCopy topic URLLast UpdatedSep 22, 20261 minute readEngineeringE3D DesignUnified EngineeringE3D Design (Unified Engineering) Use the following as guidance on and examples of flexible mapping. Related LinksPurpose & AssumptionsIFC Spatial StructureCreate Special Purpose E3D Administrative Elements to Map to IFC Spatial EntitiesMapping Attributes and Containment of Spatial ElementsMapping to IFC Non-Spatial ElementsProperties and AttributesOther IFC Relationships