1. Containment and grouping (2)
2. Units and measure (11)
3. Spatial model (4)
4. Building elements (1)
5. Building materials (3)
6. Actors (8)
7. Cost model (7)
8. Properties and PropertySets (3)
9. Geometry (0)
10. Relationships (7)
11. Other (8)

Containment and grouping (2)
- Containment [all]
- Containment: Spatial [all]

Units and measure (11)
- Dimensional exponents [all]
- Quantity : area [all]
- Quantity : count [all]
- Quantity : length [all]
- Quantity : volume [all]
- Quantity : weight [all]
- Units : SI [all]
- Units : context dependent [all]
- Units : conversion based [all]
- Units : derived [all]
- Units : monetary [all]

Spatial model (4)
- Building [all]
- Building storey [all]
- Project [all]
- Site [all]

Building elements (1)
- Building element (generic) [all]

Building materials (3)
- Material [all]
- Material layer set [all]
- Material list [all]

Actors (8)
- Actor [all]
- Actor role [all]
- Address : postal [all]
- Address : telecom [all]
- Manufacturer [all]
- Organization [all]
- Person [all]
- Person and organization [all]

Cost model (7)
- Cost [all]
- Cost assignment [all]
- Cost modifier #1 [all]
- Cost modifier #2 [all]
- Cost schedule [all]
- Cost schedule : budget [all]
- Cost value [all]

Properties and PropertySets (3)
- Dynamic property assignment [all]
- Element quantity [all]
- Manufacture information [all]

Relationships (7)
- Actor association [all]
- Classification association [all]
- Cost schedule / budget assignment [all]
- Document association [all]
- Material association [all]
- Material layer set usage [all]
- Unit assignment [all]

Other (8)
- Calendar date [all]
- Classification notation [all]
- Classification reference [all]
- Classification reference with source [all]
- Classification source [all]
- Date and time [all]
- Document reference : full [all]
- Document reference : light weight [all]