| Name | Type | Description | 
| AssemblyMark | 
P_SINGLEVALUE
/
IfcIdentifier
 | 
  | Assembly Mark | A short text reference for the assembly. A means of identifying the assembly within the fabrication shop. |  
 
 | 
| ClientMark | 
P_SINGLEVALUE
/
IfcIdentifier
 | 
  | Client Mark | A short text reference that may be used to identify the assembly for the client. |  
 
 | 
| PrelimMark | 
P_SINGLEVALUE
/
IfcIdentifier
 | 
  | Prelim Mark | A short text reference that may be used to identify the assembly at the bidding or tender stages of the assembly’s production life. |  
 
 | 
| ShippingMark | 
P_SINGLEVALUE
/
IfcIdentifier
 | 
  | Shipping Mark | A short text reference that may be used to identify the assembly at the shipping stages of the assembly’s production life. |  
 
 | 
| BarCode | 
P_SINGLEVALUE
/
IfcIdentifier
 | 
  | Barcode | A numerical interpretaion of the bar code associated with the assembly. The bar code is sometimes used to identify the assembly in the fabrication shop, during transportation, and during erection using a bar code scanner. |  
 
 |