4.0 Object Properties & Property Grouping

This section of the standard defines the properties that should be assigned to a BIM object. It also discusses the grouping of properties and the assignment of properties to object types or object instances.

4.6 Classification properties

  4.6 Classification properties
This sub-section of the standard defines properties to be assigned to an object to classify the object type. As there is no universally adopted classification system, this sub-section allows for the application of multiple classification systems.
Classification system properties

Multiple classification systems can be assigned to an object by including the set of properties in Table 4D for each classification required.
NOTE: Substitute <ClassificationSystemName> in the property name for the required classification system and table designation, if applicable. For example, OmniclassTable23 Examples in Table 4D have used Omniclass Table 23.

Property Description Data Type  Example Type/
 <ClassificationSystemName>Code Required classification code.
Character 23-17-11-00 Type
 <ClassificationSystemName>Title Required classification title. Character Doors Type
 <ClassificationSystemName>Version Published version of the
classification system.
Character 2012-05-16

Table 4D - OBOS_Classification properties

 NZ1.2.1 Classification properties

The BIM object shall include the classification properties detailed in Table NZ10A (see also the Open BIM Object standard, Clause 4.6.1). The properties shall be completed and grouped in the OBOS_Classification property set.

Property Description Data Type  Example Type/
 CBICode The value shall be completed with a numeric value of the appropriate Coordinated Building Interchange (CBI) classification code.
Character 3821 Type
 CBITitle The value shall be completed with CBI classification description for the chosen CBI code. Character
Timber Framing
 CBIVersion The published version of CBI used.
Character  2016 Type
 Table NZ10A – OBOS_Classification additional properties
Note 3: The BIM authoring system used may include hard-coded properties that can be used in place of these properties.
Note 4: For layered or composite objects, use the CBI code of the primary structural component.