Class

Group

Code

IfcGroup

Class type

Class

URI

https://identifier.buildingsmart.org/uri/buildingsmart/ifc/4.3/class/IfcGroup

Definition

Group is an generalization of any arbitrary group. A group is a logical collection of objects. It does not have its own position, nor can it hold its own shape representation. Therefore a group is an aggregation under some non-geometrical / topological grouping aspects.

Dictionary

IFC

Dictionary version

4.3

Dictionary release date

2024-01-11

Dictionary license

Dictionary state

Preview

Parent class

Status

Active

VersionDateUtc

2024-01-12

Uid

e991a118-741e-4598-a023-d9ad58f0f717

Class properties
Property set: Attributes

Optional description, provided for exchanging informative comments.

Assignment of a globally unique identifier within the entire software world.

Optional name for use by the participating software systems or users. For some subtypes of IfcRoot the insertion of the Name attribute may be required. This would be enforced by a where rule.

The type denotes a particular type that indicates the object further. The use has to be established at the level of instantiable subtypes. In particular it holds the user defined type, if the enumeration of the attribute PredefinedType is set to USERDEFINED or when the concrete entity instantiated does not have a PredefinedType attribute. The latter is the case in some exceptional leaf classes and when instantiating IfcBuiltElement directly.

Property set: Pset_Risk

An indication or link to any associated activity or process that may trigger the hazard. If used directly on an annotation or semantic object. for an alternative see group use encoding template

An indication or link to any associated location or space that may trigger the hazard. If used directly on an annotation or semantic object. for an alternative see group use encoding template

An indication or link to any associated product or material that may trigger the hazard. If used directly on an annotation or semantic object. for an alternative see group use encoding template

Identifies the consequence of the hazard given the planned mitigation.

Identifies the likelihood of the hazard given the planned mitigation.

Identifies the significance of the risk given the mitigation of likelihood and consequence.

Child classes