|modifications||attributes RelatedBuildings definition||Changed from set[1:?] of IfcSpatialStructureElement to set[1:?] of IfcSpatialElement|
The IfcRelServicesBuildings is an objectified relationship that defines the relationship between a system and the sites, buildings, storeys, spaces, or spatial zones, it serves. Examples of systems are:
NOTE The name IfcRelServicesBuildings is a known anomaly, as the relationship is not restricted to buildings anymore.
HISTORY New entity in IFC1.0.
|1||GlobalId||IfcGloballyUniqueId||Assignment of a globally unique identifier within the entire software world.|
|2||OwnerHistory||OPTIONAL IfcOwnerHistory||Assignment of the information about the current ownership of that object, including owning actor, application, local identification and information captured about the recent changes of the object, |
> NOTE only the last modification in stored - either as addition, deletion or modification.
> IFC4 CHANGE The attribute has been changed to be OPTIONAL.
|3||Name||OPTIONAL IfcLabel||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.|
|4||Description||OPTIONAL IfcText||Optional description, provided for exchanging informative comments.|
|5||RelatingSystem||IfcSystem||System that services the Buildings.|
|6||RelatedBuildings||SET [1:?] OF IfcSpatialElement||Spatial structure elements (including site, building, storeys) that are serviced by the system.|
> IFC2x CHANGE The data type has been changed from IfcBuilding to IfcSpatialStructureElement with upward compatibility for file based exchange.
> IFC4 CHANGE The data type has been changed from IfcSpatialStructureElement to IfcSpatialElement with upward compatibility for file based exchange.
IfcRoot assigns the globally unique ID. In addition it may provide for a name and a description about the concept.
Ownership, history, and merge state is captured using IfcOwnerHistory.
ENTITY IfcRelServicesBuildings SUBTYPE OF (IfcRelConnects); RelatingSystem : IfcSystem; RelatedBuildings : SET [1:?] OF IfcSpatialElement; END_ENTITY;