5.1.3.26 IfcRelAssignsToProcess
5.1.3.26.1 Semantic definition
The objectified relationship IfcRelAssignsToProcess handles the assignment of one or many objects to a process or activity. An object can be a product that is the item the process operates on. Processes and activities can operate on things other than products, and can operate in ways other than input and output.
The inherited attribute RelatedObjects gives the references to the objects, or object type, which the process operates on. The RelatingProcess is the process or process type, that operates on the object. The operation types are captured in the inherited attribute Name.
5.1.3.26.2 Entity inheritance
5.1.3.26.3 Attributes
# | Attribute | Type | Description |
---|---|---|---|
IfcRoot (4) | |||
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, |
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. |
IfcRelAssigns (2) | |||
5 | RelatedObjects | SET [1:?] OF IfcObjectDefinition |
Related objects, which are assigned to a single object. The type of the single (or relating) object is defined in the subtypes of IfcRelAssigns. |
6 | RelatedObjectsType | OPTIONAL IfcStrippedOptional |
Particular type of the assignment relationship. It can constrain the applicable object types, used within the role of RelatedObjects. |
Click to show 6 hidden inherited attributes Click to hide 6 inherited attributes | |||
IfcRelAssignsToProcess (2) | |||
7 | RelatingProcess | IfcProcessSelect |
Reference to the process to which the objects are assigned to. |
8 | QuantityInProcess | OPTIONAL IfcMeasureWithUnit |
Quantity of the object specific for the operation by this process. |
5.1.3.26.4 Formal propositions
Name | Description |
---|---|
NoSelfReference |
The instance to with the relation points as provided by RelatingProcess shall not be contained in the set of RelatedObjects. |
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5.1.3.26.5 Concept usage
Concept | Usage | Description | |
---|---|---|---|
IfcRoot (2) | |||
Revision Control | General |
Ownership, history, and merge state is captured using IfcOwnerHistory. |
|
Software Identity | General |
IfcRoot assigns the globally unique ID. In addition it may provide for a name and a description about the concept. |
|
Click to show 2 hidden inherited concepts Click to hide 2 inherited concepts |
5.1.3.26.6 Formal representation
ENTITY IfcRelAssignsToProcess
SUBTYPE OF (IfcRelAssigns);
RelatingProcess : IfcProcessSelect;
QuantityInProcess : OPTIONAL IfcMeasureWithUnit;
WHERE
NoSelfReference : SIZEOF(QUERY(Temp <* SELF\IfcRelAssigns.RelatedObjects | RelatingProcess :=: Temp)) = 0;
END_ENTITY;