对象化关系IfcRelAssignsToProcess处理将一个或多个对象分配给进程或活动的操作。对象可以是流程操作的项目的产品。过程和活动可以对产品以外的事物进行操作，并且可以以输入和输出以外的方式进行操作。
例如，在估算或计划过程中，通常会定义描述设计任务（生成文档）、采购任务（生成建筑材料）、计划任务（生成流程）等的流程。此外，流程在某些方面的操作方式可能包括“安装”、“完成”、“运输”，“移除”等方式被描述为操作类型。
继承的属性RelatedObjects提供对进程操作的对象或对象类型的引用。relationingprocess是操作对象的进程或进程类型。操作类型在继承的属性名中捕获。
注意，关于Name属性的有效值和可识别值的协议是视图定义和实现者协议的一部分。
在IFC1.5中增加的新实体。从IFC2x中ifcrelprocessionson重命名。
IFC4更改数据类型RelatingProcess已扩展到同时包含IfcTypeProcess
| # | Attribute | Type | Cardinality | Description | C |
|---|---|---|---|---|---|
| IfcRoot | |||||
| 1 | GlobalId | IfcGloballyUniqueId | [1:1] | Assignment of a globally unique identifier within the entire software world. | X |
| 2 | OwnerHistory | IfcOwnerHistory | [0:1] | 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. |
X |
| 3 | Name | IfcLabel | [0:1] | 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. | X |
| 4 | Description | IfcText | [0:1] | Optional description, provided for exchanging informative comments. | X |
| IfcRelationship | |||||
| IfcRelAssigns | |||||
| 5 | RelatedObjects | IfcObjectDefinition | S[1:?] | Related objects, which are assigned to a single object. The type of the single (or relating) object is defined in the subtypes of IfcRelAssigns. | X |
| 6 | RelatedObjectsType | IfcObjectTypeEnum | [0:1] | Particular type of the assignment relationship. It can constrain the applicable object types, used within the role of RelatedObjects. | X |
| IfcRelAssignsToProcess | |||||
| 7 | RelatingProcess | IfcProcessSelect | [1:1] | Reference to the process to which the objects are assigned to. | X |
| 8 | QuantityInProcess | IfcMeasureWithUnit | [0:1] | Quantity of the object specific for the operation by this process. | X |