6.5.3.5 IfcProjectOrder

6.5.3.5.1 Semantic definition

A project order is a directive to purchase products and/or perform work, such as for construction or facilities management.

Project orders are typically formal contracts between two organizations, where cost and time information may be rigid or flexible according to contained schedule types and constraints.

6.5.3.5.2 Entity inheritance

6.5.3.5.3 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, 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.
IfcObjectDefinition (7)
	HasAssignments	SET [0:?] OF IfcRelAssigns FOR RelatedObjects	Reference to the relationship objects, that assign (by an association relationship) other subtypes of IfcObject to this object instance. Examples are the association to products, processes, controls, resources or groups.
	Nests	SET [0:1] OF IfcRelNests FOR RelatedObjects	References to the decomposition relationship being a nesting. It determines that this object definition is a part within an ordered whole/part decomposition relationship. An object occurrence or type can only be part of a single decomposition (to allow hierarchical strutures only). IFC4-CHANGE The inverse attribute datatype has been added and separated from Decomposes defined at IfcObjectDefinition.
	IsNestedBy	SET [0:?] OF IfcRelNests FOR RelatingObject	References to the decomposition relationship being a nesting. It determines that this object definition is the whole within an ordered whole/part decomposition relationship. An object or object type can be nested by several other objects (occurrences or types). IFC4-CHANGE The inverse attribute datatype has been added and separated from IsDecomposedBy defined at IfcObjectDefinition.
	HasContext	SET [0:1] OF IfcRelDeclares FOR RelatedDefinitions	References to the context providing context information such as project unit or representation context. It should only be asserted for the uppermost non-spatial object. IFC4-CHANGE The inverse attribute datatype has been added.
	IsDecomposedBy	SET [0:?] OF IfcRelAggregates FOR RelatingObject	References to the decomposition relationship being an aggregation. It determines that this object definition is whole within an unordered whole/part decomposition relationship. An object definitions can be aggregated by several other objects (occurrences or parts). IFC4-CHANGE The inverse attribute datatype has been changed from the supertype IfcRelDecomposes to subtype IfcRelAggregates.
	Decomposes	SET [0:1] OF IfcRelAggregates FOR RelatedObjects	References to the decomposition relationship being an aggregation. It determines that this object definition is a part within an unordered whole/part decomposition relationship. An object definitions can only be part of a single decomposition (to allow hierarchical strutures only). IFC4-CHANGE The inverse attribute datatype has been changed from the supertype IfcRelDecomposes to subtype IfcRelAggregates.
	HasAssociations	SET [0:?] OF IfcRelAssociates FOR RelatedObjects	Reference to the relationship objects, that associates external references or other resource definitions to the object.. Examples are the association to library, documentation or classification.
IfcObject (5)
5	ObjectType	OPTIONAL IfcLabel	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.
	IsDeclaredBy	SET [0:1] OF IfcRelDefinesByObject FOR RelatedObjects	Link to the relationship object pointing to the declaring object that provides the object definitions for this object occurrence. The declaring object has to be part of an object type decomposition. The associated IfcObject, or its subtypes, contains the specific information (as part of a type, or style, definition), that is common to all reflected instances of the declaring IfcObject, or its subtypes. IFC4-CHANGE New inverse relationship, change made with upward compatibility for file based exchange.
	Declares	SET [0:?] OF IfcRelDefinesByObject FOR RelatingObject	Link to the relationship object pointing to the reflected object(s) that receives the object definitions. The reflected object has to be part of an object occurrence decomposition. The associated IfcObject, or its subtypes, provides the specific information (as part of a type, or style, definition), that is common to all reflected instances of the declaring IfcObject, or its subtypes. IFC4-CHANGE New inverse relationship, change made with upward compatibility for file based exchange.
	IsTypedBy	SET [0:1] OF IfcRelDefinesByType FOR RelatedObjects	Set of relationships to the object type that provides the type definitions for this object occurrence. The then associated IfcTypeObject, or its subtypes, contains the specific information (or type, or style), that is common to all instances of IfcObject, or its subtypes, referring to the same type. IFC4-CHANGE New inverse relationship, the link to IfcRelDefinesByType had previously be included in the inverse relationship IfcRelDefines. Change made with upward compatibility for file based exchange.
	IsDefinedBy	SET [0:?] OF IfcRelDefinesByProperties FOR RelatedObjects	Set of relationships to property set definitions attached to this object. Those statically or dynamically defined properties contain alphanumeric information content that further defines the object. IFC4-CHANGE The data type has been changed from IfcRelDefines to IfcRelDefinesByProperties with upward compatibility for file based exchange.
IfcControl (2)
6	Identification	OPTIONAL IfcIdentifier	An identifying designation given to a control It is the identifier at the occurrence level. IFC4-CHANGE Attribute unified by promoting from various subtypes of IfcControl.
	Controls	SET [0:?] OF IfcRelAssignsToControl FOR RelatingControl	Reference to the relationship that associates the control to the object(s) being controlled.
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IfcProjectOrder (3)
7	PredefinedType	OPTIONAL IfcProjectOrderTypeEnum	Predefined generic type for a project order that is specified in an enumeration. There may be a property set given specifically for the predefined types. IFC4-CHANGE The attribute has been made optional.
8	Status	OPTIONAL IfcLabel	The current status of a project order.Examples of status values that might be used for a project order status include: * PLANNED * REQUESTED * APPROVED * ISSUED * STARTED * DELAYED * DONE
9	LongDescription	OPTIONAL IfcText	A detailed description of the project order describing the work to be completed.

Table 6.5.3.5.C

6.5.3.5.4 Property sets

Pset_ProjectOrderChangeOrder CHANGEORDER
- ReasonForChange
- BudgetSource
Pset_ProjectOrderMaintenanceWorkOrder MAINTENANCEWORKORDER
- ProductDescription
- WorkTypeRequested
- ContractualType
- IfNotAccomplished
- MaintenaceType
- FaultPriorityType
- LocationPriorityType
- ScheduledFrequency
Pset_ProjectOrderMoveOrder MOVEORDER
- SpecialInstructions
Pset_ProjectOrderPurchaseOrder PURCHASEORDER
- IsFOB
- ShipMethod
Pset_ProjectOrderWorkOrder WORKORDER
- ProductDescription
- WorkTypeRequested
- ContractualType
- IfNotAccomplished

6.5.3.5.5 Concept usage

Composition Use Definition — Figure 6.5.3.5.A — Project order composition

Assignment Use Definition — Figure 6.5.3.5.A — Project order composition

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.
IfcObjectDefinition (9)
Aggregation	General	No description available.
Approval Association	General	No description available.
Classification Association	General	Any object occurrence or object type can have a reference to a specific classification reference, i.e. to a particular facet within a classification system.
Constraint Association	General	No description available.
Document Association	General	No description available.
Library Association	General	No description available.
Material Association	General	No description available.
Material Single	General	No description available.
Nesting	General	No description available.
IfcObject (5)
Assignment to Group	General	No description available.
Object Predefined Type	General	No description available.
Object Typing	General	Any object occurrence can be typed by being assigned to a common object type utilizing this concept. A particular rule, restricting the applicable subtypes of IfcTypeObject that can be assigned, is introduced by overriding this concept at the level of subtypes of IfcObject. This concept can be applied to the following resources: IfcTypeObject
Object User Identity	General	An attribute Name and optionally Description can be used for all subypes of IfcObject. For those subtypes, that have an object type definition, such as ifcBeam - IfcBeamType, the common Name and optionally Description is associated with the object type.
Property Sets with Override	General	Any object occurrence can hold property sets, either directly at the object occurrence as element specific property sets, or at the object type, as type property sets. In this case, the properties that are provided to the object occurrence are the combinations of element specific and type properties. In case, that the same property (within the same property set, is defined both, in occurrence and type properties, the property value of the occurrence property overrides the property value of the type property.
IfcControl (1)
Control Assignment	General	Controls have assignments from products, processes, or other objects by using the relationship object IfcRelAssignsToControl. This concept can be applied to the following resources: IfcObjectDefinition
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IfcProjectOrder (5)
Aggregation	General	This is a further elaboration on an inherited concept. As shown in Figure 160, an IfcProjectOrder may be aggregated into components. Figure 6.5.3.5.A — Project order composition
Approval Association	General	This is a further elaboration on an inherited concept. Approvals may be associated to indicate the status of acceptance or rejection using the IfcRelAssociatesApproval relationship where RelatingApproval refers to an IfcApproval and RelatedObjects contains the IfcProjectOrder. Approvals may be split into sub-approvals using IfcApprovalRelationship to track approval status separately for each party where RelatingApproval refers to the higher-level approval and RelatedApprovals contains one or more lower-level approvals. The hierarchy of approvals implies sequencing such that a higher-level approval is not executed until all of its lower-level approvals have been accepted.
Control Assignment	General	This is a further elaboration on an inherited concept. Figure 6.5.3.5.B illustrates IfcProjectOrder assignment relationships as indicated: IfcActor (IfcRelAssignsToActor): Organization issuing the order such as an owner or contractor. The IfcProjectOrder may have assignments of its own using the IfcRelAssignsToControl relationship where RelatingControl refers to the IfcProjectOrder and RelatedObjects contains one or more objects of the following types: IfcActor: Organization(s) contracted to fulfill the order, typically a single contractor, subcontractor, or supplier. Figure 6.5.3.5.B — Project order assignment This concept can be applied to the following resources: IfcActor IfcTask
Object Nesting	General	This concept can be applied to the following resources: IfcProjectOrder - May contain subordinate orders, particularly change orders indicating contract amendment in order of issue.
Property Sets for Objects	General	This concept can be applied to the following resources: Pset_ProjectOrderChangeOrder (only applies to `CHANGEORDER)` Pset_ProjectOrderMaintenanceWorkOrder (only applies to `MAINTENANCEWORKORDER)` Pset_ProjectOrderMoveOrder (only applies to `MOVEORDER)` Pset_ProjectOrderPurchaseOrder (only applies to `PURCHASEORDER)` Pset_ProjectOrderWorkOrder (only applies to `WORKORDER)`

6.5.3.5.6 Formal representation

ENTITY IfcProjectOrder
 SUBTYPE OF (IfcControl);
	PredefinedType : OPTIONAL IfcProjectOrderTypeEnum;
	Status : OPTIONAL IfcLabel;
	LongDescription : OPTIONAL IfcText;
END_ENTITY;

6.5.3.5.7 References

IfcControl