IfcActionRequest

Item	XML	Change	Description
IFC2x3 to IFC4
IfcActionRequest		MOVED	Schema changed from IFCFACILITIESMGMTDOMAIN to IFCSHAREDMGMTELEMENTS.
OwnerHistory		MODIFIED	Instantiation changed to OPTIONAL.
Identification	X	MODIFIED	Name changed from RequestID to Identification. Instantiation changed to OPTIONAL.
PredefinedType		ADDED
Status		ADDED
LongDescription		ADDED

#	Attribute	Type	Cardinality	Description	C
7	PredefinedType	IfcActionRequestTypeEnum	[0:1]	Identifies the predefined type of sources through which a request can be made.	X
8	Status	IfcLabel	[0:1]	The status currently assigned to the request. Possible values include: Hold: wait to see if further requests are received before deciding on action NoAction: no action is required on this request Schedule: plan action to take place as part of maintenance or other task planning/scheduling Urgent: take action immediately	X
9	LongDescription	IfcText	[0:1]	Detailed description of the permit.	X

Inherited definitions from supertypes

Entity inheritance

Attribute inheritance

#	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
IfcObjectDefinition
	HasAssignments	IfcRelAssigns @RelatedObjects	S[0:?]	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.	X
	Nests	IfcRelNests @RelatedObjects	S[0:1]	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).	X
	IsNestedBy	IfcRelNests @RelatingObject	S[0:?]	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).	X
	HasContext	IfcRelDeclares @RelatedDefinitions	S[0:1]	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.	X
	IsDecomposedBy	IfcRelAggregates @RelatingObject	S[0:?]	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).	X
	Decomposes	IfcRelAggregates @RelatedObjects	S[0:1]	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).	X
	HasAssociations	IfcRelAssociates @RelatedObjects	S[0:?]	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.	X
IfcObject
5	ObjectType	IfcLabel	[0:1]	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.	X
	IsDeclaredBy	IfcRelDefinesByObject @RelatedObjects	S[0:1]	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.	X
	Declares	IfcRelDefinesByObject @RelatingObject	S[0:?]	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.	X
	IsTypedBy	IfcRelDefinesByType @RelatedObjects	S[0:1]	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.	X
	IsDefinedBy	IfcRelDefinesByProperties @RelatedObjects	S[0:?]	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.	X
IfcControl
6	Identification	IfcIdentifier	[0:1]	An identifying designation given to a control It is the identifier at the occurrence level.	X
	Controls	IfcRelAssignsToControl @RelatingControl	S[0:?]	Reference to the relationship that associates the control to the object(s) being controlled.	X
IfcActionRequest
7	PredefinedType	IfcActionRequestTypeEnum	[0:1]	Identifies the predefined type of sources through which a request can be made.	X
8	Status	IfcLabel	[0:1]	The status currently assigned to the request. Possible values include: Hold: wait to see if further requests are received before deciding on action NoAction: no action is required on this request Schedule: plan action to take place as part of maintenance or other task planning/scheduling Urgent: take action immediately	X
9	LongDescription	IfcText	[0:1]	Detailed description of the permit.	X

Definitions applying to Common Use Definitions

Instance diagram

Concept usage

Property Sets for Objects

The Property Sets for Objects concept applies to this entity as shown in Table 243.

PredefinedType

Name

Properties

Pset_ActionRequest

Single Value

Name	Value
RequestSourceLabel	IfcLabel
RequestComments	IfcText

Table 243 — IfcActionRequest Property Sets for Objects

Approval Association

The Approval Association concept applies to this entity.

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 IfcActionRequest. 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.

Aggregation

The Aggregation concept applies to this entity as shown in Table 244.

PredefinedType	RelatedObjects	Description
	IfcCostSchedule	Cost schedules may indicate the costs projected or incurred for the request.

Table 244 — IfcActionRequest Aggregation

As shown in Figure 267, an IfcActionRequest may be aggregated into components.

Figure 267 — Action request composition

Object Nesting

The Object Nesting concept applies to this entity as shown in Table 245.

Type	Description
IfcActionRequest	A request may be nested into follow-up requests, in order of issue

Table 245 — IfcActionRequest Object Nesting

Control Assignment

The Control Assignment concept applies to this entity.

As shown in Figure 268, an IfcActionRequest may be assigned to the following entities using relationships as indicated:

IfcActor (IfcRelAssignsToActor): Person or organization issuing the request such as a tenant or owner.

The IfcActionRequest may have assignments of its own using the IfcRelAssignsToControl relationship where RelatingControl refers to the IfcActionRequest and RelatedObjects contains one or more objects of the following types:

IfcActor: Person or organization(s) fulfilling the request such as a facilities manager or contractor.

Figure 268 — Action request assignment

Concept inheritance

#	Concept	Model View
IfcRoot
	Software Identity	Common Use Definitions
	Revision Control	Common Use Definitions
IfcObject
	Object Occurrence Predefined Type	Common Use Definitions
IfcControl
IfcActionRequest
	Property Sets for Objects	Common Use Definitions
	Approval Association	Common Use Definitions
	Aggregation	Common Use Definitions
	Object Nesting	Common Use Definitions
	Control Assignment	Common Use Definitions

Formal representations

XSD Specification

 <xs:element name="IfcActionRequest" type="ifc:IfcActionRequest" substitutionGroup="ifc:IfcControl" nillable="true"/>

 <xs:complexType name="IfcActionRequest">

  <xs:complexContent>

   <xs:extension base="ifc:IfcControl">

    <xs:attribute name="PredefinedType" type="ifc:IfcActionRequestTypeEnum" use="optional"/>

    <xs:attribute name="Status" type="ifc:IfcLabel" use="optional"/>

    <xs:attribute name="LongDescription" type="ifc:IfcText" use="optional"/>

   </xs:extension>

  </xs:complexContent>

 </xs:complexType>

EXPRESS Specification


ENTITY IfcActionRequest

 SUBTYPE OF (IfcControl);

  PredefinedType : OPTIONAL IfcActionRequestTypeEnum;

  Status : OPTIONAL IfcLabel;

  LongDescription : OPTIONAL IfcText;

END_ENTITY;

 EXPRESS-G diagram

Link to this page

	Tätigkeitsanfrage
	Action Request
	Requête d'action

IfcActionRequest

Semantic definitions at the entity

Inherited definitions from supertypes

Definitions applying to Common Use Definitions

Formal representations