7.3.3.11 IfcLaborResource

Ressource en main d'œuvre
Arbeit - Ressource

An IfcLaborResource is used in construction with particular skills or crafts required to perform certain types of construction or management related work.

HISTORY  New entity in IFC2.0.
IFC4 CHANGE  The attribute Skillset has been deleted; use LongDescription to describe the skillset.

The purpose of an IfcLaborResource is to identify a skillset that may be required or used. The skillset identified may be (for instance) charge-hand, foreman, labourer, plumbers mate etc. and provides a designation of a particular level of skill. It can be used to identify the generic type of labour resource that is required for a purpose without having to be specific about the actor (person or organization) providing the resource occurrence. It may be particularly useful when creating an overall plan for a process or processes. For instance, within maintenance or work planning there may be a known task that needs to be done which is planned to require a 'chargehand pipe fitter'. There may be several such labour resources available and so the need to identify which will be used is not necessary at the planning stage.

At a later stage, individual actors can be determined for the labour resources. This is achieved through specifying the actor through IfcActor. The actor is then identified as the labour resource occurrence through the IfcRelAssignsToResource.RelatedResource attribute. The IfcLaborResource provides the IfcRelAssignsToResource.RelatingResource attribute.


Common Use Definitions

The following concepts are inherited at supertypes:

 Instance diagram

Object Typing

The Object Typing concept applies to this entity as shown in Table 307.
Type
IfcLaborResourceType
IfcConstructionResourceType

Table 307 — IfcLaborResource Object Typing



Quantity Sets

The Quantity Sets concept applies to this entity as shown in Table 308.
Name
Qto_LaborResourceBaseQuantities

Table 308 — IfcLaborResource Quantity Sets



Resource Assignment

The Resource Assignment concept applies to this entity as shown in Table 309.
TypeDescription
IfcActorIndicates specific people manifesting the resource such as laborers.

Table 309 — IfcLaborResource Resource Assignment



Resource Cost

The Resource Cost concept applies to this entity as shown in Table 310.
CostTypeCostNameValueTypeDescription
IfcCostValueStandardIfcMonetaryMeasureWages incurred for work during standard hours.
IfcCostValueOvertimeIfcMonetaryMeasureWages incurred for work during overtime hours.

Table 310 — IfcLaborResource Resource Cost



Resource Quantity

The Resource Quantity concept applies to this entity as shown in Table 311.
QuantityTypeQuantityNameDescription
IfcQuantityTimeLaborQuantity of labor, typically per hour.

Table 311 — IfcLaborResource Resource Quantity




XSD Specification:

 <xs:element name="IfcLaborResource" type="ifc:IfcLaborResource" substitutionGroup="ifc:IfcConstructionResource" nillable="true"/>
 <xs:complexType name="IfcLaborResource">
  <xs:complexContent>
   <xs:extension base="ifc:IfcConstructionResource">
    <xs:attribute name="PredefinedType" type="ifc:IfcLaborResourceTypeEnum" use="optional"/>
   </xs:extension>
  </xs:complexContent>
 </xs:complexType>

EXPRESS Specification:

ENTITY IfcLaborResource
SUBTYPE OF IfcConstructionResource;
PredefinedType : OPTIONAL IfcLaborResourceTypeEnum;
WHERE
CorrectPredefinedType : NOT(EXISTS(PredefinedType)) OR (PredefinedType <> IfcLaborResourceTypeEnum.USERDEFINED) OR ((PredefinedType = IfcLaborResourceTypeEnum.USERDEFINED) AND EXISTS (SELF\IfcObject.ObjectType));
END_ENTITY;

Link to EXPRESS-G diagram EXPRESS-G diagram

Attribute Definitions:

PredefinedType : Defines types of labour resources.
IFC4 New attribute.

Inheritance Graph:

ENTITY IfcLaborResource
ENTITY IfcRoot
GlobalId : IfcGloballyUniqueId;
OwnerHistory : OPTIONAL IfcOwnerHistory;
Name : OPTIONAL IfcLabel;
Description : OPTIONAL IfcText;
ENTITY IfcObjectDefinition
INVERSE
HasAssignments : SET OF IfcRelAssigns FOR RelatedObjects;
Nests : SET [0:1] OF IfcRelNests FOR RelatedObjects;
IsNestedBy : SET OF IfcRelNests FOR RelatingObject;
HasContext : SET [0:1] OF IfcRelDeclares FOR RelatedDefinitions;
IsDecomposedBy : SET OF IfcRelAggregates FOR RelatingObject;
Decomposes : SET [0:1] OF IfcRelAggregates FOR RelatedObjects;
HasAssociations : SET OF IfcRelAssociates FOR RelatedObjects;
ENTITY IfcObject
ObjectType : OPTIONAL IfcLabel;
INVERSE
IsDeclaredBy : SET [0:1] OF IfcRelDefinesByObject FOR RelatedObjects;
Declares : SET OF IfcRelDefinesByObject FOR RelatingObject;
IsTypedBy : SET [0:1] OF IfcRelDefinesByType FOR RelatedObjects;
IsDefinedBy : SET OF IfcRelDefinesByProperties FOR RelatedObjects;
ENTITY IfcResource
Identification : OPTIONAL IfcIdentifier;
LongDescription : OPTIONAL IfcText;
INVERSE
ResourceOf : SET OF IfcRelAssignsToResource FOR RelatingResource;
ENTITY IfcConstructionResource
Usage : OPTIONAL IfcResourceTime;
BaseCosts : OPTIONAL LIST [1:?] OF IfcAppliedValue;
BaseQuantity : OPTIONAL IfcPhysicalQuantity;
ENTITY IfcLaborResource
PredefinedType : OPTIONAL IfcLaborResourceTypeEnum;
END_ENTITY;

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