#### 7.1.3.2 IfcConstructionEquipmentResourceType

| Équipement type utilisé pour la construction
| Baugerät - Ressource -Typ

The resource type IfcConstructionEquipmentType defines commonly shared information for occurrences of construction equipment resources. The set of shared information may include:

- common productivities
- common cost rates
- common properties within shared property sets

It is used to define a construction equipment resource specification (the specific resource information that is common to all occurrences of that resource). Resource types may be exchanged without being already assigned to occurrences.

Occurrences of the IfcConstructionEquipmentResourceType are represented by instances of IfcConstructionEquipmentResource.

> HISTORY New entity in IFC4.

Assignment use definition

In addition to assignments specified at the base class IfcConstructionResourceType, a construction equipment resource type may have assignments of its own using IfcRelAssignsToResource where RelatingResource refers to the IfcConstructionEquipmentResourceType and RelatedObjects contains one or more IfcTypeProduct subtypes. Such relationship indicates the type of equipment to be used as input, which is instantiated as an occurrence assigned for each resource occurrence. There may be multiple chains of production where such product type may have its own task and resource types assigned indicating how to assemble such equipment.

XSD Specification:

<xs:element name="IfcConstructionEquipmentResourceType" type="ifc:IfcConstructionEquipmentResourceType" substitutionGroup="ifc:IfcConstructionResourceType" nillable="true"/>
<xs:complexType name="IfcConstructionEquipmentResourceType">
<xs:complexContent>
<xs:extension base="ifc:IfcConstructionResourceType">
<xs:attribute name="PredefinedType" type="ifc:IfcConstructionEquipmentResourceTypeEnum" use="optional"/>
</xs:extension>
</xs:complexContent>
</xs:complexType>

EXPRESS Specification:

ENTITY IfcConstructionEquipmentResourceType

| SUBTYPE OF (IfcConstructionResourceType);

PredefinedType | : | IfcConstructionEquipmentResourceTypeEnum;

| WHERE

CorrectPredefinedType | : | (PredefinedType <> IfcConstructionEquipmentResourceTypeEnum.USERDEFINED) OR ((PredefinedType = IfcConstructionEquipmentResourceTypeEnum.USERDEFINED) AND EXISTS(SELF\IfcTypeResource.ResourceType));

END_ENTITY;

Attribute Definitions:

PredefinedType | : | Defines types of construction equipment resources.

Inheritance Graph:

ENTITY IfcConstructionEquipmentResourceType

| 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 IfcTypeObject

ApplicableOccurrence | : | OPTIONAL IfcStrippedOptional;
HasPropertySets | : | OPTIONAL SET [1:?] OF IfcPropertySetDefinition;

| INVERSE

Types | : | SET [0:1] OF IfcRelDefinesByType FOR RelatingType;

| ENTITY IfcTypeResource

Identification | : | OPTIONAL IfcStrippedOptional;
LongDescription | : | OPTIONAL IfcStrippedOptional;
ResourceType | : | OPTIONAL IfcStrippedOptional;

| INVERSE

ResourceOf | : | SET OF IfcRelAssignsToResource FOR RelatingResource;

| ENTITY IfcConstructionResourceType

BaseCosts | : | OPTIONAL LIST [1:?] OF IfcAppliedValue;
BaseQuantity | : | OPTIONAL IfcStrippedOptional;

| ENTITY IfcConstructionEquipmentResourceType

PredefinedType | : | IfcConstructionEquipmentResourceTypeEnum;

END_ENTITY;

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