#### 5.3.3.3 IfcWorkControl

| Contrôle des travaux
| Arbeitskontrolle

An IfcWorkControl is an abstract supertype which captures information that is common to both IfcWorkPlan and IfcWorkSchedule.

> HISTORY New entity in IFC2x

> CHANGE IFC4 Corrected assignment of resources to work control in documentation. Assignment of tasks to work control updated based on changes of task time definitions and the introduction of a summary task. Identifier has been renamed (now Identification) and promoted to supertype IfcControl

A work control may have resources assigned to it. This is handled by the IfcRelAssignsToControl relationship. A work control should also define a context that gives further information about its usage. If no special context information is required then the IfcProject instance as a global context should be used instead. An explicit link between the work control and the IfcProject via IfcRelDeclares should then be provided.

The attribute IfcWorkControl.Purpose is used to define the purpose of either a work schedule or a work plan. In the case of IfcWorkPlan, the purpose attribute can be used to determine if the work plan is for cost estimating, task scheduling or some other defined purpose.

XSD Specification:

<xs:element name="IfcWorkControl" type="ifc:IfcWorkControl" abstract="true" substitutionGroup="ifc:IfcControl" nillable="true"/>
<xs:complexType name="IfcWorkControl" abstract="true">
<xs:complexContent>
<xs:extension base="ifc:IfcControl">
<xs:attribute name="CreationDate" type="ifc:IfcDateTime" use="optional"/>
<xs:attribute name="StartTime" type="ifc:IfcDateTime" use="optional"/>
</xs:extension>
</xs:complexContent>
</xs:complexType>

EXPRESS Specification:

ENTITY IfcWorkControl

| ABSTRACT SUPERTYPE OF(IfcWorkPlan)

| SUBTYPE OF (IfcControl);

CreationDate | : | IfcDateTime;
Creators | : | OPTIONAL SET [1:?] OF IfcStrippedOptional;
Purpose | : | OPTIONAL IfcStrippedOptional;
Duration | : | OPTIONAL IfcStrippedOptional;
TotalFloat | : | OPTIONAL IfcStrippedOptional;
StartTime | : | IfcDateTime;
FinishTime | : | OPTIONAL IfcStrippedOptional;

END_ENTITY;

Attribute Definitions:

CreationDate | : | The date that the plan is created.
Creators | : | The authors of the work plan.
Purpose | : | A description of the purpose of the work schedule.
StartTime | : | The start time of the schedule.
FinishTime | : | The finish time of the schedule.

Inheritance Graph:

ENTITY IfcWorkControl

| 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 IfcStrippedOptional;

| 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 IfcControl

Identification | : | OPTIONAL IfcStrippedOptional;

| INVERSE

Controls | : | SET OF IfcRelAssignsToControl FOR RelatingControl;

| ENTITY IfcWorkControl

CreationDate | : | IfcDateTime;
Creators | : | OPTIONAL SET [1:?] OF IfcStrippedOptional;
Purpose | : | OPTIONAL IfcStrippedOptional;
Duration | : | OPTIONAL IfcStrippedOptional;
TotalFloat | : | OPTIONAL IfcStrippedOptional;
StartTime | : | IfcDateTime;
FinishTime | : | OPTIONAL IfcStrippedOptional;

END_ENTITY;

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