IfcWorkTime

Item	SPF	XML	Change	Description
4.0.0.0
IfcWorkTime			ADDED

Semantic definitions at the entity

Entity definition

IfcWorkTime defines time periods that are used by IfcWorkCalendar for either describing working times or non-working exception times. Besides start and finish dates, a set of time periods can be given by various types of recurrence patterns.

A work time should have a meaningful name that describes the time periods (for example, working week, holiday name). Non-recurring time periods should have a start date (IfcWorkTime.Start) and a finish date (IfcWorkTime.Finish). In that case it is assumed that the time period begins at 0:00 on the start date and ends at 24:00 on the finish date.

The start and finish date is optional if a recurrence pattern is given (IfcWorkTime.RecurrencePattern). They then restrict never-ending recurrence patterns.

HISTORY New entity in IFC4.

Attribute definitions

#	Attribute	Type	Cardinality	Description	G
4	RecurrencePattern	IfcRecurrencePattern	?	Recurrence pattern that defines a time period, which, if given, is valid within the time period defined by IfcWorkTime.Start and IfcWorkTime.Finish.	X
5	Start	IfcDate	?	Start date of the work time (0:00), that might be further restricted by a recurrence pattern.	X
6	Finish	IfcDate	?	End date of the work time (24:00), that might be further restricted by a recurrence pattern.	X

Inherited definitions from supertypes

Entity inheritance

Attribute inheritance

#	Attribute	Type	Cardinality	Description	G
IfcSchedulingTime
1	Name	IfcLabel	?	Optional name for the time definition.	X
2	DataOrigin	IfcDataOriginEnum	?	Specifies the origin of the scheduling time entity. It currently differentiates between predicted, simulated, measured, and user defined values.	X
3	UserDefinedDataOrigin	IfcLabel	?	Value of the data origin if DataOrigin attribute is USERDEFINED.	X
IfcWorkTime
4	RecurrencePattern	IfcRecurrencePattern	?	Recurrence pattern that defines a time period, which, if given, is valid within the time period defined by IfcWorkTime.Start and IfcWorkTime.Finish.	X
5	Start	IfcDate	?	Start date of the work time (0:00), that might be further restricted by a recurrence pattern.	X
6	Finish	IfcDate	?	End date of the work time (24:00), that might be further restricted by a recurrence pattern.	X

Formal representations

XML Specification

 <xs:element name="IfcWorkTime" type="ifc:IfcWorkTime" substitutionGroup="ifc:IfcSchedulingTime" nillable="true"/>

 <xs:complexType name="IfcWorkTime">

  <xs:complexContent>

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

    <xs:sequence>

     <xs:element name="RecurrencePattern" type="ifc:IfcRecurrencePattern" nillable="true" minOccurs="0"/>

    </xs:sequence>

    <xs:attribute name="Start" type="ifc:IfcDate" use="optional"/>

    <xs:attribute name="Finish" type="ifc:IfcDate" use="optional"/>

   </xs:extension>

  </xs:complexContent>

 </xs:complexType>

EXPRESS Specification


ENTITY IfcWorkTime

 SUBTYPE OF (IfcSchedulingTime);

  RecurrencePattern : OPTIONAL IfcRecurrencePattern;

  Start : OPTIONAL IfcDate;

  Finish : OPTIONAL IfcDate;

END_ENTITY;

 EXPRESS-G diagram

	Arbeitszeit
	Work Time
	Période de travail