8.5.3.14 IfcWorkTime

8.5.3.14.1 Semantic 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.

8.5.3.14.2 Entity inheritance

1. • IfcSchedulingTime
2. • IfcWorkTime
   • IfcEventTime
   • IfcLagTime
   • IfcResourceTime
   • IfcTaskTime

8.5.3.14.3 Attributes

#	Attribute	Type	Description
IfcSchedulingTime (3)
1	Name	OPTIONAL IfcLabel	Optional name for the time definition.
2	DataOrigin	OPTIONAL IfcDataOriginEnum	Specifies the origin of the scheduling time entity. It currently differentiates between predicted, simulated, measured, and user defined values.
3	UserDefinedDataOrigin	OPTIONAL IfcLabel	Value of the data origin if DataOrigin attribute is USERDEFINED.
Click to show 3 hidden inherited attributes Click to hide 3 inherited attributes
IfcWorkTime (3)
4	RecurrencePattern	OPTIONAL IfcRecurrencePattern	Recurrence pattern that defines a time period, which, if given, is valid within the time period defined by IfcWorkTime.Start and IfcWorkTime.Finish.
5	StartDate	OPTIONAL IfcDate	No description available.
6	FinishDate	OPTIONAL IfcDate	No description available.

8.5.3.14.4 Examples

• 

  Construction Scheduling Task

8.5.3.14.5 Formal representation

ENTITY IfcWorkTime
 SUBTYPE OF (IfcSchedulingTime);
	RecurrencePattern : OPTIONAL IfcRecurrencePattern;
	StartDate : OPTIONAL IfcDate;
	FinishDate : OPTIONAL IfcDate;
END_ENTITY;

8.5.3.14.6 References

• IfcSchedulingTime
• IfcWorkCalendar