Specification of time-based mapping constraints.

Item Summary
Name	Type	Multiplicity	Description
description	property string	[0,1]
referenceTime	property VariableBindingDefinitionType	[0,1]
offset	property duration	[0,1]
expression	property ExpressionType	[0,1]	Expression that is supposed to return the timestamp.

Items
- description
  
  Flags: RAM,runtime
  
  Multiplicity: [0,1]
- referenceTime
  
  Flags: RAM,runtime
  
  Multiplicity: [0,1]
- offset
  
  Flags: RAM,runtime
  
  Multiplicity: [0,1]
- expression
  
  Flags: RAM,runtime
  
  Multiplicity: [0,1]
  
  Expression that is supposed to return the timestamp. The expression may return null. In that case the time constraint will be considered unsatisfied.