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Parent Package: history
Class INTERVAL_EVENT


EVENT
   |
   +--INTERVAL_EVENT

Defines a single interval event in a series.

Attributes
SignatureOptionalityMultiplicityConstantDocumentation
 math_function : DV_CODED_TEXT  --  Mathematical function of the data of this event, e.g. “maximum”, “mean” etc. Coded using openEHR Terminology group “event math function”. 
 sample_count : Integer 0..1  --  Optional count of original samples to which this event corresponds. 
 width : DV_DURATION  --  Length of the interval during which the state was true. Void if an instantaneous event. 


Template Parameters
NameTypeDefault Value
  

Operations
SignatureConstraintsDocumentation
 interval_start_time() : DV_DATE_TIME   

Constraints
NameExpression
Interval_start_time_validinv: interval_start_time <> Void 
Math_function_validityinv: terminology(Terminology_id_openehr). has_code_for_group_id(Group_id_event_math_function, math_function.defining_code) 
Width_validinv: width <> Void