class Validity(val iasValidity: IasValidity) extends Ordered[Validity]
The validity of an alarm or monitor point value is a measure of how much the value reflects actual situation of a monitored system.
Basically, if the value is produced propagated in time then it is reliable otherwise is unreliable.
An invalid value or alarm is displaied with a proper color coding (or other visualization strategy) to let the operator aware that the information provided by the IAS might not reflect the actual situation.