Alarm rationalization is a step that should be taken to avoid the generation of unnecessary alarms. Otherwise the alarm may end up of the alarm list and stay there for a while.
To alarm or not to alarm? That is the question. There are many control room alarm screens with alarms that are hours, days, and sometimes weeks old. Why did these alarms show up on the screens if they were not important enough to address at the time they occurred? Was the operator in a hurry to acknowledge the alarm to stop the horn? Are there so many alarms that come in that the operator is overwhelmed by the number of alarms that come in. Are there multiple alarms for the same signal or occurrence? Is the alarm just not that important?