| Subject | English | Italian |
| comp., MS | unit availability | disponibilità di unità (Amount of time, expressed as a percentage or a decimal number, that a resource can be scheduled for assigned work. It refers to the availability of a resource; for example, a resource may be available 50%, 100%, or 300% of full time) |
| nucl.phys. | unit availability factor | fattore di disponibilità per unità |