The extent to which a system or device is operable.(noun)
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Use "operability" in a sentence
"But the difference in size, approach, and (likely) operability is huge."
"About 5 minutes after ESAS was published the usual chiming began - if we can't get it to orbit, operability is a mute point!."
"At Gubbio, the hooks for both are located not inside but rather above their cabinets, a condition that would influence the "operability" of the respective cabinet doors, as with the rectangular glass mirror at Urbino. 33 Also, it is worth keeping in mind that many of these "suspended" objects are shaped like letters of the alphabet."