Menu
Home
People
Places
Arts
History
Plants & Animals
Science
Life & Culture
Technology
Reference.org
Operational availability
open-in-new
<p>Operational availability in <a href="/facts/Systems_engineering/gFwRmkDp">systems engineering</a> is a measurement of how long a system has been available to use when compared with how long it should have been available to be used. </p>