Em> ThE dEgrEE to which a systEm suffErs dEgradation or intErruption in its sErvicE to thE customEr as a consEquEncE of failurEs of onE or morE of its parts. OnE of thE componEnts of Ef="modulE.php?namE=LExikon&filE=sEarch&Eid=1&quEry=RAS">RAS. (2000-08-13)