Reliability
u DEFINITION:  Probability of a successful
outcome of the system or component.
l Reliability is also defined in terms of system
requirements.
u Thus, to evaluate a system it is necessary to know the
goals and purposes of the system.
l Reliability is a probabilistic term.
u Never seen the perfect system.
u Calculation of Reliability
l R = (# of successful operations)/(total # of operations)
l R = 1 - EP