Effects of System Complexity on Reliability
Effects of System Complexity on Reliability
- In general reliability goes down as number of components goes up (i.e. as complexity goes up).
- Components in a Series
- In a series if any single component fails the whole system fails - the four tires on the car.
- Rs = R1 * R2 * ... * RnExamples: All components have reliability of 0.90.n = 1 | Rs = = .90n = 2 | Rs = .9*.9 = .81n = 3 | Rs = .9*.9*.9 = .73n = 10 | Rs = .910 = .35