If the chipper breaks, he may be unable to complete his current job and may have to cancel future jobs until he can obtain a replacement. Highly reliable systems should not rely on any such individual component.įor instance, the owner of a small tree care company may only own one woodchipper. The assessment of a potential SPOF involves identifying the critical components of a complex system that would provoke a total systems failure in case of malfunction. Redundancy can be achieved at various levels. Systems can be made robust by adding redundancy in all potential SPOFs.