Function Design of Fault-Inserter

For a fault-tolerance system,it should verification the capacity of fault detection,isolation and location when the system is failure.So the fault insertion technology is reserach.The fault-inserter is a device that can change the status of software and hardware with in the computer under proper control and a method.This changed state can be considered as failure state.And then the failure state maybe trig the fault process mechanism,and all the designed function and performance should be checked under this condition.