A review of fault detection methods for large systems

A critique is made of current research into practical fault finding procedures for the maintenance of complex engineering systems. The half split and other methods currently in practice are analysed and their main weakness shown to be that no account is taken of the various costs involved. Also analysed are cost conscious methods which are useful in diagnosis training or in designing fault detection guides. A brief look is taken at advanced diagnostic techniques which are aided by an on-line computer in selecting the next test to be made.