System level fault dictionary generation

A fault dictionary generation (FDG) system, which generates a system-level fault dictionary automatically from structural description of computer system hardware, was developed and applied to a large scale computer system. Built-in diagnosis (BID), which is effective in detecting and locating a fault, is described briefly. The mechanism to generate a fault dictionary, based on BID capability, is discussed. The techniques used in tracing a circuit to determine a suspected doubtful circuit domain are explained. The program flow for generating a dictionary from the set of suspected doubtful circuits domain is described. It is shown that FDG is very effective for use in improving accuracy and resolution for the dictionary