Dual threshold values are correspondent to soft fault and hard failure.

A new method of analog circuits fault dictionary, is presented in this paper, it can be used for soft fault diagnosis.

By using the principle of various spatial curve classification and using time-delay neural network,the time-delay neural network can distinguishthe little circuit response difference caused by the soft fault and can classify the circuit response properly within the circuit part s tolerance,so the network can be used in diagnosis of the of analog circuitsoft fault.

Considering the effect of competing hard and soft failure modes on product failure,an extended reliability analysis method is introduced based on system reliability theory.

The article emphasises on the analysis of the functions and structure of the hard Disk master boot record and system boot record,illustrates the start-up process of the hard Disk of microcomputer and,propoeses methods of recovery from hard Disk soft failure.

Analysis on Software Failure Mode, Effect and Criticality of CNC System;

Reliability Analysis for Software Failure of CNC System;

Rapid solution of software failure in NZ-24 seismograph;

Software plays a more and more important role in modern shipborne Command Control System, and the influences of software fault on system reliability are more outstanding, it is necessary to analysis software fault.

This article analyzes the cause of the software fault,fully discusses the software running environment and raises the method of troubleshooting software fault.

Node-voltage increments based soft fault diagnosis of nonlinear analog circuits;

Based on the slope fault model,this paper presents a fault dictionary method for soft fault diagnosis of modular analog circuit based on closed-loop operational amplifier(CLOA).

Based on the support vector machine(SVM) 1-v-1 and DDAG(decision directed acyclic graph) multi-classified algorithm,a new approach to the soft fault diagnosis of analog circuits is presented.