Abstract
With the popularity of computers, all kinds of computer software become indispensable to people's life. The main causes that fault occurs in computer software are that software non-compatibility, illegal operation, error operating, irrational software setup, computer prevention. And there are six symptoms. Using the phase- divided dynamic adjustment weight coefficient method combined with the data inspected by computer software, expert experience, and mechanism analysis to determine the fuzzy diagnosis matrix, the symptoms and causes are established fuzzy corresponding relationship, the fuzzy model of computer software fault diagnosis is established, through the fault symptoms of computer software to judge its fault causes so as to handle faults quickly and ensure the normal operation of computer software.
