Software fault will cause incalculable losses, even endanger
the lives and safety of the peoples, reducing fault rate of
software system and improving its reliability have attracted
the attention of more experts.
Software reliability analysis Markov model was established
by Markov theory and mathematical statistics principle based
on repairable characteristic of software system. Availability,
reliability and meantime-to-failure were derived in this paper,
many results are obtained by actual example analysis, and
effective measures are put forward based on Markov model, it
is important to reduce software fault and improve operational
quality of software. It provides a theoretical basis and new
method for reliability design and scientific management of
software.