Software reliability engineering is focused on engineering techniques for developing and maintaining software systems whose reliability can be quantitatively evaluated. In order to estimate as well as to predict the reliability of software systems, failure data need to be properly measured by various means during software development and operational phases. Moreover, credible software reliability models are required to track underlying software failure processes for accurate reliability analysis and forecasting. Although software reliability has remained an active research subject over the past 35 years, challenges and open questions still exist. In particular, vital future goals include the development of new software reliability engineering paradigms that take software architectures, testing techniques, and software failure manifestation mechanisms into consideration. In this paper, we review the history of software reliability engineering, the current trends and existing problems, and specific difficulties. Possible future directions and promising research subjects in software reliability engineering are also addressed.
['Michael R. Lyu']
Software Reliability Engineering: A Roadmap