Reliability engineering Old problems and new challenges. The first recorded usage of the word reliability dates back to the 1. Since then, the concept of reliability has become a pervasive attribute worth of both qualitative and quantitative connotations. In particular, the revolutionary social, cultural and technological changes that have occurred from the 1. This has led to the rise of reliability engineering as a scientific discipline. Bayesian Belief Networks As A Software Productivity Estimation Tool' title='Bayesian Belief Networks As A Software Productivity Estimation Tool' />In this paper, some considerations are shared with respect to a number of problems and challenges which researchers and practitioners in reliability engineering are facing when analyzing todays complex systems. The focus will be on the contribution of reliability to system safety and on its role within system risk analysis. S1364815216300494-gr4.jpg' alt='Bayesian Belief Networks As A Software Productivity Estimation Tool' title='Bayesian Belief Networks As A Software Productivity Estimation Tool' />. Introduction. This paper collects a number of considerations on problems and challenges of current reliability engineering research that were shared during the. Microsoft Outlook Automated Email Response Out Of Office.