System Reliability Modeling of Hardware, Software, and Interactions of Hardware and Software  
Author Mengmeng Zhu


Co-Author(s) Hoang Pham


Abstract Many hardware reliability models and software reliability models have been developed to address failures in hardware subsystems and software subsystems, respectively. However, the interactions between hardware and software are often neglected. In this study, system failures are classified into three categories: hardware failures, software failures and hardware-software interaction failures. In particular, we classify hardware-software interaction failures into two categories: hardware-induced software failures and software-induced hardware failures. We develop a Markov-based unified system reliability model accounts all categories of system failures. The impact on system reliability as the changes of transition parameters is illustrated by numerical example.


Keywords system reliability modeling, hardwaresoftware interactions, Markov process
    Article #:  RQD25-73
Proceedings of 25th ISSAT International Conference on Reliability & Quality in Design
August 1-3, 2019 - Las Vegas, NV, U.S.A.