Software redundancy is an essential mechanism in engineering. Different forms of redundant design are the core technology of well-established reliability and fault tolerant mechanisms in traditional engineering as well as in software engineering. In this paper we discuss intrinsic software redundancy, a type of redundancy that is not added explicitly at design time to improve runtime reliabilit...

Article history: Received 14 August 2013 Received in revised form 29 June 2014 Accepted 27 July 2014 Available online 11 August 2014

Component importance analysis is to measure the effect on system reliability of component reliabilities, and is used to the system design from the reliability point of view. On the other hand, to guarantee high reliability of real-time computing systems, redundancy has been widely applied, which plays an important role in enhancing system reliability. One of commonly used type of redundancy is ...

This paper studies the three-state series-parallel (S-P) devices network reliability redundancy allocation problem (RAP) whose different components is paralleled, and the objective function is maximized with cost and weight constraints. A new model is built. A new algorithm is constructed by using an objective function, that is, the discrete particle swarm optimization algorithm with compressio...

Abstract Reliability allocation is the key issue of reliability designing. CNC machine is a complex product. There are many influence factors of reliability allocation. A part of them cannot be accurately measured but be evaluated by the experts. Therefore it’s difficult for reliability allocation. In this paper, we consider a variety of criteria for conducting reliability allocation. A method ...

Train control system is a vital system due to controlling the speed and interlocking of train in railway. The train control system is designed by double module or triple module system as a vital system. Hardware redundancy means to use additional hardware to defect and tolerant faults. There are three forms of hardware redundancy: passive, active and hybrid. Passive redundancy architecture achi...