In the IT field the term “fault tolerance” is often widely used as “reliability improvement”. The question to be clarified is the relationship between reliability and fault tolerance. In a general sense reliability will be understood as ability of a component/system to function correctly over a specified period of time, mostly under predefined conditions. Fault tolerance is defined as the abili...

The paper presents common cascade control architecture where specific kind of redundancy could be considered. There are different approaches how to increase the reliability of networked control systems. Common approach uses redundant components in control system i.e. passive or active redundancy. We deal with quasi-redundant subsystems (shared redundancy) which could be very useful when critica...

This paper investigates the use of redundancy and self repairing against node failures indistributed storage systems using a novel non-MDS erasure code. In replication method, accessto one replication node is adequate to reconstruct a lost node, while in MDS erasure codedsystems which are optimal in terms of redundancy-reliability tradeoff, a single node failure isrepaired after recovering the ...

One of the most common and successful approaches for integrated supply chain management (SCM) is vendor-managed inventory (VMI). In VMI, a vendor takes control decisions retailers. To establish long-run relationship between retailer, it necessary to consider two impactful factors: vendors retailers' reliability, optimal selection For this purpose, redundancy allocation problem (RAP), as an effe...

Traditionally in redundancy allocation problem (RAP), it is assumed that the redundant components are used based on a predefined active or standby strategies. Recently, some studies consider the situation that both active and standby strategies can be used in a specific system. However, these researches assume that the redundancy strategy for each subsystem can be either active or standby and d...

since the 1990’s, network reliability has been considered as a new index for evaluating transportation networks under uncertainty. a large number of studies have been revealed in the literature in this field, which are mostly dedicated to developing relevant measures that can be utilized for the evaluation of vulnerable networks under different sources of uncertainty, such as daily traffic flow...