In the paper, the problem of uncertain data in reliability analysis of complex systems is examined. The analysis is addressed to system reliability assessment with imprecise knowledge of component reliabilities, an item becoming more and more important for systems affected by considerable...

Many products carry a warranty that offers protection for the consumer against low quality. These warranties are often two dimensional, such as an automobile warranty that guarantees repair up to a certain time and mileage after sale. This paper considers the problem of assessing the size of a...

In this paper we study the first passage time for a damage process to exceed a given threshold or for the maximal increment of this process to pass a certain critical value. Conditions under which this first passage time possesses the NBU, the IFRA or the IFR properties are studied. An...

This paper presents a simple model to contrast the benefit and cost of renovating public housing units against the benefit and cost of building new ones. Benefit is measured as the additional expected life created, and empirically-estimated survivor functions for housing are used to calculate...

We consider the problem of scheduling n tasks on two identical parallel processors. Task i has a processing time of one time unit, but might have to undergo processing for a second time unit with probability p_i, i.e., the processing time distributions of the tasks have mass only on one and on...