Compares optimum constant‐stress and simple step‐stress ALTs for the Weibull distribution. The purpose is to quantify the advantage of using step‐stress testing in comparison to constant‐stress testing when censoring is likely to occur at the lower levels of stress. Assumes that a...

Summarizes part of the work carried out to date on seeking analytical solutions to the two‐sample problem with censored data in the context of reliability and maintenance optimization applications. For this purpose, reviews non‐parametric two‐sample tests for censored data and details...

Demonstrates the application of the recently proposed shifting mean heuristic to statistical quality control situations. Proposes the heuristic search procedure primarily as a tool for retrospective (or post mortem ) data analysis, retrospectively examining a known data set to establish shifts...

“Twin metric” control preserves the simple, intuitive graphical features of Shewhart control charts, while incorporating the much improved performance of CUSUM. Two metrics are plotted on the twin metric control chart at each sample interval; the Shewhart value and a simplified CUSUM value....