Purpose: Planning an accelerated life test (ALT) for a product is an important task for reliability practitioners. Traditional methods to create an optimal design of an ALT are often computationally burdensome and numerically difficult. In this paper, the authors introduce a practical method to...

Clustered data from a product’s reliability experiments may arise from many sources of heterogeneity in practice such as different test units suppliers, pieces of equipment, and operators. It is of interest for reliability practitioners to investigate how to plan such experiments with the aim...