Modelling the re-design decision for a warranted product

A prototype model is presented for the potential re-design decision once field data becomes available for a product under warranty. Attention is given to possible techniques for estimating warranty returns for both the existing product beyond the data capture period and for the re-designed product for which there is no field data. The roles and influence of the key parameters and decision variables are explored. Numerical examples based upon realistic data pertinent to domestic consumer products are used to illustrate the various models developed.