“…5 These methods are described in textbooks on statistical quality control like Montgomery, 6 Ryan, 7 Kenett et al, 8 and Vardeman and Jobe, 9 to name a few. In addition to some more or less straightforward modifications, such as the combination charts of Lucas, 10,11 schemes with adaptive parameters like Capizzi and Masarotto, 12 and generalized likelihood ratio approaches (unspecified out-of-control mean), for example, Capizzi, 13 we have been facing for the last 20 years some unfortunate developments. Quite a substantial set of charts have been proposed, which share one common feature: they often exhibit excellent out-of-control zero-state average run-length (ARL) performance, which implies quick detection of changes that happen right at the beginning of the monitoring, but their detection performance deteriorates substantially when the process change happens later.…”