“…Numerous control charts have been developed to monitor the mean of system measurements over time, and include the Shewhart chart, cumulative summation (CUSUM) chart (Page, 1954), and the EWMA chart (Crowder & Hamilton, 1992;Hawkins & Olwell, 1998;Hunter, 1986;Lucas & Saccucci, 1990). Nowadays, the application of control charts has been extended to many areas, such as economics, medicine, environment, and others (Biau, Dessolle, & Porcher, 2011;Frisén, 2009;Heffernan et al, 2004). The traditional Shewhart control charts are very popular in statistical process control.…”