The application of statistical methods to monitor a process is critical ensure its stability. Statistical control aims detect and identify abnormal patterns that disrupt the natural behaviour process. Most studies in literature are focused on recognising single patterns. However, many industrial processes, more than one unusual chart pattern may appear simultaneously, i.e., concurrent (CCP). Th...

This paper studies an attribute control chart for monitoring the number of nonconforming items using a triple sampling (TS-np) which has not yet been applied to charts. The design and procedure decision about state process are given. Mathematical expressions average run length (ARL) in-control out-of-control processes sample (ASN) A bi-objective genetic algorithm that seeks minimize ASN probabi...