In recent years, there has been a resurgence in the development of control charts for monitoring the mean of the ratio of two correlated variables. However, most of the existing research has focused on the univariate mean of the ratio of two correlated variables under the assumption that the...

In this paper, we plan to propose individual and integrated multivariate Hotelling T2 control chart for a multi component load sharing system. In fact, the multivariate Hotelling T2 control chart for monitoring process under assumptions that the vector of signals follows a multivariate normal...

The periodic nature of auditing and monitoring allows for a valuable time-delay between the occurrence of an important business event and the analysis of that event. Advances in technology provide opportunities to reduce the time delay between the occurrence and analysis of a business process...

The adaptive EWMA (AEWMA) charts have been broadly perceived as an effective process monitoring instrument due to their capability to rapidly detect the parameter(s) shifts of diverse sizes. In this paper, a function based AEWMA control chart is designed to efficiently observe the stability of...

We carried out an Internet search of publicly available organization charts for the 2,000 largest companies according to Forbes 2019 ranking. We collected 913 organization charts of 648 companies, but only a fraction allowed reproduction. Although we do not have permission to make this visual...