Abstract Some recent studies have proved that charts with variable sample size ( VSS ) detect moderate or larger shifts in normal and stable processes more quickly than the Standard Shewhart ( SS ) chart. But the statistical efficiency of charts, the speed at which they detect smaller shifts of...

Some recent studies have proved that charts with variable sample size (VSS) detect moderate or larger shifts in normal and stable processes more quickly than the Standard Shewhart (SS) chart. But the statistical efficiency of charts, the speed at which they detect smaller shifts of the process...

Manufacturing firms are facing a "competitive gridlock" despite implementing strategic organizational and technological changes. Building on the product-process matrix and developments in organizational learning, we develop a two-level model that focuses on balancing the decisions related to the...