Statistical Control of Multiple-Stream Processes: A Shewhart Control Chart for Each Stream

ABSTRACT Shewhart control charts for multiple stream processes (MSP) are studied in this article, including control limits, correlation influence, and average run lengths. Graphs are presented to aid in the design of control charts. Subgroups of one unit per stream or partial samples were taken. An example based on industry data is presented and analyzed to show the application and a comparison with other well-known methodologies for statistical control of MSP.