Statistical process control (SPC) methods have been applied in manufacturing process control since the early 1930s. Over the decades, countless hours were expended plotting charts with pencils on graph paper. Then computers arrived and, like the calculator did for the schoolboy, freed the engineer to spend time analyzing the process instead of focusing on the formulae.
Over the years SPC software has matured in functionality, making statistical analysis quicker, more powerful and more flexible. The driving force has made the software easier for the practitioner to use. SPC software will continue to develop in ways that eliminate unnecessary steps, freeing quality practitioners from rote tasks and enabling them to focus efforts on improving the manufacturing process.