One of the leading manufacturing SPC software providers is Tuppas software. Their software building process involves utilizing a team oriented environment where the software is highly customized and user friendly. Not only will the software developed by Tuppas conform to your environment, it will have the capability of changing as your business needs change. Statistical process control (SPC) involves using statistics to measure and analyze the variation in processes in addition to other techniques, such as sampling plans, experimental design, variation reduction, process capability analysis, and process improvement plans. Most often used for manufacturing processes, the intent of SPC is to monitor product quality and maintain processes to fixed targets.

SPC is used to monitor the consistency of processes used to manufacture a product as designed. It aims to get and keep processes under control. No matter how good or bad the design, SPC can ensure that the product is being manufactured as designed as the company intended. SPC can be used to maintain the consistency of how the product is made and, therefore, of the manufactured product itself and its reliability.

A primary tool used for SPC is the control chart, a graph representing certain descriptive statistics for specific quantitative measurements of the manufacturing process. These descriptive statistics are displayed in the control chart in comparison to their "in-control" sampling distributions. The comparison detects any unusual variation in the manufacturing process, which could indicate a problem with the process. Several different descriptive statistics can be used in control charts and there are several different types of control charts that can test for different causes. Control charts are also used with product measurements to analyze process capability in addition to continuous process improvement efforts.