SPC, or Statistical Process Control, is a method used in quality control that employs statistical techniques to monitor and control a process. By analyzing data collected from the process, organizations can identify variations and trends, allowing them to maintain consistent quality in their products or services. The primary tools of SPC include control charts, which visually display process data over time, and process capability analysis, which assesses how well a process meets specified limits. Implementing SPC helps organizations reduce waste, improve efficiency, and enhance customer satisfaction by ensuring that processes remain stable and predictable.