Which tool helps to assess whether products are produced within quality specifications?

Control charts are a statistical tool used to monitor and control a process by displaying how a process varies over time. They help to assess whether the process variations are consistent and within predefined quality specifications. By plotting data points in a time sequence, control charts can highlight trends, shifts, or any erratic behavior in the production process. This visual representation enables organizations to identify whether the products are consistently produced within the specified quality limits, facilitating proactive adjustments to maintain quality standards.

While statistical analysis provides broader insights into data trends and variability, control charts specifically focus on maintaining quality control in ongoing processes. Quality audits are more comprehensive evaluations of overall compliance to quality systems and standards, not just real-time monitoring of product quality. Process assessment examines the effectiveness and efficiency of the entire process rather than specifically focusing on the quality of the produced items. Thus, control charts are the most specialized tool for assessing if products meet quality specifications continuously.