Explanation
A control chart is a quality control chart that tracks trends in project execution by plotting the values of a quality metric over time against established control limits. A control chart can help the project team monitor the variation and stability of a process, identify the causes of variation, and take corrective actions if the process goes out of control. A control chart can also show the performance of a process in relation to the customer specifications and expectations. A control chart is different from a RACI chart, which shows the roles and responsibilities of project team members. A control chart is also different from a PERT chart, which shows the sequence and duration of project activities. A control chart isnot a Pareto chart, which shows the frequency and impact of problems or defects. References:
Quality Control in Project Management, paragraph 6
15 Quality management tools in project management, paragraph 3
Control Chart: A Key Tool for Ensuring Quality and Consistency, paragraph 1 Control Chart - Project Management Knowledge, paragraph 1