There are many ways to assess quality control, and professional project managers (PMPs) make good use of them. When you take the PMP certification exam, you should be able to apply the following quality control tools:
Cause and effect diagram. Diagrams that define the inputs to a process or product in order to identify potential causes of defects.
Histogram. A bar chart showing a distribution of variables.
Run chart. Show trends in the variation of a process over time.
Scatter diagram. Shows the relationship between two variables.
Control chart. A graphic display of process data over time and against established control limits, and that has a centerline that assists in detecting a trend of plotted values toward either control limit.
Flowcharting. The depiction in a diagram format of the inputs, process actions, and outputs of one or more processes within a system.
Pareto chart. A histogram, ordered by frequency of occurrence, that shows how many results were generated by each identified cause.
Inspection. Examining or measuring to verify whether an activity or a component, product, result, or service conforms to specified requirements.